:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-card: #18181b;
    --bg-input: #1e1e22;
    --border: #27272a;
    --border-hover: #3f3f46;
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #8b5cf6;
    --accent-hover: #7c3aed;
    --accent-dim: rgba(139, 92, 246, 0.1);
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --font-heading: 'Outfit',
        -apple-system,
        sans-serif;
}

/* Dark scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #3f3f46;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #52525b;
}

* {
    scrollbar-width: thin;
    scrollbar-color: #3f3f46 transparent;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

h2,
h3,
h4 {
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    line-height: 1.2;
    letter-spacing: -0.02em;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--accent-hover);
}

/* ====== Navbar ====== */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    height: 56px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.navbar-nav {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    list-style: none;
}

.navbar-nav a,
.navbar-nav button {
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.navbar-nav a:hover,
.navbar-nav button:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

/* ====== User Menu (avatar + dropdown) ====== */
.user-menu {
    position: relative;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
    transition: opacity var(--transition);
}

.user-avatar:hover {
    opacity: 0.85;
}

.user-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    width: 220px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    z-index: 200;
    overflow: hidden;
}

.user-menu.open .user-dropdown {
    display: block;
}

.user-dropdown-header {
    padding: 0.85rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.user-dropdown-header strong {
    font-size: 0.85rem;
}

.user-dropdown-divider {
    height: 1px;
    background: var(--border);
}

.user-dropdown-label {
    padding: 0.5rem 1rem 0.25rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    font-weight: 600;
}

.user-dropdown-item {
    display: block;
    padding: 0.55rem 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition);
}

.user-dropdown-item:hover {
    background: var(--accent-dim);
    color: var(--text-primary);
}

/* ====== Layout ====== */
.page-wrapper {
    display: flex;
    min-height: calc(100vh - 56px);
}

.sidebar {
    width: 220px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 1.5rem 0;
    flex-shrink: 0;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav a {
    display: block;
    padding: 0.6rem 1.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: all var(--transition);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    color: var(--text-primary);
    background: var(--accent-dim);
    border-right: 2px solid var(--accent);
}

.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1000px;
}

/* Mobile hamburger (hidden on desktop) */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
    font-family: inherit;
}

/* Sidebar overlay (mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 49;
}

/* ====== Cards ====== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* ====== Stats ====== */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

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

.form-input {
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--accent);
}

.form-input::placeholder {
    color: var(--text-muted);
}

/* ====== Buttons ====== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}

.btn-outline:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background: var(--bg-card);
}

.btn-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: #fff;
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

/* ====== Table ====== */
.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

thead th {
    text-align: left;
    padding: 0.6rem 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}

tbody td {
    padding: 0.7rem 0.85rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
}

tbody tr {
    transition: background var(--transition);
}

tbody tr:hover {
    background: var(--accent-dim);
}

tbody tr.unread td {
    color: var(--text-primary);
    font-weight: 500;
}

/* ====== Auth pages ====== */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.auth-box {
    width: 100%;
    max-width: 400px;
}

.auth-box h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.auth-box p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

/* ====== Alerts ====== */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

/* ====== Misc ====== */
.divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.text-muted {
    color: var(--text-muted);
}

.text-sm {
    font-size: 0.8rem;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.flex {
    display: flex;
}

.gap-1 {
    gap: 0.5rem;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

/* ====== Landing Page ====== */
.lp-body {
    font-family: 'Inter', -apple-system, sans-serif;
}

.lp-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 3rem;
    height: 60px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(12px);
    z-index: 100;
}

.lp-logo {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.lp-nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lp-link {
    padding: 0.4rem 0.85rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-radius: var(--radius);
    transition: all var(--transition);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.lp-link:hover {
    color: var(--text-primary);
    background: #ffffff0a;
}

.lp-pill {
    padding: 0.45rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #fff;
    background: var(--accent);
    border-radius: 6px;
    transition: background var(--transition);
}

.lp-pill:hover {
    background: var(--accent-hover);
    color: #fff;
}

/* Hero */
.lp-hero {
    text-align: center;
    padding: 9rem 2rem 7rem;
    max-width: 720px;
    margin: 0 auto;
    position: relative;
}

.lp-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 500px;
    background: radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.lp-hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    color: #fff;
    margin-bottom: 1.5rem;
}

.lp-hero h1 em {
    font-style: normal;
    background: linear-gradient(135deg, #a78bfa, #60a5fa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lp-hero p {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto 2.5rem;
}

.lp-actions {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.lp-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.6rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    background: var(--accent);
    border-radius: var(--radius);
    transition: background var(--transition);
}

.lp-btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
}

.lp-btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 0.7rem 1.6rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: #ffffff08;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.lp-btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.lp-btn-outline {
    display: inline-flex;
    align-items: center;
    padding: 0.7rem 1.6rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
    text-align: center;
    justify-content: center;
}

.lp-btn-outline:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
}

/* Sections */
.lp-section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 7rem 2rem;
    text-align: center;
}

.lp-eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 1rem;
}

.lp-section h2 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.lp-sub {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 3.5rem;
}

/* Steps */
.lp-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    text-align: left;
}

.lp-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent-dim);
    border: 1px solid var(--border);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.lp-step h3 {
    font-size: 0.975rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.lp-step p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* Features */
.lp-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: left;
}

.lp-feature {
    padding: 2rem;
    background: var(--bg-secondary);
    transition: background var(--transition);
}

.lp-feature:hover {
    background: var(--bg-card);
}

.lp-feature h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.lp-feature p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Plans */
.lp-plans {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.lp-plan {
    flex: 1;
    min-width: 200px;
    max-width: 300px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: left;
}

.lp-plan--featured {
    border-color: var(--accent);
}

.lp-plan-name {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.lp-plan--featured .lp-plan-name {
    color: var(--accent);
}

.lp-plan-price {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1;
}

.lp-plan-price span {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text-muted);
}

.lp-plan-items {
    list-style: none;
    margin-bottom: 1.75rem;
}

.lp-plan-items li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.35rem 0;
    border-bottom: 1px solid var(--border);
}

.lp-plan-items li:last-child {
    border-bottom: none;
}

/* CTA Banner */
.lp-cta {
    text-align: center;
    padding: 6rem 2rem 8rem;
    max-width: 600px;
    margin: 0 auto;
}

.lp-cta h2 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.lp-cta p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

/* Footer */
.lp-footer {
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 3rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .lp-nav {
        padding: 0 1.25rem;
    }

    .lp-hero h1 {
        font-size: 2.5rem;
    }

    .lp-steps {
        grid-template-columns: 1fr;
    }

    .lp-features {
        grid-template-columns: 1fr;
    }

    .lp-plans {
        flex-direction: column;
        align-items: center;
    }

    .lp-plan {
        max-width: 100%;
    }

    .lp-footer {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* ====== 3-Panel Email Client ====== */
.mail-app {
    display: grid;
    grid-template-columns: 200px 320px 1fr;
    height: calc(100vh - 52px);
    background: var(--bg-primary);
}

/* Mail topbar (always visible) */
.mail-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    height: 52px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

/* Mail sidebar */
.mail-sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.mail-sidebar-header {
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
}

.mail-sidebar-section {
    padding: 0.75rem 0;
}

.mail-sidebar-label {
    padding: 0 1.25rem 0.4rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    font-weight: 600;
}

.mail-sidebar-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all var(--transition);
    text-decoration: none;
    border-left: 3px solid transparent;
}

.mail-sidebar-item:hover {
    background: var(--accent-dim);
    color: var(--text-primary);
}

.mail-sidebar-item.active {
    background: var(--accent-dim);
    color: var(--accent);
    border-left-color: var(--accent);
    font-weight: 500;
}

.mail-sidebar-badge {
    background: var(--accent);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.1rem 0.45rem;
    border-radius: 9999px;
    min-width: 1.2rem;
    text-align: center;
}

.mail-sidebar-empty {
    padding: 0.5rem 1.25rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.mail-sidebar-bottom {
    margin-top: auto;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.mail-sidebar-bottom a {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

.mail-sidebar-bottom a:hover {
    color: var(--text-primary);
}

/* Mail sidebar overlay (mobile) */
.mail-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 49;
}

/* Mail list panel */
.mail-list-panel {
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
}

.mail-list-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mail-list-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
}

/* Search & Sort bar */
.mail-search-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-primary);
}

.mail-search-form {
    flex: 1;
}

.mail-search-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.mail-search-icon {
    position: absolute;
    left: 0.6rem;
    color: var(--text-muted);
    pointer-events: none;
}

.mail-search-input {
    width: 100%;
    padding: 0.45rem 0.6rem 0.45rem 2rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition);
}

.mail-search-input:focus {
    border-color: var(--accent);
}

.mail-search-input::placeholder {
    color: var(--text-muted);
}

.mail-search-clear {
    position: absolute;
    right: 0.5rem;
    color: var(--text-muted);
    font-size: 1.1rem;
    text-decoration: none;
    line-height: 1;
    transition: color var(--transition);
}

.mail-search-clear:hover {
    color: var(--text-primary);
}

.mail-sort-wrap {
    flex-shrink: 0;
}

.mail-sort-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
    transition: all var(--transition);
    white-space: nowrap;
}

.mail-sort-btn:hover {
    background: var(--accent-dim);
    color: var(--text-primary);
}

.mail-list-table-header {
    display: flex;
    padding: 0.5rem 1.25rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    font-weight: 600;
}

.mail-col-sender {
    flex: 1;
}

.mail-col-date {
    width: 70px;
    text-align: right;
}

.mail-list-items {
    flex: 1;
    overflow-y: auto;
}

.mail-list-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: var(--text-secondary);
    transition: background var(--transition);
    cursor: pointer;
}

.mail-list-row:hover {
    background: rgba(255, 255, 255, 0.02);
}

.mail-list-row.selected {
    background: var(--accent-dim);
    border-left: 3px solid var(--accent);
}

.mail-list-row.unread .mail-col-sender strong {
    color: var(--text-primary);
}

.mail-list-row .mail-col-sender strong {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.1rem;
}

.mail-list-row .mail-col-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.mail-list-empty {
    padding: 2rem 1.25rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.mail-list-pager {
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

/* Mail preview panel */
.mail-preview-toolbar {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.35rem 0.75rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.toolbar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    color: var(--text-muted);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition);
}

.toolbar-btn:hover {
    background: var(--accent-dim);
    color: var(--text-primary);
}

/* Kebab dropdown menu */
.mail-kebab {
    position: relative;
}

.mail-kebab-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 4px);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    min-width: 160px;
    z-index: 200;
    overflow: hidden;
}

.mail-kebab.open .mail-kebab-menu {
    display: block;
}

.mail-kebab-menu button {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.6rem 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
}

.mail-kebab-menu button:hover {
    background: var(--accent-dim);
    color: var(--text-primary);
}

.mail-preview-panel {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background: var(--bg-card);
}

.mail-preview-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
}

.mail-preview-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.mail-preview-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.mail-preview-body {
    padding: 1rem 2rem;
    flex: 1;
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--text-secondary);
    word-break: break-word;
}

.mail-preview-raw {
    padding: 0 2rem 2rem;
}

.mail-preview-raw summary {
    font-size: 0.75rem;
    color: var(--text-muted);
    cursor: pointer;
    margin-bottom: 0.5rem;
}

.mail-preview-raw pre {
    background: var(--bg-input);
    border-radius: var(--radius);
    padding: 1rem;
    font-size: 0.7rem;
    line-height: 1.5;
    overflow-x: auto;
    color: var(--text-muted);
}

.mail-preview-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.mail-preview-back {
    display: none;
}

/* ====== RESPONSIVE (mobile ≤ 768px) ====== */
@media (max-width: 768px) {

    /* Show hamburger */
    .mobile-menu-btn {
        display: block;
    }

    .desktop-only {
        display: none !important;
    }

    /* Dashboard sidebar → slide-out drawer */
    .sidebar {
        display: flex;
        flex-direction: column;
        position: fixed;
        left: -260px;
        top: 56px;
        bottom: 0;
        width: 260px;
        z-index: 50;
        transition: left 0.25s ease;
    }

    .sidebar.open {
        left: 0;
    }

    .sidebar.open~.sidebar-overlay {
        display: block;
    }

    .main-content {
        max-width: 100%;
        padding: 1rem;
    }

    /* Landing */
    .features {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero {
        padding: 3rem 1.5rem 2rem;
    }

    .stats-row {
        grid-template-columns: 1fr 1fr;
    }

    /* Mail app mobile */
    .mail-app {
        grid-template-columns: 1fr;
    }

    /* Mail sidebar → slide-out drawer */
    .mail-sidebar {
        position: fixed;
        left: -260px;
        top: 52px;
        bottom: 0;
        width: 260px;
        z-index: 50;
        transition: left 0.25s ease;
    }

    .mail-sidebar.open {
        left: 0;
    }

    .mail-sidebar.open~.mail-sidebar-overlay {
        display: block;
    }

    .mail-sidebar-overlay {
        position: fixed;
        inset: 0;
        top: 52px;
        z-index: 49;
    }

    /* Mail list/preview toggling */
    .mail-list-panel {
        border-right: none;
    }

    .mail-list-panel.mobile-hidden {
        display: none;
    }

    .mail-preview-panel {
        display: none;
    }

    .mail-preview-panel.mobile-visible {
        display: flex;
    }

    .mail-preview-back {
        display: block;
        padding: 0.75rem 1rem;
        border-bottom: 1px solid var(--border);
    }

    /* Navbar compact */
    .navbar {
        padding: 0 1rem;
    }
}