/* SKY Cube Premium Design Stylesheet - Modern Light Theme */
:root {
    --bg-color: #f8fafc;
    --bg-gradient-1: #ffffff;
    --bg-gradient-2: #edf2f7;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(148, 163, 184, 0.12);
    --primary: #0066cc;
    --primary-glow: rgba(0, 102, 204, 0.15);
    --secondary: #00b4d8;
    --secondary-glow: rgba(0, 180, 216, 0.15);
    --accent: #10b981;
    --accent-glow: rgba(16, 185, 129, 0.15);
    --text-color: #1e293b;
    --text-muted: #64748b;
    --font-main: 'Outfit', sans-serif;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Background Gradients (Soft pastel glow for Light Mode) */
.bg-gradient-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    top: -200px;
    right: -100px;
    z-index: -1;
    filter: blur(80px);
    pointer-events: none;
}

.bg-gradient-glow-2 {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--secondary-glow) 0%, transparent 70%);
    bottom: 10%;
    left: -200px;
    z-index: -1;
    filter: blur(80px);
    pointer-events: none;
}

/* Header & Navigation (Light Translucent Header) */
header {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

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

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: 140px 20px 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.hero-content {
    flex: 1;
    max-width: 650px;
}

.hero h1 {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 25px;
    background: linear-gradient(to right, #0f172a 60%, #475569);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-weight: 300;
}

.btn-group {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 102, 204, 0.35);
}

.btn-secondary {
    background: #ffffff;
    color: var(--text-color);
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
}

.btn-secondary:hover {
    background: #f1f5f9;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.05);
}

/* Features Section */
.section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 15px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 35px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 102, 204, 0.15);
    box-shadow: 0 15px 35px rgba(0, 102, 204, 0.05);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 102, 204, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 25px;
    font-weight: 800;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
}

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

/* Halls Grid Section */
.halls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.hall-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}

.hall-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 180, 216, 0.2);
    box-shadow: 0 20px 40px rgba(0, 180, 216, 0.08);
}

.hall-img-placeholder {
    height: 220px;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--card-border);
    position: relative;
}

.hall-img-placeholder svg {
    width: 80px;
    height: 80px;
    opacity: 0.35;
    color: var(--primary);
}

.hall-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.2);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.hall-info {
    padding: 30px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.hall-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.hall-info p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 25px;
    flex-grow: 1;
}

.hall-specs {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding-top: 20px;
    border-top: 1px solid rgba(148, 163, 184, 0.15);
}

.spec-item {
    flex: 1;
}

.spec-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 3px;
}

.spec-value {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
}

/* Contact Section & Form Styling */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 50px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 50px;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.03);
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.detail-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 180, 216, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary);
    font-weight: 700;
}

.detail-text h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.detail-text p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
}

.form-control {
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 10px;
    padding: 15px 20px;
    color: var(--text-color);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition);
    width: 100%;
    max-width: 100%;
    min-width: 0;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

select.form-control {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19.5 8.25l-7.5 7.5-7.5-7.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 20px center;
    background-size: 16px;
    padding-right: 45px;
    cursor: pointer;
}

/* Custom styled inputs for numeric types */
input[type="number"].form-control::-webkit-inner-spin-button,
input[type="number"].form-control::-webkit-outer-spin-button {
    opacity: 1;
    cursor: pointer;
}

textarea.form-control {
    resize: none;
    height: 120px;
}

.alert {
    padding: 15px 20px;
    border-radius: 10px;
    font-size: 0.95rem;
    margin-bottom: 20px;
    display: none;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #065f46;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #991b1b;
}

/* Form Layout Helpers */
.form-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    min-width: 0;
}

.form-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    min-width: 0;
}

.form-section-divider {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid rgba(148, 163, 184, 0.15);
    padding-bottom: 8px;
    margin-top: 15px;
    margin-bottom: 5px;
    grid-column: 1 / -1;
}

/* Checkbox Styling */
.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    background: #ffffff;
    border: 1px solid rgba(148, 163, 184, 0.3);
    padding: 20px;
    border-radius: 12px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-color);
    transition: var(--transition);
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(148, 163, 184, 0.4);
    border-radius: 6px;
    outline: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
    background: #ffffff;
}

.checkbox-label input[type="checkbox"]:checked {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-label input[type="checkbox"]:checked::before {
    content: "✓";
    font-size: 0.85rem;
    color: #ffffff;
    font-weight: 800;
}

.checkbox-label:hover {
    color: var(--primary);
}

.checkbox-label:hover input[type="checkbox"] {
    border-color: var(--primary);
}

.form-message-textarea {
    height: 100px;
}

/* Footer */
footer {
    background: #ffffff;
    border-top: 1px solid var(--card-border);
    padding: 60px 20px;
    margin-top: 100px;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.01);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero {
        padding-top: 120px;
        flex-direction: column;
        text-align: center;
    }
    .hero h1 {
        font-size: 2.8rem;
    }
    .btn-group {
        justify-content: center;
    }
    .contact-container {
        padding: 30px;
    }
    .form-grid-2, .form-grid-3 {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}