/* ============================================================
   Posthum.ai — main.css : Layout SPA, Sidebar, Topbar, Avatar
   Design system : dark luxury, tokens définis dans app.css
   ============================================================ */

/* ── Variables SPA ────────────────────────────────────────────────────────── */
:root {
    --bg-dark: #0a0a0a;
    --bg-card: #111827;
    --bg-input: #1e293b;
    --border: rgba(255, 255, 255, 0.08);
    --gold: #c9a96e;
    --gold-light: #e8c98a;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #475569;
    --danger: #ef4444;
    --success: #22c55e;

    --sidebar-width: 260px;
    --sidebar-width-collapsed: 64px;
    --topbar-height: 56px;
    --sidebar-transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --wrapper-transition: margin-left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset SPA body ───────────────────────────────────────────────────────── */
body.app-layout {
    display: flex;
    min-height: 100vh;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* ── Overlay mobile ───────────────────────────────────────────────────────── */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    backdrop-filter: blur(2px);
}

.sidebar-overlay.visible {
    display: block;
}

/* ══════════════════════════════════════════════════════════════════════════
   SIDEBAR
   ══════════════════════════════════════════════════════════════════════════ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: #0d1117;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: var(--sidebar-transition);
    overflow: hidden;
}

/* État réduit */
.sidebar.collapsed {
    width: var(--sidebar-width-collapsed);
}

/* ── Sidebar header ── */
.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    overflow: hidden;
}

.sidebar-logo {
    display: flex;
    align-items: baseline;
    gap: 0;
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
}

.logo-serif {
    font-family: var(--font-display, "Cormorant Garamond", Georgia, serif);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.logo-ai {
    font-family: var(--font-display, "Cormorant Garamond", Georgia, serif);
    font-size: 1.25rem;
    color: var(--gold);
}

/* Logo masqué en mode réduit */
.sidebar.collapsed .sidebar-logo {
    opacity: 0;
    pointer-events: none;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.35rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition:
        color 0.2s,
        background 0.2s;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

.sidebar-toggle svg {
    transition: transform 0.25s ease;
}

.sidebar.collapsed .sidebar-toggle svg {
    transform: rotate(180deg);
}

/* ── Nav ── */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.375rem 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0;
}

.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

/* Section dividers (legacy, kept for compat) */
.nav-section-divider {
    display: none;
}

/* ── Nav groups (sections collapsibles) ── */
.nav-group-toggle {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.3rem 0.75rem;
    margin: 0.35rem 0.5rem 0.1rem;
    border-radius: 6px;
    width: calc(100% - 1rem);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    white-space: nowrap;
    overflow: hidden;
    transition:
        color 0.15s,
        background 0.15s;
    font-family: inherit;
    text-align: left;
    position: relative;
}

.nav-group-toggle:hover {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
}

.nav-group-toggle .nav-icon {
    opacity: 0.55;
    flex-shrink: 0;
}

.nav-group-toggle:hover .nav-icon {
    opacity: 0.8;
}

.nav-group-chevron {
    margin-left: auto;
    flex-shrink: 0;
    opacity: 0.4;
    transition:
        transform 0.22s ease,
        opacity 0.15s;
}

.nav-group:not(.open) .nav-group-chevron {
    transform: rotate(-90deg);
}

/* Items container */
.nav-group-items {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.28s ease;
}

.nav-group.open .nav-group-items {
    max-height: 400px;
}

/* Hover ouvre aussi le groupe (peek) — désactivé pour compat mobile */
/* .nav-group:not(.open):hover .nav-group-items { max-height: 400px; } */

/* Sous-items : légère indentation */
.nav-item.nav-sub {
    padding-left: 1.25rem;
    font-size: 0.8rem;
}

/* ── Collapsed sidebar : gestion des groupes ── */
.sidebar.collapsed .nav-group-toggle {
    justify-content: center;
    padding: 0.3rem 0.75rem;
    margin: 0.1rem 0.5rem;
}

.sidebar.collapsed .nav-group-toggle .nav-label,
.sidebar.collapsed .nav-group-chevron {
    opacity: 0;
    max-width: 0;
    overflow: hidden;
}

/* Collapsed : les sous-items s'affichent toujours (icônes directes) */
.sidebar.collapsed .nav-group-items {
    max-height: 400px !important;
}

/* Tooltip pour le toggle de groupe en mode collapsed */
.sidebar.collapsed .nav-group-toggle::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(var(--sidebar-width-collapsed) + 8px);
    top: 50%;
    transform: translateY(-50%);
    background: #1e293b;
    color: var(--text-primary);
    font-size: 0.8rem;
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 200;
    border: 1px solid var(--border);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    text-transform: none;
    font-weight: 400;
    letter-spacing: 0;
}

.sidebar.collapsed .nav-group-toggle:hover::after {
    opacity: 1;
}

/* Nav section title (legacy) */
.nav-section-title {
    display: none;
}

/* Nav items */
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.4rem 0.75rem;
    margin: 0.1rem 0.5rem;
    border-radius: 6px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 400;
    white-space: nowrap;
    overflow: hidden;
    line-height: 1.2;
    transition:
        background 0.15s ease,
        color 0.15s ease;
    position: relative;
    cursor: pointer;
}

.nav-item:hover {
    background: rgba(201, 169, 110, 0.08);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(201, 169, 110, 0.12);
    color: var(--gold);
}

.nav-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    opacity: 0.8;
}

.nav-item:hover .nav-icon,
.nav-item.active .nav-icon {
    opacity: 1;
}

.nav-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    transition:
        opacity 0.2s,
        max-width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Badge bêta */
.badge-beta {
    margin-left: auto;
    font-size: 0.55rem;
    padding: 0.1rem 0.3rem;
    background: rgba(201, 169, 110, 0.12);
    color: var(--gold);
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    flex-shrink: 0;
    transition: opacity 0.2s;
}

.sidebar.collapsed .badge-beta {
    opacity: 0;
}

/* Badge nouveau */
.badge-new {
    margin-left: auto;
    font-size: 0.55rem;
    padding: 0.1rem 0.3rem;
    background: rgba(99, 179, 237, 0.15);
    color: #63b3ed;
    border-radius: 3px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 600;
    flex-shrink: 0;
    transition: opacity 0.2s;
}

.sidebar.collapsed .badge-new {
    opacity: 0;
}

/* Tooltip au survol en mode réduit */
.sidebar.collapsed .nav-item::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(var(--sidebar-width-collapsed) + 8px);
    top: 50%;
    transform: translateY(-50%);
    background: #1e293b;
    color: var(--text-primary);
    font-size: 0.8rem;
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 200;
    border: 1px solid var(--border);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.sidebar.collapsed .nav-item:hover::after {
    opacity: 1;
}

/* ── Sidebar footer ── */
.sidebar-footer {
    padding: 0.625rem 1rem;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    overflow: hidden;
}

.sidebar-version {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-mono, "DM Mono", monospace);
    opacity: 0.6;
    white-space: nowrap;
    transition: opacity 0.2s;
}

.sidebar.collapsed .sidebar-version {
    opacity: 0;
}

/* ══════════════════════════════════════════════════════════════════════════
   MAIN WRAPPER
   ══════════════════════════════════════════════════════════════════════════ */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-left: var(--sidebar-width);
    transition: var(--wrapper-transition);
    min-height: 100vh;
}

body.app-layout[data-sidebar="collapsed"] .main-wrapper {
    margin-left: var(--sidebar-width-collapsed);
}

/* Synchronisation via classe aussi (pour JS) */
.sidebar.collapsed~.main-wrapper {
    margin-left: var(--sidebar-width-collapsed);
}

/* ══════════════════════════════════════════════════════════════════════════
   TOPBAR
   ══════════════════════════════════════════════════════════════════════════ */
.topbar {
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(17, 24, 39, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.topbar-hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.35rem;
    border-radius: 6px;
    margin-right: 0.75rem;
    transition: color 0.15s;
}

.topbar-hamburger:hover {
    color: var(--text-primary);
}

.topbar-spacer {
    flex: 1;
}

/* ── Avatar & dropdown ── */
.user-menu {
    position: relative;
}

.avatar-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    border-radius: 50%;
    transition: box-shadow 0.2s;
}

.avatar-btn:hover .avatar-circle,
.avatar-btn[aria-expanded="true"] .avatar-circle {
    box-shadow: 0 0 0 2px var(--gold);
}

.avatar-circle {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.2s;
}

.avatar-initials {
    font-size: 0.6875rem;
    font-weight: 700;
    color: #0a0a0a;
    letter-spacing: 0.03em;
    line-height: 1;
    user-select: none;
    font-family: var(--font-body, "Outfit", sans-serif);
}

/* Dropdown */
.user-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 230px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
    z-index: 300;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-6px) scale(0.98);
    pointer-events: none;
    transition:
        opacity 0.18s ease,
        transform 0.18s ease;
}

.user-dropdown.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.user-dropdown[hidden]:not(.open) {
    display: none;
}

.dropdown-user-info {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.875rem 1rem;
}

.dropdown-avatar-sm {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.625rem;
    font-weight: 700;
    color: #0a0a0a;
}

.dropdown-user-text {
    min-width: 0;
}

.dropdown-name {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dropdown-email {
    font-size: 0.6875rem;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-top: 0.1rem;
}

.dropdown-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5625rem 1rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    transition:
        background 0.12s ease,
        color 0.12s ease;
    font-family: inherit;
}

.dropdown-item:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.dropdown-item--danger {
    color: var(--danger);
}

.dropdown-item--danger:hover {
    background: rgba(239, 68, 68, 0.08);
    color: #f87171;
}

.dropdown-icon {
    flex-shrink: 0;
    opacity: 0.7;
}

.dropdown-item:hover .dropdown-icon {
    opacity: 1;
}

/* ══════════════════════════════════════════════════════════════════════════
   PAGE CONTENT
   ══════════════════════════════════════════════════════════════════════════ */
.page-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

/* Page loader */
.page-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
}

.loader-ring {
    width: 36px;
    height: 36px;
    border: 2px solid rgba(201, 169, 110, 0.2);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ── Page components ── */
.page-header {
    margin-bottom: 1.75rem;
}

.page-header h1 {
    font-family: var(--font-display, "Cormorant Garamond", Georgia, serif);
    font-size: 1.75rem;
    font-weight: 300;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.page-header .subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ── Buttons ── */
.btn-gold {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background: linear-gradient(135deg, var(--gold), #a8843d);
    color: #0a0a0a;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition:
        opacity 0.2s,
        transform 0.15s;
    text-decoration: none;
}

.btn-gold:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-gold:disabled {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: 8px;
    font-size: 0.875rem;
    cursor: pointer;
    transition:
        border-color 0.2s,
        color 0.2s;
    text-decoration: none;
}

.btn-ghost:hover {
    border-color: rgba(201, 169, 110, 0.3);
    color: var(--text-primary);
}

.btn-danger {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
    border-radius: 8px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.18);
}

/* ── Forms ── */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.form-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.65rem 0.9rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.2s;
    outline: none;
}

.form-input:focus {
    border-color: rgba(201, 169, 110, 0.5);
}

.form-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

select.form-input {
    cursor: pointer;
}

textarea.form-input {
    resize: vertical;
    min-height: 100px;
}

/* ── Alert SPA ── */
.alert-spa {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.alert-spa.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-spa.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
}

.alert-spa.info {
    background: rgba(201, 169, 110, 0.08);
    border: 1px solid rgba(201, 169, 110, 0.2);
    color: var(--gold-light);
}

.alert-spa.hidden {
    display: none;
}

/* ── Card SPA ── */
.spa-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.25rem;
}

/* ── Beta banner ── */
.beta-banner {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem 1.25rem;
    background: rgba(201, 169, 110, 0.08);
    border: 1px solid rgba(201, 169, 110, 0.2);
    border-radius: 10px;
    margin-bottom: 2rem;
    color: var(--gold-light);
}

.beta-banner strong {
    display: block;
    margin-bottom: 0.25rem;
}

.beta-banner-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

.memory-form--disabled {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
}

/* ══════════════════════════════════════════════════════════════════════════
   RESPONSIVE MOBILE
   ══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        width: var(--sidebar-width) !important;
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .main-wrapper {
        margin-left: 0 !important;
        transition: none;
    }

    .topbar-hamburger {
        display: flex;
    }

    .page-content {
        padding: 1.25rem;
    }
}