/* ============================================================
   TipsHedge Design System V3 — shared.css
   Cinematic · Multi-layer depth · Frosted glass
   ============================================================ */

/* --- Reset & Base ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* V3 Brand palette — multi-layer depth, NOT flat black */
  --bg:          #060B16;
  --bg-raised:   #0A1020;
  --card:        #0E1628;
  --card-raised: #121D35;
  --card-hover:  #152240;
  --surface:     #0B1222;
  --border:      #1A2B48;
  --border-light:#253A5C;
  --border-glow: rgba(0,206,209,0.12);

  --cyan:        #00CED1;
  --cyan-bright: #20E8EB;
  --cyan-glow:   rgba(0,206,209,0.2);
  --cyan-dim:    rgba(0,206,209,0.07);
  --cyan-surface:rgba(0,206,209,0.04);

  --gold:        #F0B90B;
  --gold-bright: #FFD54F;
  --gold-glow:   rgba(240,185,11,0.15);
  --gold-dim:    rgba(240,185,11,0.06);

  --green:       #22C55E;
  --green-bright:#34D673;
  --green-glow:  rgba(34,197,94,0.15);

  --red:         #EF4444;
  --red-glow:    rgba(239,68,68,0.12);

  --text:        #E8ECF1;
  --text-bright: #F8FAFC;
  --muted:       #7B8FA8;
  --faint:       #475673;

  /* Legacy aliases (keep existing pages working) */
  --bg-main:     var(--bg);
  --bg-card:     var(--card);
  --bg-surface:  var(--surface);
  --bg-hover:    var(--card-hover);
  --cyan-dim-legacy: #1680a8;
  --green-dim:   #16a34a;
  --green-cta:   #10b981;
  --orange-live: #f97316;
  --red-dim:     #dc2626;
  --yellow:      #facc15;
  --text-muted:  var(--muted);
  --glass:       rgba(14,22,40,0.72);
  --glass-border:rgba(0,206,209,0.15);

  /* Typography */
  --font-display: 'Bebas Neue', sans-serif;
  --font-body:    'Barlow', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Spacing scale */
  --sp-1:  4px;  --sp-2:  8px;  --sp-3: 12px;
  --sp-4: 16px;  --sp-5: 20px;  --sp-6: 24px;
  --sp-8: 32px;  --sp-10: 40px; --sp-12: 48px;
  --sp-16: 64px; --sp-20: 80px; --sp-24: 96px;

  /* Radius */
  --r-sm: 6px; --r-md: 10px; --r-lg: 16px; --r-xl: 20px; --r-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(.16,1,.3,1);
  --ease-in-out: cubic-bezier(.65,0,.35,1);
  --ease-spring: cubic-bezier(.4,0,.2,1);
  --dur-fast: .15s;
  --dur-mid: .3s;
  --dur-slow: .5s;

  /* Layout */
  --max-w: 1200px;
  --max-w-narrow: 720px;
  --nav-h: 64px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }

/* --- Scrollbar -------------------------------------------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan); }

/* --- Layout Utilities ------------------------------------- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--sp-6); }
.container-narrow { width: 100%; max-width: var(--max-w-narrow); margin: 0 auto; padding: 0 var(--sp-6); }
.section { padding: var(--sp-20) 0; }
.section-sm { padding: var(--sp-12) 0; }

/* --- Typography ------------------------------------------- */
h1, h2, h3, h4, h5 { font-family: var(--font-display); font-weight: 400; letter-spacing: .04em; line-height: 1.1; text-transform: uppercase; }
h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 2rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

.mono { font-family: var(--font-mono); }
.text-cyan { color: var(--cyan); }
.text-green { color: var(--green); }
.text-red { color: var(--red); }
.text-gold { color: var(--gold); }
.text-muted { color: var(--muted); }
.text-center { text-align: center; }
.text-sm { font-size: .875rem; }
.text-xs { font-size: .75rem; }
.text-lg { font-size: 1.125rem; }

.label { font-family: var(--font-body); font-size: .75rem; font-weight: 500; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.stat-num { font-family: var(--font-mono); font-weight: 700; font-size: 1.5rem; color: var(--text); }

/* --- Buttons ---------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  font-family: var(--font-body); font-weight: 600; font-size: .9rem;
  border-radius: var(--r-md);
  transition: all var(--dur-mid) var(--ease-spring);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), #00B8BB);
  color: var(--bg);
  box-shadow: 0 4px 20px rgba(0,206,209,.25);
}
.btn-primary:hover {
  box-shadow: 0 8px 32px rgba(0,206,209,.4);
  transform: translateY(-1px);
}
.btn-primary:active { transform: scale(.97); }
.btn-secondary {
  background: var(--card-raised);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--cyan); color: var(--cyan);
  background: var(--cyan-dim);
}
.btn-green {
  background: linear-gradient(135deg, var(--green), var(--green-bright));
  color: var(--bg);
  box-shadow: 0 4px 20px var(--green-glow);
}
.btn-green:hover {
  box-shadow: 0 8px 32px rgba(34,197,94,.4);
  transform: translateY(-1px);
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold), #C48A09);
  color: var(--bg);
  box-shadow: 0 4px 20px var(--gold-glow);
}
.btn-gold:hover {
  box-shadow: 0 8px 32px rgba(240,185,11,.4);
  transform: translateY(-1px);
}
.btn-lg { padding: var(--sp-4) var(--sp-8); font-size: 1rem; border-radius: var(--r-lg); }
.btn-sm { padding: var(--sp-2) var(--sp-4); font-size: .8rem; }
.btn-full { width: 100%; }

/* --- Cards ------------------------------------------------ */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition: border-color var(--dur-mid) var(--ease-spring), box-shadow var(--dur-mid) var(--ease-spring), transform var(--dur-mid) var(--ease-spring);
}
.card:hover { border-color: var(--border-light); }

.glass-card {
  background: rgba(14,22,40,0.72);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
}

.card-glow-cyan { box-shadow: 0 0 40px var(--cyan-glow); border-color: rgba(0,206,209,.2); }
.card-glow-green { box-shadow: 0 0 24px var(--green-glow); border-color: rgba(34,197,94,.2); }
.card-glow-gold { box-shadow: 0 0 24px var(--gold-glow); border-color: rgba(240,185,11,.2); }

/* V3 card with top accent line */
.card-accent::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  border-radius: inherit;
}
.card-accent-cyan::before { background: linear-gradient(90deg, transparent, var(--cyan), transparent); }
.card-accent-gold::before { background: linear-gradient(90deg, transparent, var(--gold), transparent); }
.card-accent-green::before { background: linear-gradient(90deg, transparent, var(--green), transparent); }

/* --- V3 Ambient Orbs ------------------------------------- */
.ambient-orb {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(60px);
}
.ambient-orb-cyan {
  width: 400px; height: 400px;
  top: -200px; left: 50%; transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(0,206,209,0.05) 0%, rgba(0,206,209,0.015) 40%, transparent 70%);
  animation: breathe 10s ease-in-out infinite;
}
.ambient-orb-gold {
  width: 300px; height: 300px;
  bottom: -100px; right: -100px;
  background: radial-gradient(circle, rgba(240,185,11,0.025) 0%, transparent 70%);
  animation: breathe 12s ease-in-out infinite reverse;
}

/* --- V3 Sparkle Dots ------------------------------------- */
.sparkle-dot {
  position: absolute;
  width: 2px; height: 2px;
  border-radius: 50%;
  background: var(--cyan);
  animation: sparkle 3s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}
.sparkle-dot.gold { background: var(--gold); }

/* --- Navigation ------------------------------------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(6,11,22,.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--dur-mid) var(--ease-spring);
  overflow: visible;
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 var(--sp-6);
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.nav-logo { display: flex; align-items: center; gap: var(--sp-3); text-decoration: none; }
.nav-logo img { height: 36px; width: auto; }
.nav-logo-text { font-family: var(--font-display); font-size: 1.4rem; letter-spacing: .06em; }
.nav-links { display: flex; align-items: center; gap: var(--sp-6); }
.nav-link {
  font-size: .875rem; font-weight: 500; color: var(--muted);
  transition: color var(--dur-fast);
  text-decoration: none;
}
.nav-link:hover, .nav-link.active { color: var(--cyan); }
.nav-cta {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-2) var(--sp-5);
  background: linear-gradient(135deg, var(--cyan), #00B8BB);
  color: var(--bg);
  font-weight: 600; font-size: .8rem;
  border-radius: var(--r-md);
  transition: all var(--dur-mid) var(--ease-spring);
  box-shadow: 0 2px 12px rgba(0,206,209,.2);
}
.nav-cta:hover { box-shadow: 0 4px 20px rgba(0,206,209,.35); transform: translateY(-1px); }

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  padding: 11px; cursor: pointer;
  min-width: 44px; min-height: 44px;
  align-items: center; justify-content: center;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--text); transition: all var(--dur-mid) var(--ease-spring);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-mobile {
  position: fixed;
  top: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
  left: 0; right: 0; bottom: 0;
  background: rgba(6,11,22,.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: var(--sp-5) var(--sp-6) calc(env(safe-area-inset-bottom, 0px) + 80px);
  flex-direction: column; gap: var(--sp-1);
  z-index: 250;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--dur-mid) var(--ease-spring),
              opacity var(--dur-mid) var(--ease-spring),
              visibility var(--dur-mid);
  display: flex;
}
.nav-mobile.open {
  transform: translateX(0);
  opacity: 1;
  visibility: visible;
}
.nav-mobile a {
  font-size: .95rem; font-weight: 500; color: var(--text);
  padding: var(--sp-3) var(--sp-2);
  border-bottom: 1px solid var(--border);
  transition: color var(--dur-fast), text-shadow var(--dur-fast);
  flex-shrink: 0;
}
.nav-mobile a:hover {
  color: var(--cyan);
  text-shadow: 0 0 12px rgba(0,206,209,.3);
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}

/* --- Page wrapper ----------------------------------------- */
.page-content { padding-top: calc(var(--nav-h) + env(safe-area-inset-top, 0px)); }

/* --- Grid ------------------------------------------------- */
.grid { display: grid; gap: var(--sp-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-2-mobile { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

/* --- Flex ------------------------------------------------- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--sp-1); }
.gap-2 { gap: var(--sp-2); }
.gap-3 { gap: var(--sp-3); }
.gap-4 { gap: var(--sp-4); }
.gap-6 { gap: var(--sp-6); }
.gap-8 { gap: var(--sp-8); }

/* --- Forms ------------------------------------------------ */
.input {
  width: 100%; padding: var(--sp-3) var(--sp-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--text); font-size: .95rem;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
  outline: none;
}
.input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0,206,209,.1), 0 0 20px rgba(0,206,209,.08);
}
.input::placeholder { color: var(--muted); }

.form-group { display: flex; flex-direction: column; gap: var(--sp-2); }
.form-label { font-size: .8rem; font-weight: 500; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.form-error { font-size: .8rem; color: var(--red); }

/* --- Tabs ------------------------------------------------- */
.tabs {
  display: flex; gap: var(--sp-1);
  background: var(--surface);
  padding: var(--sp-1);
  border-radius: var(--r-md);
}
.tab {
  flex: 1; padding: var(--sp-3) var(--sp-4);
  font-size: .875rem; font-weight: 600;
  color: var(--muted);
  border-radius: var(--r-sm);
  text-align: center;
  transition: all var(--dur-mid) var(--ease-spring);
  cursor: pointer;
}
.tab.active {
  background: var(--card); color: var(--cyan);
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
}
.tab:hover:not(.active) { color: var(--text); }

/* --- Badges ----------------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: var(--sp-1);
  padding: var(--sp-1) var(--sp-3);
  font-size: .7rem; font-weight: 600;
  border-radius: var(--r-full);
  text-transform: uppercase; letter-spacing: .04em;
}
.badge-green { background: rgba(34,197,94,.12); color: var(--green); border: 1px solid rgba(34,197,94,.2); }
.badge-red { background: rgba(239,68,68,.12); color: var(--red); border: 1px solid rgba(239,68,68,.2); }
.badge-cyan { background: rgba(0,206,209,.1); color: var(--cyan); border: 1px solid rgba(0,206,209,.15); }
.badge-gold { background: var(--gold-dim); color: var(--gold); border: 1px solid rgba(240,185,11,.15); }
.badge-muted { background: rgba(107,122,149,.1); color: var(--muted); border: 1px solid rgba(107,122,149,.15); }

/* --- Split Card (Tip Result) ------------------------------ */
.split-card {
  display: flex; border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid var(--border);
  transition: border-color var(--dur-mid) var(--ease-spring), transform var(--dur-mid) var(--ease-spring);
}
.split-card:hover { transform: translateY(-2px); }
.split-card.win { border-color: rgba(34,197,94,.25); }
.split-card.win:hover { border-color: rgba(34,197,94,.4); }
.split-card.loss { border-color: rgba(239,68,68,.15); opacity: .75; }
.split-card.loss:hover { opacity: .9; border-color: rgba(239,68,68,.3); }
.split-card.pending { border-color: rgba(250,204,21,.15); }

.split-side {
  flex: 1; display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  background: var(--card);
  position: relative;
}
.split-side:first-child { border-right: 1px solid var(--border); }
.split-vs {
  position: absolute; right: -14px; top: 50%; transform: translateY(-50%);
  width: 28px; height: 28px;
  background: var(--surface); border: 1px solid var(--border-light);
  border-radius: var(--r-full);
  display: flex; align-items: center; justify-content: center;
  font-size: .65rem; font-weight: 700; color: var(--muted);
  z-index: 2;
}
.split-center {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface);
  min-width: 100px;
}
.split-team-logo {
  width: 36px; height: 36px; border-radius: var(--r-sm);
  object-fit: contain; background: rgba(255,255,255,.05);
  padding: 4px;
}
.split-team-name { font-weight: 600; font-size: .9rem; line-height: 1.3; }
.split-meta { font-size: .75rem; color: var(--muted); }
.split-result {
  font-family: var(--font-mono); font-weight: 700; font-size: 1.1rem;
}
.split-result.win { color: var(--green); }
.split-result.loss { color: var(--red); }
.split-result.pending { color: var(--yellow); }

@media (max-width: 600px) {
  .split-card { flex-direction: column; }
  .split-side:first-child { border-right: none; border-bottom: 1px solid var(--border); }
  .split-vs { right: 50%; top: auto; bottom: -14px; transform: translateX(50%); }
}

/* --- Stat Bar --------------------------------------------- */
.stat-bar {
  display: flex; flex-wrap: wrap; gap: var(--sp-6);
  padding: var(--sp-5) var(--sp-6);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}
.stat-item { display: flex; flex-direction: column; gap: var(--sp-1); }
.stat-item .label { font-size: .7rem; }

/* --- Accordion (FAQ) -------------------------------------- */
.accordion { border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-item:last-child { border-bottom: none; }
.accordion-trigger {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: var(--sp-5) var(--sp-6);
  font-family: var(--font-body); font-size: 1rem; font-weight: 600;
  color: var(--text); background: var(--card);
  text-align: left; cursor: pointer;
  transition: background var(--dur-fast);
}
.accordion-trigger:hover { background: var(--card-hover); }
.accordion-trigger .icon {
  width: 20px; height: 20px; flex-shrink: 0;
  transition: transform var(--dur-mid) var(--ease-spring);
}
.accordion-item.open .accordion-trigger .icon { transform: rotate(180deg); }
.accordion-content {
  max-height: 0; overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-spring);
}
.accordion-content-inner {
  padding: 0 var(--sp-6) var(--sp-5);
  color: var(--muted); line-height: 1.7; font-size: .95rem;
}

/* --- Pricing Cards ---------------------------------------- */
.pricing-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  display: flex; flex-direction: column;
  position: relative;
  transition: border-color var(--dur-mid), box-shadow var(--dur-mid), transform var(--dur-mid);
}
.pricing-card:hover { transform: translateY(-4px); }
.pricing-card.featured {
  border-color: rgba(0,206,209,.3);
  box-shadow: 0 0 40px var(--cyan-glow);
}
.pricing-card .price {
  font-family: var(--font-mono); font-size: 2.5rem; font-weight: 700;
  color: var(--text);
}
.pricing-card .price-period { font-size: .9rem; color: var(--muted); font-weight: 400; }
.pricing-feature {
  display: flex; align-items: flex-start; gap: var(--sp-3);
  padding: var(--sp-2) 0; font-size: .9rem;
}
.pricing-feature .check { color: var(--green); font-weight: 700; flex-shrink: 0; }
.pricing-feature .cross { color: var(--muted); flex-shrink: 0; opacity: .4; }
.pricing-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--cyan), #00B8BB);
  color: var(--bg);
  font-weight: 700; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em;
  padding: var(--sp-1) var(--sp-4);
  border-radius: var(--r-full);
  box-shadow: 0 2px 12px rgba(0,206,209,.3);
}

/* --- Section Headers -------------------------------------- */
.section-header {
  text-align: center;
  margin-bottom: var(--sp-12);
}
.section-header h2 { margin-bottom: var(--sp-3); }
.section-header p { color: var(--muted); max-width: 560px; margin: 0 auto; }
.section-header .label { margin-bottom: var(--sp-3); display: block; }

/* --- Trust Badges ----------------------------------------- */
.trust-row {
  display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-6);
  padding: var(--sp-6) 0;
}
.trust-badge {
  display: flex; align-items: center; gap: var(--sp-2);
  font-size: .8rem; color: var(--muted);
}
.trust-badge svg { width: 16px; height: 16px; color: var(--green); }

/* --- Premium & Live badges ------------------------------ */
.badge-premium {
  background: var(--gold-dim); color: var(--gold);
  border: 1px solid rgba(240,185,11,.25);
  font-size: .65rem; font-weight: 700; letter-spacing: .06em;
  padding: 2px 8px; border-radius: 10px;
}
.badge-live {
  background: rgba(249,115,22,.12); color: var(--orange-live);
  border: 1px solid rgba(249,115,22,.25);
  font-size: .65rem; font-weight: 700; letter-spacing: .06em;
  padding: 2px 8px; border-radius: 10px;
  animation: livePulse 1.5s ease-in-out infinite;
}
@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .6; }
}

/* --- App Tab Bar (V3 frosted glass) ---------------------- */
.app-tab-bar {
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 200;
  height: calc(60px + env(safe-area-inset-bottom, 0px));
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: rgba(6,11,22,.94);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid rgba(26,43,72,.4);
  display: flex; align-items: center; justify-content: space-around;
}
.tab-item {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px;
  padding: 6px 0 4px;
  text-decoration: none;
  color: var(--faint);
  font-size: .6rem; font-weight: 600; letter-spacing: .04em;
  position: relative;
  -webkit-tap-highlight-color: transparent;
  transition: color .25s var(--ease-spring);
}
.tab-item.active { color: var(--cyan); }
.tab-item:hover { color: var(--muted); }
.tab-item.active::before {
  content: '';
  position: absolute;
  top: -1px; left: 20%; right: 20%;
  height: 2px;
  background: var(--cyan);
  border-radius: 0 0 2px 2px;
  box-shadow: 0 2px 12px rgba(0,206,209,.5);
}
/* Gold glow for challenge page */
.app-tab-bar.gold-active .tab-item.active { color: var(--gold); }
.app-tab-bar.gold-active .tab-item.active::before {
  background: var(--gold);
  box-shadow: 0 2px 12px rgba(240,185,11,.5);
}

.tab-icon-svg {
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
}
.tab-icon-svg svg {
  width: 20px; height: 20px;
  display: block;
  transition: all .25s var(--ease-spring);
}
.tab-item.active .tab-icon-svg svg {
  color: var(--cyan);
  filter: drop-shadow(0 0 8px rgba(0,206,209,.5));
}
.app-tab-bar.gold-active .tab-item.active .tab-icon-svg svg {
  color: var(--gold);
  filter: drop-shadow(0 0 8px rgba(240,185,11,.5));
}

@media (min-width: 769px) {
  .app-tab-bar { display: none; }
}
@media (max-width: 768px) {
  body.has-tab-bar { padding-bottom: calc(60px + env(safe-area-inset-bottom, 0px)); }
  body.has-tab-bar .page-content { padding-bottom: 100px; }
}

.has-tab-bar .footer {
  padding-bottom: calc(var(--sp-8) + 64px + env(safe-area-inset-bottom, 0px));
}

/* --- Footer ----------------------------------------------- */
.footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: var(--sp-16) 0 var(--sp-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-10);
  margin-bottom: var(--sp-12);
}
.footer-brand p { color: var(--muted); font-size: .9rem; margin-top: var(--sp-4); line-height: 1.6; }
.footer-col h4 { font-family: var(--font-body); font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: var(--sp-4); }
.footer-col a { display: block; font-size: .9rem; color: var(--muted); padding: var(--sp-1) 0; transition: color var(--dur-fast); }
.footer-col a:hover { color: var(--cyan); }
.footer-social { display: flex; gap: var(--sp-4); margin-top: var(--sp-4); }
.footer-social a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-md); background: var(--surface);
  border: 1px solid var(--border); color: var(--muted);
  transition: all var(--dur-mid);
}
.footer-social a:hover { color: var(--cyan); border-color: var(--cyan); background: var(--cyan-dim); }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: var(--sp-6);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--sp-4);
  font-size: .8rem; color: var(--muted);
}
.footer-gamble {
  background: rgba(239,68,68,.06);
  border: 1px solid rgba(239,68,68,.12);
  border-radius: var(--r-md);
  padding: var(--sp-4) var(--sp-5);
  margin-bottom: var(--sp-8);
  font-size: .8rem; color: var(--muted); line-height: 1.6;
}
.footer-gamble strong { color: var(--red); }

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   V3 ANIMATIONS
   ============================================================ */

/* Breathe — ambient orb pulsing */
@keyframes breathe {
  0%, 100% { opacity: .45; transform: scale(1); }
  50% { opacity: .9; transform: scale(1.08); }
}

/* Sparkle — micro-dot twinkle */
@keyframes sparkle {
  0%, 100% { opacity: .15; }
  50% { opacity: 1; }
}

/* Float — gentle vertical bob */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Shimmer — background sweep */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Slide Up — entrance reveal */
@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Scale In */
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}

/* Fade In */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Glow Pulse — box-shadow breathing */
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 30px rgba(0,206,209,.15), 0 0 60px rgba(0,206,209,.05); }
  50% { box-shadow: 0 0 50px rgba(0,206,209,.25), 0 0 100px rgba(0,206,209,.1); }
}
@keyframes glowPulseGold {
  0%, 100% { box-shadow: 0 0 30px rgba(240,185,11,.15), 0 0 60px rgba(240,185,11,.05); }
  50% { box-shadow: 0 0 50px rgba(240,185,11,.25), 0 0 100px rgba(240,185,11,.1); }
}

/* Radar Sweep — for edge finder */
@keyframes radarSweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Radar Ping — expanding ring */
@keyframes radarPing {
  0% { transform: scale(0.3); opacity: 0.4; }
  70% { opacity: 0.08; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* Spotlight Sweep */
@keyframes spotlightSweep {
  0% { transform: translateX(-150%) rotate(-18deg); }
  100% { transform: translateX(300%) rotate(-18deg); }
}

/* Orb float paths */
@keyframes orbFloat1 {
  0% { transform: translate(0,0) scale(1); }
  33% { transform: translate(20px,-30px) scale(1.1); }
  66% { transform: translate(-15px,10px) scale(0.95); }
  100% { transform: translate(0,0) scale(1); }
}
@keyframes orbFloat2 {
  0% { transform: translate(0,0) scale(1); }
  33% { transform: translate(-25px,15px) scale(0.9); }
  66% { transform: translate(10px,-20px) scale(1.05); }
  100% { transform: translate(0,0) scale(1); }
}

/* Ring Pulse — expanding border ring */
@keyframes ringPulse {
  0% { transform: scale(0.8); opacity: 0.3; }
  50% { transform: scale(1.15); opacity: 0.08; }
  100% { transform: scale(0.8); opacity: 0.3; }
}

/* Pulse — icon/dot emphasis */
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: .5; }
}

/* Particle Drift — rising particles */
@keyframes particleDrift {
  0% { transform: translateY(0) translateX(0); opacity: .3; }
  50% { opacity: 1; }
  100% { transform: translateY(-80px) translateX(20px); opacity: 0; }
}

/* Card Entry */
@keyframes cardEntry {
  from { opacity: 0; transform: translateY(40px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Progress Glow */
@keyframes progressGlow {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2) drop-shadow(0 0 8px rgba(0,206,209,.4)); }
}
@keyframes progressGlowGold {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2) drop-shadow(0 0 8px rgba(240,185,11,.4)); }
}

/* Bar grow — for charts */
@keyframes barGrow {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

/* Gradient line — animated */
@keyframes gradLine {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* Logo glow */
@keyframes logoGlow {
  0%, 100% { filter: drop-shadow(0 0 24px rgba(0,206,209,.4)) drop-shadow(0 0 60px rgba(0,206,209,.15)); }
  50% { filter: drop-shadow(0 0 40px rgba(0,206,209,.6)) drop-shadow(0 0 80px rgba(0,206,209,.25)); }
}

/* Button shine sweep */
@keyframes buttonShine {
  0% { left: -100%; }
  100% { left: 200%; }
}

/* Spin */
@keyframes spin { to { transform: rotate(360deg); } }

/* Pulse glow (legacy) */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(0,206,209,.2); }
  50% { box-shadow: 0 0 40px rgba(0,206,209,.4); }
}
.pulse-glow { animation: pulse-glow 3s ease-in-out infinite; }

/* Stagger In */
@keyframes staggerIn {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Green Pulse — text-shadow */
@keyframes greenPulse {
  0%, 100% { text-shadow: 0 0 20px rgba(34,197,94,.2); }
  50% { text-shadow: 0 0 40px rgba(34,197,94,.4); }
}

/* Trophy Float */
@keyframes trophyFloat {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-8px) rotate(2deg); }
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0; transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-spring), transform var(--dur-slow) var(--ease-spring);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.fade-in {
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-spring);
}
.fade-in.visible { opacity: 1; }

.stagger-1 { transition-delay: .05s; }
.stagger-2 { transition-delay: .1s; }
.stagger-3 { transition-delay: .15s; }
.stagger-4 { transition-delay: .2s; }
.stagger-5 { transition-delay: .25s; }
.stagger-6 { transition-delay: .3s; }

/* Shimmer utility */
.shimmer {
  background: linear-gradient(90deg, transparent 0%, rgba(0,206,209,.06) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: shimmer 3s ease-in-out infinite;
}

/* --- Skeleton loaders ------------------------------------- */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--card-hover) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--r-sm);
}
.skeleton-text { height: 14px; width: 60%; }
.skeleton-heading { height: 28px; width: 40%; }
.skeleton-card { height: 120px; width: 100%; border-radius: var(--r-lg); }

/* --- Responsive page padding ------------------------------ */
@media (max-width: 768px) {
  .section { padding: var(--sp-10) 0; }
  .section-sm { padding: var(--sp-6) 0; }
  .container, .container-narrow { padding: 0 var(--sp-4); }
  h1 { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  h2 { font-size: clamp(1.5rem, 5vw, 2rem); }
  .section-header { margin-bottom: var(--sp-8); }
  .section-glow-top::before { height: 1px; }
}

/* --- Utility ---------------------------------------------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.hidden { display: none !important; }
.relative { position: relative; }
.overflow-hidden { overflow: hidden; }
.w-full { width: 100%; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-2 { margin-top: var(--sp-2); }
.mt-4 { margin-top: var(--sp-4); }
.mt-6 { margin-top: var(--sp-6); }
.mt-8 { margin-top: var(--sp-8); }
.mb-2 { margin-bottom: var(--sp-2); }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-6 { margin-bottom: var(--sp-6); }
.mb-8 { margin-bottom: var(--sp-8); }
.py-2 { padding-top: var(--sp-2); padding-bottom: var(--sp-2); }
.py-4 { padding-top: var(--sp-4); padding-bottom: var(--sp-4); }
.rounded { border-radius: var(--r-md); }
.border-t { border-top: 1px solid var(--border); }
.opacity-60 { opacity: .6; }
.pointer-events-none { pointer-events: none; }

/* --- Loading spinner -------------------------------------- */
.spinner {
  width: 24px; height: 24px;
  border: 2px solid var(--border-light);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}

/* --- Toast / Notification --------------------------------- */
.toast {
  position: fixed; bottom: var(--sp-6); right: var(--sp-6);
  padding: var(--sp-4) var(--sp-6);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  font-size: .9rem; z-index: 1000;
  transform: translateY(120%);
  transition: transform var(--dur-mid) var(--ease-spring);
}
.toast.show { transform: translateY(0); }
.toast.success { border-color: rgba(34,197,94,.3); }
.toast.error { border-color: rgba(239,68,68,.3); }