/* Import Modern Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Sora:wght@400;500;600;700;800&display=swap');

/* Reset and Core Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Fonts */
    --font-heading: 'Sora', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Theme Variables - Dark Theme (Default) */
    --bg-primary: #131e3d;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-card: rgba(38, 95, 218, 0.7);
    --bg-glass: rgba(17, 24, 39, 0.45);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(59, 130, 246, 0.4);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --primary: #3b82f6; /* Electric Blue */
    --primary-glow: rgba(59, 130, 246, 0.15);
    --accent: #8b5cf6; /* Vibrant Indigo/Violet */
    --accent-glow: rgba(139, 92, 246, 0.15);
    --success: #10b981;
    --error: #ef4444;
    
    --gradient-hero: linear-gradient(135deg, #1e1b4b 0%, #0a0f1d 50%, #030712 100%);
    --gradient-accent: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 100%);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px 0 rgba(59, 130, 246, 0.35);

    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Light Theme Variables */
body.light-theme {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-glass: rgba(255, 255, 255, 0.75);
    
    --border-color: rgba(0, 0, 0, 0.06);
    --border-hover: rgba(59, 130, 246, 0.5);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --primary: #2563eb;
    --primary-glow: rgba(37, 99, 235, 0.1);
    --accent: #7c3aed;
    --accent-glow: rgba(124, 58, 237, 0.1);
    
    --gradient-hero: linear-gradient(135deg, #eff6ff 0%, #f8fafc 50%, #f1f5f9 100%);
    --gradient-card: linear-gradient(180deg, rgba(0, 0, 0, 0.01) 0%, rgba(0, 0, 0, 0) 100%);
    
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-glow: 0 0 20px 0 rgba(37, 99, 235, 0.15);
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
}

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

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-header p {
    font-size: 1.1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    outline: none;
    gap: 8px;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    transform: translateY(-2px);
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-normal), border-color var(--transition-normal), padding var(--transition-normal);
    padding: 20px 0;
}

.navbar.scrolled {
    padding: 12px 0;
    background-color: var(--bg-primary);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.3rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo img {
    height: 36px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.theme-toggle:hover {
    color: var(--text-primary);
    background-color: var(--border-color);
    transform: rotate(15deg);
}

.theme-toggle .sun-icon {
    display: none;
}

body.light-theme .theme-toggle .moon-icon {
    display: none;
}

body.light-theme .theme-toggle .sun-icon {
    display: block;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    padding-top: 120px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: var(--primary-glow);
    filter: blur(80px);
    z-index: 0;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 10%;
    right: 10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: var(--accent-glow);
    filter: blur(100px);
    z-index: 0;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 24px;
    line-height: 1.15;
}

.hero-content h1 span {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-circle-bg {
    position: absolute;
    width: 100%;
    max-width: 450px;
    aspect-ratio: 1;
    border-radius: 50%;
    border: 1px dashed var(--border-color);
    animation: rotate 60s linear infinite;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    border-radius: var(--border-radius-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image-wrapper img {
    width: 80%;
    height: 80%;
    object-fit: contain;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
    animation: float 6s ease-in-out infinite;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-card);
    z-index: 0;
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.3), var(--primary-glow);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-sm);
    background: var(--primary-glow);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
    transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
    background: var(--gradient-accent);
    color: #ffffff;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.service-card p {
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* About Us Section */
.about {
    background-color: var(--bg-secondary);
}

.about .container {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 80px;
    align-items: center;
}

.about-visual {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.about-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 30px 24px;
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.about-box:nth-child(2) {
    transform: translateY(30px);
}

.about-box:nth-child(3) {
    transform: translateY(-30px);
}

.about-box .num {
    font-size: 2.8rem;
    font-family: var(--font-heading);
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    display: block;
}

.about-box p {
    font-size: 0.95rem;
    font-weight: 500;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.about-content p {
    margin-bottom: 24px;
}

.about-list {
    list-style: none;
    margin-bottom: 40px;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-weight: 500;
}

.about-list li svg {
    color: var(--success);
    flex-shrink: 0;
}

/* Testimonials Section */
.testimonials {
    overflow: hidden;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    position: relative;
}

.quote-icon {
    position: absolute;
    top: 30px;
    right: 40px;
    color: var(--border-hover);
    opacity: 0.2;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 30px;
    font-size: 1.05rem;
}

.client-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.client-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    border: 2px solid var(--primary);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-weight: bold;
}

.client-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.client-details h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.client-details p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Contact Section */
.contact {
    background-color: var(--bg-secondary);
}

.contact .container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 80px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.contact-info-text h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.contact-details-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    background: var(--primary-glow);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 0.95rem;
}

.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 14px 18px;
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* Toast Notification */
.toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 16px 24px;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-normal);
    min-width: 300px;
    border-left: 4px solid var(--primary);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    border-left-color: var(--success);
}

.toast.error {
    border-left-color: var(--error);
}

.toast-message {
    font-size: 0.95rem;
    font-weight: 500;
}

/* Footer */
.footer {
    background-color: var(--bg-primary);
    padding: 80px 0 30px 0;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand p {
    margin-top: 20px;
    font-size: 0.95rem;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 24px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--text-primary);
    padding-left: 4px;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.social-btn:hover {
    color: #ffffff;
    background: var(--gradient-accent);
    transform: translateY(-3px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.9rem;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer-bottom-links a:hover {
    color: var(--text-primary);
}

/* Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Scroll Animation classes (handled by JS) */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about .container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-visual {
        order: 2;
    }
    
    .about-content {
        order: 1;
    }
    
    .contact .container {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--bg-secondary);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        box-shadow: -10px 0 30px rgba(0,0,0,0.15);
        transition: right var(--transition-normal);
        z-index: 1000;
        border-left: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-actions {
        margin-right: 40px;
    }
    
    .about-box:nth-child(even), .about-box:nth-child(odd) {
        transform: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}