:root {
  --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  --surface: rgba(255, 255, 255, 0.88);
  --glass-border: rgba(255, 255, 255, 0.45);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --primary: #4f46e5;
  --primary-glow: rgba(79, 70, 229, 0.22);
  --accent: #38bdf8;
  --success: #10b981;
  --danger: #ef4444;
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --input-bg: #fff;
  --input-border: #cbd5e1;
  --focus-ring: rgba(79, 70, 229, 0.2);
}

body.dark-mode {
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --surface: rgba(30, 41, 59, 0.82);
  --glass-border: rgba(255, 255, 255, 0.06);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #6366f1;
  --primary-glow: rgba(99, 102, 241, 0.22);
  --card-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.55);
  --input-bg: #0f172a;
  --input-border: #334155;
  --focus-ring: rgba(99, 102, 241, 0.25);
}

/* Domain Expiry Checker Specific Styles */

.page-hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
    gap: 16px;
    flex-wrap: wrap;
    background: none !important;
    text-align: left !important;
    padding: 0 !important;
    color: inherit !important;
}

.page-hero div h1 {
    font-size: 2.3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-main) !important;
    background: none !important;
    -webkit-text-fill-color: initial !important;
    line-height: 1.15;
}

.page-hero div p {
    color: var(--text-muted) !important;
    opacity: 1 !important;
    margin: 0 !important;
    max-width: none !important;
    font-size: 0.97rem;
    font-weight: 400;
}

/* Theme Toggle */
.theme-toggle {
    flex-shrink: 0;
    background: var(--surface);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
    box-shadow: var(--card-shadow);
    transition: all 0.25s;
}

.theme-toggle:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

/* Glass Card */
.card {
    background: var(--surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    margin-bottom: 28px;
    overflow: hidden;
    transition: box-shadow 0.3s;
}

/* Input */
label.input-label {
    display: block;
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 10px;
    color: var(--text-main);
}

label.input-label span {
    color: var(--text-muted);
    font-weight: 400;
}

textarea {
    width: 100%;
    padding: 14px 18px;
    font-family: 'Inter', monospace;
    font-size: 0.95rem;
    color: var(--text-main);
    background: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: 14px;
    resize: vertical;
    min-height: 150px;
    line-height: 1.7;
    transition: border-color 0.2s, box-shadow 0.2s;
}

textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.6;
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--focus-ring);
}

/* Loading Bar */
.loading-bar {
    height: 4px;
    width: 100%;
    background-color: var(--input-border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 20px;
    display: none;
}

.loading-progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s ease;
}

/* Buttons */
.action-buttons {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    color: #fff;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--primary-glow);
}

.btn-secondary {
    background: var(--input-bg);
    color: var(--text-main);
    border: 1px solid var(--input-border);
}

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

#filterInput {
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    flex-grow: 1;
    max-width: 300px;
}

#filterInput:focus {
    outline: none;
    border-color: var(--primary);
}

.copy-btn-copied {
    background: var(--success) !important;
    color: white !important;
    border-color: var(--success) !important;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    border-radius: 12px;
    margin-top: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    min-width: 900px;
}

thead tr th {
    background: var(--table-head-bg);
    color: var(--table-head-color);
    font-weight: 700;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 14px 16px;
    text-align: left;
    border-bottom: none;
    white-space: nowrap;
    position: sticky;
    top: 0;
}

thead tr th:first-child {
    border-radius: 12px 0 0 0;
}

thead tr th:last-child {
    border-radius: 0 12px 0 0;
}

th.sortable {
    cursor: pointer;
    user-select: none;
}

th.sortable::after {
    content: " \25B4\25BE";
    font-size: 0.6rem;
    opacity: 0.4;
    margin-left: 6px;
}

tbody tr td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--table-border);
    vertical-align: middle;
    color: var(--text-main);
}

tbody tr:nth-child(even) td {
    background: var(--table-stripe);
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover td {
    background: rgba(79, 70, 229, 0.06);
}

tbody tr td:first-child {
    font-weight: 600;
    color: var(--text-muted);
}

/* Row Status */
.expired td {
    background: rgba(239, 68, 68, 0.1) !important;
}

.valid td {
    background: rgba(16, 185, 129, 0.08) !important;
}

.processing {
    opacity: 0.6;
}

/* Definition Card */
.definitions-card {
    background: var(--surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 35px;
    box-shadow: var(--card-shadow);
    margin-top: 30px;
}

.definitions-card h2 {
    margin: 0 0 6px;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-main);
}

.definitions-card .card-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0 0 24px;
}

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

.def-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px;
    transition: transform 0.2s ease;
}

body.dark-mode .def-item {
    background: rgba(30, 41, 59, 0.5);
}

.def-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.07);
}

.def-badge {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 52px;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 800;
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
}

body.dark-mode .def-badge {
    background: rgba(99, 102, 241, 0.3);
    color: #818cf8;
}

.def-text strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 3px;
}

.def-text span {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.9rem;
    }

    .card,
    .definitions-card {
        padding: 20px;
        border-radius: 16px;
    }

    .page-hero {
        flex-direction: column;
    }

    .action-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    #filterInput {
        max-width: 100%;
    }

    .def-grid {
        grid-template-columns: 1fr;
    }
}