@import url('https://fonts.googleapis.com/css2?family=Prompt:ital,wght@0,300;0,400;0,500;0,600;0,700&display=swap');

:root {
    --primary: #9b111e;
    --primary-light: #c81d25;
    --primary-dark: #660000;
    --accent: #d4af37;
    --accent-light: #f3e5ab;
    --bg-color: #fcfcfc;
    --text-main: #2b2b2b;
    --text-light: #666666;
    --card-bg: #ffffff;
    --white: #ffffff;
    
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 25px rgba(0,0,0,0.15);
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Prompt', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

/* NAVBAR */
.navbar {
    background: rgba(155, 17, 30, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}
.nav-logo {
    color: var(--accent);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-logo i {
    font-size: 1.8rem;
}
.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}
.nav-links li a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    position: relative;
    transition: var(--transition);
}
.nav-links li a:hover {
    color: var(--accent);
}
.nav-links li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--accent);
    bottom: -5px;
    left: 0;
    transition: var(--transition);
}
.nav-links li a:hover::after {
    width: 100%;
}

/* HERO SECTION */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(102, 0, 0, 0.7), rgba(0, 0, 0, 0.8)), url('https://images.unsplash.com/photo-1549886290-72120db5b3e6?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
    margin-top: 0;
}
.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    background: linear-gradient(to right, var(--white), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-content p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px auto;
    color: var(--accent-light);
}
.btn-primary {
    background-color: var(--accent);
    color: var(--primary-dark);
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    border: 2px solid var(--accent);
    display: inline-block;
}
.btn-primary:hover {
    background-color: transparent;
    color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.3);
}

/* SECTION GLOBAL */
section {
    padding: 80px 5%;
}
.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 50px;
    position: relative;
    font-weight: 700;
}
.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background-color: var(--accent);
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

/* ACTIVITIES */
.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}
.activity-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
}
.activity-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}
.activity-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: var(--transition);
}
.activity-card:hover .activity-img {
    transform: scale(1.05);
}
.activity-content {
    padding: 25px;
    background: var(--white);
    position: relative;
    z-index: 1;
}
.activity-date {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 10px;
    display: block;
}
.activity-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-main);
}
.activity-desc {
    color: var(--text-light);
    font-size: 1rem;
}

/* COMMITTEE */
.committee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    text-align: center;
}
.member-card {
    background: var(--card-bg);
    padding: 30px 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border-top: 5px solid var(--accent);
}
.member-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.member-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px auto;
    border: 3px solid var(--primary-light);
    padding: 3px;
}
.member-name {
    font-size: 1.3rem;
    color: var(--primary-dark);
    margin-bottom: 5px;
}
.member-position {
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 10px;
}
.member-grade {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* FORM/REGISTER */
.register-section {
    background: #fff5f5;
}
.register-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(212, 175, 55, 0.3);
}
.form-group {
    margin-bottom: 25px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-main);
}
.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
    font-family: 'Prompt', sans-serif;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(155, 17, 30, 0.1);
}
.radio-group {
    display: flex;
    gap: 20px;
}
.radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}
.btn-submit {
    width: 100%;
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 15px;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}
.btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.alert {
    padding: 15px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
}
.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
.members-list-btn {
    display: block;
    text-align: center;
    margin-top: 20px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}
.members-list-btn:hover {
    text-decoration: underline;
}

/* FOOTER */
footer {
    background: var(--primary-dark);
    color: var(--white);
    text-align: center;
    padding: 30px 20px;
}
footer p {
    color: var(--accent-light);
    font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    section {
        padding: 50px 20px;
    }
}