:root {
  /* ---- Dark theme (default) ---- */
  --bg: #0a0a0f;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-border: rgba(255, 255, 255, 0.08);
  --text: #e8ecf4;
  --text-dim: #8a93ad;
  --accent-1: #4f7cff;
  --accent-2: #1fd1c6;
  --accent-3: #5c8aff;
  --name-grad: #ffffff;
  --blob-opacity: 0.5;
  --blob-blend: screen;
  --spotlight-color: rgba(255, 255, 255, 0.07);
  --grain-opacity: 0.045;

  --radius: 18px;
  --max-width: 720px;
}

:root[data-theme="light"] {
  --bg: #f4f6fb;
  --surface: rgba(20, 27, 45, 0.035);
  --surface-border: rgba(20, 27, 45, 0.09);
  --text: #1a2130;
  --text-dim: #5b6478;
  --accent-1: #3159e6;
  --accent-2: #0d9c90;
  --accent-3: #4a6ef0;
  --name-grad: #1a2130;
  --blob-opacity: 0.28;
  --blob-blend: multiply;
  --spotlight-color: rgba(20, 27, 45, 0.05);
  --grain-opacity: 0.03;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s ease, color 0.3s ease;
}

/* ---------- Animated aurora background ---------- */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  filter: blur(70px);
}

.blob {
  position: absolute;
  width: 45vw;
  height: 45vw;
  border-radius: 50%;
  opacity: var(--blob-opacity);
  mix-blend-mode: var(--blob-blend);
  animation: float 22s ease-in-out infinite;
  transition: opacity 0.4s ease;
}

.blob-1 {
  background: var(--accent-1);
  top: -10%;
  left: -5%;
}
.blob-2 {
  background: var(--accent-2);
  bottom: -15%;
  right: -10%;
  animation-delay: -7s;
}
.blob-3 {
  background: var(--accent-3);
  top: 30%;
  left: 40%;
  animation-delay: -14s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(5%, 10%) scale(1.08); }
  50% { transform: translate(-4%, 5%) scale(0.95); }
  75% { transform: translate(6%, -6%) scale(1.03); }
}

/* ---------- Grain overlay ---------- */
.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: var(--grain-opacity);
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 140px 140px;
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  position: fixed;
  top: 1.1rem;
  right: 1.1rem;
  z-index: 20;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(12px);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.theme-toggle svg {
  grid-area: 1 / 1;
  transition: opacity 0.3s ease, transform 0.4s ease;
}

.icon-sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.6);
}

.icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .icon-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.6);
}

/* ---------- Layout ---------- */
.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 5rem) 1.25rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--surface-border);
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  box-shadow: 0 10px 40px -10px var(--accent-1);
  margin-bottom: 0.75rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--surface-border);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #36e07f;
  box-shadow: 0 0 0 0 rgba(54, 224, 127, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(54, 224, 127, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(54, 224, 127, 0); }
  100% { box-shadow: 0 0 0 0 rgba(54, 224, 127, 0); }
}

.name {
  font-size: clamp(2.2rem, 7vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -1.5px;
  background: linear-gradient(120deg, var(--name-grad) 20%, var(--accent-2) 50%, var(--name-grad) 80%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: sheen 7s ease-in-out infinite;
}

@keyframes sheen {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.title {
  font-size: clamp(1rem, 3vw, 1.25rem);
  font-weight: 500;
  color: var(--accent-2);
}

.location {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  box-shadow: 0 8px 24px -8px var(--accent-1);
}

.btn-primary:hover {
  box-shadow: 0 12px 28px -8px var(--accent-1);
}

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

.btn-ghost:hover {
  background: var(--spotlight-color);
  border-color: var(--accent-2);
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 4vw, 1.75rem);
  backdrop-filter: blur(12px);
  transition: border-color 0.2s ease;
}

/* Cursor-following spotlight highlight (JS sets --mx / --my) */
.card::before,
.stat::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(480px circle at var(--mx, 50%) var(--my, 50%), var(--spotlight-color), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

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

.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.accent {
  color: var(--accent-2);
  font-family: "JetBrains Mono", monospace;
}

.about {
  color: var(--text-dim);
  font-size: 1rem;
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 1.1rem 0.75rem;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.stat:hover {
  transform: translateY(-3px);
  border-color: var(--accent-2);
}

.stat-value {
  display: block;
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ---------- Skills ---------- */
.skills {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skills li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  color: var(--text);
  background: rgba(79, 124, 255, 0.12);
  border: 1px solid rgba(79, 124, 255, 0.25);
  font-family: "JetBrains Mono", monospace;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.skills li svg {
  flex-shrink: 0;
  color: var(--accent-2);
}

.skills li:hover {
  background: rgba(79, 124, 255, 0.25);
  border-color: var(--accent-2);
  transform: translateY(-2px);
}

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  padding-top: 1rem;
}

/* ---------- Scroll reveal ---------- */
/* Elements are visible by default (no-JS / no-IO fallback); JS opts sections
   into the hidden-then-revealed state via .reveal-init, then flips .in-view. */
.reveal-init {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-init.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger the skill chips once their parent card is revealed */
.card.reveal-init .skills li {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  transition-delay: calc(var(--i, 0) * 40ms);
}

.card.reveal-init.in-view .skills li {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Focus states ---------- */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 8px;
}

.theme-toggle:focus-visible {
  outline-offset: 4px;
}

.skills li:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}