/* ==============
   Variables
   ============== */
:root {
    /* Primary colors - Tetrad color scheme */
    --primary-color: #ff6b6b;
    --secondary-color: #6bff6b;
    --tertiary-color: #6b6bff;
    --quaternary-color: #ffff6b;
    
    /* Darker variants for hover states */
    --primary-dark: #d85555;
    --secondary-dark: #55d855;
    --tertiary-dark: #5555d8;
    --quaternary-dark: #d8d855;
    
    /* Neutral colors */
    --dark: #252525;
    --medium-dark: #444444;
    --medium: #777777;
    --light-medium: #aaaaaa;
    --light: #f5f5f5;
    
    /* Background gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    --gradient-tertiary: linear-gradient(135deg, var(--tertiary-color) 0%, var(--tertiary-dark) 100%);
    --gradient-quaternary: linear-gradient(135deg, var(--quaternary-color) 0%, var(--quaternary-dark) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);
    
    /* Typography */
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Nunito', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 2rem;
    --radius-circle: 50%;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==============
   Reset & Base
   ============== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

a {
    text-decoration: none;
    color: var(--tertiary-color);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--tertiary-dark);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

h1 {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: var(--radius-sm);
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

ul, ol {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

/* ==============
   Container & Layout
   ============== */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

section {
    padding: var(--spacing-lg) 0;
    position: relative;
}

/* ==============
   Buttons
   ============== */
.btn, 
button, 
input[type='submit'] {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--transition-medium);
    text-align: center;
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ==============
   Header & Navigation
   ============== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-medium);
}

.header.scrolled {
    padding: 0.5rem 0;
    background-color: rgba(255, 255, 255, 0.98);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    max-height: 60px;
    transition: all var(--transition-medium);
}

.scrolled .logo img {
    max-height: 50px;
}

.main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav li {
    margin-left: var(--spacing-md);
}

.main-nav a {
    color: var(--dark);
    font-weight: 600;
    position: relative;
    transition: color var(--transition-fast);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-medium);
}

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

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

.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.burger-menu span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--dark);
    border-radius: 3px;
    transition: all var(--transition-medium);
}

/* ==============
   Hero Section
   ============== */
.hero {
    padding: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    margin-bottom: var(--spacing-lg);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5));
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin:  0 auto;
    padding: var(--spacing-md);
}

.hero h1 {
    margin-bottom: var(--spacing-sm);
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    animation: fadeInDown 1s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: white;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
    animation: fadeInUp 1s ease-out 0.3s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    animation: fadeIn 1s ease-out 0.6s;
    animation-fill-mode: both;
}

/* ==============
   Statistics Section
   ============== */
.statistics {
    background-color: var(--light);
    padding: var(--spacing-lg) 0;
}

.stats-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.stat-card {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: var(--radius-circle);
    opacity: 0.1;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-heading);
}

.stat-card p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--medium-dark);
}

/* ==============
   History Section
   ============== */
.history {
    background-color: var(--light);
    position: relative;
    overflow: hidden;
}

.history::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: var(--tertiary-color);
    border-radius: var(--radius-circle);
    opacity: 0.05;
    z-index: 0;
}

.history-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-lg);
}

.history-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.history-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin: 0 auto;
    transition: transform var(--transition-slow);
}

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

.history-text {
    flex: 1;
    min-width: 300px;
}

.history-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--medium-dark);
    font-size: 1.1rem;
}

/* ==============
   Features Section
   ============== */
.features {
    background-color: var(--light);
    position: relative;
}

.features::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background: var(--quaternary-color);
    border-radius: var(--radius-circle);
    opacity: 0.1;
    z-index: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

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

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

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

.card-content {
    padding: var(--spacing-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card-content h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.card-content p {
    color: var(--medium-dark);
}

/* ==============
   Innovation Section
   ============== */
.innovation {
    background-color: var(--light);
    position: relative;
    overflow: hidden;
}

.innovation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 80% 20%, var(--secondary-color) 0%, transparent 25%);
    opacity: 0.05;
    z-index: 0;
}

.innovation-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-lg);
}

.innovation-text {
    flex: 1;
    min-width: 300px;
    order: 1;
}

.innovation-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
    order: 2;
}

.innovation-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin: 0 auto;
    transition: transform var(--transition-slow);
}

.innovation-image img:hover {
    transform: scale(1.02) rotate(1deg);
}

.innovation-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--medium-dark);
    font-size: 1.1rem;
}

/* ==============
   Resources Section
   ============== */
.resources {
    background-color: var(--light);
    position: relative;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.resource-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.resource-card .card-image {
    height: 200px;
}

.resource-card .card-content {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.resource-card h3 {
    color: var(--tertiary-color);
    margin-bottom: var(--spacing-sm);
}

.resource-card ul {
    list-style: none;
    padding: 0;
    text-align: center;
}

.resource-card li {
    margin-bottom: var(--spacing-xs);
}

.resource-card a {
    color: var(--primary-color);
    font-weight: 600;
    transition: color var(--transition-fast);
}

.resource-card a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ==============
   Blog Section
   ============== */
.blog {
    background-color: var(--light);
    position: relative;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.blog-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.blog-card .card-image {
    height: 250px;
}

.blog-card .card-content {
    padding: var(--spacing-md);
    text-align: left;
    flex-grow: 1;
}

.blog-card h3 {
    color: var(--dark);
    transition: color var(--transition-fast);
}

.blog-card:hover h3 {
    color: var(--primary-color);
}

.blog-date {
    font-size: 0.9rem;
    color: var(--medium);
    margin-bottom: var(--spacing-sm);
}

.blog-excerpt {
    color: var(--medium-dark);
    margin-bottom: var(--spacing-md);
}

.read-more {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 700;
    position: relative;
    transition: all var(--transition-fast);
}

.read-more::after {
    content: '→';
    margin-left: 5px;
    transition: transform var(--transition-fast);
}

.read-more:hover {
    color: var(--primary-dark);
}

.read-more:hover::after {
    transform: translateX(5px);
}

/* ==============
   Contact Section
   ============== */
.contact {
    background-color: var(--light);
    position: relative;
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-info {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.info-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.info-card p {
    margin-bottom: var(--spacing-sm);
    color: var(--medium-dark);
}

.contact-hours {
    margin-top: var(--spacing-md);
}

.contact-hours h4 {
    color: var(--tertiary-color);
    margin-bottom: var(--spacing-xs);
}

.map-container {
    width: 100%;
    height: 300px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.map-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-form-container {
    flex: 1;
    min-width: 300px;
}

.contact-form {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--medium-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light-medium);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

/* ==============
   Footer
   ============== */
.footer {
    background-color: var(--dark);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-sm);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo img {
    margin-bottom: var(--spacing-sm);
    max-width: 150px;
}

.footer-logo p {
    color: var(--light-medium);
}

.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-column {
    flex: 1;
    min-width: 160px;
}

.footer-column h3 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: var(--light-medium);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.social-links a {
    color: var(--light-medium);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--light-medium);
    font-size: 0.9rem;
}

/* ==============
   Success Page
   ============== */
.success-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: var(--spacing-md);
}

.success-container {
    max-width: 600px;
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.success-icon {
    font-size: 4rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.success-title {
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
}

.success-message {
    color: var(--medium-dark);
    margin-bottom: var(--spacing-md);
}

/* ==============
   Privacy & Terms Pages
   ============== */
.page-content {
    padding-top: 100px;
    padding-bottom: var(--spacing-lg);
}

.page-content h1 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.page-content h2 {
    margin-top: var(--spacing-lg);
}

.page-content p,
.page-content ul,
.page-content ol {
    margin-bottom: var(--spacing-md);
    color: var(--medium-dark);
}

/* ==============
   Animations
   ============== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==============
   Responsive Design
   ============== */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .container {
        width: 95%;
    }
    
    .innovation-content,
    .history-content {
        flex-direction: column;
    }
    
    .innovation-text,
    .innovation-image,
    .history-text,
    .history-image {
        min-width: 100%;
    }
    
    .innovation-image {
        order: 1;
        margin-bottom: var(--spacing-md);
    }
    
    .innovation-text {
        order: 2;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    h1 {
        font-size: 2.8rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: white;
        flex-direction: column;
        padding: var(--spacing-xl) var(--spacing-md);
        transition: right var(--transition-medium);
        box-shadow: var(--shadow-lg);
        z-index: 1001;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: var(--spacing-sm) 0;
    }
    
    .burger-menu {
        display: flex;
        z-index: 1002;
    }
    
    .burger-menu.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .burger-menu.active span:nth-child(2) {
        opacity: 0;
    }
    
    .burger-menu.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .contact-content,
    .footer-content {
        flex-direction: column;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .stats-container {
        flex-direction: column;
    }
    
    .stat-card {
        width: 100%;
    }
    
    .features-grid,
    .blog-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-column {
        min-width: 100%;
    }
}