/* ========================================
   MAIL SERVER - DARK THEME
   Base: Black (#0a0a0a) & Gray (#141414, #1e1e1e, #2a2a2a)
   Text: White (#ffffff) & Light Gray (#a0a0a0, #6b6b6b)
   Accent: Blue (#3b82f6)
   Semantic: Red (#ef4444), Yellow (#eab308), Green (#22c55e)
   ======================================== */

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1e1e1e;
    --bg-elevated: #2a2a2a;
    --bg-hover: #333333;
    --border-color: #2a2a2a;
    --border-subtle: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #6b6b6b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --warning: #eab308;
    --warning-bg: rgba(234, 179, 8, 0.1);
    --success: #22c55e;
    --success-bg: rgba(34, 197, 94, 0.1);
    --info-bg: rgba(59, 130, 246, 0.08);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.2);
}

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

html {
    overflow-x: hidden;
    max-width: 100vw;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
    margin: 0;
}

h1, h2, h3, h4, h5, h6 { color: var(--text-primary); }
.page-title { color: var(--text-primary); font-weight: 600; letter-spacing: -0.02em; }
.text-muted { color: var(--text-muted) !important; }
small { color: var(--text-secondary); }
.form-label { color: var(--text-secondary); font-size: 0.875rem; font-weight: 500; }
.form-check-label { color: var(--text-secondary); }
hr { border-color: var(--border-color); opacity: 0.5; }

/* ========================================
   LOGIN PAGE
   ======================================== */
#loginScreen {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.login-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.login-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float-orb 15s ease-in-out infinite;
}

.login-orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #3b82f6, transparent 70%);
    top: -10%;
    left: -10%;
    animation-duration: 18s;
}

.login-orb-2 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, #8b5cf6, transparent 70%);
    bottom: -10%;
    right: -10%;
    animation-duration: 22s;
    animation-delay: -5s;
}

.login-orb-3 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, #06b6d4, transparent 70%);
    top: calc(50% - 125px);
    left: calc(50% - 125px);
    animation-duration: 20s;
    animation-delay: -10s;
}

@keyframes float-orb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(40px, 30px) scale(1.05); }
}

.login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    margin: 1rem;
    animation: card-entrance 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(30px) scale(0.96);
}

@keyframes card-entrance {
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-card-inner {
    background: rgba(20, 20, 20, 0.85);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,0.03);
}

.login-logo {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    color: white;
    animation: logo-pulse 3s ease-in-out infinite;
}

@keyframes logo-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.3); }
    50% { box-shadow: 0 0 20px 5px rgba(59, 130, 246, 0.15); }
}

.login-subtitle { color: var(--text-muted); font-size: 0.9rem; }

.input-group-custom { position: relative; }

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    z-index: 2;
    transition: color var(--transition-fast);
    pointer-events: none;
}

.input-group-custom .form-control { padding-left: 42px; }
.input-group-custom:focus-within .input-icon { color: var(--accent); }

#loginScreen .form-control {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem 0.75rem 42px;
    font-size: 0.95rem;
    transition: all var(--transition-base);
}

#loginScreen .form-control:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    color: var(--text-primary);
}

#loginScreen .form-control::placeholder { color: var(--text-muted); }

.login-btn {
    position: relative;
    padding: 0.8rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent), #2563eb);
    border: none;
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: white;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    background: linear-gradient(135deg, #4f8ff7, var(--accent));
    color: white;
}

.login-btn:active { transform: translateY(0); }
.login-btn .btn-arrow { transition: transform var(--transition-fast); }
.login-btn:hover .btn-arrow { transform: translateX(4px); }

#loginScreen .alert-danger {
    background: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    border-radius: var(--radius-sm);
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.navbar-brand {
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.brand-icon { color: var(--accent); font-size: 1.1rem; }

.nav-icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.6rem;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.nav-icon-btn:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--bg-hover);
}

.user-email-display {
    color: var(--text-muted);
    font-size: 0.8rem;
    max-width: 160px;
}

/* ========================================
   SIDEBAR
   ======================================== */
.sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    height: calc(100vh - 53px);
    overflow-y: auto;
    position: sticky;
    top: 53px;
}

.sidebar-section-title {
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.sidebar-divider { border-color: var(--border-color); opacity: 0.5; margin: 0.75rem 0; }

.domain-item {
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: 2px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    position: relative;
}

.domain-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transform: translateX(2px);
}

.domain-item.active {
    background: var(--accent-glow);
    color: var(--accent);
    font-weight: 500;
    border-left: 3px solid var(--accent);
    padding-left: calc(0.75rem - 3px);
}

.domain-item.active:hover { background: rgba(59, 130, 246, 0.2); }

.badge-count {
    background: var(--danger);
    color: white;
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 0.7rem;
    font-weight: 600;
    min-width: 20px;
    text-align: center;
}

.domain-item.active .badge-count { background: var(--accent); color: white; }

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    background: var(--bg-primary);
    min-height: calc(100vh - 53px);
    padding: 0;
}

/* ========================================
   SEARCH
   ======================================== */
.search-container { position: relative; max-width: 500px; }

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    z-index: 1;
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

.search-input {
    padding-left: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    height: 42px;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.search-input:focus {
    background: var(--bg-elevated);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    color: var(--text-primary);
}

.search-input::placeholder { color: var(--text-muted); }
.search-container:focus-within .search-icon { color: var(--accent); }

/* ========================================
   EMAIL ACTIONS BAR
   ======================================== */
.email-actions-bar {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.select-checkbox-btn {
    padding: 4px 8px;
    display: flex;
    align-items: center;
    border-right: none !important;
    height: 31px;
}

.select-checkbox-btn .form-check-input { margin: 0; cursor: pointer; }
.btn-group > .btn-outline-secondary:not(:last-child) { border-right: none; }
.btn-group > .dropdown-toggle-split { padding-left: 8px; padding-right: 8px; height: 31px; }
.btn-group { height: 31px; }

/* ========================================
   EMAIL ITEMS
   ======================================== */
.email-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    margin-bottom: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-secondary);
    overflow: hidden;
    max-width: 100%;
    word-break: break-word;
    position: relative;
}

.email-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--transition-fast);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.03), transparent);
    pointer-events: none;
}

.email-item:hover {
    border-color: var(--bg-hover);
    background: var(--bg-tertiary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.email-item:hover::before { opacity: 1; }
.email-item:active { transform: translateY(0); }

.email-item.unread {
    background: rgba(59, 130, 246, 0.06);
    border-left: 3px solid var(--accent);
    padding-left: 11px;
}

.email-item.unread:hover { background: rgba(59, 130, 246, 0.1); }

.email-item.selected {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
}

.email-item.selected:hover { background: rgba(59, 130, 246, 0.15); }

.email-item.starred {
    background: var(--warning-bg);
    border-color: rgba(234, 179, 8, 0.2);
}

.email-item.starred:hover { background: rgba(234, 179, 8, 0.15); }
.email-item.starred.unread { background: rgba(234, 179, 8, 0.1); border-left: 3px solid var(--warning); }
.email-item.starred.selected { background: rgba(234, 179, 8, 0.18); }

.email-item-content { display: flex; align-items: flex-start; }

.email-item-left {
    display: flex;
    align-items: center;
    margin-right: 12px;
    flex-shrink: 0;
}

.email-item-body { flex: 1; min-width: 0; }

.star-btn {
    color: var(--text-muted);
    font-size: 18px;
    transition: all var(--transition-fast);
    padding: 0;
    background: none;
    border: none;
}

.star-btn:hover { color: var(--warning); transform: scale(1.2); }
.star-btn .bi-star-fill { color: var(--warning) !important; }
.text-warning { color: var(--warning) !important; }

.email-checkbox { margin-top: 0; margin-right: 10px; vertical-align: middle; }

.email-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
    gap: 0.5rem;
}

.email-from {
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100%;
    font-size: 0.9rem;
}

.email-date { color: var(--text-muted); font-size: 0.8rem; flex-shrink: 0; }
.email-subject { color: var(--text-secondary); margin-bottom: 3px; font-size: 0.875rem; }

.email-preview {
    color: var(--text-muted);
    font-size: 0.8rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ========================================
   EMAIL DETAIL VIEW
   ======================================== */
.email-detail-header {
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

#emailSubject { color: var(--text-primary); font-weight: 600; letter-spacing: -0.02em; }

.email-body-content {
    line-height: 1.7;
    color: var(--text-secondary);
    overflow-x: auto;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.email-body-content img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
.email-body-content table { max-width: 100%; overflow-x: auto; display: block; }
.email-body-content pre { overflow-x: auto; max-width: 100%; white-space: pre-wrap; }

#toggleFavoriteBtn .bi-star-fill { color: var(--warning) !important; }

/* ========================================
   USER & DOMAIN CARDS
   ======================================== */
.user-card, .domain-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin-bottom: 12px;
    background: var(--bg-secondary);
    transition: all var(--transition-fast);
}

.user-card:hover, .domain-card:hover {
    border-color: var(--bg-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.user-card-header, .domain-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.user-card h5, .domain-card h5 { font-size: 0.95rem; font-weight: 600; }

/* ========================================
   BUTTONS
   ======================================== */
.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.btn-primary:hover, .btn-primary:focus {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: white;
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.btn-primary:active { transform: translateY(0); }

.btn-secondary {
    background: var(--bg-elevated);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

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

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

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

.btn-outline-danger { color: var(--danger); border-color: rgba(239, 68, 68, 0.3); }
.btn-outline-danger:hover { background: var(--danger); color: white; border-color: var(--danger); }

.btn-outline-success { color: var(--success); border-color: rgba(34, 197, 94, 0.3); }
.btn-outline-success:hover { background: var(--success); color: white; border-color: var(--success); }

.btn-outline-warning { color: var(--warning); border-color: rgba(234, 179, 8, 0.3); }
.btn-outline-warning:hover { background: var(--warning); color: #000; border-color: var(--warning); }

/* ========================================
   FORM CONTROLS
   ======================================== */
.form-control {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.form-control:focus {
    background: var(--bg-elevated);
    border-color: var(--accent);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.form-select {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23a0a0a0' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
}

.form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }

.form-check-input { background-color: var(--bg-tertiary); border-color: var(--border-color); }
.form-check-input:checked { background-color: var(--accent); border-color: var(--accent); }
.form-check-input:focus { box-shadow: 0 0 0 3px var(--accent-glow); border-color: var(--accent); }

/* ========================================
   DROPDOWNS
   ======================================== */
.dropdown-menu {
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: dropdown-enter 0.15s ease-out;
}

@keyframes dropdown-enter {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

.dropdown-item {
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.75rem;
    margin: 0 4px;
    width: calc(100% - 8px);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.dropdown-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.dropdown-divider { border-color: var(--border-color); opacity: 0.5; }

/* ========================================
   MODALS
   ======================================== */
.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
}

.modal-header { border-bottom: 1px solid var(--border-color); padding: 1.25rem 1.5rem; }
.modal-footer { border-top: 1px solid var(--border-color); padding: 1rem 1.5rem; }
.modal-body { padding: 1.5rem; overflow-x: visible; }

.btn-close-white { filter: invert(1) grayscale(100%) brightness(200%); }

#domainAccessContainer .card {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

#domainAccessContainer .card-body { overflow-x: visible; padding-right: 1.5rem; }
#domainAccessContainer .form-check { padding-right: 1.5rem; overflow: visible; }
#domainAccessContainer .form-check-input { flex-shrink: 0; }
#domainAccessContainer .form-check-label { padding-right: 1rem; word-wrap: break-word; }

/* ========================================
   ALERTS
   ======================================== */
.alert-danger {
    background: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border-radius: var(--radius-sm);
}

.alert-info {
    background: var(--info-bg);
    border: 1px solid rgba(59, 130, 246, 0.15);
    color: var(--accent);
    border-radius: var(--radius-sm);
}

.alert-info i { color: var(--accent); }

/* ========================================
   BADGES
   ======================================== */
.badge.bg-danger { background-color: var(--danger) !important; color: white; }
.badge.bg-success { background-color: var(--success) !important; color: white; }
.badge.bg-secondary { background-color: var(--bg-elevated) !important; color: var(--text-secondary); }

/* ========================================
   PAGINATION
   ======================================== */
.pagination { justify-content: center; gap: 4px; }

.page-link {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm) !important;
    padding: 0.4rem 0.75rem;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.page-link:hover { background: var(--bg-elevated); color: var(--text-primary); border-color: var(--bg-hover); }
.page-item.active .page-link { background: var(--accent); color: white; border-color: var(--accent); }
.page-item.disabled .page-link { background: var(--bg-primary); color: var(--text-muted); border-color: var(--border-color); }

/* ========================================
   SKELETON LOADER
   ======================================== */
.skeleton-loader { pointer-events: none; opacity: 0.5; }

.skeleton-icon {
    width: 20px;
    height: 20px;
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-elevated) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 4px;
    margin-right: 8px;
}

.skeleton-text {
    height: 14px;
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-elevated) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 4px;
    margin-bottom: 8px;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ========================================
   EMPTY STATES & LOADING
   ======================================== */
.loading { text-align: center; padding: 50px; color: var(--text-muted); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state i { font-size: 3.5rem; margin-bottom: 16px; opacity: 0.4; display: block; }
.empty-state h5 { color: var(--text-secondary); font-weight: 500; }

/* ========================================
   RESTORE / DELETE BUTTONS
   ======================================== */
.restore-btn {
    color: var(--success);
    border-color: rgba(34, 197, 94, 0.3);
    font-size: 0.8rem;
    transition: all var(--transition-fast);
}

.restore-btn:hover { background: var(--success); color: white; border-color: var(--success); transform: translateY(-1px); }

.permanent-delete-btn {
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
    font-size: 0.8rem;
    transition: all var(--transition-fast);
}

.permanent-delete-btn:hover { background: var(--danger); color: white; border-color: var(--danger); transform: translateY(-1px); }
.restore-btn i, .permanent-delete-btn i { color: inherit; }

/* ========================================
   SCROLLBAR
   ======================================== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--bg-hover); }

/* ========================================
   UTILITY OVERRIDES
   ======================================== */
.vh-100 { height: 100vh; }
.overflow-auto { overflow-y: auto; }
.bg-light { background-color: var(--bg-secondary) !important; }
.border-end { border-color: var(--border-color) !important; }

.card { background: var(--bg-secondary); border-color: var(--border-color); color: var(--text-primary); }
.card-header { background: var(--bg-tertiary); border-bottom-color: var(--border-color); color: var(--text-primary); }
.card-body { color: var(--text-primary); }

.navbar.navbar-dark, .navbar.bg-dark { background: var(--bg-secondary) !important; }

::selection { background: rgba(59, 130, 246, 0.3); color: white; }

/* ========================================
   DARK MODE COMPAT (JS toggles body.dark-mode)
   Already dark by default, these are safety overrides
   ======================================== */
body.dark-mode { background-color: var(--bg-primary); color: var(--text-primary); }
body.dark-mode .bg-light { background-color: var(--bg-secondary) !important; }
body.dark-mode .navbar-dark, body.dark-mode .navbar.bg-dark { background-color: var(--bg-secondary) !important; }
body.dark-mode .card { background-color: var(--bg-secondary); border-color: var(--border-color); color: var(--text-primary); }
body.dark-mode .modal-content { background-color: var(--bg-secondary); border-color: var(--border-color); color: var(--text-primary); }
body.dark-mode .modal-header { border-bottom-color: var(--border-color); }
body.dark-mode .modal-footer { border-top-color: var(--border-color); }
body.dark-mode .form-control { background-color: var(--bg-tertiary); color: var(--text-primary); border-color: var(--border-color); }
body.dark-mode .form-control:focus { background-color: var(--bg-elevated); color: var(--text-primary); border-color: var(--accent); }
body.dark-mode .form-control::placeholder { color: var(--text-muted) !important; opacity: 1; }
body.dark-mode textarea.form-control::placeholder { color: var(--text-muted) !important; opacity: 1; }
body.dark-mode input::placeholder { color: var(--text-muted) !important; opacity: 1; }
body.dark-mode input.form-control::placeholder { color: var(--text-muted) !important; opacity: 1; }
body.dark-mode .form-select { background-color: var(--bg-tertiary); color: var(--text-primary); border-color: var(--border-color); }
body.dark-mode .border-end { border-color: var(--border-color) !important; }
body.dark-mode .text-muted { color: var(--text-muted) !important; }
body.dark-mode h1, body.dark-mode h2, body.dark-mode h3, body.dark-mode h4, body.dark-mode h5, body.dark-mode h6 { color: var(--text-primary); }
body.dark-mode .form-label { color: var(--text-secondary); }
body.dark-mode small { color: var(--text-secondary); }
body.dark-mode h6.text-muted { color: var(--text-muted) !important; }
body.dark-mode .email-item { background-color: var(--bg-secondary); border-color: var(--border-color); }
body.dark-mode .email-item:hover { background-color: var(--bg-tertiary); }
body.dark-mode .email-item.unread { background-color: rgba(59, 130, 246, 0.06); }
body.dark-mode .email-item.unread:hover { background-color: rgba(59, 130, 246, 0.1); }
body.dark-mode .email-item.selected { background-color: rgba(59, 130, 246, 0.1); border-color: rgba(59, 130, 246, 0.3); }
body.dark-mode .email-item.starred { background-color: var(--warning-bg); border-color: rgba(234, 179, 8, 0.2); }
body.dark-mode .email-item.starred:hover { background-color: rgba(234, 179, 8, 0.15); }
body.dark-mode .email-item.starred.unread { background-color: rgba(234, 179, 8, 0.1); }
body.dark-mode .email-item.starred.selected { background-color: rgba(234, 179, 8, 0.18); }
body.dark-mode .email-from { color: var(--text-primary); }
body.dark-mode .email-date { color: var(--text-muted); }
body.dark-mode .email-subject { color: var(--text-secondary); }
body.dark-mode .email-preview { color: var(--text-muted); }
body.dark-mode .domain-item { color: var(--text-secondary); }
body.dark-mode .domain-item:hover { background-color: var(--bg-tertiary); }
body.dark-mode .user-card, body.dark-mode .domain-card { background-color: var(--bg-secondary); border-color: var(--border-color); }
body.dark-mode .page-link { background-color: var(--bg-secondary); color: var(--text-secondary); border-color: var(--border-color); }
body.dark-mode .page-link:hover { background-color: var(--bg-elevated); color: var(--text-primary); }
body.dark-mode .page-item.active .page-link { background-color: var(--accent); color: white; border-color: var(--accent); }
body.dark-mode .page-item.disabled .page-link { background-color: var(--bg-primary); color: var(--text-muted); }
body.dark-mode #emailDetailView .btn i { color: var(--text-secondary); }
body.dark-mode #backToInboxBtn i, body.dark-mode #deleteEmailBtn i, body.dark-mode #toggleFavoriteBtn i { color: var(--text-secondary) !important; }
body.dark-mode #toggleFavoriteBtn .bi-star-fill { color: var(--warning) !important; }
body.dark-mode #loginScreen { background-color: var(--bg-primary); }
body.dark-mode #loginScreen .card { background-color: var(--bg-secondary); border-color: var(--border-color); }
body.dark-mode #loginScreen h2 { color: var(--text-primary); }
body.dark-mode #loginScreen .form-label { color: var(--text-secondary); }
body.dark-mode #loginScreen .form-control { background-color: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.1); color: var(--text-primary); }
body.dark-mode #loginScreen .form-control:focus { background-color: rgba(255,255,255,0.08); border-color: var(--accent); color: var(--text-primary); }
body.dark-mode #loginScreen .alert { background-color: var(--danger-bg); border-color: rgba(239, 68, 68, 0.2); color: #fca5a5; }
body.dark-mode .dropdown-menu { background-color: var(--bg-elevated); border-color: var(--border-color); }
body.dark-mode .dropdown-item { color: var(--text-secondary); }
body.dark-mode .dropdown-item:hover { background-color: var(--bg-hover); color: var(--text-primary); }
body.dark-mode .skeleton-icon, body.dark-mode .skeleton-text { background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-elevated) 50%, var(--bg-tertiary) 75%); background-size: 200% 100%; }
body.dark-mode .loading { color: var(--text-muted); }
body.dark-mode .empty-state { color: var(--text-muted); }
body.dark-mode .alert-info { background-color: var(--info-bg); border-color: rgba(59, 130, 246, 0.15); color: var(--accent); }
body.dark-mode .alert-info i { color: var(--accent); }
body.dark-mode .btn-close { filter: invert(1); }
body.dark-mode .modal-footer .btn-secondary { background-color: var(--bg-elevated); border-color: var(--border-color); color: var(--text-secondary); }
body.dark-mode .email-actions-bar { border-bottom-color: var(--border-color); }
body.dark-mode .search-input { background-color: var(--bg-tertiary); color: var(--text-primary); }
body.dark-mode .search-input:focus { background-color: var(--bg-elevated); border-color: var(--accent); }
body.dark-mode .card-header { color: var(--text-primary); }
body.dark-mode .btn-outline-secondary { color: var(--text-secondary); border-color: var(--border-color); }
body.dark-mode .btn-outline-secondary:hover { background-color: var(--bg-elevated); color: var(--text-primary); }
body.dark-mode .btn-primary { background-color: var(--accent); border-color: var(--accent); color: white; }
body.dark-mode .btn-primary:hover { background-color: var(--accent-hover); border-color: var(--accent-hover); }
body.dark-mode .btn-outline-primary { color: var(--accent); border-color: var(--accent); }
body.dark-mode .btn-outline-primary:hover { background-color: var(--accent); color: white; }
body.dark-mode .restore-btn { color: var(--success); border-color: rgba(34, 197, 94, 0.3); }
body.dark-mode .restore-btn:hover { background-color: var(--success); color: white; }
body.dark-mode .permanent-delete-btn { color: var(--danger); border-color: rgba(239, 68, 68, 0.3); }
body.dark-mode .permanent-delete-btn:hover { background-color: var(--danger); color: white; }
body.dark-mode .restore-btn i, body.dark-mode .permanent-delete-btn i { color: inherit; }
body.dark-mode .user-card .btn-outline-primary, body.dark-mode .domain-card .btn-outline-primary { color: var(--accent); border-color: var(--accent); }
body.dark-mode .user-card .btn-outline-danger, body.dark-mode .domain-card .btn-outline-danger { color: var(--danger); border-color: rgba(239, 68, 68, 0.3); }
body.dark-mode .user-card .btn-outline-primary i, body.dark-mode .domain-card .btn-outline-primary i { color: var(--accent); }
body.dark-mode .user-card .btn-outline-danger i, body.dark-mode .domain-card .btn-outline-danger i { color: var(--danger); }
body.dark-mode .badge.bg-danger { background-color: var(--danger) !important; }
body.dark-mode .badge.bg-success { background-color: var(--success) !important; }
body.dark-mode .badge.bg-secondary { background-color: var(--bg-elevated) !important; }
body.dark-mode .navbar .btn-outline-light i { color: var(--text-secondary); }
body.dark-mode #refreshBtn i, body.dark-mode #favRefreshBtn i, body.dark-mode #delRefreshBtn i { color: var(--text-secondary); }
body.dark-mode .domain-card .btn-outline-danger:hover { background-color: var(--danger); color: white; border-color: var(--danger); }

/* ========================================
   ANIMATIONS
   ======================================== */
#inboxView, #emailDetailView, #userManagementView,
#domainManagementView, #favoritesView, #recentlyDeletedView {
    animation: view-enter 0.3s ease-out;
}

@keyframes view-enter {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.email-item { animation: item-enter 0.25s ease-out backwards; }
.email-item:nth-child(1) { animation-delay: 0.02s; }
.email-item:nth-child(2) { animation-delay: 0.04s; }
.email-item:nth-child(3) { animation-delay: 0.06s; }
.email-item:nth-child(4) { animation-delay: 0.08s; }
.email-item:nth-child(5) { animation-delay: 0.10s; }
.email-item:nth-child(6) { animation-delay: 0.12s; }
.email-item:nth-child(7) { animation-delay: 0.14s; }

@keyframes item-enter {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.user-card, .domain-card { animation: item-enter 0.25s ease-out backwards; }
.user-card:nth-child(1), .domain-card:nth-child(1) { animation-delay: 0.03s; }
.user-card:nth-child(2), .domain-card:nth-child(2) { animation-delay: 0.06s; }
.user-card:nth-child(3), .domain-card:nth-child(3) { animation-delay: 0.09s; }
.user-card:nth-child(4), .domain-card:nth-child(4) { animation-delay: 0.12s; }

/* ========================================
   RESPONSIVE: MOBILE (max 768px)
   ======================================== */
@media (max-width: 768px) {
    .navbar .container-fluid { padding: 0 0.5rem; }

    .sidebar-mobile {
        position: fixed;
        left: -100%;
        top: 53px;
        width: 280px;
        height: calc(100vh - 53px);
        z-index: 1040;
        transition: left var(--transition-smooth);
        overflow-y: auto;
        background: var(--bg-secondary);
        border-right: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
    }

    .sidebar-mobile.show { left: 0; }

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 53px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.6);
        z-index: 1035;
    }

    .sidebar-overlay.show {
        display: block;
        animation: overlay-fade 0.2s ease;
    }

    @keyframes overlay-fade {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    .mobile-menu-toggle { display: block !important; }
    .col-md-9.col-lg-10 { padding: 0 !important; }
    .main-content { min-height: calc(100vh - 53px); }

    .email-item { padding: 10px; margin-bottom: 4px; border-radius: var(--radius-sm); }
    .email-item:hover { transform: none; }
    .email-item-content { width: 100%; overflow: hidden; }
    .email-from { font-size: 0.85rem; max-width: 65%; }
    .email-date { font-size: 0.7rem; }
    .email-subject { font-size: 0.8rem; }
    .email-preview { font-size: 0.75rem; }

    .email-actions-bar { flex-wrap: wrap; padding: 6px 0; }
    .email-actions-bar .btn-group, .email-actions-bar .btn { margin-bottom: 4px; }

    .search-container { max-width: 100%; flex: 1 1 100%; margin-bottom: 8px; }
    .search-input { border-radius: var(--radius-xl); }

    .p-4 { padding: 1rem !important; }

    #emailDetailView { overflow-x: hidden; max-width: 100vw; }
    #emailSubject { font-size: 1.15rem; word-break: break-word; }
    #emailFromName, #emailFromAddress { word-break: break-all; max-width: 100%; }
    #emailBody, .email-body-content { overflow-x: hidden; word-wrap: break-word; }

    .domain-item { padding: 0.7rem 0.75rem; }
    .domain-item:hover { transform: none; }

    .pagination { flex-wrap: wrap; font-size: 0.85rem; }
    .page-link { padding: 0.35rem 0.6rem; }

    .user-card, .domain-card { padding: 1rem; }
    .user-card-header, .domain-card-header { flex-direction: column; align-items: flex-start; }
    .user-card-header > div:last-child, .domain-card-header > div:last-child { margin-top: 10px; }

    .modal-dialog { margin: 0.5rem; }

    body { font-size: 14px; }
    h4, .page-title { font-size: 1.15rem; }

    .navbar { padding: 0.3rem 0; }
    .navbar-brand { font-size: 0.9rem; }
    .brand-icon { display: none; }
    .user-email-display { font-size: 0.7rem; max-width: 100px; }
    .nav-icon-btn { padding: 0.25rem 0.4rem; font-size: 0.8rem; }

    #emailsList, #favoriteEmailsList, #deletedEmailsList { overflow-x: hidden; max-width: 100%; }
    .star-btn, .email-checkbox { min-width: 32px; min-height: 32px; }

    .login-card-inner { padding: 1.75rem; }
    .login-orb-1 { width: 250px; height: 250px; }
    .login-orb-2 { width: 200px; height: 200px; }
    .login-orb-3 { width: 150px; height: 150px; }

    * { max-width: 100vw; }
}

/* Very small phones */
@media (max-width: 480px) {
    .navbar { min-height: 48px; }
    .navbar-brand { font-size: 0.8rem; }
    .user-email-display { max-width: 80px; font-size: 0.65rem; }
    /* Ensure 44px touch target minimum on mobile */
    .nav-icon-btn { padding: 0.2rem 0.35rem; font-size: 0.75rem; min-height: 36px; min-width: 36px; display: inline-flex; align-items: center; justify-content: center; }

    .email-actions-bar { flex-direction: column; align-items: stretch; }
    .email-actions-bar .btn-group, .email-actions-bar .btn { width: 100%; margin-bottom: 4px; }
    .email-actions-bar .btn-group { height: auto; }
    .email-actions-bar .select-checkbox-btn { height: auto; min-height: 36px; }
    .email-actions-bar .dropdown-toggle-split { height: auto; min-height: 36px; }

    .email-item-left { flex-direction: column; align-items: flex-start; }
    .star-btn { margin-bottom: 4px; }
    .email-from { max-width: 55%; }

    /* User management header stacks properly */
    .d-flex.justify-content-between.flex-wrap { flex-direction: column; align-items: flex-start !important; }
    .d-flex.justify-content-between.flex-wrap > .d-flex { width: 100%; margin-top: 0.5rem; }

    /* Modal full width on very small screens */
    .modal-dialog { margin: 0.25rem; }
    .modal-dialog.modal-lg { max-width: calc(100vw - 0.5rem); }

    /* Email detail sender info wraps clean */
    #emailDetailView .d-flex.align-items-start { flex-direction: column; }
    #emailDetailView .d-flex.align-items-start > .d-flex.align-items-center { margin-top: 0.5rem; }
}

/* Tiny phones */
@media (max-width: 400px) {
    .page-title { font-size: 1rem; }
    .search-input { height: 38px; font-size: 0.8rem; }
    .btn-group .btn-sm { padding: 0.2rem 0.4rem; font-size: 0.7rem; }
    .p-3 { padding: 0.75rem !important; }
    .email-item { padding: 8px; margin-bottom: 3px; }
    .dropdown-menu { min-width: 150px; font-size: 0.8rem; }
    .email-actions-bar { gap: 0.25rem !important; }
    .login-card-inner { padding: 1.5rem; }
    .login-logo { width: 48px; height: 48px; font-size: 1.2rem; }
    #loginScreen h2 { font-size: 1.25rem; }
}

/* Tablet */
@media (min-width: 768px) and (max-width: 992px) {
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-9 { flex: 0 0 75%; max-width: 75%; }
    .domain-item { font-size: 0.8rem; }
    .sidebar { height: calc(100vh - 53px); }
}

/* Large screens */
@media (min-width: 1200px) {
    .email-item { padding: 14px 18px; }
    .search-container { max-width: 600px; }
}

/* ========================================
   TOAST NOTIFICATIONS
   ======================================== */
.toast-notification {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border-left: 3px solid var(--accent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.toast-notification .toast-body {
    font-size: 0.875rem;
    padding: 0.75rem 1rem;
}

.toast-notification .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--danger); }
.toast-info { border-left-color: var(--accent); }

.toast-success .bi { color: var(--success); }
.toast-error .bi { color: var(--danger); }
.toast-info .bi { color: var(--accent); }

/* ========================================
   OPTIMISTIC REMOVE ANIMATION
   ======================================== */
.optimistic-remove {
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.3s ease;
    pointer-events: none;
    max-height: 0;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
    overflow: hidden;
}

/* ========================================
   SIDEBAR-OPEN BODY STATE (mobile)
   ======================================== */
body.sidebar-open {
    overflow: hidden;
}