/* CSS Variables - Tetrada Color Scheme */
:root {
    /* Primary Tetrada Colors */
    --primary-color: #2563eb;
    --secondary-color: #dc2626;
    --accent-color: #059669;
    --tertiary-color: #7c3aed;
    
    /* Darker variations */
    --primary-dark: #1d4ed8;
    --secondary-dark: #b91c1c;
    --accent-dark: #047857;
    --tertiary-dark: #6d28d9;
    
    /* Eco-minimalism inspired colors */
    --natural-green: #10b981;
    --earth-brown: #92400e;
    --sky-blue: #0ea5e9;
    --stone-gray: #6b7280;
    
    /* Neutral colors */
    --white: #ffffff;
    --black: #000000;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-heading: 'Manrope', sans-serif;
    --font-body: 'Rubik', sans-serif;
    
    /* Spacing */
    --section-padding: 5rem 0;
    --container-padding: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--tertiary-color));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    --gradient-overlay: linear-gradient(135deg, rgba(37, 99, 235, 0.8), rgba(124, 58, 237, 0.8));
    --gradient-natural: linear-gradient(135deg, var(--natural-green), var(--sky-blue));
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Global Styles */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.display-1, .display-2, .display-3, .display-4 {
    font-family: var(--font-heading);
    font-weight: 700;
}

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

/* Section Titles */
.section-title {
    color: var(--gray-900);
    position: relative;
    text-align: center;
    margin-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
}

.section-subtitle {
    color: var(--gray-600);
    text-align: center;
    font-weight: 400;
}

/* Global Button Styles */
.btn {
    font-family: var(--font-body);
    font-weight: 500;
    border-radius: var(--radius-lg);
    padding: 0.75rem 2rem;
    transition: all var(--transition-normal);
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.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 var(--transition-slow);
    z-index: 1;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: var(--white);
}

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

.btn-outline-light:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Micro-interactions */
.micro-interaction {
    transition: all var(--transition-normal);
    position: relative;
}

.micro-interaction:hover {
    transform: translateY(-2px);
}

.micro-interaction:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Header Styles */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
    z-index: 1000;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-lg);
}

.navbar-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--primary-color);
    text-decoration: none;
}

.brand-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    padding: 0.75rem 1rem;
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

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

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

.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
}

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

/* Hero Section */
.hero-section {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    z-index: 2;
}

.hero-title {
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    color: var(--white);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-buttons {
    animation: fadeInUp 1s ease-out 0.4s both;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: var(--white);
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: -3px;
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
}

/* Mission Section */
.mission-section {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.mission-card {
    transition: all var(--transition-normal);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.mission-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.mission-card .card-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mission-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.mission-card .card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Workshops Section */
.workshops-section {
    padding: var(--section-padding);
}

.workshop-card {
    transition: all var(--transition-normal);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.workshop-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.workshop-card .card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.workshop-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.workshop-card:hover .card-image img {
    transform: scale(1.1);
}

.workshop-card .card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.workshop-features {
    margin-top: 1rem;
}

.badge {
    border-radius: var(--radius-md);
    font-weight: 500;
    padding: 0.5rem 1rem;
}

.badge.bg-primary {
    background: var(--gradient-primary) !important;
}

.badge.bg-secondary {
    background: var(--gradient-secondary) !important;
}

/* Research Section */
.research-section {
    padding: var(--section-padding);
    background: var(--white);
}

.research-content {
    padding: 2rem 0;
}

.research-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.research-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-slow);
}

.research-image img:hover {
    transform: scale(1.02);
}

.research-accordion .accordion-item {
    border: none;
    margin-bottom: 1rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.research-accordion .accordion-button {
    background: var(--gray-50);
    border: none;
    font-weight: 600;
    color: var(--gray-800);
    padding: 1.25rem 1.5rem;
}

.research-accordion .accordion-button:not(.collapsed) {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: none;
}

.research-accordion .accordion-body {
    padding: 1.5rem;
    background: var(--white);
}

/* Insights Section */
.insights-section {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.insight-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.insight-card .card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.insight-toggle {
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Switch Toggle Styles */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--gray-300);
    transition: var(--transition-normal);
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: var(--white);
    transition: var(--transition-normal);
    border-radius: 50%;
}

input:checked + .slider {
    background: var(--gradient-primary);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.switch-label {
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* Resources Section */
.resources-section {
    padding: var(--section-padding);
    background: var(--white);
}

.resource-category h3 {
    color: var(--gray-800);
    margin-bottom: 1.5rem;
}

.resource-link {
    transition: all var(--transition-normal);
    background: var(--gray-50);
    border: 1px solid var(--gray-200) !important;
    border-radius: var(--radius-lg);
    color: var(--gray-700);
    display: block;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.resource-link:hover {
    background: var(--white);
    border-color: var(--primary-color) !important;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--primary-color);
}

.resource-link h4 {
    color: var(--gray-800);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.resource-link:hover h4 {
    color: var(--primary-color);
}

/* Portfolio Section */
.portfolio-section {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.portfolio-card {
    transition: all var(--transition-normal);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.portfolio-card .card-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.portfolio-card .card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.portfolio-category {
    margin-bottom: 1rem;
}

.portfolio-metrics {
    display: flex;
    justify-content: space-around;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-heading);
}

.metric-label {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 500;
}

/* Contact Section */
.contact-section {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.contact-form-wrapper {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    background: var(--white);
}

.contact-form .form-label {
    color: var(--gray-800);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-control, .form-select {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-control-lg {
    padding: 1rem 1.25rem;
    font-size: 1.1rem;
}

.form-select-lg {
    padding: 1rem 1.25rem;
    font-size: 1.1rem;
}

/* Footer */
.footer-section {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--section-padding);
}

.footer-brand h3 {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.footer-links h4 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--gray-400);
    transition: color var(--transition-normal);
}

.footer-links a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.footer-social h4 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.social-links a {
    color: var(--gray-400);
    transition: all var(--transition-normal);
    font-weight: 500;
    font-size: 1.1rem;
}

.social-links a:hover {
    color: var(--primary-color);
    text-decoration: none;
    transform: translateY(-2px);
}

/* Success Page Styles */
.success-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    padding: 2rem 0;
}

.success-content {
    text-align: center;
    background: var(--white);
    padding: 3rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    margin: 0 auto;
}

.success-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 3rem;
    color: var(--white);
}

/* Privacy and Terms Pages */
.content-page {
    padding-top: 100px;
    padding-bottom: var(--section-padding);
    background: var(--white);
}

.content-wrapper {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 3rem;
    margin: 2rem 0;
}

.content-wrapper h1 {
    color: var(--gray-900);
    margin-bottom: 2rem;
    text-align: center;
}

.content-wrapper h2 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-wrapper p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.content-wrapper ul {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.content-wrapper li {
    margin-bottom: 0.5rem;
    color: var(--gray-600);
}

/* Cookie Popup */
.cookie-popup {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-top: 3px solid var(--primary-color);
}

.cookie-content p {
    color: var(--white);
    margin-bottom: 1rem;
}

#acceptCookies {
    background: var(--gradient-primary);
    border: none;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-lg);
    color: var(--white);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

#acceptCookies:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll-dependent effects */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --section-padding: 3rem 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .btn-lg {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }
    
    .portfolio-metrics {
        flex-direction: column;
        gap: 1rem;
    }
    
    .insight-toggle {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .social-links {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .contact-form-wrapper,
    .content-wrapper,
    .success-content {
        padding: 2rem;
        margin: 1rem;
    }
    
    .hero-section {
        min-height: 80vh;
    }
    
    .card-content,
    .mission-card .card-content,
    .workshop-card .card-content,
    .portfolio-card .card-content {
        padding: 1.5rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --gray-600: #333333;
        --gray-700: #222222;
        --gray-800: #111111;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-indicator {
        animation: none;
    }
}

/* Print styles */
@media print {
    .navbar,
    .footer-section,
    .hero-section,
    .scroll-indicator,
    .cookie-popup {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .content-wrapper {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}