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

:root {
  --bg: #000;
  --surface: #080808;
  --border: #1a1a1a;
  --muted: #484848;
  --text: #c8c8c8;
  --accent: #fff;
  --card-size: clamp(260px, 28vw, 390px);
}

body {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

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

/* === PAGE BG === */
.page-bg {
  min-height: 100vh;
  background: #000;
  display: flex;
  flex-direction: column;
}

/* === BACK NAV === */
.back-nav {
  padding: 28px 36px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
  align-self: flex-start;
}
.back-nav:hover { color: var(--accent); }
.back-nav::before { content: '←'; font-size: 0.9rem; }

/* ===================== SPLASH ===================== */
.splash-bg {
  min-height: 100vh;
  background: radial-gradient(ellipse at 50% 20%, #0d0d0d 0%, #000 55%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 72px;
  padding: 40px 20px;
  overflow: hidden;
}

.splash-header { text-align: center; }
.splash-header h1 {
  font-size: clamp(1.4rem, 3.5vw, 2.6rem);
  font-weight: 200;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
}
.splash-header p {
  margin-top: 12px;
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  color: var(--muted);
  text-transform: uppercase;
}

.card-grid {
  display: flex;
  gap: 14px;
  flex-wrap: nowrap;
  justify-content: center;
  transition: transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.card {
  width: var(--card-size);
  height: var(--card-size);
  border: 1px solid var(--border);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  position: relative;
  overflow: hidden;
  transition: border-color 0.4s, transform 0.4s;
  cursor: pointer;
  flex-shrink: 0;
}
.card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.5;
  transition: opacity 0.4s, transform 0.6s;
}
.card:hover .card-bg { opacity: 0.8; transform: scale(1.06); }
.card:hover { border-color: #3a3a3a; transform: translateY(-6px); }

.card-label {
  position: relative;
  z-index: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.card-label span {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  color: var(--muted);
  transition: color 0.3s;
}
.card-label h2 {
  font-size: 0.95rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: var(--text);
  transition: color 0.3s;
}
.card:hover .card-label span,
.card:hover .card-label h2 { color: var(--accent); }

/* Card gradient bgs — replace with background-image: url('...') for real photos */
.card-about  .card-bg { background: linear-gradient(145deg, #1c0800 0%, #2a1000 60%, #0a0a0a 100%); }
.card-resume .card-bg { background: linear-gradient(145deg, #00101c 0%, #051825 60%, #0a0a0a 100%); }
.card-notes  .card-bg { background: linear-gradient(145deg, #001c0e 0%, #051f10 60%, #0a0a0a 100%); }
.card-projects .card-bg { background: linear-gradient(145deg, #0e0020 0%, #160530 60%, #0a0a0a 100%); }

/* ===================== ABOUT ===================== */
.about-container {
  max-width: 740px;
  margin: 0 auto;
  padding: 32px 36px 100px;
  display: flex;
  flex-direction: column;
  gap: 52px;
}

.profile-section {
  display: flex;
  align-items: center;
  gap: 44px;
  flex-wrap: wrap;
}
.profile-img {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
  flex-shrink: 0;
  /* ✏️ Replace src in HTML with your actual photo for best results */
}
.profile-info h1 {
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
  font-weight: 200;
  letter-spacing: 0.12em;
  color: var(--accent);
}
.profile-info .role {
  margin-top: 8px;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}
.social-links {
  display: flex;
  gap: 10px;
  margin-top: 22px;
  flex-wrap: wrap;
}
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border: 1px solid var(--border);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  transition: border-color 0.3s, color 0.3s;
}
.social-link:hover { border-color: #444; color: var(--accent); }

.divider { height: 1px; background: var(--border); }

.bio-section h2 {
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}
.bio-text {
  font-size: 0.92rem;
  line-height: 1.95;
  color: #bbb;
  font-weight: 300;
}
.edit-note {
  font-size: 0.72rem;
  color: #333;
  font-style: italic;
  margin-top: 10px;
}

/* ===================== RESUME ===================== */
.resume-container {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 36px 60px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.resume-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.resume-header h1 {
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
}
.resume-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  padding: 9px 22px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.3s, color 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.btn:hover { border-color: #555; color: var(--accent); }
.btn-primary { border-color: #333; color: var(--text); }
.btn-primary:hover { border-color: var(--accent); }

.resume-wrapper {
  overflow: hidden;
  position: relative;
  width: 100%;
  min-height: 34vh;
  height: 82vh;
}

.resume-frame {
  width: 100%;
  height: calc(100% + 50px);
  margin-top: -50px;
  border: none;
  background: #000;
  display: block;
}

/* ===================== NOTES ===================== */
.notes-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 32px 36px 100px;
  display: flex;
  flex-direction: column;
  gap: 64px;
}
.notes-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.notes-header h1 {
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
}
.discipline-section h2 {
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.flashcard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.flashcard {
  height: 155px;
  perspective: 1000px;
  cursor: pointer;
}
.flashcard-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.flashcard.flipped .flashcard-inner { transform: rotateY(180deg); }

.flashcard-front,
.flashcard-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
  transition: border-color 0.3s;
}
.flashcard:hover .flashcard-front,
.flashcard:hover .flashcard-back { border-color: #2e2e2e; }
.flashcard-front { background: var(--surface); }
.flashcard-back { background: #080808; transform: rotateY(180deg); justify-content: flex-start; overflow: hidden; }

.flashcard-front h3 {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
  text-align: center;
  line-height: 1.5;
}
.flashcard-front .card-hint {
  margin-top: 10px;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: #333;
  text-transform: uppercase;
}

.note-content {
  width: 100%;
  height: 100%;
  background: transparent;
  border: none;
  color: #555;
  font-family: inherit;
  font-size: 0.75rem;
  line-height: 1.7;
  resize: none;
  outline: none;
  cursor: default;
  overflow-y: auto;
}
.note-content[contenteditable="true"] {
  cursor: text;
  color: var(--text);
}
.note-content:empty::before {
  content: attr(data-placeholder);
  color: #2a2a2a;
  font-style: italic;
}

.btn.active { border-color: #444; color: var(--accent); }

/* ===================== PROJECTS ===================== */
.projects-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 36px 100px;
  display: flex;
  flex-direction: column;
  gap: 52px;
  align-items: center;
  text-align: center;
}
.projects-hero h1 {
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 200;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}
.projects-hero p {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  line-height: 1.9;
}
.github-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 56px 64px;
  border: 1px solid var(--border);
  width: 100%;
  transition: border-color 0.35s, transform 0.35s;
}
.github-card:hover { border-color: #3a3a3a; transform: translateY(-5px); }
.github-icon {
  width: 88px;
  height: 88px;
  color: var(--muted);
  animation: github-float 3.5s ease-in-out infinite;
  transition: color 0.4s;
}
.github-card:hover .github-icon {
  color: var(--accent);
  animation-play-state: paused;
}

@keyframes github-float {
  0%   { transform: translateY(0px) rotate(0deg); opacity: 0.45; }
  30%  { transform: translateY(-11px) rotate(-3deg); opacity: 0.75; }
  60%  { transform: translateY(-6px) rotate(2deg); opacity: 0.6; }
  100% { transform: translateY(0px) rotate(0deg); opacity: 0.45; }
}
.github-card span {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.3s;
}
.github-card:hover span { color: var(--accent); }

/* ===================== REPO CARDS ===================== */
.repos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  width: 100%;
}

.repos-loading {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 40px 0;
  text-align: center;
}

.repo-card {
  border: 1px solid var(--border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-decoration: none;
  transition: border-color 0.3s, transform 0.3s;
}
.repo-card:hover { border-color: #3a3a3a; transform: translateY(-3px); }

.repo-name {
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.repo-desc {
  font-size: 0.72rem;
  color: #666;
  line-height: 1.65;
  flex: 1;
}
.repo-meta {
  display: flex;
  gap: 16px;
  margin-top: 4px;
}
.repo-lang, .repo-stars {
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ===================== STATS PAGE ===================== */
.stats-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 40px 36px 100px;
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: center;
  text-align: center;
}

.stats-header h1 {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 200;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
}
.stats-header p {
  margin-top: 12px;
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

.stats-card {
  width: 100%;
  border: 1px solid var(--border);
  padding: 52px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.stats-icon { color: var(--muted); opacity: 0.5; }

.stats-label {
  font-size: 0.72rem;
  color: #555;
  line-height: 1.8;
  letter-spacing: 0.05em;
  max-width: 340px;
}

.stats-btn {
  margin-top: 8px;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  padding: 11px 28px;
}

.stats-meta {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}
.stats-meta-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  gap: 16px;
  flex-wrap: wrap;
}
.stats-meta-item:last-child { border-bottom: none; }
.stats-meta-label {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}
.stats-meta-value {
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  color: #555;
  text-align: right;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px) {
  :root { --card-size: clamp(200px, 42vw, 280px); }
  .card-grid { flex-wrap: wrap; }
}

@media (max-width: 640px) {
  :root { --card-size: clamp(150px, 44vw, 220px); }
  .profile-section { flex-direction: column; text-align: center; align-items: center; }
  .social-links { justify-content: center; }
  .about-container,
  .resume-container,
  .notes-container,
  .projects-container { padding: 24px 20px 80px; }
  .card-grid { gap: 10px; flex-wrap: wrap; transform: none !important; }
  .github-card { padding: 40px 28px; }
  .resume-wrapper { height: 60vh; }
}