/**
 * Design Tokens
 * Central design system variables for consistent theming
 */

:root {
  /* ===========================
     Color Tokens
     =========================== */
  --color-background: #000000;
  --color-surface: rgba(188, 180, 212, 0.1);
  --color-surface-strong: rgba(12, 12, 12, 0.96);
  --color-primary: #bcb4d4;
  --color-primary-strong: #f0ebff;
  --color-text: #f7f5ff;
  --color-text-muted: rgba(247, 245, 255, 0.75);
  --color-divider: rgba(188, 180, 212, 0.16);

  /* ===========================
     Typography Tokens
     =========================== */
  --font-sans: 'Manrope', 'Helvetica Neue', 'Segoe UI', arial, sans-serif;
  --font-serif: 'Cormorant Garamond', 'Playfair Display', 'Times New Roman', serif;

  /* Font sizes */
  --text-xs: 0.7rem;
  --text-sm: 0.75rem;
  --text-base: 0.85rem;
  --text-md: 1rem;
  --text-lg: 1.05rem;
  --text-xl: 1.2rem;
  --text-2xl: 1.4rem;
  --text-3xl: clamp(2rem, 6vw, 3.5rem);
  --text-4xl: clamp(3rem, 8vw, 5.5rem);

  /* Line heights */
  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.7;

  /* Letter spacing */
  --tracking-tight: 0.02em;
  --tracking-normal: 0.05em;
  --tracking-wide: 0.08em;
  --tracking-wider: 0.2em;
  --tracking-widest: 0.4em;

  /* ===========================
     Spacing Scale
     =========================== */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 2.5rem;
  --space-3xl: 3rem;
  --space-4xl: 6rem;

  /* ===========================
     Layout Tokens
     =========================== */
  --container-max-width: 1200px;
  --radius-sm: 10px;
  --radius-full: 999px;
  --z-sticky: 1000;

  /* ===========================
     Animation Tokens
     =========================== */
  --transition-fast: 150ms ease;
  --transition-default: 200ms ease;
  --transition-slow: 300ms ease;

  /* ===========================
     Accessibility
     =========================== */
  scroll-behavior: smooth;
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: var(--leading-relaxed);
  letter-spacing: var(--tracking-tight);
}

body.nav-open {
  overflow: hidden;
}

/* Hide main content initially while loading screen is visible */
.header,
main,
.footer {
  opacity: 0;
}

/* Fade in content after loading */
body.loaded .header,
body.loaded main,
body.loaded .footer {
  animation: content-fade-in 0.6s ease-out 0.4s forwards;
}

@keyframes content-fade-in {
  to {
    opacity: 1;
  }
}

/* ===========================
   Link Styles
   =========================== */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-default);
}

a:hover {
  color: var(--color-primary);
}

/* Visible focus indicator for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

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

.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;
}

/* ===========================
   Loading Screen
   =========================== */
.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: var(--color-background);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  transition:
    opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.loading-screen.fade-out {
  opacity: 0;
  visibility: hidden;
}

.loading-content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading-text {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-primary-strong);
  font-weight: 400;
  animation: fade-in-up 1.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  text-shadow: 0 0 40px rgba(188, 180, 212, 0.3);
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.loading-plane {
  position: absolute;
  width: 32px;
  height: 32px;
  color: var(--color-primary-strong);
  filter: drop-shadow(0 0 8px rgba(188, 180, 212, 0.4));
  offset-path: path('M -300 -60 Q -150 -140, 0 -150 Q 150 -140, 300 -60');
  offset-rotate: auto 90deg;
  offset-anchor: center;
  animation: plane-fly 2.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes plane-fly {
  0% {
    offset-distance: 0%;
    opacity: 0;
    scale: 0.7;
  }

  10% {
    opacity: 1;
  }

  50% {
    scale: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    offset-distance: 100%;
    opacity: 0;
    scale: 0.7;
  }
}

/* ===========================
   Layout Utilities
   =========================== */
.container {
  width: min(var(--container-max-width), 92vw);
  margin-inline: auto;
}

/* ===========================
   Section Components
   =========================== */
.section-intro {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--space-3xl);
}

.section-intro .eyebrow {
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-primary);
  display: inline-block;
  margin-bottom: var(--space-md);
}

.section-intro h2 {
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.section-intro p {
  color: var(--color-text-muted);
  font-size: var(--text-md);
}

/* ===========================
   Header Component
   =========================== */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-divider);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  width: min(var(--container-max-width), 92vw);
  margin: 0 auto;
}

.brand {
  font-size: var(--text-xl);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: var(--transition-default);
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  font-size: var(--text-base);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.nav-list .cta {
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--color-text);
  border-radius: var(--radius-full);
  transition: var(--transition-default);
}

.nav-list .cta:hover,
.nav-list .cta:focus {
  background: var(--color-text);
  color: var(--color-background);
}

/* ===========================
   Hero Component
   =========================== */
.hero {
  position: relative;
  min-height: 85vh;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(0, 0, 0, 0.75), rgba(63, 47, 102, 0.35));
  z-index: 0;
}

.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.85);
  image-rendering: auto;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 3rem 1.5rem;
}

.hero-content .eyebrow {
  letter-spacing: 0.6em;
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 5.5rem);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-shadow:
    0 2px 8px rgba(0, 0, 0, 0.9),
    0 4px 16px rgba(0, 0, 0, 0.7),
    0 8px 32px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(188, 180, 212, 0.15);
}

.hero-subtitle {
  margin-top: 1rem;
  font-size: clamp(1rem, 2.4vw, 1.5rem);
  letter-spacing: 0.4em;
  text-transform: uppercase;
  text-shadow:
    0 2px 6px rgba(0, 0, 0, 0.9),
    0 4px 12px rgba(0, 0, 0, 0.6),
    0 0 30px rgba(188, 180, 212, 0.1);
}

.hero-actions {
  margin-top: var(--space-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

/* ===========================
   Button Component
   =========================== */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-primary-strong);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  font-size: var(--text-sm);
  transition: var(--transition-default);
  color: var(--color-primary-strong);
  cursor: pointer;
}

.button:hover,
.button:focus {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.button-primary {
  background: var(--color-primary-strong);
  color: var(--color-background);
  border-color: var(--color-primary-strong);
}

.button-primary:hover,
.button-primary:focus {
  background: transparent;
  color: var(--color-primary-strong);
}

/* ===========================
   Page Sections
   =========================== */
.section-dark {
  padding: var(--space-4xl) 0;
}

.section-alt {
  padding: var(--space-4xl) 0;
  background: var(--color-surface);
}

.lead-copy {
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
}

/* Services */
.service-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.service-card {
  background: rgba(15, 15, 15, 0.85);
  border: 1px solid var(--color-divider);
  border-radius: 16px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
  position: relative;
  backdrop-filter: blur(10px);
  box-shadow:
    0 4px 6px rgba(0, 0, 0, 0.3),
    0 10px 20px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(188, 180, 212, 0.1);
  transition:
    transform var(--transition-slow),
    border var(--transition-slow),
    box-shadow var(--transition-slow);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-strong));
  opacity: 0.8;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-primary);
  box-shadow:
    0 8px 16px rgba(0, 0, 0, 0.4),
    0 20px 40px rgba(0, 0, 0, 0.3),
    0 0 0 1px var(--color-primary),
    0 0 30px rgba(188, 180, 212, 0.2),
    inset 0 1px 0 rgba(188, 180, 212, 0.15);
}

.service-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  position: relative;
  transition: transform var(--transition-slow);
}

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

.service-card > div {
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  background: linear-gradient(to bottom, rgba(15, 15, 15, 0.95) 0%, rgba(15, 15, 15, 0.85) 100%);
}

.service-card .eyebrow {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 500;
}

.service-card h3 {
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  line-height: 1.3;
  margin-top: 0.25rem;
}

.service-card p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.service-features {
  list-style: none;
  display: grid;
  gap: 0.85rem;
  color: var(--color-text-muted);
  font-size: var(--text-base);
  margin-top: 0.5rem;
}

.service-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  line-height: 1.6;
}

.service-features li::before {
  content: '◆';
  color: var(--color-primary);
  font-size: 0.6rem;
  flex-shrink: 0;
  margin-top: 0.5rem;
  opacity: 0.9;
}

/* Experiences */
.experience-grid {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.experience-card {
  background: rgba(15, 15, 15, 0.85);
  border: 1px solid var(--color-divider);
  overflow: hidden;
  transition:
    transform var(--transition-default),
    border var(--transition-default);
}

.experience-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.experience-card img {
  height: 220px;
  object-fit: cover;
}

.experience-content {
  padding: 1.5rem;
}

.experience-content .badge {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  display: inline-block;
}

.experience-content h3 {
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.experience-content p {
  color: var(--color-text-muted);
}

/* Contact */
.contact-card {
  background: var(--color-surface-strong);
  padding: 3rem;
  border: 1px solid var(--color-divider);
  display: grid;
  gap: 2rem;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  justify-items: center;
}

.whatsapp-intro {
  display: grid;
  gap: 1rem;
  justify-items: center;
}

.whatsapp-icon {
  width: 80px;
  height: 80px;
  color: var(--color-primary-strong);
  opacity: 1;
  filter: drop-shadow(0 0 12px rgba(188, 180, 212, 0.3));
}

.whatsapp-intro h3 {
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 0.5rem;
}

.whatsapp-intro p {
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 400px;
}

.button-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  padding: 1rem 2.5rem;
  transition:
    background var(--transition-default),
    border-color var(--transition-default),
    color var(--transition-default),
    transform var(--transition-default),
    box-shadow var(--transition-default);
  box-shadow: 0 4px 12px rgba(188, 180, 212, 0.15);
}

.button-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(188, 180, 212, 0.25);
}

.button-icon {
  width: 20px;
  height: 20px;
}

.footer {
  padding: 2.5rem 0;
  text-align: center;
  border-top: 1px solid var(--color-divider);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* Responsive */
@media (max-width: 900px) {
  .nav-list {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(320px, 80vw);
    height: 100vh;
    background: rgba(0, 0, 0, 0.96);
    flex-direction: column;
    padding: 6rem 2rem;
    gap: 2rem;
    display: none;
    border-left: 1px solid var(--color-divider);
  }

  .nav-list.active {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }
}

@media (max-width: 640px) {
  .hero-actions {
    flex-direction: column;
  }

  .contact-card {
    padding: 2rem;
  }
}