/* eHOTECH Computer Training Institute - Main Stylesheet */

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

/* CSS Variables - Brand Colors */
:root {
    --primary: #0F3A7D;
    --primary-light: #1a4fa0;
    --accent: #00D9FF;
    --accent-dark: #00a8cc;
    --secondary: #FF6B35;
    --secondary-light: #ff8555;
    --background: #F8F9FA;
    --foreground: #1A1A1A;
    --card-bg: #FFFFFF;
    --border-color: #E8EAED;
    --text-muted: #6B7280;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--foreground);
    background-color: var(--background);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.65rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-accent {
    background-color: var(--accent);
    color: var(--primary);
    font-weight: 700;
}

.btn-accent:hover {
    background-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

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

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.logo-img {
    height: 2rem;
    width: 2rem;
}

.nav-links {
    display: none;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--foreground);
}

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

.nav-links .btn-primary {
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
}

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    cursor: pointer;
}

@media (min-width: 768px) {
    .hamburger {
        display: none;
    }
}

.hamburger span {
    width: 1.5rem;
    height: 0.2rem;
    background-color: var(--foreground);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 4rem 0;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0F3A7D 0%, #1a4fa0 50%, #2a5fa0 100%);
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(0,217,255,0.1)" stroke-width="1"/></pattern></defs><rect width="1200" height="600" fill="%230F3A7D"/><rect width="1200" height="600" fill="url(%23grid)"/></svg>');
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(15, 58, 125, 0.8), rgba(15, 58, 125, 0.6), transparent);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    color: white;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
}

@media (min-width: 768px) {
    .hero-content h1 {
        font-size: 3.5rem;
    }
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 3rem;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Courses Section */
.courses {
    padding: 5rem 0;
    background-color: var(--background);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.courses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .courses-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.course-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.65rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary);
    cursor: pointer;
}

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

.course-card.gradient-1 {
    border-top-color: var(--primary);
}

.course-card.gradient-2 {
    border-top-color: var(--accent);
}

.course-card.gradient-3 {
    border-top-color: var(--secondary);
}

.course-card.gradient-4 {
    border-top-color: var(--primary);
}

.course-card.gradient-5 {
    border-top-color: var(--accent);
}

.course-card.gradient-6 {
    border-top-color: var(--secondary);
}

.course-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    display: inline-block;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
}

.course-card h3 {
    margin-bottom: 0.75rem;
    color: var(--foreground);
}

.course-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.course-link {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--card-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.features-content h2 {
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    padding: 0.75rem 0;
    font-size: 1rem;
    color: var(--foreground);
}

.features-visual {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-box {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(15, 58, 125, 0.05), rgba(0, 217, 255, 0.05));
    border-radius: 0.65rem;
    border: 1px solid var(--border-color);
}

.feature-icon {
    font-size: 2rem;
    min-width: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-text h4 {
    color: var(--foreground);
    margin-bottom: 0.25rem;
}

.feature-text p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

/* Testimonials Section */
.testimonials {
    padding: 5rem 0;
    background-color: var(--background);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.65rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
}

.rating {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.testimonial-text {
    color: var(--foreground);
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.testimonial-author {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.author-name {
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 0.25rem;
}

.author-role {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

/* CTA Section */
.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
    }
}

/* Footer */
.footer {
    background-color: var(--foreground);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-col h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-col ul {
    list-style: none;
}

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

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-col a:hover {
    color: white;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.footer-logo-img {
    height: 1.5rem;
    width: 1.5rem;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 640px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
}