*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #F2F2F7;
  --card: #FFFFFF;
  --text: #4A4A4A;
  --text-secondary: #8E8E93;
  --text-strong: #1C1C1E;
  --separator: rgba(0,0,0,0.08);
  --accent: #4A4A4A;
  --radius: 24px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: rgba(0, 0, 0, 0.06);
}

.nav-logo {
  height: 28px;
  width: auto;
  display: block;
}

.nav-cta {
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--card);
  background: var(--text-strong);
  padding: 9px 20px;
  border-radius: 100px;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.75; }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 80px;
  padding: 120px 40px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  animation: moodBg 5s ease-in-out infinite alternate;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.12);
  z-index: 1;
}

@keyframes moodBg {
  0%    { background-color: hsl(120, 60%, 65%); }
  16.7% { background-color: hsl(100, 62%, 64%); }
  33.3% { background-color: hsl(80,  63%, 63%); }
  50%   { background-color: hsl(60,  65%, 62%); }
  66.7% { background-color: hsl(40,  67%, 60%); }
  83.3% { background-color: hsl(20,  68%, 59%); }
  100%  { background-color: hsl(0,   70%, 58%); }
}

.hero-inner {
  flex: 1;
  max-width: 500px;
  position: relative;
  z-index: 2;
}

.mood-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
}

.mood-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
}
.mood-dot:nth-child(1) { animation-delay: 0s; }
.mood-dot:nth-child(2) { animation-delay: 0.15s; }
.mood-dot:nth-child(3) { animation-delay: 0.3s; }
.mood-dot:nth-child(4) { animation-delay: 0.45s; }
.mood-dot:nth-child(5) { animation-delay: 0.6s; }
.mood-dot:nth-child(6) { animation-delay: 0.75s; }
.mood-dot:nth-child(7) { animation-delay: 0.9s; }

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.85; }
}

.hero-title {
  font-family: 'Montserrat Alternates', sans-serif;
  font-size: clamp(56px, 8vw, 80px);
  font-weight: 700;
  color: #fff;
  letter-spacing: -3px;
  line-height: 1;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 20px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  line-height: 1.55;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.15s, opacity 0.15s;
}
.btn-primary:hover, .btn-secondary:hover { transform: translateY(-2px); opacity: 0.85; }

.btn-primary {
  background: #fff;
  color: var(--text-strong);
}
.btn-secondary {
  background: rgba(255,255,255,0.2);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.5);
}

.hero .btn-secondary {
  background: #1C1C1E;
  border-color: #1C1C1E;
}

/* ── PHONE MOCKUP ── */
.hero-phone {
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.phone-frame {
  width: 240px;
  background: var(--text-strong);
  border-radius: 44px;
  padding: 14px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.05);
}

.phone-screenshots {
  border-radius: 32px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 9/19.5;
}

.phone-screen-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.phone-screen-img.active {
  opacity: 1;
}

/* Top panel */
.phone-panel {
  background: rgba(255,255,255,0.85);
  padding: 18px 14px 12px;
  border-bottom-left-radius: 20px;
  border-bottom-right-radius: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.phone-title {
  font-family: 'Montserrat Alternates', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.8px;
  text-align: center;
}
.phone-sub {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  letter-spacing: 0.2px;
}

.phone-moods {
  display: flex;
  justify-content: space-between;
  padding: 0 2px;
}

.phone-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  box-shadow: 0 2px 5px rgba(0,0,0,0.12);
}

.phone-legend {
  display: flex;
  justify-content: space-between;
  font-size: 8px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* Tracker section */
.phone-tracker {
  flex: 1;
  padding: 12px 14px 6px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}

.phone-tracker-title {
  font-size: 14px;
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: -0.3px;
}

.phone-tracker-sub {
  font-size: 8px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: -4px;
}

.phone-streak {
  background: #3a3a3c;
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.phone-streak-count {
  font-size: 16px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.phone-streak-label {
  font-size: 8px;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.phone-topmod {
  background: #fff;
  border-radius: 12px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.phone-topmod-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
}

.phone-topmod-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex: 1;
}

.phone-topmod-label {
  font-size: 7px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.phone-topmod-name {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-strong);
}

.phone-topmod-count {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-strong);
}

/* Calendar */
.phone-cal-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  margin-top: 2px;
}

.phone-cal-header span {
  font-size: 8px;
  font-weight: 700;
  color: var(--text-secondary);
}

.phone-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
}

.cal-dot {
  aspect-ratio: 1;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 7px;
  font-weight: 700;
  color: #fff;
}

/* Bottom nav */
.phone-tabs {
  display: flex;
  justify-content: space-around;
  padding: 8px 0 10px;
  border-top: 1px solid var(--separator);
  background: rgba(255,255,255,0.6);
}
.phone-tabs span {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-secondary);
}
.phone-tabs span.active {
  color: var(--text-strong);
}

/* ── SECTIONS COMMON ── */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 900;
  color: var(--text-strong);
  letter-spacing: -1.5px;
  margin-bottom: 12px;
}

.section-sub {
  font-size: 18px;
  color: var(--text-secondary);
  font-weight: 500;
  max-width: 520px;
  line-height: 1.55;
  margin-bottom: 60px;
}

/* ── FEATURES ── */
.features {
  padding: 100px 0;
  background: var(--card);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.feature-card--accent {
  background: var(--text-strong);
  color: #fff;
}
.feature-card--accent h3,
.feature-card--accent .feature-icon { color: #fff; }
.feature-card--accent p { color: rgba(255,255,255,0.7); }

.feature-icon {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── HOW IT WORKS ── */
.how {
  padding: 100px 0;
  background: var(--card);
}

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.step {
  flex: 1;
  padding: 0 20px;
}

.step-number {
  font-size: 13px;
  font-weight: 800;
  color: var(--text-secondary);
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.step-content h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: -0.5px;
  margin-bottom: 10px;
}

.step-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-divider {
  width: 1px;
  height: 80px;
  background: var(--separator);
  align-self: center;
  flex-shrink: 0;
}

/* ── LIVE MAP ── */
.mapview-section {
  padding: 100px 0 100px;
  background: var(--bg);
}

.mapview-text {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
  text-align: center;
  margin-bottom: 56px;
}

.mapview-wrap {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
  height: 420px;
}

.mapview-inner {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 8px 48px rgba(0,0,0,0.08);
  background: #fff;
  padding: 32px 40px;
}

.mapview-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.mapview-dots {
  position: absolute;
  top: 32px;
  left: 40px;
  right: 40px;
  bottom: 32px;
}

.md {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--s);
  height: var(--s);
  border-radius: 50%;
  background: var(--c);
  transform: translate(-50%, -50%);
  animation: mapPulse 3s ease-in-out infinite;
  animation-delay: var(--d);
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

@keyframes mapPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.65; }
  50% { transform: translate(-50%, -50%) scale(1.18); opacity: 0.82; }
}

@media (max-width: 900px) {
  .mapview-text, .mapview-wrap { padding: 0 20px; }
  .mapview-wrap { height: 280px; }
}

/* ── APP PREVIEW ── */
.preview { padding: 100px 0; background: var(--bg); }

.preview-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 20px;
  align-items: start;
}

.preview-left { display: flex; flex-direction: column; gap: 16px; }

.preview-streak {
  background: #3a3a3c;
  border-radius: 24px;
  padding: 24px 28px;
}
.preview-streak-num {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
}
.preview-streak-label {
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-top: 6px;
}

.preview-topmod {
  background: var(--card);
  border-radius: 24px;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}
.preview-topmod-dot { width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0; }
.preview-topmod-info { display: flex; flex-direction: column; gap: 3px; flex: 1; }
.preview-topmod-label { font-size: 10px; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }
.preview-topmod-name { font-size: 16px; font-weight: 700; color: var(--text-strong); }
.preview-topmod-count { font-size: 20px; font-weight: 800; color: var(--text-strong); }

.preview-insights {
  background: var(--card);
  border-radius: 24px;
  padding: 18px 22px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.preview-insights-top { display: flex; align-items: center; gap: 14px; }
.preview-insights-dot { width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0; }
.preview-insights-title { font-size: 16px; font-weight: 700; color: var(--text-strong); }
.preview-insights-sub { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.preview-bar-track {
  display: flex;
  height: 10px;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}
.preview-bar-track div { flex: 1; }
.preview-insights-bar { position: relative; }
.preview-bar-dot {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid rgba(0,0,0,0.1);
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* Calendar */
.preview-cal {
  background: var(--card);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}
.preview-cal-labels {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  margin-bottom: 12px;
}
.preview-cal-labels span {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
}
.preview-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}
.pc {
  aspect-ratio: 1;
  border-radius: 50%;
  width: var(--s);
  height: var(--s);
  margin: auto;
  opacity: 0;
  transform: scale(0);
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.pc.visible {
  opacity: 1;
  transform: scale(1);
}
.pc[style*="opacity:.3"].visible {
  opacity: 0.3;
}

.preview-bar-dot {
  transition: left 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes insightsDot {
  0%   { left: 18%; }
  40%  { left: 38%; }
  70%  { left: 25%; }
  100% { left: 18%; }
}

@media (max-width: 900px) {
  .preview-grid { grid-template-columns: 1fr; }
}

/* ── VIBE SECTION ── */
.vibe-section {
  padding: 120px 0;
  background-color: #5ECC6E;
  transition: background-color 0.7s ease;
}

.vibe-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 40px;
  text-align: center;
}

.vibe-title {
  font-family: 'Montserrat Alternates', sans-serif;
  font-size: clamp(64px, 10vw, 96px);
  font-weight: 700;
  color: #fff;
  letter-spacing: -3px;
  line-height: 1.0;
  margin-bottom: 24px;
}

.vibe-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.82);
  line-height: 1.6;
  margin-bottom: 56px;
}

.vibe-label {
  font-family: 'Montserrat Alternates', sans-serif;
  font-size: clamp(64px, 10vw, 96px);
  font-weight: 300;
  letter-spacing: -3px;
  line-height: 1.0;
  color: rgba(255,255,255,0.72);
  min-height: 1.1em;
  margin-top: 40px;
  margin-bottom: 0;
  transition: opacity 0.25s ease;
}

.vibe-dots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
}

.vibe-dot {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2.5px solid rgba(255,255,255,0.6);
  background: transparent;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.35s, background 0.35s;
}

.vibe-dot.active {
  transform: scale(1.3);
  border-color: #fff;
  background: rgba(255,255,255,0.22);
}

/* ── DOWNLOAD ── */
.download {
  padding: 100px 0;
  background: var(--text-strong);
}

.download-inner {
  text-align: center;
}

.download h2 {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 900;
  color: #fff;
  letter-spacing: -2px;
  margin-bottom: 16px;
}

.download p {
  font-size: 18px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 48px;
}

.download-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  text-decoration: none;
  padding: 16px 28px;
  border-radius: 18px;
  transition: background 0.2s, transform 0.15s;
  min-width: 180px;
}
.btn-store:hover {
  background: rgba(255,255,255,0.18);
  transform: translateY(-2px);
}
.btn-store div { text-align: left; }
.btn-store small {
  display: block;
  font-size: 11px;
  opacity: 0.6;
  font-weight: 500;
}
.btn-store strong {
  font-size: 16px;
  font-weight: 700;
}

/* ── FOOTER ── */
.footer {
  padding: 40px;
  text-align: center;
  background: var(--bg);
  border-top: 1px solid var(--separator);
}

.footer .nav-logo { display: block; margin: 0 auto 8px; height: 22px; }

.footer p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.footer-copy {
  font-size: 12px !important;
  margin-top: 4px;
}

.footer-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin: 16px 0;
}

.footer-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  color: var(--text-strong);
  background: var(--bg);
  border: 1.5px solid var(--separator);
  transition: transform 0.15s, opacity 0.15s;
}
.footer-btn:hover { transform: translateY(-2px); opacity: 0.8; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    gap: 48px;
    padding-top: 100px;
  }
  .hero-inner { max-width: 100%; }
  .mood-bar { justify-content: center; }
  .hero-actions { justify-content: center; }

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

  .steps { flex-direction: column; gap: 32px; }
  .step-divider { width: 80px; height: 1px; align-self: auto; margin: 0 20px; display: none; }

  .vibe-dots { gap: 10px; }
  .vibe-dot { width: 32px; height: 32px; }
  .vibe-title { letter-spacing: -1.5px; }
  .vibe-sub br { display: none; }
}

@media (max-width: 600px) {
  .nav { padding: 16px 20px; }
  .section-inner { padding: 0 20px; }
  .hero { padding: 90px 20px 60px; }
  .feature-grid { grid-template-columns: 1fr; }
  .hero-phone { display: flex; justify-content: center; }
  .phone-frame { width: 180px; }
  .features, .how, .spectrum, .download { padding: 72px 0; }
}