/* ============================================================
   MAHESH MAKWANA — Professional Portfolio
   Framer-inspired design with off-white professional theme
   ============================================================ */

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
    /* Professional Off-White / Light Palette */
    --bg-primary:     #f8f9fc;
    --bg-secondary:   #ffffff;
    --bg-card:        #ffffff;
    --bg-card-hover:  #f1f3f9;
    --bg-elevated:    #f1f3f8;

    /* Accent Colors — deep indigo for professionalism */
    --accent:         #4f46e5;
    --accent-light:   #6366f1;
    --accent-dark:    #4338ca;
    --accent-glow:    rgba(79,70,229,0.08);
    --accent-glow-strong: rgba(79,70,229,0.14);

    /* Secondary Accents */
    --teal:           #0d9488;
    --teal-glow:      rgba(13,148,136,0.08);
    --purple:         #7c3aed;
    --purple-glow:    rgba(124,58,237,0.08);
    --emerald:        #059669;
    --emerald-glow:   rgba(5,150,105,0.08);
    --amber:          #d97706;
    --amber-glow:     rgba(217,119,6,0.08);
    --rose:           #e11d48;
    --rose-glow:      rgba(225,29,72,0.08);
    --sky:            #0284c7;
    --sky-glow:       rgba(2,132,199,0.08);

    /* Text */
    --text-primary:   #1e293b;
    --text-secondary: #475569;
    --text-muted:     #94a3b8;
    --text-accent:    #4f46e5;

    /* Borders */
    --border:         #e2e8f0;
    --border-hover:   #cbd5e1;
    --border-accent:  rgba(79,70,229,0.25);

    /* Sizing */
    --nav-h:    72px;
    --container: 1200px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Typography */
    --ff: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --ff-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Shadows */
    --shadow-sm:  0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md:  0 4px 6px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg:  0 10px 25px rgba(0,0,0,0.06), 0 4px 10px rgba(0,0,0,0.04);
    --shadow-xl:  0 20px 40px rgba(0,0,0,0.08), 0 8px 16px rgba(0,0,0,0.04);

    /* Transitions */
    --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-h);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--ff);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* ── UTILITIES ─────────────────────────────────────────────── */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

/* ── CANVAS BACKGROUND ─────────────────────────────────────── */
#bg-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.25;
}

/* ── SUBTLE DOT PATTERN OVERLAY ────────────────────────────── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.4;
    background-image: radial-gradient(circle, #cbd5e1 0.5px, transparent 0.5px);
    background-size: 24px 24px;
}

/* ── CUSTOM CURSOR ─────────────────────────────────────────── */
#cursor-dot {
    position: fixed;
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.1s;
}

#cursor-ring {
    position: fixed;
    width: 36px; height: 36px;
    border: 1.5px solid rgba(79,70,229,0.3);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: width 0.3s var(--ease-spring), height 0.3s var(--ease-spring),
                border-color 0.3s;
}

#cursor-ring.hovered {
    width: 56px; height: 56px;
    border-color: var(--accent);
    background: rgba(79,70,229,0.04);
}

/* ── SCROLL TO TOP ─────────────────────────────────────────── */
.scroll-top {
    position: fixed;
    bottom: 32px; right: 32px;
    width: 48px; height: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 1.4rem;
    color: var(--accent);
    z-index: 100;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s var(--ease-out);
    box-shadow: var(--shadow-md);
}

.scroll-top.visible {
    opacity: 1;
    transform: translateY(0);
}

.scroll-top:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(79,70,229,0.25);
}

/* ── HEADER / NAV ──────────────────────────────────────────── */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    z-index: 1000;
    transition: all 0.4s var(--ease-out);
}

.site-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(248,249,252,0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    opacity: 0;
    transition: opacity 0.4s;
}

.site-header.scrolled::before { opacity: 1; }

.nav-pill {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.nav__logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    transition: color 0.3s;
}

.nav__logo:hover { color: var(--accent); }

.nav__list {
    display: flex;
    gap: 4px;
}

.nav__link {
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 100px;
    transition: all 0.3s var(--ease-out);
    position: relative;
}

.nav__link:hover {
    color: var(--text-primary);
    background: var(--bg-elevated);
}

.nav__link.active {
    color: var(--accent);
    background: var(--accent-glow);
    font-weight: 600;
}

.nav__cta {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #fff;
    background: var(--accent);
    border-radius: 100px;
    transition: all 0.3s var(--ease-out);
    box-shadow: 0 2px 8px rgba(79,70,229,0.2);
}

.nav__cta:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(79,70,229,0.3);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav__toggle span {
    display: block;
    width: 24px; height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ── MOBILE DRAWER ─────────────────────────────────────────── */
.nav__drawer {
    position: fixed;
    inset: 0;
    z-index: 2000;
    pointer-events: none;
    visibility: hidden;
}

.nav__drawer.open {
    pointer-events: auto;
    visibility: visible;
}

.nav__drawer-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15,23,42,0.4);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.4s;
}

.nav__drawer.open .nav__drawer-overlay { opacity: 1; }

.nav__drawer-panel {
    position: absolute;
    top: 0; right: 0;
    width: min(320px, 85vw);
    height: 100%;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    padding: 80px 32px 32px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease-out);
    box-shadow: -8px 0 30px rgba(0,0,0,0.08);
}

.nav__drawer.open .nav__drawer-panel { transform: translateX(0); }

.nav__drawer-close {
    position: absolute;
    top: 20px; right: 20px;
    font-size: 2rem;
    color: var(--text-secondary);
    transition: color 0.3s;
}

.nav__drawer-close:hover { color: var(--text-primary); }

.nav__drawer-link {
    padding: 12px 16px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all 0.3s;
}

.nav__drawer-link:hover,
.nav__drawer-link.active {
    color: var(--accent);
    background: var(--accent-glow);
}

body.mobile-open { overflow: hidden; }

/* ── SECTION COMMON ────────────────────────────────────────── */
.section {
    padding: 64px 0;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-glow);
    border: 1px solid rgba(79,70,229,0.12);
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-title span {
    background: linear-gradient(135deg, var(--accent) 0%, var(--teal) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ── REVEAL ANIMATIONS ─────────────────────────────────────── */
.reveal,
.reveal-left,
.reveal-right,
.reveal-scale {
    opacity: 0;
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
    will-change: opacity, transform;
}

.reveal        { transform: translateY(40px); }
.reveal-left   { transform: translateX(-50px); }
.reveal-right  { transform: translateX(50px); }
.reveal-scale  { transform: scale(0.9); }

.reveal.in-view,
.reveal-left.in-view,
.reveal-right.in-view,
.reveal-scale.in-view {
    opacity: 1;
    transform: translate(0) scale(1);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ── HERO SECTION ──────────────────────────────────────────── */
.section-home {
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    padding: 40px 0 80px;
    position: relative;
    z-index: 1;
    overflow: hidden;
    background: linear-gradient(160deg, #ffffff 0%, #f5f4ff 40%, #f0fdf9 75%, var(--bg-primary) 100%);
}

/* Gradient orbs */
.home-mesh {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.home-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
}

.home-shape--1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(79,70,229,0.12) 0%, rgba(79,70,229,0) 70%);
    top: -15%; left: -8%;
    animation: float-orb 20s ease-in-out infinite;
}

.home-shape--2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(13,148,136,0.09) 0%, rgba(13,148,136,0) 70%);
    bottom: -10%; right: -8%;
    animation: float-orb 25s ease-in-out infinite reverse;
}

.home-shape--3 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, rgba(124,58,237,0.08) 0%, rgba(124,58,237,0) 70%);
    top: 35%; right: 18%;
    animation: float-orb 18s ease-in-out infinite 2s;
}

.home-shape--4 {
    width: 250px; height: 250px;
    background: radial-gradient(circle, rgba(225,29,72,0.05) 0%, rgba(225,29,72,0) 70%);
    bottom: 15%; left: 12%;
    animation: float-orb 22s ease-in-out infinite 5s;
}

.home-shape--ring {
    width: 600px; height: 600px;
    border: 1px solid rgba(79,70,229,0.06);
    background: transparent;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    animation: spin-slow 60s linear infinite;
    filter: none;
}

@keyframes float-orb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

@keyframes spin-slow {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.home__inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* Hero content */
.home__content { display: flex; flex-direction: column; gap: 24px; }

.home__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--emerald);
    width: fit-content;
    background: rgba(5,150,105,0.07);
    border: 1px solid rgba(5,150,105,0.18);
    padding: 6px 14px;
    border-radius: 100px;
}

.home__eyebrow-dot {
    width: 8px; height: 8px;
    background: var(--emerald);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(5,150,105,0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(5,150,105,0); }
}

.home__name {
    font-size: clamp(3.2rem, 7.5vw, 5.5rem);
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 1.02;
    background: linear-gradient(135deg, #1e293b 0%, #4f46e5 45%, #0d9488 80%, #7c3aed 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 300% 300%;
    animation: gradient-shift 10s ease-in-out infinite;
    text-shadow: none;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.home__title-line {
    display: block;
    font-size: clamp(1.1rem, 2.5vw, 1.45rem);
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: 10px;
    min-height: 2em;
}

.home__desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 520px;
}

.home__desc strong { color: var(--text-primary); font-weight: 600; }

/* Hero badges */
.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.badge {
    padding: 6px 14px;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 100px;
    letter-spacing: 0.02em;
    border: 1px solid transparent;
}

.badge--blue   { color: var(--accent);  background: var(--accent-glow);  border-color: rgba(79,70,229,0.12); }
.badge--purple { color: var(--purple);  background: var(--purple-glow);  border-color: rgba(124,58,237,0.12); }
.badge--teal   { color: var(--teal);    background: var(--teal-glow);    border-color: rgba(13,148,136,0.12); }
.badge--green  { color: var(--emerald); background: var(--emerald-glow); border-color: rgba(5,150,105,0.12); }

/* Hero CTAs */
.home__ctas { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 100px;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    color: #fff;
    background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);
    border: 1px solid transparent;
    box-shadow: 0 4px 16px rgba(79,70,229,0.3), inset 0 1px 0 rgba(255,255,255,0.15);
    position: relative;
}

.btn--primary::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, var(--accent-dark) 0%, #6d28d9 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn--primary:hover::after { opacity: 1; }
.btn--primary span, .btn--primary i { position: relative; z-index: 1; }

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(79,70,229,0.4);
}

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

.btn--ghost:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    color: var(--accent);
    transform: translateY(-2px);
}

/* Social icons */
.home__socials { display: flex; gap: 12px; }

.home__social-icon {
    width: 42px; height: 42px;
    display: grid;
    place-items: center;
    font-size: 1.2rem;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 50%;
    transition: all 0.3s var(--ease-out);
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
}

.home__social-icon:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(79,70,229,0.15);
}

/* Hero stats */
.hero-stats {
    display: flex;
    gap: 24px;
    align-items: center;
    padding-top: 16px;
}

.stat { text-align: center; }

.stat__num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.stat__plus {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
}

.stat__label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 2px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Hero image */
.home__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrap {
    position: relative;
    width: 380px; height: 380px;
}

.hero-image-glow {
    position: absolute;
    inset: -32px;
    background: radial-gradient(circle,
        rgba(79,70,229,0.22) 0%,
        rgba(124,58,237,0.12) 35%,
        rgba(13,148,136,0.10) 55%,
        transparent 70%);
    border-radius: 50%;
    animation: glow-pulse 4s ease-in-out infinite;
    filter: blur(4px);
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.hero-image-wrap img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center top;
    border-radius: 50%;
    border: 4px solid rgba(255,255,255,0.95);
    box-shadow:
        var(--shadow-xl),
        0 0 0 2px rgba(79,70,229,0.18),
        0 0 40px rgba(79,70,229,0.18),
        0 0 80px rgba(13,148,136,0.10);
    position: relative;
    z-index: 1;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    -webkit-filter: contrast(1.04) saturate(1.12) brightness(1.02);
    filter: contrast(1.04) saturate(1.12) brightness(1.02);
    transition: box-shadow 0.4s ease, filter 0.4s ease, transform 0.4s ease;
}

.hero-image-wrap img:hover {
    box-shadow:
        var(--shadow-xl),
        0 0 0 3px rgba(79,70,229,0.28),
        0 0 60px rgba(79,70,229,0.28),
        0 0 120px rgba(13,148,136,0.16);
    -webkit-filter: contrast(1.06) saturate(1.18) brightness(1.04);
    filter: contrast(1.06) saturate(1.18) brightness(1.04);
    transform: scale(1.025);
}

/* ── WAVE DIVIDER ──────────────────────────────────────────── */
.divider-wave {
    position: relative;
    z-index: 1;
    line-height: 0;
    margin: -1px 0;
}

.divider-wave svg {
    width: 100%;
    height: 60px;
    display: block;
}

/* ── GRADIENT / DOT DIVIDERS ───────────────────────────────── */
.divider-gradient {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 0 auto;
    max-width: 600px;
    position: relative;
    z-index: 1;
}

.divider-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 24px 0;
    position: relative;
    z-index: 1;
}

.divider-dots span {
    width: 4px; height: 4px;
    border-radius: 50%;
    background: var(--border-hover);
}

/* ── ABOUT SECTION ─────────────────────────────────────────── */
.section-about { background: var(--bg-secondary); }

.about__container {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 64px;
    align-items: start;
}

/* ── ABOUT INFO PANEL (replaces duplicate photo) ─────────── */
.about__info-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 28px 24px;
    box-shadow: var(--shadow-md);
    width: 300px;
}

.aip-header {
    display: flex;
    align-items: center;
    gap: 14px;
}

.aip-avatar-ring {
    width: 58px; height: 58px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--teal) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 0 3px rgba(79,70,229,0.15), 0 4px 16px rgba(79,70,229,0.2);
}

.aip-initials {
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.02em;
}

.aip-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.aip-role {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.aip-list {
    list-style: none;
    padding: 0; margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.aip-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.aip-list li i {
    font-size: 1rem;
    color: var(--accent);
    flex-shrink: 0;
    width: 18px;
}

.aip-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(79,70,229,0.08) 0%, rgba(13,148,136,0.08) 100%);
    border: 1px solid rgba(79,70,229,0.15);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    text-align: center;
    justify-content: center;
}

.about__card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.about__subtitle {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.about__text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
    line-height: 1.8;
}

.about__text strong { color: var(--text-primary); font-weight: 600; }

.about__actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin: 28px 0;
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 28px;
}

.stat-card {
    text-align: center;
    padding: 20px 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s var(--ease-out);
}

.stat-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-card__number {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.stat-card__label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 4px;
}

/* ── AI & ML SECTION ───────────────────────────────────────── */
.section-ai { background: var(--bg-primary); }

.ai__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.ai-card {
    position: relative;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s var(--ease-out);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.ai-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--teal));
    opacity: 0;
    transition: opacity 0.4s;
}

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

.ai-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.ai-card__icon {
    width: 52px; height: 52px;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.ai-card__icon--purple { color: var(--purple); background: var(--purple-glow); }
.ai-card__icon--teal   { color: var(--teal);   background: var(--teal-glow); }
.ai-card__icon--blue   { color: var(--accent);  background: var(--accent-glow); }
.ai-card__icon--green  { color: var(--emerald); background: var(--emerald-glow); }
.ai-card__icon--amber  { color: var(--amber);  background: var(--amber-glow); }
.ai-card__icon--rose   { color: var(--rose);   background: var(--rose-glow); }

.ai-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.ai-card__desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.ai-card__desc strong { color: var(--text-primary); font-weight: 600; }

/* ── PyPI LIBRARIES SECTION ────────────────────────────────── */
.section-pypi { background: var(--bg-secondary); }

.pypi__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.pypi-card {
    position: relative;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s var(--ease-out);
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.pypi-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, transparent 40%, rgba(79,70,229,0.15) 60%, rgba(13,148,136,0.15) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s;
}

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

.pypi-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.pypi-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.pypi-card__icon {
    width: 48px; height: 48px;
    display: grid;
    place-items: center;
    font-size: 1.3rem;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.pypi-card__version {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 100px;
    color: var(--teal);
    background: var(--teal-glow);
    border: 1px solid rgba(13,148,136,0.12);
    white-space: nowrap;
}

.pypi-card__name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--ff-mono);
    letter-spacing: -0.01em;
}

.pypi-card__desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
    flex: 1;
}

.pypi-card__desc strong { color: var(--text-primary); font-weight: 600; }

.pypi-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.pypi-tag {
    padding: 4px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 100px;
    letter-spacing: 0.02em;
}

.pypi-card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    transition: all 0.3s;
    width: fit-content;
}

.pypi-card__link:hover {
    color: var(--accent-dark);
    gap: 10px;
}

.pypi-card__link i {
    font-size: 1rem;
    transition: transform 0.3s;
}

.pypi-card__link:hover i { transform: translateX(3px); }

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

.skills-code-deco {
    position: absolute;
    font-family: var(--ff-mono);
    font-size: 0.7rem;
    color: var(--accent);
    opacity: 0.06;
    white-space: nowrap;
    pointer-events: none;
    z-index: 0;
}

.skills-code-deco--1 { top: 30px; left: 5%; transform: rotate(-3deg); }
.skills-code-deco--2 { bottom: 60px; right: 3%; transform: rotate(2deg); }
.skills-code-deco--3 { top: 50%; left: 60%; transform: rotate(-1deg); }

.skills__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.skills__group {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.skills__group-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.skill-bar-item { margin-bottom: 20px; }
.skill-bar-item:last-child { margin-bottom: 0; }

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

.skill-bar-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.skill-bar-pct {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    font-family: var(--ff-mono);
}

.skill-bar-track {
    height: 6px;
    background: var(--bg-elevated);
    border-radius: 100px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.skill-bar-fill {
    height: 100%;
    width: 0;
    border-radius: 100px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transition: width 1.2s var(--ease-out);
}

.skill-bar-fill.animate {
    width: var(--target-width);
}

/* Tag cloud */
.skills-tags {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.skills-tags-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.skills-tags-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.tag {
    padding: 6px 14px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 100px;
    transition: all 0.3s var(--ease-out);
}

.tag:hover {
    color: var(--accent);
    border-color: var(--border-accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

/* ── Role badges (shared) ── */
.role-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    font-size: 0.68rem;
    font-weight: 600;
    border-radius: 100px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.role-badge-dot { width: 6px; height: 6px; border-radius: 50%; }

.role-badge--current  { color: var(--accent);   background: var(--accent-glow); }
.role-badge--current .role-badge-dot {
    background: var(--accent);
    animation: pulse-dot 2s ease-in-out infinite;
}
.role-badge--opensource { color: var(--emerald); background: var(--emerald-glow); }
.role-badge--opensource .role-badge-dot { background: var(--emerald); }
.role-badge--trading  { color: var(--amber);    background: var(--amber-glow); }
.role-badge--trading .role-badge-dot  { background: var(--amber); }

/* ═══════════════════════════════════════════════════════════
   STICKY SCROLL EXPERIENCE — Modern Full-Page Design
   ═══════════════════════════════════════════════════════════ */

/* ── Layout wrapper ── */
.exp-sticky-wrap {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 64px;
    align-items: start;
    margin-bottom: 80px;
}

/* ── Left sticky panel ── */
.exp-sticky-left {
    position: sticky;
    top: 96px;
    align-self: start;
}

.exp-sticky-inner {
    background: linear-gradient(145deg, #ffffff 0%, #f6f7fc 100%);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 32px 36px;
    box-shadow: 0 8px 32px rgba(79,70,229,0.07), 0 2px 8px rgba(0,0,0,0.04);
    position: relative;
    overflow: hidden;
}

/* Decorative accent corner */
.exp-sticky-inner::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--teal) 50%, var(--purple) 100%);
    border-radius: 20px 20px 0 0;
}

/* Subtle mesh glow */
.exp-sticky-inner::after {
    content: '';
    position: absolute;
    top: -60px; right: -60px;
    width: 180px; height: 180px;
    background: radial-gradient(circle, rgba(79,70,229,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.exp-sticky-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 16px;
}

.exp-sticky-eyebrow::before {
    content: '';
    display: block;
    width: 18px; height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.exp-sticky-heading {
    font-size: clamp(1.5rem, 2.2vw, 2rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.exp-sticky-heading span {
    background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.exp-sticky-sub {
    font-size: 0.845rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 28px;
}

/* Stats row */
.exp-sticky-stats {
    display: flex;
    gap: 8px;
    margin-bottom: 28px;
}

.exp-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 8px 12px;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.exp-stat:hover {
    border-color: var(--border-accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.exp-stat-num {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--accent);
    font-family: var(--ff-mono);
    line-height: 1;
    letter-spacing: -0.03em;
}

.exp-stat-label {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    margin-top: 5px;
    text-align: center;
}

/* Timeline nav dots */
.exp-sticky-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 20px;
}

.exp-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 4px 0;
    transition: opacity 0.25s;
    opacity: 0.45;
}

.exp-nav-item.is-active { opacity: 1; }

.exp-nav-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--border-hover);
    transition: width 0.3s var(--ease-out), background 0.3s, border-radius 0.3s;
    flex-shrink: 0;
}

.exp-nav-item.is-active .exp-nav-dot {
    width: 20px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--accent), var(--teal));
}

.exp-nav-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.25s;
}

.exp-nav-item.is-active .exp-nav-label { color: var(--text-primary); }

/* Progress bar */
.exp-sticky-progress { display: flex; align-items: center; gap: 10px; }

.exp-progress-track {
    flex: 1;
    height: 3px;
    background: var(--border);
    border-radius: 100px;
    overflow: hidden;
}

.exp-progress-fill {
    height: 100%;
    width: 12.5%;
    background: linear-gradient(90deg, var(--accent), var(--teal));
    border-radius: 100px;
    transition: width 0.45s var(--ease-out);
}

.exp-progress-label {
    font-size: 0.68rem;
    font-family: var(--ff-mono);
    color: var(--text-muted);
    white-space: nowrap;
    min-width: 36px;
    text-align: right;
}

/* ── Right scrollable cards ── */
.exp-scroll-right {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Base card */
.exp-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 32px 32px 28px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: border-color 0.3s, box-shadow 0.35s var(--ease-out), transform 0.35s var(--ease-out);
    cursor: default;
}

/* Large ghost number (background decoration) */
.exp-card::before {
    content: attr(data-index);
    position: absolute;
    top: -12px; right: 20px;
    font-size: 8rem;
    font-weight: 900;
    font-family: var(--ff-mono);
    color: var(--bg-primary);
    line-height: 1;
    pointer-events: none;
    user-select: none;
    transition: color 0.3s;
    z-index: 0;
}

/* Top gradient accent bar */
.exp-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--border) 0%, var(--border) 100%);
    border-radius: 18px 18px 0 0;
    transition: background 0.3s;
}

/* Accent variants */
.exp-card--current::after  {
    background: linear-gradient(90deg, var(--accent) 0%, var(--purple) 100%);
}
.exp-card--opensource::after {
    background: linear-gradient(90deg, var(--emerald) 0%, var(--teal) 100%);
}
.exp-card--trading::after  {
    background: linear-gradient(90deg, var(--amber) 0%, var(--rose) 100%);
}

/* Hover lift */
.exp-card:hover {
    border-color: rgba(79,70,229,0.2);
    box-shadow: 0 12px 40px rgba(79,70,229,0.1), 0 4px 12px rgba(0,0,0,0.05);
    transform: translateY(-4px);
}

.exp-card--opensource:hover {
    border-color: rgba(5,150,105,0.2);
    box-shadow: 0 12px 40px rgba(5,150,105,0.1), 0 4px 12px rgba(0,0,0,0.05);
}

.exp-card--trading:hover {
    border-color: rgba(217,119,6,0.2);
    box-shadow: 0 12px 40px rgba(217,119,6,0.1), 0 4px 12px rgba(0,0,0,0.05);
}

.exp-card:hover::before { color: #eef0f6; }

/* Inner content sits above ghost number */
.exp-card-top,
.exp-card-role,
.exp-card-company,
.exp-card-period,
.exp-card-divider,
.exp-card-list,
.exp-card-desc,
.exp-card-tags { position: relative; z-index: 1; }

.exp-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.exp-card-num {
    font-size: 0.68rem;
    font-weight: 700;
    font-family: var(--ff-mono);
    color: var(--text-muted);
    letter-spacing: 0.1em;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 3px 8px;
}

.exp-card-role {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 5px;
    letter-spacing: -0.01em;
    line-height: 1.25;
}

.exp-card-company {
    font-size: 0.875rem;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.exp-card--opensource .exp-card-company { color: var(--emerald); }
.exp-card--trading    .exp-card-company { color: var(--amber); }

.exp-card-company::before {
    content: '';
    display: inline-block;
    width: 5px; height: 5px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}

.exp-card-period {
    font-size: 0.73rem;
    color: var(--text-muted);
    font-family: var(--ff-mono);
    margin-bottom: 18px;
    letter-spacing: 0.03em;
}

.exp-card-divider {
    height: 1px;
    background: linear-gradient(90deg, var(--border) 0%, transparent 80%);
    margin-bottom: 16px;
    border-radius: 1px;
}

.exp-card-list {
    list-style: none;
    padding: 0;
    margin: 0 0 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.exp-card-list li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
}

.exp-card-list li::before {
    content: '';
    position: absolute;
    left: 0; top: 8px;
    width: 6px; height: 6px;
    border-radius: 2px;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    opacity: 0.6;
}

.exp-card--opensource .exp-card-list li::before {
    background: linear-gradient(135deg, var(--emerald), var(--teal));
}
.exp-card--trading .exp-card-list li::before {
    background: linear-gradient(135deg, var(--amber), var(--rose));
}

.exp-card-list li strong { color: var(--text-primary); font-weight: 600; }

.exp-card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin: 0 0 18px;
}

.exp-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.exp-card-tags span {
    font-size: 0.66rem;
    font-weight: 700;
    padding: 4px 11px;
    border-radius: 100px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.exp-card:hover .exp-card-tags span {
    border-color: var(--border-accent);
    color: var(--accent);
    background: var(--accent-glow);
}
.exp-card--opensource:hover .exp-card-tags span {
    border-color: rgba(5,150,105,0.25);
    color: var(--emerald);
    background: var(--emerald-glow);
}
.exp-card--trading:hover .exp-card-tags span {
    border-color: rgba(217,119,6,0.25);
    color: var(--amber);
    background: var(--amber-glow);
}

/* ── Education row ── */
.edu-row-wrap { margin-top: 16px; }

.edu-row-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.edu-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.edu-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: border-color 0.3s, box-shadow 0.3s;
}

.edu-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.edu-card-icon {
    width: 40px; height: 40px;
    min-width: 40px;
    border-radius: var(--radius-sm);
    background: var(--accent-glow);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem;
    color: var(--accent);
}

.edu-card-degree {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.edu-card-school {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 2px;
}

.edu-card-year {
    font-size: 0.72rem;
    font-family: var(--ff-mono);
    color: var(--text-muted);
    margin-bottom: 8px;
}

.edu-card-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ── CERTIFICATIONS SECTION ────────────────────────────────── */
.section-certs { background: var(--bg-primary); }

.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.cert-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s var(--ease-out);
    box-shadow: var(--shadow-sm);
}

.cert-card:hover {
    border-color: var(--border-accent);
    box-shadow: var(--shadow-xl);
}

.cert-shimmer {
    position: absolute;
    top: -100%; left: -100%;
    width: 300%; height: 300%;
    background: linear-gradient(
        135deg,
        transparent 30%,
        rgba(255,255,255,0.4) 40%,
        rgba(255,255,255,0.6) 50%,
        rgba(255,255,255,0.4) 60%,
        transparent 70%
    );
    transition: transform 0.8s;
    pointer-events: none;
}

.cert-card:hover .cert-shimmer { transform: translate(50%, 50%); }

.cert-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--border);
}

.cert-card-body { padding: 20px; }

.cert-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.cert-card-issuer {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ── FOOTER ────────────────────────────────────────────────── */
.site-footer {
    background: #1e293b;
    color: #e2e8f0;
    position: relative;
    z-index: 1;
}

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

.footer__top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    padding: 64px 0 40px;
}

.footer__brand-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 12px;
}

.footer__brand-desc {
    font-size: 0.88rem;
    color: #94a3b8;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 360px;
}

.footer__socials { display: flex; gap: 10px; }

.footer__social {
    width: 40px; height: 40px;
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    color: #94a3b8;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: all 0.3s var(--ease-out);
    background: rgba(255,255,255,0.05);
}

.footer__social:hover {
    color: #818cf8;
    border-color: #818cf8;
    background: rgba(129,140,248,0.1);
    transform: translateY(-2px);
}

.footer__col-title {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #f1f5f9;
    margin-bottom: 20px;
}

.footer__links { display: flex; flex-direction: column; gap: 10px; }

.footer__link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: #94a3b8;
    transition: all 0.3s;
}

.footer__link:hover {
    color: #818cf8;
    transform: translateX(4px);
}

.footer__link i { font-size: 0.9rem; }

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.footer__copy {
    font-size: 0.82rem;
    color: #64748b;
}

.footer__copy-highlight { color: #818cf8; font-weight: 600; }

.footer__badge {
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #34d399;
    background: rgba(52,211,153,0.1);
    border: 1px solid rgba(52,211,153,0.15);
    border-radius: 100px;
}

/* ── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .home__inner { grid-template-columns: 1fr; gap: 48px; text-align: center; }
    .home__content { align-items: center; }
    .hero-badges { justify-content: center; }
    .home__ctas { justify-content: center; }
    .home__socials { justify-content: center; }
    .hero-stats { justify-content: center; }
    .home__desc { margin: 0 auto; }

    .hero-image-wrap { width: 280px; height: 280px; }

    .about__container { grid-template-columns: 1fr; gap: 40px; }
    .about__info-panel { order: -1; width: 100%; }

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

    .exp-sticky-wrap { grid-template-columns: 260px 1fr; gap: 40px; }
    .edu-row { grid-template-columns: 1fr 1fr; }

    .footer__top { grid-template-columns: 1fr; gap: 32px; }

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

@media (max-width: 768px) {
    :root {
        --nav-h: 64px;
    }

    .section { padding: 48px 0; }
    .section-header { margin-bottom: 32px; }

    .nav__list { display: none; }
    .nav__cta  { display: none; }
    .nav__toggle { display: flex; }

    .section-home { padding: calc(var(--nav-h) + 24px) 0 48px; }
    .home__name { font-size: clamp(2.5rem, 10vw, 3.5rem); }

    .hero-stats { flex-wrap: wrap; gap: 16px; }
    .stat-divider { display: none; }

    .about__card { padding: 24px; }
    .about__stats { grid-template-columns: repeat(2, 1fr); }

    .pypi__grid { grid-template-columns: 1fr; }
    .ai__grid { grid-template-columns: 1fr; }

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

    .footer__bottom { flex-direction: column; gap: 12px; text-align: center; }

    .exp-sticky-wrap { grid-template-columns: 1fr; gap: 32px; }
    .exp-sticky-left { position: static; }
    .exp-sticky-inner { padding: 28px 24px; }
    .exp-sticky-stats { gap: 8px; }
    .exp-sticky-nav { display: none; }
    .exp-card::before { font-size: 5rem; }
    .edu-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .home__name { font-size: 2.5rem; }
    .hero-image-wrap { width: 220px; height: 220px; }
    .about__info-panel { width: 100%; }
    .about__stats { grid-template-columns: 1fr 1fr; }
}

/* ── SECTION TITLE UNDERLINE ANIMATION ─────────────────────── */
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--teal));
    border-radius: 100px;
    margin: 16px auto 0;
    transform: scaleX(0);
    transition: transform 0.6s var(--ease-out);
}

.section-title.in-view::after { transform: scaleX(1); }