/* =============================================================================
   ZEROZENZONE — DESIGN TOKENS
   Single source of truth for color, typography, spacing, radii, shadows.
   Change a value here and the whole site updates.

   Brand palette:
     Metallic Gold  #DAAF14
     White          #FFFFFF
     Black          #000000

   Tagline ideas: "Silence the noise. Build the self."
                  "Faith. Discipline. Legacy."
============================================================================= */

:root {
  /* ====== BRAND ====== */
  --color-brand-primary:        #DAAF14;
  --color-brand-primary-hover:  #C49A0F;
  --color-brand-primary-active: #A88308;
  --color-brand-primary-light:  #FBEFC5;
  --color-brand-primary-tint:   #FDF8E1;
  --color-brand-black:          #000000;
  --color-brand-white:          #FFFFFF;

  /* ====== SEMANTIC: TEXT ====== */
  --color-text-primary:    #0A0A0A;
  --color-text-secondary:  #4A4A4A;
  --color-text-tertiary:   #8A8A8A;
  --color-text-muted:      #B0B0B0;
  --color-text-inverse:    #FFFFFF;
  --color-text-accent:     #DAAF14;
  --color-text-link:       #0A0A0A;
  --color-text-link-hover: #DAAF14;

  /* ====== SEMANTIC: BACKGROUND ====== */
  --color-background-primary:    #FFFFFF;
  --color-background-secondary:  #F7F7F5;
  --color-background-tertiary:   #EFEFEC;
  --color-background-dark:       #0A0A0A;
  --color-background-darker:     #000000;
  --color-background-accent:     #DAAF14;
  --color-background-accent-soft:#FDF8E1;

  /* ====== SEMANTIC: BORDER ====== */
  --color-border-primary:    #0A0A0A;
  --color-border-secondary:  #C8C8C5;
  --color-border-tertiary:   #E5E5E2;
  --color-border-quaternary: #F0F0EE;
  --color-border-accent:     #DAAF14;

  /* ====== FEEDBACK ====== */
  --color-success:        #1D9E75;
  --color-success-bg:     #E1F5EE;
  --color-success-border: #5DCAA5;
  --color-warning:        #E89A1A;
  --color-warning-bg:     #FAEEDA;
  --color-danger:         #D03B2F;
  --color-danger-bg:      #FAECE7;
  --color-info:           #2C6FD1;
  --color-info-bg:        #E4EEF9;

  /* ====== TYPOGRAPHY ====== */
  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-mono:    'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;

  --fs-xs:    11px;
  --fs-sm:    13px;
  --fs-base:  15px;
  --fs-md:    17px;
  --fs-lg:    20px;
  --fs-xl:    24px;
  --fs-2xl:   32px;
  --fs-3xl:   44px;
  --fs-hero:  60px;
  --fs-display:80px;

  --fw-regular:   400;
  --fw-medium:    500;
  --fw-semibold:  600;
  --fw-bold:      700;
  --fw-black:     900;

  --lh-tight:   1.15;
  --lh-snug:    1.3;
  --lh-normal:  1.55;
  --lh-relaxed: 1.75;

  --ls-tight:   -0.02em;
  --ls-normal:  0;
  --ls-wide:    0.04em;
  --ls-wider:   0.08em;

  /* ====== RADII ====== */
  --border-radius-none: 0;
  --border-radius-sm:   4px;
  --border-radius-md:   8px;
  --border-radius-lg:   12px;
  --border-radius-xl:   20px;
  --border-radius-2xl:  28px;
  --border-radius-pill: 999px;

  /* ====== SPACING ====== */
  --space-0:  0;
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-7:  48px;
  --space-8:  64px;
  --space-9:  96px;
  --space-10: 128px;

  /* ====== SHADOWS ====== */
  --shadow-xs:    0 1px 1px rgba(0,0,0,0.04);
  --shadow-sm:    0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:    0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg:    0 10px 30px rgba(0,0,0,0.12);
  --shadow-xl:    0 24px 60px rgba(0,0,0,0.18);
  --shadow-gold:  0 6px 20px rgba(218,175,20,0.25);
  --shadow-gold-lg: 0 14px 38px rgba(218,175,20,0.32);
  --shadow-inset: inset 0 1px 2px rgba(0,0,0,0.06);

  /* ====== TRANSITIONS ====== */
  --transition-fast:    120ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:    200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:    320ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce:  400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ====== Z-INDEX ====== */
  --z-base:      1;
  --z-dropdown:  100;
  --z-sticky:    200;
  --z-overlay:   500;
  --z-modal:     1000;
  --z-toast:     2000;
  --z-tooltip:   3000;

  /* ====== LAYOUT ====== */
  --container-max:    1200px;
  --container-narrow: 760px;
  --container-wide:   1440px;
  --header-height:    72px;
  --header-height-mobile: 60px;
  --footer-min-height: 280px;

  /* ====== TRACKER (book-companion module — see tracker.css) ====== */
  --tracker-streak-bg:   #FAEEDA;
  --tracker-streak-fg:   #A86E12;
  --tracker-score-0:     #F7F7F5;
  --tracker-score-1:     #E1F5EE;
  --tracker-score-2:     #9FE1CB;
  --tracker-score-3:     #5DCAA5;
  --tracker-score-4:     #1D9E75;
  --tracker-score-5:     #0F6E56;
}

/* ====== BASELINE RESET ====== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text-primary);
  background: var(--color-background-primary);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--color-text-primary);
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
h5 { font-size: var(--fs-md); }
h6 { font-size: var(--fs-base); }

p { margin: 0 0 var(--space-4); line-height: var(--lh-normal); }

a {
  color: var(--color-text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-text-link-hover); }

img, svg, video { max-width: 100%; height: auto; display: block; }

button {
  font-family: inherit;
  cursor: pointer;
  border: 0;
  background: transparent;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* ====== UTILITY: CONTAINER ====== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}
.container-narrow { max-width: var(--container-narrow); }
.container-wide   { max-width: var(--container-wide); }

/* ====== UTILITY: BUTTON PRIMITIVES ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  line-height: 1;
  border-radius: var(--border-radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}
.btn:disabled, .btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-brand-primary);
  color: var(--color-brand-black);
  box-shadow: var(--shadow-gold);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-brand-primary-hover);
  box-shadow: var(--shadow-gold-lg);
  transform: translateY(-1px);
  color: var(--color-brand-black);
}
.btn-primary:active:not(:disabled) {
  background: var(--color-brand-primary-active);
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-brand-black);
  color: var(--color-brand-white);
}
.btn-secondary:hover:not(:disabled) {
  background: #1a1a1a;
  color: var(--color-brand-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-primary);
}
.btn-outline:hover:not(:disabled) {
  background: var(--color-brand-black);
  color: var(--color-brand-white);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
}

.btn-lg { padding: var(--space-4) var(--space-6); font-size: var(--fs-md); }
.btn-sm { padding: var(--space-2) var(--space-3); font-size: var(--fs-sm); }
.btn-block { width: 100%; }

/* ====== UTILITY: FORM PRIMITIVES ====== */
.form-control,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-base);
  line-height: var(--lh-snug);
  color: var(--color-text-primary);
  background: var(--color-background-primary);
  border: 1px solid var(--color-border-tertiary);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-control:focus,
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-brand-primary);
  box-shadow: 0 0 0 3px rgba(218,175,20,0.18);
}
.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
}
.form-error {
  margin-top: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--color-danger);
}
.form-help {
  margin-top: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--color-text-tertiary);
}

/* ====== UTILITY: BADGES / PILLS ====== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  border-radius: var(--border-radius-pill);
  background: var(--color-background-secondary);
  color: var(--color-text-secondary);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}
.badge-gold    { background: var(--color-brand-primary-light); color: #6E5404; }
.badge-success { background: var(--color-success-bg);  color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg);  color: var(--color-warning); }
.badge-danger  { background: var(--color-danger-bg);   color: var(--color-danger); }
.badge-info    { background: var(--color-info-bg);     color: var(--color-info); }

/* ====== UTILITY: CARD ====== */
.card {
  background: var(--color-background-primary);
  border: 1px solid var(--color-border-tertiary);
  border-radius: var(--border-radius-lg);
  padding: var(--space-5);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}
.card-hover:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ====== ACCESSIBILITY HELPERS ====== */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: 2px;
  border-radius: var(--border-radius-sm);
}

/* ====== RESPONSIVE TYPE SCALE ====== */
@media (max-width: 768px) {
  :root {
    --fs-hero: 40px;
    --fs-3xl: 32px;
    --fs-2xl: 24px;
    --fs-xl:  20px;
    --header-height: var(--header-height-mobile);
  }
}