/* ══════════════════════════════════════════════════════════
   VEKTOR SIGNAL — style.css
   Dark-luxe premium fitness AI
   ══════════════════════════════════════════════════════════ */

/* ── RESET & BASE ─────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color System */
  --bg:          #0C0C0E;
  --surface:     #1A1A1F;
  --surface-alt: #141417;
  --border:      rgba(240, 237, 232, 0.07);
  --text:        #F0EDE8;
  --text-muted:  rgba(240, 237, 232, 0.5);
  --text-dim:    rgba(240, 237, 232, 0.3);

  /* Signature Gradient */
  --ember:    #FF6B35;
  --meridian: #00D4AA;
  --depth:    #0066FF;

  /* Gradient string */
  --gradient: linear-gradient(135deg, var(--ember), var(--meridian), var(--depth));
  --gradient-x: linear-gradient(90deg, var(--ember), var(--meridian), var(--depth));

  /* Glows */
  --glow-ember:    0 0 40px rgba(255, 107, 53, 0.25);
  --glow-meridian: 0 0 40px rgba(0, 212, 170, 0.2);
  --glow-depth:    0 0 40px rgba(0, 102, 255, 0.2);

  /* Spacing */
  --max-w: 1280px;
  --section-pad: clamp(80px, 10vw, 140px);

  /* Type */
  --font-display: 'Inter', sans-serif;
  --font-mono:    'Space Mono', monospace;

  /* Transitions */
  --ease-out:  cubic-bezier(0.22, 1, 0.36, 1);
  --ease-expo: cubic-bezier(0.87, 0, 0.13, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── GRAIN OVERLAY ───────────────────────────────────── */
.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px 200px;
  mix-blend-mode: screen;
}

/* ── UTILITY ─────────────────────────────────────────── */
.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.gradient-text {
  background: var(--gradient-x);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.section-headline {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

/* ── SCROLL REVEAL ───────────────────────────────────── */
.reveal-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── NAVIGATION ──────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  padding: 0 clamp(20px, 5vw, 60px);
  transition: background 0.4s var(--ease-out), backdrop-filter 0.4s var(--ease-out), border-color 0.4s;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(12, 12, 14, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-wordmark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: 0.25em;
  color: var(--text);
  text-decoration: none;
  background: var(--gradient-x);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.25s;
}

.nav-link:hover {
  color: var(--text);
}

.nav-link--cta {
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 18px;
  border-radius: 4px;
  background: rgba(240, 237, 232, 0.04);
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}

.nav-link--cta:hover {
  background: rgba(240, 237, 232, 0.08);
  border-color: rgba(240, 237, 232, 0.15);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}

.mobile-menu {
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  z-index: 800;
  background: rgba(12, 12, 14, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px clamp(20px, 5vw, 60px);
  gap: 20px;
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-link {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

/* ── HERO SECTION ───────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 100px clamp(20px, 5vw, 60px) 80px;
}

.topo-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-glow {
  position: absolute;
  bottom: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 80vw;
  height: 60vh;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 212, 170, 0.08) 0%,
    rgba(255, 107, 53, 0.05) 35%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--meridian);
  box-shadow: 0 0 8px var(--meridian);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.7); }
}

.hero-headline {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(4rem, 10vw, 8rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.6rem;
}

.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.01em;
  line-height: 1.65;
  margin-bottom: 2.8rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 4rem;
}

/* ── BUTTONS ─────────────────────────────────────────── */
.btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  padding: 16px 36px;
  border-radius: 6px;
  background: var(--gradient-x);
  overflow: hidden;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s;
  box-shadow: 0 0 30px rgba(255, 107, 53, 0.2), 0 0 60px rgba(0, 212, 170, 0.1);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity 0.25s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px rgba(255, 107, 53, 0.35), 0 0 90px rgba(0, 212, 170, 0.2), 0 8px 30px rgba(0,0,0,0.4);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-glow {
  position: absolute;
  inset: -2px;
  border-radius: 8px;
  background: var(--gradient-x);
  filter: blur(12px);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: -1;
}

.btn-primary:hover .btn-glow {
  opacity: 0.5;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 16px 28px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: rgba(240,237,232,0.03);
  transition: color 0.25s, border-color 0.25s, background 0.25s, transform 0.25s var(--ease-out);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: rgba(240,237,232,0.18);
  background: rgba(240,237,232,0.06);
  transform: translateY(-2px);
}

/* ── HERO STATS ──────────────────────────────────────── */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-stat-num {
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--gradient-x);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero-stat-divider {
  width: 1px;
  height: 30px;
  background: var(--border);
}

/* ── HERO BADGE (Coming Soon) ───────────────────────── */
.hero-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: rgba(240,237,232,0.03);
}

/* ── SCROLL INDICATOR ────────────────────────────────── */
.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--meridian), transparent);
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50%       { transform: scaleY(1.3); opacity: 1; }
}

.scroll-text {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
}

/* ── SIGNAL CONCEPT SECTION ─────────────────────────── */
.signal-concept {
  position: relative;
  padding: var(--section-pad) clamp(20px, 5vw, 60px);
  overflow: hidden;
  border-top: 1px solid var(--border);
}

.topo-decoration {
  position: absolute;
  width: 500px;
  height: 500px;
  opacity: 0.6;
  pointer-events: none;
}

.topo-left {
  left: -120px;
  top: 50%;
  transform: translateY(-50%);
}

.topo-right {
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
}

/* Topo path animations */
.topo-path {
  transform-origin: center;
}

.topo-path.p1 { animation: topo-drift 12s ease-in-out infinite; }
.topo-path.p2 { animation: topo-drift 14s ease-in-out infinite reverse; }
.topo-path.p3 { animation: topo-drift 16s ease-in-out infinite 1s; }
.topo-path.p4 { animation: topo-drift 18s ease-in-out infinite reverse 2s; }
.topo-path.p5 { animation: topo-drift 20s ease-in-out infinite 3s; }

@keyframes topo-drift {
  0%, 100% { transform: scale(1) rotate(0deg); }
  33%       { transform: scale(1.02) rotate(0.5deg); }
  66%       { transform: scale(0.98) rotate(-0.5deg); }
}

.concept-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.concept-label {
  margin-bottom: 2rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.concept-quote {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 1.5rem;
  font-style: normal;
}

.concept-body {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 580px;
  margin: 0 auto 3.5rem;
}

.signal-viz {
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.signal-svg {
  width: 100%;
  height: auto;
}

.signal-wave {
  stroke-dasharray: 1600;
  stroke-dashoffset: 1600;
  animation: draw-wave 2.4s var(--ease-out) 0.4s forwards;
}

@keyframes draw-wave {
  to { stroke-dashoffset: 0; }
}

/* ── FEATURES SECTION ───────────────────────────────── */
.features {
  position: relative;
  padding: var(--section-pad) clamp(20px, 5vw, 60px);
  overflow: hidden;
}

.features-header {
  max-width: var(--max-w);
  margin: 0 auto 4rem;
}

.features-topo-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.features-grid {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

/* ── FEATURE CARDS ───────────────────────────────────── */
.feature-card {
  position: relative;
  background: var(--surface);
  padding: clamp(32px, 4vw, 52px);
  overflow: hidden;
  transition: background 0.35s;
}

.feature-card:hover {
  background: #1F1F26;
}

.card-topo-overlay {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 220px;
  height: 150px;
  pointer-events: none;
  opacity: 0.35;
  transition: opacity 0.35s;
}

.feature-card:hover .card-topo-overlay {
  opacity: 0.55;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(240,237,232,0.03);
  margin-bottom: 1.5rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.feature-card:hover .card-icon {
  border-color: rgba(0, 212, 170, 0.25);
  box-shadow: 0 0 20px rgba(0, 212, 170, 0.1);
}

.card-number {
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.card-headline {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 1rem;
  color: var(--text);
}

.card-body {
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 380px;
  margin-bottom: 2rem;
}

.card-tag {
  display: inline-block;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  background: rgba(240,237,232,0.03);
}

/* ── METRICS SECTION ────────────────────────────────── */
.metrics {
  position: relative;
  padding: var(--section-pad) clamp(20px, 5vw, 60px);
  overflow: hidden;
  background: var(--surface-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.metrics-topo-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  min-width: 1200px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.7;
}

.metrics-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
}

.metrics-label {
  margin-bottom: 2rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 4rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--border);
}

.metric-item {
  position: relative;
  background: var(--surface);
  padding: clamp(28px, 3vw, 48px) clamp(24px, 2.5vw, 40px);
  transition: background 0.3s;
}

.metric-item:hover {
  background: #1D1D23;
}

.metric-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-x);
  opacity: 0;
  transition: opacity 0.4s;
}

.metric-item:hover .metric-glow {
  opacity: 1;
}

.metric-num {
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  font-weight: 700;
  background: var(--gradient-x);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.8rem;
  display: block;
}

.metric-label {
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--text-muted);
  letter-spacing: 0.01em;
  margin-bottom: 1.5rem;
}

.metric-bar {
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.metric-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-x);
  border-radius: 2px;
  transition: width 1.2s var(--ease-out);
}

.metric-item.is-visible .metric-bar-fill {
  width: var(--fill);
}

/* ── EARLY ACCESS CONTENT ───────────────────────── */
.early-access-content {
  margin-top: 3rem;
  max-width: 720px;
}

.early-access-body {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 3rem;
}

.early-access-features {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--border);
}

.ea-feature {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: clamp(20px, 2.5vw, 32px) clamp(20px, 3vw, 36px);
  background: var(--surface);
  transition: background 0.3s;
}

.ea-feature + .ea-feature {
  border-top: none;
}

.ea-feature:hover {
  background: #1D1D23;
}

.ea-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 8px;
  background: var(--gradient-x);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.ea-title {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 2px;
}

.ea-desc {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

/* ── CLOSING SECTION ────────────────────────────────── */
.closing {
  position: relative;
  padding: var(--section-pad) clamp(20px, 5vw, 60px) calc(var(--section-pad) * 1.2);
  text-align: center;
  overflow: hidden;
}

.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80vw;
  height: 80vw;
  max-width: 800px;
  max-height: 800px;
  background: radial-gradient(
    ellipse at center,
    rgba(255, 107, 53, 0.07) 0%,
    rgba(0, 212, 170, 0.05) 35%,
    rgba(0, 102, 255, 0.04) 60%,
    transparent 75%
  );
  pointer-events: none;
  z-index: 0;
}

.closing-topo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(800px, 90vw);
  height: min(800px, 90vw);
  pointer-events: none;
  z-index: 1;
  animation: topo-drift 20s ease-in-out infinite;
}

.closing-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
}

.closing-headline {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

.closing-body {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 3rem;
}

.closing-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}

/* Store buttons */
.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(240,237,232,0.04);
  color: var(--text);
  transition: background 0.25s, border-color 0.25s, transform 0.25s var(--ease-out), box-shadow 0.25s;
  min-width: 175px;
}

.btn-store:hover {
  background: rgba(240,237,232,0.08);
  border-color: rgba(240,237,232,0.18);
  transform: translateY(-2px);
}

.btn-appstore:hover {
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.15);
}

.btn-google:hover {
  box-shadow: 0 8px 30px rgba(0, 212, 170, 0.12);
}

.store-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.store-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.store-small {
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  line-height: 1;
}

.store-big {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.closing-badge {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* ── FOOTER ─────────────────────────────────────────── */
.footer {
  position: relative;
  padding: 60px clamp(20px, 5vw, 60px) 40px;
  border-top: 1px solid var(--border);
  overflow: hidden;
}

.footer-topo {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  min-width: 1000px;
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.footer-wordmark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.25em;
  text-decoration: none;
  background: var(--gradient-x);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-nav {
  display: flex;
  gap: 2rem;
}

.footer-link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.25s;
}

.footer-link:hover {
  color: var(--text);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.footer-signal {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-signal-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--meridian);
  box-shadow: 0 0 6px var(--meridian);
  animation: pulse-dot 2.4s ease-in-out infinite;
}

.footer-signal-text {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
}

/* ── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

  .nav-hamburger {
    display: flex;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .topo-left,
  .topo-right {
    display: none;
  }

  .hero-stat-divider {
    display: none;
  }

  .hero-stats {
    gap: 1.2rem;
    flex-direction: row;
  }
}

@media (max-width: 520px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-direction: column;
  }

  .hero-stat-divider {
    display: none;
  }

  .closing-ctas {
    flex-direction: column;
    align-items: center;
  }
}