/* ── Sunlit effect (adapted from jackyzha0/sunlit) ── */

body {
  --light: #fffdfa;
  --shadow: #1a1917;
  --bounce-light: #f5d7a6;
  --timing-fn: cubic-bezier(0.455, 0.190, 0.000, 0.985);

  --text-primary: #1a1917;
  --text-muted: rgba(26, 25, 23, 0.7);
  --text-subtle: rgba(26, 25, 23, 0.6);

  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  background-color: var(--light);
}

/* ── Dappled light layer ── */

#dappled-light {
  pointer-events: none;
  position: fixed;
  height: 100vh;
  width: 100vw;
  z-index: 0;
}

#glow,
#glow-bounce,
.perspective {
  transition: opacity 2s var(--timing-fn);
}

#glow {
  position: absolute;
  background: linear-gradient(51deg, var(--bounce-light), var(--bounce-light) 20%, transparent);
  height: 100%;
  width: 100%;
  opacity: 0.5;
}

#glow-bounce {
  position: absolute;
  background: linear-gradient(5deg, var(--bounce-light) 0%, transparent 30%, transparent 100%);
  opacity: 0.5;
  height: 100%;
  width: 100%;
  bottom: 0;
}

/* ── Window blinds perspective ── */

.perspective {
  position: absolute;
  top: -30vh;
  left: 0;
  width: 80vw;
  height: 130vh;
  opacity: 0.07;
  background-blend-mode: darken;
  transform-origin: top left;
  transform-style: preserve-3d;
  transform: matrix3d(
    0.7500,  0.0625, 0.0000, -0.0008,
    0.0000,  1.0000, 0.0000,  0.0000,
    0.0000,  0.0000, 1.0000,  0.0000,
    0.0000,  0.0000, 0.0000,  1.0000
  );
}

#leaves {
  position: absolute;
  bottom: -20px;
  left: -700px;
  width: 1600px;
  height: 1400px;
  background-image: url("../leaves.png");
  background-size: cover;
  background-repeat: no-repeat;
  filter: url(#wind);
  animation: billow 8s ease-in-out infinite;
}

#blinds {
  position: relative;
  width: 100%;
}

#blinds .shutter,
#blinds .bar {
  background-color: var(--shadow);
}

#blinds > .shutters {
  display: flex;
  flex-direction: column;
  align-items: start;
  gap: 60px;
}

#blinds > .vertical {
  top: 0;
  position: absolute;
  height: 100%;
  width: 100%;
  display: flex;
  justify-content: space-around;
}

.vertical > .bar {
  width: 5px;
  height: 100%;
}

.shutter {
  width: 100%;
  height: 40px;
}

@keyframes billow {
  0%   { transform: perspective(400px) rotateX(0deg) rotateY(0deg) scale(1); }
  25%  { transform: perspective(400px) rotateX(1deg) rotateY(2deg) scale(1.02); }
  50%  { transform: perspective(400px) rotateX(-4deg) rotateY(-2deg) scale(0.97); }
  75%  { transform: perspective(400px) rotateX(1deg) rotateY(-1deg) scale(1.04); }
  100% { transform: perspective(400px) rotateX(0deg) rotateY(0deg) scale(1); }
}

/* ── Typography ── */

.brand-title {
  color: var(--text-primary);
}

.brand-subtitle {
  color: var(--text-muted);
}

.ig-link {
  color: var(--text-subtle);
}

.ig-link:hover {
  color: var(--text-primary);
}

/* ── Progressive blur ── */

#progressive-blur {
  position: absolute;
  height: 100%;
  width: 100%;
}

#progressive-blur > div {
  position: absolute;
  height: 100%;
  width: 100%;
  inset: 0;
  backdrop-filter: blur(var(--blur-amount));
  mask-image: linear-gradient(108deg, transparent, transparent var(--stop1), black var(--stop2), black);
}

#progressive-blur > div:nth-child(1) {
  --blur-amount: 6px;
  --stop1: 0%;
  --stop2: 0%;
}

#progressive-blur > div:nth-child(2) {
  --blur-amount: 12px;
  --stop1: 40%;
  --stop2: 80%;
}

#progressive-blur > div:nth-child(3) {
  --blur-amount: 48px;
  --stop1: 40%;
  --stop2: 70%;
}

#progressive-blur > div:nth-child(4) {
  --blur-amount: 96px;
  --stop1: 70%;
  --stop2: 80%;
}