/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #000000;
    --secondary-color: #1a1a1a;
    --accent-color: #4468bc;
    --veina-blue: #4468bc;
    --veina-red: #b91b11;
    --text-color: #1a1a1a;
    --text-light: #666666;
    --bg-light: #fafafa;
    --bg-white: #ffffff;
    --white: #ffffff;
    --border-color: #e5e5e5;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.08);
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    --spacing-xxl: 12rem;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: clamp(120px, 15vh, 180px); /* Account for fixed header */
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--white);
    font-size: 17px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary-color);
    letter-spacing: -0.01em;
}

h1 { font-size: 3.5rem; font-weight: 700; }
h2 { font-size: 2.5rem; font-weight: 600; }
h3 { font-size: 1.75rem; font-weight: 600; }
h4 { font-size: 1.35rem; }
h5 { font-size: 1.15rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover:not(header nav a):not(nav a) {
    color: #4468bc;
}

/* Header */
header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
}

nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

nav a {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

nav a:hover,
nav ul li a:hover,
header nav a:hover {
    color: #4468bc !important;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #4468bc;
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.875rem 1.75rem;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: background 0.2s ease, opacity 0.2s ease;
    border: none;
}

.btn-primary:hover {
    background: var(--secondary-color);
    opacity: 0.9;
}

.btn-primary::after {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

/* Hero Section */
.hero {
    background: var(--bg-white);
    color: var(--text-color);
    padding: var(--spacing-xxl) 2rem var(--spacing-xl);
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.hero-logo {
    max-width: 100%;
    height: auto;
    width: auto;
}

.hero-logo {
    height: 120px;
    width: auto;
    margin-bottom: var(--spacing-md);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.hero h1 {
    color: var(--primary-color);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-light);
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) 0;
}

.hero-stat {
    padding: var(--spacing-md);
}

.hero-stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-color);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.hero-stat-label {
    font-size: 1.1rem;
    color: var(--text-color);
    font-weight: 500;
}

.hero-image {
    margin-top: var(--spacing-lg);
}

.hero-image img {
    max-width: 400px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

/* Sections */
section {
    padding: var(--spacing-xxl) 2rem;
    min-height: auto;
    width: 100%;
    box-sizing: border-box;
}

section[id] {
    scroll-margin-top: clamp(120px, 15vh, 180px); /* Account for fixed header when scrolling to section */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 2rem;
    box-sizing: border-box;
}

.section-header {
    text-align: left;
    margin-bottom: var(--spacing-xl);
    max-width: 900px;
}

.section-header h2 {
    font-size: 2.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: 1.15rem;
    color: var(--text-light);
    line-height: 1.7;
    font-weight: 400;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

/* Feature Sections */
.feature-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.feature-card {
    background: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-color);
}

.feature-card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* Image Sections */
.image-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin: 4rem 0;
    width: 100%;
}

.image-section img {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: var(--shadow);
    display: block;
}

.image-section.reverse {
    direction: rtl;
}

.image-section.reverse > * {
    direction: ltr;
}

.image-section.full-width {
    grid-template-columns: 1fr;
}

.image-section.full-width img {
    max-width: 100%;
    width: 100%;
}

/* Stats Section */
.stats-section {
    background: var(--bg-light);
    padding: var(--spacing-lg) 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.stat-card {
    padding: var(--spacing-md);
    background: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

/* Content Sections */
.content-section {
    max-width: 700px;
    margin: 0;
}

.content-section p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
}

.content-section h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-section img {
    width: 100%;
    margin: 2rem 0;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.content-section hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 3rem 0;
}

/* Team Grid */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.team-member {
    text-align: center;
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.team-member img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 1rem;
    border: 4px solid var(--accent-color);
}

.team-member h3 {
    margin-bottom: 0.5rem;
}

.team-member p {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.mentor-section {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 10px;
}

.mentor-content {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.mentor-content img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    flex-shrink: 0;
}

/* Footer */
footer {
    background: var(--veina-blue);
    color: var(--white);
    padding: 3rem 2rem 1.5rem;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-links a {
    color: var(--white);
    font-size: 1rem;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease, transform 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 5px;
}

.social-links a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
    border-color: var(--accent-color);
}

.copyright {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: background 0.2s ease, opacity 0.2s ease;
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.btn:hover {
    background: var(--secondary-color);
    opacity: 0.9;
}

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

.btn-secondary:hover {
    background: var(--accent-color);
    color: var(--white);
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        box-shadow: var(--shadow);
        padding: var(--spacing-sm) 2rem;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: flex-start;
    }

    .header-container {
        position: relative;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }

    .hero {
        padding: var(--spacing-lg) 1.5rem;
    }

    .hero-content {
        grid-template-columns: 1fr !important;
        text-align: center;
    }

    .image-section {
        grid-template-columns: 1fr !important;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-stat-number {
        font-size: 2.5rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .image-section {
        grid-template-columns: 1fr;
    }

    .mentor-content {
        flex-direction: column;
    }

    .mentor-content img {
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }

    section {
        padding: var(--spacing-md) 1.5rem;
    }
}

@media (max-width: 480px) {
    html {
        scroll-padding-top: 70px;
    }

    section[id] {
        scroll-margin-top: 70px;
    }

    .hero-logo {
        height: auto !important;
        max-height: 150px;
        width: auto;
    }

    .hero h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .hero-stat-number {
        font-size: 2rem;
    }

    .team-member img {
        width: 150px;
        height: 150px;
        max-width: 100%;
    }

    .stat-number {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    section {
        padding: var(--spacing-md) 1rem;
    }

    .container {
        padding: 0 1rem;
    }

    .image-section {
        gap: var(--spacing-sm);
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }