/* ============================================================
   BHAGYA KARUNANAYAKE — Portfolio CSS
   Pure Vanilla CSS · Dark Theme · Glassmorphism
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Variables ─────────────────────────────────────────── */
:root {
  --accent:       #09D0A0;
  --accent-dark:  #1A1A8A;
  --accent-glow:  rgba(9, 208, 160, 0.4);
  --bg:           #0a0a0a;
  --bg-alt:       #0d1117;
  --surface:      rgba(17, 24, 39, 0.70);
  --border:       #1f2937;
  --border-a:     rgba(9, 208, 160, 0.30);
  --text:         #ffffff;
  --text-muted:   #88C0D0;
  --text-dim:     #6b7280;
  --font-h:       'Space Grotesk', sans-serif;
  --font-b:       'Inter', sans-serif;
  --font-m:       'JetBrains Mono', monospace;
  --r:            12px;
  --r-lg:         20px;
  --tr:           all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-b);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

::-webkit-scrollbar       { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ── Utility ─────────────────────────────────────────── */
.glass {
  background: var(--surface);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-lg {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-sm {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-accent  { color: var(--accent); }
.text-muted   { color: var(--text-muted); }
.text-dim     { color: var(--text-dim); }
.font-mono    { font-family: var(--font-m); }
.font-heading { font-family: var(--font-h); }

/* ── Animations ───────────────────────────────────────── */
@keyframes glitch {
  0%,100% { transform: translate(0); text-shadow: none; }
  2%  { transform: translate(-3px,2px);  text-shadow:  2px 0 #09D0A0, -2px 0 #1A1A8A; }
  4%  { transform: translate(3px,-2px);  text-shadow: -2px 0 #09D0A0,  2px 0 #1A1A8A; }
  6%  { transform: translate(0);         text-shadow: none; }
  52% { transform: translate(-2px,1px);  text-shadow: 1px 0 #09D0A0; }
  54% { transform: translate(0);         text-shadow: none; }
}

@keyframes float-orb {
  0%,100% { transform: translate(0,0) scale(1); }
  25%     { transform: translate(20px,-30px) scale(1.05); }
  50%     { transform: translate(-10px,-20px) scale(0.95); }
  75%     { transform: translate(15px,10px) scale(1.02); }
}

@keyframes spin-slow  { to { transform: rotate(360deg); } }
@keyframes blink      { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes ring-pulse {
  0%,100% { box-shadow: 0 0 0 4px rgba(9,208,160,0.3), 0 0 30px rgba(9,208,160,0.2); }
  50%     { box-shadow: 0 0 0 8px rgba(9,208,160,0.1), 0 0 60px rgba(9,208,160,0.4); }
}
@keyframes bounce-down {
  0%,100% { transform: translateY(0); opacity: 1; }
  50%     { transform: translateY(10px); opacity: 0.5; }
}
@keyframes pulse-dot {
  0%,100% { opacity: 1; transform: scale(1); }
  50%     { opacity: 0.5; transform: scale(0.7); }
}
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Scroll-in animation classes ─────────────────────── */
.anim-up, .anim-left, .anim-right, .anim-scale, .anim-fade {
  transition: opacity 0.65s ease, transform 0.65s ease;
  will-change: opacity, transform;
}
.anim-up    { opacity: 0; transform: translateY(35px); }
.anim-left  { opacity: 0; transform: translateX(-45px); }
.anim-right { opacity: 0; transform: translateX(45px); }
.anim-scale { opacity: 0; transform: scale(0.88); }
.anim-fade  { opacity: 0; }

.anim-up.visible,
.anim-left.visible,
.anim-right.visible,
.anim-scale.visible,
.anim-fade.visible { opacity: 1; transform: none; }

/* ── Section scaffold ─────────────────────────────────── */
section { position: relative; padding: 6rem 0; }

.section-label {
  display: block;
  text-align: center;
  color: var(--accent);
  font-family: var(--font-m);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-h);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text);
  text-align: center;
  line-height: 1.15;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.97rem;
  max-width: 38rem;
  margin: 1rem auto 0;
  line-height: 1.7;
}

.section-head { margin-bottom: 4rem; }

/* Section underline accent */
.section-title span.ul {
  position: relative;
  display: inline-block;
}
.section-title span.ul::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 65%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
}

/* ── NAVBAR ─────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: var(--tr);
}

#navbar.scrolled {
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(31,41,55,0.6);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem; height: 2.6rem;
  border-radius: var(--r);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  font-family: var(--font-h);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  box-shadow: 0 0 18px rgba(9,208,160,0.3);
  transition: var(--tr);
  flex-shrink: 0;
  cursor: pointer;
}
.nav-logo:hover {
  box-shadow: 0 0 28px rgba(9,208,160,0.6), 0 0 50px rgba(9,208,160,0.2);
  transform: scale(1.07);
}

/* Desktop links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  position: relative;
  padding: 0.45rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--r);
  transition: color 0.2s ease;
  white-space: nowrap;
}
.nav-link:hover       { color: var(--text); }
.nav-link.active      { color: var(--accent); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 18px; height: 2px;
  background: var(--accent);
  border-radius: 1px;
  box-shadow: 0 0 8px var(--accent-glow);
}

.nav-hire {
  margin-left: 1rem;
  padding: 0.45rem 1.1rem;
  background: var(--accent);
  color: #0a0a0a;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-h);
  border-radius: var(--r);
  transition: var(--tr);
  box-shadow: 0 0 16px rgba(9,208,160,0.3);
}
.nav-hire:hover {
  background: #07b089;
  box-shadow: 0 0 26px rgba(9,208,160,0.55);
  transform: scale(1.04);
}

/* Hamburger */
.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.2rem; height: 2.2rem;
  color: var(--text-muted);
  transition: color 0.2s;
  font-size: 1.3rem;
}
.hamburger:hover { color: var(--text); }

/* Mobile overlay */
#mobile-overlay {
  position: fixed; inset: 0;
  z-index: 110;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
}
#mobile-overlay.open { opacity: 1; pointer-events: all; }

/* Mobile drawer */
#mobile-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  z-index: 120;
  width: min(17rem, 85vw);
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(20px);
  border-left: 1px solid var(--border);
  box-shadow: -8px 0 40px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}
#mobile-drawer.open { transform: translateX(0); }

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.drawer-title { font-family: var(--font-h); font-size: 1.1rem; font-weight: 700; color: var(--accent); }
.drawer-close {
  color: var(--text-muted);
  font-size: 1.2rem;
  padding: 0.25rem;
  transition: color 0.2s;
}
.drawer-close:hover { color: var(--text); }

.drawer-links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.5rem 1rem;
  flex: 1;
}
.drawer-link {
  padding: 0.75rem 1rem;
  border-radius: var(--r);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--tr);
  text-align: left;
}
.drawer-link:hover  { background: rgba(255,255,255,0.05); color: var(--text); }
.drawer-link.active {
  background: rgba(9,208,160,0.08);
  color: var(--accent);
  border: 1px solid rgba(9,208,160,0.25);
}
.drawer-hire {
  display: block;
  text-align: center;
  margin: 0.75rem 0 0;
  padding: 0.75rem 1rem;
  border-radius: var(--r);
  background: var(--accent);
  color: #0a0a0a;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-h);
  transition: var(--tr);
}
.drawer-hire:hover { background: #07b089; }

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

#particles-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

.hero-gradient {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.4) 0%, transparent 50%, var(--bg) 100%);
  z-index: 1; pointer-events: none;
}

.hero-orbs {
  position: absolute; inset: 0;
  overflow: hidden; pointer-events: none; z-index: 1;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}
.orb-1 {
  width: 26rem; height: 26rem;
  background: radial-gradient(circle, #09D0A0 0%, transparent 70%);
  opacity: 0.18;
  top: 8%; left: 10%;
  animation: float-orb 8s ease-in-out infinite;
}
.orb-2 {
  width: 22rem; height: 22rem;
  background: radial-gradient(circle, #1A1A8A 0%, transparent 70%);
  opacity: 0.14;
  top: 15%; right: 8%;
  animation: float-orb 10s ease-in-out 2s infinite reverse;
}
.orb-3 {
  width: 18rem; height: 18rem;
  background: radial-gradient(circle, #09D0A0 0%, transparent 70%);
  opacity: 0.09;
  bottom: 18%; right: 18%;
  animation: float-orb 12s ease-in-out 4s infinite;
}
.hero-grid {
  position: absolute; inset: 0;
  opacity: 0.04;
  background-image:
    linear-gradient(#09D0A0 1px, transparent 1px),
    linear-gradient(90deg, #09D0A0 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none; z-index: 1;
}

.hero-content {
  position: relative; z-index: 2;
  text-align: center;
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  animation: fadeSlideUp 0.8s ease 0.2s both;
}

/* Available badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  border-radius: 9999px;
  background: rgba(9,208,160,0.08);
  border: 1px solid rgba(9,208,160,0.3);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 2rem;
}
.pulse-dot {
  width: 0.5rem; height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}

/* Name */
.hero-name {
  font-family: var(--font-h);
  font-size: clamp(2.5rem, 9vw, 6rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  animation: glitch 4s infinite;
}
.hero-name .name-outline {
  -webkit-text-stroke: 2px var(--accent);
  color: transparent;
  text-shadow: 0 0 30px rgba(9,208,160,0.4);
}

/* Typewriter */
.hero-typewriter {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  font-size: clamp(1.1rem, 3vw, 1.7rem);
  font-weight: 500;
  color: var(--text-muted);
  min-height: 2.5rem;
  margin-bottom: 2rem;
}
.typewriter-cursor {
  display: inline-block;
  width: 3px; height: 1.2em;
  background: var(--accent);
  vertical-align: middle;
  border-radius: 1px;
  animation: blink 1s step-end infinite;
}

/* Description */
.hero-desc {
  max-width: 40rem;
  margin: 0 auto 2.5rem;
  color: #9ca3af;
  font-size: 1rem;
  line-height: 1.8;
}
.hero-desc .hl { color: var(--accent); font-weight: 500; }

/* CTA */
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 2rem;
  background: var(--accent);
  color: #0a0a0a;
  font-family: var(--font-h);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--r);
  transition: var(--tr);
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 0 32px rgba(9,208,160,0.55);
}
.btn-primary .arrow { transition: transform 0.3s ease; }
.btn-primary:hover .arrow { transform: translateX(5px); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 2rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-h);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--r);
  transition: var(--tr);
  cursor: pointer;
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  border-color: rgba(9,208,160,0.55);
  box-shadow: 0 0 25px rgba(9,208,160,0.15);
  transform: scale(1.04);
}

/* Tech pills */
.hero-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}
.pill {
  padding: 0.35rem 0.8rem;
  border-radius: 9999px;
  font-family: var(--font-m);
  font-size: 0.72rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s;
  background: none; border: none;
}
.scroll-indicator:hover { color: var(--accent); }
.scroll-label {
  font-size: 0.65rem;
  font-family: var(--font-m);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.scroll-chevron { animation: bounce-down 1.5s ease-in-out infinite; font-size: 1.2rem; }

/* ── ABOUT ──────────────────────────────────────────────── */
#about { background: var(--bg); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: center;
}

/* Profile photo */
.profile-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.profile-ring-wrap {
  position: relative;
  width: fit-content;
}
.profile-ring-spin {
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  padding: 3px;
  background: conic-gradient(from 0deg, var(--accent), var(--accent-dark), var(--accent));
  animation: spin-slow 8s linear infinite;
  opacity: 0.65;
}
.profile-img-wrap {
  position: relative;
  width: 13rem; height: 13rem;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--bg);
  animation: ring-pulse 3s ease-in-out infinite;
}
.profile-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.profile-fallback {
  display: none;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  align-items: center;
  justify-content: center;
  font-family: var(--font-h);
  font-size: 3rem;
  font-weight: 700;
  color: #fff;
}

/* Social icons */
.social-icons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}
.social-icon {
  width: 2.4rem; height: 2.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r);
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1rem;
  transition: var(--tr);
  cursor: pointer;
}
.social-icon:hover { transform: translateY(-3px) scale(1.1); }

/* Quick contact */
.quick-contact { display: flex; flex-direction: column; gap: 0.6rem; width: 100%; max-width: 17rem; }
.contact-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.contact-row .icon { color: var(--accent); flex-shrink: 0; font-size: 0.85rem; }
.contact-row span  { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* About bio side */
.about-bio { display: flex; flex-direction: column; gap: 1.25rem; }

.about-bio h3 {
  font-family: var(--font-h);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
}
.about-bio .university {
  font-family: var(--font-m);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}
.about-bio p {
  color: #d1d5db;
  line-height: 1.8;
  font-size: 0.97rem;
}

/* Interest tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tag {
  padding: 0.4rem 0.8rem;
  font-size: 0.83rem;
  font-weight: 500;
  border-radius: var(--r);
  background: rgba(9,208,160,0.08);
  color: var(--accent);
  border: 1px solid rgba(9,208,160,0.2);
}

/* Fun fact */
.fun-fact {
  border-radius: var(--r);
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--accent);
  background: var(--surface);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.fun-fact-label {
  font-family: var(--font-m);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.3rem;
}
.fun-fact p { font-style: italic; color: var(--text-muted); font-size: 0.9rem; }

/* Stat cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}
.stat-card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1rem 0.5rem;
  text-align: center;
  transition: var(--tr);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(9,208,160,0.15);
  border-color: rgba(9,208,160,0.4);
}
.stat-icon  { font-size: 1.4rem; margin-bottom: 0.3rem; }
.stat-value { font-family: var(--font-h); font-size: 1.3rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.7rem; color: var(--text-muted); margin-top: 0.15rem; }

/* ── PROJECTS ────────────────────────────────────────────── */
#projects {
  background: linear-gradient(180deg, var(--bg) 0%, rgba(9,21,25,0.15) 50%, var(--bg) 100%);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.project-card {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  min-height: 17rem;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transform-style: preserve-3d;
}
.project-card:hover {
  transform: translateY(-8px) rotateX(-2deg) rotateY(2deg);
}

.project-top-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
}
.project-hover-glow {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.project-card:hover .project-hover-glow { opacity: 1; }

.project-body { padding: 1.5rem; display: flex; flex-direction: column; flex: 1; }

.project-icon-wrap {
  width: 3rem; height: 3rem;
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.project-title {
  font-family: var(--font-h);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  transition: color 0.2s;
  margin-bottom: 0.2rem;
}
.project-card:hover .project-title { color: var(--accent); }

.project-subtitle {
  font-family: var(--font-m);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.project-desc {
  font-size: 0.85rem;
  color: #9ca3af;
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}
.tech-badge {
  padding: 0.3rem 0.65rem;
  font-family: var(--font-m);
  font-size: 0.68rem;
  border-radius: 6px;
}

.project-links { display: flex; align-items: center; gap: 0.6rem; margin-top: auto; }

.project-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--r);
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--tr);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  backdrop-filter: blur(8px);
}
.project-btn:hover { border-color: rgba(9,208,160,0.5); color: var(--text); }

.project-btn-demo {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--r);
  font-size: 0.8rem;
  font-weight: 500;
  transition: var(--tr);
}
.project-btn-demo:hover { filter: brightness(1.15); }

.projects-footer { text-align: center; margin-top: 3rem; }
.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.9rem 2rem;
  border: 1px solid rgba(9,208,160,0.5);
  color: var(--accent);
  font-family: var(--font-h);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--r);
  background: rgba(9,208,160,0.05);
  backdrop-filter: blur(8px);
  transition: var(--tr);
}
.btn-github:hover {
  background: rgba(9,208,160,0.12);
  box-shadow: 0 0 28px rgba(9,208,160,0.3);
  transform: scale(1.04);
}

/* ── COMPETITION ─────────────────────────────────────────── */
#competition {
  background: var(--bg);
}
#competition .bg-accent {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 33%;
  background: linear-gradient(to right, rgba(26,26,138,0.05), transparent);
  pointer-events: none;
}

.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* Vertical center line */
.timeline::before {
  content: '';
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 1px;
  transform: translateX(-50%);
  background: linear-gradient(to bottom, var(--accent), var(--accent-dark) 60%, transparent);
  opacity: 0.5;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 3.5rem 1fr;
  align-items: start;
  gap: 0;
}

.timeline-item:nth-child(odd)  .timeline-card { grid-column: 1; padding-right: 2rem; }
.timeline-item:nth-child(odd)  .timeline-dot  { grid-column: 2; }
.timeline-item:nth-child(odd)  .timeline-spacer { grid-column: 3; }

.timeline-item:nth-child(even) .timeline-spacer { grid-column: 1; order: -1; }
.timeline-item:nth-child(even) .timeline-dot    { grid-column: 2; }
.timeline-item:nth-child(even) .timeline-card   { grid-column: 3; padding-left: 2rem; }

.timeline-dot {
  display: flex;
  justify-content: center;
  padding-top: 1.2rem;
  position: relative;
  z-index: 1;
}
.dot-icon {
  width: 3rem; height: 3rem;
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border: 2px solid;
  flex-shrink: 0;
}

.timeline-card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 1.25rem;
  transition: var(--tr);
}
.timeline-card:hover {
  border-color: rgba(9,208,160,0.3);
  box-shadow: 0 15px 40px rgba(9,208,160,0.1);
  transform: scale(1.02);
}

.timeline-spacer { min-height: 1px; }

.comp-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 0.5rem; margin-bottom: 0.5rem; }
.comp-title  { font-family: var(--font-h); font-weight: 700; font-size: 1rem; color: var(--text); }
.comp-org    { font-family: var(--font-m); font-size: 0.75rem; margin-top: 0.15rem; }
.comp-year   {
  flex-shrink: 0;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 500;
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.comp-desc  { font-size: 0.84rem; color: #9ca3af; line-height: 1.65; }
.comp-link  {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.75rem;
  font-size: 0.82rem;
  font-weight: 500;
  transition: filter 0.2s;
}
.comp-link:hover { filter: brightness(1.2); }

.timeline-footer { text-align: center; margin-top: 1.5rem; }
.timeline-placeholder {
  display: inline-block;
  padding: 0.85rem 1.5rem;
  border: 1px dashed var(--border);
  border-radius: var(--r);
  font-family: var(--font-m);
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--surface);
}

/* ── QUALIFICATIONS ──────────────────────────────────────── */
#qualifications {
  background: linear-gradient(180deg, var(--bg) 0%, rgba(9,21,25,0.1) 50%, var(--bg) 100%);
}

.qual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.qual-col-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.qual-col-icon {
  width: 2.5rem; height: 2.5rem;
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.qual-col-head h3 {
  font-family: var(--font-h);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}

/* Education timeline */
.edu-timeline {
  position: relative;
  padding-left: 1.5rem;
  border-left: 1px solid rgba(9,208,160,0.3);
}
.edu-item { position: relative; }
.edu-dot {
  position: absolute;
  left: -1.75rem; top: 0.35rem;
  width: 1rem; height: 1rem;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 10px rgba(9,208,160,0.6);
}
.edu-card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.1rem;
  transition: var(--tr);
}
.edu-card:hover {
  transform: translateX(4px);
  box-shadow: 0 10px 30px rgba(9,208,160,0.12);
  border-color: rgba(9,208,160,0.3);
}
.edu-period {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  font-family: var(--font-m);
  font-size: 0.7rem;
  color: var(--accent);
  background: rgba(9,208,160,0.08);
  border: 1px solid rgba(9,208,160,0.2);
  margin-bottom: 0.6rem;
}
.edu-degree {
  font-family: var(--font-h);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.25rem;
}
.edu-institution { font-size: 0.85rem; color: var(--accent); font-weight: 500; margin-bottom: 0.5rem; }
.edu-desc { font-size: 0.82rem; color: #9ca3af; line-height: 1.65; }
.edu-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.edu-link:hover { color: var(--accent); }

/* Certifications timeline */
.cert-timeline {
  position: relative;
  padding-left: 1.5rem;
  border-left: 1px solid rgba(26,26,138,0.5);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.cert-item { position: relative; }
.cert-dot {
  position: absolute;
  left: -1.65rem; top: 0.75rem;
  width: 0.75rem; height: 0.75rem;
  border-radius: 50%;
  border: 2px solid var(--bg);
}
.cert-card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--tr);
}
.cert-card:hover { transform: translateX(4px); border-color: rgba(26,26,138,0.5); }
.cert-emoji  { font-size: 1.1rem; flex-shrink: 0; }
.cert-title  { font-size: 0.84rem; font-weight: 500; color: var(--text); line-height: 1.3; }
.cert-meta   { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.2rem; }
.cert-issuer { font-family: var(--font-m); font-size: 0.72rem; font-weight: 500; }
.cert-year   { font-size: 0.7rem; color: var(--text-dim); }

/* Cert placeholder */
.cert-placeholder {
  position: relative;
  margin-top: 0.5rem;
}
.cert-placeholder::before {
  content: '';
  position: absolute;
  left: -1.65rem; top: 0.75rem;
  width: 0.75rem; height: 0.75rem;
  border-radius: 50%;
  border: 2px dashed var(--border);
}
.cert-placeholder-card {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--r);
  padding: 0.85rem 1rem;
  font-family: var(--font-m);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── SKILLS ──────────────────────────────────────────────── */
#skills {
  background: linear-gradient(135deg, var(--bg) 0%, rgba(9,21,25,0.1) 100%);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

.skill-cat {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 1.25rem;
  transition: var(--tr);
}
.skill-cat:hover {
  transform: translateY(-4px);
}

.skill-cat-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.skill-cat-icon {
  width: 2.4rem; height: 2.4rem;
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.skill-cat-name {
  font-family: var(--font-h);
  font-size: 0.85rem;
  font-weight: 600;
}

.skill-badges { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.skill-badge {
  padding: 0.35rem 0.7rem;
  border-radius: 8px;
  font-size: 0.72rem;
  font-weight: 500;
  cursor: default;
  transition: var(--tr);
}
.skill-badge:hover {
  transform: translateY(-2px);
  filter: brightness(1.15);
}

/* ── CONTACT ─────────────────────────────────────────────── */
#contact { background: var(--bg); }
#contact .contact-glow {
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 24rem; height: 24rem;
  border-radius: 50%;
  background: rgba(9,208,160,0.05);
  filter: blur(60px);
  pointer-events: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 2.5rem;
  align-items: start;
}

/* Info side */
.contact-info { display: flex; flex-direction: column; gap: 0.75rem; }

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1rem;
  transition: var(--tr);
  text-decoration: none;
  color: inherit;
}
.contact-card:hover {
  border-color: rgba(9,208,160,0.3);
  transform: translateX(6px);
}
.contact-card-icon {
  width: 2.6rem; height: 2.6rem;
  border-radius: var(--r);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.contact-card:hover .contact-card-icon { transform: scale(1.1); }
.contact-card-label { font-family: var(--font-m); font-size: 0.7rem; color: var(--text-muted); margin-bottom: 0.2rem; }
.contact-card-value { font-size: 0.9rem; font-weight: 500; color: var(--text); }

.find-me { margin-top: 1rem; }
.find-me-label { font-family: var(--font-m); font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 0.65rem; }
.find-me-icons { display: flex; gap: 0.6rem; flex-wrap: wrap; }

/* Contact form */
.contact-form-wrap {
  background: var(--surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 2rem;
}
.contact-form-wrap h3 {
  font-family: var(--font-h);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
}

#contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.form-group label {
  display: block;
  font-family: var(--font-m);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.form-input {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--r);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-b);
  font-size: 0.9rem;
  transition: var(--tr);
}
.form-input::placeholder { color: var(--text-dim); }
.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(9,208,160,0.12), 0 0 20px rgba(9,208,160,0.08);
}
textarea.form-input { resize: none; }

.submit-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1rem;
  border-radius: var(--r);
  background: var(--accent);
  color: #0a0a0a;
  font-family: var(--font-h);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--tr);
}
.submit-btn:hover:not(:disabled) {
  box-shadow: 0 0 32px rgba(9,208,160,0.45);
  transform: scale(1.02);
}
.submit-btn:disabled { opacity: 0.7; cursor: not-allowed; }

.btn-label { display: flex; align-items: center; gap: 0.6rem; }
.btn-spinner {
  display: none;
  align-items: center;
  gap: 0.6rem;
}
.spinner {
  width: 1rem; height: 1rem;
  border: 2px solid rgba(10,10,10,0.3);
  border-top-color: #0a0a0a;
  border-radius: 50%;
  animation: spin-slow 0.7s linear infinite;
}

/* Form success state */
#form-success {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 3rem 1rem;
  text-align: center;
}
.success-icon {
  width: 4rem; height: 4rem;
  border-radius: 50%;
  background: rgba(9,208,160,0.12);
  border: 1px solid rgba(9,208,160,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}
#form-success h4 {
  font-family: var(--font-h);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}
#form-success p { font-size: 0.9rem; color: var(--text-muted); }

/* ── FOOTER ──────────────────────────────────────────────── */
footer {
  position: relative;
  border-top: 1px solid rgba(31,41,55,0.6);
  padding: 3rem 0;
  overflow: hidden;
}
footer .footer-glow {
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(9,208,160,0.4), transparent);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-logo {
  width: 2.8rem; height: 2.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r);
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  font-family: var(--font-h);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  box-shadow: 0 0 18px rgba(9,208,160,0.3);
  cursor: pointer;
  transition: var(--tr);
}
.footer-logo:hover { box-shadow: 0 0 28px rgba(9,208,160,0.6); transform: scale(1.07); }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1.2rem;
}
.footer-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.footer-link:hover { color: var(--accent); }

.footer-socials { display: flex; gap: 0.75rem; }
.footer-social {
  width: 2.2rem; height: 2.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--tr);
}
.footer-social:hover {
  color: var(--accent);
  border-color: rgba(9,208,160,0.4);
  transform: translateY(-2px);
}

.footer-divider {
  width: 100%;
  max-width: 20rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.footer-copy { text-align: center; }
.footer-copy p { font-size: 0.82rem; color: var(--text-dim); }
.footer-copy .name-hl { color: var(--accent); font-weight: 500; }
.footer-copy .built {
  font-family: var(--font-m);
  font-size: 0.7rem;
  color: #374151;
  margin-top: 0.25rem;
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid   { grid-template-columns: repeat(2, 1fr); }
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  section { padding: 4rem 0; }

  .nav-links { display: none; }
  .hamburger { display: flex; }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .profile-img-wrap { width: 10rem; height: 10rem; }

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

  /* Competition — mobile linear timeline */
  .timeline::before { left: 1.5rem; }
  .timeline-item {
    grid-template-columns: 3.5rem 1fr;
    grid-template-rows: auto;
  }
  .timeline-item .timeline-dot    { grid-column: 1; grid-row: 1; }
  .timeline-item .timeline-card   { grid-column: 2; grid-row: 1; padding: 0 0 0 1rem !important; }
  .timeline-item .timeline-spacer { display: none; }
  .timeline-item:nth-child(even) .timeline-spacer { display: none; }
  .timeline-item:nth-child(even) .timeline-card { grid-column: 2; order: 0; }

  /* Qualifications */
  .qual-grid { grid-template-columns: 1fr; gap: 2.5rem; }

  /* Skills */
  .skills-grid { grid-template-columns: 1fr; }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; }

  /* Hero */
  .hero-name { font-size: clamp(2.4rem, 12vw, 4rem); }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-cta   { flex-direction: column; width: 100%; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
}