/* Enhanced CSS Variables - Professional Dark Theme */
:root {
    /* Primary Colors */
    --color-primary: #0d1b2a;
    --color-primary-light: #1b263b;
    --color-secondary: #415a77;
    --color-accent: #3a86ff;
    --color-accent-light: #4cc9f0;
    --color-success: #4ade80;
    --color-warning: #fbbf24;
    --color-danger: #ef4444;
    --color-info: #06b6d4;
    
    /* Neutral Colors */
    --color-bg: #0a1929;
    --color-bg-alt: #112240;
    --color-card: #1e293b;
    --color-text: #e2e8f0;
    --color-text-light: #94a3b8;
    --color-text-lighter: #cbd5e1;
    --color-border: #334155;
    --color-shadow: rgba(0, 0, 0, 0.3);
    
    /* Fonts */
    --font-primary: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.5);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    --gradient-dark: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}

/* Light theme */
[data-theme="light"] {
    --color-primary: #e2e8f0;
    --color-primary-light: #f1f5f9;
    --color-bg: #f8fafc;
    --color-bg-alt: #f1f5f9;
    --color-card: #ffffff;
    --color-text: #0f172a;
    --color-text-light: #475569;
    --color-text-lighter: #334155;
    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --gradient-dark: linear-gradient(135deg, #cbd5e1, #e2e8f0);
}

[data-theme="light"] .hero-title,
[data-theme="light"] .section-title { background: linear-gradient(to right, #0f172a, var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
[data-theme="light"] .terminal { box-shadow: 0 20px 40px rgba(0,0,0,0.12); }
[data-theme="light"] .image-placeholder { background: linear-gradient(135deg, #e2e8f0, #f1f5f9); }
[data-theme="light"] .header { background-color: rgba(248, 250, 252, 0.95); border-bottom-color: var(--color-border); }
[data-theme="light"] .header.scrolled { background-color: rgba(255, 255, 255, 0.98); }
[data-theme="light"] .nav-menu a { color: var(--color-text); }
[data-theme="light"] .footer { background-color: var(--color-primary); border-top-color: var(--color-border); }
[data-theme="light"] .hero::before { background-image: radial-gradient(circle at 20% 30%, rgba(58, 134, 255, 0.08) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(76, 201, 240, 0.05) 0%, transparent 50%); }

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes terminalTyping {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

/* Scroll progress bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 1001;
    transition: width 0.1s linear;
}

/* Theme toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: rgba(58, 134, 255, 0.1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    cursor: pointer;
    transition: var(--transition);
    margin-right: var(--spacing-sm);
}

.theme-toggle:hover {
    background: rgba(58, 134, 255, 0.2);
    transform: rotate(15deg);
}

.theme-toggle i {
    font-size: 1.1rem;
}

.theme-toggle .fa-sun { display: none; }
[data-theme="light"] .theme-toggle .fa-moon { display: none; }
[data-theme="light"] .theme-toggle .fa-sun { display: block; }

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header & Navigation */
.header {
    background-color: rgba(13, 27, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
    background-color: rgba(13, 27, 42, 0.98);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    position: relative;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
}

.logo-icon {
    font-size: 1.8rem;
    animation: float 3s ease-in-out infinite;
}

.logo-highlight {
    color: var(--color-accent);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-text);
    transition: var(--transition);
    border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-menu a:hover {
    color: var(--color-accent);
}

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

.nav-menu a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: calc(var(--spacing-2xl) + 80px) var(--spacing-lg) var(--spacing-2xl);
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(58, 134, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(76, 201, 240, 0.05) 0%, transparent 50%);
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(58, 134, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(58, 134, 255, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
    z-index: 0;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: slideInLeft 0.8s ease-out;
}

.hero-badge {
    display: inline-block;
    background: rgba(58, 134, 255, 0.1);
    color: var(--color-accent);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(58, 134, 255, 0.2);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    background: linear-gradient(to right, #fff, var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-weight: 500;
}

.hero-visual {
    animation: slideInRight 0.8s ease-out;
}

.terminal {
    background-color: var(--color-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-border);
}

.terminal-header {
    background-color: var(--color-primary-light);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.terminal-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dots .red { background-color: #ff5f56; }
.terminal-dots .yellow { background-color: #ffbd2e; }
.terminal-dots .green { background-color: #27ca3f; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-left: auto;
}

.terminal-body {
    padding: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
}

.terminal-body pre {
    margin: 0;
    overflow: hidden;
}

.terminal-body code {
    color: var(--color-success);
    display: block;
    white-space: pre-wrap;
}

.terminal-body code::before {
    content: '> ';
    color: var(--color-accent);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    font-family: var(--font-primary);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(58, 134, 255, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

/* Section Common Styles */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.6s ease-out;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(to right, var(--color-text), var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--color-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background-color: var(--color-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: var(--transition);
    position: relative;
    animation: fadeInUp 0.6s ease-out;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
}

.service-card.featured {
    border-color: var(--color-accent);
    background: linear-gradient(145deg, var(--color-card), var(--color-primary-light));
}

.service-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-lg);
    background: var(--gradient-primary);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 600;
}

.service-icon {
    width: 64px;
    height: 64px;
    background: rgba(58, 134, 255, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.75rem;
    color: var(--color-accent);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    background: rgba(58, 134, 255, 0.2);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.service-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.service-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.service-features i {
    color: var(--color-success);
    font-size: 0.8rem;
}

.service-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.service-link:hover {
    gap: 10px;
}

/* About Section */
.about {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--color-bg-alt);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-content {
    animation: slideInLeft 0.8s ease-out;
}

.about-text p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.certifications {
    margin-top: var(--spacing-xl);
}

.certifications h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.certs-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.cert-badge {
    background: rgba(58, 134, 255, 0.1);
    color: var(--color-accent);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(58, 134, 255, 0.2);
    transition: var(--transition);
}

.cert-badge:hover {
    background: rgba(58, 134, 255, 0.2);
    transform: translateY(-2px);
}

.about-image {
    animation: slideInRight 0.8s ease-out;
}

.image-placeholder {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-card));
    border-radius: var(--radius-lg);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.image-placeholder i {
    font-size: 6rem;
    color: var(--color-accent);
    opacity: 0.5;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(13, 27, 42, 0.9), transparent);
    padding: var(--spacing-xl);
    color: white;
}

.image-overlay h4 {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.image-overlay p {
    color: var(--color-text-light);
    font-size: 1rem;
}

/* Skills Section */
.skills {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--color-bg);
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.skill-category {
    background-color: var(--color-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    animation: fadeInUp 0.6s ease-out;
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-category h3 i {
    color: var(--color-accent);
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.skill-item {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-sm);
    align-items: center;
}

.skill-name {
    font-weight: 600;
    color: var(--color-text);
}

.skill-bar {
    grid-column: 1 / -1;
    height: 8px;
    background-color: var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.skill-level {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.skill-level::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.2), 
        transparent);
    animation: shimmer 2s infinite;
}

.skill-percent {
    font-weight: 700;
    color: var(--color-accent);
    font-size: 0.9rem;
}

/* Testimonials Section */
.testimonials {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--color-bg-alt);
}

.testimonials-carousel {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.testimonials-track {
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.testimonials-track::-webkit-scrollbar {
    display: none;
}

.testimonial-card {
    flex: 0 0 100%;
    scroll-snap-align: center;
    background-color: var(--color-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease-out;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
}

.testimonial-content {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.testimonial-content i {
    position: absolute;
    top: -10px;
    left: -10px;
    font-size: 2rem;
    color: var(--color-accent);
    opacity: 0.3;
}

.testimonial-content p {
    color: var(--color-text-light);
    font-style: italic;
    line-height: 1.7;
    font-size: 1.05rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 1.25rem;
}

.author-info h4 {
    font-size: 1.125rem;
    margin-bottom: 4px;
    color: var(--color-text);
}

.author-info p {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    color: var(--color-accent);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 2;
}

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

.carousel-prev { left: -24px; }
.carousel-next { right: -24px; }

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: var(--spacing-lg);
}

.carousel-dots button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: var(--color-border);
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dots button.active,
.carousel-dots button:hover {
    background: var(--color-accent);
    transform: scale(1.2);
}

/* FAQ Section */
.faq {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--color-bg);
}

.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: var(--transition);
    animation: fadeInUp 0.5s ease-out;
}

.faq-item:hover {
    border-color: var(--color-accent);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: none;
    border: none;
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--color-accent);
}

.faq-question i {
    flex-shrink: 0;
    color: var(--color-accent);
    transition: transform 0.3s ease;
}

.faq-item[data-open] .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-light);
    line-height: 1.7;
    margin: 0;
}

/* Security Tips Banner */
.security-tips {
    background: linear-gradient(90deg, rgba(58, 134, 255, 0.15), rgba(76, 201, 240, 0.08));
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) var(--spacing-lg);
}

.security-tips-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.security-tips-inner i {
    font-size: 1.25rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

.security-tip-text {
    flex: 1;
    margin: 0;
    color: var(--color-text);
    font-size: 0.95rem;
}

.security-tip-next {
    background: rgba(58, 134, 255, 0.2);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.security-tip-next:hover {
    background: var(--color-accent);
    color: white;
}

/* Contact Section */
.contact {
    padding: var(--spacing-2xl) var(--spacing-lg);
    background-color: var(--color-bg);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    animation: slideInLeft 0.8s ease-out;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.contact-item i {
    width: 48px;
    height: 48px;
    background: rgba(58, 134, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-accent);
}

.contact-item h4 {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: 4px;
    font-weight: 500;
}

.contact-item a, .contact-item p {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--color-accent);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.social-link {
    width: 44px;
    height: 44px;
    background-color: var(--color-card);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.social-link:hover {
    background-color: var(--color-accent);
    color: white;
    transform: translateY(-3px);
    border-color: var(--color-accent);
}

.contact-form-wrapper {
    animation: slideInRight 0.8s ease-out;
}

.contact-form {
    background-color: var(--color-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--color-danger);
}

.error-message {
    display: block;
    color: var(--color-danger);
    font-size: 0.85rem;
    margin-top: 6px;
    font-weight: 500;
    min-height: 1.2rem;
}

.form-footer {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.form-status {
    text-align: center;
    font-weight: 600;
    min-height: 1.5rem;
    font-size: 0.95rem;
}

.form-status.success {
    color: var(--color-success);
}

.form-status.error {
    color: var(--color-danger);
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    padding: var(--spacing-2xl) var(--spacing-lg) var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand p {
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
    font-size: 0.95rem;
}

.footer-links h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

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

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.footer-cta h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.footer-legal {
    margin-top: var(--spacing-lg);
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.footer-legal p {
    margin-bottom: 4px;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.footer-bottom i {
    color: var(--color-success);
    margin-right: 6px;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-primary);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: 0;
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: var(--transition-slow);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--color-border);
    }
    
    [data-theme="light"] .nav-menu {
        background-color: var(--color-card);
        border: 1px solid var(--color-border);
    }
    
    .nav-menu.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-border);
        justify-content: center;
    }
    
    .nav-menu a:last-child {
        border-bottom: none;
    }
    
    .carousel-prev { left: 8px; }
    .carousel-next { right: 8px; }
    .carousel-btn { width: 40px; height: 40px; font-size: 0.9rem; }
    
    .security-tips-inner {
        flex-wrap: wrap;
    }
    
    .security-tip-next {
        margin-left: auto;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-container {
        grid-template-columns: 1fr;
    }
    
    .testimonials-carousel {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
}