/* ========================
   LAYOUT — Page structure (M3 tokens)
   ======================== */

/* Site wrapper — single column, nav lives in the header */
.site {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

/* Header (M3 Top App Bar with Modern Navbar) */
.header {
  background-color: var(--md-surface);
  box-shadow: var(--md-elevation-2);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom-left-radius: var(--md-shape-large);
  border-bottom-right-radius: var(--md-shape-large);
}

.header .navbar {
  box-shadow: none;
  border-radius: 0;
  background-color: transparent;
}

.header .navbar__inner {
  max-width: var(--md-layout-max-width);
  margin: 0 auto;
}

/* Main content */
.main {
  width: 100%;
  max-width: var(--md-layout-max-width);
  margin: 0 auto;
  padding: var(--md-spacing-10) var(--md-spacing-6);
}

/* Section */
.section {
  margin-bottom: var(--md-spacing-16);
}

.section--hero {
  min-height: 25vh;
  max-height: 40vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Hero background wrapper */
.hero-bg-wrapper {
  position: relative;
  overflow: hidden;
  margin-bottom: var(--md-spacing-16);
}

/* Full-viewport hero (landing page only) */
.hero-bg-wrapper--full {
  margin-left: calc(-50vw + 50%);
  width: 100vw;
  margin-bottom: 0;
  margin-top: calc(-1 * var(--md-spacing-12));
  padding-top: 0;
  height: 100vh;
}

.section--hero-full {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  position: relative;
  z-index: 1;
  padding: 0px var(--md-spacing-6) 80px;
  max-width: var(--md-layout-max-width);
  margin: 0 auto;
}

.hero__content {
  max-width: 700px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--md-spacing-2);
  padding: var(--md-spacing-1) var(--md-spacing-3);
  border-radius: var(--md-shape-full);
  background-color: var(--md-surface-container-high);
  border: var(--md-divider-thickness) solid var(--md-outline-variant);
  margin-bottom: var(--md-spacing-6);
}

.hero__badge .material-symbols-outlined {
  font-size: 14px;
  color: var(--md-primary);
}

.hero__badge span:last-child {
  font-size: var(--md-label-small-size);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--md-on-surface-variant);
}

.hero__headline {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: var(--md-display-large-tracking);
  margin-bottom: var(--md-spacing-8);
}

.hero__accent {
  color: var(--md-primary);
  font-family: 'Dancing Script', cursive;
  font-size: 1.3em;
  font-weight: 700;
  text-shadow: 0 0 20px rgba(153, 255, 204, 0.3);
}

.hero__subtitle {
  font-size: var(--md-title-large-size);
  line-height: var(--md-title-large-line);
  color: var(--md-on-surface-variant);
  max-width: 550px;
  margin-bottom: var(--md-spacing-10);
}

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

.hero__actions .btn--outlined {
  background-color: var(--md-surface-container-high);
}

[data-theme="light"] .hero__actions .btn--outlined {
  color: var(--md-on-surface);
  border-color: var(--md-outline-variant);
}

[data-theme="light"] .hero__actions .btn--outlined:hover {
  background-color: var(--md-primary);
  color: var(--md-on-primary);
  border-color: var(--md-primary);
}

.hero__scroll {
  position: absolute;
  bottom: var(--md-spacing-10);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--md-spacing-2);
}

.hero__scroll span {
  font-size: var(--md-label-small-size);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--md-outline);
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--md-primary), transparent);
}

/* City Grid Background Animation */
.city-grid-bg {
  position: absolute;
  inset: -20% 0 0 0;
  z-index: 0;
  overflow: hidden;
}

.cg-scene {
  perspective: var(--perspective, 1200px);
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.cg-city {
  transform-style: preserve-3d;
  transform:
    rotateX(var(--rotX, 60deg))
    rotateZ(var(--rotZ, -45deg))
    scale(var(--scale, 1));
  transition: transform 0.3s ease;
  display: grid;
  gap: var(--road-width, 6px);
  background-color: var(--road-color, #3a3f54);
  position: relative;
}

.cg-block {
  position: relative;
  background: var(--md-surface);
  transform-style: preserve-3d;
}

.cg-building {
  position: absolute;
  transform-style: preserve-3d;
}

.cg-top, .cg-bottom, .cg-front, .cg-back, .cg-left, .cg-right {
  position: absolute;
  backface-visibility: hidden;
}

.cg-bottom {
  width: 100%;
  height: 100%;
  background: var(--color-right);
}

.cg-top {
  width: 100%;
  height: 100%;
  transform: translateZ(var(--h));
  background: var(--color-top);
}

.cg-front {
  width: 100%;
  height: var(--h);
  bottom: 0;
  left: 0;
  transform-origin: bottom center;
  transform: rotateX(-90deg);
  background: var(--color-front);
}

.cg-back {
  width: 100%;
  height: var(--h);
  top: 0;
  left: 0;
  transform-origin: top center;
  transform: rotateX(90deg);
  background: var(--color-back);
}

.cg-left {
  width: var(--h);
  height: 100%;
  top: 0;
  left: 0;
  transform-origin: center left;
  transform: rotateY(-90deg);
  background: var(--color-left);
}

.cg-right {
  width: var(--h);
  height: 100%;
  top: 0;
  right: 0;
  transform-origin: center right;
  transform: rotateY(90deg);
  background: var(--color-right);
}

/* Tilt-shift overlay */
.cg-tilt {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30%;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  pointer-events: none;
  z-index: 2;
  mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
  display: none;
}

/* Edge fade overlays */
.cg-edge-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  display: none;
}

.cg-fade-top,
.cg-fade-bottom,
.cg-fade-left,
.cg-fade-right {
  position: absolute;
  left: 0;
  right: 0;
}

.cg-fade-top {
  top: 0;
  height: var(--ft, 50%);
  background: linear-gradient(to bottom,
    rgba(var(--md-surface-rgb, 30,30,30), var(--fade-intensity, 1)) 0%,
    rgba(var(--md-surface-rgb, 30,30,30), var(--fade-intensity, 1)) 50%,
    transparent 100%
  );
}

.cg-fade-bottom {
  bottom: 0;
  height: var(--fb, 30%);
  background: linear-gradient(to top,
    rgba(var(--md-surface-rgb, 30,30,30), var(--fade-intensity, 1)) 0%,
    rgba(var(--md-surface-rgb, 30,30,30), var(--fade-intensity, 1)) 30%,
    transparent 100%
  );
}

.cg-fade-left {
  top: 0;
  bottom: 0;
  left: 0;
  right: auto;
  width: var(--fl, 30%);
  background: linear-gradient(to right,
    rgba(var(--md-surface-rgb, 30,30,30), var(--fade-intensity, 1)) 0%,
    rgba(var(--md-surface-rgb, 30,30,30), var(--fade-intensity, 1)) 30%,
    transparent 100%
  );
}

.cg-fade-right {
  top: 0;
  bottom: 0;
  left: auto;
  right: 0;
  width: var(--fr, 30%);
  background: linear-gradient(to left,
    rgba(var(--md-surface-rgb, 30,30,30), var(--fade-intensity, 1)) 0%,
    rgba(var(--md-surface-rgb, 30,30,30), var(--fade-intensity, 1)) 30%,
    transparent 100%
  );
}

.section__title {
  margin-bottom: var(--md-spacing-8);
}

/* Footer */
.footer {
  background-color: var(--md-surface);
  padding: var(--md-spacing-10) var(--md-spacing-6) var(--md-spacing-6);
  border-top: var(--md-divider-thickness) solid var(--md-outline-variant);
  border-top-left-radius: var(--md-shape-large);
  border-top-right-radius: var(--md-shape-large);
}

.footer__inner {
  max-width: var(--md-layout-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--md-spacing-6);
}

.footer__brand {
  flex-shrink: 0;
}

.footer__logo {
  display: inline-flex;
  align-items: center;
}

.footer__logo-img {
  height: 32px;
  width: auto;
}

.footer__logo-light {
  display: none;
}

.footer__logo-dark {
  display: block;
}

[data-theme="light"] .footer__logo-light {
  display: block;
}

[data-theme="light"] .footer__logo-dark {
  display: none;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--md-spacing-6);
  align-items: center;
}

.footer__link {
  color: var(--md-on-surface);
  text-decoration: none;
  font-size: var(--md-body-medium-size);
  line-height: var(--md-body-medium-line);
  transition: color var(--md-motion-duration-short) var(--md-motion-easing-standard);
}

.footer__link:hover {
  color: var(--md-primary);
}

.footer__copyright {
  color: var(--md-on-surface-variant);
  font-size: var(--md-body-small-size);
  flex-shrink: 0;
}

.footer__copyright p {
  margin: 0;
}

/* Footer responsive */
@media (max-width: 768px) {
  .footer__inner {
    flex-direction: column;
    gap: var(--md-spacing-3);
    text-align: center;
  }

  .footer__nav {
    justify-content: center;
  }
}