/* ============================================
   XPLORE V3 — BASE STYLES
   Design System: Bold Sections
   ============================================ */

/* --- Font Faces --- */
@font-face {
  font-family: 'Syncopate';
  src: url('./assets/fonts/Syncopate-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Syncopate';
  src: url('./assets/fonts/Syncopate-Regular-2.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* Fontshare imports */
@import url('https://api.fontshare.com/v2/css?f[]=satoshi@400,500,700&f[]=clash-display@400,500,600,700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors — Dark mode (default) */
  --color-dark: #0A0A0F;
  --color-light: #F0EDE8;
  --color-text-on-dark: #FFFFFF;
  --color-text-on-light: #1a1a1f;
  --color-accent: #0A8F8F;
  --color-accent-hover: #0CB0B0;
  --color-accent-secondary: #D4923E;
  --color-glass-bg: rgba(10, 10, 15, 0.72);
  --color-glass-border: rgba(255, 255, 255, 0.08);

  /* Surfaces */
  --surface-primary: var(--color-dark);
  --surface-secondary: var(--color-light);
  --text-primary: var(--color-text-on-dark);
  --text-secondary: var(--color-text-on-light);
  --text-muted: rgba(255, 255, 255, 0.6);
  --text-muted-light: rgba(26, 26, 31, 0.6);

  /* Typography */
  --font-brand: 'Syncopate', sans-serif;
  --font-heading: 'Clash Display', sans-serif;
  --font-body: 'Satoshi', sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;

  /* Layout */
  --container-max: 1240px;
  --container-wide: 1440px;
  --nav-height: 72px;

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-base: 350ms ease;
  --transition-slow: 600ms ease;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* Light mode overrides */
[data-theme="light"] {
  --surface-primary: var(--color-light);
  --surface-secondary: var(--color-dark);
  --text-primary: var(--color-text-on-light);
  --text-secondary: var(--color-text-on-dark);
  --text-muted: rgba(26, 26, 31, 0.6);
  --text-muted-light: rgba(255, 255, 255, 0.6);
  --color-glass-bg: rgba(240, 237, 232, 0.72);
  --color-glass-border: rgba(0, 0, 0, 0.08);
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--surface-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--wide {
  max-width: var(--container-wide);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip to content link */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: var(--space-lg);
  z-index: 10000;
  padding: 0.75rem 1.5rem;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-brand);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}
.skip-to-content:focus {
  top: var(--space-sm);
}

/* Focus styles for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
}

.heading-hero {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.heading-section {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 3rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.heading-sub {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 500;
}

.text-brand {
  font-family: var(--font-brand);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.text-body {
  font-size: clamp(1rem, 1.1vw, 1.125rem);
  line-height: 1.7;
}

.text-body-lg {
  font-size: clamp(1.125rem, 1.3vw, 1.3rem);
  line-height: 1.7;
}

.text-sm {
  font-size: 0.875rem;
}

.text-xs {
  font-size: 0.75rem;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-family: var(--font-brand);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(10, 143, 143, 0.3);
}

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

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

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  padding: 0.5rem 0;
  border-bottom: 1.5px solid var(--color-accent);
}

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

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: var(--color-glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-glass-border);
  transition: background var(--transition-base);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav__logo img {
  height: 28px;
  width: auto;
}

.nav__logo .logo-light {
  display: none;
}

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

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

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

.nav__link {
  font-family: var(--font-brand);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-primary);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-accent);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

/* Services dropdown */
.nav__dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.nav__dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 240px;
  background: var(--color-glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-xs) 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown.open .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.nav__dropdown-link {
  display: block;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-brand);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav__dropdown-link:hover {
  color: var(--color-accent);
  background: rgba(10, 143, 143, 0.08);
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-glass-border);
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-left: var(--space-xs);
}

.theme-toggle:hover {
  background: rgba(10, 143, 143, 0.15);
  border-color: var(--color-accent);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* Mobile menu */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
  position: relative;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
}

.nav__hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 960px) {
  .nav__hamburger {
    display: flex;
  }

  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 360px;
    height: 100dvh;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: calc(var(--nav-height) + var(--space-lg)) var(--space-lg) var(--space-lg);
    background: var(--color-dark);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  [data-theme="light"] .nav__links {
    background: var(--color-light);
  }

  .nav__links.open {
    transform: translateX(0);
  }

  .nav__link {
    padding: 0.75rem 0;
    font-size: 0.7rem;
    width: 100%;
    border-bottom: 1px solid var(--color-glass-border);
  }

  .nav__dropdown-menu {
    position: static;
    transform: none;
    background: transparent;
    backdrop-filter: none;
    border: none;
    padding: 0 0 0 var(--space-sm);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    display: none;
  }

  .nav__dropdown.open .nav__dropdown-menu {
    display: block;
    transform: none;
  }

  .nav__dropdown-link {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-glass-border);
  }

  .theme-toggle {
    margin-left: 0;
    margin-top: var(--space-sm);
  }
}

/* --- Footer --- */
.footer {
  background: #0A0A0F;
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-3xl) 0 var(--space-lg);
}

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

.footer__heading {
  font-family: var(--font-brand);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: var(--space-md);
}

.footer__link {
  display: block;
  font-family: var(--font-brand);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  padding: 0.35rem 0;
  transition: color var(--transition-fast);
}

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

.footer__social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(10, 143, 143, 0.1);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copyright {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.03em;
}

.footer__attribution a {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.35);
  transition: color var(--transition-fast);
}

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

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* --- Scroll animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(2) { transition-delay: 80ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(3) { transition-delay: 160ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(4) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(5) { transition-delay: 320ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(6) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(7) { transition-delay: 480ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(8) { transition-delay: 560ms; opacity: 1; transform: translateY(0); }
.stagger-children.visible > *:nth-child(9) { transition-delay: 640ms; opacity: 1; transform: translateY(0); }

/* Mobile responsive fixes */
@media (max-width: 640px) {
  .btn {
    white-space: normal;
    text-align: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.7rem;
  }
  .nav__logo img {
    width: 180px !important;
  }
}