/* Smart PA E-Portfolio — main.css (v3: modern EdTech redesign) */
@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700;800&family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    /* Brand palette — indigo/violet education theme */
    --primary:        #4f46e5;
    --primary-dk:     #3730a3;
    --primary-lt:     #818cf8;
    --primary-light:  #eef2ff;
    --accent:         #06b6d4;
    --accent-light:   #cffafe;
    --success:        #10b981;
    --success-light:  #d1fae5;
    --warning:        #f59e0b;
    --warning-light:  #fef3c7;
    --danger:         #ef4444;
    --danger-light:   #fee2e2;
    --bg:             #f8fafc;
    --bg-soft:        #f1f5f9;
    --card:           #ffffff;
    --text:           #0f172a;
    --text-2:         #334155;
    --muted:          #64748b;
    --border:         #e2e8f0;
    --border-soft:    #f1f5f9;
    --radius-xs:      6px;
    --radius-sm:      10px;
    --radius:         14px;
    --radius-lg:      20px;
    --radius-xl:      28px;
    --shadow-xs:      0 1px 2px rgba(15,23,42,.05);
    --shadow-sm:      0 2px 8px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.04);
    --shadow:         0 4px 16px rgba(15,23,42,.08), 0 2px 6px rgba(15,23,42,.04);
    --shadow-lg:      0 12px 36px rgba(15,23,42,.12), 0 4px 10px rgba(15,23,42,.05);
    --shadow-xl:      0 24px 64px rgba(15,23,42,.16), 0 8px 20px rgba(15,23,42,.06);
    --sidebar-w:      260px;
    --font:           'Sarabun', 'Inter', 'Segoe UI', sans-serif;
    --font-display:   'Inter', 'Sarabun', sans-serif;
    --transition:     all .18s cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after { box-sizing: border-box; }
body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dk); text-decoration: underline; }
h1, h2, h3, h4 { margin: 0 0 .45em; font-weight: 700; letter-spacing: -.015em; line-height: 1.3; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }
code {
    background: var(--bg-soft); padding: 2px 8px; border-radius: var(--radius-xs);
    font-size: 12.5px; color: var(--primary-dk); font-family: 'Fira Code', monospace;
}
hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
p { margin: 0 0 .75em; }

/* ===================== LOGIN / REGISTER ===================== */
.page-login {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 24px;
    background:
        radial-gradient(ellipse at 10% 10%, rgba(99,102,241,.18) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 90%, rgba(6,182,212,.20) 0%, transparent 50%),
        linear-gradient(145deg, #1e1b4b 0%, #312e81 40%, #1e3a8a 100%);
}
.login-wrap { width: 100%; max-width: 460px; }
.login-card {
    background: rgba(255,255,255,.97); backdrop-filter: blur(20px);
    border-radius: var(--radius-xl); padding: 48px 44px;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255,255,255,.8);
}
.login-logo { text-align: center; margin-bottom: 34px; }
.logo-icon {
    font-size: 40px; display: inline-flex; align-items: center; justify-content: center;
    width: 80px; height: 80px; border-radius: 24px;
    background: linear-gradient(135deg, #4f46e5, #06b6d4);
    box-shadow: 0 10px 28px rgba(79,70,229,.4), 0 2px 6px rgba(79,70,229,.2);
    margin-bottom: 10px;
}
.login-logo h1 { font-size: 1.35rem; margin: 14px 0 5px; color: var(--text); }
.login-logo p { color: var(--muted); font-size: 13.5px; margin: 0; line-height: 1.55; }
.login-footer { text-align: center; margin-top: 20px; font-size: 13.5px; color: var(--muted); }
.login-divider {
    display: flex; align-items: center; text-align: center;
    margin: 22px 0; color: var(--muted); font-size: 12px;
}
.login-divider::before, .login-divider::after { content: ''; flex: 1; border-bottom: 1px solid var(--border); }
.login-divider span { padding: 0 14px; }
.btn-google {
    display: flex; align-items: center; justify-content: center;
    background: #fff; color: #3c4043; border: 1.5px solid #dadce0;
    font-weight: 600; border-radius: var(--radius-sm); gap: 10px;
    transition: var(--transition);
}
.btn-google:hover { background: #f8f9fa; text-decoration: none; border-color: #bcc0c7; box-shadow: 0 2px 8px rgba(0,0,0,.08); }

/* ===================== APP SHELL ===================== */
.app-layout { display: flex; min-height: 100vh; overflow-x: hidden; }

/* ---- Sidebar ---- */
.sidebar {
    width: var(--sidebar-w); flex-shrink: 0; position: sticky; top: 0; height: 100vh;
    overflow-y: hidden; display: flex; flex-direction: column;
    background: #0f172a; z-index: 50;
}
/* subtle texture stripe */
.sidebar::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background:
        radial-gradient(ellipse at 60% 0%, rgba(79,70,229,.25) 0%, transparent 60%),
        radial-gradient(ellipse at 30% 100%, rgba(6,182,212,.15) 0%, transparent 55%);
}
.sidebar-brand {
    position: relative; z-index: 1;
    display: flex; align-items: center; gap: 10px;
    padding: 14px 16px 12px; font-weight: 800; font-size: 14px; color: #fff;
    border-bottom: 1px solid rgba(255,255,255,.07); letter-spacing: -.01em;
}
.sidebar-brand-icon {
    width: 30px; height: 30px; border-radius: 8px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex; align-items: center; justify-content: center; font-size: 15px;
    box-shadow: 0 4px 12px rgba(79,70,229,.4); flex-shrink: 0;
}
.sidebar-brand-sub { font-size: 11px; color: rgba(255,255,255,.4); font-weight: 400; letter-spacing: .01em; margin-top: 1px; }
.sidebar nav { position: relative; z-index: 1; flex: 1; padding: 6px 10px; overflow-y: auto; }
.sidebar-section { font-size: 9.5px; font-weight: 700; letter-spacing: .08em; color: rgba(255,255,255,.25); text-transform: uppercase; padding: 10px 10px 4px; }
.sidebar nav a {
    display: flex; align-items: center; gap: 9px;
    padding: 7px 10px; color: rgba(255,255,255,.55); font-size: 12.5px; font-weight: 500;
    border-radius: var(--radius-sm); margin: 1px 0; transition: var(--transition);
    position: relative;
}
.sidebar nav a .nav-icon { font-size: 16px; width: 20px; text-align: center; flex-shrink: 0; }
.sidebar nav a:hover { background: rgba(255,255,255,.07); color: #fff; text-decoration: none; }
.sidebar nav a.active {
    background: linear-gradient(135deg, rgba(79,70,229,.8), rgba(99,102,241,.6));
    color: #fff; text-decoration: none;
    box-shadow: 0 2px 12px rgba(79,70,229,.35), inset 0 0 0 1px rgba(255,255,255,.1);
}
.sidebar nav a.active::before {
    content: ''; position: absolute; left: 0; top: 20%; bottom: 20%;
    width: 3px; background: #818cf8; border-radius: 0 2px 2px 0;
}
.sidebar-footer {
    position: relative; z-index: 1;
    padding: 8px 10px; border-top: 1px solid rgba(255,255,255,.07); flex-shrink: 0;
}
.sidebar-user {
    display: flex; align-items: center; gap: 10px;
    padding: 7px 10px; border-radius: var(--radius-sm);
    color: rgba(255,255,255,.7); font-size: 12px;
    transition: var(--transition); cursor: pointer;
}
.sidebar-user:hover { background: rgba(255,255,255,.06); color: #fff; text-decoration: none; }
.sidebar-avatar {
    width: 34px; height: 34px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700; color: #fff; flex-shrink: 0;
}

/* ---- Main content ---- */
.app-main { flex: 1; padding: 36px 44px; min-width: 0; max-width: 1200px; overflow-x: hidden; }
.page-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 30px; flex-wrap: wrap; gap: 14px;
}
.page-header h1 { font-size: 1.55rem; }
.page-header-actions { display: flex; gap: 10px; align-items: center; }

/* ===================== STAT CARDS ===================== */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card {
    background: var(--card); border-radius: var(--radius); padding: 22px 20px;
    box-shadow: var(--shadow-sm); border: 1px solid var(--border-soft);
    transition: var(--transition); position: relative; overflow: hidden;
}
.stat-card::after {
    content: ''; position: absolute; right: -20px; bottom: -20px;
    width: 80px; height: 80px; border-radius: 50%;
    background: var(--primary-light); opacity: .4;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.stat-num { display: block; font-size: 2rem; font-weight: 800; letter-spacing: -.03em; color: var(--text); line-height: 1.1; margin-bottom: 4px; }
.stat-lbl { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.stat-card.stat-ok   .stat-num { color: var(--success); }
.stat-card.stat-ok::after { background: var(--success-light); }
.stat-card.stat-warn .stat-num { color: var(--warning); }
.stat-card.stat-warn::after { background: var(--warning-light); }
.stat-card.stat-danger .stat-num { color: var(--danger); }
.stat-card.stat-danger::after { background: var(--danger-light); }

/* ===================== PANELS ===================== */
.panel {
    background: var(--card); border-radius: var(--radius); padding: 28px;
    margin-bottom: 24px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-soft);
}
.panel-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px; flex-wrap: wrap; gap: 10px;
    padding-bottom: 16px; border-bottom: 1px solid var(--border-soft);
}
.panel-head h2 { font-size: 15.5px; margin: 0; }
.panel + .panel { margin-top: -8px; }

/* ===================== TABLE ===================== */
.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
/* ตารางทุกตารางในระบบ (ทั้งฝั่งแอดมินและผู้ใช้) เลื่อนแนวนอนได้บนจอแคบ แทนที่จะดันหน้าล้นออกไป
   ครอบคลุมทุกหน้าที่ใช้ class="table" โดยไม่ต้องแก้ไฟล์ทีละไฟล์ */
@media (max-width: 900px) {
    .table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
}
.table th {
    text-align: left; padding: 12px 14px; border-bottom: 2px solid var(--border-soft);
    color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
    font-weight: 700; background: var(--bg-soft);
}
.table th:first-child { border-radius: var(--radius-xs) 0 0 0; }
.table th:last-child  { border-radius: 0 var(--radius-xs) 0 0; }
.table td { padding: 14px 14px; border-bottom: 1px solid var(--border-soft); vertical-align: middle; }
.table tbody tr { transition: background .1s; }
.table tbody tr:hover { background: #f8fafc; }
.table td small { color: var(--muted); font-size: 11.5px; display: block; margin-top: 2px; }
.empty { text-align: center; color: var(--muted); padding: 48px !important; font-size: 14px; }

/* ===================== BADGES ===================== */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 999px;
    font-size: 11px; font-weight: 700; letter-spacing: .02em; white-space: nowrap;
}
.badge-active, .badge-paid       { background: var(--success-light); color: #065f46; }
.badge-trial                     { background: #dbeafe; color: #1e40af; }
.badge-pending, .badge-pending_payment { background: var(--warning-light); color: #92400e; }
.badge-suspended, .badge-expired, .badge-failed, .badge-cancelled { background: var(--danger-light); color: #991b1b; }
.badge-member                    { background: var(--bg-soft); color: var(--muted); }

/* ===================== ALERTS ===================== */
.alert {
    padding: 14px 18px; border-radius: var(--radius-sm); margin-bottom: 22px;
    font-size: 14px; border-left: 4px solid transparent;
    display: flex; align-items: flex-start; gap: 10px;
}
.alert-success { background: var(--success-light); color: #065f46; border-color: var(--success); }
.alert-error   { background: var(--danger-light);  color: #991b1b; border-color: var(--danger); }
.alert-warning { background: var(--warning-light); color: #92400e; border-color: var(--warning); }
.alert-info    { background: var(--accent-light);  color: #164e63; border-color: var(--accent); }
.alert ul { margin: 4px 0 0; padding-left: 20px; }

/* ===================== FORMS ===================== */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field-full    { grid-column: 1 / -1; }
.form-field-checkbox { flex-direction: row; align-items: center; gap: 8px; }
.form-field label { font-size: 12.5px; font-weight: 700; color: var(--text-2); letter-spacing: .02em; }
.form-field input,
.form-field select,
.form-field textarea {
    padding: 11px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
    font-size: 14px; font-family: var(--font); transition: var(--transition);
    background: var(--card); color: var(--text); width: 100%;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--primary); outline: none;
    box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}
.form-field input:hover:not(:focus),
.form-field select:hover:not(:focus) { border-color: #94a3b8; }
.form-field input[type="color"] { padding: 4px; height: 44px; cursor: pointer; }
.form-actions { grid-column: 1 / -1; padding-top: 8px; display: flex; gap: 10px; align-items: center; }
.hint { color: var(--muted); font-size: 12.5px; margin-top: 6px; line-height: 1.5; }

/* ===================== BUTTONS ===================== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    padding: 10px 22px; border-radius: var(--radius-sm);
    border: 1.5px solid var(--border); font-size: 13.5px; font-weight: 600;
    font-family: var(--font); cursor: pointer; background: var(--card);
    color: var(--text-2); text-decoration: none; transition: var(--transition);
    white-space: nowrap; user-select: none; line-height: 1;
}
.btn:hover { background: var(--bg-soft); text-decoration: none; border-color: #c7d2e0; color: var(--text); }
.btn:active { transform: scale(.98); }
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #6366f1 100%);
    color: #fff; border: none;
    box-shadow: 0 4px 14px rgba(79,70,229,.35), 0 1px 3px rgba(79,70,229,.2);
}
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 6px 20px rgba(79,70,229,.45); transform: translateY(-1px); color: #fff; }
.btn-success { background: var(--success); color: #fff; border: none; box-shadow: 0 2px 8px rgba(16,185,129,.3); }
.btn-success:hover { background: #059669; color: #fff; }
.btn-danger  { background: var(--danger);  color: #fff; border: none; box-shadow: 0 2px 8px rgba(239,68,68,.3); }
.btn-danger:hover  { background: #dc2626; color: #fff; }
.btn-outline { border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-sm { padding: 7px 14px; font-size: 12px; border-radius: var(--radius-xs); }
.btn-full { width: 100%; justify-content: center; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none !important; }

/* ===================== QUICK ACTIONS (teacher dashboard) ===================== */
.quick-actions { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px, 1fr)); gap: 16px; margin-bottom: 28px; }
.action-card {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 28px 16px 24px; background: var(--card); border-radius: var(--radius);
    text-align: center; font-weight: 600; color: var(--text-2); font-size: 13.5px;
    line-height: 1.45; box-shadow: var(--shadow-sm); border: 1px solid var(--border-soft);
    transition: var(--transition); gap: 12px; position: relative; overflow: hidden;
}
.action-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0; transition: opacity .18s;
}
.action-card .action-icon { font-size: 32px; display: block; }
.action-card:hover {
    color: var(--primary); text-decoration: none;
    transform: translateY(-4px); box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}
.action-card:hover::before { opacity: 1; }

/* ===================== TRIAL COUNTDOWN BANNER ===================== */
.trial-banner {
    background: linear-gradient(135deg, #1e3a8a, #312e81);
    border-radius: var(--radius); padding: 20px 26px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 20px; margin-bottom: 28px; color: #fff; flex-wrap: wrap;
}
.trial-banner-left { display: flex; align-items: center; gap: 14px; }
.trial-banner-icon { font-size: 36px; }
.trial-banner-title { font-size: 15px; font-weight: 700; margin-bottom: 3px; }
.trial-banner-sub { font-size: 13px; opacity: .75; }
.trial-days {
    background: rgba(255,255,255,.15); border-radius: 12px; padding: 12px 22px;
    text-align: center; flex-shrink: 0;
}
.trial-days-num { font-size: 2rem; font-weight: 800; line-height: 1; display: block; }
.trial-days-lbl { font-size: 11px; opacity: .7; margin-top: 2px; display: block; letter-spacing: .04em; }

/* ===================== DOCUMENT CARDS (teacher/documents) ===================== */
.doc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.doc-card {
    background: var(--card); border-radius: var(--radius); border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm); transition: var(--transition); overflow: hidden;
}
.doc-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.doc-card-header {
    padding: 18px 20px 14px; display: flex; align-items: flex-start; gap: 14px;
    border-bottom: 1px solid var(--border-soft);
}
.doc-type-icon {
    width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; font-size: 20px;
    background: var(--primary-light);
}
.doc-card-info { min-width: 0; }
.doc-card-title { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.doc-card-meta { font-size: 12px; color: var(--muted); }
.doc-card-body { padding: 14px 20px; }
.doc-card-actions { padding: 12px 20px; border-top: 1px solid var(--border-soft); display: flex; gap: 8px; justify-content: flex-end; }

/* ===================== UPLOAD ZONE ===================== */
.upload-zone {
    border: 2px dashed var(--border); border-radius: var(--radius);
    padding: 40px 24px; text-align: center; transition: var(--transition); cursor: pointer;
    background: var(--bg-soft); color: var(--muted);
}
.upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--primary); background: var(--primary-light); color: var(--primary);
}
.upload-zone-icon { font-size: 40px; display: block; margin-bottom: 12px; }
.upload-zone-text { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.upload-zone-hint { font-size: 12.5px; }

/* ===================== PA WRITER ===================== */
.writer-layout { display: grid; grid-template-columns: 1fr 280px; gap: 24px; align-items: start; }
.writer-main { display: flex; flex-direction: column; gap: 16px; }
#reportContent {
    width: 100%; font-family: var(--font); font-size: 14.5px; padding: 18px;
    border: 1.5px solid var(--border); border-radius: var(--radius-sm); line-height: 1.8;
    resize: vertical; min-height: 300px; transition: var(--transition);
}
#reportContent:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(79,70,229,.1); }
.writer-sidebar { background: var(--card); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-soft); }
.writer-sidebar h3 { font-size: 13.5px; margin-bottom: 14px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.report-list { list-style: none; padding: 0; margin: 0; }
.report-list li { padding: 10px 12px; border-radius: var(--radius-sm); font-size: 13px; margin-bottom: 4px; transition: background .12s; }
.report-list li:hover { background: var(--bg-soft); }
.report-list li.active { background: var(--primary-light); border: 1px solid rgba(79,70,229,.15); }
.report-list li a { display: block; color: var(--text); font-weight: 600; }
.report-list li small { color: var(--muted); display: block; margin-top: 2px; font-size: 11.5px; }

/* ===================== EXPORT PAGE ===================== */
.export-options { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 18px; }
.export-card {
    background: var(--card); border-radius: var(--radius); border: 1.5px solid var(--border-soft);
    padding: 28px 22px; text-align: center; cursor: pointer; transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.export-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.export-card.selected { border-color: var(--primary); background: var(--primary-light); }
.export-card-icon { font-size: 42px; display: block; margin-bottom: 12px; }
.export-card-title { font-size: 15px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.export-card-desc { font-size: 12.5px; color: var(--muted); line-height: 1.5; }

/* ===================== PORTFOLIO SETTINGS ===================== */
.template-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.template-card {
    border: 2px solid var(--border-soft); border-radius: var(--radius-sm); overflow: hidden;
    cursor: pointer; transition: var(--transition); position: relative;
}
.template-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.template-card.selected { border-color: var(--primary); }
.template-card.selected::after {
    content: '✓'; position: absolute; top: 8px; right: 8px;
    width: 22px; height: 22px; background: var(--primary); color: #fff;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 700;
}
.template-preview { height: 90px; }
.template-name { padding: 8px 10px; font-size: 12px; font-weight: 600; color: var(--text-2); background: var(--card); }
.color-picker-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.color-swatch {
    width: 32px; height: 32px; border-radius: 50%; cursor: pointer;
    border: 3px solid transparent; transition: var(--transition);
}
.color-swatch:hover, .color-swatch.selected { border-color: var(--text); transform: scale(1.1); }

/* ===================== GOOGLE BACKUP ===================== */
.backup-status-card {
    background: var(--card); border-radius: var(--radius); padding: 24px;
    border: 1px solid var(--border-soft); box-shadow: var(--shadow-sm);
    display: flex; align-items: center; gap: 20px; margin-bottom: 24px;
}
.backup-status-icon { font-size: 48px; flex-shrink: 0; }
.backup-status-connected { color: var(--success); }
.backup-status-disconnected { color: var(--muted); }

/* ===================== PUBLIC PORTFOLIO ===================== */
.portfolio-public { background: #fff; min-height: 100vh; }
.port-hero {
    position: relative; padding: 90px 24px 64px; text-align: center;
    color: #fff; overflow: hidden;
}
.port-cover { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .18; z-index: 0; }
.port-hero-overlay { position: absolute; inset: 0; z-index: 0; opacity: .85; background: var(--theme, var(--primary)); }
.port-hero-content { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; }
.port-hero h1 { font-size: 2rem; margin-bottom: 10px; text-shadow: 0 2px 12px rgba(0,0,0,.2); }
.port-hero p  { margin: 4px 0; opacity: .9; font-size: 15.5px; }
.port-avatar {
    width: 96px; height: 96px; border-radius: 50%; object-fit: cover;
    border: 4px solid rgba(255,255,255,.7); margin-bottom: 18px;
    box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.port-body { max-width: 900px; margin: 0 auto; padding: 56px 24px; }
.port-bio {
    margin-bottom: 42px; font-size: 15px; line-height: 1.9; color: var(--text-2);
    border-left: 4px solid var(--theme, var(--primary)); padding: 14px 20px;
    background: var(--bg-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.port-section { margin-bottom: 42px; }
.port-section-title {
    display: flex; align-items: center; gap: 12px;
    font-size: 1.15rem; margin-bottom: 20px; color: var(--text);
    padding-bottom: 12px; border-bottom: 2px solid var(--theme, var(--primary));
}
.port-docs { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.port-docs li {
    padding: 18px 20px; border-radius: var(--radius-sm);
    background: var(--bg-soft); border: 1px solid var(--border-soft);
    transition: var(--transition);
}
.port-docs li:hover { border-color: var(--theme, var(--primary)); background: #fff; }
.port-doc-img { max-width: 100%; border-radius: var(--radius-sm); margin-top: 10px; box-shadow: var(--shadow-sm); }
.port-footer { text-align: center; padding: 32px 24px; color: var(--muted); font-size: 12.5px; border-top: 1px solid var(--border); }

/* ===================== MISC UTILITIES ===================== */
.text-muted { color: var(--muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.divider { border: none; border-top: 1px solid var(--border-soft); margin: 24px 0; }

/* ===================== PRINT STYLES (for PDF export) ===================== */
@media print {
    .sidebar, .topbar, .no-print, .btn { display: none !important; }
    .app-main { padding: 0 !important; }
    body { background: white !important; color: black !important; font-size: 14pt; }
    .panel { box-shadow: none !important; border: 1px solid #ddd !important; break-inside: avoid; }
    @page { margin: 20mm; }
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px) {
    .sidebar { position: fixed; left: 0; top: 0; z-index: 100; transform: translateX(-100%); transition: transform .25s cubic-bezier(.4,0,.2,1); }
    .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-xl); }
    .sidebar-overlay { display: none; position: fixed; inset: 0; z-index: 99; background: rgba(15,23,42,.5); }
    .sidebar-overlay.show { display: block; }
    .app-main { padding: 20px 18px; }
    .form-grid { grid-template-columns: 1fr; }
    .writer-layout { grid-template-columns: 1fr; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .quick-actions { grid-template-columns: repeat(2, 1fr); }
    .login-card { padding: 32px 24px; }
    .trial-banner { flex-direction: column; text-align: center; }
    .export-options { grid-template-columns: repeat(2, 1fr); }
    .doc-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .quick-actions { grid-template-columns: repeat(2, 1fr); }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .export-options { grid-template-columns: 1fr; }
    .login-card { padding: 28px 20px; }
}

/* ===================== v4 ENHANCEMENTS ===================== */

/* ---- Topbar (mobile hamburger + page title) ---- */
.topbar {
    display: none; position: sticky; top: 0; z-index: 90;
    background: rgba(255,255,255,.95); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border); padding: 0 18px;
    height: 56px; align-items: center; gap: 14px;
    box-shadow: 0 1px 6px rgba(15,23,42,.06);
}
.topbar-toggle {
    background: none; border: none; cursor: pointer; padding: 6px;
    border-radius: var(--radius-xs); color: var(--text); transition: var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.topbar-toggle:hover { background: var(--bg-soft); }
.topbar-title { font-weight: 700; font-size: 15px; color: var(--text); flex: 1; }
.topbar-user { font-size: 13px; color: var(--muted); }
@media (max-width: 900px) { .topbar { display: flex; } }

/* ---- Trial Banner ---- */
.trial-banner {
    display: flex; align-items: center; gap: 14px;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border: 1.5px solid #f59e0b; border-radius: var(--radius);
    padding: 14px 20px; margin-bottom: 22px;
    box-shadow: 0 2px 10px rgba(245,158,11,.15);
}
.trial-banner-icon { font-size: 28px; flex-shrink: 0; }
.trial-banner-text { flex: 1; }
.trial-banner-text strong { display: block; font-size: 14px; color: #92400e; }
.trial-banner-text span { font-size: 12.5px; color: #b45309; }
.trial-banner-days {
    font-size: 28px; font-weight: 800; color: #92400e;
    font-family: var(--font-display); flex-shrink: 0;
    min-width: 50px; text-align: center;
}
.trial-banner-days small { display: block; font-size: 10px; font-weight: 600; letter-spacing: .03em; color: #b45309; }

/* ---- Dashboard Stat Cards upgrade ---- */
.stat-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 16px; margin-bottom: 26px;
}
.stat-card {
    background: var(--card); border-radius: var(--radius);
    padding: 22px 20px; box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-soft); transition: var(--transition);
    position: relative; overflow: hidden;
}
.stat-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.stat-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.stat-card .stat-icon {
    font-size: 28px; margin-bottom: 10px; display: block;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,.1));
}
.stat-card .stat-num {
    display: block; font-size: 2rem; font-weight: 800;
    color: var(--text); line-height: 1; margin-bottom: 4px;
    font-family: var(--font-display);
}
.stat-card .stat-lbl { font-size: 12px; color: var(--muted); font-weight: 600; letter-spacing: .02em; }

/* ---- Quick Actions upgrade ---- */
.quick-actions {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 14px; margin-bottom: 26px;
}
.action-card {
    background: var(--card); border-radius: var(--radius);
    border: 1.5px solid var(--border-soft); padding: 24px 16px;
    text-align: center; text-decoration: none; color: var(--text);
    transition: var(--transition); box-shadow: var(--shadow-sm);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.action-card:hover {
    border-color: var(--primary); box-shadow: var(--shadow);
    transform: translateY(-3px); text-decoration: none; color: var(--primary);
    background: var(--primary-light);
}
.action-card .action-icon { font-size: 32px; line-height: 1; }
.action-card .action-label { font-size: 12.5px; font-weight: 700; }

/* ---- Document Grid upgrade ---- */
.doc-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}
.doc-card {
    background: var(--card); border-radius: var(--radius);
    border: 1.5px solid var(--border-soft); padding: 18px 20px;
    box-shadow: var(--shadow-sm); transition: var(--transition);
    display: flex; flex-direction: column; gap: 12px;
}
.doc-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.doc-card-header { display: flex; align-items: flex-start; gap: 12px; }
.doc-card-icon {
    width: 44px; height: 44px; border-radius: var(--radius-sm); flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; font-size: 22px;
    background: var(--bg-soft);
}
.doc-card-meta { flex: 1; min-width: 0; }
.doc-card-meta h4 { font-size: 13.5px; margin: 0 0 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.doc-card-meta small { font-size: 11.5px; color: var(--muted); }
.doc-card-actions { display: flex; gap: 8px; padding-top: 10px; border-top: 1px solid var(--border-soft); }
.doc-card-actions .btn { flex: 1; font-size: 12px; padding: 6px 10px; }

/* ---- Export Cards upgrade ---- */
.export-option-card {
    background: var(--card); border-radius: var(--radius); border: 2px solid var(--border-soft);
    padding: 28px 24px; text-align: center; cursor: pointer;
    transition: var(--transition); box-shadow: var(--shadow-sm);
    text-decoration: none; color: var(--text); display: block;
}
.export-option-card:hover {
    border-color: var(--primary); box-shadow: var(--shadow);
    transform: translateY(-3px); text-decoration: none; color: var(--text);
}
.export-option-card .export-icon { font-size: 48px; display: block; margin-bottom: 14px; }
.export-option-card h3 { font-size: 15px; margin-bottom: 6px; }
.export-option-card p { font-size: 12.5px; color: var(--muted); margin: 0; line-height: 1.5; }

/* ---- Page Header upgrade ---- */
.page-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 24px; gap: 16px; flex-wrap: wrap;
}
.page-header h1 {
    font-size: 1.5rem; margin: 0;
    background: linear-gradient(135deg, var(--text), var(--primary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.page-header-actions { display: flex; gap: 10px; align-items: center; }

/* ---- Empty state ---- */
.empty-state {
    text-align: center; padding: 60px 24px; color: var(--muted);
}
.empty-state-icon { font-size: 56px; display: block; margin-bottom: 16px; filter: grayscale(1); opacity: .6; }
.empty-state h3 { color: var(--text-2); margin-bottom: 8px; }
.empty-state p { font-size: 13.5px; max-width: 360px; margin: 0 auto 20px; }

/* ---- Progress bar (for trial countdown) ---- */
.progress-bar { height: 6px; background: var(--border); border-radius: 999px; overflow: hidden; margin-top: 8px; }
.progress-bar-fill { height: 100%; border-radius: 999px; transition: width .6s ease; background: linear-gradient(90deg, var(--warning), #ef4444); }

/* ---- Responsive upgrades ---- */
@media (max-width: 900px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .quick-actions { grid-template-columns: repeat(2, 1fr); }
    .doc-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .quick-actions { grid-template-columns: repeat(2, 1fr); }
    .page-header h1 { font-size: 1.25rem; }
}

/* ===== DASHBOARD v5 — เมนู Grid + Welcome Banner ===== */
.welcome-banner {
    display: flex; align-items: center; gap: 20px;
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 50%, #1e3a8a 100%);
    border-radius: var(--radius-lg); padding: 28px 32px;
    color: #fff; margin-bottom: 24px;
    position: relative; overflow: hidden;
}
.welcome-banner::before {
    content:''; position:absolute; inset:0; pointer-events:none;
    background:radial-gradient(ellipse at 80% 50%,rgba(99,102,241,.3) 0%,transparent 60%);
}
.welcome-avatar {
    width: 64px; height: 64px; border-radius: 20px; flex-shrink: 0;
    background: linear-gradient(135deg,rgba(255,255,255,.25),rgba(255,255,255,.1));
    border: 2px solid rgba(255,255,255,.3); display: flex; align-items: center;
    justify-content: center; font-size: 28px; font-weight: 800; color: #fff;
}
.welcome-info { flex: 1; position: relative; z-index: 1; }
.welcome-greeting { font-size: 12px; color: rgba(255,255,255,.6); margin-bottom: 2px; font-weight: 500; }
.welcome-name { font-size: 1.6rem; font-weight: 800; margin: 0 0 4px; letter-spacing: -.01em; }
.welcome-email { font-size: 13px; color: rgba(255,255,255,.6); }
.welcome-badge { flex-shrink: 0; position: relative; z-index: 1; display: flex; align-items: center; gap: 8px; padding: 8px 18px; border-radius: 20px; font-size: 13px; font-weight: 600; }
.welcome-badge.trial { background: rgba(245,158,11,.25); border: 1px solid rgba(245,158,11,.4); color: #fde68a; }
.welcome-badge.active { background: rgba(16,185,129,.2); border: 1px solid rgba(16,185,129,.3); color: #a7f3d0; }

/* PA Progress Card */
.pa-progress-card {
    background: var(--card); border-radius: var(--radius); padding: 20px 24px;
    border: 1px solid var(--border-soft); box-shadow: var(--shadow-sm); margin-bottom: 20px;
}
.pa-progress-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.pa-progress-label { font-weight: 600; font-size: 14px; }
.pa-progress-pct { font-size: 1.5rem; font-weight: 800; color: #7c3aed; }
.pa-progress-sub { font-size: 12.5px; color: var(--muted); margin-top: 6px; }

/* Menu Grid */
.menu-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-top: 20px; }
.menu-card {
    background: var(--card); border-radius: var(--radius);
    border: 1.5px solid var(--border-soft); padding: 22px 16px 18px;
    text-align: center; text-decoration: none; color: var(--text);
    transition: var(--transition); box-shadow: var(--shadow-sm);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    position: relative; overflow: hidden;
}
.menu-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--mc, var(--primary)); border-radius: 2px 2px 0 0;
    transition: height .15s;
}
.menu-card:hover { border-color: var(--mc,var(--primary)); box-shadow: var(--shadow); transform: translateY(-3px); text-decoration: none; color: var(--text); }
.menu-card:hover::before { height: 5px; }
.menu-card-icon { width: 48px; height: 48px; border-radius: 14px; background: color-mix(in srgb, var(--mc, var(--primary)) 12%, #fff); display: flex; align-items: center; justify-content: center; font-size: 24px; }
.menu-card-title { font-size: 12.5px; font-weight: 700; line-height: 1.4; }
.menu-card-title small { font-weight: 400; color: var(--muted); display: block; }

/* Activity Filter Row */
.activity-filter-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.activity-filter-row select, .activity-filter-row input { border: 1.5px solid var(--border); border-radius: var(--radius-sm); padding: 9px 14px; font-family: var(--font); font-size: 13.5px; background: var(--card); color: var(--text); }
.activity-filter-row select:focus, .activity-filter-row input:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(79,70,229,.1); }

/* Activity Table */
.activity-table td { vertical-align: middle; }
.act-title { max-width: 280px; font-weight: 600; font-size: 13.5px; }
.badge-year { background: var(--primary-light); color: var(--primary-dk); border-radius: 8px; padding: 3px 10px; font-size: 12px; font-weight: 700; }

/* Page Banner (ฟอร์ม) */
.page-banner { display: flex; align-items: center; gap: 20px; background: linear-gradient(135deg,#312e81,#1e3a8a); border-radius: var(--radius); padding: 24px 28px; color: #fff; margin-bottom: 24px; }
.page-banner-icon { font-size: 36px; width: 60px; height: 60px; background: rgba(255,255,255,.15); border-radius: 16px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.page-banner h1 { font-size: 1.3rem; margin: 0 0 4px; color: #fff; -webkit-text-fill-color: #fff; }
.page-banner p { font-size: 13px; color: rgba(255,255,255,.7); margin: 0; }

/* Attach Grid (ฟอร์มอัปโหลด) */
.attach-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.attach-option { display: flex; flex-direction: column; gap: 10px; }
.attach-label { font-weight: 600; font-size: 13.5px; color: var(--text-2); }
.drive-url-input { border: 1.5px solid var(--border); border-radius: var(--radius-sm); padding: 11px 14px; font-size: 14px; font-family: var(--font); width: 100%; }
.drive-url-input:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(79,70,229,.1); }

/* Breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.breadcrumb a { color: var(--primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.req { color: var(--danger); }

/* Responsive */
@media (max-width: 900px) {
    .menu-grid { grid-template-columns: repeat(3,1fr); }
    .attach-grid { grid-template-columns: 1fr; }
    .welcome-banner { flex-wrap: wrap; }
}
@media (max-width: 600px) {
    .menu-grid { grid-template-columns: repeat(2,1fr); }
    .activity-filter-row { flex-direction: column; }
    .activity-filter-row select, .activity-filter-row input { width: 100%; }
}

/* ===================== RESPONSIVE — รองรับทุกแพลตฟอร์ม ===================== */

/* ---- Tablet (768px - 1024px) ---- */
@media (max-width: 1024px) and (min-width: 769px) {
    .menu-grid { grid-template-columns: repeat(3, 1fr); }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .quick-actions { grid-template-columns: repeat(3, 1fr); }
    .form-grid { grid-template-columns: 1fr; }
    .writer-layout { grid-template-columns: 1fr; }
    .table { font-size: 13px; }
    .table td, .table th { padding: 10px 12px; }
}

/* ---- Mobile (≤768px) ---- */
@media (max-width: 768px) {
    :root { --sidebar-w: 280px; }

    .app-main {
        padding: 16px;
        width: 100%;
        min-height: calc(100vh - 56px);
    }

    /* Topbar */
    .topbar { display: flex !important; }

    /* Sidebar */
    .sidebar {
        position: fixed; left: 0; top: 0;
        z-index: 200; height: 100vh;
        transform: translateX(-100%);
        transition: transform .25s cubic-bezier(.4,0,.2,1);
        box-shadow: none;
    }
    .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-xl); }
    .sidebar-overlay { display: none; position: fixed; inset: 0; z-index: 199; background: rgba(15,23,42,.5); backdrop-filter: blur(2px); }
    .sidebar-overlay.show { display: block; }

    /* Dashboard */
    .welcome-banner { flex-direction: column; align-items: flex-start; gap: 14px; padding: 20px; }
    .welcome-badge { align-self: flex-start; }
    .welcome-name { font-size: 1.3rem; }

    .menu-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .menu-card { padding: 16px 12px 14px; }
    .menu-card-icon { width: 40px; height: 40px; font-size: 20px; }
    .menu-card-title { font-size: 11.5px; }

    .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 16px; }
    .stat-card .stat-num { font-size: 1.6rem; }

    .quick-actions { grid-template-columns: repeat(2, 1fr); }
    .action-card { padding: 18px 10px; }

    /* Page header */
    .page-header { flex-direction: column; align-items: flex-start; }
    .page-header h1 { font-size: 1.2rem; }
    .page-header-actions { width: 100%; display: flex; gap: 8px; }
    .page-header-actions .btn { flex: 1; text-align: center; font-size: 13px; }

    /* Panel */
    .panel { padding: 16px; }
    .panel-head h2 { font-size: 14px; }

    /* Form */
    .form-grid { grid-template-columns: 1fr !important; }
    .form-field-full { grid-column: 1 !important; }
    .form-field input, .form-field select, .form-field textarea { font-size: 16px; } /* ป้องกัน zoom บน iOS */
    .form-actions { flex-wrap: wrap; }
    .form-actions .btn { flex: 1; min-width: 0; text-align: center; }

    /* Table */
    .table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .table { min-width: 600px; font-size: 12.5px; }
    .table td, .table th { padding: 8px 10px; white-space: nowrap; }

    /* Activity filter */
    .activity-filter-row { flex-direction: column; gap: 8px; }
    .activity-filter-row select,
    .activity-filter-row input { width: 100%; }

    /* Attach grid */
    .attach-grid { grid-template-columns: 1fr; }

    /* Writer */
    .writer-layout { grid-template-columns: 1fr; }

    /* Alerts */
    .alert { font-size: 13.5px; padding: 12px 16px; }

    /* Breadcrumb */
    .breadcrumb { font-size: 12px; flex-wrap: wrap; }

    /* PA Progress */
    .pa-progress-card { padding: 16px; }

    /* Template grid */
    .template-grid { grid-template-columns: 1fr !important; }

    /* Export options */
    .export-options { grid-template-columns: 1fr; }
}

/* ---- Small mobile (≤480px) ---- */
@media (max-width: 480px) {
    .menu-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .menu-card-title { font-size: 11px; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .login-card { padding: 24px 18px; }
    .login-logo h1 { font-size: 1.1rem; }
    .welcome-name { font-size: 1.2rem; }

    .page-header h1 { font-size: 1.1rem; }
    .page-banner { flex-direction: column; gap: 12px; }
    .page-banner h1 { font-size: 1.1rem; }

    /* hide some table columns on very small screens */
    .activity-table .hide-sm { display: none; }
}

/* ---- Large desktop (≥1440px) ---- */
@media (min-width: 1440px) {
    .app-main { max-width: 1200px; }
    .menu-grid { grid-template-columns: repeat(4, 1fr); }
    .stat-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ---- Print styles ---- */
@media print {
    .sidebar, .topbar, .no-print, .btn, .alert, .form-actions { display: none !important; }
    .app-main { padding: 0 !important; margin: 0 !important; }
    .app-layout { display: block; }
    body { background: white !important; color: black !important; font-size: 12pt; }
    .panel { box-shadow: none !important; border: 1px solid #ccc !important; break-inside: avoid; margin-bottom: 16px; }
    .pa-progress-card { break-inside: avoid; }
    @page { margin: 15mm; size: A4; }
}

/* ---- iOS safe area (notch/home indicator) ---- */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .sidebar-footer { padding-bottom: calc(14px + env(safe-area-inset-bottom)); }
    .app-main { padding-bottom: calc(20px + env(safe-area-inset-bottom)); }
}

/* ---- Touch improvements ---- */
@media (hover: none) and (pointer: coarse) {
    .sidebar nav a { padding: 12px 14px; min-height: 44px; }
    .btn { min-height: 44px; }
    .menu-card { min-height: 88px; }
    .color-swatch { width: 36px; height: 36px; }
    input[type="checkbox"] { width: 20px; height: 20px; }
    .upload-zone { min-height: 120px; }
    .table td, .table th { padding: 12px 10px; }
}

/* ===================== THEME-AWARE SIDEBAR ===================== */
.sidebar {
    background: var(--sidebar-bg, linear-gradient(160deg,#1e1b4b 0%,#312e81 60%,#1e3a8a 100%));
    transition: background .4s ease;
}
.sidebar::before { display: none; } /* ลบ overlay เดิม */
.sidebar-brand-icon {
    background: rgba(255,255,255,.2) !important;
    backdrop-filter: blur(8px);
    border: 1.5px solid rgba(255,255,255,.25);
    transition: background .3s;
}
.sidebar-avatar {
    background: var(--sidebar-primary, var(--primary)) !important;
    transition: background .3s;
}

/* Active menu item ใช้สีธีม */
.sidebar nav a.active {
    background: var(--sidebar-active-bg, rgba(255,255,255,.15)) !important;
    border-left: 3px solid var(--sidebar-primary, #fff) !important;
    color: #fff !important;
}
.sidebar nav a.active .nav-icon {
    filter: drop-shadow(0 0 4px var(--sidebar-primary, rgba(255,255,255,.5)));
}

/* ===================== BUTTON — LOADING STATE ===================== */
.btn-spinner {
    display: inline-block;
    width: 14px; height: 14px;
    border: 2px solid rgba(255,255,255,.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
    vertical-align: middle;
    margin-right: 4px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn-primary { background: linear-gradient(135deg, var(--btn-primary-bg,var(--primary)), var(--btn-primary-bg2,#6366f1)) !important; }
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 6px 20px color-mix(in srgb, var(--primary) 45%, transparent) !important; }

/* Alert animation */
.alert-animate { animation: alertSlideIn .3s ease; }
@keyframes alertSlideIn { from { opacity:0; transform:translateY(-10px); } to { opacity:1; transform:translateY(0); } }
.alert { transition: opacity .4s, transform .4s; }

/* Dismissible alert close */
.alert-dismissible { padding-right: 40px; position: relative; }

/* ===================== TOAST NOTIFICATION ===================== */
.toast {
    position: fixed; bottom: 28px; right: 24px; z-index: 9999;
    padding: 14px 20px; border-radius: 12px; font-size: 14px; font-weight: 600;
    box-shadow: 0 8px 28px rgba(0,0,0,.18); max-width: 320px;
    display: flex; align-items: center; gap: 10px;
    transform: translateY(20px); opacity: 0; transition: all .25s cubic-bezier(.34,1.56,.64,1);
    pointer-events: none;
}
.toast-in { transform: translateY(0); opacity: 1; pointer-events: auto; }
.toast-success { background: #065f46; color: #d1fae5; }
.toast-error   { background: #7f1d1d; color: #fee2e2; }
.toast-warning { background: #78350f; color: #fef3c7; }
.toast-info    { background: #1e3a8a; color: #dbeafe; }

/* ===================== CONFIRM DIALOG ===================== */
.confirm-overlay {
    position: fixed; inset: 0; z-index: 10000;
    background: rgba(15,23,42,.6); backdrop-filter: blur(4px);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity .2s;
}
.confirm-overlay.confirm-in { opacity: 1; }
.confirm-box {
    background: var(--card); border-radius: 16px;
    padding: 32px 28px; text-align: center; max-width: 360px; width: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,.2);
    transform: scale(.92); transition: transform .2s cubic-bezier(.34,1.56,.64,1);
}
.confirm-overlay.confirm-in .confirm-box { transform: scale(1); }
.confirm-icon { font-size: 48px; margin-bottom: 12px; line-height: 1; }
.confirm-box h3 { font-size: 18px; margin-bottom: 8px; color: var(--text); }
.confirm-box p  { font-size: 14px; color: var(--muted); margin-bottom: 24px; }
.confirm-actions { display: flex; gap: 12px; justify-content: center; }
.confirm-actions .btn { min-width: 100px; justify-content: center; }

/* ===================== BUTTON FOCUS/ACTIVE STATES ===================== */
.btn:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}
.btn-primary:active, .btn-success:active, .btn-danger:active {
    transform: scale(.97) !important;
    filter: brightness(.92) !important;
}
.btn:not(:disabled) { cursor: pointer; }
.btn:disabled { opacity: .5; cursor: not-allowed !important; pointer-events: none; }

/* ===================== FORM FEEDBACK ===================== */
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 15%, transparent);
}
.form-field input.is-valid   { border-color: var(--success); }
.form-field input.is-invalid { border-color: var(--danger); }

/* Upload zone drag-over */
.upload-zone { transition: all .2s; }
.upload-zone.drag-over {
    border-color: var(--primary) !important;
    background: var(--primary-light) !important;
    transform: scale(1.01);
}

/* ===================== TABLE ROW HOVER ===================== */
.table tbody tr { transition: background .12s; }
.table tbody tr:hover { background: var(--primary-light) !important; }
.table tbody tr td { transition: none; }


/* ============================================================
   RESPONSIVE — รองรับทุก platform (mobile/tablet/desktop)
   ============================================================ */

/* ── Fluid base ── */
*, *::before, *::after { box-sizing: border-box; }
img, video, iframe { max-width: 100%; height: auto; }
table { width: 100%; }

/* ── App layout: sidebar collapse on mobile ── */
@media (max-width: 768px) {
    .app-layout { flex-direction: column; }

    /* Sidebar → hidden drawer by default */
    .app-sidebar {
        position: fixed; inset: 0; z-index: 300;
        transform: translateX(-100%);
        transition: transform .25s ease;
        width: min(280px, 85vw) !important;
        height: 100dvh;
        overflow-y: auto;
    }
    .app-sidebar.open { transform: translateX(0); }
    .sidebar-overlay {
        display: none; position: fixed; inset: 0;
        background: rgba(0,0,0,.45); z-index: 299;
    }
    .sidebar-overlay.show { display: block; }

    /* Main expands full width */
    .app-main { margin-left: 0 !important; width: 100% !important; padding: 12px !important; }

    /* Topbar hamburger */
    .topbar { display: flex !important; }
    .hamburger { display: flex !important; }
}

/* ── Topbar hamburger button ── */
.hamburger {
    display: none; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 8px;
    background: none; border: 1.5px solid var(--border);
    cursor: pointer; flex-shrink: 0;
    flex-direction: column; gap: 5px; padding: 8px;
}
.hamburger span {
    display: block; width: 18px; height: 2px;
    background: var(--text); border-radius: 2px;
    transition: all .2s;
}

/* ── Grid responsive ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) {
    .form-grid { grid-template-columns: 1fr; }
    .form-field-full { grid-column: 1 !important; }
}

/* ── Table responsive ── */
@media (max-width: 768px) {
    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .table { min-width: 600px; }
    .table th, .table td { padding: 8px 10px; font-size: 12.5px; }
}

/* ── Panel & card responsive ── */
@media (max-width: 640px) {
    .panel { border-radius: 12px; padding: 14px !important; }
    .panel-head { padding: 12px 14px !important; }
    .stat-grid { grid-template-columns: repeat(2,1fr) !important; }
    .page-header { flex-wrap: wrap; gap: 8px; }
    .page-header h1 { font-size: 1.15rem !important; }
    .page-header-actions { flex-wrap: wrap; gap: 6px; }
}

/* ── Buttons responsive ── */
@media (max-width: 480px) {
    .btn { padding: 8px 14px; font-size: 13px; }
    .btn-full { width: 100%; }
    .form-actions { flex-wrap: wrap; gap: 8px; }
    .form-actions .btn { flex: 1; min-width: 120px; }
}

/* ── Login / Register card ── */
@media (max-width: 480px) {
    .login-card, .register-card {
        margin: 10px !important; padding: 24px 18px !important;
        border-radius: 16px !important;
    }
    .login-wrap { padding: 12px !important; align-items: flex-start !important; padding-top: 40px !important; }
}

/* ── Portfolio public ── */
@media (max-width: 768px) {
    .wm-wrap { grid-template-columns: 1fr !important; padding: 16px 14px 60px !important; }
    .wm-hero-content { padding: 20px 16px !important; flex-wrap: wrap; }
    .wm-avatar { width: 80px !important; height: 80px !important; font-size: 28px !important; }
    .wm-hero-name { font-size: 1.5rem !important; }
    .wm-hero-tags { gap: 5px !important; }
    .wm-act-grid { grid-template-columns: 1fr !important; }
    .wm-inno-grid { grid-template-columns: repeat(2,1fr) !important; }
    .wm-photo-grid { columns: 2 !important; }
    .wm-nav { overflow-x: auto; }
    .wm-nav-item { padding: 12px 14px !important; font-size: 12.5px !important; }
}
@media (max-width: 480px) {
    .wm-inno-grid { grid-template-columns: 1fr !important; }
    .wm-photo-grid { columns: 2 !important; }
    .wm-hero { min-height: 260px !important; }
}

/* ── Admin tables ── */
@media (max-width: 1024px) {
    .admin-table-wrap { overflow-x: auto; }
}

/* ── Touch targets ── */
@media (hover: none) and (pointer: coarse) {
    .btn { min-height: 44px; }
    input, select, textarea { min-height: 44px; font-size: 16px !important; }
    .nav-item, .wm-nav-item { min-height: 48px; }
}

/* ── Tablet (769px-1024px) ── */
@media (min-width: 769px) and (max-width: 1024px) {
    .app-sidebar { width: 220px !important; }
    .stat-grid { grid-template-columns: repeat(2,1fr) !important; }
    .wm-wrap { grid-template-columns: 240px 1fr !important; }
}

/* ── Large screens (≥1440px) ── */
@media (min-width: 1440px) {
    .app-main { max-width: 1400px; }
    .wm-wrap { max-width: 1320px !important; }
}

/* ── Safe area (notch phones) ── */
@supports (padding: max(0px)) {
    .app-sidebar { padding-bottom: max(16px, env(safe-area-inset-bottom)); }
    .app-main { padding-bottom: max(16px, env(safe-area-inset-bottom)); }
    body.page-login .login-wrap { padding-bottom: max(20px, env(safe-area-inset-bottom)); }
}

/* ── Print ── */
@media print {
    .app-sidebar, .topbar, .hamburger, .sidebar-overlay, .btn, form { display: none !important; }
    .app-main { margin: 0 !important; padding: 0 !important; }
}

/* ── Fix: sidebar class is .sidebar not .app-sidebar ── */
@media (max-width: 768px) {
    .sidebar {
        position: fixed; top: 0; left: 0; bottom: 0;
        z-index: 300;
        transform: translateX(-100%);
        transition: transform .25s ease;
        width: min(280px, 85vw) !important;
        overflow-y: auto;
        height: 100dvh;
    }
    .sidebar.open { transform: translateX(0) !important; }
    .app-main, main.app-main { margin-left: 0 !important; width: 100% !important; padding: 14px !important; }
}

/* ================================================================
   GLOBAL RESPONSIVE — รองรับทุก platform (เพิ่มเติมจากของเดิม)
   ================================================================ */

/* ── ป้องกัน content ล้น sidebar ── */
*, *::before, *::after { box-sizing: border-box; }
body { overflow-x: hidden; }
img, video, iframe, table { max-width: 100%; }

/* ── Mobile ≤768px ── */
@media (max-width: 768px) {
    .app-main {
        padding: 16px 14px !important;
        max-width: 100vw !important;
    }
    .panel { padding: 14px !important; border-radius: 12px; }
    .panel-head { padding: 12px 14px !important; }
    .page-header { flex-wrap: wrap; gap: 8px; }
    .page-header h1 { font-size: 1.15rem !important; }
    .page-header-actions { flex-wrap: wrap; gap: 6px; }
    .revenue-grid,
    .stat-grid { grid-template-columns: repeat(2,1fr) !important; gap: 10px !important; }
    .form-grid { grid-template-columns: 1fr !important; }
    .form-field-full { grid-column: 1 !important; }
    /* table scroll */
    .table-wrap, .panel > .table, main .table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    /* pending cards */
    .pending-card > div { flex-wrap: wrap !important; }
    /* admin users table */
    table { min-width: 580px; }
    .tab-bar { overflow-x: auto; scrollbar-width: none; }
    .tab-bar::-webkit-scrollbar { display: none; }
}

/* ── Small mobile ≤480px ── */
@media (max-width: 480px) {
    .app-main { padding: 12px 10px !important; }
    .btn { padding: 8px 12px; font-size: 13px; }
    .btn-full { width: 100%; }
    .form-actions { flex-wrap: wrap; gap: 8px; }
    .form-actions .btn { flex: 1; min-width: 110px; }
    .login-card, .register-card { margin: 10px !important; padding: 22px 16px !important; border-radius: 16px !important; }
    /* revenue 1 col */
    .revenue-grid { grid-template-columns: 1fr 1fr !important; }
}

/* ── Tablet 769-1024px ── */
@media (min-width: 769px) and (max-width: 1024px) {
    .app-main { padding: 24px 28px; }
    .revenue-grid { grid-template-columns: repeat(2,1fr) !important; }
    .stat-grid { grid-template-columns: repeat(2,1fr); }
}

/* ── Touch targets (มือถือทุกรุ่น) ── */
@media (hover: none) and (pointer: coarse) {
    .btn, button:not([style*="display:none"]) { min-height: 42px; }
    input, select, textarea { min-height: 42px; font-size: 16px !important; }
    .nav-item { min-height: 46px; }
    .slip-thumb { width: 80px !important; height: 80px !important; }
}

/* ── notch / safe area ── */
@supports (padding: max(0px)) {
    .sidebar { padding-bottom: max(12px, env(safe-area-inset-bottom)); }
    .app-main { padding-bottom: max(16px, env(safe-area-inset-bottom)); }
    .topbar { padding-left: max(18px, env(safe-area-inset-left)); }
}

/* ── portfolio.php teacher ── */
@media (max-width: 900px) {
    .app-main[style*="max-width:960px"] { max-width: 100% !important; }
}

/* ── ป้องกัน text overflow ทุกที่ ── */
.panel, .card, .pending-card { word-break: break-word; }
td, th { word-break: break-word; }