:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: #8b8b9e;
    --text-muted: #6b6b7e;
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.3);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at top, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at bottom right, rgba(168, 85, 247, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
}

/* Header */
header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Hero */
.hero {
    text-align: center;
    padding: 4rem 0 3rem;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.75rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Search Box */
.search-box {
    display: flex;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto 1.5rem;
}

.input-wrapper {
    flex: 1;
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
}

.input-wrapper input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s;
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.search-box button {
    padding: 1rem 2rem;
    background: var(--gradient);
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.search-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--primary-glow);
}

.search-box button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

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

.your-ip span { color: var(--primary); font-weight: 500; }

/* Results */
.results { padding-bottom: 3rem; }

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.results-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.results-header span { color: var(--primary); }

.meta-info {
    display: flex;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.card-body { padding: 1.5rem; }

.section-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 1.5rem 0 1rem;
    font-weight: 500;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.info-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    border: 1px solid var(--border);
}

.info-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.info-value {
    font-size: 0.95rem;
    color: var(--text-primary);
    word-break: break-all;
}

.info-value.success { color: var(--success); }
.info-value.warning { color: var(--warning); }
.info-value.danger { color: var(--danger); }

/* DNS Records */
.dns-record {
    margin-bottom: 1rem;
}

.dns-record-type {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary);
    color: white;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.dns-record-values {
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    font-family: 'Monaco', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.dns-record-values div {
    padding: 0.25rem 0;
    border-bottom: 1px solid var(--border);
}

.dns-record-values div:last-child { border: none; }

/* Propagation */
.propagation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.propagation-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    border: 1px solid var(--border);
}

.propagation-status {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.propagation-status.success { background: rgba(16, 185, 129, 0.2); }
.propagation-status.error { background: rgba(239, 68, 68, 0.2); }

.propagation-info { flex: 1; }

.propagation-name {
    font-weight: 500;
    font-size: 0.9rem;
}

.propagation-location {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* External Links */
.external-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.external-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.external-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--border);
}

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

/* Utilities */
.hidden { display: none !important; }

/* Responsive */
@media (max-width: 600px) {
    .search-box {
        flex-direction: column;
    }
    
    .results-header {
        flex-direction: column;
        text-align: center;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}