/* ============================================
   PORTFOLIO — DESIGN SYSTEM & STYLES
   ============================================ */

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-purple: #7c3aed;
    --accent-cyan: #06b6d4;
    --accent-rose: #f43f5e;
    --accent-amber: #f59e0b;
    --gradient-main: linear-gradient(135deg, #7c3aed, #06b6d4);
    --gradient-hero: linear-gradient(135deg, #0a0e1a 0%, #1e1145 25%, #0f1729 50%, #0a2540 75%, #0a0e1a 100%);
    --gradient-card: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(6, 182, 212, 0.1));
    --gradient-border: linear-gradient(135deg, #7c3aed, #06b6d4, #f43f5e);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-body: 'Inter', sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Gradient Text ---------- */
.gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---------- Particle Canvas ---------- */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

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

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-bracket {
    color: var(--accent-cyan);
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(124, 58, 237, 0.1);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--gradient-main);
    border-radius: 2px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.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);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-hero);
    padding: 120px 24px 60px;
}

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

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 500px;
    height: 500px;
    background: rgba(124, 58, 237, 0.3);
    top: -10%;
    left: -10%;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: rgba(6, 182, 212, 0.25);
    bottom: -5%;
    right: -5%;
    animation-delay: -7s;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: rgba(244, 63, 94, 0.2);
    top: 40%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes float {

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

    25% {
        transform: translate(30px, -40px) scale(1.05);
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }

    75% {
        transform: translate(15px, 30px) scale(1.02);
    }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    max-width: 800px;
}

/* Hero elements animate in via pure CSS */
.hero-greeting {
    font-size: 1.2rem;
    color: var(--accent-cyan);
    margin-bottom: 12px;
    font-weight: 500;
    animation: heroFadeIn 0.8s ease 0.2s both;
}

.hero-name {
    animation: heroFadeIn 0.8s ease 0.4s both;
}

.hero-title {
    animation: heroFadeIn 0.8s ease 0.6s both;
}

.hero-description {
    animation: heroFadeIn 0.8s ease 0.8s both;
}

.hero-cta {
    animation: heroFadeIn 0.8s ease 1s both;
}

.hero-social {
    animation: heroFadeIn 0.8s ease 1.2s both;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(25px);
    }

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

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    min-height: 2rem;
}

.cursor {
    animation: blink 1s step-end infinite;
    color: var(--accent-cyan);
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-main);
    color: #fff;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}

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

.btn-outline:hover {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.1);
    transform: translateY(-2px);
}

.hero-social {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition);
    background: var(--glass-bg);
}

.social-link:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.3);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    animation: fadeInUp 1s ease 2s both;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 14px;
    position: relative;
}

.mouse-wheel {
    width: 3px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 3px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
    0% {
        opacity: 1;
        top: 6px;
    }

    100% {
        opacity: 0;
        top: 24px;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* ============================================
   SECTIONS (general)
   ============================================ */
.section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

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

.section-subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.title-underline {
    width: 60px;
    height: 4px;
    background: var(--gradient-main);
    border-radius: 4px;
    margin: 0 auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--gradient-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 1rem;
    border: 2px dashed var(--glass-border);
    border-radius: var(--radius-lg);
}

.image-placeholder i {
    font-size: 3rem;
}

.image-border {
    position: absolute;
    inset: -8px;
    border: 2px solid transparent;
    border-radius: calc(var(--radius-lg) + 8px);
    background: var(--gradient-border) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    z-index: -1;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 110px;
    height: 110px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    border: 4px solid var(--bg-primary);
}

.exp-number {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
}

.exp-text {
    font-size: 0.7rem;
    text-align: center;
    line-height: 1.3;
}

.about-heading {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 20px;
    line-height: 1.4;
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.about-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 24px 0;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
}

.info-item i {
    color: var(--accent-purple);
    font-size: 1.1rem;
}

.info-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.info-value {
    font-weight: 500;
    font-size: 0.9rem;
}

.info-value.available {
    color: #34d399;
}

.tech-stack {
    margin-top: 24px;
}

.tech-stack h4 {
    font-family: var(--font-heading);
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.stack-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    transition: var(--transition);
}

.badge:hover {
    border-color: var(--accent-purple);
    color: var(--text-primary);
    background: rgba(124, 58, 237, 0.1);
    transform: translateY(-2px);
}

.badge i {
    font-size: 1rem;
}

/* ============================================
   ACHIEVEMENTS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.stat-card {
    text-align: center;
    padding: 36px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0;
    transition: var(--transition);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
    border-color: rgba(124, 58, 237, 0.3);
}

.stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--gradient-main);
    font-size: 1.4rem;
    position: relative;
    z-index: 1;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.stat-number::after {
    content: '+';
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 4px;
    position: relative;
    z-index: 1;
}

.achievement-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.achievement-card {
    padding: 32px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.achievement-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-main);
    opacity: 0;
    transition: var(--transition);
}

.achievement-card:hover {
    transform: translateY(-4px);
    border-color: rgba(124, 58, 237, 0.3);
}

.achievement-card:hover::after {
    opacity: 1;
}

.ach-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(124, 58, 237, 0.15);
    color: var(--accent-purple);
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.achievement-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.achievement-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.ach-year {
    display: inline-block;
    margin-top: 14px;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-cyan);
    border: 1px solid rgba(6, 182, 212, 0.2);
}

/* ============================================
   CAREER TIMELINE
   ============================================ */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-purple), var(--accent-cyan), var(--accent-rose));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

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

.timeline-dot {
    position: absolute;
    left: -33px;
    top: 8px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--gradient-main);
    border: 4px solid var(--bg-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.3);
    z-index: 2;
}

.timeline-content {
    padding: 28px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: rgba(124, 58, 237, 0.3);
    transform: translateX(6px);
}

.timeline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.timeline-content h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
}

.timeline-company {
    font-size: 0.85rem;
    color: var(--accent-cyan);
}

.timeline-company i {
    margin-right: 4px;
}

.timeline-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: block;
}

.timeline-date i {
    margin-right: 6px;
}

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

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.timeline-tags span {
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    background: rgba(124, 58, 237, 0.1);
    color: var(--accent-purple);
    border: 1px solid rgba(124, 58, 237, 0.2);
}

/* ============================================
   CERTIFICATIONS
   ============================================ */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.cert-card {
    padding: 32px;
    text-align: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.cert-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-main);
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

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

.cert-card:hover {
    transform: translateY(-6px);
    border-color: rgba(124, 58, 237, 0.3);
    box-shadow: var(--shadow-glow);
}

.cert-logo {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    font-size: 1.8rem;
    color: var(--accent-cyan);
}

.cert-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: 8px;
    line-height: 1.4;
}

.cert-issuer {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.cert-date {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 8px;
}

.cert-date i {
    margin-right: 4px;
}

.cert-badge {
    display: inline-block;
    margin-top: 14px;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    background: rgba(52, 211, 153, 0.1);
    color: #34d399;
    border: 1px solid rgba(52, 211, 153, 0.2);
}

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-info h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    margin-bottom: 16px;
}

.contact-info>p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    color: var(--accent-purple);
    font-size: 1.1rem;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.contact-item a,
.contact-item span {
    font-weight: 500;
    font-size: 0.95rem;
}

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

.contact-socials {
    display: flex;
    gap: 12px;
}

.contact-social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 1.1rem;
    background: var(--glass-bg);
    transition: var(--transition);
}

.contact-social-link:hover {
    background: var(--gradient-main);
    color: #fff;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
}

/* ---------- Form ---------- */
.contact-form {
    padding: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.form-group {
    position: relative;
    margin-bottom: 28px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--glass-border);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

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

.form-group label {
    position: absolute;
    left: 0;
    top: 14px;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
    pointer-events: none;
}

.form-group input:focus~label,
.form-group input:not(:placeholder-shown)~label,
.form-group textarea:focus~label,
.form-group textarea:not(:placeholder-shown)~label {
    top: -10px;
    font-size: 0.75rem;
    color: var(--accent-cyan);
}

.form-group .form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: var(--transition);
}

.form-group input:focus~.form-line,
.form-group textarea:focus~.form-line {
    width: 100%;
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 16px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: 40px 0;
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--glass-border);
    background: rgba(10, 14, 26, 0.8);
}

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

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: var(--gradient-main);
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}

/* ============================================
   REVEAL ANIMATIONS — CSS-only with JS enhancement
   ============================================ */

/* Hero elements: always visible, animated by @keyframes above */
#home .reveal {
    opacity: 1 !important;
    transform: none !important;
}

/* Default: content is visible (works without JS) */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* JS adds .js-reveal-init to body, THEN hides elements for reveal animation */
.js-reveal-init .reveal:not(#home .reveal) {
    opacity: 0;
    transform: translateY(30px);
}

/* When JS reveals them */
.js-reveal-init .reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        max-width: 350px;
        margin: 0 auto;
    }

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 14, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 32px 32px;
        gap: 4px;
        transition: 0.4s ease;
        border-left: 1px solid var(--glass-border);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-toggle {
        display: block;
    }

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

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

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

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

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

    .hero-name {
        font-size: clamp(2rem, 8vw, 3.5rem);
    }

    .contact-form {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 24px 12px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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