/* ============================================================
   home.css — Homepage-specific styles only.
   Imported exclusively by index.html.
   ============================================================ */

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

/* Subtle radial gradient background glow */
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(
    ellipse at center,
    rgba(220, 38, 38, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 50%;
  height: 70%;
  background: radial-gradient(
    ellipse at center,
    rgba(245, 158, 11, 0.04) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
  opacity: 0;
  animation: heroFadeUp 600ms ease 100ms forwards;
}

.hero__eyebrow-line {
  width: 32px;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}

.hero__name {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--text-primary);
  opacity: 0;
  animation: heroFadeUp 600ms ease 200ms forwards;
}

.hero__name-accent {
  /* Gold gradient on the name */
  background: linear-gradient(135deg, var(--gold-soft) 0%, var(--gold) 50%, var(--crimson-soft) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__title {
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  margin-top: var(--sp-3);
  opacity: 0;
  animation: heroFadeUp 600ms ease 300ms forwards;
}

.hero__title strong {
  color: var(--text-primary);
  font-weight: 500;
}

.hero__description {
  margin-top: var(--sp-6);
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.75;
  opacity: 0;
  animation: heroFadeUp 600ms ease 400ms forwards;
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-top: var(--sp-10);
  opacity: 0;
  animation: heroFadeUp 600ms ease 500ms forwards;
}

.hero__scroll {
  position: absolute;
  bottom: var(--sp-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  opacity: 0;
  animation: heroFadeUp 600ms ease 800ms forwards;
}

.hero__scroll-text {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 1; }
}

/* ── About / Quick bio strip ───────────────────────────────── */
.about-strip {
  padding-block: var(--sp-20);
  border-top: 1px solid var(--border);
}

.about-strip__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
}

.about-strip__label {
  margin-bottom: var(--sp-4);
}

.about-strip__heading {
  font-size: var(--text-3xl);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-5);
}

.about-strip__heading em {
  font-style: normal;
  color: var(--gold);
}

.about-strip__body {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: var(--text-base);
}

.about-strip__body + .about-strip__body {
  margin-top: var(--sp-4);
}

.about-strip__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  transition: border-color var(--t-base);
}

.stat-card:hover {
  border-color: var(--gold-border);
}

.stat-card__value {
  font-size: var(--text-3xl);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--gold);
  line-height: 1;
  margin-bottom: var(--sp-2);
}

.stat-card__label {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .about-strip__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-10);
  }
  .about-strip__stats {
    grid-template-columns: 1fr 1fr;
  }
}

/* ── Featured Projects preview ─────────────────────────────── */
.featured {
  padding-block: var(--sp-20);
  border-top: 1px solid var(--border);
}

.featured__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--sp-10);
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.featured__heading {
  font-size: var(--text-3xl);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.featured__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
}

/* Project card */
.proj-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  transition: border-color var(--t-base), transform var(--t-base),
              background var(--t-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

/* Subtle crimson left-border glow on hover */
.proj-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 0;
  background: linear-gradient(to bottom, var(--crimson), var(--gold));
  transition: height var(--t-slow);
  border-radius: 1px;
}

.proj-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-elevated);
  transform: translateY(-3px);
}

.proj-card:hover::before {
  height: 100%;
}

.proj-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.proj-card__title {
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.25;
}

.proj-card__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.proj-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--sp-4);
  border-top: 1px solid var(--border);
}

.proj-card__link {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  transition: color var(--t-fast), gap var(--t-fast);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.proj-card__link:hover {
  color: var(--gold-soft);
  gap: var(--sp-3);
}

.proj-card__year {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .featured__grid { grid-template-columns: 1fr; }
}

/* ── Disciplines strip ─────────────────────────────────────── */
.disciplines {
  padding-block: var(--sp-20);
  border-top: 1px solid var(--border);
}

.disciplines__heading {
  font-size: var(--text-3xl);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-3);
}

.disciplines__sub {
  color: var(--text-secondary);
  font-size: var(--text-base);
  margin-bottom: var(--sp-10);
  max-width: 480px;
}

.disciplines__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
}

.discipline-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  transition: border-color var(--t-base), background var(--t-base);
}

.discipline-card:hover {
  border-color: var(--crimson-border);
  background: var(--bg-elevated);
}

.discipline-card__icon {
  font-size: var(--text-2xl);
  margin-bottom: var(--sp-4);
}

.discipline-card__name {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--sp-2);
}

.discipline-card__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .disciplines__grid { grid-template-columns: 1fr 1fr; }
}

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

/* ── Hero keyframes ────────────────────────────────────────── */
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}