/* Enhanced CSS for Solar Sustainability Map Website */

:root {
    --primary-color: #2E86AB;
    --secondary-color: #A23B72;
    --accent-color: #F18F01;
    --success-color: #C73E1D;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #1a1a1a;
    --light-color: #f8f9fa;
    --iwmi-blue: #0066CC;
    --iwmi-green: #00A651;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-heavy: 0 15px 35px rgba(0,0,0,0.1);
}

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    scroll-behavior: smooth;
    background: #ffffff;
    overflow-x: hidden;
}

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@300;400;500;600;700;800&display=swap');

/* Enhanced Navigation Styles */
.navbar {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-light);
    background: var(--gradient-primary) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 0;
}

.navbar-brand {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.6rem;
    color: #fff !important;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
    color: #fff !important;
}

.navbar-brand img {
    height: 40px;
    width: auto;
    margin-right: 12px;
    filter: brightness(0) invert(1);
}

.nav-link {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    margin: 0 8px;
    padding: 8px 16px !important;
    border-radius: 25px;
    color: rgba(255, 255, 255, 0.9) !important;
}

.nav-link:hover {
    color: #fff !important;
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: -2px;
    left: 50%;
    background: linear-gradient(90deg, #fff, rgba(255, 255, 255, 0.7));
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

.nav-link:hover::after {
    width: 80%;
    left: 10%;
}

.navbar-toggler {
    border: none;
    padding: 4px 8px;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* Enhanced Hero Section */
.hero-section {
    background: var(--gradient-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    opacity: 0.8;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.4;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 1.3rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-image {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    max-height: 500px;
    border-radius: 20px;
    box-shadow: var(--shadow-heavy);
    animation: float 6s ease-in-out infinite;
    transition: transform 0.3s ease;
}

.hero-image img:hover {
    transform: scale(1.05);
}

.hero-icon {
    font-size: 15rem;
    color: rgba(255, 255, 255, 0.15);
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(2deg);
    }
}

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

@media (max-width: 768px) {
    .hero-buttons {
        justify-content: center;
    }
}

/* Section Styles */
section {
    padding: 80px 0;
}

.display-5 {
    font-weight: 700;
    margin-bottom: 1rem;
}

/* Enhanced Card Styles */
.card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-light);
}

.card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-heavy) !important;
    border-color: rgba(255, 255, 255, 0.2);
}

.card-body {
    position: relative;
    padding: 2rem;
}

.card-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.card-text {
    color: var(--text-light);
    line-height: 1.6;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Enhanced Button Styles */
.btn {
    border-radius: 50px;
    padding: 14px 32px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.1rem;
    font-weight: 700;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: var(--shadow-medium);
    border: 2px solid transparent;
}

.btn-primary:hover {
    background: var(--gradient-secondary);
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-heavy);
    color: #fff;
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-medium);
}

.btn-light {
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-dark);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-light);
}

.btn-light:hover {
    background: #fff;
    color: var(--text-dark);
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-heavy);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.9);
    color: rgba(255, 255, 255, 0.95);
    background: transparent;
    backdrop-filter: blur(10px);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
    color: #fff;
    transform: translateY(-3px) scale(1.02);
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.btn i {
    transition: transform 0.3s ease;
}

.btn:hover i {
    transform: scale(1.1);
}

/* Form Styles */
.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
}

/* Background Sections */
.bg-light {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%) !important;
}

/* Footer Styles */
footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%) !important;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-icon {
        font-size: 8rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .btn-lg {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .hero-icon {
        font-size: 6rem;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.8rem;
    }
    
    .btn-lg {
        padding: 12px 20px;
        font-size: 0.85rem;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Success Message */
.alert-success {
    border-radius: 10px;
    border: none;
    background: linear-gradient(45deg, #28a745, #20c997);
    color: white;
}

/* Scroll Indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 0.3s ease;
    z-index: 9999;
}