/* ============================================================
   SHUVO BARMAN — PORTFOLIO
   Slate & Cyan — Sharp, Technical, Modern
   ============================================================ */

/* ---------- CSS VARIABLES (easy to customize) ---------- */
:root {
  --bg-base:       #0a0f1a;
  --bg-surface:    #0d1424;
  --bg-card:       #101929;
  --border:        #1a2d42;
  --border-light:  #1e3a52;
  --accent:        #38bdf8;
  --accent-dim:    #0ea5e9;
  --accent-glow:   rgba(56, 189, 248, 0.10);
  --text-primary:  #f0f6fc;
  --text-secondary:#7d9ab5;
  --text-muted:    #3d5a73;
  --white:         #ffffff;

  --font-display: 'Cormorant Garant', serif;
  --font-body:    'Syne', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --radius:        6px;
  --radius-lg:     14px;
  --transition:    0.3s ease;
  --shadow:        0 4px 24px rgba(0,0,0,0.5);
  --shadow-accent: 0 4px 32px rgba(56,189,248,0.15);
}

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

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

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

::selection { background: var(--accent); color: var(--bg-base); }

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-dim); }

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

/* ---------- UTILITY ---------- */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 48px;
}

section {
  padding: 100px 0;
}

/* Reveal-on-scroll — only activates after JS adds .js-loaded to body */
body.js-loaded .reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
body.js-loaded .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- NAVIGATION ---------- */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition), border-bottom var(--transition);
}
#navbar.scrolled {
  background: rgba(7, 11, 15, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}
.nav-logo span { color: var(--accent); }

.nav-links {
  list-style: none;
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--accent); }

.nav-cta {
  padding: 8px 20px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--accent) !important;
}
.nav-cta:hover {
  background: var(--accent-glow) !important;
  color: var(--accent) !important;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- HERO ---------- */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 70% 10%, rgba(56,189,248,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 70% at 5% 90%, rgba(14,165,233,0.06) 0%, transparent 60%);
}

/* Diagonal corner accent — Option B signature detail */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 52px 52px;
  opacity: 0.18;
  mask-image: radial-gradient(ellipse 80% 80% at 30% 50%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 30% 50%, black 20%, transparent 100%);
}

/* Glowing corner arc — right side */
#hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 420px;
  height: 420px;
  border-left: 1px solid rgba(56,189,248,0.10);
  border-bottom: 1px solid rgba(56,189,248,0.10);
  border-radius: 0 0 0 100%;
  pointer-events: none;
  z-index: 1;
}

/* Small glowing dot — top right accent */
#hero::before {
  content: '';
  position: absolute;
  top: 36px;
  right: 36px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
  pointer-events: none;
  z-index: 1;
  box-shadow: 0 0 12px rgba(56,189,248,0.5);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-greeting {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.2s forwards;
}
.hero-greeting::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.hero-name {
  font-family: var(--font-body);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.4s forwards;
}
.hero-name-accent {
  color: var(--accent);
}

.hero-title {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 560px;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.6s forwards;
}
.hero-title strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.9s forwards;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.75s forwards;
}
.hero-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(56,189,248,0.2);
  padding: 5px 13px;
  border-radius: 4px;
  transition: all var(--transition);
}
.hero-badge:hover {
  background: rgba(56,189,248,0.16);
  border-color: var(--accent);
}


/* ---------- BUTTONS ---------- */
.btn-primary {
  display: inline-block;
  padding: 13px 28px;
  background: var(--accent);
  color: var(--bg-base);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition);
  border: 1px solid var(--accent);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  color: var(--bg-base);
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn-outline {
  display: inline-block;
  padding: 13px 28px;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeUp 0.8s ease 1.2s forwards;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
.hero-scroll span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---------- ABOUT ---------- */
#about {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: stretch;
}

.about-visual {
  position: relative;
  display: flex;
  flex-direction: column;
}

.about-photo-wrapper {
  position: relative;
  flex: 1;
  min-height: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
.about-photo-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter var(--transition);
}
.about-photo-wrapper:hover img { filter: grayscale(0%); }

/* Styled initials placeholder — shown when no photo is provided */
.photo-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 4rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--bg-card);
  letter-spacing: 0.05em;
  pointer-events: none;
}
/* Hide placeholder when the real image loads successfully */
.about-photo-wrapper img + .photo-placeholder { display: none; }
.about-photo-wrapper img[style*="display:none"] + .photo-placeholder,
.about-photo-wrapper img[style*="display: none"] + .photo-placeholder { display: flex; }

/* Cyan frame accent */
.about-photo-wrapper::before {
  content: '';
  position: absolute;
  inset: -12px;
  border: 1px solid var(--accent);
  border-radius: calc(var(--radius-lg) + 4px);
  z-index: -1;
  opacity: 0.25;
}

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

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: border-color var(--transition);
}
.stat-card:hover { border-color: var(--accent); }
.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.about-text {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 0.98rem;
  line-height: 1.75;
}
.about-text p:last-of-type { margin-bottom: 0; }

.about-current {
  margin-top: 0;
  padding: 18px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.about-current-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.about-current p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Achievement highlights row */
.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0;
}
.highlight-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: border-color var(--transition);
}
.highlight-item:hover {
  border-color: var(--border-light);
  border-left-color: var(--accent);
}
.highlight-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  min-width: 72px;
  flex-shrink: 0;
  text-align: left;
}
.highlight-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ---------- EXPERIENCE ---------- */
#experience { background: var(--bg-base); }

.timeline {
  position: relative;
  padding-left: 32px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 56px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -37px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg-base);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.timeline-card:hover {
  border-color: var(--border-light);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.timeline-company {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
/* Multi-role blocks within one company card */
.timeline-role-block {
  margin-bottom: 8px;
}
.timeline-role-block:last-child {
  margin-bottom: 0;
}

.timeline-role {
  font-size: 0.85rem;
  color: var(--accent);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.timeline-role-sep {
  color: var(--text-muted);
  margin: 0 4px;
}

.timeline-role-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

/* "Retained via" label for MaMoni combined entry */
.timeline-retained {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.timeline-retained span {
  color: var(--text-secondary);
  display: block;
}
.timeline-retained span::before {
  content: '—';
  color: var(--text-muted);
  margin-right: 8px;
}

/* inline code in timeline bullets */
.timeline-list code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 1px 6px;
  border-radius: 3px;
}

.timeline-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 16px;
  transition: color var(--transition);
}
.timeline-link:hover { color: var(--accent); }

.timeline-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.timeline-list li {
  position: relative;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}
.timeline-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--accent);
  font-size: 0.8rem;
}
.timeline-list li strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* ---------- EDUCATION ---------- */
#education {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color var(--transition), transform var(--transition);
}
.edu-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.edu-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.edu-degree {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.3;
}
.edu-school {
  font-size: 0.88rem;
  color: var(--accent);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}
.edu-year {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
}
.edu-detail {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* ---------- CERTIFICATIONS ---------- */
#certifications {
  background: var(--bg-base);
  border-bottom: 1px solid var(--border);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition), transform var(--transition);
}
.cert-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.cert-issuer-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(56,189,248,0.2);
  padding: 3px 10px;
  border-radius: 4px;
}

.cert-name {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

.cert-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.cert-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: auto;
  padding-top: 8px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.cert-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}


/* ---------- EXTRACURRICULAR ---------- */
#extracurricular { background: var(--bg-base); }

.extra-single {
  max-width: 860px;
}

.extra-main-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  transition: border-color var(--transition);
}
.extra-main-card:hover { border-color: var(--border-light); }

.extra-main-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.extra-main-org {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.extra-main-role {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.extra-main-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.extra-main-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color var(--transition);
  flex-shrink: 0;
}
.extra-main-link:hover { color: var(--accent); }

.extra-main-divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

.extra-events-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.extra-events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.extra-event-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  text-decoration: none;
  display: block;
  transition: border-color var(--transition), transform var(--transition);
}
.extra-event-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.extra-event-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 6px;
}

.extra-event-date {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* ---------- PROJECTS ---------- */
#projects {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.project-banner {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}
.project-banner-icon {
  font-size: 3rem;
  opacity: 0.7;
}
/* Decorative gradient bg per card */
.project-card:nth-child(1) .project-banner { background: radial-gradient(ellipse at center, rgba(200,169,94,0.08), transparent 70%), var(--bg-surface); }
.project-card:nth-child(2) .project-banner { background: radial-gradient(ellipse at center, rgba(94,139,200,0.08), transparent 70%), var(--bg-surface); }
.project-card:nth-child(3) .project-banner { background: radial-gradient(ellipse at center, rgba(200,94,94,0.08), transparent 70%), var(--bg-surface); }

.project-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.project-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(56,189,248,0.2);
  padding: 3px 10px;
  border-radius: 20px;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}
.project-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 14px;
}

.project-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
  flex: 1;
}
.project-bullets li {
  position: relative;
  padding-left: 16px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
}
.project-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  top: 1px;
  color: var(--accent);
  font-size: 0.75rem;
}
.project-bullets li strong {
  color: var(--text-primary);
  font-weight: 600;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color var(--transition);
  margin-top: auto;
  align-self: flex-start;
}
.project-link:hover { border-color: var(--accent); color: var(--accent); }
.project-link svg { transition: transform var(--transition); }
.project-link:hover svg { transform: translateX(4px); }

/* ---------- SKILLS (embedded in About) ---------- */
.about-skills {
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.about-skills-header {
  margin-bottom: 28px;
}

.about-skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.skill-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.skill-group-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.skill-group-title svg {
  color: var(--accent);
  flex-shrink: 0;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pill {
  padding: 5px 13px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  cursor: default;
}
.skill-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* ---------- CONTACT / FOOTER ---------- */
#contact {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 120px 0;
}

.contact-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.contact-heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  line-height: 1.1;
}

.contact-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 480px;
  margin: 0 auto 40px;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}
.social-link {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.social-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
  transform: translateY(-3px);
}
.social-link svg { width: 20px; height: 20px; }

footer {
  background: var(--bg-base);
  border-top: 1px solid var(--border);
  padding: 28px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}
.footer-back-top {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}
.footer-back-top:hover { color: var(--accent); }

/* ---------- ANIMATIONS ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.15); }
}

/* ---------- MOBILE ---------- */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-visual { max-width: 360px; }
  .about-photo-wrapper { aspect-ratio: 1; }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }

  .nav-links { 
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(7,11,15,0.98);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1rem; }
  .nav-toggle { display: flex; z-index: 1001; }

  .hero-name { font-size: clamp(2.8rem, 12vw, 4.5rem); }
  .section-heading { margin-bottom: 32px; }

  .timeline { padding-left: 20px; }
  .timeline-dot { left: -25px; }

  .projects-grid { grid-template-columns: 1fr; }
  .education-grid { grid-template-columns: 1fr; }

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

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; text-align: center; }
  .about-stats { grid-template-columns: 1fr 1fr; }
}