/* ============================================================
   Mohamed | Digital Labs — Background textures & effects
   Load AFTER colors_and_type.css
   ============================================================ */

/* A. Grid (signature) */
.bg-grid {
  background-image:
    linear-gradient(rgba(13, 231, 180, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 231, 180, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}

.bg-grid-accent {
  background-image:
    linear-gradient(rgba(13, 231, 180, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 231, 180, 0.07) 1px, transparent 1px),
    linear-gradient(rgba(13, 231, 180, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 231, 180, 0.15) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px, 240px 240px, 240px 240px;
}

/* B. Radial glow (aurora) */
.bg-radial-glow {
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%, rgba(13, 231, 180, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 80% 30%, rgba(216, 255, 133, 0.08) 0%, transparent 70%);
}

.bg-radial-center {
  background:
    radial-gradient(ellipse 50% 50% at 50% 40%, rgba(13, 231, 180, 0.10) 0%, transparent 60%),
    radial-gradient(ellipse 30% 60% at 70% 70%, rgba(216, 255, 133, 0.06) 0%, transparent 50%);
}

/* C. Dot matrix */
.bg-dots {
  background-image: radial-gradient(rgba(13, 231, 180, 0.1) 1px, transparent 1px);
  background-size: 24px 24px;
}

.bg-dots-wide {
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1.5px, transparent 1.5px);
  background-size: 32px 32px;
}

/* D. Topographic lines */
.bg-topo {
  background-image:
    repeating-radial-gradient(
      ellipse at 30% 60%,
      transparent 0px, transparent 18px,
      rgba(13, 231, 180, 0.04) 18px, rgba(13, 231, 180, 0.04) 19px
    ),
    repeating-radial-gradient(
      ellipse at 70% 30%,
      transparent 0px, transparent 24px,
      rgba(216, 255, 133, 0.03) 24px, rgba(216, 255, 133, 0.03) 25px
    );
}

/* E. Diagonal hatching */
.bg-diag {
  background-image: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    rgba(13, 231, 180, 0.04) 8px,
    rgba(13, 231, 180, 0.04) 9px
  );
}

/* F. Noise / grain */
.bg-noise {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* G. Gradient mesh */
.bg-mesh {
  background:
    radial-gradient(ellipse at 10% 90%, rgba(13, 231, 180, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 10%, rgba(216, 255, 133, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(13, 231, 180, 0.03) 0%, transparent 60%),
    var(--color-bg-primary);
}

/* ========== Glass / liquid glass ========== */

.glass-card {
  background: rgba(10, 33, 31, 0.6);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
}

.liquid-glass {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.08) 0%,
    rgba(255, 255, 255, 0.02) 50%,
    rgba(13, 231, 180, 0.04) 100%
  );
  backdrop-filter: blur(24px) saturate(1.4) brightness(1.05);
  -webkit-backdrop-filter: blur(24px) saturate(1.4) brightness(1.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 -1px 0 rgba(0, 0, 0, 0.05);
}

.liquid-glass-teal {
  background: linear-gradient(
    135deg,
    rgba(13, 231, 180, 0.08) 0%,
    rgba(255, 255, 255, 0.03) 40%,
    rgba(216, 255, 133, 0.05) 100%
  );
  backdrop-filter: blur(24px) saturate(1.5) brightness(1.08);
  -webkit-backdrop-filter: blur(24px) saturate(1.5) brightness(1.08);
  border: 1px solid rgba(13, 231, 180, 0.12);
  border-radius: var(--radius-xl);
  box-shadow:
    0 8px 32px rgba(13, 231, 180, 0.06),
    inset 0 1px 0 rgba(13, 231, 180, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .liquid-glass {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.7) 0%,
    rgba(255, 255, 255, 0.4) 50%,
    rgba(11, 170, 133, 0.04) 100%
  );
  backdrop-filter: blur(24px) saturate(1.2);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(0, 0, 0, 0.02);
}

/* ========== Sparkle bullet list ========== */

.sparkle-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
}
.sparkle-list li {
  padding-left: 24px;
  position: relative;
  margin-bottom: 10px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-primary);
}
.sparkle-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M8 0C8 0 9.5 5 8 8C5 9.5 0 8 0 8C0 8 5 6.5 8 8C6.5 5 8 0 8 0Z'/%3E%3Cpath d='M8 16C8 16 6.5 11 8 8C11 6.5 16 8 16 8C16 8 11 9.5 8 8C9.5 11 8 16 8 16Z'/%3E%3C/svg%3E");
  mask-size: contain;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M8 0C8 0 9.5 5 8 8C5 9.5 0 8 0 8C0 8 5 6.5 8 8C6.5 5 8 0 8 0Z'/%3E%3Cpath d='M8 16C8 16 6.5 11 8 8C11 6.5 16 8 16 8C16 8 11 9.5 8 8C9.5 11 8 16 8 16Z'/%3E%3C/svg%3E");
  -webkit-mask-size: contain;
}
.sparkle-list.lime li::before { background: var(--color-accent-secondary); }

/* ========== Dividers ========== */

.divider-gradient {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), var(--color-accent-secondary), transparent);
  border: none;
  margin: 48px 0;
}

.divider-dotted {
  height: 1px;
  background-image: radial-gradient(circle, var(--color-accent) 1px, transparent 1px);
  background-size: 8px 1px;
  border: none;
}

.divider-text {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}
.divider-text::before,
.divider-text::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* ============================================================
   Liquid Glass — extra opaque variants for floating hero cards
   ============================================================ */
.liquid-glass-tinted {
  background: linear-gradient(135deg, rgba(13, 231, 180, 0.1), rgba(216, 255, 133, 0.04));
  backdrop-filter: blur(24px) saturate(1.5) brightness(1.08);
  -webkit-backdrop-filter: blur(24px) saturate(1.5) brightness(1.08);
  border: 1px solid rgba(13, 231, 180, 0.18);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1),
    0 24px 60px -20px rgba(13, 231, 180, 0.2);
  border-radius: 16px;
}

.liquid-glass-dark {
  background: rgba(6, 14, 13, 0.55);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  border: 1px solid rgba(30, 74, 69, 0.5);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 20px 50px -16px rgba(0, 0, 0, 0.6);
  border-radius: 16px;
}