/* ==========================================================================
   Green Nano Thai - Main Stylesheet
   Design System v1.0 | Ian (Frontend Implementation)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

input, button, textarea, select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   2. Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Colour */
  --color-primary:   #0B2D20;
  --color-accent:    #A5D610;
  --color-surface:   #F7F9F2;
  --color-text:      #1A1A1A;
  --color-text-inv:  #F7F9F2;
  --color-border:    rgba(165, 214, 16, 0.2);
  --color-glass:     rgba(11, 45, 32, 0.03);
  --color-accent-dim: rgba(165, 214, 16, 0.08);

  /* Typography */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --fw-regular:   400;
  --fw-semibold:  600;
  --fw-bold:      700;

  /* Fluid type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.82rem + 0.28vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.6vw,  1.375rem);
  --text-xl:   clamp(1.25rem,  1.1rem  + 0.75vw, 1.75rem);
  --text-2xl:  clamp(1.5rem,   1.2rem  + 1.5vw,  2.25rem);
  --text-3xl:  clamp(2rem,     1.5rem  + 2.5vw,  3.25rem);
  --text-hero: clamp(2.75rem,  2rem    + 3.75vw, 5rem);

  /* Spacing */
  --space-unit:   0.5rem;
  --space-xs:     0.5rem;
  --space-sm:     1rem;
  --space-md:     1.5rem;
  --space-lg:     2rem;
  --space-xl:     2.5rem;
  --space-2xl:    4rem;
  --space-3xl:    6rem;
  --space-section: clamp(3rem, 2rem + 5vw, 6rem);

  /* Borders */
  --radius-btn:  4px;
  --radius-card: 8px;
  --radius-lg:   16px;

  /* Motion */
  --ease-brand:  cubic-bezier(0.23, 1, 0.32, 1);
  --dur-fast:    180ms;
  --dur-base:    300ms;
  --dur-slow:    500ms;

  /* Shadows */
  --shadow-card:  0 2px 12px rgba(11, 45, 32, 0.12);
  --shadow-hover: 0 8px 32px rgba(11, 45, 32, 0.22);
  --shadow-accent: 0 0 24px rgba(165, 214, 16, 0.18);
}

/* --------------------------------------------------------------------------
   3. Base Typography
   -------------------------------------------------------------------------- */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--fw-regular);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--color-surface);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-hero); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
p  { font-size: var(--text-base); line-height: 1.7; }

a {
  color: inherit;
}

/* --------------------------------------------------------------------------
   4. Skip Link
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: var(--fw-semibold);
  font-size: var(--text-sm);
  padding: 0.6em 1.2em;
  border-radius: var(--radius-btn);
  text-decoration: none;
  z-index: 9999;
  transition: top var(--dur-fast) var(--ease-brand);
}

.skip-link:focus {
  top: var(--space-sm);
}

/* --------------------------------------------------------------------------
   5. Navigation
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-sm) var(--space-xl);
  background: transparent;
  transition: background var(--dur-base) var(--ease-brand),
              backdrop-filter var(--dur-base) var(--ease-brand),
              box-shadow var(--dur-base) var(--ease-brand);
}

.nav--scrolled {
  background: var(--color-primary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  max-width: 1280px;
  margin: 0 auto;
}

.nav__logo {
  text-decoration: none;
  flex-shrink: 0;
}

.nav__logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--fw-bold);
  color: var(--color-text-inv);
  letter-spacing: -0.02em;
  line-height: 1;
}

.nav__logo-text span {
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  margin: 0;
  padding: 0;
  margin-left: auto;
}

.nav__links a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-inv);
  text-decoration: none;
  letter-spacing: 0.03em;
  opacity: 0.85;
  transition: opacity var(--dur-fast) var(--ease-brand),
              color var(--dur-fast) var(--ease-brand);
}

.nav__links a:hover,
.nav__links a:focus-visible {
  opacity: 1;
  color: var(--color-accent);
}

.nav__cta {
  margin-left: var(--space-sm);
  flex-shrink: 0;
}

.nav__call {
  display: none;
  margin-left: var(--space-sm);
  flex-shrink: 0;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-inv);
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-brand),
              opacity var(--dur-base) var(--ease-brand);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav menu */
.nav__menu {
  display: none;
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: #0D3A2B;
    padding: var(--space-md) var(--space-xl);
    gap: var(--space-md);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }

  .nav__links.is-open {
    display: flex;
    animation: slideDownIn 300ms var(--ease-brand);
  }

  @keyframes slideDownIn {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .nav__toggle {
    display: flex;
  }

  .nav__cta {
    display: none !important;
  }

  .nav__call {
    display: flex !important;
  }

  /* Ensure menu links are properly spaced and readable on mobile */
  .nav__links a {
    padding: var(--space-sm) 0;
    font-size: var(--text-base);
  }
}

/* --------------------------------------------------------------------------
   6. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-btn);
  padding: 0.75em 1.75em;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-brand),
              border-color var(--dur-fast) var(--ease-brand),
              box-shadow var(--dur-fast) var(--ease-brand),
              transform var(--dur-fast) var(--ease-brand);
  line-height: 1.3;
}

/* Primary - accent lime fill */
.btn--accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary);
}

.btn--accent:hover {
  background: #b8e819;
  border-color: #b8e819;
  box-shadow: var(--shadow-accent);
  transform: translateY(-1px);
}

.btn--accent:active {
  transform: translateY(0);
  box-shadow: none;
  background: #97c40d;
}

/* Secondary - outlined, dark contexts */
.btn--outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text-inv);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-dim);
}

.btn--outline:active {
  background: rgba(165, 214, 16, 0.12);
}

/* Outlined on light surface */
.btn--outline-dark {
  background: transparent;
  border-color: rgba(11, 45, 32, 0.25);
  color: var(--color-primary);
}

.btn--outline-dark:hover {
  border-color: var(--color-primary);
  background: rgba(11, 45, 32, 0.06);
}

/* Focus states - keyboard accessibility */
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   7. Layout Utilities
   -------------------------------------------------------------------------- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section-heading {
  font-size: var(--text-3xl);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.section-heading--inv {
  color: var(--color-text-inv);
}

.section-sub {
  font-size: var(--text-lg);
  color: rgba(26, 26, 26, 0.65);
  max-width: 580px;
  line-height: 1.6;
}

.section-sub--inv {
  color: rgba(247, 249, 242, 0.72);
}

.label-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.surface-dark {
  background: var(--color-primary);
  color: var(--color-text-inv);
}

.surface-light {
  background: var(--color-surface);
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   8. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  background-color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
  padding: calc(var(--space-section) + 80px) var(--space-xl) var(--space-section);
}

.hero__spotlight {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 70% 60% at 50% 40%,
    rgba(165, 214, 16, 0.08) 0%,
    transparent 70%
  );
  pointer-events: none;
}

/* Subtle grain texture overlay */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  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)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  opacity: 0.4;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  text-align: center;
}

.hero__label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  padding: 0.35em 1em;
  border-radius: 999px;
  margin-bottom: var(--space-lg);
}

.hero__heading {
  color: var(--color-text-inv);
  margin-bottom: var(--space-md);
}

.hero__sub {
  color: rgba(247, 249, 242, 0.72);
  font-size: var(--text-lg);
  max-width: 580px;
  margin: 0 auto var(--space-xl);
}

.hero__cta {
  font-size: var(--text-base);
  padding: 0.9em 2.25em;
}

/* Slim page header (non-homepage) */
.page-header {
  position: relative;
  background-color: var(--color-primary);
  padding: calc(80px + var(--space-2xl)) var(--space-xl) var(--space-3xl);
  clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
  overflow: hidden;
  text-align: center;
}

.page-header__spotlight {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 70% at 50% 50%,
    rgba(165, 214, 16, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.page-header__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   8.5 Comparison Section
   -------------------------------------------------------------------------- */
.comparison-section {
  background: var(--color-surface);
  padding: var(--space-section) var(--space-xl);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  max-width: 1200px;
  margin: 0 auto;
}

.comparison-card {
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  min-height: 500px;
}

.comparison-card--nano {
  background: linear-gradient(135deg, #6BA86F 0%, #5A9860 100%);
  color: white;
}

.comparison-card--standard {
  background: linear-gradient(135deg, #D97A6F 0%, #C75D55 100%);
  color: white;
}

.comparison-card__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
  padding-bottom: var(--space-lg);
  border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.comparison-card__icon {
  width: 60px;
  height: 60px;
  stroke-width: 1.5;
  flex-shrink: 0;
}

.comparison-card__header h3 {
  font-size: var(--text-lg);
  font-weight: var(--fw-bold);
  margin: 0;
}

.comparison-card__subtitle {
  font-size: var(--text-xl);
  font-weight: var(--fw-bold);
  margin: 0;
  letter-spacing: 0.5px;
}

.comparison-card__content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.comparison-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.comparison-list li {
  font-size: var(--text-sm);
  line-height: 1.6;
  padding-left: var(--space-lg);
  position: relative;
}

.comparison-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  font-weight: var(--fw-bold);
  font-size: var(--text-base);
}

/* --------------------------------------------------------------------------
   9. Bento Grid
   -------------------------------------------------------------------------- */
.bento {
  background: var(--color-surface);
  padding: var(--space-section) var(--space-xl);
  position: relative;
  z-index: 10;
  margin-top: -80px;
}

.bento .container {
  padding: 0;
}

.bento__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.bento__card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--dur-base) var(--ease-brand),
              border-color var(--dur-base) var(--ease-brand),
              transform var(--dur-base) var(--ease-brand);
}

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

.bento__card--wide {
  grid-column: span 2;
}

.bento__card--dark {
  background: var(--color-primary);
  color: var(--color-text-inv);
  border-color: var(--color-border);
}

.bento__card--dark:hover {
  background: #0f3828;
  border-color: var(--color-accent);
}

.bento__card--image {
  background: transparent;
  border: none;
  padding: 0;
  overflow: hidden;
  gap: 0;
  grid-column: span 2;
  min-height: 300px;
}

.bento__card--image:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: transparent;
}

.bento__card--image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-lg);
}

.bento__card__icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  flex-shrink: 0;
}

.bento__card__label {
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.bento__card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
  color: inherit;
}

.bento__card--dark h3 {
  color: var(--color-text-inv);
}

.bento__card p {
  opacity: 0.78;
  flex: 1;
  color: inherit;
}

.bento__card--dark p {
  color: rgba(247, 249, 242, 0.75);
  opacity: 1;
}

.bento__stat {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.bento__card__action {
  margin-top: auto;
  padding-top: var(--space-lg);
}

/* --------------------------------------------------------------------------
   10. Trust Bar
   -------------------------------------------------------------------------- */
.trust-bar {
  background: var(--color-primary);
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-bar--light {
  background: var(--color-surface);
  border-top: 1px solid rgba(11, 45, 32, 0.08);
  border-bottom: 1px solid rgba(11, 45, 32, 0.08);
}

.trust-bar__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-xl);
  max-width: 1280px;
  margin: 0 auto;
}

.trust-bar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25em;
  text-align: center;
}

.trust-bar__stat {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  line-height: 1;
}

.trust-bar--light .trust-bar__stat {
  color: var(--color-primary);
}

.trust-bar__label {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(247, 249, 242, 0.65);
}

.trust-bar--light .trust-bar__label {
  color: rgba(26, 26, 26, 0.55);
}

.trust-bar__divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* --------------------------------------------------------------------------
   11. Service Row (Alternating)
   -------------------------------------------------------------------------- */
.service-section {
  background: var(--color-surface);
}

.service-section:nth-child(even) {
  background: #fff;
}

.service-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding: var(--space-section) var(--space-xl);
  max-width: 1280px;
  margin: 0 auto;
}

.service-row--reverse {
  direction: rtl;
}

.service-row--reverse > * {
  direction: ltr;
}

.service-row__media {
  max-width: 480px;
  margin: 0 auto;
}

.service-row__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-card);
  object-fit: cover;
  display: block;
  box-shadow: var(--shadow-card);
}

.service-row__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.service-row__content h2 {
  font-size: var(--text-3xl);
  color: var(--color-text);
}

.service-row__content p {
  color: rgba(26, 26, 26, 0.72);
}

.service-row__content ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: 0;
}

.service-row__content ul li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: rgba(26, 26, 26, 0.78);
}

.service-row__content ul li::before {
  content: '';
  width: 18px;
  height: 18px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B2D20' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 70%;
  background-repeat: no-repeat;
  background-position: center;
}

/* --------------------------------------------------------------------------
   12. Feature Cards
   -------------------------------------------------------------------------- */
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: box-shadow var(--dur-base) var(--ease-brand),
              transform var(--dur-base) var(--ease-brand);
}

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

.feature-card--dark {
  background: var(--color-primary);
  color: var(--color-text-inv);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.feature-card__icon svg {
  width: 100%;
  height: 100%;
}

.feature-card__heading {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
  color: inherit;
}

.feature-card__body {
  color: inherit;
  opacity: 0.78;
  flex: 1;
  margin-bottom: var(--space-lg);
}

.feature-card--dark .feature-card__body {
  color: rgba(247, 249, 242, 0.75);
  opacity: 1;
}

.feature-card__action {
  margin-top: auto;
}

/* Feature card grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

/* --------------------------------------------------------------------------
   13. CTA Band
   -------------------------------------------------------------------------- */
.cta-band {
  background: var(--color-primary);
  padding: var(--space-section) var(--space-xl);
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(165, 214, 16, 0.06), transparent 70%);
  pointer-events: none;
}

.cta-band__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-band__heading {
  color: var(--color-text-inv);
  margin-bottom: var(--space-md);
}

.cta-band__sub {
  color: rgba(247, 249, 242, 0.68);
  font-size: var(--text-lg);
  margin-bottom: var(--space-xl);
}

.cta-band__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}
/* --------------------------------------------------------------------------
   14. Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-primary);
  padding: var(--space-section) var(--space-xl) 0;
  color: rgba(247, 249, 242, 0.75);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2.3fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  max-width: 1280px;
  margin: 0 auto;
  padding-bottom: var(--space-2xl);
}

.footer__brand p {
  font-size: var(--text-sm);
  margin-top: var(--space-md);
  line-height: 1.65;
}

.footer__brand-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--fw-bold);
  color: var(--color-text-inv);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.footer__brand-logo span {
  color: var(--color-accent);
}

.footer__address {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(165, 214, 16, 0.2);
  font-size: var(--text-sm);
  line-height: 1.65;
}

.footer__address p {
  margin: 0;
}

.footer__address strong {
  color: var(--color-accent);
  font-weight: var(--fw-bold);
}

.footer__qr-column {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer__qr {
  display: flex;
  justify-content: center;
  margin-top: var(--space-md);
}

.footer__qr img {
  width: 120px;
  height: 120px;
  background: white;
  padding: 8px;
  border-radius: 8px;
}

.footer__nav-heading {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__links a {
  font-size: var(--text-sm);
  color: rgba(247, 249, 242, 0.65);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-brand);
}

.footer__links a:hover,
.footer__links a:focus-visible {
  color: var(--color-accent);
}

.footer__bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: rgba(247, 249, 242, 0.4);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  text-align: center;
}

/* --------------------------------------------------------------------------
   15. FAQ Accordion
   -------------------------------------------------------------------------- */
.faq-section {
  background: var(--color-surface);
  padding: var(--space-section) var(--space-xl);
}

.faq-list {
  max-width: 800px;
  margin: var(--space-2xl) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

details.faq-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: border-color var(--dur-base) var(--ease-brand);
}

details.faq-item[open] {
  border-color: var(--color-accent);
}

summary.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

summary.faq-item__question::after {
  content: '';
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  background: var(--color-accent);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B2D20' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/polyline%3E%3C/svg%3E");
  background-size: 70%;
  background-repeat: no-repeat;
  background-position: center;
  transition: transform var(--dur-base) var(--ease-brand);
}

details.faq-item[open] summary.faq-item__question::after {
  transform: rotate(180deg);
}

summary.faq-item__question:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.faq-item__answer {
  padding: 0 var(--space-xl) var(--space-lg);
  font-size: var(--text-base);
  color: rgba(26, 26, 26, 0.72);
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   16. Contact Form
   -------------------------------------------------------------------------- */
.contact-section {
  background: var(--color-surface);
  padding: var(--space-section) var(--space-xl);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-2xl);
  max-width: 1280px;
  margin: 0 auto;
  align-items: start;
}

.contact-form-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

.contact-form-card h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.contact-form-card .form-intro {
  color: rgba(26, 26, 26, 0.65);
  margin-bottom: var(--space-xl);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid rgba(11, 45, 32, 0.2);
  border-radius: var(--radius-btn);
  padding: 0.75em 1em;
  width: 100%;
  transition: border-color var(--dur-fast) var(--ease-brand),
              box-shadow var(--dur-fast) var(--ease-brand);
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(165, 214, 16, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B2D20' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1em center;
  background-size: 16px;
  padding-right: 3em;
  cursor: pointer;
}

.form-submit {
  margin-top: var(--space-md);
}

.form-submit .btn {
  width: 100%;
  justify-content: center;
  padding: 0.9em 2em;
}

.contact-details-card {
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  color: var(--color-text-inv);
  position: sticky;
  top: 100px;
}

.contact-details-card h3 {
  font-size: var(--text-2xl);
  color: var(--color-text-inv);
  margin-bottom: var(--space-xl);
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent-dim);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.contact-detail-icon svg {
  width: 20px;
  height: 20px;
}

.contact-detail-text strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  margin-bottom: 0.2em;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--text-xs);
}

.contact-detail-text p,
.contact-detail-text a {
  font-size: var(--text-sm);
  color: rgba(247, 249, 242, 0.75);
  text-decoration: none;
  line-height: 1.5;
}

.contact-detail-text a:hover {
  color: var(--color-accent);
}

.map-placeholder {
  margin-top: var(--space-xl);
  background: rgba(165, 214, 16, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(247, 249, 242, 0.4);
  font-size: var(--text-sm);
  text-align: center;
  gap: var(--space-sm);
  flex-direction: column;
}

/* --------------------------------------------------------------------------
   17. About Page
   -------------------------------------------------------------------------- */
.team-section {
  background: #fff;
  padding: var(--space-section) var(--space-xl);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-2xl);
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------------------------------------
   18. Animations
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--dur-slow) var(--ease-brand),
                transform var(--dur-slow) var(--ease-brand);
  }

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

  [data-reveal-delay="1"] { transition-delay: 100ms; }
  [data-reveal-delay="2"] { transition-delay: 200ms; }
  [data-reveal-delay="3"] { transition-delay: 300ms; }
  [data-reveal-delay="4"] { transition-delay: 400ms; }
}

/* --------------------------------------------------------------------------
   19. Responsive Breakpoints
   -------------------------------------------------------------------------- */

/* 1280px - contained max-width already handled */

/* 900px - tablet landscape */
@media (max-width: 900px) {
  .bento__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .bento__card--wide {
    grid-column: span 2;
  }
  .bento__card--image {
    grid-column: span 2;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 768px - tablet portrait */
@media (max-width: 768px) {
  .comparison-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .service-row,
  .service-row--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: var(--space-xl);
  }

  .service-row__media {
    max-width: 100%;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-details-card {
    position: static;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer__brand {
    grid-column: span 2;
  }

  .footer__nav {
    grid-column: span 1;
  }

  .footer__qr-column {
    grid-column: span 2;
  }

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

/* 640px - large mobile */
@media (max-width: 640px) {
  .bento__grid {
    grid-template-columns: 1fr;
  }
  .bento__card--wide {
    grid-column: span 1;
  }
  .bento__card--image {
    grid-column: span 1;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .trust-bar__divider {
    display: none;
  }
}

/* 480px - small mobile */
@media (max-width: 480px) {
  :root {
    --space-xl: 1.25rem;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }
  .footer__brand {
    grid-column: span 1;
  }

  .cta-band__actions {
    flex-direction: column;
    align-items: center;
  }

  .contact-form-card {
    padding: var(--space-lg);
  }

  .hero {
    clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
  }

  .page-header {
    clip-path: polygon(0 0, 100% 0, 100% 97%, 0 100%);
  }
}

/* --------------------------------------------------------------------------
   20. Hero (Updated with Image Layout)
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: var(--space-3xl) var(--space-xl);
  background: var(--color-primary);
  overflow: hidden;
}

.hero__container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero__content {
  color: var(--color-text-inv);
}

.hero__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  background: rgba(165, 214, 16, 0.15);
  padding: 0.5em 1em;
  border-radius: 20px;
  margin-bottom: var(--space-lg);
}

.hero__heading {
  font-size: var(--text-hero);
  line-height: 1.1;
  color: var(--color-text-inv);
  margin-bottom: var(--space-lg);
}

.hero__sub {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: rgba(247, 249, 242, 0.85);
  margin-bottom: var(--space-2xl);
  max-width: 500px;
}

.hero__stats {
  display: flex;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
  text-align: center;
  align-items: center;
  flex: 1;
}

.stat-card__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  line-height: 1;
}

.stat-card__label {
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: rgba(247, 249, 242, 0.7);
}

.hero__ctas {
  display: flex;
  gap: var(--space-md);
}

.hero__image {
  position: relative;
  display: flex;
  align-items: flex-end;
}

.hero__image img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.hero__badge {
  position: absolute;
  bottom: -16px;
  left: 24px;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-surface);
  padding: 1em 1.5em;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.badge-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: rgba(11, 45, 32, 0.1);
  border-radius: 50%;
  font-size: 18px;
}

.badge-text {
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  font-size: var(--text-sm);
}

/* Trust Badges Section */
.trust-badges {
  padding: var(--space-3xl) var(--space-xl);
  background: var(--color-surface);
}

.badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.badge-item {
  text-align: center;
  padding: var(--space-xl);
  background: white;
  border-radius: 12px;
  border: 1px solid rgba(11, 45, 32, 0.08);
  transition: all var(--dur-base) var(--ease-brand);
}

.badge-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 24px rgba(165, 214, 16, 0.12);
  transform: translateY(-4px);
}

.badge-item__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  display: block;
}

.badge-item__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  font-weight: var(--fw-bold);
}

.badge-item__text {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text);
  opacity: 0.7;
}

/* Service Preview Section */
.service-preview {
  padding: var(--space-3xl) var(--space-xl);
  background: var(--color-surface);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.service-card {
  padding: var(--space-2xl);
  background: white;
  border-radius: 12px;
  border: 1px solid rgba(11, 45, 32, 0.08);
  transition: all var(--dur-base) var(--ease-brand);
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 12px 32px rgba(11, 45, 32, 0.1);
  transform: translateY(-4px);
}

.service-card--featured {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.service-card__image {
  width: 100%;
  height: 240px;
  overflow: hidden;
  border-radius: 12px 12px 0 0;
}

.service-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-card--featured .service-card__title,
.service-card--featured .service-card__description,
.service-card--featured .service-card__link {
  margin-left: var(--space-2xl);
  margin-right: var(--space-2xl);
}

.service-card--featured .service-card__title {
  margin-top: var(--space-2xl);
}

.service-card--featured .service-card__link {
  margin-bottom: var(--space-2xl);
}

.service-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  display: block;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  font-weight: var(--fw-bold);
}

.service-card__description {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  color: var(--color-accent);
  font-weight: var(--fw-semibold);
  text-decoration: none;
  transition: all var(--dur-fast) var(--ease-brand);
}

.service-card__link:hover {
  gap: 0.75em;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .hero__container {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .hero__heading {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
  }

  .hero__stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .hero__ctas {
    flex-direction: column;
  }

  .hero__badge {
    left: 16px;
    bottom: -12px;
  }

  .badges-grid,
  .services-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   21. Thai Typography Overrides
   Niran's note: Thai characters break with negative letter-spacing.
   Override any letter-spacing set elsewhere in the design system.
   -------------------------------------------------------------------------- */
:lang(th) h1,
:lang(th) h2,
:lang(th) h3,
:lang(th) h4 {
  letter-spacing: 0;
}

:lang(th) body {
  line-height: 1.8;
}

:lang(th) p {
  line-height: 2.0;
}

/* --------------------------------------------------------------------------
   21. Comparison Section
   -------------------------------------------------------------------------- */
.comparison-section {
  padding: 5rem 0;
  background-color: var(--color-surface);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.comparison-card {
  padding: 3rem 2rem;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  align-items: center;
  text-align: center;
}

.comparison-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.comparison-card--success {
  background: linear-gradient(135deg, #4CAF50 0%, #66BB6A 100%);
  color: #fff;
}

.comparison-card--danger {
  background: linear-gradient(135deg, #EF5350 0%, #F44336 100%);
  color: #fff;
}

.comparison-card__icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: inherit;
  opacity: 0.9;
}

.comparison-card__icon svg {
  width: 100%;
  height: 100%;
}

.comparison-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.3;
  color: inherit;
}

.comparison-card__list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.comparison-card__list li {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: inherit;
}

.comparison-card__list li::before {
  content: "✓";
  flex-shrink: 0;
  font-weight: 700;
  margin-top: 2px;
  opacity: 0.95;
}

/* Responsive: Tablet and below */
@media (max-width: 768px) {
  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .comparison-card {
    padding: 2rem 1.5rem;
  }

  .comparison-card h3 {
    font-size: 1.25rem;
  }

  .comparison-card__list li {
    font-size: 0.9rem;
  }
}

/* --------------------------------------------------------------------------
   22. Print
   -------------------------------------------------------------------------- */
@media print {
  .nav,
  .hero__spotlight,
  .cta-band::before {
    display: none;
  }
  body {
    color: #000;
    background: #fff;
  }
}