/* ================================
   CSS Variables & Design Tokens
   ================================ */
:root {
    /* Colors - Dark Mode */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --surface: #1e1e2a;
    --surface-hover: #252532;

    /* Accent Colors */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #22d3ee;
    --secondary-dark: #06b6d4;
    --accent-pink: #ec4899;
    --accent-purple: #a855f7;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    --gradient-text: linear-gradient(135deg, #fff 0%, var(--primary-light) 50%, var(--secondary) 100%);
    --gradient-card: linear-gradient(145deg, rgba(99, 102, 241, 0.1) 0%, rgba(34, 211, 238, 0.05) 100%);

    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;

    /* Effects */
    --glass-bg: rgba(30, 30, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-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;

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

    /* Layout */
    --container-max: 1200px;
    --navbar-height: 70px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--navbar-height);
}

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

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

ul,
ol {
    list-style: none;
}

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

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

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

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

.highlight {
    color: var(--primary-light);
    font-weight: 600;
}

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

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite ease-in-out;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }

    25% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.6;
    }

    50% {
        transform: translateY(-50px) translateX(-30px);
        opacity: 0.3;
    }

    75% {
        transform: translateY(-150px) translateX(20px);
        opacity: 0.5;
    }
}

/* ================================
   Navigation
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    z-index: 1000;
    transition: var(--transition-base);
}

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

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    border-radius: inherit;
    transition: inherit;
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

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

.btn i {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm), 0 0 20px rgba(99, 102, 241, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

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

.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

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

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

/* ================================
   Hero Section
   ================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding-top: var(--navbar-height);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 100%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 60%;
    height: 80%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-greeting {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 5vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease 0.1s forwards;
    opacity: 0;
}

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

.name-accent {
    display: block;
    color: var(--primary-light);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--secondary);
    margin-bottom: var(--spacing-lg);
    min-height: 30px;
    animation: fadeInUp 0.6s ease 0.2s forwards;
    opacity: 0;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    animation: fadeInUp 0.6s ease 0.3s forwards;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.4s forwards;
    opacity: 0;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 0.8s ease 0.3s forwards;
    opacity: 0;
}

.image-wrapper {
    position: relative;
    width: 350px;
    height: 350px;
}

.image-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.3;
    filter: blur(40px);
    animation: pulse 4s infinite ease-in-out;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.3;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    position: relative;
    z-index: 2;
}

.image-border {
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    border: 3px solid transparent;
    background: var(--gradient-primary) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: rotate 10s linear infinite;
}

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

    to {
        transform: rotate(360deg);
    }
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    animation: floatCard 3s ease-in-out infinite;
    z-index: 3;
}

.floating-card i {
    width: 20px;
    height: 20px;
    color: var(--primary-light);
}

.card-1 {
    top: 15%;
    right: -10%;
    animation-delay: 0s;
}

.card-2 {
    bottom: 15%;
    left: -5%;
    animation-delay: 1.5s;
}

@keyframes floatCard {

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

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

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-tertiary);
    font-size: var(--font-size-xs);
    animation: fadeIn 1s ease 1s forwards;
    opacity: 0;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-tertiary);
    border-radius: var(--radius-full);
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--text-tertiary);
    border-radius: var(--radius-full);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-subtitle {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-4xl));
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ================================
   About Section
   ================================ */
.about {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about-img-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-img-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0.1;
    z-index: 1;
}

.about-img-wrapper img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    transition: var(--transition-slow);
}

.about-img-wrapper:hover img {
    transform: scale(1.05);
}

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

.about-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-base);
}

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

.about-card i {
    width: 32px;
    height: 32px;
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.about-card h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.about-card p {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

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

/* ================================
   Skills Section
   ================================ */
.skills {
    background: var(--bg-secondary);
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.skill-card {
    background: var(--gradient-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

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

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

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

.skill-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.skill-icon i {
    width: 28px;
    height: 28px;
    color: var(--text-primary);
}

.skill-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.skill-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.skill-level {
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.level-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1s ease;
}

/* ================================
   Experience Section
   ================================ */
.experience {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

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

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    padding-bottom: var(--spacing-2xl);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: 12px;
    top: 0;
    width: 18px;
    height: 18px;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

.timeline-marker::before {
    content: '';
    position: absolute;
    inset: 4px;
    background: var(--bg-primary);
    border-radius: 50%;
}

.timeline-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
}

.timeline-content:hover {
    transform: translateX(10px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.timeline-date {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.timeline-date i {
    width: 16px;
    height: 16px;
}

.timeline-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.timeline-content h4 {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--secondary);
    margin-bottom: var(--spacing-md);
}

.timeline-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tag {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--primary-light);
    background: rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-full);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

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

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

.contact-info h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.contact-info>p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.contact-card:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.contact-icon i {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
}

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

.contact-details p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

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

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition-base);
}

.social-link i {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    background: var(--gradient-primary);
    color: var(--text-primary);
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.contact-form {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    padding-top: var(--spacing-lg);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition-base);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group label {
    position: absolute;
    top: 50%;
    left: var(--spacing-md);
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    pointer-events: none;
    transition: var(--transition-base);
}

.form-group textarea~label {
    top: var(--spacing-lg);
    transform: none;
}

.form-group input:focus~label,
.form-group input:valid~label,
.form-group textarea:focus~label,
.form-group textarea:valid~label {
    top: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--primary-light);
    transform: none;
}

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.footer-logo .logo-text {
    font-size: var(--font-size-2xl);
}

.footer-logo p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: flex;
    gap: var(--spacing-xl);
}

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

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

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

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

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

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

/* ================================
   Responsive Design - All Platforms
   ================================ */

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
    :root {
        --container-max: 1320px;
    }

    .hero-title {
        font-size: var(--font-size-6xl);
    }

    .image-wrapper {
        width: 400px;
        height: 400px;
    }

    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Desktop (1200px - 1439px) */
@media (max-width: 1439px) and (min-width: 1200px) {
    .hero-container {
        gap: var(--spacing-3xl);
    }

    .image-wrapper {
        width: 320px;
        height: 320px;
    }
}

/* Small Desktop / Tablet Landscape (1024px - 1199px) */
@media (max-width: 1199px) and (min-width: 1024px) {
    .hero-container {
        gap: var(--spacing-2xl);
    }

    .image-wrapper {
        width: 300px;
        height: 300px;
    }

    .about-content {
        gap: var(--spacing-2xl);
    }

    .floating-card.card-1 {
        right: -5%;
    }

    .floating-card.card-2 {
        left: 0;
    }
}

/* Tablet Landscape (992px - 1023px) */
@media (max-width: 1023px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-2xl);
    }

    .hero-content {
        max-width: none;
        order: 2;
    }

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

    .hero-image {
        order: 1;
    }

    .image-wrapper {
        width: 280px;
        height: 280px;
    }

    .floating-card.card-1 {
        right: 20%;
        top: 5%;
    }

    .floating-card.card-2 {
        left: 20%;
        bottom: 5%;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

    .about-text {
        text-align: center;
    }

    .about-text .btn {
        margin: 0 auto;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .contact-info {
        text-align: center;
    }

    .contact-cards {
        max-width: 400px;
        margin: 0 auto var(--spacing-xl);
    }

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

/* Tablet Portrait (768px - 991px) */
@media (max-width: 991px) and (min-width: 768px) {
    :root {
        --spacing-4xl: 4rem;
        --font-size-5xl: 3rem;
        --font-size-6xl: 3.5rem;
    }

    section {
        padding: var(--spacing-3xl) 0;
    }

    .about-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }

    .about-card {
        padding: var(--spacing-md);
    }

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

    .timeline {
        max-width: 100%;
    }
}

/* Mobile Landscape / Small Tablet (576px - 767px) */
@media (max-width: 767px) {
    :root {
        --navbar-height: 60px;
        --spacing-4xl: 3rem;
        --spacing-3xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-5xl: 2.5rem;
        --font-size-6xl: 3rem;
    }

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

    /* Navigation */
    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-xl) var(--spacing-lg);
        gap: var(--spacing-xs);
        border-bottom: 1px solid var(--glass-border);
        transform: translateX(100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--spacing-md);
        width: 100%;
        text-align: center;
        border-radius: var(--radius-md);
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--surface-hover);
    }

    .nav-toggle {
        display: flex;
    }

    /* Hero */
    .hero {
        min-height: calc(100vh - var(--navbar-height));
        padding: var(--spacing-xl) 0;
    }

    .hero-greeting {
        font-size: var(--font-size-base);
    }

    .hero-description {
        font-size: var(--font-size-base);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

    .image-wrapper {
        width: 220px;
        height: 220px;
    }

    .floating-card {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }

    .floating-card.card-1 {
        right: 10%;
        top: 0;
    }

    .floating-card.card-2 {
        left: 10%;
        bottom: 0;
    }

    .scroll-indicator {
        display: none;
    }

    /* About */
    .about-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xs);
    }

    .about-card {
        padding: var(--spacing-sm);
    }

    .about-card i {
        width: 24px;
        height: 24px;
    }

    .about-card h3 {
        font-size: var(--font-size-xs);
    }

    .about-card p {
        font-size: 10px;
    }

    /* Skills */
    .skills-grid {
        grid-template-columns: 1fr;
    }

    .skill-card {
        padding: var(--spacing-lg);
    }

    .skill-icon {
        width: 50px;
        height: 50px;
    }

    .skill-icon i {
        width: 24px;
        height: 24px;
    }

    /* Timeline */
    .timeline::before {
        left: 10px;
    }

    .timeline-item {
        padding-left: 40px;
    }

    .timeline-marker {
        left: 2px;
        width: 16px;
        height: 16px;
    }

    .timeline-content {
        padding: var(--spacing-lg);
    }

    .timeline-content h3 {
        font-size: var(--font-size-lg);
    }

    /* Contact */
    .contact-form {
        padding: var(--spacing-lg);
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }
}

/* Mobile Portrait (480px - 575px) */
@media (max-width: 575px) and (min-width: 481px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

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

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

/* Small Mobile (320px - 480px) */
@media (max-width: 480px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --font-size-3xl: 1.5rem;
        --font-size-4xl: 1.75rem;
        --font-size-5xl: 2rem;
    }

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

    .image-wrapper {
        width: 180px;
        height: 180px;
    }

    .floating-card {
        display: none;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-md) var(--spacing-lg);
    }

    .about-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .about-card {
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
        text-align: left;
        padding: var(--spacing-md);
    }

    .about-card i {
        margin-bottom: 0;
    }

    .about-card h3,
    .about-card p {
        margin: 0;
    }

    .about-card>div {
        display: flex;
        flex-direction: column;
    }

    .timeline-content:hover {
        transform: none;
    }

    .contact-card:hover {
        transform: none;
    }

    .social-links {
        flex-wrap: wrap;
    }

    .social-link {
        width: 40px;
        height: 40px;
    }
}

/* Extra Small Mobile (< 320px) */
@media (max-width: 320px) {
    :root {
        --font-size-base: 0.875rem;
        --font-size-lg: 1rem;
        --font-size-xl: 1.125rem;
        --font-size-2xl: 1.25rem;
        --font-size-3xl: 1.375rem;
    }

    .image-wrapper {
        width: 150px;
        height: 150px;
    }

    .nav-link {
        font-size: var(--font-size-base);
    }

    .section-header {
        margin-bottom: var(--spacing-xl);
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        transform: none;
    }

    .skill-card:hover {
        transform: none;
    }

    .about-card:hover {
        transform: none;
    }

    .timeline-content:hover {
        transform: none;
    }

    .contact-card:hover {
        transform: none;
    }

    .social-link:hover {
        transform: none;
    }

    /* Larger touch targets */
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .btn {
        min-height: 48px;
    }

    .social-link {
        min-width: 48px;
        min-height: 48px;
    }
}

/* Landscape Phone Orientation */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

    .hero-container {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }

    .hero-content {
        order: 1;
    }

    .hero-image {
        order: 2;
    }

    .hero-buttons {
        justify-content: flex-start;
    }

    .image-wrapper {
        width: 150px;
        height: 150px;
    }

    .scroll-indicator {
        display: none;
    }
}

/* High DPI / Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
    .image-glow {
        filter: blur(30px);
    }
}

/* Reduced Motion for Accessibility */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .particle {
        display: none;
    }

    .image-border {
        animation: none;
    }

    .floating-card {
        animation: none;
    }

    .typing-text::after {
        animation: none;
    }
}

/* Print Styles */
@media print {

    .navbar,
    .scroll-indicator,
    #particles,
    .floating-card,
    .contact-form {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    section {
        page-break-inside: avoid;
    }

    .hero {
        min-height: auto;
    }
}