/* ===========================================
   FitLab — Design System
   =========================================== */

:root {
  --bg:        #090909;
  --surface:   #111115;
  --surface-2: #1A1A1F;
  --border:    rgba(255,255,255,0.07);
  --border-2:  rgba(255,255,255,0.13);

  --red:       #E8000D;
  --red-dim:   rgba(232,0,13,0.10);

  --text:      #F2F2EE;
  --text-2:    #8E8E9A;
  --text-3:    #4E4E5A;

  --font-display: 'Bebas Neue', sans-serif;
  --font-ui:      'Barlow', sans-serif;
  --font-label:   'Barlow Condensed', sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --ease: cubic-bezier(0.16,1,0.3,1);
}

/* ===========================================
   Reset
   =========================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  animation: pageIn 0.45s var(--ease) both;
}
body.page-leaving { animation: pageOut 0.31s ease forwards; pointer-events: none; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ===========================================
   Page Transitions
   =========================================== */

@keyframes pageIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}
@keyframes pageOut {
  to { opacity: 0; transform: translateY(-8px); }
}

/* ===========================================
   Scroll Progress
   =========================================== */

.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  z-index: 300;
  pointer-events: none;
}

/* ===========================================
   Reveal Animation
   =========================================== */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }

/* ===========================================
   Typography
   =========================================== */

h2 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 0.94;
  letter-spacing: 0.01em;
  color: var(--text);
}
.accent { color: var(--red); }
.eyebrow {
  display: block;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}

/* ===========================================
   Buttons
   =========================================== */

.btn-primary {
  display: inline-block;
  padding: 13px 30px;
  background: var(--red);
  color: #fff;
  font-family: var(--font-label);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: opacity 0.2s, transform 0.15s;
}
.btn-primary:hover { opacity: 0.86; transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  color: var(--text-2);
  font-family: var(--font-label);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  transition: color 0.2s, border-color 0.2s;
}
.btn-ghost svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn-ghost:hover { color: var(--text); border-color: rgba(255,255,255,0.25); }

/* ===========================================
   Navigation
   =========================================== */

nav#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 64px;
  height: 62px;
  background: rgba(9,9,9,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.7rem;
  letter-spacing: 0.05em;
}
.logo span { color: var(--red); }

nav#nav ul { display: flex; align-items: center; gap: 36px; }
nav#nav ul a {
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
  transition: color 0.2s;
}
nav#nav ul a:hover,
nav#nav ul a.nav-active { color: var(--text); }

.nav-cta {
  padding: 8px 18px !important;
  background: var(--red) !important;
  color: #fff !important;
  border-radius: var(--radius-sm);
  transition: opacity 0.2s !important;
}
.nav-cta:hover { opacity: 0.86; }

/* ===========================================
   Hero (Home)
   =========================================== */

#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(62px + 96px) 64px 80px;
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute;
  top: -180px; right: -120px;
  width: 600px; height: 600px;
  background: radial-gradient(ellipse, rgba(232,0,13,0.07) 0%, transparent 68%);
  pointer-events: none;
}
#hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--border);
}

/* Hero animated elements */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-label);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease) 0.05s both;
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--red);
  flex-shrink: 0;
  animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(5rem, 10.5vw, 9.5rem);
  line-height: 0.88;
  letter-spacing: 0.01em;
  margin-bottom: 32px;
}
.h-line {
  display: inline-block;
  opacity: 0;
  animation: lineIn 0.8s var(--ease) both;
  animation-delay: var(--delay, 0s);
}
@keyframes lineIn {
  from { opacity: 0; transform: translateY(28px); filter: blur(4px); }
  to   { opacity: 1; transform: none; filter: none; }
}

.hero-sub {
  color: var(--text-2);
  font-size: 1.08rem;
  line-height: 1.68;
  max-width: 500px;
  margin-bottom: 36px;
  font-weight: 300;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease) 0.55s both;
}
.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease) 0.7s both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  opacity: 0;
  animation: fadeUp 0.7s var(--ease) 0.85s both;
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  line-height: 1;
}
.stat-label {
  display: block;
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 4px;
}
.stat-sep { width: 1px; height: 36px; background: var(--border-2); flex-shrink: 0; }

/* ===========================================
   Section Common
   =========================================== */

section {
  padding: 120px 64px;
  max-width: 1280px;
  margin: 0 auto;
}
.section-intro { margin-bottom: 56px; }
.section-intro h2 { margin-bottom: 14px; }
.section-intro p {
  color: var(--text-2);
  font-size: 1rem;
  max-width: 440px;
  font-weight: 300;
}

/* ===========================================
   Features (Home)
   =========================================== */

#features {
  max-width: 100%;
  padding: 120px 64px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
#features .section-intro,
#features .cards-grid {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--border);
  gap: 1px;
}
.card {
  background: var(--surface);
  padding: 36px 28px;
  transition: background 0.2s;
}
.card:hover { background: var(--surface-2); }
.card-icon { width: 36px; height: 36px; color: var(--red); margin-bottom: 28px; }
.card-icon svg { width: 100%; height: 100%; }
.card h3 {
  font-family: var(--font-label);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.card p { color: var(--text-2); font-size: 0.88rem; line-height: 1.68; font-weight: 300; }

/* ===========================================
   Explore Section (Home)
   =========================================== */

#explore { border-bottom: 1px solid var(--border); }

.explore-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.explore-card {
  position: relative;
  height: 340px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 36px;
  cursor: pointer;
  transition: border-color 0.25s;
  text-decoration: none;
}
.explore-card::before {
  content: '';
  position: absolute;
  inset: -4%;
  background: hsl(var(--hue, 0deg) 30% 9%);
  transition: transform 0.55s var(--ease);
  z-index: 0;
}
.explore-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.1) 60%, transparent);
  z-index: 1;
}
.explore-card:hover { border-color: var(--border-2); }
.explore-card:hover::before { transform: scale(1.06); }
.explore-card:hover .explore-arrow { transform: translateX(5px); }

.explore-content {
  position: relative;
  z-index: 2;
}
.explore-count {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 8px;
}
.explore-card h3 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  line-height: 0.95;
  color: var(--text);
  margin-bottom: 16px;
}
.explore-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
}
.explore-arrow { transition: transform 0.25s var(--ease); }

/* ===========================================
   Page Header (Inner Pages)
   =========================================== */

.page-header {
  padding: calc(62px + 72px) 64px 60px;
  border-bottom: 1px solid var(--border);
  max-width: 100%;
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 7vw, 6rem);
  line-height: 0.9;
  margin-bottom: 14px;
  opacity: 0;
  animation: lineIn 0.75s var(--ease) 0.1s both;
}
.page-header .eyebrow { animation: fadeUp 0.6s var(--ease) 0s both; opacity: 0; }
.page-header p {
  color: var(--text-2);
  font-size: 1rem;
  max-width: 520px;
  font-weight: 300;
  opacity: 0;
  animation: fadeUp 0.6s var(--ease) 0.25s both;
}

/* ===========================================
   Filter Bar
   =========================================== */

.filter-bar {
  display: flex;
  gap: 8px;
  padding: 40px 64px 0;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s var(--ease) 0.3s both;
}
.filter-btn {
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover { color: var(--text); border-color: var(--border-2); }
.filter-btn.active { background: var(--red); border-color: var(--red); color: #fff; }

/* ===========================================
   Content Grid (Receitas / Treinos)
   =========================================== */

.filtered-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 40px 64px 120px;
}

@keyframes cardIn {
  from { opacity: 0; transform: scale(0.93) translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.content-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  animation: cardIn 0.42s var(--ease) both;
}
.content-card:hover { border-color: var(--border-2); }

.card-thumb {
  position: relative;
  height: 168px;
  overflow: hidden;
}
.thumb-bg {
  position: absolute;
  inset: -5%;
  background: hsl(var(--hue,0deg) 28% 11%);
  transition: transform 0.5s var(--ease);
}
.content-card:hover .thumb-bg { transform: scale(1.08); }

.thumb-top {
  position: absolute;
  top: 12px; right: 12px;
  z-index: 2;
  display: flex;
  gap: 6px;
}
.card-badge {
  font-family: var(--font-label);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--red);
  color: #fff;
  padding: 3px 8px;
  border-radius: 3px;
}
.card-badge.alt {
  background: rgba(255,255,255,0.12);
  color: var(--text);
  backdrop-filter: blur(6px);
}

.card-body { padding: 20px 20px 22px; }
.card-category {
  font-family: var(--font-label);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 6px;
}
.card-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 14px;
}
.card-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.card-meta span {
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-3);
}
.card-meta .dot { color: var(--border-2); }

/* Difficulty Indicator */
.difficulty {
  display: flex;
  gap: 3px;
  margin-left: auto;
}
.difficulty-pip {
  width: 18px; height: 3px;
  border-radius: 2px;
  background: var(--border-2);
}
.difficulty-pip.on { background: var(--red); }

/* ===========================================
   Mentoras (Full Page)
   =========================================== */

.mentora-full {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 56px;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 20px;
  transition: border-color 0.2s;
}
.mentora-full:hover { border-color: var(--border-2); }

.mentora-photo-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.mentora-avatar-lg {
  width: 200px; height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(232,0,13,0.3) 0%, rgba(90,0,5,0.5) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--text);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.mentora-avatar-lg.blue {
  background: linear-gradient(135deg, rgba(30,80,220,0.3) 0%, rgba(0,30,100,0.5) 100%);
}

.mentora-social {
  display: flex;
  gap: 10px;
}
.social-btn {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  transition: border-color 0.2s, color 0.2s;
}
.social-btn:hover { border-color: var(--border-2); color: var(--text); }
.social-btn svg { width: 16px; height: 16px; }

.mentora-full-body h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 6px;
}
.mentora-full-role {
  display: block;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 20px;
}
.mentora-full-body p {
  color: var(--text-2);
  font-size: 0.95rem;
  line-height: 1.75;
  font-weight: 300;
  margin-bottom: 28px;
  max-width: 540px;
}

.specialty-list { margin-bottom: 28px; }
.specialty-list h4 {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 14px;
}
.specialty-item { margin-bottom: 10px; }
.specialty-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-2);
  margin-bottom: 6px;
}
.specialty-bar {
  height: 3px;
  background: var(--border-2);
  border-radius: 2px;
  overflow: hidden;
}
.specialty-fill {
  height: 100%;
  background: var(--red);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1s var(--ease);
}
.specialty-fill.animate { transform: scaleX(1); }

.mentora-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.mentora-tags span {
  font-family: var(--font-label);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 3px;
}

/* ===========================================
   App Download Page
   =========================================== */

.app-hero {
  min-height: calc(100vh - 62px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: calc(62px + 80px) 64px 80px;
  max-width: 100%;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.app-hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at 70% 50%, rgba(232,0,13,0.05) 0%, transparent 65%);
  pointer-events: none;
}

.app-hero-info h1 {
  font-family: var(--font-display);
  font-size: clamp(4rem, 7vw, 6.5rem);
  line-height: 0.9;
  margin-bottom: 20px;
  opacity: 0;
  animation: lineIn 0.8s var(--ease) 0.1s both;
}
.app-hero-info p {
  color: var(--text-2);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 420px;
  margin-bottom: 32px;
  font-weight: 300;
  opacity: 0;
  animation: fadeUp 0.6s var(--ease) 0.4s both;
}
.app-hero-info .app-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
  opacity: 0;
  animation: fadeUp 0.6s var(--ease) 0.55s both;
}
.app-badges span {
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}
.app-hero-info .store-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s var(--ease) 0.7s both;
}
.store-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color 0.2s, background 0.2s;
}
.store-btn:hover { border-color: var(--border-2); background: var(--surface-2); }
.store-btn svg { flex-shrink: 0; }
.store-btn small {
  display: block;
  font-family: var(--font-label);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}
.store-btn strong {
  display: block;
  font-family: var(--font-label);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* Floating phones */
.app-phones {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 0;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.5s both;
}
.phone-float {
  width: 155px;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-radius: 26px;
  overflow: hidden;
  flex-shrink: 0;
}
.phone-float.back {
  width: 120px;
  transform: translateX(24px) translateY(28px);
  opacity: 0.6;
  animation: floatBack 4s ease-in-out infinite;
}
.phone-float.front {
  animation: floatFront 4s ease-in-out 0.5s infinite;
  z-index: 1;
  position: relative;
}
@keyframes floatFront {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
@keyframes floatBack {
  0%,100% { transform: translateX(24px) translateY(28px); }
  50%      { transform: translateX(24px) translateY(18px); }
}
.phone-inner { padding: 20px 14px 22px; }
.phone-notch {
  width: 50px; height: 8px;
  background: var(--bg);
  border-radius: 4px;
  margin: 0 auto 16px;
}
.phone-screen-content { display: flex; flex-direction: column; gap: 7px; }
.phone-app-logo {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}
.phone-app-logo span { color: var(--red); }
.phone-bar { height: 5px; width: 55%; background: var(--red); border-radius: 3px; margin-bottom: 2px; }
.phone-row { height: 26px; background: var(--border-2); border-radius: 5px; }
.phone-row.sm { width: 70%; }
.phone-row.dim { opacity: 0.4; }

/* QR section */
.qr-section {
  padding: 80px 64px;
  display: flex;
  align-items: center;
  gap: 64px;
  border-bottom: 1px solid var(--border);
  max-width: 100%;
}
.qr-box-wrap {
  padding: 14px;
  background: #fff;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}
.qr-text h3 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 10px;
}
.qr-text p {
  color: var(--text-2);
  font-size: 0.95rem;
  font-weight: 300;
  max-width: 360px;
  line-height: 1.65;
}

/* App features list */
.app-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.app-feature {
  background: var(--surface);
  padding: 32px 28px;
  transition: background 0.2s;
}
.app-feature:hover { background: var(--surface-2); }
.app-feature-icon {
  width: 32px; height: 32px;
  color: var(--red);
  margin-bottom: 20px;
}
.app-feature-icon svg { width: 100%; height: 100%; }
.app-feature h4 {
  font-family: var(--font-label);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.app-feature p { color: var(--text-2); font-size: 0.85rem; line-height: 1.6; font-weight: 300; }

/* ===========================================
   Mentoras Grid (Home preview)
   =========================================== */

#mentoras { border-bottom: 1px solid var(--border); }
.mentoras-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.mentora-card {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color 0.2s;
}
.mentora-card:hover { border-color: var(--border-2); }
.mentora-avatar {
  flex-shrink: 0;
  width: 72px; height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(232,0,13,0.28) 0%, rgba(90,0,5,0.45) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.mentora-avatar::after {
  content: attr(data-initials);
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--text);
  letter-spacing: 0.04em;
}
.mentora-avatar--blue {
  background: linear-gradient(135deg, rgba(30,80,220,0.28) 0%, rgba(0,30,100,0.45) 100%);
}
.mentora-body h3 { font-family: var(--font-display); font-size: 1.45rem; line-height: 1; margin-bottom: 6px; }
.mentora-role {
  display: block;
  font-family: var(--font-label);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 14px;
}
.mentora-body p { color: var(--text-2); font-size: 0.88rem; line-height: 1.7; font-weight: 300; margin-bottom: 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span {
  font-family: var(--font-label);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 3px;
}

/* ===========================================
   Video Section (Home)
   =========================================== */

#video { border-bottom: 1px solid var(--border); }
.video-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
}
.video-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(232,0,13,0.05) 0%, transparent 55%);
}
.play-btn {
  position: relative; z-index: 1;
  width: 60px; height: 60px;
  background: var(--red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s var(--ease), opacity 0.2s;
}
.play-btn svg { width: 22px; height: 22px; color: #fff; margin-left: 3px; }
.video-thumb:hover .play-btn { transform: scale(1.1); }
.video-duration {
  position: absolute;
  bottom: 14px; right: 14px;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-2);
  background: rgba(0,0,0,0.65);
  padding: 3px 8px;
  border-radius: 4px;
}
.video-info h2 { margin-bottom: 16px; }
.video-info p { color: var(--text-2); font-size: 0.98rem; line-height: 1.68; margin-bottom: 28px; font-weight: 300; }
.check-list { display: flex; flex-direction: column; }
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-2);
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
  font-weight: 300;
  line-height: 1.5;
}
.check-list li:first-child { border-top: 1px solid var(--border); }
.check-list li::before {
  content: '';
  flex-shrink: 0;
  width: 15px; height: 15px;
  margin-top: 1px;
  background-color: var(--red-dim);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l3 3 5-5' stroke='%23E8000D' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: 10px;
  background-repeat: no-repeat;
  background-position: center;
  border: 1px solid rgba(232,0,13,0.28);
  border-radius: 4px;
}

/* ===========================================
   CTA
   =========================================== */

#cta {
  text-align: center;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
#cta::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(232,0,13,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.cta-content { position: relative; z-index: 1; }
.cta-content h2 { font-size: clamp(3rem, 7vw, 5.5rem); margin-bottom: 16px; }
.cta-content p { color: var(--text-2); font-size: 1rem; margin-bottom: 36px; font-weight: 300; }

/* ===========================================
   Footer
   =========================================== */

footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 28px 64px;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo { font-family: var(--font-display); font-size: 1.25rem; letter-spacing: 0.05em; }
.footer-logo span { color: var(--red); }
.footer-links { display: flex; gap: 32px; }
.footer-links a {
  font-family: var(--font-label);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--text-2); }
.footer-copy { font-family: var(--font-label); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--text-3); }

/* ===========================================
   Responsive
   =========================================== */

@media (max-width: 1024px) {
  nav#nav { padding: 0 32px; }
  #hero { padding: calc(62px + 64px) 32px 64px; }
  section { padding: 80px 32px; }
  #features { padding: 80px 32px; }
  #features .section-intro, #features .cards-grid { padding: 0; }
  .cards-grid { grid-template-columns: repeat(2,1fr); }
  .explore-grid { grid-template-columns: 1fr; }
  .video-layout { grid-template-columns: 1fr; gap: 40px; }
  .mentoras-grid { grid-template-columns: 1fr; }
  .filtered-grid { grid-template-columns: repeat(2,1fr); padding: 32px; }
  .filter-bar { padding: 32px 32px 0; }
  .page-header { padding: calc(62px + 48px) 32px 48px; }
  .mentora-full { grid-template-columns: 1fr; gap: 32px; padding: 32px; }
  .mentora-photo-area { flex-direction: row; align-items: center; }
  .app-hero { grid-template-columns: 1fr; padding: calc(62px + 48px) 32px 48px; }
  .qr-section { padding: 60px 32px; flex-direction: column; align-items: flex-start; gap: 32px; }
  .app-features-grid { grid-template-columns: 1fr; }
  footer { padding: 24px 32px; }
}

@media (max-width: 640px) {
  nav#nav { padding: 0 20px; }
  nav#nav ul { gap: 12px; }
  nav#nav ul li:not(:last-child):not(:nth-last-child(2)) { display: none; }
  #hero { padding: calc(62px + 48px) 20px 48px; }
  .hero-stats { gap: 20px; margin-top: 40px; }
  section { padding: 60px 20px; }
  #features { padding: 60px 20px; }
  .cards-grid { grid-template-columns: 1fr; }
  .filtered-grid { grid-template-columns: 1fr; padding: 20px; }
  .filter-bar { padding: 24px 20px 0; }
  .page-header { padding: calc(62px + 36px) 20px 36px; }
  .mentora-full { padding: 24px; }
  .mentora-avatar-lg { width: 80px; height: 80px; font-size: 1.5rem; }
  .app-hero { padding: calc(62px + 40px) 20px 40px; }
  .qr-section { padding: 48px 20px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  footer { padding: 24px 20px; }
}