/* ============================================================
   vibc.ai — Shared Design System (Bold & Colorful)
   assets/css/vibc-theme.css
   ============================================================
   One file. Every page links it. Change design here = changes
   everywhere. Includes light + dark theme via [data-theme].
   ============================================================ */

/* ── FONTS ── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

/* ============================================================
   THEME TOKENS — Dark (default) and Light
   ============================================================ */
:root,
[data-theme="dark"] {
  /* Brand colors — violet is the single accent; others kept muted for gamification only */
  --violet:      #6E56CF;
  --violet-soft: #8B7BD8;
  --magenta:     #C2569B;
  --lime:        #A8C44A;
  --sunshine:    #D4A24E;
  --cyan:        #5AAEB0;

  /* Dark theme surfaces — neutral charcoal, no purple tint (Linear style) */
  --bg:          #0D0D0F;
  --bg-2:        #151517;
  --surface:     #19191C;
  --surface-2:   #202023;
  --card:        #1A1A1D;
  --ink:         #EDEDEF;
  --ink-dim:     rgba(237,237,239,0.62);
  --ink-faint:   rgba(237,237,239,0.38);
  --border:      rgba(255,255,255,0.08);
  --border-2:    rgba(255,255,255,0.13);

  /* Flat, soft shadows — no chunky sticker shadow */
  --shadow-sticker: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-soft: 0 8px 30px rgba(0,0,0,0.35);

  /* Restrained gradient signatures (very subtle) */
  --grad-hero: radial-gradient(circle at 30% 15%, rgba(110,86,207,0.12), transparent 55%);
  --grad-brand: linear-gradient(135deg, var(--violet), var(--violet-soft));
  --grad-lime:  linear-gradient(135deg, var(--violet), var(--violet-soft));
}

[data-theme="light"] {
  --bg:          #FFFFFF;
  --bg-2:        #FAFAFA;
  --surface:     #FFFFFF;
  --surface-2:   #F6F6F7;
  --card:        #FFFFFF;
  --ink:         #1A1A1E;
  --ink-dim:     rgba(26,26,30,0.64);
  --ink-faint:   rgba(26,26,30,0.42);
  --border:      rgba(26,26,30,0.09);
  --border-2:    rgba(26,26,30,0.14);

  --shadow-sticker: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-soft: 0 4px 20px rgba(0,0,0,0.06);

  --grad-hero: radial-gradient(circle at 30% 15%, rgba(110,86,207,0.06), transparent 55%);
}

/* ============================================================
   TYPE SCALE
   ============================================================ */
:root {
  --font-display: 'Inter', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'Space Mono', monospace;

  --r-sm: 6px;
  --r:    8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-pill: 999px;

  --maxw: 1200px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================================
   BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.4s var(--ease), color 0.4s var(--ease);
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: var(--violet); border-radius: 10px; border: 2px solid var(--bg-2); }

::selection { background: var(--lime); color: #0E0B1A; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.05; letter-spacing: -0.02em; }

a { color: inherit; text-decoration: none; }

/* ============================================================
   THEME TOGGLE BUTTON
   ============================================================ */
.theme-toggle {
  width: 52px; height: 30px;
  border-radius: var(--r-pill);
  background: var(--surface-2);
  border: 2px solid var(--border-2);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: background 0.3s var(--ease);
  padding: 0;
}
.theme-toggle::before {
  content: '🌙';
  position: absolute;
  top: 50%; left: 4px;
  transform: translateY(-50%);
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--grad-brand);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
  transition: left 0.3s var(--ease-bounce), content 0.3s;
}
[data-theme="light"] .theme-toggle::before {
  left: 26px;
  content: '☀️';
  background: var(--grad-lime);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease-bounce), box-shadow 0.2s var(--ease), background 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--shadow-sticker);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(110,86,207,0.25); }

.btn-lime {
  background: var(--lime);
  color: #0E0B1A;
  box-shadow: var(--shadow-sticker);
}
.btn-lime:hover { transform: translateY(-1px); }

.btn-ghost {
  background: var(--surface);
  color: var(--ink);
  border: 2px solid var(--border-2);
}
.btn-ghost:hover { border-color: var(--violet); color: var(--violet); transform: translateY(-1px); }

.btn-lg { padding: 0.9rem 2rem; font-size: 1.05rem; }

/* ============================================================
   NAV
   ============================================================ */
.vnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 68px; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 2px solid var(--border);
}
.vnav-logo {
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 700;
  display: flex; align-items: center; gap: 0.3rem; letter-spacing: -0.03em;
}
.vnav-logo .dot { color: var(--magenta); }
.vnav-logo .blip {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--lime); margin-left: 2px;
  box-shadow: 0 0 12px var(--lime);
  animation: blip 2s ease-in-out infinite;
}
@keyframes blip { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(0.8)} }

.vnav-links { display: flex; gap: 1.5rem; list-style: none; align-items: center; }
.vnav-links a {
  font-family: var(--font-mono, monospace);
  font-size: 0.82rem; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--ink-dim);
  position: relative; padding: 0.2rem 0; transition: color 0.2s;
}
.vnav-links a::after{
  content: ''; position: absolute; left: 0; right: 100%; bottom: -2px;
  height: 2px; background: var(--grad-brand, linear-gradient(90deg,var(--violet),var(--magenta)));
  border-radius: 2px; transition: right 0.25s ease;
}
.vnav-links a:hover::after, .vnav-links a.active::after { right: 0; }
.vnav-links a:hover, .vnav-links a.active { color: var(--ink); }
/* Special highlighted nav link (e.g. Builders) */
.vnav-links a.nav-spark{
  background: linear-gradient(90deg, var(--violet), var(--magenta));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 750;
}
.vnav-links a.nav-spark::before{
  content: '\2726'; -webkit-text-fill-color: var(--magenta);
  margin-right: 0.28rem; font-size: 0.72rem; vertical-align: middle; opacity: 0.9;
}
.vnav-links a.nav-spark:hover{ filter: brightness(1.15); }
.vnav-actions { display: flex; gap: 0.75rem; align-items: center; }

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }
.page { padding-top: 68px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--violet);
  background: color-mix(in srgb, var(--violet) 14%, transparent);
  border: 2px solid color-mix(in srgb, var(--violet) 30%, transparent);
  padding: 0.3rem 0.9rem; border-radius: var(--r-pill);
}

/* ============================================================
   CARDS — chunky sticker style
   ============================================================ */
.vcard {
  background: var(--card);
  border: 2px solid var(--border-2);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  transition: transform 0.25s var(--ease-bounce), box-shadow 0.25s var(--ease), border-color 0.25s;
}
.vcard:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
  border-color: var(--border-2);
}

/* Colored accent cards */
.vcard-violet { border-color: var(--violet); }
.vcard-magenta { border-color: var(--magenta); }
.vcard-lime { border-color: color-mix(in srgb, var(--lime) 60%, var(--border-2)); }
.vcard-cyan { border-color: var(--cyan); }

/* ============================================================
   MESH BACKGROUND (hero signature)
   ============================================================ */
.mesh-bg {
  position: absolute; inset: 0;
  background: var(--grad-hero);
  pointer-events: none; z-index: 0;
}

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.reveal.vis { opacity: 1; transform: translateY(0); }

/* ============================================================
   FOOTER
   ============================================================ */
.vfooter {
  background: var(--bg-2);
  border-top: 2px solid var(--border);
  padding: 3.5rem 1.5rem 2rem;
  margin-top: 4rem;
}
.vfooter-grid {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; gap: 2rem;
}
.vfooter-brand p { color: var(--ink-dim); font-size: 0.9rem; margin-top: 0.75rem; max-width: 280px; }
.vfooter-col-title { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-faint); margin-bottom: 1rem; }
.vfooter-links { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.vfooter-links a { font-size: 0.9rem; color: var(--ink-dim); transition: color 0.2s; }
.vfooter-links a:hover { color: var(--violet); }
.vfooter-bottom {
  max-width: var(--maxw); margin: 2.5rem auto 0; padding-top: 1.5rem;
  border-top: 2px solid var(--border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  font-size: 0.82rem; color: var(--ink-faint); font-family: var(--font-mono);
}
.vfooter-legal { display: flex; gap: 1.25rem; }
.vfooter-legal a { color: var(--ink-faint); }
.vfooter-legal a:hover { color: var(--violet); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* ===== MOBILE NAV (shared across all pages) ===== */
.menu-btn{
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 4px; padding: 0.3rem;
}
.menu-btn span{ width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: 0.2s; }
.mobile-menu{
  display: none; position: fixed; top: var(--nav-h, 68px); left: 0; right: 0;
  background: var(--bg); border-bottom: 2px solid var(--border);
  padding: 1.25rem 1.5rem; flex-direction: column; gap: 0.9rem; z-index: 9999;
  box-shadow: 0 12px 30px rgba(0,0,0,0.18);
}
.mobile-menu.open{ display: flex; }
.mobile-menu a{
  font-family: var(--font-display, 'Inter', sans-serif); font-weight: 650;
  font-size: 1rem; color: var(--ink-dim); padding: 0.3rem 0;
}
.mobile-menu a:hover{ color: var(--ink); }
.mobile-menu a.nav-spark{
  background: linear-gradient(90deg, var(--violet), var(--magenta));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.mobile-menu .btn{ margin-top: 0.25rem; }
/* Dashboard / auth buttons in the mobile menu: align left like the nav links,
   with a slight left padding so they sit a touch indented and read clearly. */
.mobile-menu .btn.btn-primary,
.mobile-menu .btn.btn-ghost{
  text-align: left; justify-content: flex-start; padding-left: 0.85rem;
}
/* Light theme: make the Dashboard / Sign out text dark so it's readable */
html[data-theme="light"] .mobile-menu a{ color: #1a1a1f; }
html[data-theme="light"] .mobile-menu .btn.btn-ghost{ color: #1a1a1f; }
/* Dashboard primary CTA stays white on the violet button in light theme */
html[data-theme="light"] .mobile-menu a.btn.btn-primary{ color: #ffffff; }

@media (max-width: 860px) {
  .vnav-links { display: none !important; }
  .menu-btn { display: flex !important; }
  .vnav-actions .btn { display: none; }
  .vnav-actions .menu-btn { display: flex !important; }
  .vfooter-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 520px) {
  .vfooter-grid { grid-template-columns: 1fr; }
  .vfooter-bottom { flex-direction: column; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}