:root {
  --primary-color: #2D5A27; /* From the icon */
  --primary-light: #4A7C43;
  --bg-color: #F8FAF8;
  --surface-color: #FFFFFF;
  --text-main: #1A2219;
  --text-muted: #647466;
  --border-color: rgba(45, 90, 39, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --shadow-sm: 0 4px 6px -1px rgba(45, 90, 39, 0.05), 0 2px 4px -1px rgba(45, 90, 39, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(45, 90, 39, 0.08), 0 4px 6px -2px rgba(45, 90, 39, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(45, 90, 39, 0.1), 0 10px 10px -5px rgba(45, 90, 39, 0.04);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: 'Inter', 'Noto Serif SC', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

html {
  scroll-behavior: smooth;
}

/* Utilities */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-tag {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-color);
  background-color: rgba(45, 90, 39, 0.1);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 100px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 4px 14px 0 rgba(45, 90, 39, 0.39);
}

.btn-primary:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 90, 39, 0.4);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-ghost:hover {
  background-color: rgba(45, 90, 39, 0.05);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 0;
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 12px 0;
  background-color: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 1px;
}

.nav-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--primary-color);
}

.nav-cta {
  background-color: var(--primary-color);
  color: white !important;
  padding: 10px 20px;
  border-radius: 100px;
}

.nav-cta:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 24px 60px;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s infinite alternate ease-in-out;
}

.hero-orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(45,90,39,0.15) 0%, rgba(248,250,248,0) 70%);
  top: -100px;
  right: -100px;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(144,238,144,0.15) 0%, rgba(248,250,248,0) 70%);
  bottom: -50px;
  left: -100px;
  animation-delay: -5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, 50px) scale(1.05); }
  100% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
  animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-title-main {
  display: block;
  font-size: 80px;
  font-weight: 800;
  letter-spacing: 16px;
  margin-right: -16px; /* offset letter-spacing */
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text-main) 0%, var(--primary-color) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
}

.hero-title-sub {
  display: block;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 8px;
  color: var(--text-muted);
  margin-bottom: 24px;
  animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-desc {
  font-size: 20px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
  animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

.hero-icon-showcase {
  animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.5s both;
}

.hero-app-icon {
  width: 120px;
  height: 120px;
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
  border: 4px solid white;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 50px;
  border: 2px solid var(--border-color);
  border-radius: 20px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-dot {
  width: 6px;
  height: 6px;
  background-color: var(--primary-color);
  border-radius: 50%;
  animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(20px); opacity: 0; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Features Section */
.features {
  padding: 120px 0;
  background-color: white;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.feature-card {
  background-color: var(--bg-color);
  padding: 40px;
  border-radius: var(--radius-lg);
  transition: var(--transition);
  border: 1px solid transparent;
}

.feature-card:hover {
  transform: translateY(-8px);
  background-color: white;
  border-color: var(--border-color);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background-color: rgba(45, 90, 39, 0.1);
  color: var(--primary-color);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background-color: var(--primary-color);
  color: white;
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
}

/* Philosophy Section */
.philosophy {
  padding: 120px 0;
  background-color: var(--bg-color);
}

.philosophy-layout {
  display: flex;
  align-items: center;
  gap: 80px;
}

.philosophy-text {
  flex: 1;
}

.philosophy-text h2 {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.2;
}

.philosophy-text p {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 24px;
}


.philosophy-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  min-height: 500px;
}

.zen-circle {
  position: relative;
  width: 300px;
  height: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.zen-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--primary-color);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulseRing 4s infinite cubic-bezier(0.215, 0.61, 0.355, 1);
}

.zen-ring-1 { width: 100%; height: 100%; animation-delay: 0s; }
.zen-ring-2 { width: 100%; height: 100%; animation-delay: 1.3s; }
.zen-ring-3 { width: 100%; height: 100%; animation-delay: 2.6s; }

.zen-icon {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  position: relative;
  z-index: 10;
  box-shadow: var(--shadow-lg);
}

@keyframes pulseRing {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
  100% { transform: translate(-50%, -50%) scale(1.8); opacity: 0; }
}

/* Screenshots Section */
.screenshots {
  padding: 120px 0;
  background-color: white;
}

.preview-cards {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.preview-card {
  text-align: center;
  width: 300px;
}

.preview-mockup {
  width: 280px;
  height: 580px;
  background-color: var(--text-main);
  border-radius: 40px;
  padding: 12px;
  margin: 0 auto 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.mockup-screen {
  width: 100%;
  height: 100%;
  background-color: var(--bg-color);
  border-radius: 30px;
  overflow: hidden;
  position: relative;
  padding: 20px;
}

.m-status-bar {
  font-size: 10px;
  font-weight: 600;
  margin-bottom: 20px;
  text-align: left;
}

/* Home Mockup */
.mockup-home .m-greeting { font-size: 18px; font-weight: 700; margin-bottom: 40px; text-align: left;}
.mockup-home .m-days { font-size: 14px; text-align: center; margin-bottom: 40px;}
.mockup-home .m-days span { font-size: 64px; font-weight: 800; color: var(--primary-color); display: block; line-height: 1;}
.mockup-home .m-quote { font-size: 12px; color: var(--text-muted); font-style: italic; margin-bottom: 60px;}
.mockup-home .m-buttons { display: flex; flex-direction: column; gap: 12px; }
.mockup-home .m-btn { background: var(--primary-color); color: white; padding: 16px; border-radius: 16px; font-size: 14px; font-weight: 600; }
.mockup-home .m-btn-alt { background: white; color: var(--text-main); border: 1px solid var(--border-color); }

/* Stats Mockup */
.mockup-stats .m-section-title { font-size: 16px; font-weight: 700; text-align: left; margin-bottom: 20px;}
.mockup-stats .m-heatmap { display: flex; flex-direction: column; gap: 4px; margin-bottom: 40px; }
.mockup-stats .m-heat-row { height: 20px; background: linear-gradient(90deg, rgba(45,90,39,0.1) 0%, rgba(45,90,39,0.5) 50%, rgba(45,90,39,0.9) 100%); border-radius: 4px;}
.mockup-stats .m-chart { display: flex; align-items: flex-end; justify-content: space-between; height: 150px; gap: 8px; margin-top: auto; position: absolute; bottom: 20px; left: 20px; right: 20px;}
.mockup-stats .m-bar { width: 100%; background-color: var(--primary-color); border-radius: 4px 4px 0 0; opacity: 0.8;}

/* Breath Mockup */
.mockup-breath { display: flex; flex-direction: column; align-items: center; justify-content: center;}
.mockup-breath .m-status-bar { position: absolute; top: 20px; left: 20px; }
.mockup-breath .m-breath-title { position: absolute; top: 60px; font-weight: 700;}
.mockup-breath .m-breath-circle { width: 180px; height: 180px; border-radius: 50%; background: rgba(45,90,39,0.1); display: flex; align-items: center; justify-content: center; position: relative;}
.mockup-breath .m-breath-inner { width: 120px; height: 120px; border-radius: 50%; background: var(--primary-color); display: flex; flex-direction: column; align-items: center; justify-content: center; color: white;}
.mockup-breath .m-breath-text { font-size: 14px; opacity: 0.8; }
.mockup-breath .m-breath-count { font-size: 32px; font-weight: 700; }
.mockup-breath .m-breath-timer { position: absolute; bottom: 40px; font-size: 14px; font-weight: 600; color: var(--text-muted);}

.preview-card h4 {
  font-size: 20px;
  margin-bottom: 8px;
}

.preview-card p {
  color: var(--text-muted);
}

/* Download Section */
.download {
  padding: 120px 0;
  background-color: var(--bg-color);
  text-align: center;
}

.download-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.download h2 {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 16px;
}

.download p {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}

.btn-download {
  background-color: var(--text-main);
  color: white;
  padding: 16px 32px;
  font-size: 18px;
}

.btn-download:hover {
  background-color: #000;
  transform: translateY(-2px);
}

.download-note {
  font-size: 14px !important;
  opacity: 0.6;
  margin-bottom: 0 !important;
}

/* Footer */
.footer {
  background-color: white;
  padding: 60px 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
  font-weight: 700;
  font-size: 18px;
}

.footer-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}

.footer-copy {
  font-family: 'Noto Serif SC', serif;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 24px;
}

.footer-legal {
  font-size: 14px;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
  .philosophy-layout {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .hero-title-main { font-size: 60px; letter-spacing: 12px; margin-right: -12px;}
  .nav-links { display: none; }
  .section-header h2 { font-size: 32px; }
  .philosophy-text h2 { font-size: 36px; }
  .download h2 { font-size: 32px; }
}