/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Barracuda Brand Colors - Official Brand Guidelines 3.6 */
    /* Primary */
    --primary-color: #0088CE;        /* Barracuda Blue */
    --secondary-color: #005F7C;      /* Marine Blue */
    --accent-color: #0CF2A5;         /* Neon Green - for CTAs */
    --neon-blue: #00EDFF;            /* Neon Blue */
    --seafoam-green: #04B29D;        /* Seafoam Green */
    --kelp-green: #23664C;           /* Kelp Green */
    
    /* Dark theme backgrounds */
    --dark-bg: #001129;              /* Deeper Ocean */
    --darker-bg: #191919;            /* Barracuda Black */
    --card-bg: rgba(0, 17, 41, 0.6); /* Deeper Ocean with transparency */
    
    /* Text colors */
    --text-white: #F5F5FA;           /* Breaker White */
    --text-light: #00EDFF;           /* Neon Blue for highlights */
    --text-muted: #D4D5D4;           /* Scale Gray */
    
    /* Border color */
    --border-color: rgba(0, 95, 124, 0.3); /* Marine Blue with transparency */
    
    /* System colors */
    --success-color: #0CF2A5;        /* Neon Green */
    --error-color: #dc3545;
}

body {
    /* Barracuda Brand Typography: Satoshi (primary), Aptos (Microsoft fallback) */
    /* Using system fonts as fallback since Satoshi font files not available */
    font-family: 'Satoshi', 'Aptos', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-white);
    background-color: var(--darker-bg);
}

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

/* Header */
.header {
    background-color: var(--darker-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.logo a {
    display: block;
    line-height: 0;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: opacity 0.3s ease;
}

.logo-img:hover {
    opacity: 0.8;
}

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

.nav a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    color: var(--text-white);
    padding: 6rem 0;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(0, 136, 206, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 136, 206, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-white);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--card-bg);
    border-color: var(--text-white);
    color: var(--text-white);
}

.btn-submit {
    width: 100%;
    max-width: 300px;
    margin-top: 1rem;
}

/* Sections */
.categories,
.why-campus,
.contact-section {
    padding: 4rem 0;
}

.categories {
    background-color: var(--darker-bg);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-white);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Campus Upgrade Notice */
.campus-notice {
    max-width: 920px;
    margin: 2rem auto 0;
    padding: 2.25rem;
    background: linear-gradient(180deg, rgba(0, 17, 41, 0.96) 0%, rgba(0, 17, 41, 0.82) 100%);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.32);
}

.campus-notice-notes {
    display: grid;
    gap: 0.75rem;
    margin-top: 0.25rem;
}

.campus-notice-note {
    position: relative;
    padding: 0.95rem 1rem;
    border-radius: 10px;
    background: rgba(0, 17, 41, 0.55);
    border: 1px solid rgba(0, 95, 124, 0.22);
    color: var(--text-muted);
    text-align: left;
    line-height: 1.55;
    border-left: 3px solid var(--accent-color);
}

.campus-notice-note::before {
    content: none;
}

.campus-notice-note a {
    color: var(--neon-blue);
    font-weight: 600;
    text-decoration: none;
}

.campus-notice-note + .campus-notice-note {
    margin-top: 0;
}

.campus-notice-note a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.category-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 136, 206, 0.2);
    border-color: var(--primary-color);
}

.category-card h3 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.category-card p {
    color: var(--text-muted);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 136, 206, 0.2);
    border-color: var(--primary-color);
}

.feature h3 {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.feature p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Contact Form */
.contact-section {
    background-color: var(--darker-bg);
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-white);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--darker-bg);
    color: var(--text-white);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 136, 206, 0.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--error-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.field-error {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

.form-message {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Footer */
.footer {
    background-color: var(--darker-bg);
    color: var(--text-white);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-col h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: var(--text-white);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .hero {
        padding: 4rem 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .category-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading State */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}