/* ==========================================================================
   BEHANCE-STYLE PORTFOLIO - Enhanced CSS
   Created for Supriya Dwivedi
========================================================================== */

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

/* ==========================================================================
   CSS VARIABLES
========================================================================== */
:root {
    /* Behance-inspired Color Palette */
    --primary-color: #1769ff;
    --primary-dark: #0050d1;
    --primary-light: #4d94ff;
    --secondary-color: #2d2d2d;
    --accent-color: #ff3366;
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #f8f9fa;
    --light-gray: #e9ecef;
    --medium-gray: #adb5bd;
    --dark-gray: #495057;
    --black: #000000;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-dark: #1a1a1a;
    
    /* Text Colors */
    --text-primary: #2d2d2d;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --text-light: #ffffff;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1769ff 0%, #4d94ff 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', serif;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-fixed: 100;
    --z-modal: 1000;
}

/* ==========================================================================
   RESET & BASE STYLES
========================================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.loading {
    overflow: hidden;
}

ul {
    list-style: none;
}

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

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

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

input, textarea {
    font-family: inherit;
}

/* ==========================================================================
   REUSABLE COMPONENTS
========================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section__subtitle {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.section__title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    position: relative;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(23, 105, 255, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(23, 105, 255, 0.4);
}

.btn--outline {
    background: transparent;
    color: var(--secondary-color);
    border: 2px solid var(--light-gray);
}

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

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

.preloader.hide {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.loader {
    width: 50px;
    height: 50px;
    border: 3px solid var(--light-gray);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

.loader-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

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

/* ==========================================================================
   HEADER & NAVIGATION
========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-fixed);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.header.sticky {
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav__logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
}

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

.logo-dot {
    color: var(--primary-color);
    font-size: 2rem;
    line-height: 1;
}

.nav__menu {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    gap: 2rem;
}

.nav__link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

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

.nav__link:hover,
.nav__link.active {
    color: var(--primary-color);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    font-size: 1.75rem;
    cursor: pointer;
    color: var(--secondary-color);
}

.nav__close {
    display: none;
}

/* ==========================================================================
   HERO SECTION
========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: var(--off-white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 140%;
    background: linear-gradient(135deg, rgba(23, 105, 255, 0.05) 0%, rgba(77, 148, 255, 0.08) 100%);
    border-radius: 0 0 0 50%;
    z-index: 0;
}

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

.hero__content {
    animation: fadeInUp 0.8s ease;
}

.hero__subtitle {
    display: inline-block;
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1px;
}

.hero__title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.hero__typing {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    height: 2rem;
}

.typed-text {
    display: inline-block;
}

.cursor {
    display: inline-block;
    animation: blink 1s infinite;
    color: var(--primary-color);
}

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

.hero__description {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    max-width: 500px;
}

.hero__info {
    margin-bottom: var(--spacing-md);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.info-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.hero__buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: var(--spacing-lg);
}

.hero__social {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--secondary-color);
    font-size: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

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

.hero__image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 0.8s ease 0.2s both;
}

.image-wrapper {
    position: relative;
    width: 100%;
    max-width: 420px;
}

.hero-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    object-fit: cover;
    aspect-ratio: 1;
}

.image-shape {
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 3px solid var(--primary-color);
    border-radius: var(--radius-xl);
    z-index: -1;
}

.experience-badge {
    position: absolute;
    bottom: 30px;
    right: -10px;
    background: var(--white);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    animation: float 3s ease-in-out infinite;
}

.badge-number {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.badge-text {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.scroll-down {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-secondary);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* 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);
    }
}

/* ==========================================================================
   ABOUT SECTION
========================================================================== */
.about {
    background: var(--bg-primary);
}

.about__container {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about__image {
    position: relative;
}

.about__image img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.about__image-bg {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.1;
}

.about__content h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.about__content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about__stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--light-gray);
    border-bottom: 1px solid var(--light-gray);
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.about__buttons {
    display: flex;
    gap: 1rem;
}

/* ==========================================================================
   SERVICES SECTION
========================================================================== */
.services {
    background: var(--bg-secondary);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform var(--transition-base);
    transform-origin: bottom;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(23, 105, 255, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.service-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

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

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9375rem;
}

.service-link:hover {
    gap: 0.75rem;
}

.service-link i {
    transition: transform var(--transition-fast);
}

.service-link:hover i {
    transform: translateX(3px);
}

/* ==========================================================================
   SKILLS SECTION
========================================================================== */
.skills {
    background: var(--bg-primary);
}

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

.skills__content h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.skill-item {
    margin-bottom: var(--spacing-md);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

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

.skill-percent {
    font-weight: 600;
    color: var(--primary-color);
}

.skill-bar {
    height: 8px;
    background: var(--light-gray);
    border-radius: var(--radius-full);
    overflow: hidden;
}

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

.skill-progress.animated {
    width: var(--target-width);
}

.professional-skills {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

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

.progress-circle {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    background: conic-gradient(var(--primary-color) 0deg, var(--primary-color) var(--percent), var(--light-gray) var(--percent));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    position: relative;
}

.progress-circle::before {
    content: '';
    position: absolute;
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: var(--radius-full);
}

.progress-number {
    position: relative;
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.professional-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ==========================================================================
   EXPERIENCE SECTION
========================================================================== */
.experience {
    background: var(--bg-secondary);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--light-gray);
}

.timeline-item {
    position: relative;
    padding: var(--spacing-md) 0;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    padding-right: var(--spacing-lg);
    text-align: right;
}

.timeline-item:nth-child(even) {
    padding-left: var(--spacing-lg);
    margin-left: 50%;
}

.timeline-dot {
    position: absolute;
    top: calc(var(--spacing-md) + 10px);
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    border: 3px solid var(--white);
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -8px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -8px;
}

.timeline-content {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.timeline-date {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 0.25rem;
}

.timeline-content h4 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ==========================================================================
   PROJECTS SECTION
========================================================================== */
.projects {
    background: var(--bg-primary);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: var(--spacing-lg);
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    cursor: pointer;
}

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

.projects__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

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

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

.project-card:hover .project-image img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-link {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius-full);
    color: var(--secondary-color);
    font-size: 1.5rem;
    transform: scale(0);
    transition: transform var(--transition-base);
}

.project-card:hover .project-link {
    transform: scale(1);
}

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

.project-info {
    padding: var(--spacing-md);
}

.project-category {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: block;
}

.project-info h3 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.project-info p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   CONTACT SECTION
========================================================================== */
.contact {
    background: var(--bg-secondary);
}

.contact__container {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.contact__info h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.contact__info > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.contact-details {
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: var(--spacing-md);
}

.contact-item i {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(23, 105, 255, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-item .label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.contact-item a,
.contact-item span {
    color: var(--secondary-color);
    font-weight: 500;
}

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

.contact-social {
    display: flex;
    gap: 1rem;
}

.contact-social a {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    color: var(--secondary-color);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.contact-social a:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.contact__form {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

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

.contact__form input,
.contact__form textarea {
    width: 100%;
    padding: 1rem;
    font-size: 0.9375rem;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    background: var(--off-white);
    color: var(--secondary-color);
    transition: var(--transition-base);
}

.contact__form input:focus,
.contact__form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--white);
}

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

.contact__form textarea {
    resize: vertical;
    min-height: 150px;
}

/* ==========================================================================
   FOOTER
========================================================================== */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-md);
}

.footer__brand p {
    color: var(--medium-gray);
    margin-top: 0.5rem;
    font-size: 0.9375rem;
}

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

.footer__links a {
    color: var(--medium-gray);
    font-weight: 500;
    transition: var(--transition-base);
}

.footer__links a:hover {
    color: var(--white);
}

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

.footer__bottom p {
    font-size: 0.875rem;
    color: var(--medium-gray);
}

.back-to-top {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    transition: var(--transition-base);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(23, 105, 255, 0.4);
}

/* ==========================================================================
   RESPONSIVE DESIGN
========================================================================== */
@media (max-width: 1024px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero__description {
        margin: 0 auto var(--spacing-md);
    }
    
    .hero__buttons {
        justify-content: center;
    }
    
    .hero__social {
        justify-content: center;
    }
    
    .hero__image {
        order: -1;
    }
    
    .image-wrapper {
        max-width: 350px;
    }
    
    .about__container,
    .contact__container {
        grid-template-columns: 1fr;
    }
    
    .about__image {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .skills__container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
    
    .section__title {
        font-size: 2rem;
    }
    
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background: var(--white);
        box-shadow: var(--shadow-xl);
        flex-direction: column;
        justify-content: center;
        transition: right var(--transition-base);
    }
    
    .nav__menu.open {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        text-align: center;
    }
    
    .nav__link {
        font-size: 1.25rem;
    }
    
    .nav__toggle {
        display: block;
    }
    
    .nav__close {
        display: block;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        font-size: 1.75rem;
        cursor: pointer;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__typing {
        font-size: 1.25rem;
    }
    
    .about__stats {
        justify-content: center;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        width: 100%;
        padding-left: 60px;
        padding-right: 0;
        text-align: left;
        margin-left: 0;
    }
    
    .timeline-item:nth-child(odd) {
        text-align: left;
    }
    
    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 12px;
        right: auto;
    }
    
    .projects__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__buttons {
        flex-direction: column;
    }
    
    .about__stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .professional-skills {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filter-buttons {
        flex-wrap: wrap;
    }
    
    .contact__form {
        padding: var(--spacing-md);
    }
}

/* ==========================================================================
   SCROLL ANIMATIONS
========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* ==========================================================================
   UTILITY CLASSES
========================================================================== */
.text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.bg-primary { background-color: var(--primary-color); }

/* Hide elements */
.hide { display: none; }

/* Show elements */
.show { display: block; }

/* Smooth scroll indicator */
.smooth-scroll {
    scroll-behavior: smooth;
}