@font-face {
  font-family: 'Vazirmatn';
  src: url('/assets/fonts/Vazirmatn-Variable.woff2') format('woff2-variations'), url('/assets/fonts/Vazirmatn-Variable.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('/assets/fonts/SpaceGrotesk-Variable.ttf') format('truetype-variations'), url('/assets/fonts/SpaceGrotesk-Variable.ttf') format('truetype');
  font-weight: 300 700;
  font-display: swap;
}

/* ===================== Design Tokens ===================== */
:root{
  /* Color */
  --ink:        #0B1220;
  --ink-soft:   #45526B;
  --paper:      #FFFFFF;
  --wash:       #F6FAF9;
  --line:       rgba(11,18,32,0.08);

  --green-600:  #0A8F6C;
  --green-500:  #10B981;
  --green-100:  #E4F7EF;

  --blue-600:   #2054C9;
  --blue-500:   #2E6BE6;
  --blue-100:   #E9F0FE;

  --amber-500:  #F5A623;
  --amber-100:  #FFF3DF;

  --gradient-primary: linear-gradient(135deg, var(--green-500) 0%, var(--blue-500) 100%);
  --gradient-soft:    linear-gradient(135deg, rgba(16,185,129,0.12) 0%, rgba(46,107,230,0.12) 100%);

  /* Glass */
  --glass-bg: rgba(255,255,255,0.6);
  --glass-border: rgba(255,255,255,0.8);
  --glass-shadow: 0 20px 60px -20px rgba(11,18,32,0.18);

  /* Type */
  --font-fa: "Vazirmatn", sans-serif;
  --font-num: "Space Grotesk", "Vazirmatn", sans-serif;

  /* Radius */
  --r-sm: 14px;
  --r-md: 22px;
  --r-lg: 32px;
  --r-pill: 999px;

  /* Motion */
  --ease: cubic-bezier(.22,1,.36,1);
}

*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }

body{
  font-family:var(--font-fa);
  background:var(--paper);
  color:var(--ink);
  direction:rtl;
  text-align:right;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

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

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

.num{ font-family:var(--font-num); font-variant-numeric:tabular-nums; }

/* ===================== Utility ===================== */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--green-600);
  background:var(--green-100);
  padding:7px 16px;
  border-radius:var(--r-pill);
  margin-bottom:18px;
}
.eyebrow.blue{ color:var(--blue-600); background:var(--blue-100); }

.section{ padding:96px 0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(28px,4vw,42px); font-weight:800; letter-spacing:-0.02em; line-height:1.3; }
.section-head p{ color:var(--ink-soft); font-size:17px; margin-top:14px; }
.section.wash{ background:var(--wash); }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:16px 30px;
  border-radius:var(--r-pill);
  font-weight:700;
  font-size:15.5px;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease);
}
.btn-primary{
  background:var(--gradient-primary);
  color:#fff;
  box-shadow:0 14px 30px -10px rgba(16,185,129,0.5);
}
.btn-primary:hover{ transform:translateY(-3px); box-shadow:0 20px 40px -12px rgba(16,185,129,0.55); }
.btn-ghost{
  background:var(--paper);
  color:var(--ink);
  border:1.5px solid var(--line);
}
.btn-ghost:hover{ border-color:var(--green-500); color:var(--green-600); }
.btn-lg{ padding:18px 38px; font-size:16.5px; }

/* Glass card */
.glass{
  background:var(--glass-bg);
  backdrop-filter:blur(20px) saturate(160%);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  border:1px solid var(--glass-border);
  border-radius:var(--r-lg);
  box-shadow:var(--glass-shadow);
}

/* Reveal on scroll */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:translateY(0); }

@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; }
  .reveal{ opacity:1; transform:none; }
}

/* ===================== Nav ===================== */
.nav{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,0.72);
  backdrop-filter:blur(16px) saturate(160%);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid var(--line);
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; height:76px; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:800; font-size:19px; }
.brand-mark{
  width:38px; height:38px; border-radius:12px;
  background:var(--gradient-primary);
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:18px;
}
.nav-links{ display:flex; align-items:center; gap:6px; }
.nav-links a{
  padding:10px 16px; border-radius:var(--r-pill); font-size:14.5px; font-weight:600; color:var(--ink-soft);
  transition:.3s var(--ease);
}
.nav-links a:hover, .nav-links a.active{ color:var(--green-600); background:var(--green-100); }
.nav-cta{ display:flex; align-items:center; gap:10px; }
.nav-toggle{ display:none; }

/* ===================== App Top Bar (mobile only) ===================== */
.app-topbar{
  display:none;
  position:sticky; top:0; z-index:100;
  align-items:center; justify-content:space-between;
  height:60px;
  padding:0 18px;
  padding-top:env(safe-area-inset-top);
  background:rgba(255,255,255,0.85);
  backdrop-filter:blur(16px) saturate(160%);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid var(--line);
}
.app-brand{ display:flex; align-items:center; gap:9px; font-weight:800; font-size:16.5px; }
.app-brand .brand-mark{ width:32px; height:32px; border-radius:10px; font-size:15px; }
.app-topbar-actions{ display:flex; align-items:center; gap:8px; }
.app-icon-btn{
  width:38px; height:38px; border-radius:12px; background:var(--wash);
  display:flex; align-items:center; justify-content:center; font-size:16px;
}
.app-avatar{ background:var(--gradient-primary); color:#fff; font-weight:700; font-size:13px; }

/* ===================== Bottom Tab Bar (mobile app feel) ===================== */
.bottom-nav{
  display:none;
  position:fixed; bottom:0; inset-inline:0; z-index:200;
  background:rgba(255,255,255,0.88);
  backdrop-filter:blur(20px) saturate(160%);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  border-top:1px solid var(--line);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));
  box-shadow:0 -8px 30px -14px rgba(11,18,32,0.18);
}
.bottom-nav-item{
  flex:1;
  display:flex; flex-direction:column; align-items:center; gap:3px;
  padding:6px 2px;
  border-radius:14px;
  color:var(--ink-soft);
  transition:.25s var(--ease);
}
.bottom-nav-item .bn-icon{ font-size:20px; line-height:1; transition:transform .3s var(--ease); }
.bottom-nav-item .bn-label{ font-size:10.5px; font-weight:600; }
.bottom-nav-item.active{ color:var(--green-600); }
.bottom-nav-item.active .bn-icon{ transform:translateY(-2px) scale(1.08); }
.bottom-nav-item.active .bn-label{ font-weight:800; }

@media (max-width:960px){
  .nav-links{ display:none; }
  .nav-toggle{ display:flex; width:42px; height:42px; align-items:center; justify-content:center; border-radius:12px; background:var(--wash); }
  .nav-cta .btn-ghost{ display:none; }

  /* --- حالت اپ‌مانند: نوار دسکتاپ خاموش، نوار اپ روشن --- */
  .desktop-nav{ display:none; }
  .app-topbar{ display:flex; }
  .bottom-nav{ display:flex; }
  .desktop-only{ display:none !important; }

  body{ padding-bottom:calc(70px + env(safe-area-inset-bottom)); }

  .page-hero{ padding-top:28px; }
  .hero{ padding-top:28px; }
}

/* ===================== Hero ===================== */
.hero{
  position:relative;
  padding:72px 0 60px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute; inset:-20% -10% auto -10%; height:640px;
  background:var(--gradient-soft);
  filter:blur(60px);
  z-index:0;
}
.hero-grid{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1.05fr 0.95fr; gap:40px; align-items:center;
}
.hero h1{
  font-size:clamp(34px,5.2vw,58px);
  font-weight:800;
  letter-spacing:-0.03em;
  line-height:1.28;
}
.hero h1 span{
  background:var(--gradient-primary);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.lead{ font-size:18px; color:var(--ink-soft); margin:22px 0 34px; max-width:520px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-trust{ display:flex; gap:26px; margin-top:40px; flex-wrap:wrap; }
.hero-trust div strong{ display:block; font-family:var(--font-num); font-size:22px; font-weight:700; }
.hero-trust div span{ font-size:13px; color:var(--ink-soft); }

/* Energy ring — signature element */
.energy-ring-wrap{ position:relative; display:flex; align-items:center; justify-content:center; }
.energy-ring{ width:100%; max-width:420px; }
.energy-ring svg{ width:100%; height:auto; }
.ring-track{ fill:none; stroke:var(--wash); stroke-width:10; }
.ring-seg{ fill:none; stroke-width:10; stroke-linecap:round; transform-origin:center; }
.ring-seg.protein{ stroke:var(--green-500); }
.ring-seg.carb{ stroke:var(--blue-500); }
.ring-seg.water{ stroke:#61C7FF; }
.ring-seg.focus{ stroke:var(--amber-500); }
.ring-center{ font-family:var(--font-num); }
.ring-center .val{ font-size:44px; font-weight:700; }
.ring-center .lbl{ font-family:var(--font-fa); font-size:13px; color:var(--ink-soft); }
.ring-legend{ display:flex; flex-wrap:wrap; gap:10px 18px; justify-content:center; margin-top:18px; }
.ring-legend li{ display:flex; align-items:center; gap:7px; font-size:13px; color:var(--ink-soft); }
.ring-legend i{ width:9px; height:9px; border-radius:50%; display:inline-block; }

.float-card{
  position:absolute;
  padding:14px 18px;
  display:flex; align-items:center; gap:10px;
  animation:float 5s ease-in-out infinite;
}
.float-card .ico{ width:38px; height:38px; border-radius:11px; display:flex; align-items:center; justify-content:center; font-size:18px; }
.float-card strong{ display:block; font-size:14px; }
.float-card span{ font-size:12px; color:var(--ink-soft); }
.float-card.c1{ top:-6px; right:-10px; animation-delay:0s; }
.float-card.c2{ bottom:6px; left:-24px; animation-delay:1.4s; }
@keyframes float{ 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-12px);} }

@media (max-width:960px){
  .hero-grid{ grid-template-columns:1fr; }
  .float-card{ display:none; }
}

/* ===================== Stats ===================== */
.stats-row{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.stat-card{ padding:30px 24px; text-align:center; }
.stat-card .val{ font-size:34px; font-weight:700; }
.stat-card .lbl{ font-size:14px; color:var(--ink-soft); margin-top:6px; }
@media (max-width:760px){ .stats-row{ grid-template-columns:repeat(2,1fr); } }

/* ===================== Benefits ===================== */
.benefit-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.benefit-card{
  padding:32px 28px;
  transition:transform .4s var(--ease), box-shadow .4s var(--ease);
}
.benefit-card:hover{ transform:translateY(-6px); }
.benefit-ico{
  width:52px; height:52px; border-radius:16px;
  display:flex; align-items:center; justify-content:center;
  font-size:24px; margin-bottom:18px;
  background:var(--gradient-soft);
}
.benefit-card h3{ font-size:18px; font-weight:700; margin-bottom:8px; }
.benefit-card p{ font-size:14.5px; color:var(--ink-soft); }
@media (max-width:900px){ .benefit-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:600px){ .benefit-grid{ grid-template-columns:1fr; } }

/* ===================== Day timeline (flow) ===================== */
.timeline{ position:relative; }
.timeline-track{
  position:absolute; top:38px; right:0; left:0; height:2px;
  background:linear-gradient(90deg, var(--green-500), var(--blue-500));
  opacity:.25;
}
.timeline-row{ display:grid; grid-template-columns:repeat(5,1fr); gap:16px; position:relative; }
.timeline-item{ text-align:center; }
.timeline-dot{
  width:76px; height:76px; border-radius:50%; margin:0 auto 16px;
  display:flex; align-items:center; justify-content:center; font-size:28px;
  background:#fff; border:2px solid var(--line);
  position:relative; z-index:1;
}
.timeline-item.active .timeline-dot{ border-color:var(--green-500); background:var(--green-100); }
.timeline-time{ font-family:var(--font-num); font-size:12.5px; color:var(--green-600); font-weight:700; }
.timeline-item h4{ font-size:15px; font-weight:700; margin:6px 0 4px; }
.timeline-item p{ font-size:13px; color:var(--ink-soft); }
@media (max-width:900px){
  .timeline-row{ grid-template-columns:1fr 1fr; }
  .timeline-track{ display:none; }
}

/* ===================== Testimonials ===================== */
.testi-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.testi-card{ padding:28px; }
.testi-stars{ color:var(--amber-500); font-size:14px; margin-bottom:14px; letter-spacing:2px; }
.testi-card p{ font-size:15px; color:var(--ink-soft); margin-bottom:20px; }
.testi-who{ display:flex; align-items:center; gap:12px; }
.testi-avatar{ width:42px; height:42px; border-radius:50%; background:var(--gradient-primary); display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; }
.testi-who strong{ display:block; font-size:14px; }
.testi-who span{ font-size:12.5px; color:var(--ink-soft); }
@media (max-width:900px){ .testi-grid{ grid-template-columns:1fr; } }

/* ===================== CTA band ===================== */
.cta-band{
  position:relative;
  border-radius:var(--r-lg);
  padding:64px 48px;
  background:var(--gradient-primary);
  color:#fff;
  overflow:hidden;
  text-align:center;
}
.cta-band h2{ font-size:clamp(26px,3.6vw,38px); font-weight:800; margin-bottom:14px; }
.cta-band p{ opacity:.92; max-width:520px; margin:0 auto 30px; }
.cta-band .btn-primary{ background:#fff; color:var(--green-600); box-shadow:none; }
.cta-band .btn-primary:hover{ transform:translateY(-3px); }

/* ===================== Footer ===================== */
.footer{ background:var(--ink); color:rgba(255,255,255,0.7); padding:64px 0 28px; margin-top:40px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr repeat(3,1fr); gap:36px; }
.footer-brand{ color:#fff; font-weight:800; font-size:19px; display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.footer p{ font-size:14px; line-height:1.9; }
.footer h5{ color:#fff; font-size:14.5px; margin-bottom:16px; }
.footer li{ margin-bottom:10px; font-size:14px; }
.footer li a:hover{ color:#fff; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,0.12); margin-top:48px; padding-top:24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:13px; }
@media (max-width:800px){ .footer-grid{ grid-template-columns:1fr 1fr; } }

/* ===================== Page header (inner pages) ===================== */
.page-hero{ padding:56px 0 20px; text-align:center; }
.page-hero .eyebrow{ margin-inline:auto; }
.page-hero h1{ font-size:clamp(28px,4.4vw,44px); font-weight:800; letter-spacing:-0.02em; }
.page-hero p{ color:var(--ink-soft); max-width:560px; margin:16px auto 0; }

/* ===================== Nutrition Test ===================== */
.test-wrap{ max-width:680px; margin:0 auto; padding:40px; }
.test-progress{ display:flex; gap:6px; margin-bottom:36px; }
.test-progress i{ flex:1; height:5px; border-radius:99px; background:var(--line); overflow:hidden; }
.test-progress i span{ display:block; height:100%; width:0%; background:var(--gradient-primary); transition:width .5s var(--ease); }
.test-step{ display:none; }
.test-step.active{ display:block; animation:fadeIn .5s var(--ease); }
@keyframes fadeIn{ from{ opacity:0; transform:translateX(10px);} to{ opacity:1; transform:translateX(0);} }
.test-step .q-num{ font-family:var(--font-num); font-size:13px; color:var(--green-600); font-weight:700; margin-bottom:8px; }
.test-step h3{ font-size:22px; font-weight:800; margin-bottom:26px; }
.options-grid{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.option-card{
  border:1.5px solid var(--line); border-radius:var(--r-md); padding:18px;
  display:flex; align-items:center; gap:12px; transition:.3s var(--ease); font-size:14.5px; font-weight:600;
}
.option-card .ico{ font-size:20px; }
.option-card:hover{ border-color:var(--green-500); }
.option-card.selected{ border-color:var(--green-500); background:var(--green-100); color:var(--green-600); }
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:14px; font-weight:600; margin-bottom:8px; color:var(--ink-soft); }
.field input[type=number], .field input[type=text]{
  width:100%; padding:16px 18px; border-radius:var(--r-sm); border:1.5px solid var(--line); font-size:15px;
  transition:.3s var(--ease);
}
.field input:focus{ outline:none; border-color:var(--green-500); }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.range-field input[type=range]{ width:100%; accent-color:var(--green-500); }
.range-value{ text-align:center; font-family:var(--font-num); font-size:26px; font-weight:700; color:var(--green-600); margin-bottom:10px; }
.test-nav{ display:flex; justify-content:space-between; margin-top:34px; }
.test-result{ display:none; text-align:center; padding:40px 0; }
.test-result.active{ display:block; }

/* ===================== Brain foods ===================== */
.food-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.food-card{ overflow:hidden; transition:transform .4s var(--ease); }
.food-card:hover{ transform:translateY(-6px); }
.food-top{ padding:26px 22px 18px; display:flex; align-items:center; gap:14px; border-bottom:1px solid var(--line); }
.food-emoji{ font-size:34px; width:58px; height:58px; border-radius:16px; background:var(--gradient-soft); display:flex; align-items:center; justify-content:center; }
.food-top h3{ font-size:16.5px; font-weight:700; }
.food-top span{ font-size:12.5px; color:var(--green-600); font-weight:600; }
.food-body{ padding:20px 22px; }
.food-body p{ font-size:13.5px; color:var(--ink-soft); margin-bottom:14px; }
.food-macros{ display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin-bottom:14px; }
.macro{ text-align:center; background:var(--wash); border-radius:12px; padding:10px 4px; }
.macro strong{ display:block; font-family:var(--font-num); font-size:15px; }
.macro span{ font-size:10.5px; color:var(--ink-soft); }
.food-time{ display:flex; align-items:center; gap:8px; font-size:12.5px; color:var(--blue-600); font-weight:600; background:var(--blue-100); padding:9px 12px; border-radius:var(--r-pill); }
@media (max-width:960px){ .food-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .food-grid{ grid-template-columns:1fr; } }

/* ===================== Dashboard ===================== */
.dash-grid{ display:grid; grid-template-columns:1.3fr 1fr; gap:22px; }
.dash-col{ display:flex; flex-direction:column; gap:22px; }
.dash-card{ padding:26px; }
.dash-card h3{ font-size:15.5px; font-weight:700; margin-bottom:18px; display:flex; align-items:center; justify-content:space-between; }
.dash-card h3 span{ font-size:12px; font-weight:600; color:var(--green-600); background:var(--green-100); padding:4px 10px; border-radius:99px; }
.profile-row{ display:flex; align-items:center; gap:16px; margin-bottom:24px; }
.profile-avatar{ width:64px; height:64px; border-radius:50%; background:var(--gradient-primary); color:#fff; display:flex; align-items:center; justify-content:center; font-size:22px; font-weight:700; }
.profile-row strong{ font-size:17px; }
.profile-row span{ font-size:13px; color:var(--ink-soft); }
.kpi-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.kpi{ background:var(--wash); border-radius:16px; padding:16px; text-align:center; }
.kpi strong{ display:block; font-family:var(--font-num); font-size:22px; }
.kpi span{ font-size:11.5px; color:var(--ink-soft); }
.water-track{ display:flex; gap:8px; margin-top:14px; }
.water-cup{ flex:1; height:38px; border-radius:10px; background:var(--wash); border:1.5px solid var(--line); display:flex; align-items:center; justify-content:center; font-size:16px; }
.water-cup.filled{ background:var(--blue-100); border-color:var(--blue-500); }
.meal-list li{ display:flex; align-items:center; gap:14px; padding:12px 0; border-bottom:1px solid var(--line); }
.meal-list li:last-child{ border:none; }
.meal-ico{ width:40px; height:40px; border-radius:12px; background:var(--wash); display:flex; align-items:center; justify-content:center; font-size:18px; }
.meal-list strong{ display:block; font-size:14px; }
.meal-list span{ font-size:12px; color:var(--ink-soft); }
.meal-check{ margin-inline-start:auto; width:24px; height:24px; border-radius:50%; border:2px solid var(--line); }
.meal-check.done{ background:var(--green-500); border-color:var(--green-500); position:relative; }
.streak-row{ display:flex; gap:6px; justify-content:center; margin:8px 0 4px; }
.streak-day{ width:32px; height:32px; border-radius:9px; background:var(--wash); display:flex; align-items:center; justify-content:center; font-size:12px; color:var(--ink-soft); }
.streak-day.done{ background:var(--gradient-primary); color:#fff; }
@media (max-width:900px){ .dash-grid{ grid-template-columns:1fr; } }

/* ===================== FAQ ===================== */
.faq-item{ border-bottom:1px solid var(--line); padding:22px 4px; }
.faq-q{ display:flex; align-items:center; justify-content:space-between; cursor:pointer; font-weight:700; font-size:16px; }
.faq-q .plus{ font-size:20px; color:var(--green-600); transition:.3s var(--ease); }
.faq-item.open .faq-q .plus{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .4s var(--ease); font-size:14.5px; color:var(--ink-soft); }
.faq-item.open .faq-a{ max-height:200px; padding-top:14px; }

/* Responsive base */
@media (max-width:960px){
  .section{ padding:64px 0; }
  .stats-row, .benefit-grid{ gap:16px; }
}