/* ============================================================
   GOURAV JAIN PORTFOLIO — styles.css
   Modern, Beautiful, Interactive, Fully Responsive
   ============================================================ */

/* ---- Variables ---- */
:root {
    --primary:       #2563eb;
    --primary-dark:  #1e40af;
    --primary-light: #3b82f6;
    --cyan:          #06b6d4;
    --purple:        #8b5cf6;
    --amber:         #f59e0b;
    --green:         #10b981;
    --pink:          #ec4899;
    --text-dark:     #0f172a;
    --text-mid:      #334155;
    --text-light:    #64748b;
    --text-lighter:  #94a3b8;
    --bg:            #f8fafc;
    --bg-alt:        #f1f5f9;
    --white:         #ffffff;
    --border:        #e2e8f0;
    --shadow-sm:     0 1px 3px rgba(0,0,0,.08);
    --shadow-md:     0 4px 12px rgba(0,0,0,.10);
    --shadow-lg:     0 10px 30px rgba(0,0,0,.12);
    --shadow-xl:     0 20px 60px rgba(0,0,0,.15);
    --radius:        12px;
    --radius-lg:     20px;
    --radius-full:   9999px;
    --transition:    all .3s cubic-bezier(.4,0,.2,1);
    --transition-fast: all .15s ease;
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

/* ---- Gradient Text ---- */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: .95rem;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    box-shadow: 0 4px 15px rgba(37,99,235,.35);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37,99,235,.45);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-secondary:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37,99,235,.3);
}

.btn-ghost {
    background: rgba(255,255,255,.15);
    color: #fff;
    border-color: rgba(255,255,255,.4);
    backdrop-filter: blur(8px);
}
.btn-ghost:hover {
    background: rgba(255,255,255,.25);
    transform: translateY(-2px);
}

.btn-nav-cta {
    background: linear-gradient(135deg, var(--primary), var(--cyan));
    color: #fff !important;
    padding: .5rem 1.1rem;
    border-radius: var(--radius-full);
    font-size: .875rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 3px 12px rgba(37,99,235,.3);
}
.btn-nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37,99,235,.4);
}

.btn-lg { padding: .9rem 2rem; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ============================================================
   SECTION HEADER
   ============================================================ */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}
.section-tag {
    display: inline-block;
    padding: .3rem 1rem;
    background: linear-gradient(135deg, rgba(37,99,235,.1), rgba(6,182,212,.1));
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    margin-bottom: .75rem;
    border: 1px solid rgba(37,99,235,.2);
}
.section-header h2 {
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 1rem;
}
.section-header p {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================================================
   SCROLL ANIMATIONS (AOS-like, JS-powered)
   ============================================================ */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}
[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}
[data-aos][data-aos-delay="50"]  { transition-delay: 50ms; }
[data-aos][data-aos-delay="100"] { transition-delay: 100ms; }
[data-aos][data-aos-delay="150"] { transition-delay: 150ms; }
[data-aos][data-aos-delay="200"] { transition-delay: 200ms; }
[data-aos][data-aos-delay="250"] { transition-delay: 250ms; }
[data-aos][data-aos-delay="300"] { transition-delay: 300ms; }
[data-aos][data-aos-delay="400"] { transition-delay: 400ms; }
[data-aos][data-aos-delay="500"] { transition-delay: 500ms; }

[data-aos="fade-right"] { transform: translateX(-30px); }
[data-aos="fade-right"].aos-animate { transform: translateX(0); }
[data-aos="fade-left"]  { transform: translateX(30px); }
[data-aos="fade-left"].aos-animate  { transform: translateX(0); }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    background: transparent;
}
.navbar.scrolled {
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0,0,0,.08);
    padding: .7rem 0;
    border-bottom: 1px solid rgba(226,232,240,.8);
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: .6rem;
    flex-shrink: 0;
}
.logo-gj {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--cyan));
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: .8rem; font-weight: 800; color: #fff;
    flex-shrink: 0;
}
.logo-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
    transition: var(--transition);
}
.navbar.scrolled .logo-text { color: var(--text-dark); }
.navbar:not(.scrolled) .logo-text { color: #fff; }

.nav-menu {
    display: flex;
    align-items: center;
    gap: .25rem;
}
.nav-link {
    padding: .45rem .75rem;
    font-size: .88rem;
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition-fast);
    position: relative;
    color: rgba(255,255,255,.85);
}
.navbar.scrolled .nav-link { color: var(--text-mid); }
.nav-link:hover { color: var(--primary); background: rgba(37,99,235,.06); }
.nav-link.active { color: var(--primary); background: rgba(37,99,235,.08); }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
    cursor: pointer;
}
.hamburger span {
    width: 24px; height: 2.5px;
    background: #fff;
    border-radius: 3px;
    transition: var(--transition);
    display: block;
}
.navbar.scrolled .hamburger span { background: var(--text-dark); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, #0a1628 0%, #0d2247 40%, #0a1f3d 70%, #071529 100%);
    overflow: hidden;
    color: #fff;
}

/* Animated background blobs */
.hero-bg { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: .35;
    animation: blobFloat 8s ease-in-out infinite;
}
.blob-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, #2563eb, #1e40af);
    top: -200px; left: -200px;
    animation-delay: 0s;
}
.blob-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, #06b6d4, #0891b2);
    bottom: -150px; right: -150px;
    animation-delay: -3s;
}
.blob-3 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, #8b5cf6, #7c3aed);
    top: 40%; left: 55%;
    animation-delay: -5s;
}
@keyframes blobFloat {
    0%,100% { transform: translate(0,0) scale(1); }
    33%      { transform: translate(30px,-20px) scale(1.05); }
    66%      { transform: translate(-20px,15px) scale(.97); }
}
.grid-overlay {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-container {
    position: relative; z-index: 1;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 120px 24px 80px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4rem;
    align-items: center;
}

/* Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem 1rem;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: var(--radius-full);
    font-size: .8rem;
    font-weight: 500;
    margin-bottom: 1.2rem;
    backdrop-filter: blur(10px);
    color: rgba(255,255,255,.9);
}
.badge-dot {
    width: 8px; height: 8px;
    background: #22c55e;
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(34,197,94,.25);
    animation: pulse 2s ease infinite;
}
@keyframes pulse {
    0%,100% { box-shadow: 0 0 0 3px rgba(34,197,94,.25); }
    50%      { box-shadow: 0 0 0 6px rgba(34,197,94,.1); }
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: #fff;
}

/* Typing effect */
.hero-subtitle-wrap {
    display: flex;
    align-items: center;
    gap: .3rem;
    font-size: clamp(1rem, 2.5vw, 1.35rem);
    font-weight: 500;
    color: rgba(255,255,255,.8);
    margin-bottom: 1.25rem;
    min-height: 2rem;
}
.typing-prefix { flex-shrink: 0; }
.typing-text {
    color: var(--cyan);
    font-weight: 700;
}
.typing-cursor {
    color: var(--cyan);
    animation: blink .75s step-end infinite;
    font-weight: 300;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

.hero-description {
    font-size: 1rem;
    color: rgba(255,255,255,.7);
    max-width: 540px;
    line-height: 1.75;
    margin-bottom: 1.5rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 2rem;
}
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .3rem .8rem;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-full);
    font-size: .78rem;
    color: rgba(255,255,255,.8);
}
.hero-tag i { color: var(--cyan); font-size: .7rem; }

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    margin-bottom: 2rem;
}

.hero-socials {
    display: flex;
    gap: .6rem;
}
.social-icon {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 10px;
    color: rgba(255,255,255,.8);
    font-size: .85rem;
    transition: var(--transition);
}
.social-icon:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37,99,235,.4);
}

/* Profile area */
.hero-image { display: flex; justify-content: center; align-items: center; }
.profile-wrapper { position: relative; width: 280px; height: 280px; }

.profile-ring {
    position: absolute; inset: -12px;
    border-radius: 50%;
    border: 2px solid transparent;
    background: linear-gradient(white, white) padding-box,
                linear-gradient(135deg, var(--primary), var(--cyan), var(--purple)) border-box;
    animation: spin 8s linear infinite;
}
.ring-2 {
    inset: -24px;
    border-width: 1px;
    animation-duration: 14s;
    animation-direction: reverse;
    opacity: .5;
}
@keyframes spin { to { transform: rotate(360deg); } }

.profile-card {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(37,99,235,.2), rgba(6,182,212,.2));
    border-radius: 50%;
    padding: 8px;
    backdrop-filter: blur(10px);
}
.profile-img {
    width: 100%; height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255,255,255,.3);
}

/* Floating badges */
.float-badge {
    position: absolute;
    display: flex; align-items: center; gap: .4rem;
    padding: .4rem .9rem;
    background: rgba(15,23,42,.85);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-full);
    font-size: .75rem;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-lg);
    animation: floatBadge 4s ease-in-out infinite;
}
.float-badge i { font-size: .8rem; }
.badge-azure { top: 0; right: -30px; color: #60a5fa; animation-delay: 0s; }
.badge-azure i { color: #60a5fa; }
.badge-ai     { bottom: 30px; right: -40px; color: #c084fc; animation-delay: -1.5s; }
.badge-ai i   { color: #c084fc; }
.badge-team   { bottom: -10px; left: -30px; color: #34d399; animation-delay: -3s; }
.badge-team i { color: #34d399; }
@keyframes floatBadge {
    0%,100% { transform: translateY(0); }
    50%      { transform: translateY(-8px); }
}

/* Stats bar */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-top: 3.5rem;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius-lg);
    padding: 1.5rem 2rem;
    backdrop-filter: blur(16px);
    flex-wrap: wrap;
    row-gap: 1rem;
}
.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 2rem;
    flex: 1;
    min-width: 100px;
}
.stat-num {
    font-size: 2rem;
    font-weight: 900;
    color: #fff;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.stat-suffix { font-size: 1.1rem; color: var(--cyan); font-weight: 700; }
.stat-lbl { font-size: .75rem; color: rgba(255,255,255,.55); margin-top: .3rem; font-weight: 500; text-align: center; }
.stat-divider {
    width: 1px; height: 40px;
    background: rgba(255,255,255,.15);
    flex-shrink: 0;
}

.scroll-down {
    position: absolute;
    bottom: 2rem; left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,.5);
    font-size: 1.2rem;
    animation: bounce 2s ease infinite;
    z-index: 1;
    transition: var(--transition);
}
.scroll-down:hover { color: rgba(255,255,255,.9); }
@keyframes bounce {
    0%,100% { transform: translateX(-50%) translateY(0); }
    50%      { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}
.about-text h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}
.about-text p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}
.about-text p strong { color: var(--text-dark); font-weight: 600; }

.about-highlights { margin-top: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.highlight-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(37,99,235,.25);
}
.highlight-item > i {
    font-size: 1.1rem;
    color: var(--primary);
    margin-top: .15rem;
    flex-shrink: 0;
    width: 20px;
}
.highlight-item strong { display: block; font-weight: 600; color: var(--text-dark); font-size: .95rem; }
.highlight-item span   { font-size: .85rem; color: var(--text-light); }

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}
.stat-box {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem 1rem;
    text-align: center;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.stat-box:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(37,99,235,.2);
}
.stat-icon {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, color-mix(in srgb, var(--icon-color) 15%, transparent), color-mix(in srgb, var(--icon-color) 8%, transparent));
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto .75rem;
    color: var(--icon-color);
    font-size: 1.1rem;
}
/* Fallback for browsers without color-mix */
.stat-box:nth-child(1) .stat-icon { background: rgba(59,130,246,.12); }
.stat-box:nth-child(2) .stat-icon { background: rgba(139,92,246,.12); }
.stat-box:nth-child(3) .stat-icon { background: rgba(6,182,212,.12); }
.stat-box:nth-child(4) .stat-icon { background: rgba(245,158,11,.12); }
.stat-box:nth-child(5) .stat-icon { background: rgba(16,185,129,.12); }
.stat-box:nth-child(6) .stat-icon { background: rgba(236,72,153,.12); }

.stat-box-num {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-dark);
    line-height: 1;
}
.stat-box-suffix { font-size: .8rem; color: var(--primary); font-weight: 600; }
.stat-box-lbl    { font-size: .78rem; color: var(--text-lighter); margin-top: .3rem; font-weight: 500; }

/* ============================================================
   COMPETENCIES
   ============================================================ */
.competencies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.comp-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem 1.75rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.comp-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--c1), var(--c2));
    transform: scaleX(0);
    transition: transform .3s ease;
    transform-origin: left;
}
.comp-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}
.comp-card:hover::before { transform: scaleX(1); }

.comp-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--c1), var(--c2));
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 1.3rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 4px 15px color-mix(in srgb, var(--c1) 40%, transparent);
}
.comp-card:nth-child(1) .comp-icon { box-shadow: 0 4px 15px rgba(37,99,235,.3); }
.comp-card:nth-child(2) .comp-icon { box-shadow: 0 4px 15px rgba(6,182,212,.3); }
.comp-card:nth-child(3) .comp-icon { box-shadow: 0 4px 15px rgba(139,92,246,.3); }
.comp-card:nth-child(4) .comp-icon { box-shadow: 0 4px 15px rgba(245,158,11,.3); }
.comp-card:nth-child(5) .comp-icon { box-shadow: 0 4px 15px rgba(16,185,129,.3); }
.comp-card:nth-child(6) .comp-icon { box-shadow: 0 4px 15px rgba(236,72,153,.3); }

.comp-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: .6rem;
}
.comp-card p {
    font-size: .875rem;
    color: var(--text-light);
    line-height: 1.65;
    margin-bottom: 1.25rem;
}
.comp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}
.comp-tags span {
    padding: .25rem .65rem;
    background: var(--bg-alt);
    border-radius: var(--radius-full);
    font-size: .72rem;
    font-weight: 600;
    color: var(--text-mid);
    border: 1px solid var(--border);
}

/* Leadership — 3 pillars */
.leadership-grid {
    grid-template-columns: repeat(3, 1fr);
}

/* Technical skills category grid */
.tech-skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-bottom: 0;
}
.tech-skill-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.35rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.tech-skill-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(37, 99, 235, .2);
}
.tech-skill-card-wide {
    grid-column: span 2;
}
.tech-skill-card h4 {
    font-size: .88rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.tech-skill-card h4 i {
    color: var(--primary);
    font-size: .95rem;
}
.section-alt .tech-skill-card {
    background: var(--white);
}

/* ============================================================
   EXPERIENCE / TIMELINE
   ============================================================ */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--cyan), var(--purple));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: -2.6rem;
    top: 1.5rem;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--dot-color, var(--primary));
    border: 3px solid var(--white);
    box-shadow: 0 0 0 2px var(--dot-color, var(--primary));
    z-index: 1;
}

.timeline-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.75rem 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}
.timeline-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(37,99,235,.15);
    transform: translateX(4px);
}

.tl-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}
.tl-company-info { display: flex; align-items: flex-start; gap: 1rem; flex: 1; }
.tl-company-badge {
    width: 48px; height: 48px;
    flex-shrink: 0;
    border-radius: 12px;
    background: var(--badge-bg, #eff6ff);
    color: var(--badge-color, #2563eb);
    display: flex; align-items: center; justify-content: center;
    font-size: .7rem; font-weight: 800;
    letter-spacing: .05em;
    border: 1px solid currentColor;
}
.tl-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
    margin-bottom: .4rem;
}
.tl-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    font-size: .78rem;
    color: var(--text-light);
}
.tl-company { font-weight: 700; color: var(--primary); }
.tl-period, .tl-location { display: flex; align-items: center; gap: .3rem; }
.tl-period i, .tl-location i { font-size: .7rem; color: var(--text-lighter); }

.tl-current-badge {
    flex-shrink: 0;
    padding: .25rem .75rem;
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    color: #15803d;
    border-radius: var(--radius-full);
    font-size: .7rem;
    font-weight: 700;
    border: 1px solid #86efac;
}

.tl-desc {
    font-size: .9rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.tl-achievements {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    margin-bottom: 1.25rem;
}
.tl-achievements li {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
    font-size: .875rem;
    color: var(--text-mid);
    line-height: 1.55;
}
.tl-achievements li i {
    color: var(--green);
    font-size: .75rem;
    margin-top: .22rem;
    flex-shrink: 0;
}
.tl-achievements li strong { color: var(--text-dark); }

.tl-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}
.tl-tags span {
    padding: .22rem .65rem;
    background: linear-gradient(135deg, rgba(37,99,235,.07), rgba(6,182,212,.07));
    border-radius: var(--radius-full);
    font-size: .72rem;
    font-weight: 600;
    color: var(--primary);
    border: 1px solid rgba(37,99,235,.15);
}

/* ============================================================
   SKILLS SECTION
   ============================================================ */
.skills-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.skill-group { margin-bottom: 2.5rem; }
.skill-group:last-child { margin-bottom: 0; }
.skill-group h4 {
    font-size: .9rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    text-transform: uppercase;
    letter-spacing: .06em;
}
.skill-group h4 i { color: var(--primary); }

.skill-bar-item { margin-bottom: 1rem; }
.skill-bar-header {
    display: flex;
    justify-content: space-between;
    font-size: .83rem;
    font-weight: 600;
    color: var(--text-mid);
    margin-bottom: .4rem;
}
.skill-track {
    height: 7px;
    background: var(--bg-alt);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.skill-fill {
    height: 100%;
    border-radius: var(--radius-full);
    background: linear-gradient(90deg, var(--bar-color, var(--primary)), color-mix(in srgb, var(--bar-color, var(--primary)) 70%, white));
    width: 0;
    transition: width 1s cubic-bezier(.4,0,.2,1);
}
.skill-fill.filled { width: attr(data-width "%"); }

/* Tech Cloud */
.skills-cloud { background: var(--white); border-radius: var(--radius-lg); padding: 2rem; border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.skills-cloud h4 {
    font-size: .9rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    text-transform: uppercase;
    letter-spacing: .06em;
}
.skills-cloud h4 i { color: var(--primary); }

.cloud-grid {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1rem;
}
.cloud-tag {
    padding: .35rem .8rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    border: 1px solid;
    transition: var(--transition);
    cursor: default;
}
.cloud-tag:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.size-xl { font-size: .9rem;  background: rgba(37,99,235,.1);  color: var(--primary);  border-color: rgba(37,99,235,.2); }
.size-lg { font-size: .82rem; background: rgba(6,182,212,.1);  color: #0891b2; border-color: rgba(6,182,212,.2); }
.size-md { font-size: .78rem; background: rgba(139,92,246,.1); color: var(--purple); border-color: rgba(139,92,246,.2); }
.size-sm { font-size: .73rem; background: rgba(16,185,129,.08); color: #059669; border-color: rgba(16,185,129,.18); }

.cert-list { display: flex; flex-direction: column; gap: .6rem; }
.cert-item {
    display: flex;
    align-items: center;
    gap: .7rem;
    font-size: .83rem;
    color: var(--text-mid);
    padding: .6rem .8rem;
    background: var(--bg-alt);
    border-radius: 8px;
    transition: var(--transition);
}
.cert-item:hover { background: rgba(37,99,235,.06); color: var(--primary); }
.cert-item i { color: var(--amber); font-size: .9rem; width: 16px; text-align: center; flex-shrink: 0; }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.project-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(37,99,235,.15);
}

.project-img-wrap {
    position: relative;
    overflow: hidden;
    height: 200px;
}
.project-img-wrap img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}
.project-card:hover .project-img-wrap img { transform: scale(1.08); }

.project-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(37,99,235,.85), rgba(6,182,212,.75));
    display: flex; align-items: center; justify-content: center;
    opacity: 0;
    transition: var(--transition);
}
.project-card:hover .project-overlay { opacity: 1; }

.project-link-btn {
    padding: .6rem 1.4rem;
    background: rgba(255,255,255,.2);
    border: 2px solid rgba(255,255,255,.7);
    border-radius: var(--radius-full);
    color: #fff;
    font-size: .82rem;
    font-weight: 700;
    display: flex; align-items: center; gap: .4rem;
    backdrop-filter: blur(8px);
    transition: var(--transition);
    transform: translateY(10px);
}
.project-card:hover .project-link-btn { transform: translateY(0); }
.project-link-btn:hover { background: rgba(255,255,255,.35); }

.project-category {
    position: absolute;
    top: .75rem; left: .75rem;
    padding: .22rem .7rem;
    background: rgba(15,23,42,.7);
    color: rgba(255,255,255,.9);
    border-radius: var(--radius-full);
    font-size: .7rem;
    font-weight: 600;
    backdrop-filter: blur(8px);
}

.project-body { padding: 1.4rem 1.5rem; }
.project-body h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: .6rem;
    line-height: 1.3;
}
.project-body p {
    font-size: .85rem;
    color: var(--text-light);
    line-height: 1.65;
    margin-bottom: 1rem;
}
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
}
.project-tags span {
    padding: .2rem .6rem;
    background: var(--bg-alt);
    border-radius: var(--radius-full);
    font-size: .68rem;
    font-weight: 600;
    color: var(--text-mid);
    border: 1px solid var(--border);
}

/* ============================================================
   RESUME SECTION
   ============================================================ */
.resume-wrapper { max-width: 900px; margin: 0 auto; }
.resume-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}
.resume-preview-container {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
}
.resume-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .8rem 1.25rem;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    font-size: .85rem;
    color: var(--text-mid);
    font-weight: 600;
}
.resume-preview-header i { color: #ef4444; margin-right: .4rem; }
.resume-preview-controls { display: flex; gap: .75rem; }
.resume-preview-controls a {
    color: var(--text-light);
    font-size: .95rem;
    transition: var(--transition-fast);
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 6px;
}
.resume-preview-controls a:hover { background: var(--border); color: var(--text-dark); }
.resume-iframe {
    width: 100%;
    height: 760px;
    border: none;
    display: block;
}
.resume-fallback {
    padding: .75rem 1.25rem;
    background: rgba(37,99,235,.04);
    border-top: 1px solid var(--border);
    font-size: .82rem;
    color: var(--text-light);
    text-align: center;
}
.resume-fallback i { color: var(--cyan); }
.resume-fallback a { color: var(--primary); font-weight: 600; }

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 1rem; }
.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.contact-card:hover {
    transform: translateX(4px);
    border-color: rgba(37,99,235,.25);
    box-shadow: var(--shadow-md);
}
.contact-card-icon {
    width: 42px; height: 42px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--cyan));
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: .9rem;
    flex-shrink: 0;
}
.contact-card h4 {
    font-size: .78rem;
    font-weight: 700;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: .15rem;
}
.contact-card a, .contact-card span {
    font-size: .88rem;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition-fast);
}
.contact-card a:hover { color: var(--primary); }

.contact-socials {
    display: flex;
    gap: .5rem;
    margin-top: .5rem;
    flex-wrap: wrap;
}
.cs-link {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    background: var(--white);
    border-radius: 10px;
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: .9rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.cs-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(37,99,235,.3);
}

/* Contact Form */
.contact-form-wrap {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem 2.25rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}
.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label {
    font-size: .8rem;
    font-weight: 700;
    color: var(--text-mid);
    display: flex;
    align-items: center;
    gap: .4rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.form-group label i { color: var(--primary); font-size: .75rem; }
.form-group input,
.form-group textarea {
    padding: .7rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: .9rem;
    color: var(--text-dark);
    background: var(--bg);
    transition: var(--transition-fast);
    resize: vertical;
    outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-lighter); }
.form-note {
    font-size: .8rem;
    color: var(--text-lighter);
    text-align: center;
}
.form-note a { color: var(--primary); font-weight: 600; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: #0a1628; color: rgba(255,255,255,.75); }
.footer-top { padding: 4rem 0; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
}
.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-bottom: 1rem;
}
.footer-brand .footer-logo span:not(.logo-gj) {
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
}
.footer-brand p {
    font-size: .85rem;
    line-height: 1.75;
    color: rgba(255,255,255,.55);
    margin-bottom: 1.25rem;
}
.footer-socials { display: flex; gap: .5rem; }
.footer-socials a {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 9px;
    color: rgba(255,255,255,.6);
    font-size: .82rem;
    transition: var(--transition);
}
.footer-socials a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}
.footer-links h4 {
    font-size: .8rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 1.25rem;
}
.footer-links ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-links ul li a,
.footer-links ul li span {
    font-size: .85rem;
    color: rgba(255,255,255,.5);
    transition: var(--transition-fast);
}
.footer-links ul li a:hover { color: var(--cyan); }
.footer-cta h4 {
    font-size: .8rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: .75rem;
}
.footer-cta p {
    font-size: .85rem;
    color: rgba(255,255,255,.5);
    margin-bottom: 1.25rem;
    line-height: 1.6;
}
.footer-cta .btn { display: flex; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 1.5rem 0;
    display: flex;
}
.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: .5rem;
}
.footer-bottom p {
    font-size: .8rem;
    color: rgba(255,255,255,.35);
}
.footer-bottom a { color: rgba(255,255,255,.5); transition: var(--transition-fast); }
.footer-bottom a:hover { color: var(--cyan); }

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 2rem; right: 2rem;
    width: 46px; height: 46px;
    background: linear-gradient(135deg, var(--primary), var(--cyan));
    color: #fff;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 999;
    cursor: pointer;
}
.back-to-top.visible {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(37,99,235,.4);
}

/* ============================================================
   NOTIFICATION
   ============================================================ */
.notification {
    position: fixed;
    top: 1.5rem; right: 1.5rem;
    max-width: 380px;
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    color: #fff;
    font-size: .88rem;
    font-weight: 500;
    z-index: 9999;
    display: flex; align-items: center; gap: .75rem;
    transform: translateX(120%);
    transition: transform .35s cubic-bezier(.4,0,.2,1);
    box-shadow: var(--shadow-xl);
}
.notification.show { transform: translateX(0); }
.notification.success { background: #059669; }
.notification.error   { background: #dc2626; }
.notification.info    { background: var(--primary); }

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--cyan));
    z-index: 9999;
    width: 0%;
    transition: width .1s linear;
}

/* ============================================================
   RESPONSIVE — Tablet (≤1024px)
   ============================================================ */
@media (max-width: 1024px) {
    .hero-content    { grid-template-columns: 1fr; text-align: center; }
    .hero-image      { display: none; }
    .hero-tags       { justify-content: center; }
    .hero-buttons    { justify-content: center; }
    .hero-socials    { justify-content: center; }
    .hero-description { margin: 0 auto 1.5rem; }

    .about-grid          { grid-template-columns: 1fr; }
    .stats-grid          { grid-template-columns: repeat(3,1fr); }
    .competencies-grid   { grid-template-columns: repeat(2,1fr); }
    .leadership-grid     { grid-template-columns: 1fr; }
    .tech-skills-grid    { grid-template-columns: repeat(2, 1fr); }
    .tech-skill-card-wide { grid-column: span 2; }
    .projects-grid       { grid-template-columns: repeat(2,1fr); }
    .skills-layout       { grid-template-columns: 1fr; }
    .contact-grid        { grid-template-columns: 1fr; }
    .footer-grid         { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .hero-stats          { gap: 0; }
    .stat-card           { padding: 0 1rem; }
}

/* ============================================================
   RESPONSIVE — Mobile (≤768px)
   ============================================================ */
@media (max-width: 768px) {
    .section { padding: 64px 0; }

    /* Nav */
    .nav-menu {
        position: fixed;
        top: 0; right: -100%;
        width: min(300px, 80vw);
        height: 100dvh;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 2rem 2rem;
        gap: .25rem;
        box-shadow: var(--shadow-xl);
        transition: right .35s cubic-bezier(.4,0,.2,1);
        z-index: 999;
        overflow-y: auto;
    }
    .nav-menu.open { right: 0; }
    .nav-link { color: var(--text-dark) !important; width: 100%; padding: .7rem 1rem; font-size: .95rem; }
    .btn-nav-cta { margin-top: .5rem; }
    .hamburger { display: flex; z-index: 1000; }
    .nav-overlay {
        position: fixed; inset: 0;
        background: rgba(0,0,0,.5);
        z-index: 998;
        display: none;
    }
    .nav-overlay.open { display: block; }

    /* Hero */
    .hero-container { padding: 100px 20px 60px; }
    .hero-title     { font-size: 2rem; }
    .hero-stats     { flex-direction: column; gap: 1rem; padding: 1.25rem; }
    .stat-divider   { display: none; }
    .stat-card      { flex-direction: row; gap: .5rem; align-items: center; width: 100%; justify-content: center; }
    .stat-lbl       { margin-top: 0; }

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

    /* Competencies & technical skills */
    .competencies-grid { grid-template-columns: 1fr; }
    .leadership-grid   { grid-template-columns: 1fr; }
    .tech-skills-grid  { grid-template-columns: 1fr; }
    .tech-skill-card-wide { grid-column: span 1; }

    /* Timeline */
    .timeline { padding-left: 1.5rem; }
    .timeline-dot { left: -2.1rem; }
    .tl-header { flex-direction: column; gap: .5rem; }
    .tl-company-info { flex-direction: column; gap: .5rem; }
    .tl-meta { flex-direction: column; gap: .25rem; }
    .form-row { grid-template-columns: 1fr; }

    /* Projects */
    .projects-grid { grid-template-columns: 1fr; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom .container { justify-content: center; text-align: center; }

    /* Resume */
    .resume-iframe { height: 500px; }
    .resume-actions { flex-direction: column; align-items: center; }
}

/* ============================================================
   RESPONSIVE — Small Mobile (≤480px)
   ============================================================ */
@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-title { font-size: 1.75rem; }
    .hero-buttons { flex-direction: column; align-items: stretch; }
    .hero-buttons .btn { justify-content: center; }
    .section-header h2 { font-size: 1.7rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .contact-form-wrap { padding: 1.5rem; }
    .resume-iframe { height: 400px; }
    .back-to-top { bottom: 1rem; right: 1rem; }
}

/* ============================================================
   UTILITY
   ============================================================ */
::selection { background: rgba(37,99,235,.2); color: var(--primary-dark); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }