html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
  background-color: #f8fafc;
}

/* Mathematics Tower Specific Styles */
:root {
    --amber-500: #F59E0B;
    --orange-600: #EA580C;
    --yellow-500: #EAB308;
    --green-500: #10B981;
    --red-500: #EF4444;
    --blue-500: #3B82F6;
    --gray-500: #6B7280;
    --purple-600: #9333EA;
}

.hero-section {
    background: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(245,158,11,0.8) 100%), 
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="g"><stop offset="0" stop-color="%23fff" stop-opacity="0.1"/><stop offset="1" stop-color="%23000" stop-opacity="0.1"/></radialGradient></defs><rect fill="url(%23g)" width="100%" height="100%"/></svg>');
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(245,158,11,0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) translateX(0px); }
    50% { transform: translateY(-20px) translateX(10px); }
}

.stats-section .card {
    transition: transform 0.3s ease-in-out;
}

.stats-section .card:hover {
    transform: translateY(-5px);
}

.footer {
    background-color: #f8f9fa !important;
    margin-top: 50px;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.hero-section img {
    border-radius: 15px !important;
}

.photos-section .card-img-top {
    transition: transform 0.3s ease-in-out;
}

.photos-section .card:hover .card-img-top {
    transform: scale(1.05);
}

.blog-section .card {
    transition: transform 0.3s ease-in-out;
}

.blog-section .card:hover {
    transform: translateY(-3px);
}

.cta-section {
    background: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(245,158,11,0.8) 100%), 
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="g"><stop offset="0" stop-color="%23fff" stop-opacity="0.1"/><stop offset="1" stop-color="%23000" stop-opacity="0.1"/></radialGradient></defs><rect fill="url(%23g)" width="100%" height="100%"/></svg>');
    color: white;
    position: relative;
}

/* Project Objectives Section */
.objectives-section {
    background: linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.8) 50%, transparent 100%);
}

/* UN SDGs Section */
.sdg-badge {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.sdg-4 { background-color: #C5192D; }
.sdg-8 { background-color: #A21942; }
.sdg-9 { background-color: #FD6925; }
.sdg-11 { background-color: #FD9D24; }
.sdg-17 { background-color: #19486A; }

/* Project Components Section */
.components-section {
    background: linear-gradient(135deg, var(--amber-500) 0%, var(--orange-600) 100%);
    color: white;
}

/* Investment Model Section */
.investment-model-section {
    background: radial-gradient(circle at center, var(--amber-500) 0%, var(--orange-600) 100%);
    color: white;
}

/* Package Color Classes */
.package-bronze { 
    border-color: var(--amber-500) !important;
    --bs-border-opacity: 1;
}
.package-bronze .btn { background: var(--amber-500); }

.package-silver { 
    border-color: var(--gray-500) !important;
    --bs-border-opacity: 1;
}
.package-silver .btn { background: var(--gray-500); }

.package-gold { 
    border-color: var(--yellow-500) !important;
    --bs-border-opacity: 1;
}
.package-gold .btn { background: var(--yellow-500); }

.package-platinum { 
    border-color: var(--purple-600) !important;
    --bs-border-opacity: 1;
}
.package-platinum .btn { background: var(--purple-600); }

/* Status Colors */
.text-success { color: var(--green-500) !important; }
.text-warning { color: var(--yellow-500) !important; }
.text-danger { color: var(--red-500) !important; }
.text-primary { color: var(--blue-500) !important; }

.bg-success { background-color: var(--green-500) !important; }
.bg-warning { background-color: var(--yellow-500) !important; }
.bg-danger { background-color: var(--red-500) !important; }
.bg-primary { background-color: var(--blue-500) !important; }

/* Gradient Buttons */
.btn-gradient-amber {
    background: linear-gradient(45deg, var(--amber-500), var(--orange-600));
    border: none;
    color: white;
}

.btn-gradient-amber:hover {
    background: linear-gradient(45deg, var(--orange-600), var(--amber-500));
    color: white;
}

/* Investment Package Cards */
.investment-card {
    border: 2px solid transparent;
    transition: all 0.3s ease-in-out;
}

.investment-card:hover {
    border-color: #007bff;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,123,255,0.15);
}

.investment-card.featured {
    border-color: #28a745;
    position: relative;
}

.investment-card.featured::before {
    content: "Most Popular";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: #28a745;
    color: white;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
}

/* Gallery Styles */
.gallery-grid {
    columns: 3;
    column-gap: 1rem;
}

.gallery-item {
    break-inside: avoid;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .gallery-grid {
        columns: 2;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        columns: 1;
    }
}

/* Blog Styles */
.blog-category-filter {
    margin-bottom: 2rem;
}

.blog-meta {
    color: #6c757d;
    font-size: 0.9rem;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Investment Package Styles */
.investment-card {
    transition: all 0.3s ease;
    border: none;
    overflow: hidden;
}

.investment-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15) !important;
}

.investment-card.featured {
    transform: scale(1.02);
    z-index: 10;
}

.bronze-header {
    background: linear-gradient(135deg, #CD7F32 0%, #A0522D 100%);
}

.silver-header {
    background: linear-gradient(135deg, #C0C0C0 0%, #808080 100%);
}

.gold-header {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
}

.platinum-header {
    background: linear-gradient(135deg, #E5E4E2 0%, #B8860B 100%);
}

.bronze-package {
    border-top: 4px solid #CD7F32;
}

.silver-package {
    border-top: 4px solid #C0C0C0;
}

.gold-package {
    border-top: 4px solid #FFD700;
    box-shadow: 0 15px 35px rgba(255, 215, 0, 0.2);
}

.platinum-package {
    border-top: 4px solid #E5E4E2;
}

.feature-item {
    display: flex;
    align-items: center;
    padding: 0.25rem 0;
    font-size: 0.9rem;
}

.btn-orange {
    background: linear-gradient(135deg, var(--orange) 0%, var(--amber) 100%);
    border: none;
    color: white;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-orange:hover {
    background: linear-gradient(135deg, var(--amber) 0%, var(--orange) 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(234, 88, 12, 0.3);
}

/* Investment Modal Styles */
.modal-content {
    border: none;
    border-radius: 1rem;
    overflow: hidden;
}

.modal-header {
    border-bottom: none;
    padding: 1.5rem 2rem 1rem;
}

.modal-body {
    padding: 1rem 2rem 2rem;
}

.modal-footer {
    border-top: none;
    padding: 1rem 2rem 2rem;
}

/* Package Icon Animations */
.package-icon i {
    transition: all 0.3s ease;
}

.investment-card:hover .package-icon i {
    transform: scale(1.1) rotate(5deg);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section {
        min-height: 60vh;
        text-align: center;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .stats-section .col-md-3 {
        margin-bottom: 2rem;
    }
    
    .investment-card.featured {
        transform: none;
    }
}

/* Contact Page Styles */
.contact-card {
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1) !important;
}

.contact-faq-card {
    transition: all 0.3s ease;
}

.contact-faq-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1) !important;
}

.map-container {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* Form Enhancements */
.form-control:focus,
.form-select:focus {
    border-color: var(--orange);
    box-shadow: 0 0 0 0.2rem rgba(234, 88, 12, 0.25);
}

.form-control-lg {
    border-radius: 0.5rem;
}

.form-select-lg {
    border-radius: 0.5rem;
}

/* Button Variations */
.btn-outline-orange {
    color: var(--orange);
    border-color: var(--orange);
}

.btn-outline-orange:hover {
    background-color: var(--orange);
    border-color: var(--orange);
    color: white;
}

/* Contact specific animations */
.contact-card .rounded-circle {
    transition: all 0.3s ease;
}

.contact-card:hover .rounded-circle {
    transform: scale(1.1);
}

/* Alert styling */
.alert-info {
    border-left: 4px solid var(--orange);
    background-color: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
    color: #333;
}

/* Enhanced card headers */
.card-header.bg-gradient-orange {
    background: linear-gradient(135deg, var(--orange) 0%, var(--amber) 100%) !important;
}

.card-header.bg-dark {
    background: linear-gradient(135deg, #212529 0%, #343a40 100%) !important;
}

/* AI Assistant Animation */
#ai-assistant button {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Centered Navbar Styles */
.navbar-collapse.justify-content-center {
    flex-direction: column;
}

.navbar-collapse.justify-content-center .navbar-nav {
    margin: 0 auto;
}

@media (min-width: 576px) {
    .navbar-collapse.justify-content-center {
        flex-direction: row;
    }
}