/* === Bayo Tools - DNS Checker Modern Design System === */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

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

:root {
    --bg-body: #0a0d14;
    --bg-card: rgba(18, 24, 38, 0.75);
    --bg-card-hover: rgba(26, 34, 53, 0.85);
    --bg-surface: #121826;
    --bg-surface-2: #1a2236;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(99, 102, 241, 0.4);

    --text-main: #f3f4f6;
    --text-muted: #94a3b8;
    --text-dim: #64748b;

    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-glow: rgba(99, 102, 241, 0.25);
    --cyan: #06b6d4;
    --emerald: #10b981;
    --amber: #f59e0b;
    --rose: #f43f5e;

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --error: #f43f5e;
    --error-bg: rgba(244, 63, 94, 0.1);
    --info: #38bdf8;
    --info-bg: rgba(56, 189, 248, 0.1);

    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Ambient Background Glow */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.glow-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.18;
}

.glow-1 {
    width: 520px;
    height: 520px;
    background: #6366f1;
    top: -100px;
    right: 15%;
}

.glow-2 {
    width: 440px;
    height: 440px;
    background: #06b6d4;
    top: 40%;
    left: -80px;
}

.glow-3 {
    width: 420px;
    height: 420px;
    background: #8b5cf6;
    bottom: -80px;
    right: 10%;
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 32px 32px;
}

.page-wrapper {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Navbar === */
.navbar {
    padding: 18px 0;
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 13, 20, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
}

.logo-icon-box {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.2));
    border: 1px solid rgba(99, 102, 241, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 16px -4px var(--primary-glow);
    transition: var(--transition);
    flex-shrink: 0;
}

.brand-logo:hover .logo-icon-box {
    transform: scale(1.05);
    border-color: var(--primary-light);
}

.logo-title {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.logo-title .highlight {
    background: linear-gradient(135deg, #818cf8 0%, #6366f1 50%, #38bdf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-badge {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 6px;
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.3);
    letter-spacing: 0.4px;
    white-space: nowrap;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-dim);
    display: block;
    margin-top: -2px;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-1px);
}

.nav-btn.active {
    color: #ffffff;
    background: rgba(99, 102, 241, 0.16);
    border-color: rgba(99, 102, 241, 0.4);
}

.nav-btn svg {
    flex-shrink: 0;
}

/* === Hero Section === */
.hero {
    padding: 48px 0 28px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 50px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.25);
    color: #a5b4fc;
    font-size: 0.84rem;
    font-weight: 600;
    margin-bottom: 20px;
    backdrop-filter: blur(8px);
}

.hero-title {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.18;
    letter-spacing: -1px;
    margin-bottom: 14px;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 30%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-accent {
    background: linear-gradient(135deg, #818cf8 0%, #6366f1 50%, #38bdf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 680px;
    margin: 0 auto 34px;
}

/* === Search Bar Card === */
.search-box-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 10px;
    box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    max-width: 740px;
    margin: 0 auto 20px;
    transition: var(--transition);
}

.search-box-card:focus-within {
    border-color: var(--primary);
    box-shadow: 0 16px 40px -12px var(--primary-glow);
}

.search-form {
    display: flex;
    gap: 8px;
    align-items: center;
    width: 100%;
}

.input-wrapper {
    display: flex;
    align-items: center;
    flex: 1;
    position: relative;
    padding-left: 14px;
}

.search-icon {
    width: 22px;
    height: 22px;
    color: var(--text-dim);
    flex-shrink: 0;
    margin-right: 12px;
}

#domain-input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: #ffffff;
    font-size: 1.05rem;
    font-family: var(--font-mono);
    font-weight: 500;
    padding: 12px 0;
}

#domain-input::placeholder {
    color: var(--text-dim);
    font-family: var(--font-main);
    font-size: 0.95rem;
}

.btn-check {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: #ffffff;
    border: none;
    font-size: 0.95rem;
    font-weight: 700;
    font-family: var(--font-main);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 20px -4px var(--primary-glow);
    white-space: nowrap;
}

.btn-check:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px -4px var(--primary-glow);
    filter: brightness(1.1);
}

.btn-check:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.spinner {
    width: 18px;
    height: 18px;
    animation: spin 0.8s linear infinite;
}

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

/* Quick Examples */
.examples-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 36px;
}

.examples-label {
    font-size: 0.82rem;
    color: var(--text-dim);
    margin-right: 4px;
}

.example-chip {
    padding: 5px 12px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.82rem;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.example-chip:hover {
    color: var(--primary-light);
    border-color: rgba(99, 102, 241, 0.35);
    background: rgba(99, 102, 241, 0.1);
}

/* === Results Container === */
.results {
    margin-bottom: 60px;
}

/* Summary Bar */
.summary-bar {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    padding: 16px 20px;
    margin-bottom: 24px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
}

.summary-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
}

.summary-dot.success { background: var(--success); box-shadow: 0 0 8px var(--success); }
.summary-dot.warning { background: var(--warning); box-shadow: 0 0 8px var(--warning); }
.summary-dot.error { background: var(--error); box-shadow: 0 0 8px var(--error); }
.summary-dot.info { background: var(--info); box-shadow: 0 0 8px var(--info); }

/* === Domain Comparison Overview === */
.domain-comparison-card {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin-bottom: 24px;
    backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
    animation: fadeUp 0.35s ease both;
}

.domain-comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #6366f1 0%, #06b6d4 50%, #10b981 100%);
}

.domain-col {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.domain-col-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.domain-type-badge {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    padding: 3px 8px;
    border-radius: 6px;
    font-family: var(--font-mono);
}

.domain-type-badge.root {
    background: rgba(99, 102, 241, 0.18);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.35);
}

.domain-type-badge.www {
    background: rgba(6, 182, 212, 0.18);
    color: #67e8f9;
    border: 1px solid rgba(6, 182, 212, 0.35);
}

.domain-col-status {
    font-size: 0.78rem;
    font-weight: 600;
}

.domain-col-status.status-ok { color: var(--emerald); }
.domain-col-status.status-warning { color: var(--amber); }
.domain-col-status.status-error { color: var(--rose); }

.domain-col-name {
    font-size: 1.22rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: #ffffff;
    word-break: break-all;
}

.domain-col-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.84rem;
    color: var(--text-muted);
}

.domain-col-details .detail-item {
    display: flex;
    align-items: center;
    gap: 8px;
    word-break: break-all;
}

.domain-col-details .detail-item strong {
    color: var(--text-dim);
    font-size: 0.75rem;
    text-transform: uppercase;
    min-width: 65px;
    letter-spacing: 0.4px;
}

.domain-divider {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 0 10px;
}

.divider-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--bg-surface-2);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
}

.divider-text {
    font-size: 0.68rem;
    font-family: var(--font-mono);
    color: var(--text-dim);
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.5px;
}

/* === WWW Section Card Components === */
.www-banner {
    padding: 16px 22px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.www-banner.success {
    background: rgba(16, 185, 129, 0.07);
    border-left: 3px solid var(--emerald);
    color: #e2e8f0;
}

.www-banner.warning {
    background: rgba(245, 158, 11, 0.08);
    border-left: 3px solid var(--amber);
    color: #fed7aa;
}

.www-banner .banner-title {
    font-weight: 700;
    font-size: 0.95rem;
    color: #ffffff;
}

.www-banner .banner-desc {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.5;
}

.www-banner .banner-hint {
    margin-top: 6px;
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.84rem;
    color: #fde68a;
    line-height: 1.6;
}

.www-banner .banner-hint code {
    background: rgba(255, 255, 255, 0.12);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    color: #ffffff;
}

.sub-table-header {
    padding: 10px 22px;
    background: rgba(10, 13, 20, 0.45);
    font-size: 0.78rem;
    font-weight: 700;
    color: #a5b4fc;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.sub-table-header::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cyan);
}

.header-status-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    font-family: var(--font-mono);
    margin-left: auto;
    margin-right: 12px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.header-status-badge.ok {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.header-status-badge.warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Results Grid */
.results-grid {
    display: grid;
    gap: 20px;
}

/* Section Card */
.section-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    backdrop-filter: blur(12px);
    transition: var(--transition);
    animation: fadeUp 0.35s ease both;
}

.section-card:hover {
    border-color: rgba(255, 255, 255, 0.14);
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 22px;
    background: rgba(10, 13, 20, 0.5);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.section-header:hover {
    background: rgba(99, 102, 241, 0.08);
}

.section-badge {
    background: rgba(99, 102, 241, 0.18);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.35);
    font-size: 0.72rem;
    font-weight: 700;
    font-family: var(--font-mono);
    padding: 4px 10px;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

.section-title {
    font-size: 1.02rem;
    font-weight: 700;
    flex: 1;
    color: #ffffff;
}

.section-toggle {
    color: var(--text-dim);
    transition: transform 0.25s ease;
    width: 20px;
    height: 20px;
}

.section-card.collapsed .section-toggle {
    transform: rotate(-90deg);
}

.section-card.collapsed .section-body {
    display: none;
}

.section-body {
    padding: 0;
    overflow-x: auto;
}

/* === DNS Table === */
.dns-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.dns-table th {
    text-align: left;
    padding: 12px 22px;
    color: var(--text-dim);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 13, 20, 0.3);
}

.dns-table td {
    padding: 14px 22px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    vertical-align: middle;
    word-break: break-all;
    color: var(--text-main);
}

.dns-table tr:last-child td {
    border-bottom: none;
}

.dns-table tr:hover td {
    background: rgba(99, 102, 241, 0.04);
}

.dns-table .mono {
    font-family: var(--font-mono);
    font-size: 0.88rem;
    color: #c7d2fe;
}

/* === Analysis Items === */
.analysis-list {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.analysis-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    line-height: 1.5;
    border: 1px solid transparent;
}

.analysis-item.success {
    background: var(--success-bg);
    border-color: rgba(16, 185, 129, 0.25);
    color: #34d399;
}

.analysis-item.warning {
    background: var(--warning-bg);
    border-color: rgba(245, 158, 11, 0.25);
    color: #fbbf24;
}

.analysis-item.error {
    background: var(--error-bg);
    border-color: rgba(244, 63, 94, 0.25);
    color: #fb7185;
}

.analysis-item.info {
    background: var(--info-bg);
    border-color: rgba(56, 189, 248, 0.25);
    color: #38bdf8;
}

.analysis-icon {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 3px;
}

.analysis-category {
    font-weight: 700;
    margin-right: 4px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

/* === Error Box === */
.error-box {
    background: var(--error-bg);
    border: 1px solid rgba(244, 63, 94, 0.3);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    text-align: center;
    color: #fb7185;
    font-weight: 600;
    margin-bottom: 24px;
    backdrop-filter: blur(12px);
}

/* === Skeletons === */
.skeleton-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.skeleton-line {
    height: 14px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    margin-bottom: 12px;
}

.skeleton-line:last-child { margin-bottom: 0; }
.skeleton-line.w60 { width: 60%; }
.skeleton-line.w80 { width: 80%; }
.skeleton-line.w40 { width: 40%; }

/* === Footer === */
.footer {
    border-top: 1px solid var(--border-color);
    background: rgba(10, 13, 20, 0.8);
    padding: 40px 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 20px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light);
}

/* === Responsive === */
@media (max-width: 900px) {
    .nav-content {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
    }
    .nav-links {
        width: 100%;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 6px;
        -webkit-overflow-scrolling: touch;
    }
    .nav-btn {
        padding: 6px 12px;
        font-size: 0.82rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 36px 0 20px;
    }
    .search-form {
        flex-direction: column;
    }
    .input-wrapper {
        width: 100%;
        padding-left: 10px;
    }
    .btn-check {
        width: 100%;
        justify-content: center;
    }
    .dns-table th, .dns-table td {
        padding: 10px 14px;
    }
    .domain-comparison-card {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 18px;
    }
    .domain-divider {
        padding: 8px 0;
        border-top: 1px dashed var(--border-color);
        border-bottom: 1px dashed var(--border-color);
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}