/* ── landing.css — Home / Landing Page Styles ── */

/* ─────────────────────────────────────────
   HERO SECTION
───────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(52px, 9vw, 110px);
  letter-spacing: -1px;
  line-height: 0.95;
  animation: fadeUp 0.8s ease 0.1s both;
}

.hero__title-line--plain  { display: block; color: var(--color-white); }
.hero__title-line--accent {
  display: block;
  background: linear-gradient(90deg, var(--color-cyan) 0%, #4da6ff 50%, var(--color-cyan-deep) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  margin-top: var(--space-6);
  max-width: 540px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-muted);
  animation: fadeUp 0.8s ease 0.2s both;
}

.hero__subtitle strong { color: var(--color-white); font-weight: 400; }

.hero__actions {
  display: flex;
  gap: 14px;
  margin-top: 44px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeUp 0.8s ease 0.3s both;
}

/* ─────────────────────────────────────────
   DASHBOARD MOCKUP (hero visual)
───────────────────────────────────────── */
.hero-visual {
  margin-top: 80px;
  width: 100%;
  max-width: 860px;
  animation: fadeUp 0.9s ease 0.45s both;
  position: relative;
}

/* glow under the mockup */
.hero-visual::before {
  content: '';
  position: absolute;
  bottom: -40px; left: 10%; right: 10%;
  height: 80px;
  background: radial-gradient(ellipse, rgba(0, 198, 255, 0.18) 0%, transparent 70%);
  filter: blur(20px);
  z-index: -1;
}

.mockup {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.04) inset;
}

.mockup__bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.02);
}

.mockup__traffic-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.mockup__traffic-dot--red    { background: #ff5f57; }
.mockup__traffic-dot--yellow { background: #febc2e; }
.mockup__traffic-dot--green  { background: #28c840; }

.mockup__label {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 500;
}

.mockup__body { padding: 28px 28px 24px; }

/* metric cards row */
.metric-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.metric-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.metric-card__label {
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-2);
}

.metric-card__value {
  font-family: var(--font-display);
  font-size: 28px;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-cyan), #88d8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.metric-card__delta {
  font-size: 10px;
  color: var(--color-success);
  margin-top: var(--space-1);
}

.metric-card__delta--down { color: #ff6a6a; }

/* chart + insights layout */
.chart-area {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-4);
}

.chart-box,
.insights-box {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.chart-box__title,
.insights-box__title {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-4);
}

/* bar chart */
.bars {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  height: 100px;
}

.bar-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.bar {
  width: 100%;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--color-cyan) 0%, var(--color-cyan-deep) 100%);
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}
.bar:hover       { opacity: 1; }
.bar--highlight  { background: linear-gradient(180deg, #00e5a0, #00b37a); opacity: 1; }

.bar-label { font-size: 9px; color: var(--color-muted); }

/* insight items */
.insights-box { display: flex; flex-direction: column; gap: var(--space-3); }

.insight-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.insight-item__icon {
  width: 28px; height: 28px;
  border-radius: 8px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}
.insight-item__icon--cyan   { background: rgba(0, 198, 255, 0.12); }
.insight-item__icon--green  { background: rgba(0, 229, 160, 0.12); }
.insight-item__icon--orange { background: rgba(255, 106, 0, 0.12); }

.insight-item__title { font-size: 12px; font-weight: 500; color: var(--color-white); }
.insight-item__sub   { font-size: 11px; color: var(--color-muted); margin-top: 2px; }

/* ─────────────────────────────────────────
   STATS STRIP
───────────────────────────────────────── */
.stats-strip {
  display: flex;
  justify-content: center;
  padding: 60px var(--space-12);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: var(--z-content);
}

.stat-item {
  flex: 1;
  max-width: 220px;
  text-align: center;
  padding: 0 var(--space-6);
  border-right: 1px solid var(--color-border);
}
.stat-item:last-child { border-right: none; }

.stat-item__value {
  font-family: var(--font-display);
  font-size: 52px;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-cyan), #88d0ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item__label {
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 1px;
  margin-top: var(--space-1);
  text-transform: uppercase;
}

/* ─────────────────────────────────────────
   FEATURES GRID
───────────────────────────────────────── */
.features-section {
  padding: 120px var(--space-12);
  max-width: 1100px;
  margin-inline: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-med), transform var(--transition-med);
}

.feature-card:hover {
  border-color: rgba(0, 198, 255, 0.3);
  transform: translateY(-4px);
}

/* top accent line reveals on hover */
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-cyan) 50%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-med);
}
.feature-card:hover::before { opacity: 1; }

.feature-card__icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  background: rgba(0, 198, 255, 0.08);
  border: 1px solid rgba(0, 198, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 20px;
}

.feature-card__title { font-size: 16px; font-weight: 500; margin-bottom: 10px; }
.feature-card__desc  { font-size: 13px; color: var(--color-muted); line-height: 1.65; }

.feature-card__tag {
  display: inline-block;
  margin-top: var(--space-4);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 10px;
  letter-spacing: 1px;
  font-weight: 500;
  text-transform: uppercase;
  background: rgba(0, 198, 255, 0.08);
  color: var(--color-cyan);
  border: 1px solid rgba(0, 198, 255, 0.2);
}

/* ─────────────────────────────────────────
   SPOTLIGHT SECTIONS (alternating layout)
───────────────────────────────────────── */
.spotlight {
  padding: 100px var(--space-12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1100px;
  margin-inline: auto;
}

/* reverse column order for alternating layout */
.spotlight--reverse { direction: rtl; }
.spotlight--reverse > * { direction: ltr; }

.spotlight__copy h2 {
  font-family: var(--font-display);
  font-size: clamp(34px, 4vw, 52px);
  letter-spacing: 0.5px;
  line-height: 1.05;
  margin-bottom: 20px;
}

.spotlight__copy p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
  margin-bottom: 28px;
}

.spotlight__copy p strong { color: var(--color-white); font-weight: 400; }

/* data card inside spotlight */
.sp-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
}

.sp-card__title {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-6);
}

/* ─────────────────────────────────────────
   VO2MAX GAUGE
───────────────────────────────────────── */
.vo2-gauge { text-align: center; margin-bottom: var(--space-6); }

.vo2-gauge__value {
  font-family: var(--font-display);
  font-size: 64px;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-cyan), #4dbbff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.vo2-gauge__unit  { font-size: 13px; color: var(--color-muted); margin-top: 2px; }
.vo2-gauge__label { font-size: 12px; color: var(--color-success); font-weight: 500; margin-top: var(--space-1); letter-spacing: 1px; text-transform: uppercase; }

.vo2-progress {
  height: 8px;
  background: var(--color-surface-2);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin: 20px 0;
}

.vo2-progress__fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-cyan-deep), var(--color-cyan));
}

/* ─────────────────────────────────────────
   HEART RATE ZONES
───────────────────────────────────────── */
.zones { display: flex; flex-direction: column; gap: var(--space-2); }

.zone-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
}

.zone-row__color {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.zone-row__name { flex: 1; color: var(--color-muted); }
.zone-row__pct  { font-weight: 500; color: var(--color-white); }

.zone-row__bar-bg {
  width: 80px; height: 4px;
  background: var(--color-surface-2);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.zone-row__bar-fill { height: 100%; border-radius: var(--radius-pill); }

/* ─────────────────────────────────────────
   TRAINING LOAD GRID
───────────────────────────────────────── */
.load-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.load-item {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 14px;
}

.load-item__value {
  font-family: var(--font-display);
  font-size: 30px;
}

/* gradient text helpers */
.text--cyan   { background: linear-gradient(135deg, var(--color-cyan), #4dbbff); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text--orange { background: linear-gradient(135deg, var(--color-orange), #ffb04d); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text--green  { background: linear-gradient(135deg, var(--color-success), #4dffc0); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.load-item__label {
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 4px;
}

.load-rec {
  margin-top: 14px;
  padding: 12px 14px;
  background: rgba(0, 229, 160, 0.06);
  border: 1px solid rgba(0, 229, 160, 0.15);
  border-radius: 10px;
  font-size: 12px;
  color: var(--color-success);
  line-height: 1.5;
}

.load-rec strong { display: block; margin-bottom: 2px; font-weight: 500; }

/* ─────────────────────────────────────────
   TESTIMONIALS
───────────────────────────────────────── */
.testimonials {
  padding: 100px var(--space-12);
  max-width: 1100px;
  margin-inline: auto;
  text-align: center;
}

.testimonials .section-title { margin-bottom: var(--space-12); }

.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  text-align: left;
}

.testi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition-med);
}

.testi-card:hover { border-color: rgba(0, 198, 255, 0.25); }

.testi-card__stars  { color: var(--color-orange); font-size: 13px; letter-spacing: 2px; margin-bottom: 14px; }
.testi-card__body   { font-size: 14px; line-height: 1.7; color: var(--color-muted); margin-bottom: 20px; }
.testi-card__body em { color: var(--color-white); font-style: normal; font-weight: 400; }

.testi-card__author  { display: flex; align-items: center; gap: 10px; }
.testi-card__avatar  {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--gradient-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-bg);
  flex-shrink: 0;
}
.testi-card__name { font-size: 13px; font-weight: 500; }
.testi-card__role { font-size: 11px; color: var(--color-muted); }

/* ─────────────────────────────────────────
   CTA BANNER
───────────────────────────────────────── */
.cta-banner {
  padding: 120px var(--space-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* radial glow behind CTA */
.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 300px;
  background: radial-gradient(ellipse, rgba(0, 198, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner__title {
  font-family: var(--font-display);
  font-size: clamp(38px, 6vw, 72px);
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.cta-banner__sub {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 480px;
  margin: 0 auto var(--space-10);
  line-height: 1.65;
}

/* ─────────────────────────────────────────
   SINGLE-SCREEN PAGES (connect, callback, success)
───────────────────────────────────────── */
.screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.screen__card {
  position: relative;
  z-index: var(--z-content);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 56px 52px 48px;
  width: min(460px, 92vw);
  animation: cardIn 0.75s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.screen__card::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
  border-radius: 1px;
}

.screen__title {
  font-family: var(--font-display);
  font-size: clamp(26px, 5vw, 34px);
  letter-spacing: 2px;
  line-height: 1.1;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-3);
  animation: fadeUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.2s both;
}

.screen__desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.65;
  max-width: 320px;
  margin-bottom: 36px;
  animation: fadeUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.3s both;
}

/* ─────────────────────────────────────────
   RESPONSIVE BREAKPOINTS
───────────────────────────────────────── */
@media (max-width: 900px) {
  .nav { padding: 0 var(--space-6); }

  .features-grid      { grid-template-columns: 1fr 1fr; }
  .testi-grid         { grid-template-columns: 1fr; }
  .metric-row         { grid-template-columns: repeat(2, 1fr); }
  .chart-area         { grid-template-columns: 1fr; }
  .stats-strip        { flex-wrap: wrap; }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 20px 0;
  }
  .stat-item:last-child { border-bottom: none; }

  .spotlight                { grid-template-columns: 1fr; gap: 40px; }
  .spotlight--reverse       { direction: ltr; }

  .features-section,
  .testimonials,
  .spotlight { padding: 80px var(--space-6); }
}

@media (max-width: 600px) {
  .features-grid      { grid-template-columns: 1fr; }
  .hero__actions      { flex-direction: column; align-items: stretch; }
  .load-grid          { grid-template-columns: 1fr 1fr; }
  .screen__card       { padding: 40px 28px 36px; }
}