/* ============================================
   Guna Arts IT Solutions - Main Stylesheet
   ============================================ */

/* CSS Custom Properties (Variables) */
:root {
    --primary-blue: #2563eb;
    --primary-blue-dark: #1e40af;
    --primary-blue-light: #3b82f6;
    --white: #ffffff;
    --dark-gray: #1f2937;
    --dark-gray-light: #374151;
    --gray: #6b7280;
    --light-gray: #f3f4f6;
    --border-gray: #e5e7eb;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    
    --transition: all 0.3s ease;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

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

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

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Section Spacing */
section {
    padding: 4rem 0;
}

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

.section-title h2 {
    font-size: 2rem;
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

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

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

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

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

.btn-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* Navigation */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

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

.nav-link {
    color: var(--dark-gray);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

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

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-gray);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    padding: 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
}

/* Services Preview */
.services-preview {
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: center;
}

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

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    color: var(--primary-blue);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.service-card p {
    color: var(--gray);
}

/* Why Choose Us */
.why-choose-us {
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background-color: var(--light-gray);
    border-radius: 0.75rem;
    border-left: 4px solid var(--primary-blue);
    transition: var(--transition);
}

.feature-card:hover {
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.feature-icon {
    width: 50px;
    height: 50px;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 0.75rem;
}

/* Testimonials */
.testimonials {
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
}

.testimonial-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-slide {
    display: none;
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
}

.testimonial-slide.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.testimonial-content {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial-author {
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 0.25rem;
}

.testimonial-role {
    font-size: 0.9rem;
    color: var(--gray);
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.testimonial-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--border-gray);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    min-width: 12px;
    min-height: 12px;
}

.testimonial-dot.active {
    background-color: var(--primary-blue);
    transform: scale(1.2);
}

/* Footer */
.footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

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

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
    display: block;
}

.footer-section a:hover {
    color: var(--white);
}

.footer-links {
    list-style: none;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* About Page Styles */
.about-intro {
    padding: 4rem 0;
    background-color: var(--white);
}

.about-intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.mission-vision {
    background-color: var(--light-gray);
    padding: 4rem 0;
}

.mv-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.mv-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.mv-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    color: var(--primary-blue);
}

.unique-section {
    padding: 4rem 0;
    background-color: var(--white);
}

.team-section {
    background-color: var(--light-gray);
    padding: 4rem 0;
}

.team-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.team-member {
    background: var(--white);
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: center;
}

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

.team-member-img {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--primary-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 4rem;
}

.team-member-info {
    padding: 1.5rem;
}

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

.team-member-info p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Services Page Styles */
.services-hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.services-hero h1 {
    color: var(--white);
    margin-bottom: 1rem;
}

.services-hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

.service-detail {
    padding: 4rem 0;
    background-color: var(--white);
}

.service-detail:nth-child(even) {
    background-color: var(--light-gray);
}

.service-detail-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

.service-detail-text h2 {
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.service-detail-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

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

.service-features li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--gray);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
    font-size: 1.2rem;
}

.service-detail-icon {
    width: 120px;
    height: 120px;
    color: var(--primary-blue);
    margin: 0 auto;
}

/* Contact Page Styles */
.contact-hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.contact-hero h1 {
    color: var(--white);
    margin-bottom: 1rem;
}

.contact-content {
    padding: 4rem 0;
    background-color: var(--white);
}

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

.contact-form {
    background: var(--light-gray);
    padding: 2.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-gray);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-gray);
    border-radius: 0.5rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-group .error {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group.error input,
.form-group.error textarea {
    border-color: #ef4444;
}

.form-group.error .error {
    display: block;
}

.form-success {
    display: none;
    padding: 1rem;
    background-color: #10b981;
    color: var(--white);
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-success.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

.contact-info {
    background: var(--light-gray);
    padding: 2.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
}

.contact-info-item {
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-info-icon {
    width: 40px;
    height: 40px;
    color: var(--primary-blue);
    flex-shrink: 0;
}

.contact-info-text h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-info-text p {
    margin: 0;
    color: var(--gray);
}

.map-container {
    margin-top: 3rem;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.map-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--border-gray) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
    font-size: 1.1rem;
}

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

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Hero Slider */
.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 600px;
}

.hero-slide.active {
    opacity: 1;
    z-index: 1;
}

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

.hero-slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.80) 0%, rgba(30, 64, 175, 0.80) 100%);
    z-index: 1;
}

.hero-slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
    max-width: 900px;
    padding: 3rem 1rem;
    color: var(--white);
}

.hero-slide-content h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
    font-size: 3rem;
    line-height: 1.2;
}

.hero-slide-content .tagline {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    color: rgba(255, 255, 255, 0.98);
}

.hero-paragraph {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    max-width: 850px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1rem;
}

.hero-slider-controls {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.hero-slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: var(--transition);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.hero-slider-dot.active {
    background-color: var(--white);
    transform: scale(1.2);
}

.hero-slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background-color: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.hero-slider-arrow:hover {
    background-color: rgba(255, 255, 255, 0.3);
    border-color: var(--white);
}

.hero-slider-arrow.prev {
    left: 1rem;
}

.hero-slider-arrow.next {
    right: 1rem;
}

.hero-slider-arrow i {
    width: 24px;
    height: 24px;
}

/* Courses & Products Styles */
.courses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.course-card {
    background: var(--white);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
}

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

.course-image {
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--primary-blue) 100%);
    padding: 2rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 150px;
}

.course-content {
    padding: 2rem;
}

.course-content h3 {
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.course-description {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.course-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.course-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    color: var(--gray);
}

.course-features li i {
    color: var(--primary-blue);
    flex-shrink: 0;
}

.course-price {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.product-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.product-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-gray);
    border-radius: 50%;
}

.product-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.product-card p {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

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

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