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

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --accent: #f5576c;
    --text: #2d3748;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --border: #e2e8f0;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: white;
}

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

/* Navigation */
.navbar {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text);
    margin: 5px 0;
    transition: 0.3s;
}

/* Hero Section - Updated for Building Image */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("../assets/images/A1.jpeg"); /* Your building image path */
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed; /* Optional: parallax effect */
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.7), rgba(118, 75, 162, 0.6)); /* Darkens image for text readability */
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: white;
    z-index: 2; /* Above overlay */
    position: relative;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    animation: fadeInUp 0.8s ease;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3); /* Improved readability */
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s backwards;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

/* Conference Rooms */
.conference {
    background: white;
}

.rooms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.room-card {
    background: linear-gradient(135deg, var(--bg-light) 0%, white 100%);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
    text-align: center;
}

.room-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.room-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text);
}

.room-details {
    text-align: left;
}

.room-details p {
    margin-bottom: 0.5rem;
    color: var(--text);
}

.room-details ul {
    list-style: none;
    margin: 1rem 0;
    padding-left: 0;
}

.room-details li {
    padding: 0.5rem 0;
    color: var(--text-light);
    padding-left: 1.5rem;
    position: relative;
}

.room-details li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.rate {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-top: 1.5rem;
}

/* Booking Section */
.booking {
    background: var(--bg-light);
}

.booking-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.booking-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

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

.submit-button {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.submit-button:active {
    transform: translateY(0);
}

/* Calendar */
.calendar-preview {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.calendar-preview h3 {
    margin-bottom: 1.5rem;
    color: var(--text);
}

.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all 0.3s;
}

.calendar-day:hover {
    border-color: var(--primary);
    background: var(--bg-light);
}

.calendar-day.available {
    color: var(--primary);
    font-weight: 600;
}

.calendar-day.booked {
    background: #fed7d7;
    color: #c53030;
    cursor: not-allowed;
}

.booking-info {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.booking-info p {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

/* Contact Section */
.contact {
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.info-item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
}

.info-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text);
    font-size: 1.1rem;
}

.info-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--text);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    section h2 {
        font-size: 1.8rem;
    }

    .booking-container {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
.booking-hero { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 100px 0; text-align: center; }
.booking-section { padding: 60px 0; }
.room-selector { text-align: center; margin-bottom: 40px; }
.room-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }
.room-btn { padding: 15px 25px; border: 2px solid #667eea; background: white; border-radius: 25px; cursor: pointer; transition: all 0.3s; }
.room-btn.active, .room-btn:hover { background: #667eea !important; color: white !important; }
.calendar-container { max-width: 700px; margin: 0 auto 40px; background: white; border-radius: 15px; padding: 30px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.calendar-header button { background: #667eea; color: white; border: none; padding: 12px 18px; border-radius: 8px; cursor: pointer; font-size: 16px; }
.calendar-day.available { background: #51cf66 !important; color: white !important; }
.calendar-day.booked { background: #ff6b6b !important; color: white !important; cursor: not-allowed !important; }
.calendar-day.today { border-color: #667eea !important; background: #f0f4ff !important; }
.calendar-day.selected { background: #667eea !important; color: white !important; }
.time-slots-container, .booking-form-container { max-width: 600px; margin: 0 auto 40px; background: white; border-radius: 15px; padding: 30px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.time-slot.available { border: 2px solid #51cf66; background: white; color: #51cf66; }
.time-slot.booked { background: #ff6b6b !important; color: white !important; border-color: #ff6b6b !important; }
.time-slot.selected { background: #667eea !important; color: white !important; border-color: #667eea !important; }
.booking-form input, .booking-form textarea { width: 100%; padding: 15px; margin-bottom: 20px; border: 2px solid #e0e6ed; border-radius: 10px; box-sizing: border-box; }
.booking-form input:focus, .booking-form textarea:focus { border-color: #667eea; outline: none; }
.submit-btn { width: 100%; padding: 20px; background: linear-gradient(135deg, #667eea, #764ba2); color: white; border: none; border-radius: 10px; font-size: 18px; font-weight: 600; cursor: pointer; }
.submit-btn:hover:not(:disabled) { transform: translateY(-2px); }
.submit-btn:disabled { background: #ccc; cursor: not-allowed; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
@media (max-width: 768px) { .room-buttons { flex-direction: column; align-items: center; } .calendar-grid { grid-template-columns: repeat(7, 35px) !important; } } }