/* ==========================================
   Vercel-inspired premium components
   Minimal, sharp, white/black, subtle borders.
   ========================================== */

:root {
  --ink-50: #fafafa;
  --ink-100: #f5f5f5;
  --ink-150: #ededed;
  --ink-200: #e5e5e5;
  --ink-300: #d4d4d4;
  --ink-500: #737373;
  --ink-700: #404040;
  --ink-800: #262626;
  --ink-900: #171717;
  --ink-950: #0a0a0a;
  --ink-1000: #000000;

  --violet-500: #8b5cf6;
  --violet-600: #7c3aed;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

.dark {
  --ink-50: #0a0a0a;
  --ink-100: #171717;
  --ink-150: #1f1f1f;
  --ink-200: #262626;
  --ink-300: #404040;
  --ink-500: #a3a3a3;
  --ink-700: #d4d4d4;
  --ink-800: #e5e5e5;
  --ink-900: #f5f5f5;
  --ink-950: #fafafa;
  --ink-1000: #ffffff;
}

/* ==========================================
   Border — Vercel uses #eaeaea light / #1f1f1f dark
   ========================================== */
.vercel-border {
  border: 1px solid var(--ink-150);
}

.dark .vercel-border {
  border-color: var(--ink-200);
}

.vercel-border-b {
  border-bottom: 1px solid var(--ink-150);
}

.dark .vercel-border-b {
  border-bottom-color: var(--ink-200);
}

/* ==========================================
   Button — black, sharp 8px radius
   ========================================== */
.btn-premium {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem;
  font-family: 'Geist', system-ui, sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 1.25rem;
  letter-spacing: -0.005em;
  color: white;
  background: var(--ink-1000);
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background 200ms var(--ease),
    transform 200ms var(--ease);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
}

.dark .btn-premium {
  background: white;
  color: var(--ink-1000);
}

.btn-premium:hover {
  background: var(--ink-800);
}

.dark .btn-premium:hover {
  background: var(--ink-100);
}

.btn-premium:active {
  transform: scale(0.98);
  transition-duration: 80ms;
}

/* ==========================================
   Outline button — minimal border
   ========================================== */
.btn-outline-premium {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.1rem;
  font-family: 'Geist', system-ui, sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  line-height: 1.25rem;
  letter-spacing: -0.005em;
  color: var(--ink-900);
  background: transparent;
  border: 1px solid var(--ink-200);
  border-radius: 8px;
  cursor: pointer;
  transition: background 200ms var(--ease),
    border-color 200ms var(--ease);
  white-space: nowrap;
  user-select: none;
}

.dark .btn-outline-premium {
  color: var(--ink-900);
  border-color: var(--ink-300);
}

.btn-outline-premium:hover {
  background: var(--ink-100);
  border-color: var(--ink-300);
}

.dark .btn-outline-premium:hover {
  background: var(--ink-150);
}

.btn-outline-premium:active {
  transform: scale(0.98);
  transition-duration: 80ms;
}

/* ==========================================
   Eyebrow — Vercel style (tracking + line)
   ========================================== */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--ink-500);
  text-transform: none;
}

.eyebrow .dot {
  display: inline-block;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 9999px;
  background: var(--violet-500);
}

.eyebrow-with-line {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Geist Mono', ui-monospace, monospace;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--ink-500);
}

.eyebrow-with-line::before {
  content: '';
  display: inline-block;
  width: 1.5rem;
  height: 1px;
  background: var(--ink-300);
}

/* ==========================================
   Text gradient (kept for headlines accent)
   ========================================== */
.text-gradient {
  background-image: linear-gradient(to right, var(--violet-600), var(--ink-900));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.dark .text-gradient {
  background-image: linear-gradient(to right, #a78bfa, white);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.text-gradient-light {
  background-image: linear-gradient(to right, #c4b5fd, white);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ==========================================
   Card — Vercel sharp 8px + 1px border
   ========================================== */
.vercel-card {
  position: relative;
  background: var(--ink-50);
  border: 1px solid var(--ink-150);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 200ms var(--ease),
    background 200ms var(--ease);
}

.dark .vercel-card {
  background: var(--ink-100);
  border-color: var(--ink-200);
}

.vercel-card:hover {
  border-color: var(--ink-300);
}

.dark .vercel-card:hover {
  border-color: var(--ink-300);
}

.vercel-card.interactive:hover {
  background: var(--ink-100);
}

/* ==========================================
   Page Title — Grid mesh + soft orbs
   Reusable header pattern for inner pages.
   Apply the class to a relative/overflow-hidden
   section. The grid + orb are painted via
   pseudo-elements (no extra markup).
   ========================================== */
.page-title {
  position: relative;
  overflow: hidden;
  background: linear-gradient(to bottom, #fafafa, #ffffff);
}
.dark .page-title {
  background: linear-gradient(to bottom, #020617, #0f172a);
}

.page-title::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, currentColor 1px, transparent 1px),
    linear-gradient(to bottom, currentColor 1px, transparent 1px);
  background-size: 96px 96px;
  color: #e5e7eb;
  opacity: 0.55;
  mask-image: linear-gradient(
    to bottom,
    black 0%,
    black 55%,
    transparent 95%
  );
  -webkit-mask-image: linear-gradient(
    to bottom,
    black 0%,
    black 55%,
    transparent 95%
  );
}
.dark .page-title::before {
  color: #1e293b;
  opacity: 0.7;
}

.page-title::after {
  content: "";
  position: absolute;
  top: -10rem;
  right: -10rem;
  width: 36rem;
  height: 36rem;
  pointer-events: none;
  background: radial-gradient(
    circle at center,
    rgba(167, 139, 250, 0.18),
    transparent 70%
  );
  filter: blur(48px);
}
.dark .page-title::after {
  background: radial-gradient(
    circle at center,
    rgba(124, 58, 237, 0.22),
    transparent 70%
  );
}

/* Decorative panel — used in place of a photo
   (e.g. About > Story). Same grid mesh language
   as page-title, framed in a card. */
.panel-grid {
  position: relative;
  overflow: hidden;
  border-radius: 1.5rem;
  border: 1px solid var(--ink-150);
  background: var(--ink-50);
  aspect-ratio: 1 / 1;
}
.dark .panel-grid {
  background: var(--ink-100);
  border-color: var(--ink-200);
}

.panel-grid::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, currentColor 1px, transparent 1px),
    linear-gradient(to bottom, currentColor 1px, transparent 1px);
  background-size: 48px 48px;
  color: #cbd5e1;
  opacity: 0.7;
  mask-image: radial-gradient(
    ellipse at center,
    black 0%,
    black 50%,
    transparent 95%
  );
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    black 0%,
    black 50%,
    transparent 95%
  );
}
.dark .panel-grid::before {
  color: #334155;
  opacity: 0.6;
}

.panel-grid::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60%;
  height: 60%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  background: radial-gradient(
    circle at center,
    rgba(59, 130, 246, 0.22),
    transparent 70%
  );
  filter: blur(40px);
}
.dark .panel-grid::after {
  background: radial-gradient(
    circle at center,
    rgba(96, 165, 250, 0.18),
    transparent 70%
  );
}

.panel-grid-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
  z-index: 1;
}

.dark .vercel-card.interactive:hover {
  background: var(--ink-150);
}

/* ==========================================
   Stat — minimal, no gradient
   ========================================== */
.stat-glow {
  position: relative;
  padding: 1.5rem 1.25rem;
  text-align: left;
  background: var(--ink-50);
  border: 1px solid var(--ink-150);
  border-radius: 8px;
  transition: border-color 200ms var(--ease),
    background 200ms var(--ease);
}

.dark .stat-glow {
  background: var(--ink-100);
  border-color: var(--ink-200);
}

.stat-glow:hover {
  border-color: var(--ink-300);
  background: var(--ink-100);
}

.dark .stat-glow:hover {
  border-color: var(--ink-300);
  background: var(--ink-150);
}

.stat-glow .counter-value,
.stat-glow > div:first-child {
  font-weight: 600;
  font-size: 1.875rem;
  line-height: 2.25rem;
  letter-spacing: -0.025em;
  color: var(--ink-1000);
}

.dark .stat-glow .counter-value,
.dark .stat-glow > div:first-child {
  color: white;
}

/* ==========================================
   Heading display
   ========================================== */
.heading-display {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--ink-1000);
}

.dark .heading-display {
  color: white;
}

/* ==========================================
   Decorative divider
   ========================================== */
.divider-luxe {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin: 3rem 0;
}

.divider-luxe::before,
.divider-luxe::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--ink-200);
  max-width: 8rem;
}

.divider-luxe .ornament {
  width: 0.375rem;
  height: 0.375rem;
  background: var(--ink-300);
  transform: rotate(45deg);
}

/* ==========================================
   Subtle hover lift (no shadows)
   ========================================== */
.hover-lift {
  transition: transform 200ms var(--ease);
}

.hover-lift:hover {
  transform: translateY(-1px);
}

.hover-arrow {
  display: inline-block;
  transition: transform 200ms var(--ease);
}

.group:hover .hover-arrow,
a:hover .hover-arrow {
  transform: translateX(2px);
}

/* ==========================================
   Card group link (icon + content)
   ========================================== */
.link-card {
  display: block;
  border: 1px solid var(--ink-150);
  border-radius: 8px;
  padding: 1.5rem;
  background: var(--ink-50);
  transition: border-color 200ms var(--ease),
    background 200ms var(--ease);
}

.dark .link-card {
  background: var(--ink-100);
  border-color: var(--ink-200);
}

.link-card:hover {
  border-color: var(--ink-300);
  background: var(--ink-100);
}

.dark .link-card:hover {
  border-color: var(--ink-300);
  background: var(--ink-150);
}

/* ==========================================
   Section heading block
   ========================================== */
.section-heading {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.1;
  color: var(--ink-1000);
}

.dark .section-heading {
  color: white;
}

.section-sub {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink-500);
}

.dark .section-sub {
  color: var(--ink-500);
}

/* ==========================================
   Mobile / reduced motion
   ========================================== */
@media (hover: none) {
  .hover-lift:hover,
  .stat-glow:hover {
    transform: none;
  }
  .btn-premium:active,
  .btn-outline-premium:active {
    transform: scale(0.98);
  }
}

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

/* ==========================================
   Editorial Hero utilities
   ========================================== */

/* Grid fade up — staggered entrance for hero */
.grid-fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: grid-fade-up 0.8s var(--ease-out, cubic-bezier(0.16, 1, 0.3, 1)) forwards;
  animation-delay: var(--stagger, 0ms);
}

@keyframes grid-fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Marquee ticker */
.animate-marquee {
  animation: marquee 40s linear infinite;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .animate-marquee {
    animation: none;
  }
}