/* ============================================================
   Adopterra — Global Design System
   Design tokens, base reset, typography, shared components
   ============================================================ */

/* --- Custom Properties (Design Tokens) --- */
:root {
  --color-bg:      #F5F2EC;
  --color-text:    #0D0C0A;
  --color-accent:  #C8491A;
  --color-muted:   #7A766D;
  --color-dark:    #0D0C0A;

  --font-display: 'Noto Serif JP', serif;
  --font-ui:      'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --section-padding: clamp(88px, 11vw, 144px);
  --container-max:   1200px;
  --container-px:    clamp(20px, 5vw, 80px);

  --radius-card: 2px;
  --transition:  0.3s ease;
}

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

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  cursor: none; /* replaced by custom cursor */
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: none;
  font-family: inherit;
  border: none;
  background: none;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* --- Typography Scale --- */
.display {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.label {
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* --- Scroll Progress Bar --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background-color: var(--color-accent);
  z-index: 1000;
  transition: width 0.1s linear;
}

/* --- Custom Cursor --- */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  background-color: var(--color-accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease, opacity 0.3s ease;
}

.cursor.is-hovering {
  transform: translate(-50%, -50%) scale(3);
  opacity: 0.4;
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding-block: 20px;
  transition: background-color var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: var(--color-bg);
  border-bottom-color: rgba(13, 12, 10, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.site-nav a {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  transition: color var(--transition);
}

.site-nav a:hover {
  color: var(--color-text);
}

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* --- Breadcrumb --- */
.breadcrumb {
  padding-top: calc(var(--header-height, 72px) + 24px);
  padding-bottom: 0;
}

.breadcrumb .container {
  display: flex;
  align-items: center;
}

.breadcrumb a {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition), gap var(--transition);
}

.breadcrumb a:hover {
  color: var(--color-text);
  gap: 12px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 16px 32px;
  border-radius: var(--radius-card);
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
}

.btn-primary:hover {
  background-color: #a83a14;
  border-color: #a83a14;
}

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

.btn-outline:hover {
  background-color: var(--color-text);
  color: var(--color-bg);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-muted);
  border: 1px solid rgba(122, 118, 109, 0.3);
}

.btn-ghost:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Marquee --- */
.marquee-wrap {
  overflow: hidden;
  border-top: 1px solid rgba(13, 12, 10, 0.1);
  border-bottom: 1px solid rgba(13, 12, 10, 0.1);
  padding-block: 14px;
}

.marquee-track {
  display: flex;
  gap: 56px;
  width: max-content;
  animation: marquee 28s linear infinite;
}

.marquee-track span {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
  white-space: nowrap;
}

.marquee-track .dot {
  color: var(--color-accent);
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid rgba(13, 12, 10, 0.08);
  padding-block: 40px;
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.footer-copy a {
  color: var(--color-muted);
  transition: color var(--transition);
}

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

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(13, 12, 10, 0.6);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background-color: var(--color-bg);
  width: 100%;
  max-width: 520px;
  padding: 48px;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 1.4rem;
  transition: color var(--transition);
  line-height: 1;
}

.modal-close:hover {
  color: var(--color-text);
}

.modal-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 32px;
  border-bottom: 1px solid rgba(13, 12, 10, 0.1);
}

.modal-tab {
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  padding: 12px 16px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}

.modal-tab.active {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

.modal-tab-content {
  display: none;
}

.modal-tab-content.active {
  display: block;
}

.modal h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.6rem;
  margin-bottom: 8px;
  line-height: 1.2;
}

.modal p {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
  line-height: 1.6;
}

/* --- Form Styles --- */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background-color: transparent;
  border: 1px solid rgba(13, 12, 10, 0.2);
  padding: 14px 16px;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 0.95rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
  border-radius: var(--radius-card);
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-text);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-muted);
}

/* Honeypot — hidden from real users */
.form-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  tab-index: -1;
}

.form-error {
  font-size: 0.78rem;
  color: var(--color-accent);
  margin-top: 6px;
  display: none;
}

.form-group.has-error input,
.form-group.has-error select {
  border-color: var(--color-accent);
}

.form-group.has-error .form-error {
  display: block;
}

.form-submit-wrap {
  margin-top: 24px;
}

.form-submit-wrap .btn {
  width: 100%;
}

.form-success {
  display: none;
  text-align: center;
  padding: 32px 0;
}

.form-success p {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.3rem;
  color: var(--color-text);
  margin-bottom: 0;
}

.form-success small {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-top: 8px;
  display: block;
}

/* --- Utilities --- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  body {
    cursor: auto; /* Restore default cursor on touch */
  }

  .cursor {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: fixed;
    inset: 0;
    background-color: var(--color-bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    z-index: 99;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    font-size: 1.1rem;
  }

  button {
    cursor: auto;
  }

  .modal {
    padding: 32px 24px;
  }

  .modal-tabs {
    gap: 0;
    overflow-x: auto;
  }

  .site-footer .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}