/* STYLE.CSS — Design Tokens & Component Styles */

/* ============================================
   DESIGN TOKENS
   Professional Business — Deep Navy + Gold
   ============================================ */

:root,
[data-theme='light'] {
  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Spacing (4px system) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Noto Serif SC', 'Songti SC', serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transition */
  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* === LIGHT MODE — Mist blue canvas and clean white surfaces === */
  --color-bg: #f3f6fa;
  --color-surface: #ffffff;
  --color-surface-2: #edf2f7;
  --color-surface-offset: #e6edf5;
  --color-surface-dynamic: #dce5ef;
  --color-divider: #dce3ec;
  --color-border: #bcc9d8;

  --color-text: #1a1d24;
  --color-text-muted: #5a5f6a;
  --color-text-faint: #9aa0a8;
  --color-text-inverse: #f3f6fa;

  /* Primary — Deep Navy */
  --color-primary: #0c2340;
  --color-primary-hover: #081a30;
  --color-primary-active: #051120;

  /* Accent — Gold */
  --color-accent: #b8860b;
  --color-accent-hover: #9a7309;
  --color-accent-active: #7c5e08;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(12, 35, 64, 0.08);
  --shadow-md: 0 4px 16px rgba(12, 35, 64, 0.1);
  --shadow-lg: 0 12px 40px rgba(12, 35, 64, 0.15);
}

/* DARK MODE */
[data-theme='dark'] {
  --color-bg: #101822;
  --color-surface: #182330;
  --color-surface-2: #1d2a39;
  --color-surface-offset: #223142;
  --color-surface-dynamic: #293a4e;
  --color-divider: #2c3b4e;
  --color-border: #40536a;

  --color-text: #e2e6ed;
  --color-text-muted: #a6b3c4;
  --color-text-faint: #5c6678;
  --color-text-inverse: #101822;

  /* Primary — Deep Navy (brighter for dark bg) */
  --color-primary: #2a4d7a;
  --color-primary-hover: #1a3a5e;
  --color-primary-active: #122a44;

  /* Accent — Gold (brighter for dark bg) */
  --color-accent: #d4a843;
  --color-accent-hover: #c89732;
  --color-accent-active: #b8860b;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.45);
}

/* System dark mode fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #101822;
    --color-surface: #182330;
    --color-surface-2: #1d2a39;
    --color-surface-offset: #223142;
    --color-surface-dynamic: #293a4e;
    --color-divider: #2c3b4e;
    --color-border: #40536a;
    --color-text: #e2e6ed;
    --color-text-muted: #a6b3c4;
    --color-text-faint: #5c6678;
    --color-text-inverse: #101822;
    --color-primary: #2a4d7a;
    --color-primary-hover: #1a3a5e;
    --color-primary-active: #122a44;
    --color-accent: #d4a843;
    --color-accent-hover: #c89732;
    --color-accent-active: #b8860b;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.45);
  }
}


/* ============================================
   LAYOUT UTILITIES
   ============================================ */

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-32));
}

.section--tight {
  padding-block: clamp(var(--space-8), 4vw, var(--space-16));
}

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
  display: block;
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-10);
}


/* ============================================
   HEADER / NAV
   ============================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-interactive);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo__svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo__name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
}

.logo__sub {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
}

.nav__links a:hover {
  color: var(--color-accent);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}

.nav__cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-accent);
  background: var(--color-surface-offset);
}

.menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }
  .menu-btn {
    display: none;
  }
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-8) var(--space-4);
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-menu--open {
  display: flex;
}

.mobile-menu a {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-divider);
}

.mobile-menu a:hover {
  color: var(--color-accent);
}


/* ============================================
   HERO
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

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

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    in oklab,
    color-mix(in oklab, var(--color-bg) 80%, transparent) 0%,
    color-mix(in oklab, var(--color-bg) 92%, transparent) 60%,
    var(--color-bg) 100%
  );
}

[data-theme='dark'] .hero__overlay,
:root:not([data-theme]) .hero__overlay {
  background: linear-gradient(
    in oklab,
    color-mix(in oklab, #101822 75%, transparent) 0%,
    color-mix(in oklab, #101822 90%, transparent) 60%,
    #101822 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-16) var(--space-4);
  width: 100%;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: color-mix(in oklab, var(--color-accent) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--color-accent) 30%, transparent);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-size: var(--text-3xl);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  max-width: 16ch;
}

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

.hero__desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 50ch;
  margin-bottom: var(--space-10);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-interactive);
  min-height: 52px;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-16);
  max-width: 600px;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.hero__stat-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-accent);
}

.hero__stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .hero__stats {
    grid-template-columns: repeat(4, 1fr);
  }
}


/* ============================================
   ABOUT SECTION
   ============================================ */

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

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 768px) {
  .about__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.about__text h2 {
  margin-bottom: var(--space-4);
}

.about__text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.about__features {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.about__feature {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.about__feature-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--color-accent) 10%, transparent);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__feature-text strong {
  display: block;
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.about__feature-text span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.about__visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-lg);
}

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


/* ============================================
   PRODUCTS SECTION
   ============================================ */

.products {
  background: var(--color-bg);
}

.products__header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.products__header .section-subtitle {
  margin-inline: auto;
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .products__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .products__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card__img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.product-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .product-card__img img {
  transform: scale(1.05);
}

.product-card__body {
  padding: var(--space-5) var(--space-5) var(--space-6);
}

.product-card__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.product-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.product-card__tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: color-mix(in oklab, var(--color-accent) 10%, transparent);
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-top: var(--space-3);
}


/* ============================================
   TRUST / SOCIAL PROOF
   ============================================ */

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

.trust__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .trust__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .trust__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.trust__card {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-interactive);
}

.trust__card:hover {
  border-color: var(--color-accent);
}

.trust__card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  color: var(--color-accent);
}

.trust__card h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.trust__card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}


/* ============================================
   CONTACT CTA
   ============================================ */

.contact {
  position: relative;
  background: var(--color-primary);
  color: #fff;
  overflow: hidden;
}

[data-theme='dark'] .contact,
:root:not([data-theme]) .contact {
  background: linear-gradient(135deg, #0c2340 0%, #223142 100%);
}

.contact__bg {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(212, 168, 67, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(42, 77, 122, 0.4) 0%, transparent 50%);
}

.contact__inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-4);
  text-align: center;
}

.contact__title {
  font-size: var(--text-2xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
  color: #fff;
}

.contact__desc {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.7);
  max-width: 50ch;
  margin: 0 auto var(--space-10);
}

.contact__info {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  max-width: 800px;
  margin: 0 auto var(--space-10);
}

@media (min-width: 640px) {
  .contact__info {
    grid-template-columns: repeat(3, 1fr);
  }
}

.contact__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.contact__item-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(212, 168, 67, 0.15);
  color: #d4a843;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.contact__item-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.5);
}

.contact__item-value {
  font-size: var(--text-base);
  font-weight: 600;
  color: #fff;
}

.contact__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-10);
  background: var(--color-accent);
  color: #fff;
  font-size: var(--text-base);
  font-weight: 700;
  border-radius: var(--radius-full);
  transition: all var(--transition-interactive);
}

.contact__cta:hover {
  background: #c89732;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(212, 168, 67, 0.3);
}


/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) var(--space-4) var(--space-8);
}

.footer__inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: center;
  text-align: center;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer__name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
}

.footer__info {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.8;
}

.footer__info a {
  color: var(--color-accent);
}

.footer__icp {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-2);
}

.footer__icp a {
  color: var(--color-text-faint);
}

.footer__icp a:hover {
  color: var(--color-accent);
}


/* ============================================
   MAP
   ============================================ */

.contact__map {
  margin-top: var(--space-12);
  max-width: 900px;
  margin-inline: auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

#map {
  width: 100%;
  height: 400px;
  z-index: 1;
}

@media (max-width: 640px) {
  #map {
    height: 300px;
  }
}

.contact__map-info {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--text-sm);
  flex-wrap: wrap;
}

.contact__map-info svg {
  flex-shrink: 0;
  color: #d4a843;
}

.contact__map-link {
  margin-left: auto;
  color: #d4a843;
  font-weight: 600;
  transition: opacity var(--transition-interactive);
}

.contact__map-link:hover {
  opacity: 0.8;
}

/* Leaflet popup styling */
.leaflet-popup-content-wrapper {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.leaflet-popup-content {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.6;
  margin: var(--space-3) var(--space-4);
}

.leaflet-popup-content strong {
  font-family: var(--font-display);
  font-size: var(--text-base);
  display: block;
  margin-bottom: var(--space-1);
}

.custom-marker {
  background: none !important;
  border: none !important;
}


/* ============================================
   SCROLL REVEAL
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}