/* ==========================================
   Email System - Dark Mode Theme
   ========================================== */

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a2e;
    --bg-card: #16213e;
    --bg-input: #0f3460;
    --bg-hover: #1a1a3e;
    --text-primary: #e4e6eb;
    --text-secondary: #b0b3b8;
    --text-muted: #6c757d;
    --accent: #533483;
    --accent-hover: #6a42a0;
    --success: #00c897;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    --border: #2d2d44;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: #5dade2;
}

/* ========== LOGIN PAGE ========== */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a2e 50%, #16213e 100%);
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 8px 32px var(--shadow);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 8px;
    font-size: 28px;
    color: var(--text-primary);
}

.login-box .subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 14px;
}

.login-box .logo {
    text-align: center;
    font-size: 48px;
    margin-bottom: 16px;
}

/* ========== FORMS ========== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 15px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(83, 52, 131, 0.3);
}

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

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23b0b3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

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

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    color: #fff;
}

.btn-primary {
    background: var(--accent);
}

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

.btn-success {
    background: var(--success);
}

.btn-success:hover {
    background: #00b386;
    color: #fff;
}

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

.btn-danger:hover {
    background: #c0392b;
    color: #fff;
}

.btn-warning {
    background: var(--warning);
    color: #1a1a2e;
}

.btn-info {
    background: var(--info);
}

.btn-info:hover {
    background: #2980b9;
    color: #fff;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

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

.btn-block {
    width: 100%;
    justify-content: center;
    padding: 14px;
    font-size: 16px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

/* ========== LAYOUT ========== */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
    font-size: 20px;
    color: var(--text-primary);
}

.sidebar-header small {
    color: var(--text-muted);
    font-size: 12px;
}

.sidebar-menu {
    list-style: none;
    padding: 12px 0;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    font-size: 15px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-menu li a:hover,
.sidebar-menu li a.active {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-left-color: var(--accent);
}

.sidebar-menu li a .icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

/* Main Content */
.main-content {
    margin-left: 260px;
    flex: 1;
    padding: 0;
    min-height: 100vh;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar h1 {
    font-size: 22px;
    font-weight: 600;
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.content-area {
    padding: 32px;
}

/* ========== CARDS ========== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px var(--shadow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 {
    font-size: 18px;
    font-weight: 600;
}

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-icon.purple { background: rgba(83, 52, 131, 0.2); color: #a37bdb; }
.stat-icon.green { background: rgba(0, 200, 151, 0.2); color: var(--success); }
.stat-icon.blue { background: rgba(52, 152, 219, 0.2); color: var(--info); }
.stat-icon.orange { background: rgba(243, 156, 18, 0.2); color: var(--warning); }

.stat-info h4 {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.2;
}

.stat-info p {
    color: var(--text-secondary);
    font-size: 13px;
}

/* ========== TABLE ========== */
.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

table th {
    background: rgba(83, 52, 131, 0.15);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

table tr:hover {
    background: var(--bg-hover);
}

table td {
    font-size: 14px;
}

/* ========== BADGES ========== */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: rgba(0, 200, 151, 0.15);
    color: var(--success);
}

.badge-danger {
    background: rgba(231, 76, 60, 0.15);
    color: var(--danger);
}

.badge-warning {
    background: rgba(243, 156, 18, 0.15);
    color: var(--warning);
}

.badge-info {
    background: rgba(52, 152, 219, 0.15);
    color: var(--info);
}

/* ========== ALERTS ========== */
.alert {
    padding: 14px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: rgba(0, 200, 151, 0.1);
    border: 1px solid rgba(0, 200, 151, 0.3);
    color: var(--success);
}

.alert-danger {
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.3);
    color: var(--danger);
}

.alert-warning {
    background: rgba(243, 156, 18, 0.1);
    border: 1px solid rgba(243, 156, 18, 0.3);
    color: var(--warning);
}

.alert-info {
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.3);
    color: var(--info);
}

/* ========== DNS RECORDS TABLE ========== */
.dns-record-row {
    display: grid;
    grid-template-columns: 80px 120px 1fr 60px;
    gap: 12px;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-primary);
    border-radius: 8px;
    margin-bottom: 8px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
}

.dns-record-row .type {
    font-weight: 700;
    color: var(--info);
}

.dns-record-row .name {
    color: var(--warning);
}

.dns-record-row .value {
    color: var(--text-primary);
    word-break: break-all;
}

.copy-btn {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

.copy-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ========== MODAL ========== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 200;
    justify-content: center;
    align-items: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.modal h2 {
    margin-bottom: 24px;
    font-size: 20px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
}

/* ========== EMAIL LIST ========== */
.email-item {
    display: grid;
    grid-template-columns: 40px 200px 1fr 120px;
    gap: 12px;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.2s;
}

.email-item:hover {
    background: var(--bg-hover);
}

.email-date {
    position: relative;
    text-align: right;
}

.email-date-text {
    font-size: 13px;
    color: var(--text-muted);
    transition: opacity 0.15s;
}

.email-delete-btn {
    display: none;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.email-item:hover .email-date-text {
    opacity: 0;
}

.email-item:hover .email-delete-btn {
    display: block;
}

.email-delete-btn .btn-sm {
    padding: 2px 6px;
    font-size: 12px;
    line-height: 1.4;
}

.email-item:hover {
    background: var(--bg-hover);
}

.email-item.unread {
    background: rgba(83, 52, 131, 0.08);
}

.email-item.unread .email-subject {
    font-weight: 600;
    color: var(--text-primary);
}

.email-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.email-from {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.email-subject {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.email-date {
    font-size: 12px;
    color: var(--text-muted);
    text-align: right;
}

/* ========== SEARCH ========== */
.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0 12px;
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    padding: 10px 0;
    font-size: 14px;
    width: 250px;
    outline: none;
}

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

/* ========== PAGINATION ========== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.pagination a,
.pagination span {
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 14px;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

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

.pagination .active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ========== EMPTY STATE ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.empty-state h3 {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

/* ========== FLEX/GRID HELPERS ========== */
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; justify-content: center; align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-right { text-align: right; }
.text-center { text-align: center; }

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-area {
        padding: 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .email-item {
        grid-template-columns: 1fr;
        gap: 4px;
    }
    
    .dns-record-row {
        grid-template-columns: 1fr;
    }
    
    .top-bar {
        padding: 12px 16px;
    }
    
    .hamburger {
        display: block;
    }
}

@media (min-width: 769px) {
    .hamburger {
        display: none;
    }
}

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

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}