:root {
    --primary-color: #0F172A; /* Slate 900 */
    --secondary-color: #3B82F6; /* Blue 500 */
    --accent-color: #2563EB; /* Blue 600 */
    --accent-hover: #1D4ED8; /* Blue 700 */
    --text-main: #F8FAFC; /* Slate 50 */
    --text-muted: #94A3B8; /* Slate 400 */
    --bg-dark: #020617; /* Slate 950 */
    --glass-bg: rgba(15, 23, 42, 0.65);
    --glass-border: rgba(255, 255, 255, 0.1);
    --focus-ring: rgba(59, 130, 246, 0.5);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-dark);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(2, 6, 23, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    color: var(--text-main);
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    display: flex;
    gap: 0.3rem;
}

.logo-bold {
    font-weight: 700;
    color: var(--secondary-color);
}

.logo span:last-child {
    font-weight: 300;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-main);
}

/* Hero Section */
.hero-section {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    background: radial-gradient(circle at top right, #1e3a8a 0%, #020617 50%);
    overflow: hidden;
}

/* Background grid pattern */
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(var(--glass-border) 1px, transparent 1px),
                      linear-gradient(90deg, var(--glass-border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.15;
    pointer-events: none;
}

.wrapper {
    position: relative;
    z-index: 10;
    max-width: 900px;
    width: 100%;
}

/* Search Container with Glassmorphism */
.search-container {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeUp 0.8s ease-out forwards;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.search-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.search-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.search-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Search Form Grid */
.search-form {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-left: 0.25rem;
}

/* Custom Select styling */
.custom-select-wrapper {
    position: relative;
    width: 100%;
}

.custom-select-wrapper select {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    background-color: rgba(2, 6, 23, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 1rem 3rem 1rem 1.25rem;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    color: var(--text-main);
    cursor: pointer;
    transition: var(--transition);
}

.custom-select-wrapper select:hover:not(:disabled) {
    border-color: rgba(255, 255, 255, 0.3);
    background-color: rgba(2, 6, 23, 0.7);
}

.custom-select-wrapper select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px var(--focus-ring);
}

.custom-select-wrapper select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.custom-select-wrapper select option {
    background-color: var(--bg-dark);
    color: var(--text-main);
    padding: 12px;
}

.select-icon {
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-muted);
    transition: var(--transition);
}

.custom-select-wrapper select:focus + .select-icon {
    color: var(--secondary-color);
    transform: translateY(-50%) rotate(180deg);
}

/* Submit Button area */
.form-actions {
    grid-column: 1 / -1;
    margin-top: 1rem;
    display: flex;
    justify-content: center;
}

.btn-search {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-hover) 100%);
    color: white;
    border: none;
    border-radius: 9999px;
    padding: 1.1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.3);
    transition: var(--transition);
    width: 100%;
    justify-content: center;
    max-width: 300px;
}

.btn-search:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 20px -3px rgba(37, 99, 235, 0.4);
}

.btn-search:active {
    transform: translateY(1px);
}

/* Results Area */
.results-container {
    margin-top: 3rem;
    border-top: 1px solid var(--glass-border);
    padding-top: 2rem;
    transition: var(--transition);
}

.results-container.hidden {
    display: none;
}

.loader {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--secondary-color);
    animation: spin 1s ease-in-out infinite;
    margin: 2rem auto;
}

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

.results-content.hidden {
    display: none;
}

.result-card {
    background: rgba(2, 6, 23, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    animation: fadeUp 0.4s ease-out forwards;
}

.result-card h3 {
    color: var(--text-main);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

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

/* Responsive Design */
@media (max-width: 860px) {
    .search-form {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none; /* In a real app, use a hamburger menu */
    }
    
    .search-container {
        padding: 2rem;
    }
}