/* ═══════════════════════════════════════════════════════════════
   SNZ Sona Consulting — Global Design System
   Visual layer: depth, grain, glow, typography, a11y, light mode
   ═══════════════════════════════════════════════════════════════ */

/* ── 1. CSS Custom Properties ── */
:root {
  --gold:        #C9A84C;
  --gold-light:  #E2C97E;
  --gold-glow:   rgba(201, 168, 76, 0.08);
  --gold-glow-md:rgba(201, 168, 76, 0.14);
  --ink:         #0D0D0D;
  --ink-1:       #111111;
  --ink-2:       #181818;
  --ink-3:       #222222;
  --ink-4:       #2A2A2A;
  --ink-5:       #333333;
  --ink-6:       #444444;
  --offwhite:    #F7F4EF;
  --text-primary:#F0EDE8;
  --text-muted:  #9A9490;
  --text-subtle: #666260;

  /* Typography */
  --ls-body: 0.02em;
  --lh-body: 1.6;

  /* Transitions */
  --trans-fast: 150ms cubic-bezier(0.4,0,0.2,1);
  --trans-mid:  250ms cubic-bezier(0.4,0,0.2,1);
  --trans-slow: 400ms cubic-bezier(0.4,0,0.2,1);

  /* Glow shadows */
  --shadow-gold-sm: 0 0 0 1px rgba(201,168,76,0.12), 0 0 12px rgba(201,168,76,0.06);
  --shadow-gold-md: 0 0 0 1px rgba(201,168,76,0.18), 0 0 24px rgba(201,168,76,0.10);
  --shadow-gold-lg: 0 0 0 1px rgba(201,168,76,0.22), 0 0 40px rgba(201,168,76,0.14);
  --shadow-elevation: 0 4px 20px rgba(0,0,0,0.4), 0 1px 4px rgba(0,0,0,0.3);
}

/* ── 2. Light Mode Palette ── */
[data-theme="light"] {
  --ink:         #F5F1EB;
  --ink-1:       #EDE8E0;
  --ink-2:       #E5DFD5;
  --ink-3:       #D8D0C4;
  --ink-4:       #C8BFB1;
  --ink-5:       #B5AB9C;
  --ink-6:       #9A8F80;
  --offwhite:    #1A1714;
  --text-primary:#1C1916;
  --text-muted:  #5A5248;
  --text-subtle: #7A706A;
  --gold-glow:   rgba(201, 168, 76, 0.10);
  --gold-glow-md:rgba(201, 168, 76, 0.18);
  --shadow-gold-sm: 0 0 0 1px rgba(201,168,76,0.20), 0 0 12px rgba(201,168,76,0.08);
  --shadow-gold-md: 0 0 0 1px rgba(201,168,76,0.28), 0 0 24px rgba(201,168,76,0.14);
  --shadow-elevation: 0 4px 20px rgba(0,0,0,0.10), 0 1px 4px rgba(0,0,0,0.06);
}

/* ── 3. Base Typography ── */
body {
  letter-spacing: var(--ls-body);
  line-height: var(--lh-body);
  background-color: var(--ink);
  color: var(--text-primary);
}

p, li, td, th, label, input, textarea, select, blockquote {
  letter-spacing: var(--ls-body);
  line-height: var(--lh-body);
}

/* Headings tighten tracking */
h1, h2, h3, h4, h5, h6 {
  letter-spacing: -0.01em;
  line-height: 1.2;
}

/* ── 4. Grain / Noise Texture ── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 300px 300px;
}

[data-theme="light"] body::after {
  opacity: 0.015;
}

/* ── 5. Card & Panel Glow Borders ── */
/* Replace hard borders with soft glow system */
.snz-card,
.snz-panel,
[class*="bg-"][class*="1A1A1A"],
[class*="bg-"][class*="181818"],
[class*="bg-"][class*="111111"] {
  box-shadow: var(--shadow-gold-sm);
  transition: box-shadow var(--trans-mid), transform var(--trans-mid);
}

.snz-card:hover,
.snz-panel:hover {
  box-shadow: var(--shadow-gold-md);
  transform: translateY(-1px);
}

/* Generic border-gold glow utility */
.border-glow {
  border: 1px solid transparent !important;
  box-shadow: var(--shadow-gold-sm);
}

.border-glow:hover,
.border-glow:focus-within {
  box-shadow: var(--shadow-gold-md);
}

.border-glow-lg {
  border: 1px solid transparent !important;
  box-shadow: var(--shadow-gold-md);
}

.border-glow-lg:hover {
  box-shadow: var(--shadow-gold-lg);
}

/* ── 6. Focus Indicators (Accessibility) ── */
*:focus {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Inputs */
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 0;
  box-shadow: 0 0 0 4px rgba(201,168,76,0.12);
}

/* Buttons */
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ── 7. Glassmorphism Utility ── */
.glass {
  background: rgba(24, 24, 24, 0.72);
  backdrop-filter: blur(16px) saturate(1.5);
  -webkit-backdrop-filter: blur(16px) saturate(1.5);
}

.glass-light {
  background: rgba(24, 24, 24, 0.50);
  backdrop-filter: blur(12px) saturate(1.3);
  -webkit-backdrop-filter: blur(12px) saturate(1.3);
}

[data-theme="light"] .glass {
  background: rgba(229, 223, 213, 0.80);
}

[data-theme="light"] .glass-light {
  background: rgba(229, 223, 213, 0.60);
}

/* ── 8. Skeleton Shimmer ── */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--ink-2) 0%,
    var(--ink-3) 50%,
    var(--ink-2) 100%
  );
  background-size: 200% 100%;
  animation: snz-shimmer 1.6s ease-in-out infinite;
  border-radius: 4px;
}

@keyframes snz-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

[data-theme="light"] .skeleton {
  background: linear-gradient(
    90deg,
    var(--ink-3) 0%,
    var(--ink-2) 50%,
    var(--ink-3) 100%
  );
  background-size: 200% 100%;
  animation: snz-shimmer 1.6s ease-in-out infinite;
}

/* ── 9. Magnetic Button Wrapper ── */
.magnetic {
  display: inline-flex;
  will-change: transform;
  transition: transform 0.35s cubic-bezier(0.25,0.46,0.45,0.94);
}

/* ── 10. Gold Pulse Border Animation ── */
@keyframes gold-pulse {
  0%, 100% { box-shadow: var(--shadow-gold-sm); }
  50%       { box-shadow: var(--shadow-gold-lg); }
}

.gold-pulse {
  animation: gold-pulse 3s ease-in-out infinite;
}

/* ── 11. Theme Toggle Button ── */
#snz-theme-toggle {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 10000;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  border: 1px solid rgba(201,168,76,0.25);
  background: var(--ink-2);
  color: var(--gold);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-gold-sm), var(--shadow-elevation);
  transition: box-shadow var(--trans-mid), transform var(--trans-fast), background var(--trans-mid);
  font-size: 1rem;
}

#snz-theme-toggle:hover {
  box-shadow: var(--shadow-gold-md), var(--shadow-elevation);
  transform: scale(1.08);
}

#snz-theme-toggle:active {
  transform: scale(0.95);
}

/* ── 12. Scrollbar (dark) ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--ink-1);
}

::-webkit-scrollbar-thumb {
  background: var(--ink-5);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}

/* ── 13. Selection ── */
::selection {
  background: rgba(201,168,76,0.22);
  color: var(--gold-light);
}

/* ── 14. Smooth scroll ── */
html {
  scroll-behavior: smooth;
}

/* ── 15. Light mode body/card overrides ── */
[data-theme="light"] body {
  background-color: var(--ink);
}

[data-theme="light"] .bg-ink {
  background-color: var(--ink) !important;
}

[data-theme="light"] .bg-ink-1 {
  background-color: var(--ink-1) !important;
}

[data-theme="light"] .bg-ink-2 {
  background-color: var(--ink-2) !important;
}

[data-theme="light"] .text-offwhite {
  color: var(--offwhite) !important;
}

[data-theme="light"] .text-gray-300 {
  color: #3A3430 !important;
}

[data-theme="light"] .text-gray-400 {
  color: #5A5248 !important;
}

[data-theme="light"] .text-gray-500 {
  color: #6A6258 !important;
}

[data-theme="light"] nav {
  background: rgba(229, 223, 213, 0.92) !important;
  border-bottom-color: rgba(201,168,76,0.20) !important;
}

[data-theme="light"] nav a,
[data-theme="light"] nav button {
  color: #2A2420 !important;
}