/*
 * tokens.css — THE single source of truth for all ToolFluency design tokens.
 *
 * Every HTML page, SPA module, tool wrapper, and component file references these
 * variables. To change the theme, edit THIS file — everything cascades.
 *
 * Usage: <link rel="stylesheet" href="/assets/css/tokens.css">
 * Must be loaded BEFORE any other stylesheet.
 *
 * Token categories:
 *   Surfaces  — backgrounds at 4 depth levels
 *   Text      — 4 tiers (primary, muted, faint, on-primary)
 *   Borders   — standard + strong
 *   Brand     — primary color + hover + ring/focus
 *   Accents   — semantic colors (green, red, amber, teal, purple, pink, blue, gray)
 *   Type      — 4 font stacks (display, heading, body, mono)
 *   Spacing   — 6-step scale (xs through 2xl)
 *   Radii     — 3 sizes (sm, default, lg)
 *   Shadows   — 3 levels (sm, default, lg) + glow
 *   Motion    — easing curve + 2 duration tiers
 *   Layout    — content max-width, touch-target min
 */

/* ══════════════════════════════════════
   DARK THEME (default)
   ══════════════════════════════════════ */
:root {
  /* Surfaces */
  --bg:           #1e1b16;
  --surface:      #252118;
  --surface-alt:  #4e4639;
  --surface-inset:#2a251d;

  /* Text */
  --text:           #e9e1d9;
  --text-muted:     #d1c5b4;
  --text-faint:     #7c766f;
  --text-on-primary:#412d00;

  /* Borders */
  --border:        #3f3b35;
  --border-strong: #585148;
  --border-w:      1px;
  --border-w-thick:3px;

  /* Brand */
  --primary:       #f8bd44;
  --primary-hover: #ffcd6e;
  --ring:          #f8bd4466;

  /* Accents */
  --accent-green:  #88d375;
  --accent-red:    #ffaca2;
  --accent-amber:  #f0b92a;
  --accent-teal:   #5ad3d0;
  --accent-purple: #c0b9ff;
  --accent-pink:   #fda4e5;
  --accent-blue:   #9dc3ff;
  --accent-gray:   #a59d91;

  /* Semantic (aliases for accents — used by tools + badges) */
  --success:       #88d375;
  --danger:        #ffaca2;
  --warning:       #f0b92a;
  --info:          #9dc3ff;

  /* Typography */
  --font-display: 'Fraunces', serif;
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body:    'Plus Jakarta Sans', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Spacing scale */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  32px;
  --space-2xl: 48px;

  /* Radii */
  --radius:    12px;
  --radius-sm: 8px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow:    0 4px 20px rgba(0,0,0,0.3);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.24);
  --glow:      0 0 20px rgba(248,189,68,0.15);

  /* Motion */
  --ease:          cubic-bezier(0.16, 1, 0.3, 1);
  --duration:      0.18s;
  --duration-slow: 0.3s;

  /* Layout */
  --content-max: 1100px;
  --touch-min:   44px;
}

/* ══════════════════════════════════════
   LIGHT THEME
   ══════════════════════════════════════ */
[data-theme="light"] {
  --bg:           #faf8f5;
  --surface:      #fff;
  --surface-alt:  #ede9e2;
  --surface-inset:#f3f0ea;

  --text:           #1c1a16;
  --text-muted:     #4a4540;
  --text-faint:     #9a948c;
  /* --text-on-primary stays the same (dark on amber) */

  --border:        #ddd9d0;
  --border-strong: #c8c3b8;

  --primary:       #d4920a;
  --primary-hover: #e8a812;
  --ring:          #d4920a44;

  --shadow:    0 4px 20px rgba(0,0,0,0.08);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --glow:      0 0 20px rgba(212,146,10,0.12);
}

/* ══════════════════════════════════════
   GLOBAL RESETS + BODY DEFAULTS
   ══════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
* { -webkit-tap-highlight-color: transparent; }
a, button, [role="button"] { touch-action: manipulation; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }

/* ══════════════════════════════════════
   SHARED COMPONENT CLASSES
   Used across landing pages, content pages, and tool wrappers.
   ══════════════════════════════════════ */

/* Container */
.container { max-width: var(--content-max); margin: 0 auto; padding: 0 var(--space-lg); }
section { padding: var(--space-2xl) 0; }

/* Hero */
.hero { padding: clamp(60px, 10vw, 110px) 0 var(--space-2xl); text-align: center; }
.hero-eyebrow { font-family: var(--font-heading); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--primary); margin-bottom: var(--space-md); }
.hero-title { font-family: var(--font-display); font-style: italic; font-size: clamp(2.2rem, 5.5vw, 3.8rem); font-weight: 700; color: var(--text); line-height: 1.1; letter-spacing: -0.02em; margin-bottom: var(--space-md); }
.hero-sub { font-family: var(--font-body); font-size: clamp(1rem, 2vw, 1.15rem); color: var(--text-muted); max-width: 580px; margin: 0 auto var(--space-xl); line-height: 1.7; }
.hero-ctas { display: flex; gap: var(--space-sm); justify-content: center; flex-wrap: wrap; }

/* Buttons */
.btn-primary { font-family: var(--font-heading); font-size: 0.9rem; font-weight: 700; background: var(--primary); color: var(--text-on-primary); border: none; border-radius: var(--radius-sm); padding: 14px var(--space-xl); cursor: pointer; box-shadow: var(--glow); transition: background var(--duration) var(--ease), transform var(--duration) var(--ease); min-height: 48px; display: inline-flex; align-items: center; text-decoration: none; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); }
.btn-secondary { font-family: var(--font-heading); font-size: 0.9rem; font-weight: 600; background: none; color: var(--text-muted); border: 1.5px solid var(--border-strong); border-radius: var(--radius-sm); padding: 14px var(--space-xl); cursor: pointer; transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease), transform var(--duration) var(--ease); min-height: 48px; display: inline-flex; align-items: center; text-decoration: none; }
.btn-secondary:hover { color: var(--text); border-color: var(--text-faint); }

/* Section labels */
.section-label { font-family: var(--font-heading); font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--text-faint); display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-lg); }
.section-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.section-title { font-family: var(--font-display); font-style: italic; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; color: var(--text); letter-spacing: -0.02em; margin-bottom: var(--space-sm); }
.section-sub { font-family: var(--font-body); font-size: 1rem; color: var(--text-muted); margin-bottom: var(--space-xl); line-height: 1.6; max-width: 600px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); position: relative; }
.steps::before { content: ''; position: absolute; top: 48px; left: calc(16.66% + 24px); right: calc(16.66% + 24px); height: 1px; background: var(--border); z-index: 0; }
@media (max-width: 640px) { .steps { grid-template-columns: 1fr; } .steps::before { display: none; } }
.step { text-align: center; padding: var(--space-lg); position: relative; z-index: 1; }
.step-num { width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: var(--text-on-primary); font-family: var(--font-heading); font-size: 1rem; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto var(--space-md); box-shadow: var(--glow); }
.step-title { font-family: var(--font-heading); font-size: 0.9rem; font-weight: 700; color: var(--text); margin-bottom: var(--space-xs); }
.step-desc { font-family: var(--font-body); font-size: 0.82rem; color: var(--text-faint); line-height: 1.5; }

/* Feature cards */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--space-md); }
.feature-card { background: var(--surface-inset); border: 1px solid var(--border-strong); border-radius: var(--radius-lg); padding: var(--space-lg); transition: background var(--duration-slow) var(--ease), transform var(--duration-slow) var(--ease), box-shadow var(--duration-slow) var(--ease); }
.feature-card:hover { transform: translateY(-2px); border-color: var(--primary); box-shadow: var(--shadow); }
.feature-icon { font-size: 1.6rem; margin-bottom: var(--space-sm); }
.feature-title { font-family: var(--font-heading); font-size: 0.9rem; font-weight: 700; color: var(--text); margin-bottom: var(--space-xs); }
.feature-desc { font-family: var(--font-body); font-size: 0.8rem; color: var(--text-faint); line-height: 1.5; }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: var(--space-sm); max-width: 720px; }
.faq-item { background: var(--surface-inset); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-q { font-family: var(--font-heading); font-size: 0.88rem; font-weight: 700; color: var(--text); padding: var(--space-md) var(--space-lg); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: var(--space-md); user-select: none; }
.faq-q::after { content: '+'; font-size: 1.2rem; color: var(--primary); flex-shrink: 0; transition: transform var(--duration) var(--ease); }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { font-family: var(--font-body); font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; padding: 0 var(--space-lg) var(--space-md); display: none; }
.faq-item.open .faq-a { display: block; }

/* CTA banner */
.cta-banner { background: var(--surface-inset); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl); text-align: center; }

/* Footer */
.site-footer { background: var(--surface-inset); border-top: 1px solid var(--border); padding: var(--space-2xl) 0 var(--space-xl); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
.footer-tagline { font-family: var(--font-body); font-size: 0.82rem; color: var(--text-faint); line-height: 1.5; margin-top: var(--space-sm); max-width: 240px; }
.footer-col-title { font-family: var(--font-heading); font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-faint); margin-bottom: var(--space-md); }
.footer-links { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer-link { font-family: var(--font-body); font-size: 0.82rem; color: var(--text-muted); transition: color var(--duration) var(--ease); }
.footer-link:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: var(--space-lg); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-sm); }
.footer-copy { font-family: var(--font-body); font-size: 0.75rem; color: var(--text-faint); }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; }
.logo-mark { width: 28px; height: 28px; border-radius: 6px; background: var(--primary); color: var(--text-on-primary); display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-size: 13px; font-weight: 800; }
.logo-name { font-family: var(--font-heading); font-size: 1rem; color: var(--text); }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* Pricing (shared across business.html, personal.html, pricing.html) */
.pricing-toggle { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-xl); }
.toggle-wrap { display: flex; background: var(--surface-inset); border: 1px solid var(--border-strong); border-radius: 100px; padding: 3px; }
.toggle-opt { font-family: var(--font-heading); font-size: 0.75rem; font-weight: 700; padding: 6px 16px; border-radius: 100px; cursor: pointer; color: var(--text-faint); border: none; background: none; transition: background var(--duration) var(--ease), color var(--duration) var(--ease); }
.toggle-opt.active { background: var(--primary); color: var(--text-on-primary); }
.save-badge { font-family: var(--font-heading); font-size: 0.65rem; font-weight: 700; background: rgba(136,211,117,0.2); color: var(--accent-green); border-radius: 100px; padding: 3px 10px; }
.pricing-cards { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
@media (max-width: 640px) { .pricing-cards { grid-template-columns: 1fr; } }
.pricing-card { background: var(--surface-inset); border: 1.5px solid var(--border-strong); border-radius: var(--radius-lg); padding: var(--space-xl); position: relative; overflow: hidden; }
.pricing-card.featured { border-color: var(--primary); box-shadow: var(--glow); }
.pricing-card.featured::before { content: 'Most Popular'; position: absolute; top: var(--space-md); right: var(--space-md); font-family: var(--font-heading); font-size: 0.6rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; background: var(--primary); color: var(--text-on-primary); border-radius: 100px; padding: 3px 10px; }
.plan-name { font-family: var(--font-heading); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-faint); margin-bottom: var(--space-sm); }
.plan-price { font-family: var(--font-display); font-style: italic; font-size: 2.8rem; font-weight: 700; color: var(--primary); line-height: 1; }
.plan-price sup { font-size: 1rem; font-style: normal; vertical-align: super; }
.plan-price-sub { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-faint); margin-bottom: var(--space-lg); }
.plan-features { display: flex; flex-direction: column; gap: var(--space-sm); margin-bottom: var(--space-xl); }
.plan-feature { display: flex; align-items: flex-start; gap: var(--space-sm); font-family: var(--font-body); font-size: 0.82rem; color: var(--text-muted); }
.check { color: var(--accent-green); font-size: 0.9rem; flex-shrink: 0; margin-top: 1px; }

/* Comparison table */
.compare-table { width: 100%; border-collapse: collapse; margin-top: var(--space-xl); }
.compare-table th { font-family: var(--font-heading); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint); padding: var(--space-sm) var(--space-md); text-align: center; border-bottom: 1px solid var(--text-faint); }
.compare-table th:first-child { text-align: left; }
.compare-table td { padding: 12px var(--space-md); border-bottom: 1px solid var(--border); font-family: var(--font-body); font-size: 0.82rem; color: var(--text-muted); text-align: center; }
.compare-table td:first-child { text-align: left; color: var(--text); }
.compare-table tr:hover td { background: color-mix(in srgb, var(--primary) 5%, transparent); }
.tick { color: var(--accent-green); }
.cross { color: var(--text-faint); }