/* ============================================================
   GymFlow — Design System (Brutal Luxury V2)
   Design por: FitTrack Pro Architecture
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Barlow+Condensed:wght@400;600;700;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;600;700&display=swap');

:root {
  /* Colors */
  --bg-void: #05050A;
  --bg-base: #0A0A0F;
  --bg-card: #13131E;
  --bg-card2: #1A1A28;
  --bg-input: #16161F;
  --color-border: rgba(255,255,255,.08);

  --fire: #FF6B35;
  --fire2: #FF8C42;
  --fire3: #FFB347;
  --plasma: #7C3AED;
  --plasma2: #A78BFA;
  --neon: #10B981;
  --neon2: #34D399;
  --amber: #F59E0B;
  --amber2: #FBBF24;
  --red: #EF4444;
  --blue: #3B82F6;

  --t1: #F1F5F9;
  --t2: #CBD5E1;
  --t3: #64748B;
  --t4: #334155;

  --b1: rgba(255,255,255,.04);
  --b2: rgba(255,255,255,.08);
  --b3: rgba(255,255,255,.14);
  --ba: rgba(255,107,53,.35);

  /* Gradients */
  --g-fire: linear-gradient(135deg, #FF6B35, #FF8C42, #FFB347);
  --g-plasma: linear-gradient(135deg, #7C3AED, #A78BFA);
  --g-card: linear-gradient(145deg, #13131E, #0F0F18);
  --g-pr: linear-gradient(135deg, #F59E0B, #FBBF24, #FDE68A);
  --g-neon: linear-gradient(135deg, #059669, #10B981);

  /* Shadows */
  --s-card: 0 4px 24px rgba(0,0,0,.5), 0 1px 0 rgba(255,255,255,.04) inset;
  --s-fire: 0 8px 32px rgba(255,107,53,.35), 0 2px 8px rgba(255,107,53,.2);
  --s-fire-lg: 0 16px 60px rgba(255,107,53,.45), 0 4px 16px rgba(255,107,53,.3);
  --s-neon: 0 0 20px rgba(16,185,129,.4), 0 0 60px rgba(16,185,129,.15);

  /* Fonts */
  --font-display: 'Bebas Neue', cursive;
  --font-cond: 'Barlow Condensed', sans-serif;
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* ── Reset & Base ── */
* {
  margin: 0; padding: 0; box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  background: var(--bg-void);
  color: var(--t1);
  font-family: var(--font-sans);
  min-height: 100vh;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* ── Background Effects ── */
body::before {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background: 
    radial-gradient(ellipse 600px 600px at 10% 20%, rgba(255,107,53,.06) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 90% 70%, rgba(124,58,237,.05) 0%, transparent 70%),
    radial-gradient(ellipse 400px 400px at 50% 90%, rgba(16,185,129,.03) 0%, transparent 70%);
}

body::after {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: .6;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.035'/%3E%3C/svg%3E");
  background-size: 256px;
}

/* ── Typography Utilities ── */
.bebas { font-family: var(--font-display); letter-spacing: .04em; }
.cond { font-family: var(--font-cond); letter-spacing: .06em; }
.mono { font-family: var(--font-mono); }
.label { font-family: var(--font-cond); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--t3); display: block; }

/* ── Layout ── */
.wrap { position: relative; z-index: 1; max-width: 480px; margin: 0 auto; min-height: 100vh; padding-bottom: 120px; }
.main-content { padding: 20px; }

/* ── Top Header ── */
.top-bar {
  padding: 20px 20px 12px; display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; background: rgba(5,5,10,.94);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  z-index: 100; border-bottom: 1px solid var(--b1);
}
.logo { font-family: var(--font-display); font-size: 28px; letter-spacing: .1em; background: var(--g-fire); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hbtn { width: 38px; height: 38px; border-radius: 11px; background: var(--bg-card); border: 1px solid var(--b2); display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .2s; }
.hbtn:active { transform: scale(.9); }

/* ── Navigation ── */
.nav-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--b2); overflow-x: auto; scrollbar-width: none; padding: 0 20px; background: rgba(5,5,10,.94); }
.nav-tabs::-webkit-scrollbar { display: none; }
.ntab {
  padding: 12px 16px; font-family: var(--font-cond); font-size: 13px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; color: var(--t3); cursor: pointer;
  border: none; background: transparent; border-bottom: 2px solid transparent;
  white-space: nowrap; transition: all .2s; flex-shrink: 0;
}
.ntab.active { color: var(--fire); border-bottom-color: var(--fire); }

.bnav {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 480px; background: rgba(5,5,10,.97);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--b2); display: flex; align-items: stretch; z-index: 100;
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.bni {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px; padding: 10px 4px; cursor: pointer; border: none; background: transparent;
  color: var(--t3); font-family: var(--font-cond); font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em; transition: color .2s;
}
.bni.active { color: var(--fire); }
.bni-ico { font-size: 20px; transition: transform .2s; }
.bni-cta-btn {
  width: 54px; height: 54px; border-radius: 16px; background: var(--g-fire);
  box-shadow: var(--s-fire); display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-top: -18px; border: 3px solid var(--bg-void); transition: all .2s;
}

/* ── Components ── */
.card {
  background: var(--g-card); border: 1px solid var(--b2); border-radius: 20px;
  padding: 20px; box-shadow: var(--s-card); position: relative; overflow: hidden;
  transition: all .25s;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12) 30%, rgba(255,255,255,0.22) 50%, rgba(255,255,255,0.12) 70%, transparent);
}

.mcard {
  background: var(--g-card); border: 1px solid var(--b2); border-radius: 20px;
  padding: 18px 16px; box-shadow: var(--s-card); position: relative; overflow: hidden;
  min-height: 110px; display: flex; flex-direction: column; justify-content: space-between;
}
.mval { font-family: var(--font-display); font-size: 44px; line-height: .9; letter-spacing: .02em; }
.mdelta { display: inline-flex; align-items: center; gap: 3px; font-family: var(--font-cond); font-size: 11px; font-weight: 700; letter-spacing: .06em; padding: 3px 9px; border-radius: 999px; margin-top: 4px; }
.up { background: rgba(16,185,129,.12); color: var(--neon2); border: 1px solid rgba(16,185,129,.2); }
.dn { background: rgba(239,68,68,.12); color: #F87171; border: 1px solid rgba(239,68,68,.2); }

/* ── Metrics Grid ── */
.grid { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: 1fr 1fr; }

/* ── Streak ── */
.streak {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, rgba(255,107,53,.15), rgba(255,180,71,.08));
  border: 1px solid rgba(255,107,53,0.3); border-radius: 999px; padding: 8px 18px;
  font-family: var(--font-cond); font-size: 14px; font-weight: 700; letter-spacing: .06em;
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-sans); font-weight: 700; border: none; cursor: pointer; transition: all .2s;
}
.btn-fire { background: var(--g-fire); color: #fff; border-radius: 14px; padding: 14px 22px; box-shadow: var(--s-fire); }
.btn-fire-xl { background: var(--g-fire); color: #fff; border-radius: 18px; padding: 18px 24px; box-shadow: var(--s-fire); width: 100%; font-size: 17px; font-weight: 800; min-height: 60px; }
.btn-ghost { background: transparent; color: var(--t2); border: 1px solid var(--b3); border-radius: 12px; padding: 12px 18px; }

/* ── Forms ── */
.inp-wrap { display: flex; flex-direction: column; gap: 7px; }
.inp {
  background: var(--bg-input); border: 1.5px solid var(--b2); border-radius: 14px;
  color: var(--t1); font-family: var(--font-mono); font-size: 26px; font-weight: 700;
  text-align: center; padding: 14px 10px; width: 100%; outline: none; transition: all .2s;
}
.inp:focus { border-color: var(--fire); }

/* ── Chart & Progress ── */
.mbar-row { display: flex; align-items: center; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--b1); }
.mdot { width: 8px; height: 8px; border-radius: 50%; }
.mbar-track { flex: 1; height: 5px; background: var(--b2); border-radius: 3px; overflow: hidden; }
.mbar-fill { height: 100%; border-radius: 3px; transition: width 1s; }

/* ── Heatmap ── */
.hmap { display: grid; grid-template-columns: repeat(13, 1fr); gap: 3px; }
.hcell { aspect-ratio: 1; border-radius: 4px; }
.h0 { background: var(--b2); } .h1 { background: rgba(255,107,53,0.25); }
.h2 { background: rgba(255,107,53,0.5); } .h3 { background: rgba(255,107,53,0.75); }
.h4 { background: var(--fire); }

/* ── Search & Filter ── */
.search-wrap { position: relative; margin-bottom: 14px; }
.search {
  background: var(--bg-input); border: 1.5px solid var(--b2); border-radius: 14px;
  padding: 12px 14px 12px 40px; width: 100%; color: var(--t1); font-size: 14px; outline: none;
}
.filters { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; margin-bottom: 16px; }
.fchip { flex-shrink: 0; padding: 7px 16px; border-radius: 999px; font-family: var(--font-cond); font-size: 12px; font-weight: 700; text-transform: uppercase; cursor: pointer; background: var(--bg-card); border: 1px solid var(--b2); color: var(--t3); }
.fchip.active { background: var(--fire); border-color: var(--fire); color: #fff; }

/* ── Badges ── */
.badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 999px; font-family: var(--font-cond); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.b-fire { background: rgba(255,107,53,.12); color: #FF8C55; border: 1px solid rgba(255,107,53,.25); }
.b-neon { background: rgba(16,185,129,.12); color: var(--neon2); border: 1px solid rgba(16,185,129,.25); }

/* ── Section Titles ── */
.sec-title { font-family: var(--font-cond); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .14em; color: var(--t3); margin: 24px 0 12px; display: flex; align-items: center; gap: 10px; }
.sec-title::after { content: ''; flex: 1; height: 1px; background: var(--b2); }

/* ── Animations ── */
@keyframes fade-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.stagger > * { animation: fade-up .3s cubic-bezier(.2,.8,.2,1) both; }
.stagger > *:nth-child(2) { animation-delay: .06s; }
.stagger > *:nth-child(3) { animation-delay: .12s; }

/* Utility space */
.space-y-6 > * + * { margin-top: 24px; }
.space-y-12 > * + * { margin-top: 48px; }