/* ═══════════════════════════════════════════════
   style.css — Syed Hamzah Portfolio
   ═══════════════════════════════════════════════ */

/* ─── CSS Variables ─────────────────────────────── */
:root {
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg:        #0d0f14;
  --bg2:       #13161e;
  --bg3:       #1a1e2a;
  --border:    rgba(255,255,255,0.07);
  --text:      #e8eaf0;
  --text-muted:#7a7f94;
  --accent:    #5b8dee;
  --accent2:   #3ecf8e;
  --tag-bg:    rgba(91,141,238,0.12);
  --tag-text:  #8bb4f5;
  --card-bg:   #13161e;
  --nav-bg:    rgba(13,15,20,0.85);
}

[data-theme="light"] {
  --bg:        #f5f6fa;
  --bg2:       #ffffff;
  --bg3:       #eef0f8;
  --border:    rgba(0,0,0,0.08);
  --text:      #181c2e;
  --text-muted:#6b7080;
  --accent:    #2f6de1;
  --accent2:   #1a9e6a;
  --tag-bg:    rgba(47,109,225,0.09);
  --tag-text:  #2f6de1;
  --card-bg:   #ffffff;
  --nav-bg:    rgba(245,246,250,0.88);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* ─── Grid Background ───────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ─── Navbar ────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'DM Mono', monospace;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--bg3);
}

/* Theme Toggle */
.theme-toggle {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  width: 44px;
  height: 24px;
  cursor: pointer;
  position: relative;
  transition: background var(--transition);
  flex-shrink: 0;
}

.theme-toggle::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  transition: transform var(--transition), background var(--transition);
}

[data-theme="light"] .theme-toggle::after {
  transform: translateX(20px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Mobile Nav */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px 16px;
  border-top: 1px solid var(--border);
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-size: 14px;
  color: var(--text-muted);
  padding: 10px 12px;
  border-radius: 8px;
  transition: background var(--transition), color var(--transition);
}

.mobile-menu a:hover { background: var(--bg3); color: var(--text); }

/* ─── Page Content ──────────────────────────────── */
main {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Hero ──────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 60px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
  width: 100%;
  padding: 80px 0 60px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--accent2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-badge::before {
  content: '';
  display: block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent2);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-name {
  font-family: 'Fraunces', serif;
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.hero-name span { color: var(--accent); }

.hero-title {
  font-family: 'DM Mono', monospace;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.hero-title .cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid transparent;
}

.btn-primary:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background: var(--bg3);
  border-color: var(--accent);
  color: var(--accent);
}

/* Profile Picture */
.hero-photo-wrap {
  position: relative;
  flex-shrink: 0;
  width: 200px;
  height: 200px;
}

.hero-photo {
  width: 100%;
  height: 100%;
  border-radius: 24px;
  object-fit: cover;
  object-position: center;
  display: block;
  border: 2px solid var(--border);
  background: var(--bg3);
}

.photo-placeholder {
  width: 200px;
  height: 200px;
  border-radius: 24px;
  background: var(--bg3);
  border: 2px dashed var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 13px;
  font-family: 'DM Mono', monospace;
  text-align: center;
  padding: 16px;
}

.photo-placeholder svg { opacity: 0.4; }

.hero-photo-wrap::before {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 30px;
  border: 1px solid var(--border);
  z-index: -1;
}

.hero-photo-wrap::after {
  content: '';
  position: absolute;
  top: -4px; right: -4px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent2);
  border: 3px solid var(--bg);
}

/* Social Links */
.social-row {
  display: flex;
  gap: 10px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg2);
  font-size: 13px;
  color: var(--text-muted);
  font-family: 'DM Mono', monospace;
  transition: all var(--transition);
}

.social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(91,141,238,0.15);
}

.social-link svg { flex-shrink: 0; }

/* ─── Section Shared ────────────────────────────── */
section {
  padding: 96px 0;
  scroll-margin-top: 75px;
}

.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Fraunces', serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
  line-height: 1.15;
}

/* ─── Skills ────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  transition: border-color var(--transition), transform var(--transition);
}

.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.skill-icon {
  font-size: 22px;
  margin-bottom: 10px;
}

.skill-name {
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}

.skill-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

.skill-level {
  display: flex;
  gap: 4px;
  margin-top: 12px;
}

.skill-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border);
}

.skill-dot.filled { background: var(--accent); }

/* ─── Projects ──────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover {
  border-color: rgba(91,141,238,0.3);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.2);
}

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

.project-num {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.project-title {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.25;
}

.project-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 20px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.tag {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--tag-bg);
  color: var(--tag-text);
  letter-spacing: 0.03em;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  font-family: 'DM Mono', monospace;
  transition: gap var(--transition);
}

.project-link:hover { gap: 10px; }

.practice-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--accent2);
  background: rgba(62,207,142,0.1);
  border: 1px solid rgba(62,207,142,0.2);
  border-radius: 20px;
  padding: 3px 9px;
  margin-bottom: 12px;
}

/* ─── About ─────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-text p strong { color: var(--text); }

.roadmap {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.roadmap-item {
  display: flex;
  gap: 16px;
  padding-bottom: 24px;
  position: relative;
}

.roadmap-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 24px;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.roadmap-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg2);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.roadmap-dot.done {
  border-color: var(--accent2);
  background: rgba(62,207,142,0.1);
}

.roadmap-dot.current {
  border-color: var(--accent);
  background: rgba(91,141,238,0.15);
  animation: ring 2s ease-in-out infinite;
}

@keyframes ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(91,141,238,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(91,141,238,0); }
}

.roadmap-dot-inner {
  width: 8px; height: 8px;
  border-radius: 50%;
}

.roadmap-dot.done .roadmap-dot-inner  { background: var(--accent2); }
.roadmap-dot.current .roadmap-dot-inner { background: var(--accent); }

.roadmap-content-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 2px;
}

.roadmap-content-sub {
  font-size: 12px;
  color: var(--text-muted);
  font-family: 'DM Mono', monospace;
}

/* ─── Contact ────────────────────────────────────── */
#contact { padding-bottom: 48px; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color var(--transition), transform var(--transition);
}

.contact-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.contact-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-label {
  font-size: 11px;
  font-family: 'DM Mono', monospace;
  color: var(--text-muted);
  margin-bottom: 3px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-value {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}

/* ─── Footer ─────────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 28px 24px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 12px;
  color: var(--text-muted);
  transition: color var(--transition);
  font-family: 'DM Mono', monospace;
}

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

/* ─── Scroll animations ──────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Learning Journey / Currently Learning ──────── */
.learning-lead {
  font-size: 15.5px;
  color: var(--text-muted);
  max-width: 740px;
  line-height: 1.7;
  margin-top: -30px;
  margin-bottom: 40px;
}

.learning-tracks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.learning-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  overflow: hidden;
}

.learning-card:hover {
  transform: translateY(-4px);
  border-color: rgba(91, 141, 238, 0.4);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.16);
}

.learning-card.active-focus {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--card-bg) 0%, rgba(91, 141, 238, 0.05) 100%);
  box-shadow: 0 0 0 1px var(--accent), 0 12px 32px rgba(91, 141, 238, 0.14);
}

.learning-card.active-focus::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

.learning-card.upcoming-phase {
  border-style: dashed;
  opacity: 0.82;
}

.learning-card.upcoming-phase:hover {
  opacity: 1;
  border-style: solid;
}

.track-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.track-phase {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.track-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
}

.track-badge.completed {
  background: rgba(62, 207, 142, 0.12);
  color: var(--accent2);
  border: 1px solid rgba(62, 207, 142, 0.25);
}

.track-badge.active {
  background: rgba(91, 141, 238, 0.15);
  color: var(--accent);
  border: 1px solid rgba(91, 141, 238, 0.4);
  animation: pulse-active 2.2s infinite ease-in-out;
}

@keyframes pulse-active {
  0%, 100% { box-shadow: 0 0 0 0 rgba(91, 141, 238, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(91, 141, 238, 0); }
}

.track-badge.upcoming {
  background: var(--bg3);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.track-title {
  font-family: 'Fraunces', serif;
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.25;
}

.track-summary {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.track-topics-title {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.track-topics-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

.track-topics-list li {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.track-topics-list li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent);
}

.learning-card.completed .track-topics-list li svg {
  color: var(--accent2);
}

/* ─── Projects Filter Bar ────────────────────────── */
.projects-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 32px;
}

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

.filter-pill {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-pill:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--bg3);
}

.filter-pill.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(91, 141, 238, 0.25);
}

/* ─── Enhanced Project Cards ─────────────────────── */
.project-card {
  padding: 30px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.project-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.project-card-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.award-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.challenge-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(91, 141, 238, 0.12);
  color: var(--accent);
  border: 1px solid rgba(91, 141, 238, 0.3);
}

.capstone-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(168, 85, 247, 0.12);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

[data-theme="light"] .capstone-badge {
  color: #7e22ce;
}

.project-card-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  font-family: 'DM Mono', monospace;
  margin-top: -4px;
  margin-bottom: 16px;
}

/* Callout blocks inside projects */
.award-banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.22);
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
}

.award-banner strong {
  color: #f59e0b;
}

.challenge-banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(91, 141, 238, 0.08);
  border: 1px solid rgba(91, 141, 238, 0.22);
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
}

.capstone-banner {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(168, 85, 247, 0.08);
  border: 1px solid rgba(168, 85, 247, 0.22);
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
}

.project-subhead {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-top: 14px;
  margin-bottom: 6px;
}

.project-problem-text {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 2px solid var(--border);
}

.project-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.project-features-list li {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.project-features-list li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent2);
}

.project-contribution-box {
  background: var(--bg3);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 18px;
  border: 1px solid var(--border);
}

.project-contribution-box strong {
  color: var(--text);
  font-family: 'DM Mono', monospace;
}

.project-actions-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 12px;
}

.btn-project-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  font-family: 'DM Mono', monospace;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-project-action.primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid transparent;
}

.btn-project-action.primary:hover {
  filter: brightness(1.15);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(91, 141, 238, 0.3);
}

.btn-project-action.secondary {
  background: var(--bg2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-project-action.secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-project-action.disabled-pill {
  background: var(--bg3);
  color: var(--text-muted);
  border: 1px dashed var(--border);
  cursor: default;
  font-size: 12px;
  opacity: 0.85;
  padding: 6px 12px;
}

/* ─── Certifications Section ─────────────────────── */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.certificate-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.certificate-card:hover {
  border-color: rgba(91, 141, 238, 0.35);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.16);
}

.certificate-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.certificate-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(91, 141, 238, 0.1);
  border: 1px solid rgba(91, 141, 238, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.certificate-pill {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--bg3);
  color: var(--accent2);
  border: 1px solid rgba(62, 207, 142, 0.25);
}

.certificate-number {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.certificate-title {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.3;
}

.certificate-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.certificate-desc {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.certificate-skills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.certificate-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
}

.cert-instruction-note {
  margin-top: 36px;
  padding: 16px 20px;
  border-radius: 12px;
  background: var(--bg2);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.cert-instruction-note svg {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

/* ─── Resume / CV Section ────────────────────────── */
.resume-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.resume-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

.resume-card:hover {
  border-color: rgba(91, 141, 238, 0.4);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.16);
}

.resume-card-left {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  max-width: 650px;
}

.resume-icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(91, 141, 238, 0.12);
  border: 1px solid rgba(91, 141, 238, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.resume-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(62, 207, 142, 0.12);
  color: var(--accent2);
  border: 1px solid rgba(62, 207, 142, 0.25);
  margin-bottom: 8px;
}

.resume-card-title {
  font-family: 'Fraunces', serif;
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.25;
}

.resume-card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 10px;
}

.resume-file-note {
  font-family: 'DM Mono', monospace;
  font-size: 11.5px;
  color: var(--text-muted);
  opacity: 0.85;
}

.resume-file-note code {
  color: var(--accent);
  background: var(--bg3);
  padding: 2px 6px;
  border-radius: 4px;
}

.resume-card-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ─── Responsive ─────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links  { display: none; }
  .hamburger  { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 60px 0 40px;
    gap: 40px;
  }

  .hero-photo-wrap { order: -1; margin: 0 auto; }
  .photo-placeholder { margin: 0 auto; }
  .hero-desc  { margin-left: auto; margin-right: auto; }
  .hero-badge { justify-content: center; }
  .hero-cta   { justify-content: center; }
  .social-row { justify-content: center; }

  .about-grid            { grid-template-columns: 1fr; gap: 36px; }
  .contact-grid          { grid-template-columns: 1fr; }
  .skills-grid           { grid-template-columns: repeat(2, 1fr); }
  .learning-tracks-grid  { grid-template-columns: 1fr; }
  .certificates-grid     { grid-template-columns: 1fr; }
  .projects-header-row   { flex-direction: column; align-items: flex-start; }

  .resume-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }
  .resume-card-left {
    flex-direction: column;
  }
  .resume-card-actions {
    width: 100%;
  }
  .resume-card-actions .btn {
    flex: 1;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .skills-grid   { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card  { padding: 22px 18px; }
  .learning-card { padding: 22px 18px; }
  .certificate-card { padding: 22px 18px; }
  .resume-card   { padding: 20px 16px; }
}