/* =============================================
   KAMRAN PORTFOLIO — style.css
   ============================================= */

/* ---- VARIABLES ---- */
:root {
  --bg: #060d1a;
  --card: #0d1f35;
  --accent: #00c8ff;
  --text: #e8f4ff;
  --muted: #6b8caa;
  --border: rgba(0, 200, 255, 0.15);
  --glow: rgba(0, 200, 255, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

/* ---- NOISE OVERLAY ---- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
  opacity: 0.35;
}

/* =============================================
   LOADER
   ============================================= */
#loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  transition: opacity 0.6s ease;
}

.loader-ring {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 3px solid rgba(0, 200, 255, 0.2);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}

.loader-name {
  font-family: 'Space Mono', monospace;
  color: var(--accent);
  font-size: 1rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  animation: blinkAnim 1s ease-in-out infinite;
}

/* =============================================
   NAVBAR
   ============================================= */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2rem;
  background: rgba(6, 13, 26, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: padding 0.3s ease, box-shadow 0.3s ease;
}

nav.scrolled {
  padding: 0.75rem 2rem;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

/* Nav Logo */
.nav-logo {
  font-family: 'Space Mono', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  border: 2px solid var(--accent);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s;
  text-decoration: none;
}

.nav-logo:hover {
  background: var(--accent);
  color: var(--bg);
}

/* Nav right group */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.25s;
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.25s;
}

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

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

.nav-reach {
  font-family: 'Space Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--accent);
  padding: 0.4rem 1rem;
  border-radius: 2px;
  transition: background 0.25s, color 0.25s, transform 0.2s;
}

.nav-reach:hover {
  background: var(--accent);
  color: var(--bg);
  transform: translateY(-1px);
}

/* Active nav link */
.nav-link-item.active {
  color: var(--accent);
}

.nav-link-item.active::after {
  width: 100%;
}

/* =============================================
   HAMBURGER
   ============================================= */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   MOBILE NAV OVERLAY
   ============================================= */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 850;
  background: rgba(6, 13, 26, 0.97);
  backdrop-filter: blur(20px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 0;
}

.mob-link {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.08em;
  transition: color 0.2s;
  position: relative;
}

.mob-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s;
}

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

.mob-link:hover::after {
  width: 100%;
}

/* =============================================
   HERO
   ============================================= */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 7rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

/* Grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 50% 50%, rgba(0, 200, 255, 0.07) 0%, transparent 65%),
    linear-gradient(rgba(0, 200, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 200, 255, 0.04) 1px, transparent 1px);
  background-size: 100% 100%, 60px 60px, 60px 60px;
  animation: gridPulse 8s ease-in-out infinite;
}

/* ---- BUBBLES — always float from bottom, across full viewport ---- */
#bubble-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  /* behind everything */
  overflow: hidden;
}

.bubble {
  position: absolute;
  bottom: -80px;
  /* start below viewport */
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%,
      rgba(0, 200, 255, 0.35),
      rgba(0, 120, 200, 0.08) 70%,
      transparent 100%);
  border: 1px solid rgba(0, 200, 255, 0.25);
  animation: bubbleFloat linear infinite;
  pointer-events: none;
}

@keyframes bubbleFloat {
  0% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0;
  }

  5% {
    opacity: 1;
  }

  50% {
    transform: translateY(-50vh) translateX(var(--drift)) scale(1.05);
  }

  95% {
    opacity: 0.6;
  }

  100% {
    transform: translateY(-110vh) translateX(calc(var(--drift) * 1.5)) scale(0.8);
    opacity: 0;
  }
}

/* AVATAR */
.avatar-wrap {
  position: relative;
  margin-bottom: 2.2rem;
  z-index: 2;
  animation: fadeUp 0.9s ease both;
}

.spin-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px dashed rgba(0, 200, 255, 0.35);
  animation: spinRing 12s linear infinite;
}

.avatar-ring {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--card);
  animation: pulseRing 3s ease-in-out infinite;
}

.avatar-ring img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* Hero text */
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-greeting {
  font-size: 1rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  animation: fadeUp 0.9s 0.15s ease both;
}

.hero-name {
  font-size: clamp(3rem, 8vw, 5.2rem);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
  animation: fadeUp 0.9s 0.25s ease both;
  background: linear-gradient(135deg, #fff 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-family: 'Space Mono', monospace;
  font-size: 0.88rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 1.4rem;
  animation: fadeUp 0.9s 0.35s ease both;
  min-height: 1.5em;
}

.hero-bio {
  max-width: 520px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 2.2rem;
  animation: fadeUp 0.9s 0.45s ease both;
}

/* Skill pills */
.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-bottom: 2.5rem;
  animation: fadeUp 0.9s 0.55s ease both;
}

.pill {
  padding: 0.45rem 1.1rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: default;
  transition: transform 0.2s, box-shadow 0.2s;
}

.pill:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.pill-cyan {
  background: var(--accent);
  color: var(--bg);
}

.pill-red {
  background: #e84393;
  color: #fff;
}

.pill-blue {
  background: #4a6fff;
  color: #fff;
}

.pill-green {
  background: #00c97a;
  color: var(--bg);
}

.pill-purple {
  background: #9b59f5;
  color: #fff;
}

/* CTA buttons */
.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp 0.9s 0.65s ease both;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  padding: 0.75rem 2rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: 'Outfit', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}

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

/* =============================================
   SCROLL INDICATOR
   ============================================= */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--muted);
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  animation: fadeUp 1s 1.2s ease both;
  transition: color 0.2s;
}

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

.scroll-mouse {
  width: 22px;
  height: 34px;
  border: 2px solid currentColor;
  border-radius: 11px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 5px;
}

.scroll-dot {
  width: 3px;
  height: 6px;
  background: currentColor;
  border-radius: 2px;
  animation: scrollDot 1.8s ease-in-out infinite;
}

@keyframes scrollDot {
  0%   { transform: translateY(0); opacity: 1; }
  60%  { transform: translateY(10px); opacity: 0; }
  61%  { transform: translateY(0); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

/* =============================================
   SHARED SECTION LAYOUT
   ============================================= */
section {
  padding: 5rem 2rem 3rem;
  max-width: 900px;
  margin: 0 auto;
}


.section-label {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  font-style: italic;
  margin-bottom: 3rem;
  color: var(--text);
}

/* =============================================
   QUOTE SLIDER
   ============================================= */
.quote-section {
  max-width: 900px;
  padding: 0 2rem 4rem;
  margin: 0 auto;
}

.quote-slider {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  /* fixed height so all three slides match */
  min-height: 220px;
  display: flex;
  flex-direction: column;
}

.quote-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
  flex: 1;
}

.quote-slide {
  min-width: 100%;
  padding: 2.5rem 3rem 2rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  /* uniform height */
  box-sizing: border-box;
}

.quote-mark {
  position: absolute;
  top: 0.8rem;
  right: 1.5rem;
  font-size: 5rem;
  line-height: 1;
  color: rgba(0, 200, 255, 0.07);
  font-family: Georgia, serif;
  pointer-events: none;
  user-select: none;
}

.quote-text {
  font-size: 1.1rem;
  line-height: 1.85;
  color: var(--text);
  font-style: italic;
  margin-bottom: 1.1rem;
}

.quote-author {
  font-family: 'Space Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent);
}

/* Dots bar — seamlessly attached below slider */
.quote-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-top: 1px solid rgba(0, 200, 255, 0.08);
  border-left: 4px solid var(--accent);
  border-radius: 0 0 12px 12px;
}

.quote-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  cursor: pointer;
  transition: background 0.25s, transform 0.25s;
  border: none;
  outline: none;
  padding: 0;
}

.quote-dot.active {
  background: var(--accent);
  transform: scale(1.35);
}

/* =============================================
   CARDS (Education)
   ============================================= */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(.2, .8, .3, 1), box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 200, 255, 0.12);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

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

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 200, 255, 0.03) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  border-radius: 12px;
}

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

.edu-logo-wrap {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  background: transparent;
  backdrop-filter: blur(5px);
  overflow: hidden;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s;
  flex-shrink: 0;
}

.card:hover .edu-logo-wrap {
  transform: scale(1.05) rotate(-2deg);
}

.edu-logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-title {
  font-size: 1.22rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.card-sub {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.card-divider {
  height: 1px;
  background: var(--border);
  margin: 0.75rem 0;
}

.card-meta {
  font-family: 'Space Mono', monospace;
  font-size: 0.8rem;
  color: var(--muted);
}

.card-body {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.75;
  margin-top: 0.75rem;
}

.card-tech {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.gpa-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), #0060aa);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.25rem 0.85rem;
  border-radius: 20px;
  margin-top: 0.5rem;
  font-family: 'Space Mono', monospace;
}

.num-badge {
  position: absolute;
  bottom: -12px;
  right: -12px;
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--bg);
  border-radius: 8px;
  font-family: 'Space Mono', monospace;
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}

.card:hover .num-badge {
  transform: scale(1.1) rotate(5deg);
}

/* =============================================
   SKILLS
   ============================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.skill-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  transition: transform 0.3s, border-color 0.3s;
}

.skill-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 200, 255, 0.35);
}

.skill-category {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-family: 'Space Mono', monospace;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  cursor: default;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.skill-chip:hover {
  background: rgba(0, 200, 255, 0.1);
  border-color: rgba(0, 200, 255, 0.3);
  transform: scale(1.05);
}

.skill-chip i {
  font-size: 0.95rem;
  vertical-align: middle;
  margin-right: 0.15rem;
}

/* =============================================
   LEETCODE CARD
   ============================================= */
.leetcode-card {
  margin-top: 2rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.leetcode-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(0, 200, 255, 0.1);
}

.leetcode-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #ffa116, transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

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

.lc-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.lc-logo {
  width: 40px;
  height: 40px;
  background: #ffa116;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 900;
  color: #1a1a1a;
  font-family: 'Space Mono', monospace;
  flex-shrink: 0;
}

.lc-username {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.lc-rank {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--muted);
}

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

.lc-stat {
  background: rgba(255, 161, 22, 0.05);
  border: 1px solid rgba(255, 161, 22, 0.15);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  transition: transform 0.2s, background 0.2s;
}

.lc-stat:hover {
  transform: scale(1.03);
  background: rgba(255, 161, 22, 0.1);
}

.lc-stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: 'Space Mono', monospace;
  display: block;
  margin-bottom: 0.3rem;
}

.lc-stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: 'Space Mono', monospace;
}

.lc-easy .lc-stat-num,
.lc-easy .lc-stat-label {
  color: #00b8a3;
}

.lc-medium .lc-stat-num,
.lc-medium .lc-stat-label {
  color: #ffa116;
}

.lc-hard .lc-stat-num,
.lc-hard .lc-stat-label {
  color: #ff375f;
}

.lc-progress {
  margin-top: 0.5rem;
}

.lc-prog-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.lc-prog-label {
  font-size: 0.78rem;
  font-family: 'Space Mono', monospace;
  width: 52px;
  flex-shrink: 0;
}

.lc-prog-bar {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 3px;
  overflow: hidden;
}

.lc-prog-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.lc-prog-count {
  font-size: 0.75rem;
  font-family: 'Space Mono', monospace;
  color: var(--muted);
  width: 65px;
  text-align: right;
  flex-shrink: 0;
}

.lc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #ffa116;
  text-decoration: none;
  font-family: 'Space Mono', monospace;
  font-size: 0.78rem;
  border: 1px solid rgba(255, 161, 22, 0.3);
  padding: 0.4rem 0.9rem;
  border-radius: 4px;
  transition: background 0.2s, transform 0.2s;
  margin-top: 1.2rem;
}

.lc-link:hover {
  background: rgba(255, 161, 22, 0.1);
  transform: translateY(-1px);
}

/* =============================================
   CERTIFICATIONS — CREDLY BADGES
   ============================================= */
.badges-wrapper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  justify-items: center;
  align-items: stretch;
  gap: 2rem;
}

.badge-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem 1.8rem 1.6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(.2, .8, .3, 1), box-shadow 0.35s, border-color 0.35s;
  width: 100%;
}

.cert-label {
  text-align: center;
  padding-top: 0.4rem;
  border-top: 1px solid var(--border);
  width: 100%;
}

.cert-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 0.2rem;
}

.cert-issuer {
  font-size: 0.72rem;
  color: var(--accent);
  font-family: 'Space Mono', monospace;
  letter-spacing: 0.03em;
}

.badge-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.35s;
}

.badge-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 52px rgba(0, 200, 255, 0.15);
  border-color: rgba(0, 200, 255, 0.35);
}

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

/* The Credly iframe sits inside this container */
.badge-embed {
  display: flex;
  align-items: center;
  justify-content: center;
  /* fixed size matches data-iframe-width/height */
  width: 150px;
  height: 270px;
  border-radius: 8px;
  overflow: hidden;
  position: relative; /* required so ::before shimmer is contained here, not .badge-card */
}

/* Loading shimmer shown while iframe loads */
.badge-embed::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,
      rgba(0, 200, 255, 0.03) 0%,
      rgba(0, 200, 255, 0.08) 50%,
      rgba(0, 200, 255, 0.03) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.8s ease-in-out infinite;
  border-radius: 8px;
  pointer-events: none;
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

@media (max-width: 700px) {
  .badges-wrapper {
    gap: 1.5rem;
  }

  .badge-card {
    min-width: 180px;
    padding: 1.5rem 1.2rem 1.2rem;
  }
}

/* =============================================
   CONTACT
   ============================================= */
#contact {
  text-align: center;
  padding: 5rem 2rem 2rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  max-width: 700px;
  margin: 2.5rem auto 0;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  transition: transform 0.3s cubic-bezier(.2, .8, .3, 1), box-shadow 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 200, 255, 0.05) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s;
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(0, 200, 255, 0.12);
  border-color: var(--accent);
}

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

.contact-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 200, 255, 0.08);
  border: 1px solid rgba(0, 200, 255, 0.15);
  transition: transform 0.3s, background 0.3s;
}

.contact-card:hover .contact-icon-wrap {
  transform: scale(1.1);
  background: rgba(0, 200, 255, 0.15);
}

.contact-icon-wrap svg {
  width: 22px;
  height: 22px;
}

.contact-label {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: 'Space Mono', monospace;
}

.contact-value {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

.contact-full {
  grid-column: 1 / -1;
}

/* =============================================
   FOOTER
   ============================================= */
footer {
  text-align: center;
  padding: 1rem 2rem 0rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  font-family: 'Space Mono', monospace;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding-bottom: 0;
}

.footer-social {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.footer-icon {
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.06);
  background: rgba(255,255,255,0.03);
  transition: color 0.2s, border-color 0.2s, transform 0.2s, background 0.2s;
  text-decoration: none;
}

.footer-icon:hover {
  color: var(--accent);
  border-color: rgba(0, 200, 255, 0.3);
  background: rgba(0, 200, 255, 0.06);
  transform: translateY(-2px);
}

.footer-copy {
  margin: 0;
  color: var(--muted);
}

footer span {
  color: var(--accent);
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.08);
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}

.back-to-top:hover {
  color: var(--accent);
  border-color: rgba(0, 200, 255, 0.3);
  transform: translateY(-2px);
}

/* =============================================
   SCROLL REVEAL
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* =============================================
   KEYFRAMES
   ============================================= */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes blinkAnim {

  0%,
  100% {
    opacity: 1
  }

  50% {
    opacity: 0.4
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px)
  }

  to {
    opacity: 1;
    transform: translateY(0)
  }
}

@keyframes gridPulse {

  0%,
  100% {
    opacity: 0.5
  }

  50% {
    opacity: 1
  }
}

@keyframes pulseRing {

  0%,
  100% {
    box-shadow: 0 0 30px rgba(0, 200, 255, 0.25), 0 0 60px rgba(0, 200, 255, 0.08);
  }

  50% {
    box-shadow: 0 0 50px rgba(0, 200, 255, 0.5), 0 0 100px rgba(0, 200, 255, 0.15);
  }
}

@keyframes spinRing {
  from {
    transform: rotate(0)
  }

  to {
    transform: rotate(360deg)
  }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: flex;
  }

  nav {
    padding: 1rem 1.2rem;
  }
}

@media (max-width: 600px) {
  section {
    padding: 4rem 1.2rem;
  }

  #contact {
    padding-bottom: 1.5rem;
  }

  #certifications {
    padding-bottom: 1.5rem;
  }

  .lc-stats {
    gap: 0.6rem;
  }

  .lc-stat-num {
    font-size: 1.2rem;
  }

  .quote-slide {
    padding: 2rem 2rem 1.5rem;
  }
}

/* Last section overrides — no bottom gap before footer */
#contact {
  padding-bottom: 2.5rem;
}

#certifications {
  padding-bottom: 0;
}

/* =============================================
   PROJECTS SECTION
   ============================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.8rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: transform 0.35s cubic-bezier(.2,.8,.3,1), box-shadow 0.35s, border-color 0.35s;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.35s;
}

.project-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 20px 52px rgba(0,200,255,0.13);
  border-color: rgba(0,200,255,0.32);
}

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

.project-featured {
  border-color: rgba(0,200,255,0.25);
  background: linear-gradient(135deg, #0d1f35 80%, rgba(0,200,255,0.04) 100%);
}

.project-top {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.project-event-badges {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.proj-badge {
  font-family: 'Space Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.22rem 0.7rem;
  border-radius: 20px;
  letter-spacing: 0.04em;
}

.badge-hackathon {
  background: rgba(255,180,0,0.12);
  border: 1px solid rgba(255,180,0,0.35);
  color: #ffb400;
}

.badge-event {
  background: rgba(155,89,245,0.12);
  border: 1px solid rgba(155,89,245,0.35);
  color: #b07ef8;
}

.badge-live {
  background: rgba(0,201,122,0.1);
  border: 1px solid rgba(0,201,122,0.3);
  color: #00c97a;
}

.badge-wip {
  background: rgba(106,143,170,0.12);
  border: 1px solid rgba(106,143,170,0.25);
  color: var(--muted);
}

.project-links {
  display: flex;
  gap: 0.5rem;
}

.proj-link {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 0.22rem 0.65rem;
  border-radius: 4px;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.proj-link:hover {
  background: rgba(0,200,255,0.1);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.proj-title-sub {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--muted);
  font-family: 'Space Mono', monospace;
}

.project-tagline {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin: 0;
}

.project-desc {
  color: var(--muted);
  font-size: 0.91rem;
  line-height: 1.75;
  margin: 0;
  flex: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.tech-chip {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.22rem 0.65rem;
  border-radius: 4px;
  font-family: 'Space Mono', monospace;
  letter-spacing: 0.02em;
}

.tc-ai {
  background: rgba(0,200,255,0.1);
  border: 1px solid rgba(0,200,255,0.25);
  color: var(--accent);
}

.tc-lang {
  background: rgba(74,111,255,0.1);
  border: 1px solid rgba(74,111,255,0.25);
  color: #7a9fff;
}

.tc-web {
  background: rgba(155,89,245,0.1);
  border: 1px solid rgba(155,89,245,0.25);
  color: #b07ef8;
}

.tc-cloud {
  background: rgba(0,201,122,0.08);
  border: 1px solid rgba(0,201,122,0.22);
  color: #00c97a;
}

.tc-tool {
  background: rgba(106,143,170,0.1);
  border: 1px solid rgba(106,143,170,0.2);
  color: var(--muted);
}

@media (max-width: 820px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   MANUAL CERT CARD (Google AI Fundamentals)
   ============================================= */
.badge-card-manual {
  justify-content: center;
  text-align: center;
  gap: 0.8rem;
  min-height: 320px;
}

.manual-cert-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 2px solid rgba(0,200,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  background: rgba(0,200,255,0.05);
}

.manual-cert-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.manual-cert-issuer {
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.manual-cert-date {
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
}

.manual-cert-verify {
  display: inline-block;
  margin-top: 0.4rem;
  font-family: 'Space Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid rgba(0,200,255,0.3);
  padding: 0.35rem 0.9rem;
  border-radius: 4px;
  transition: background 0.2s, transform 0.2s;
}

.manual-cert-verify:hover {
  background: rgba(0,200,255,0.1);
  transform: translateY(-1px);
}

.badge-uni {
  background: rgba(0,201,122,0.08);
  border: 1px solid rgba(0,201,122,0.25);
  color: #00c97a;
}

/* =============================================
   CURRENTLY LEARNING BANNER
   ============================================= */
.learning-banner {
  margin-top: 2rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid #00c97a;
  border-radius: 12px;
  padding: 1.6rem 2rem;
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.learning-banner:hover {
  box-shadow: 0 12px 40px rgba(0, 201, 122, 0.1);
}

.learning-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #00c97a, transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.learning-banner:hover::before {
  opacity: 1;
}

.learning-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  padding-top: 0.2rem;
}

.learning-pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #00c97a;
  box-shadow: 0 0 0 0 rgba(0, 201, 122, 0.5);
  animation: pulseGreen 2s infinite;
  flex-shrink: 0;
}

@keyframes pulseGreen {
  0%   { box-shadow: 0 0 0 0 rgba(0, 201, 122, 0.5); }
  70%  { box-shadow: 0 0 0 10px rgba(0, 201, 122, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 201, 122, 0); }
}

.learning-tag {
  font-family: 'Space Mono', monospace;
  font-size: 0.62rem;
  font-weight: 700;
  color: #00c97a;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
}

.learning-content {
  flex: 1;
  min-width: 200px;
}

.learning-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.learning-desc {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 0.9rem;
}

.learning-desc strong {
  color: #00c97a;
  font-weight: 600;
}

.learning-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.learning-link {
  font-family: 'Space Mono', monospace;
  font-size: 0.78rem;
  color: #00c97a;
  text-decoration: none;
  border: 1px solid rgba(0, 201, 122, 0.3);
  padding: 0.4rem 1rem;
  border-radius: 4px;
  align-self: center;
  flex-shrink: 0;
  transition: background 0.2s, transform 0.2s;
  white-space: nowrap;
}

.learning-link:hover {
  background: rgba(0, 201, 122, 0.1);
  transform: translateY(-1px);
}

@media (max-width: 600px) {
  .learning-banner {
    flex-direction: column;
    gap: 1rem;
  }

  .learning-left {
    flex-direction: row;
    align-items: center;
  }

  .learning-tag {
    writing-mode: horizontal-tb;
    transform: none;
  }

  .learning-link {
    align-self: flex-start;
  }
}
/* =============================================
   RESPONSIVE — SKILLS GRID
   Fix: was always 3 columns, breaks on mobile
   ============================================= */
@media (max-width: 720px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   RESPONSIVE — BADGES / CERTIFICATIONS
   Fix: was always 3 columns, breaks on mobile
   ============================================= */
@media (max-width: 860px) {
  .badges-wrapper {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .badges-wrapper {
    grid-template-columns: 1fr;
  }

  .badge-card {
    max-width: 320px;
    margin: 0 auto;
    width: 100%;
  }
}

/* =============================================
   RESPONSIVE — SMALL SCREENS (< 400px)
   ============================================= */
@media (max-width: 400px) {
  /* LeetCode stats: tighter */
  .lc-stat {
    padding: 0.7rem 0.4rem;
  }

  .lc-stat-num {
    font-size: 1.2rem;
  }

  .lc-prog-count {
    width: 58px;
    font-size: 0.68rem;
  }

  /* Hero name on tiny screens */
  .hero-name {
    font-size: clamp(2.4rem, 10vw, 5.2rem);
  }

  /* Section heading */
  .section-title {
    font-size: clamp(1.7rem, 7vw, 3rem);
  }

  /* Quote slide tighter */
  .quote-slide {
    padding: 1.5rem 1.4rem 1.2rem;
  }

  /* Project cards */
  .project-card {
    padding: 1.4rem;
  }

  /* Btn ghost: prevent overflow */
  .btn-ghost {
    padding: 0.65rem 1.4rem;
    font-size: 0.9rem;
  }
}

/* =============================================
   RESPONSIVE — FOOTER MOBILE
   ============================================= */
@media (max-width: 480px) {
  footer {
    padding: 1.5rem 1.2rem 1.5rem;
  }

  .footer-inner {
    gap: 1rem;
  }
}

/* =============================================
   ACCESSIBILITY — FOCUS VISIBLE
   Keyboard users get visible focus rings
   ============================================= */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Remove outline for mouse users who already have hover states */
:focus:not(:focus-visible) {
  outline: none;
}

/* Ensure touch targets meet 44px minimum */
.hamburger {
  min-width: 44px;
  min-height: 44px;
}

.quote-dot {
  min-width: unset;
  min-height: unset;
  display: inline-block;
  padding: 10px; /* invisible touch padding — keeps 44px tap area without inflating the dot */
  margin: -10px; /* collapse the extra space so dots don't spread apart */
  background-clip: content-box; /* background fills only the 8×8 dot, not the padding */
}


/* =============================================
   PERFORMANCE — TARGETED WILL-CHANGE
   Only on elements that actually animate on GPU
   ============================================= */
.loader-ring {
  will-change: transform;
}

.quote-track {
  will-change: transform;
}

.spin-ring {
  will-change: transform;
}