@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --success-color: #10b981;
    --error-color: #ef4444;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 20%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
header {
    padding: 20px 0;
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    text-decoration: none;
}

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

/* Hero Section */
.hero {
    text-align: center;
    padding: 80px 0 40px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Main Tool Section */
.tool-container {
    max-width: 800px;
    margin: 40px auto;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(10px);
}

.input-group {
    display: grid;
    grid-template-columns: 2fr 1fr auto;
    gap: 15px;
    margin-bottom: 30px;
}

.input-wrapper {
    position: relative;
}

.input-wrapper label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.input-field {
    width: 100%;
    padding: 15px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.input-field:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.btn-test {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0 30px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    height: 52px; /* Match input height */
    align-self: end;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-test:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

/* Quick Select Grid */
.quick-select {
    margin-top: 30px;
}

.quick-select h3 {
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.ports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
}

.port-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.port-card:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.port-card .number {
    display: block;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 4px;
}

.port-card .service {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Results Area */
.result-area {
    margin-top: 30px;
    padding: 20px;
    border-radius: 12px;
    display: none; /* Hidden by default */
}

.result-area.open {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    display: block;
}

.result-area.closed {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    display: block;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.status-icon {
    font-size: 1.5rem;
}

.open .status-icon { color: var(--success-color); }
.closed .status-icon { color: var(--error-color); }

.result-details {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Ads Section */
.ads-container {
    max-width: 800px;
    margin: 40px auto;
    min-height: 100px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px dashed var(--glass-border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

/* Info Section */
.info-section {
    padding: 60px 0;
    background: rgba(0, 0, 0, 0.2);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.info-card {
    padding: 30px;
    background: var(--card-bg);
    border-radius: 15px;
    border: 1px solid var(--glass-border);
}

.info-card i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.info-card h3 {
    margin-bottom: 15px;
}

.info-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Footer */
footer {
    margin-top: auto;
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--glass-border);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .input-group { grid-template-columns: 1fr; }
    .btn-test { width: 100%; justify-content: center; }
}