/* ============================================
   CodeVDeep Portfolio - Main Stylesheet
   Modern Dark Theme with Purple/Blue Accents
   ============================================ */

/* ============ CSS Variables ============ */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a25;
    --color-bg-card: rgba(26, 26, 37, 0.8);
    --color-bg-glass: rgba(26, 26, 37, 0.6);

    --color-text-primary: #ffffff;
    --color-text-secondary: #b4b4c0;
    --color-text-muted: #6b6b7a;

    --color-accent-primary: #8b5cf6;
    --color-accent-secondary: #06b6d4;
    --color-accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    --color-accent-glow: rgba(139, 92, 246, 0.4);

    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-hover: rgba(139, 92, 246, 0.5);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 2rem;
    --fs-4xl: 2.5rem;
    --fs-5xl: 3.5rem;
    --fs-6xl: 4.5rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px var(--color-accent-glow);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-Index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-tooltip: 500;
}

/* Light Theme */
[data-theme="light"] {
    --color-bg-primary: #f8fafc;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #f1f5f9;
    --color-bg-card: rgba(255, 255, 255, 0.9);
    --color-bg-glass: rgba(255, 255, 255, 0.7);

    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;

    --color-border: rgba(0, 0, 0, 0.1);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.2);
}

/* ============ Reset & Base ============ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

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

ul,
ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

/* ============ Utility Classes ============ */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ============ Particles Background ============ */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--fs-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-accent-gradient);
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(139, 92, 246, 0.5);
}

.btn-primary i {
    transition: transform var(--transition-base);
}

.btn-primary:hover i {
    transform: translateX(4px);
}

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

.btn-outline:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
    background: rgba(139, 92, 246, 0.1);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--fs-base);
}

.btn-block {
    width: 100%;
}

/* ============ Navigation ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--spacing-md) 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: var(--color-bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--fs-xl);
    font-weight: 700;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-md);
    color: white;
    font-size: var(--fs-lg);
}

.logo-text .highlight {
    color: var(--color-accent-primary);
}

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

.nav-link {
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: var(--spacing-sm) 0;
}

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

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

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

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

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.theme-toggle:hover {
    color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: var(--transition-base);
}

/* ============ Hero Section ============ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: calc(80px + var(--spacing-4xl)) 0 var(--spacing-4xl);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.hero-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(139, 92, 246, 0.3);
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: rgba(6, 182, 212, 0.3);
    top: 60%;
    right: -5%;
    animation-delay: -5s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: rgba(139, 92, 246, 0.3);
    bottom: 10%;
    left: 30%;
    animation-delay: -10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(20px, -20px) rotate(5deg);
    }

    50% {
        transform: translate(-10px, 20px) rotate(-5deg);
    }

    75% {
        transform: translate(15px, 10px) rotate(3deg);
    }
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-xl);
}

.hero-badge i {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.hero-title {
    font-size: var(--fs-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-xl);
}

.hero-description {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-tech {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.tech-label {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

.tech-pills {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tech-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.tech-pill i {
    color: var(--color-accent-primary);
}

/* Hero Code Window */
.hero-visual {
    position: relative;
}

.hero-code-window {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.code-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
}

.code-dots {
    display: flex;
    gap: var(--spacing-sm);
}

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

.dot.red {
    background: #ef4444;
}

.dot.yellow {
    background: #f59e0b;
}

.dot.green {
    background: #10b981;
}

.code-title {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.code-body {
    padding: var(--spacing-lg);
    overflow-x: auto;
}

.code-body pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    line-height: 1.8;
}

.code-body code {
    color: var(--color-text-secondary);
}

.code-body .keyword {
    color: #c678dd;
}

.code-body .class-name {
    color: #e5c07b;
}

.code-body .variable {
    color: #e06c75;
}

.code-body .string {
    color: #98c379;
}

.code-body .function {
    color: #61afef;
}

/* Floating Icons */
.floating-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-icon {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--color-bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--fs-2xl);
    animation: floatIcon 6s ease-in-out infinite;
}

.icon-1 {
    top: -30px;
    left: -30px;
    color: #777bb3;
    animation-delay: 0s;
}

.icon-2 {
    top: 20%;
    right: -40px;
    color: #61dafb;
    animation-delay: -1.5s;
}

.icon-3 {
    bottom: 20%;
    right: -30px;
    color: #f7df1e;
    animation-delay: -3s;
}

.icon-4 {
    bottom: -20px;
    left: 20%;
    color: var(--color-accent-secondary);
    animation-delay: -4.5s;
}

@keyframes floatIcon {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-15px) rotate(5deg);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-text-muted);
    border-radius: 15px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-text-muted);
    border-radius: 2px;
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {

    0%,
    100% {
        transform: translateY(0);
        opacity: 1;
    }

    50% {
        transform: translateY(8px);
        opacity: 0.5;
    }
}

.arrow i {
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(5px);
    }
}

/* ============ Stats Section ============ */
.stats-section {
    padding: var(--spacing-4xl) 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
}

.stat-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-lg);
    font-size: var(--fs-xl);
    color: white;
}

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

.stat-value {
    font-size: var(--fs-3xl);
    font-weight: 800;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
}

/* ============ Section Styles ============ */
section {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--fs-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============ Services Section ============ */
.services-section {
    background: var(--color-bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.service-card {
    padding: var(--spacing-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-base);
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-lg);
    font-size: var(--fs-2xl);
    color: white;
    margin-bottom: var(--spacing-xl);
}

.service-title {
    font-size: var(--fs-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.service-description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.service-features {
    margin-bottom: var(--spacing-xl);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

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

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-accent-primary);
}

.service-link:hover {
    gap: var(--spacing-md);
}

/* ============ Portfolio Section ============ */
.portfolio-section {
    background: var(--color-bg-secondary);
}

.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    color: white;
    background: var(--color-accent-gradient);
    border-color: transparent;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.portfolio-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-base);
}

.portfolio-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.portfolio-image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.portfolio-placeholder i {
    font-size: var(--fs-4xl);
}

.portfolio-placeholder span {
    font-size: var(--fs-sm);
    font-weight: 500;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0;
    transition: var(--transition-base);
}

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

.portfolio-actions {
    display: flex;
    gap: var(--spacing-md);
}

.portfolio-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-lg);
    color: white;
    font-size: var(--fs-lg);
    transition: var(--transition-base);
    transform: translateY(20px);
}

.portfolio-card:hover .portfolio-btn {
    transform: translateY(0);
}

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

.portfolio-content {
    padding: var(--spacing-xl);
}

.portfolio-category {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--color-accent-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.portfolio-title {
    font-size: var(--fs-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.portfolio-description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.portfolio-tech {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tech-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
}

.portfolio-cta {
    text-align: center;
}

/* ============ About Section ============ */
.about-section {
    background: var(--color-bg-primary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about-content .section-badge {
    display: inline-block;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: var(--spacing-xl);
}

.about-text {
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.about-highlights {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

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

.highlight-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-md);
    color: white;
    font-size: var(--fs-lg);
}

.highlight-content h4 {
    font-size: var(--fs-base);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.highlight-content p {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
}

/* Tech Stack */
.tech-stack {
    padding: var(--spacing-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.tech-stack-title {
    font-size: var(--fs-lg);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.tech-item:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-5px);
}

.tech-item i {
    font-size: var(--fs-2xl);
    color: var(--color-accent-primary);
}

.tech-item span {
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
}

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

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
}

.contact-card:hover {
    border-color: var(--color-border-hover);
    transform: translateX(10px);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-lg);
    color: white;
    font-size: var(--fs-xl);
}

.contact-details h4 {
    font-size: var(--fs-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.contact-details a,
.contact-details span {
    font-size: var(--fs-base);
    color: var(--color-text-secondary);
}

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

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    position: relative;
}

.form-group label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    padding-left: 45px;
    font-size: var(--fs-base);
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.form-group:focus-within .form-icon {
    color: var(--color-accent-primary);
}

.form-group label+.form-icon {
    top: calc(50% + 12px);
}

.textarea-icon {
    top: 45px !important;
    transform: none;
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%236b6b7a' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 24px;
}

/* ============ Footer ============ */
.footer {
    position: relative;
    background: var(--color-bg-primary);
}

.footer-wave {
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    color: var(--color-bg-secondary);
    line-height: 0;
    z-index: 0;
    pointer-events: none;
}

.footer-wave svg {
    width: 100%;
    height: auto;
}

.footer-content {
    position: relative;
    z-index: 1;
    padding: var(--spacing-4xl) 0 var(--spacing-2xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--fs-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.footer-description {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-secondary);
    font-size: var(--fs-lg);
    transition: var(--transition-base);
}

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

.footer-links h4,
.footer-contact h4 {
    font-size: var(--fs-base);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links li {
    display: block;
}

.footer-links a {
    font-size: var(--fs-sm);
    color: #b4b4c0;
    display: block;
    padding: 4px 0;
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-accent-primary);
    padding-left: 5px;
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--fs-sm);
    color: #b4b4c0;
}

.footer-contact i {
    color: var(--color-accent-primary);
    width: 20px;
    flex-shrink: 0;
}

.footer-contact a {
    color: #b4b4c0;
}

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

.footer-bottom {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

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

.footer-bottom p {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
}

.footer-bottom i {
    color: var(--color-accent-primary);
}

/* ============ Responsive Design ============ */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-tech {
        justify-content: center;
    }

    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-content .section-title {
        text-align: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--fs-4xl);
    }

    .section-title {
        font-size: var(--fs-3xl);
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--color-bg-secondary);
        flex-direction: column;
        justify-content: center;
        padding: var(--spacing-2xl);
        transition: var(--transition-base);
        z-index: var(--z-fixed);
    }

    .nav-menu.active {
        right: 0;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-toggle {
        display: flex;
        z-index: calc(var(--z-fixed) + 1);
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .nav-actions .btn {
        display: none;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-bottom .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--fs-3xl);
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .portfolio-filter {
        gap: var(--spacing-xs);
    }

    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--fs-xs);
    }
}