/* ── Body ── */
body {
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--f-body);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Hide native cursor on pointer devices */
@media (pointer: fine) {
  *, *::before, *::after { cursor: none !important; }
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ── Custom cursor system: dot + ring + 4-dot trail ── */
.cursor,
.cursor-ring,
.cursor-trail {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  will-change: transform, opacity;
}

/* Inner dot — exact pointer position */
.cursor {
  width: 6px;
  height: 6px;
  background: var(--silver-1);
  border-radius: 50%;
  box-shadow:
    0 0 6px rgba(245, 245, 247, 0.7),
    0 0 14px rgba(245, 245, 247, 0.35);
  mix-blend-mode: difference;
}

/* Outer ring — silver, follows with subtle lag, scales on interactives */
.cursor-ring {
  width: 32px;
  height: 32px;
  border: 1.2px solid var(--silver-2);
  border-radius: 50%;
  background: transparent;
  transition: transform 0.35s var(--ease-expo), border-color 0.3s ease;
  box-shadow:
    inset 0 0 6px rgba(216, 216, 221, 0.18),
    0 0 12px rgba(216, 216, 221, 0.1);
}

.cursor-ring.is-hover {
  border-color: var(--silver-1);
  box-shadow:
    inset 0 0 8px rgba(245, 245, 247, 0.3),
    0 0 22px rgba(245, 245, 247, 0.25);
}

/* Trail — micro silver sparkles */
.cursor-trail {
  width: 3px;
  height: 3px;
  background: var(--silver-2);
  border-radius: 50%;
  box-shadow: 0 0 4px rgba(216, 216, 221, 0.6);
  mix-blend-mode: difference;
}

@media (pointer: coarse) {
  .cursor, .cursor-ring, .cursor-trail { display: none; }
}

/* ── Grain overlay ── */
.grain {
  position: fixed;
  inset: -30%;
  width: 160%;
  height: 160%;
  pointer-events: none;
  z-index: 800;
  opacity: 0.038;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'%3E%3C/rect%3E%3C/svg%3E");
  animation: grain-drift 9s steps(10) infinite;
}

@keyframes grain-drift {
  0%   { transform: translate(0%,    0%);   }
  10%  { transform: translate(-3%,  -6%);   }
  20%  { transform: translate(2%,    5%);   }
  30%  { transform: translate(-5%,   2%);   }
  40%  { transform: translate(4%,   -4%);   }
  50%  { transform: translate(-2%,   6%);   }
  60%  { transform: translate(5%,   -1%);   }
  70%  { transform: translate(-3%,   4%);   }
  80%  { transform: translate(3%,   -5%);   }
  90%  { transform: translate(-1%,   2%);   }
  100% { transform: translate(0%,    0%);   }
}

/* ── Ambient orb ── */
.orb {
  position: fixed;
  top: calc(50% - clamp(320px, 40vw, 560px));
  left: calc(50% - clamp(320px, 40vw, 560px));
  width: clamp(640px, 80vw, 1120px);
  height: clamp(640px, 80vw, 1120px);
  background: radial-gradient(circle at center,
    rgba(242, 244, 248, 0.055) 0%,
    rgba(242, 244, 248, 0.018) 40%,
    transparent 68%
  );
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

/* Lighter blur + smaller orb on touch devices (huge perf win) */
@media (pointer: coarse) {
  .orb {
    filter: blur(50px);
    width: clamp(420px, 80vw, 720px);
    height: clamp(420px, 80vw, 720px);
    top: calc(50% - clamp(210px, 40vw, 360px));
    left: calc(50% - clamp(210px, 40vw, 360px));
  }
  .grain { opacity: 0.025; }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  font-family: var(--f-body);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  border-radius: 2px;
  position: relative;
  overflow: hidden;
  transition: var(--t-base);
  white-space: nowrap;
}

/* Shine sweep on hover */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg,
    transparent 30%,
    rgba(255, 255, 255, 0.18) 50%,
    transparent 70%
  );
  transform: translateX(-100%);
  transition: transform 0.55s var(--ease-expo);
}
.btn:hover::after { transform: translateX(100%); }

/* Small variant (header) */
.btn--sm {
  font-size: 0.7rem;
  padding: 0.55rem 1.25rem;
}

/* Large variant (CTA sections) */
.btn--lg {
  font-size: 0.8rem;
  padding: 1rem 2.5rem;
}

/* Filled – cream on black */
.btn--fill {
  background: var(--c-text);
  color: var(--c-bg);
}
.btn--fill:hover {
  background: rgba(242, 244, 248, 0.85);
}

/* Ghost – border only */
.btn--ghost {
  background: transparent;
  color: var(--c-text);
  border: 1px solid var(--c-border);
}
.btn--ghost:hover {
  border-color: rgba(242, 244, 248, 0.25);
  background: var(--c-surface);
}

/* Ripple on click */
.btn__ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: scale(0);
  animation: ripple 0.55s linear;
  pointer-events: none;
}

@keyframes ripple {
  to { transform: scale(4); opacity: 0; }
}