/* ==========================================================================
   greeeeen — Japanese Matcha & Botanical Studio
   Main Stylesheet
   ========================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
  --color-primary: #173826;
  --color-primary-light: #2d6a4f;
  --color-primary-dark: #0a1a12;
  --color-matcha: #40916c;
  --color-matcha-vibrant: #52b788;
  --color-matcha-soft: #d8f3dc;
  --color-bamboo: #e9c46a;
  --color-shiso: #7b2cbf;
  --color-shiso-soft: #f3e8f8;
  --color-bg: #f9fbf9;
  --color-surface: #ffffff;
  --color-surface-muted: #eef4f0;
  --color-text: #1d2d24;
  --color-text-muted: #56685d;
  --color-text-light: #ffffff;
  --color-border: #d4ded6;
  --color-border-light: #e6eee8;

  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-serif: "Georgia", "Times New Roman", serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 5px rgba(10, 26, 18, 0.04);
  --shadow-md: 0 6px 18px rgba(10, 26, 18, 0.08);
  --shadow-lg: 0 14px 36px rgba(10, 26, 18, 0.12);

  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
  --header-height: 74px;
}

/* --- Reset & Base Styles --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-matcha-vibrant);
  outline-offset: 2px;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary-dark);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

h1 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); letter-spacing: -0.5px; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.3rem); letter-spacing: -0.3px; }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.5rem); }
h4 { font-size: 1.15rem; }

p {
  margin-bottom: 1.2rem;
}

p.lead {
  font-size: 1.18rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --- Layout Containers --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section-alt {
  background-color: var(--color-surface-muted);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* --- Header & Navigation --- */
.site-header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-border-light);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--color-primary);
  text-decoration: none;
}

.brand-logo svg {
  width: 28px;
  height: 28px;
}

.brand-logo span.accent {
  color: var(--color-matcha-vibrant);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-weight: 500;
  font-size: 0.96rem;
  color: var(--color-text);
  padding: 0.5rem 0.2rem;
  position: relative;
}

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

.nav-link.active {
  color: var(--color-primary);
  font-weight: 700;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-matcha-vibrant);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-text-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-matcha-soft);
  color: var(--color-primary-dark);
  border-color: var(--color-matcha-soft);
}

.btn-secondary:hover {
  background-color: #c4ecd0;
  border-color: #c4ecd0;
  color: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 0.95rem 2.1rem;
  font-size: 1.05rem;
}

/* --- Badges & Chips --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  line-height: 1;
}

.badge-green {
  background-color: var(--color-matcha-soft);
  color: var(--color-primary);
}

.badge-gold {
  background-color: #fcf4dd;
  color: #8c6600;
}

.badge-purple {
  background-color: var(--color-shiso-soft);
  color: var(--color-shiso);
}

/* --- Hero Section --- */
.hero {
  padding: 5rem 0 4rem 0;
  background: linear-gradient(180deg, rgba(216, 243, 220, 0.45) 0%, rgba(249, 251, 249, 0) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content .badge {
  margin-bottom: 1.25rem;
}

.hero-content h1 {
  margin-bottom: 1.25rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
  margin-bottom: 2.2rem;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.hero-feature-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-matcha);
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-light);
  aspect-ratio: 6 / 5;
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* --- Cards & Grid Layouts --- */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}

.card-image-box {
  width: 100%;
  aspect-ratio: 4 / 3;
  background-color: var(--color-surface-muted);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.card-tagline {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-matcha);
  margin-bottom: 0.5rem;
}

.card-body {
  flex: 1 0 auto;
}

.card-footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* --- Feature Cards --- */
.feature-card {
  text-align: left;
  padding: 2rem;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-matcha-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

/* --- Stats Bar --- */
.stats-banner {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding: 3.5rem 0;
  border-radius: var(--radius-lg);
  margin: 3rem auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-num {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--color-matcha-vibrant);
  line-height: 1.1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.95rem;
  color: #c4d9cb;
  font-weight: 500;
}

/* --- Forms & Inputs --- */
.form-container {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}

label .required {
  color: #c93b2b;
  margin-left: 0.2rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.98rem;
  transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-matcha);
  box-shadow: 0 0 0 3px rgba(82, 183, 136, 0.2);
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  font-size: 0.92rem;
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-hint {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
}

/* --- Accordion / Details --- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--color-border);
}

.faq-item summary {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--color-matcha);
  font-weight: 400;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-content {
  padding: 0 1.5rem 1.25rem 1.5rem;
  color: var(--color-text-muted);
}

/* --- Banner & CTA --- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-text-light);
  padding: 4.5rem 2rem;
  border-radius: var(--radius-lg);
  text-align: center;
  margin: 4rem auto;
}

.cta-banner h2 {
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

.cta-banner p {
  color: #c4d9cb;
  max-width: 620px;
  margin: 0 auto 2rem auto;
  font-size: 1.15rem;
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #a8b8ad;
  padding: 4.5rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand .brand-logo {
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

.footer-brand p {
  color: #a8b8ad;
  font-size: 0.94rem;
  max-width: 320px;
}

.footer-title {
  color: var(--color-text-light);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: #a8b8ad;
  font-size: 0.92rem;
}

.footer-links a:hover {
  color: var(--color-matcha-vibrant);
  transform: translateX(3px);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

/* --- Responsive Adjustments --- */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* Mobile Screens (iPhone & Small Devices) */
@media (max-width: 640px) {
  .site-header {
    height: auto;
    padding: 0.85rem 0;
  }

  .nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .nav-actions {
    display: none;
  }

  .brand-logo {
    font-size: 1.35rem;
  }

  .brand-logo svg {
    width: 24px;
    height: 24px;
  }

  .main-nav {
    gap: 1.2rem;
  }

  .nav-link {
    font-size: 0.92rem;
    padding: 0.35rem 0;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-container {
    padding: 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}