/* ============================================================
   SULTHAN – Futuristic Multi-Experience Portfolio
   Cinematic Theme with Solar Orange & Cyber Red
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #000000;
    --bg-secondary: #111111;
    --bg-card: rgba(255, 255, 255, 0.02);
    --text-primary: #ffffff;
    --text-secondary: #8a8a8a;
    --text-muted: #555555;

    /* Dual Accent Colors */
    --accent-design: #FF0000;
    --accent-design-soft: #cc0000;
    --accent-design-glow: rgba(255, 0, 0, 0.35);
    --accent-design-subtle: rgba(255, 0, 0, 0.08);

    --accent-web3: #FF4500;
    --accent-web3-soft: #e03e00;
    --accent-web3-glow: rgba(255, 69, 0, 0.35);
    --accent-web3-subtle: rgba(255, 69, 0, 0.08);

    /* Active accent (toggled via JS) */
    --accent: var(--accent-design);
    --accent-glow: var(--accent-design-glow);
    --accent-subtle: var(--accent-design-subtle);

    /* Glass */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-border-hover: rgba(255, 255, 255, 0.12);

    /* Fonts */
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 1px;
}

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

ul {
    list-style: none;
}

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

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

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 3rem);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 3.5rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
    box-shadow: 0 0 12px var(--accent-glow);
    transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
}

.section-header {
    text-align: left;
    margin-bottom: 3.5rem;
}

.highlight {
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
    transition: color var(--transition-smooth), text-shadow var(--transition-smooth);
}

/* Reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============================================================
   NAVIGATION
   ============================================================ */
.glass-nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
    transition: background var(--transition-smooth);
}

.glass-nav.scrolled {
    background: rgba(0, 0, 0, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.logo .dot {
    color: var(--accent);
    transition: color var(--transition-smooth);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease, background var(--transition-smooth);
    box-shadow: 0 0 8px var(--accent-glow);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.btn-contact-nav {
    padding: 0.55rem 1.8rem !important;
    border: 1.5px solid var(--accent);
    border-radius: 30px;
    color: var(--accent) !important;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: all var(--transition-fast), border-color var(--transition-smooth), color var(--transition-smooth);
    box-shadow: 0 0 12px rgba(255, 0, 0, 0.12);
}

.btn-contact-nav:hover {
    background: var(--accent);
    color: var(--bg-primary) !important;
    box-shadow: 0 0 25px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-contact-nav::after {
    display: none !important;
}

.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger .line {
    width: 26px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.hamburger.active .line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section {
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    position: relative;
    overflow: hidden;
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    padding: 0 5%;
    max-width: 900px;
    margin-left: 12%;
}

.hero-tagline {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--accent);
    margin-bottom: 1rem;
    transition: color var(--transition-smooth);
}

.hero-content h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 1.2rem;
    letter-spacing: 3px;
}

.hero-content h1 .name-highlight {
    display: block;
    background: linear-gradient(135deg, var(--accent-design), var(--accent-web3));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.typewriter {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    height: 1.5rem;
}

.dynamic-text {
    color: var(--accent);
    font-weight: 600;
    border-right: 2px solid var(--accent);
    padding-right: 4px;
    animation: blink 0.75s step-end infinite;
    transition: color var(--transition-smooth), border-color var(--transition-smooth);
}

@keyframes blink {
    50% {
        border-color: transparent;
    }
}

.hero-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    max-width: 500px;
}

.hero-desc strong {
    color: var(--text-primary);
}

.cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.85rem 2rem;
    border-radius: 50px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 25px var(--accent-glow);
    transition: all var(--transition-fast), background var(--transition-smooth), box-shadow var(--transition-smooth);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 35px var(--accent-glow);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-3px);
}

/* Ambient gradient overlays */
.hero-gradient-1 {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: var(--accent-design);
    filter: blur(180px);
    opacity: 0;
    top: -200px;
    right: -100px;
    z-index: 0;
    pointer-events: none;
}

.hero-gradient-2 {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: var(--accent-web3);
    filter: blur(180px);
    opacity: 0;
    bottom: -200px;
    left: -100px;
    z-index: 0;
    pointer-events: none;
}

/* ============================================================
   CATEGORY TOGGLE
   ============================================================ */
.category-toggle-section {
    padding: 2rem 0 4rem;
    display: flex;
    justify-content: center;
}

.category-toggle {
    display: inline-flex;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    padding: 5px;
    position: relative;
}

.toggle-btn {
    padding: 0.75rem 2rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 50px;
    transition: all var(--transition-fast);
    position: relative;
    z-index: 2;
}

.toggle-btn.active {
    color: var(--bg-primary);
}

.toggle-slider {
    position: absolute;
    top: 5px;
    left: 5px;
    height: calc(100% - 10px);
    width: calc(50% - 5px);
    background: var(--accent);
    border-radius: 50px;
    transition: all var(--transition-smooth);
    z-index: 1;
    box-shadow: 0 0 20px var(--accent-glow);
}

.toggle-slider.web3 {
    transform: translateX(100%);
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-section {
    padding: 6rem 0;
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.about-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.about-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

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

.about-card .icon-box {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    transition: all var(--transition-smooth);
}

.design-card .icon-box {
    background: var(--accent-design-subtle);
    color: var(--accent-design);
    border: 1px solid rgba(255, 0, 0, 0.15);
}

.crypto-card .icon-box {
    background: var(--accent-web3-subtle);
    color: var(--accent-web3);
    border: 1px solid rgba(255, 69, 0, 0.15);
}

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.about-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tags li {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.02);
    transition: all var(--transition-fast);
}

.design-card .skill-tags li:hover {
    border-color: var(--accent-design);
    color: var(--accent-design);
    background: var(--accent-design-subtle);
}

.crypto-card .skill-tags li:hover {
    border-color: var(--accent-web3);
    color: var(--accent-web3);
    background: var(--accent-web3-subtle);
}

.experience-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1.2rem;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
}

.design-card .experience-badge {
    color: var(--accent-design);
    background: var(--accent-design-subtle);
}

.crypto-card .experience-badge {
    color: var(--accent-web3);
    background: var(--accent-web3-subtle);
}

/* ============================================================
   ATMOSPHERIC BACKGROUND
   ============================================================ */
#atmosphere-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    pointer-events: none;
    z-index: 0;
}

/* Push all sections above the atmosphere */
.glass-nav,
.hero-section,
.category-toggle-section,
.about-section,
.skills-section,
.portfolio-section,
.crypto-section,
.contact-section,
footer {
    position: relative;
    z-index: 1;
}

/* ============================================================
   SKILLS & TOOLS — Color Reveal Grid
   ============================================================ */
.skills-section {
    padding: 6rem 0;
    position: relative;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.skill-icon-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 18px;
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

/* Subtle top-line glow on hover */
.skill-icon-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--brand-color, var(--accent));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.skill-icon-card:hover::before {
    opacity: 1;
}

/* The icon wrapper */
.skill-icon-wrap {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

/* Icon default: grayscale muted */
.skill-icon-wrap i.font-icon {
    color: #e5e5e5;
    filter: grayscale(1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: absolute;
    opacity: 1;
    transform: scale(1);
}

/* Brand image default: hidden */
.skill-icon-wrap .brand-img {
    position: absolute;
    width: 55%;
    height: 55%;
    object-fit: contain;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Icon hover: hide font icon, show brand image */
.skill-icon-card:hover .skill-icon-wrap i.font-icon {
    opacity: 0;
    transform: scale(0.8);
}

.skill-icon-card:hover .skill-icon-wrap .brand-img {
    opacity: 1;
    transform: scale(1.1);
}

.skill-icon-card:hover .skill-icon-wrap {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--brand-color, var(--accent));
    box-shadow:
        0 0 20px color-mix(in srgb, var(--brand-color, var(--accent)) 30%, transparent),
        inset 0 0 15px color-mix(in srgb, var(--brand-color, var(--accent)) 10%, transparent);
    transform: scale(1.15);
}

.skill-icon-card:hover {
    border-color: var(--brand-color, var(--glass-border-hover));
    transform: translateY(-8px);
    box-shadow:
        0 15px 40px rgba(0, 0, 0, 0.4),
        0 0 30px color-mix(in srgb, var(--brand-color, var(--accent)) 15%, transparent);
}

.skill-label {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-align: center;
    transition: color 0.4s ease;
}

.skill-icon-card:hover .skill-label {
    color: var(--text-primary);
}

/* ============================================================
   PORTFOLIO GALLERY
   ============================================================ */
.portfolio-section {
    padding: 6rem 0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.portfolio-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    border: 1px solid var(--glass-border);
    transition: all var(--transition-smooth);
}

.portfolio-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    border: 1px solid transparent;
    transition: border-color var(--transition-smooth);
    pointer-events: none;
    z-index: 3;
}

.portfolio-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.portfolio-item:hover::after {
    border-color: var(--accent);
    box-shadow: inset 0 0 30px var(--accent-subtle);
}

.portfolio-bg {
    width: 100%;
    height: 100%;
    transition: transform 0.6s ease;
    position: relative;
}

.portfolio-bg .pulse-overlay {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.portfolio-item:hover .portfolio-bg {
    transform: scale(1.08);
}

.portfolio-item:hover .pulse-overlay {
    opacity: 1;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        opacity: 0.3;
    }

    50% {
        opacity: 0.6;
    }
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.8rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.6) 60%, transparent 100%);
    z-index: 2;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.4s ease;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-overlay h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
    letter-spacing: 1px;
}

.portfolio-overlay p {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
    transition: color var(--transition-smooth);
}

.portfolio-overlay .portfolio-tags {
    display: flex;
    gap: 0.4rem;
    margin-top: 0.6rem;
}

.portfolio-overlay .portfolio-tags span {
    font-size: 0.65rem;
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
}

/* Portfolio category filter (hidden when not matching) */
.portfolio-item.hidden {
    display: none;
}

/* Play icon animation */
.play-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.play-indicator i {
    color: white;
    font-size: 1.2rem;
    margin-left: 3px;
}

.portfolio-item:hover .play-indicator {
    transform: translate(-50%, -50%) scale(1);
}

/* ============================================================
   CRYPTO / MARKET SECTION
   ============================================================ */
.crypto-section {
    padding: 6rem 0;
}

.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2rem;
}

.crypto-dashboard {
    max-width: 800px;
    margin: 0 auto;
}

.ticker-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

.ticker-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    padding: 1.3rem 0;
    border-bottom: 1px solid var(--glass-border);
    align-items: center;
    transition: all var(--transition-fast);
}

.ticker-row:last-of-type {
    border-bottom: none;
}

.ticker-row:hover {
    background: rgba(255, 255, 255, 0.02);
    padding-left: 0.5rem;
}

.coin-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.coin-info i {
    font-size: 1.4rem;
}

.coin-price {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.coin-change {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.coin-change.positive {
    color: #00d68f;
}

.coin-change.negative {
    color: var(--accent-design);
}

.data-source {
    text-align: right;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 1.2rem;
    letter-spacing: 0.5px;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-section {
    padding: 6rem 0 8rem;
}

.contact-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.input-group {
    margin-bottom: 1.2rem;
}

.input-group input,
.input-group textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    padding: 1rem 1.2rem;
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

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

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-subtle);
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    background: var(--accent);
    border: none;
    border-radius: 12px;
    color: var(--bg-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-fast), background var(--transition-smooth), box-shadow var(--transition-smooth);
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.social-links {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--glass-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.social-icon:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    text-align: center;
    padding: 2.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--glass-border);
    letter-spacing: 1px;
}

footer a {
    color: var(--accent);
    transition: color var(--transition-smooth);
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2.5rem;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 1.1rem;
    }

    .hamburger {
        display: block;
    }

    .hero-section {
        align-items: flex-end;
        padding-bottom: 5vh;
        justify-content: center;
        /* 3D canvas fills the top, content anchored to bottom */
    }

    .hero-content {
        text-align: center;
        max-width: 100%;
        padding: 0 8% 2rem;
        margin-left: 0;
        width: 100%;
    }

    .hero-content h1 {
        font-size: clamp(2rem, 11vw, 3rem);
        margin-bottom: 0.8rem;
    }

    .typewriter {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }

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

    .cta-group {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }

    /* Hide the secondary (Web3) button on mobile — show only primary */
    #btn-hero-web3 {
        display: none;
    }

    .btn-primary {
        width: auto;
        min-width: 220px;
        justify-content: center;
    }

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

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

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

    .ticker-header,
    .ticker-row {
        grid-template-columns: 1.5fr 1fr 1fr;
        font-size: 0.85rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .section-header {
        text-align: center;
    }

    .section-title::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .toggle-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.65rem;
        letter-spacing: 1px;
    }
}

@media (max-width: 480px) {

    .ticker-header span:nth-child(3),
    .ticker-row div:nth-child(3) {
        display: none;
    }

    .ticker-header,
    .ticker-row {
        grid-template-columns: 1.5fr 1fr;
    }
}