/* ============================================================
   naucme.cz — Shared CSS
   Dark theme, sidebar layout, Outfit font
   ============================================================ */

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; }
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }

/* ── CSS VARIABLES ── */
:root {
    --sidebar-w:    260px;
    --sidebar-coll: 64px;
    --header-h:     60px;

    /* Brand palette */
    --indigo:       #6366f1;
    --indigo2:      #4f46e5;
    --indigo-glow:  rgba(99,102,241,0.3);
    --emerald:      #10b981;
    --emerald2:     #059669;
    --amber:        #f59e0b;
    --danger:       #ef4444;
    --danger2:      #dc2626;

    /* Surface (dark) */
    --surface:      #0f172a;
    --surface2:     #1e293b;
    --surface3:     #243040;
    --sidebar-bg:   #0d1526;

    /* Text */
    --text:         #f8fafc;
    --text-muted:   #94a3b8;
    --text-dim:     rgba(248,250,252,0.35);

    /* Borders / Glass */
    --border:       rgba(255,255,255,0.08);
    --border-med:   rgba(255,255,255,0.13);
    --card:         rgba(255,255,255,0.04);
    --card-hover:   rgba(255,255,255,0.07);

    /* Shadows */
    --shadow-sm:    0 2px 8px rgba(0,0,0,0.35);
    --shadow:       0 4px 20px rgba(0,0,0,0.45);
    --shadow-lg:    0 8px 40px rgba(0,0,0,0.55);

    /* Radius */
    --r-sm:   6px;
    --r:      10px;
    --r-lg:   14px;
    --r-xl:   18px;

    /* Transition */
    --ease:   0.18s ease;
}

/* ── BASE ── */
html, body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--surface);
    color: var(--text);
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.5;
    overflow-x: hidden;
}

/* ── LAYOUT ── */
.layout {
    display: flex;
    min-height: 100vh;
}

.main {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    transition: margin-left var(--ease);
}

.layout.collapsed .main { margin-left: var(--sidebar-coll); }

/* ── SIDEBAR ── */
.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--sidebar-w);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 200;
    transition: width var(--ease);
    overflow: hidden;
}

.layout.collapsed .sidebar { width: var(--sidebar-coll); }

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 16px;
    height: var(--header-h);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.sidebar-logo-icon {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, var(--indigo), #8b5cf6);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}

.sidebar-logo-text {
    font-size: 16px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.5px;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity var(--ease), width var(--ease);
}

.sidebar-toggle {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 4px;
    display: flex;
    align-items: center;
    border-radius: var(--r-sm);
    flex-shrink: 0;
    transition: color var(--ease);
}
.sidebar-toggle:hover { color: var(--text); }

.layout.collapsed .sidebar-logo-text,
.layout.collapsed .sidebar-toggle { opacity: 0; width: 0; }

.sidebar-nav {
    padding: 12px 8px;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 10px;
    border-radius: var(--r);
    color: var(--text-muted);
    transition: all var(--ease);
    white-space: nowrap;
    position: relative;
}

.nav-item:hover { color: var(--text); background: var(--card-hover); }
.nav-item.active {
    color: var(--indigo);
    background: rgba(99,102,241,0.12);
    font-weight: 600;
}

.nav-icon { display: flex; align-items: center; flex-shrink: 0; }
.nav-label {
    font-size: 14px;
    overflow: hidden;
    transition: opacity var(--ease), width var(--ease);
}

.layout.collapsed .nav-label { opacity: 0; width: 0; overflow: hidden; }

.sidebar-footer {
    padding: 12px 8px;
    border-top: 1px solid var(--border);
}

/* Tooltip pro collapsed sidebar */
.layout.collapsed .nav-item::after {
    content: attr(data-label);
    position: absolute;
    left: calc(var(--sidebar-coll) - 4px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--surface3);
    color: var(--text);
    font-size: 13px;
    padding: 6px 10px;
    border-radius: var(--r);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    border: 1px solid var(--border-med);
    box-shadow: var(--shadow);
    z-index: 300;
    transition: opacity 0.1s;
}
.layout.collapsed .nav-item:hover::after { opacity: 1; }

/* ── TOPBAR ── */
.topbar {
    height: var(--header-h);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky;
    top: 0;
    background: var(--surface);
    z-index: 100;
    flex-shrink: 0;
}

.topbar-title {
    font-size: 18px;
    font-weight: 700;
    flex: 1;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.plan-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.plan-badge.free { background: rgba(148,163,184,0.15); color: var(--text-muted); }
.plan-badge.teacher { background: rgba(99,102,241,0.15); color: var(--indigo); }
.plan-badge.school { background: rgba(16,185,129,0.15); color: var(--emerald); }

/* ── PAGE CONTENT ── */
.page-content {
    padding: 28px 24px;
    flex: 1;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-title {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

/* ── CARDS ── */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 20px;
}

.card-hover {
    transition: background var(--ease), border-color var(--ease), transform 0.15s;
}
.card-hover:hover {
    background: var(--card-hover);
    border-color: var(--border-med);
    transform: translateY(-1px);
}

/* ── BUTTONS ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 0.65rem 1.2rem;
    border-radius: var(--r-lg);
    font-size: 14px;
    font-weight: 600;
    border: none;
    transition: all var(--ease);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--indigo), #8b5cf6);
    color: #fff;
    box-shadow: 0 4px 15px var(--indigo-glow);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99,102,241,0.45);
}

.btn-secondary {
    background: var(--card);
    color: var(--text-muted);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--card-hover); color: var(--text); }

.btn-success {
    background: rgba(16,185,129,0.15);
    color: var(--emerald);
    border: 1px solid rgba(16,185,129,0.25);
}
.btn-success:hover { background: rgba(16,185,129,0.25); }

.btn-danger {
    background: rgba(239,68,68,0.12);
    color: var(--danger);
    border: 1px solid rgba(239,68,68,0.2);
}
.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-ghost {
    background: none;
    color: var(--text-muted);
    border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--text); background: var(--card); }

.btn-sm { padding: 0.4rem 0.85rem; font-size: 13px; }
.btn-icon { padding: 0.6rem; }

.btn-generate {
    width: 100%;
    justify-content: center;
    padding: 0.9rem 1.5rem;
    font-size: 16px;
    background: linear-gradient(135deg, var(--indigo), #8b5cf6);
    color: #fff;
    border: none;
    border-radius: var(--r-lg);
    font-weight: 700;
    box-shadow: 0 4px 20px var(--indigo-glow);
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
}
.btn-generate:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(99,102,241,0.5); }
.btn-generate:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }
.btn-generate.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 1.5s infinite;
}
@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ── FORMS ── */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control,
.form-select,
.form-textarea {
    width: 100%;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--r);
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    padding: 10px 12px;
    transition: border-color var(--ease);
    outline: none;
}
.form-control::placeholder { color: var(--text-dim); }
.form-control:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }
.form-textarea { resize: vertical; min-height: 80px; line-height: 1.6; }

.form-range {
    width: 100%;
    accent-color: var(--indigo);
}

/* Radio cards (type selector) */
.type-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.type-card input[type=radio] { display: none; }

.type-card label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r);
    cursor: pointer;
    text-align: center;
    transition: all var(--ease);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
}
.type-card label:hover { border-color: var(--border-med); color: var(--text); background: var(--card-hover); }
.type-card label .type-emoji { font-size: 22px; }

.type-card input[type=radio]:checked + label {
    border-color: var(--indigo);
    background: rgba(99,102,241,0.12);
    color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

/* Checkboxes */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.checkbox-pill input[type=checkbox] { display: none; }
.checkbox-pill label {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: all var(--ease);
    color: var(--text-muted);
}
.checkbox-pill label:hover { border-color: var(--border-med); color: var(--text); }
.checkbox-pill input:checked + label {
    background: rgba(99,102,241,0.12);
    border-color: var(--indigo);
    color: var(--indigo);
}

/* Toggle */
.toggle-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
}
.toggle {
    position: relative;
    width: 42px;
    height: 24px;
    flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--surface3);
    border: 1px solid var(--border);
    border-radius: 24px;
    transition: all var(--ease);
    cursor: pointer;
}
.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 2px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--text-muted);
    border-radius: 50%;
    transition: all var(--ease);
}
.toggle input:checked + .toggle-slider { background: var(--indigo); border-color: var(--indigo); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px) translateY(-50%); background: #fff; }

/* Range slider */
.range-with-labels {
    display: flex;
    align-items: center;
    gap: 10px;
}
.range-value {
    min-width: 32px;
    text-align: center;
    font-weight: 700;
    color: var(--indigo);
}

/* ── GENERATOR PAGE ── */
.generator-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 20px;
    height: calc(100vh - var(--header-h) - 56px);
    min-height: 600px;
}

.gen-panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.gen-panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    font-weight: 700;
    font-size: 15px;
}

.gen-panel-body {
    padding: 16px 20px;
    overflow-y: auto;
    flex: 1;
}

/* Output panel */
.gen-output-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-dim);
    text-align: center;
    gap: 16px;
    padding: 40px;
}
.gen-output-empty .empty-icon { font-size: 64px; line-height: 1; }
.gen-output-empty p { font-size: 15px; }

.gen-output-content {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
    display: none;
}

.gen-output-text {
    line-height: 1.8;
    font-size: 14px;
}
.gen-output-text h1 { font-size: 18px; margin: 20px 0 10px; color: var(--text); }
.gen-output-text h2 { font-size: 16px; margin: 18px 0 8px; color: var(--indigo); border-left: 3px solid var(--indigo); padding-left: 10px; }
.gen-output-text h3 { font-size: 14px; margin: 12px 0 6px; font-weight: 700; }
.gen-output-text p { margin: 8px 0; }
.gen-output-text ul, .gen-output-text ol { margin: 8px 0 8px 20px; }
.gen-output-text li { margin: 4px 0; }
.gen-output-text strong { color: var(--text); }

.gen-output-text[contenteditable="true"] {
    outline: none;
    background: rgba(99,102,241,0.03);
    border-radius: var(--r);
    padding: 12px;
    border: 1px dashed rgba(99,102,241,0.3);
}

.gen-actions {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.gen-tip {
    margin: 0 20px 16px;
    background: rgba(245,158,11,0.08);
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: var(--r);
    padding: 10px 14px;
    font-size: 13px;
    color: var(--amber);
    display: none;
}

/* Loading skeleton */
.skeleton {
    display: none;
    padding: 20px;
    flex-direction: column;
    gap: 12px;
}
.skeleton.active { display: flex; }
.skel-line {
    height: 14px;
    background: linear-gradient(90deg, var(--surface2) 25%, var(--surface3) 50%, var(--surface2) 75%);
    background-size: 200% 100%;
    border-radius: 6px;
    animation: skeletonAnim 1.5s infinite;
}
@keyframes skeletonAnim {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ── LIBRARY ── */
.lib-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    align-items: center;
}

.lib-search {
    flex: 1;
    min-width: 200px;
    position: relative;
}
.lib-search input { padding-left: 36px; }
.lib-search .search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    pointer-events: none;
}

.mat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.mat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: all var(--ease);
}
.mat-card:hover {
    border-color: var(--border-med);
    background: var(--card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.mat-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
}

.mat-type-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(99,102,241,0.12);
    color: var(--indigo);
}

.mat-card-title {
    font-size: 14px;
    font-weight: 700;
    line-height: 1.4;
    flex: 1;
}

.mat-card-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.mat-card-actions {
    display: flex;
    gap: 6px;
    margin-top: auto;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

/* ── DASHBOARD ── */
.dash-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.stat-icon.indigo { background: rgba(99,102,241,0.15); color: var(--indigo); }
.stat-icon.emerald { background: rgba(16,185,129,0.15); color: var(--emerald); }
.stat-icon.amber { background: rgba(245,158,11,0.15); color: var(--amber); }
.stat-icon.purple { background: rgba(139,92,246,0.15); color: #8b5cf6; }

.stat-value {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.dash-quickstart {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 28px;
}

.qs-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: all var(--ease);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
}
.qs-card:hover {
    border-color: var(--indigo);
    background: rgba(99,102,241,0.08);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99,102,241,0.15);
}
.qs-emoji { font-size: 32px; }
.qs-title { font-size: 13px; font-weight: 700; }

/* Limit bar */
.limit-bar-wrap {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 12px 16px;
    margin-bottom: 20px;
}
.limit-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.limit-bar-track {
    height: 6px;
    background: var(--surface3);
    border-radius: 3px;
    overflow: hidden;
}
.limit-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--indigo), #8b5cf6);
    border-radius: 3px;
    transition: width 0.5s ease;
}
.limit-bar-fill.warning { background: linear-gradient(90deg, var(--amber), #f97316); }
.limit-bar-fill.danger { background: linear-gradient(90deg, var(--danger), #f97316); }

/* ── SETTINGS ── */
.settings-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.settings-tab {
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
    transition: all var(--ease);
    display: flex;
    align-items: center;
    gap: 7px;
}
.settings-tab:hover { color: var(--text); }
.settings-tab.active { color: var(--indigo); border-bottom-color: var(--indigo); }

.settings-section { display: none; }
.settings-section.active { display: block; }

/* ── ALERTS / BANNERS ── */
.alert {
    padding: 12px 16px;
    border-radius: var(--r);
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 16px;
}
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.25); color: var(--amber); }
.alert-info    { background: rgba(99,102,241,0.1); border: 1px solid rgba(99,102,241,0.25); color: #a5b4fc; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.25); color: var(--emerald); }
.alert-danger  { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.25); color: var(--danger); }

/* ── MODAL ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    padding: 16px;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }

.modal {
    background: var(--surface2);
    border: 1px solid var(--border-med);
    border-radius: var(--r-xl);
    width: 100%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform 0.25s;
}
.modal-overlay.open .modal { transform: translateY(0); }

.modal-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-title { font-size: 17px; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); padding: 4px; border-radius: var(--r-sm); transition: color var(--ease); }
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

/* ── TOAST ── */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--surface2);
    border: 1px solid var(--border-med);
    border-radius: var(--r-lg);
    padding: 12px 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow);
    animation: toastIn 0.3s ease;
    max-width: 360px;
    min-width: 200px;
}
.toast.success { border-left: 3px solid var(--emerald); }
.toast.error   { border-left: 3px solid var(--danger); }
.toast.info    { border-left: 3px solid var(--indigo); }
.toast.warning { border-left: 3px solid var(--amber); }

@keyframes toastIn {
    from { transform: translateX(100%); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}
@keyframes toastOut {
    from { transform: translateX(0); opacity: 1; }
    to   { transform: translateX(100%); opacity: 0; }
}

/* ── EMPTY STATE ── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state .empty-emoji { font-size: 48px; margin-bottom: 16px; }
.empty-state h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.empty-state p { font-size: 14px; margin-bottom: 20px; }

/* ── UPGRADE MODAL ── */
.upgrade-highlight {
    background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(139,92,246,0.15));
    border: 1px solid rgba(99,102,241,0.3);
    border-radius: var(--r-lg);
    padding: 24px;
    text-align: center;
    margin-bottom: 16px;
}
.upgrade-price {
    font-size: 36px;
    font-weight: 800;
    color: var(--indigo);
    letter-spacing: -1px;
}
.upgrade-price span { font-size: 16px; font-weight: 500; color: var(--text-muted); }
.upgrade-features { list-style: none; text-align: left; margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.upgrade-features li { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.upgrade-features li::before { content: '✓'; color: var(--emerald); font-weight: 700; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
    .dash-quickstart { grid-template-columns: repeat(2, 1fr); }
    .generator-layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; height: auto; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.mobile-open { transform: translateX(0); }
    .main { margin-left: 0 !important; }
    .layout.collapsed .main { margin-left: 0; }
    .page-content { padding: 16px; }
    .dash-quickstart { grid-template-columns: repeat(2, 1fr); }
    .dash-stats { grid-template-columns: repeat(2, 1fr); }
    .mat-grid { grid-template-columns: 1fr; }
    .type-cards { grid-template-columns: repeat(4, 1fr); }
}