/* 
 * Base Variables and Reset
 */
:root {
    --primary-color: #0ea5e9;
    --secondary-color: #6366f1;
    --primary-hover: #0284c7;
    --text-color: #334155;
    --heading-color: #0f172a;
    --bg-color: #ffffff;
    --bg-secondary: #f8fafc;
    --border-color: #e2e8f0;
    
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    
    --container-width: 1200px;
    --spacing-section: 100px;
}

[data-theme="dark"] {
    --text-color: #94a3b8;
    --heading-color: #f8fafc;
    --bg-color: #0f172a;
    --bg-secondary: #1e293b;
    --border-color: #334155;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s, color 0.3s;
}

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

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

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

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: var(--spacing-section) 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-top: 1.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    box-shadow: var(--shadow-md);
}

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

/* Loading Screen */
#loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease;
}

.loader {
    width: 50px;
    height: 50px;
    border: 3px solid var(--bg-secondary);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Header & Navigation */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
    padding: 20px 0;
}

.site-header.scrolled {
    background: var(--bg-color);
    box-shadow: var(--shadow-sm);
    padding: 10px 0;
}

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

.site-title {
    font-size: 1.8rem;
    margin: 0;
}

.site-title a {
    color: var(--heading-color);
}

.main-navigation {
    display: flex;
    align-items: center;
}

.menu-wrapper {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 25px;
    margin: 0;
}

.nav-menu li a {
    color: var(--heading-color);
    font-weight: 500;
    font-size: 1rem;
    position: relative;
}

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

.nav-menu li a:hover::after,
.nav-menu li.current-menu-item a::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.dark-mode-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--heading-color);
    cursor: pointer;
    transition: var(--transition);
}

.dark-mode-btn:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.hamburger-box {
    width: 30px;
    height: 24px;
    display: inline-block;
    position: relative;
}

.hamburger-inner, .hamburger-inner::before, .hamburger-inner::after {
    width: 30px;
    height: 3px;
    background-color: var(--heading-color);
    position: absolute;
    transition: transform 0.15s ease;
}
.hamburger-inner::before, .hamburger-inner::after { content: ""; display: block; }
.hamburger-inner::before { top: -10px; }
.hamburger-inner::after { bottom: -10px; }

/* Sub Menu / Mega Menu (Basic) */
.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-color);
    box-shadow: var(--shadow-md);
    min-width: 200px;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    border-radius: 8px;
    list-style: none;
}

.nav-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .sub-menu li a {
    padding: 10px 20px;
    display: block;
}
.nav-menu .sub-menu li a::after { display: none; }
.nav-menu .sub-menu li a:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

/* 1. Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-color) 100%);
}

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

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.hero-actions {
    display: flex;
    gap: 15px;
}

.hero-shapes {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.shape-1 { width: 300px; height: 300px; top: 20%; right: 10%; animation-delay: 0s; }
.shape-2 { width: 150px; height: 150px; top: 60%; right: 30%; animation-delay: 2s; }

@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0); }
}

/* 2. Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-color);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    margin-top: 20px;
}

.read-more i {
    transition: transform 0.3s;
}

.service-card:hover .read-more i {
    transform: translateX(5px);
}

/* 3. About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--bg-color);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.counter {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: var(--font-heading);
}

.about-mission-vision {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.mv-box {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: 10px;
    flex: 1;
}

/* 4. Features */
.features-section {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-color);
    border-radius: 12px;
    transition: var(--transition);
}

.feature-item:hover {
    transform: scale(1.05);
}

.feature-item i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

/* 5. Portfolio */
.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--border-color);
    padding: 8px 20px;
    border-radius: 30px;
    color: var(--text-color);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.portfolio-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
}

.portfolio-item img {
    transition: transform 0.5s;
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
    padding: 20px;
    text-align: center;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h3 {
    color: #fff;
    transform: translateY(20px);
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay h3 {
    transform: translateY(0);
}

/* 6. Team */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-card {
    background: var(--bg-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
}

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

.team-image {
    position: relative;
    overflow: hidden;
}

.team-social {
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    background: rgba(255,255,255,0.9);
    padding: 15px 0;
    display: flex;
    justify-content: center;
    gap: 15px;
    transition: var(--transition);
}

.team-card:hover .team-social {
    bottom: 0;
}

.team-social a {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.team-info {
    padding: 25px 20px;
}

.team-info h3 { margin-bottom: 5px; }
.team-info p { color: var(--primary-color); font-weight: 500; font-size: 0.9rem; }

/* 7. Testimonials */
.testimonials-section {
    background: var(--bg-secondary);
    overflow: hidden;
}

.testimonial-slider {
    display: flex;
    transition: transform 0.5s ease;
}

.testimonial-slide {
    min-width: 100%;
    padding: 0 20px;
}

.testimonial-content {
    background: var(--bg-color);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.testimonial-content::before {
    content: '\f10d';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.1;
}

.client-info {
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.client-info img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

/* 8. Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pricing-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    position: relative;
}

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

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}
.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--heading-color);
    margin: 20px 0;
}

.price span {
    font-size: 1rem;
    color: var(--text-color);
    font-weight: 400;
}

.pricing-features {
    list-style: none;
    margin: 30px 0;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.pricing-features li i { color: var(--primary-color); }

/* 9. Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--bg-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.blog-image {
    position: relative;
    padding-top: 60%;
    overflow: hidden;
}

.blog-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.blog-category {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--primary-color);
    color: #fff;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    z-index: 1;
}

.blog-content { padding: 25px; }
.blog-meta {
    font-size: 0.9rem;
    color: var(--text-color);
    margin-bottom: 10px;
    display: flex;
    gap: 15px;
}
.blog-meta i { margin-right: 5px; color: var(--primary-color); }

/* 10. FAQ */
.faq-section { background: var(--bg-secondary); }
.faq-accordion { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}
.faq-question {
    width: 100%;
    text-align: left;
    padding: 20px;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--heading-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease;
}
.faq-item.active .faq-answer {
    padding: 0 20px 20px;
    max-height: 500px;
}
.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* 11. Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
}

.contact-info-card {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}
.contact-info-card i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.contact-form {
    background: var(--bg-color);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.form-group { margin-bottom: 20px; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-color);
    font-family: var(--font-primary);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 12. Footer */
.site-footer {
    background: #0f172a;
    color: #94a3b8;
    padding-top: 80px;
}
.site-footer h2, .site-footer h3 { color: #f8fafc; }

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.social-links a {
    display: inline-flex;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
    color: #f8fafc;
}
.social-links a:hover {
    background: var(--primary-color);
}

.footer-menu { list-style: none; }
.footer-menu li { margin-bottom: 10px; }
.footer-menu a { color: #94a3b8; }
.footer-menu a:hover { color: var(--primary-color); padding-left: 5px; }

.newsletter-form { display: flex; margin-top: 20px; }
.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 30px 0 0 30px;
    outline: none;
}
.newsletter-form button {
    border-radius: 0 30px 30px 0;
    padding: 12px 25px;
}

.site-info {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 25px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.footer-bottom-links a { margin-left: 15px; color: #94a3b8; }
.footer-bottom-links a:hover { color: var(--primary-color); }