/* ============================================
   SANTOSH PORTFOLIO - PREMIUM STYLES
   Dark Modern UI with Glassmorphism Effects
   ============================================ */

/* CSS Variables & Design System */
:root {
    /* Colors - Dark Theme (Default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(26, 26, 37, 0.6);
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #ec4899;
    
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-glow: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 120px;
    --container-max: 1280px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #fafafa;
    --bg-secondary: #f0f0f5;
    --bg-tertiary: #e8e8f0;
    --bg-card: rgba(255, 255, 255, 0.8);
    
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #7a7a8a;
    
    --border-color: rgba(0, 0, 0, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.1);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.2);
}

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

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-slow), color var(--transition-slow);
}

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

ul {
    list-style: none;
}

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

/* Page Loader */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-circle {
    width: 60px;
    height: 60px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.loader-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--text-primary);
}

.dots {
    animation: dots 1.5s steps(4, end) infinite;
}

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

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Custom Cursor */
.custom-cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.15s ease, background-color 0.15s ease;
    transform: translate(-50%, -50%);
    mix-blend-mode: difference;
}

.custom-cursor.hover {
    transform: translate(-50%, -50%) scale(1.5);
    background-color: rgba(99, 102, 241, 0.2);
}

.cursor-trail {
    position: fixed;
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9997;
    opacity: 0.5;
    transition: opacity 0.3s ease;
    transform: translate(-50%, -50%);
}

/* Scroll Progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 9996;
    width: 0%;
    transition: width 0.1s ease;
}

/* Glassmorphism */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Section Styles */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-primary);
    margin-bottom: 16px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 50px;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 15px 0;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
}

.logo-text {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

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

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 50px;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--glass-bg);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
    transform: scale(1.05);
}

.theme-toggle i {
    position: absolute;
    transition: all var(--transition-normal);
}

.theme-toggle .fa-sun {
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

.theme-toggle .fa-moon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="light"] .theme-toggle .fa-sun {
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="light"] .theme-toggle .fa-moon {
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    z-index: 1;
    pointer-events: none;
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    color: #22c55e;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-family: var(--font-display);
    margin-bottom: 16px;
}

.title-line {
    display: block;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.title-name {
    display: block;
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-typing {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    color: var(--text-secondary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.typing-prefix {
    color: var(--text-muted);
}

.typing-text {
    color: var(--accent-primary);
    font-weight: 600;
}

.typing-cursor {
    color: var(--accent-primary);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--accent-primary);
}

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

.btn-outline:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

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

.social-link {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

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

.hero-image-container {
    position: relative;
    width: 400px;
    height: 400px;
}

.hero-image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    background: var(--gradient-primary);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: glow-pulse 4s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.7; }
}

.hero-image {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 30px;
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-placeholder {
    width: 200px;
    height: 200px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    color: white;
}

.floating-icons {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--accent-primary);
    animation: float 6s ease-in-out infinite;
    animation-delay: var(--delay);
    box-shadow: var(--shadow-md);
}

.float-icon:nth-child(1) { top: 10%; left: -10%; }
.float-icon:nth-child(2) { top: 60%; left: -15%; }
.float-icon:nth-child(3) { top: 20%; right: -10%; }
.float-icon:nth-child(4) { top: 70%; right: -15%; }
.float-icon:nth-child(5) { bottom: 10%; left: 50%; transform: translateX(-50%); }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* Hero Scroll */
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
    animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    50.1% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    padding: 20px;
}

.frame-corner {
    position: absolute;
    width: 40px;
    height: 40px;
    border: 3px solid var(--accent-primary);
}

.frame-corner.top-left { top: 0; left: 0; border-right: none; border-bottom: none; }
.frame-corner.top-right { top: 0; right: 0; border-left: none; border-bottom: none; }
.frame-corner.bottom-left { bottom: 0; left: 0; border-right: none; border-top: none; }
.frame-corner.bottom-right { bottom: 0; right: 0; border-left: none; border-top: none; }

.about-avatar {
    width: 100%;
    aspect-ratio: 1;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: white;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-card {
    padding: 40px;
}

.about-name {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.about-location {
    color: var(--text-secondary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.about-location i {
    color: var(--accent-primary);
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.about-text p {
    margin-bottom: 16px;
}

.about-stats {
    display: flex;
    gap: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.info-card {
    padding: 30px;
    text-align: center;
    transition: all var(--transition-fast);
}

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

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin: 0 auto 16px;
}

.info-card h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.info-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.info-card span {
    color: var(--accent-primary);
    font-size: 0.85rem;
}

/* Education Section */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-primary), var(--accent-tertiary));
}

.timeline-item {
    position: relative;
    padding: 40px 0;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    border: 4px solid var(--bg-primary);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
    z-index: 1;
}

.timeline-content {
    width: calc(50% - 40px);
    margin-left: auto;
    padding: 30px;
    position: relative;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 0;
    margin-right: auto;
}

.timeline-date {
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.timeline-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.timeline-institution {
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 12px;
}

.timeline-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.skill-category {
    padding: 30px;
}

.category-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-title i {
    color: var(--accent-primary);
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    position: relative;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.skill-name {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.skill-name i {
    color: var(--accent-primary);
    font-size: 1.1rem;
}

.skill-percent {
    font-family: var(--font-display);
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 600;
}

.skill-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0%;
    transition: width 1.5s ease;
}

/* Tech Stack */
.tech-stack {
    text-align: center;
}

.stack-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.stack-icons {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.stack-icon {
    width: 70px;
    height: 70px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.stack-icon:hover {
    transform: translateY(-5px) scale(1.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.project-card {
    overflow: hidden;
    transition: all var(--transition-fast);
    position: relative;
}

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

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--accent-primary);
    transition: transform var(--transition-slow);
}

.project-card:hover .project-placeholder {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.project-links {
    display: flex;
    gap: 16px;
}

.project-link {
    width: 50px;
    height: 50px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    transform: translateY(20px);
    opacity: 0;
}

.project-card:hover .project-link {
    transform: translateY(0);
    opacity: 1;
}

.project-link:nth-child(2) {
    transition-delay: 0.1s;
}

.project-link:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.project-content {
    padding: 30px;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    padding: 6px 14px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 500;
}

/* Stats Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    padding: 40px 30px;
    text-align: center;
    transition: all var(--transition-fast);
}

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

.stat-card .stat-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    font-size: 1.75rem;
}

.stat-card .stat-number {
    font-size: 3rem;
    margin-bottom: 8px;
}

.stat-card .stat-label {
    font-size: 1rem;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    padding: 40px 30px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-fast);
}

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

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.service-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.service-hover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 0;
}

.service-card:hover .service-hover {
    opacity: 0.05;
}

/* Achievements Section */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.achievement-card {
    padding: 40px 30px;
    text-align: center;
    transition: all var(--transition-fast);
}

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

.achievement-icon {
    width: 80px;
    height: 80px;
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--accent-primary);
    margin: 0 auto 24px;
    transition: all var(--transition-fast);
}

.achievement-card:hover .achievement-icon {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: rotateY(360deg);
}

.achievement-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.achievement-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Testimonials Section */
.testimonial-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

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

.testimonial-card {
    min-width: 100%;
    padding: 40px;
}

.testimonial-content {
    text-align: center;
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 24px;
}

.testimonial-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.author-info {
    text-align: left;
}

.author-info h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 4px;
}

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

.testimonial-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.testimonial-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.testimonial-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.testimonial-dots {
    display: flex;
    gap: 10px;
}

.testimonial-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.testimonial-dot.active {
    background: var(--accent-primary);
    width: 30px;
    border-radius: 6px;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-card {
    padding: 40px;
}

.contact-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.contact-details h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 6px;
}

.contact-details a,
.contact-details span {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

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

.contact-socials {
    display: flex;
    gap: 12px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.social-btn {
    width: 45px;
    height: 45px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

.map-container {
    overflow: hidden;
    padding: 0;
}

.map-container iframe {
    display: block;
}

/* Contact Form */
.contact-form-container {
    position: relative;
}

.contact-form {
    padding: 40px;
}

.contact-form h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 30px;
}

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

.input-wrapper {
    position: relative;
}

.input-wrapper input,
.input-wrapper textarea {
    width: 100%;
    padding: 16px 20px;
    padding-left: 50px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.input-wrapper input:focus,
.input-wrapper textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.input-wrapper label {
    position: absolute;
    left: 50px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: all var(--transition-fast);
}

.input-wrapper textarea + label {
    top: 24px;
    transform: none;
}

.input-wrapper input:focus + label,
.input-wrapper input:not(:placeholder-shown) + label,
.input-wrapper textarea:focus + label,
.input-wrapper textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 16px;
    transform: none;
    font-size: 0.75rem;
    color: var(--accent-primary);
    background: var(--bg-secondary);
    padding: 0 8px;
}

.input-wrapper i {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
}

.input-wrapper textarea + label + i {
    top: 24px;
    transform: none;
}

.input-wrapper input:focus ~ i,
.input-wrapper textarea:focus ~ i {
    color: var(--accent-primary);
}

.btn-submit {
    width: 100%;
    justify-content: center;
}

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

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
}

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

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    width: 45px;
    height: 45px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.footer-socials a:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-bottom i {
    color: #ef4444;
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-fast);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.5);
}

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

@media (max-width: 992px) {
    :root {
        --section-padding: 80px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-socials {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-image-container {
        width: 300px;
        height: 300px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-line {
        left: 20px;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px !important;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        transform: translateY(-150%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
    }
    
    .about-cards {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .custom-cursor,
    .cursor-trail {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .float-icon {
        display: none;
    }
}

/* Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Tilt Effect */
[data-tilt] {
    transform-style: preserve-3d;
    transform: perspective(1000px);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* Selection */
::selection {
    background: var(--accent-primary);
    color: white;
}