/* ===================================================================
   OVERLAP DALLAS — Design System: Editorial Urbanism
   Extracted from DESIGN.md + Stitch prototypes
   =================================================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600&family=Montserrat:wght@700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

/* ===================================================================
   1. CSS CUSTOM PROPERTIES — Design Tokens
   =================================================================== */
:root {
  /* Primary */
  --primary: #a83900;
  --primary-container: #ff5a00;
  --on-primary: #ffffff;
  --on-primary-container: #511700;
  --primary-fixed: #ffdbcf;
  --primary-fixed-dim: #ffb59a;
  --on-primary-fixed: #380d00;
  --on-primary-fixed-variant: #802900;

  /* Secondary (Forest) */
  --secondary: #396843;
  --secondary-container: #b8edbd;
  --on-secondary: #ffffff;
  --on-secondary-container: #3d6d47;
  --secondary-fixed: #bbefc0;
  --secondary-fixed-dim: #9fd3a5;
  --on-secondary-fixed: #00210a;
  --on-secondary-fixed-variant: #21502d;

  /* Tertiary (Terracotta) */
  --tertiary: #97481f;
  --tertiary-container: #d7794d;
  --on-tertiary: #ffffff;
  --on-tertiary-container: #4e1a00;
  --tertiary-fixed: #ffdbcc;
  --tertiary-fixed-dim: #ffb595;
  --on-tertiary-fixed: #351000;
  --on-tertiary-fixed-variant: #793109;

  /* Error */
  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error: #ffffff;
  --on-error-container: #93000a;

  /* Surface / Background */
  --surface: #fcf9f8;
  --surface-bright: #fcf9f8;
  --surface-dim: #dcd9d9;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f6f3f2;
  --surface-container: #f0eded;
  --surface-container-high: #eae7e7;
  --surface-container-highest: #e5e2e1;
  --surface-variant: #e5e2e1;
  --surface-tint: #a83900;
  --background: #fcf9f8;
  --on-surface: #1b1c1c;
  --on-surface-variant: #5b4137;
  --on-background: #1b1c1c;

  /* Inverse */
  --inverse-surface: #303030;
  --inverse-on-surface: #f3f0ef;
  --inverse-primary: #ffb59a;

  /* Outline */
  --outline: #907065;
  --outline-variant: #e4beb1;

  /* Typography Scale */
  --font-headline: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-label: 'Inter', sans-serif;
  --font-brand: 'Montserrat', sans-serif;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --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;

  /* Border Radius — "Roundedness Scale" */
  --radius-default: 1rem;
  --radius-lg: 2rem;
  --radius-xl: 3rem;
  --radius-full: 9999px;

  /* Shadows — Ambient Depth */
  --shadow-sm: 0 1px 2px rgba(27,28,28,0.04);
  --shadow-md: 0 4px 12px rgba(27,28,28,0.06);
  --shadow-lg: 0 8px 32px rgba(27,28,28,0.06);
  --shadow-xl: 0 16px 48px rgba(27,28,28,0.08);

  /* Max width */
  --max-w: 80rem; /* 1280px */
}

/* ===================================================================
   2. RESET & BASE
   =================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--background);
  color: var(--on-surface);
  line-height: 1.6;
  overflow-x: hidden;
}

::selection {
  background-color: var(--primary-container);
  color: var(--on-primary);
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

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

input, textarea {
  font-family: inherit;
  border: none;
  outline: none;
}

/* ===================================================================
   3. TYPOGRAPHY
   =================================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-headline);
  font-weight: 800;
  text-transform: lowercase;
  letter-spacing: -0.02em;
  line-height: 0.9;
  color: var(--on-surface);
}

h1 { font-size: clamp(3.5rem, 8vw, 8rem); }
h2 { font-size: clamp(2.5rem, 5vw, 5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 3rem); }
h4 { font-size: clamp(1.125rem, 2vw, 1.5rem); }

.font-brand {
  font-family: var(--font-brand);
  font-weight: 900;
}

.font-headline {
  font-family: var(--font-headline);
}

.text-primary { color: var(--primary); }
.text-primary-container { color: var(--primary-container); }
.text-secondary { color: var(--secondary); }
.text-tertiary { color: var(--tertiary); }
.text-on-surface-variant { color: var(--on-surface-variant); }
.text-on-primary { color: var(--on-primary); }
.text-on-secondary { color: var(--on-secondary); }
.text-on-tertiary { color: var(--on-tertiary); }

/* ===================================================================
   4. LAYOUT UTILITIES
   =================================================================== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.grid { display: grid; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }
.gap-16 { gap: var(--space-16); }
.gap-20 { gap: var(--space-20); }

.text-center { text-align: center; }
.text-right { text-align: right; }
.w-full { width: 100%; }
.relative { position: relative; }
.z-10 { z-index: 10; }

/* ===================================================================
   5. NAVIGATION
   =================================================================== */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background-color: rgba(252, 249, 248, 0.80);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6) var(--space-8);
  max-width: var(--max-w);
  margin: 0 auto;
}

.nav__logo {
  font-size: 1.375rem;
  font-weight: 900;
  font-family: var(--font-brand);
  color: var(--on-surface);
  letter-spacing: -0.04em;
  text-transform: lowercase;
  display: inline-flex;
  align-items: baseline;
  gap: 0.05em;
}

.nav__logo-dot {
  color: var(--primary-container);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav__link {
  font-family: var(--font-headline);
  font-size: 0.875rem;
  text-transform: lowercase;
  letter-spacing: -0.02em;
  color: var(--on-surface);
  opacity: 0.7;
  transition: all 0.3s ease;
}

.nav__link:hover {
  opacity: 1;
  color: var(--primary-container);
}

.nav__link--active {
  color: var(--primary-container);
  font-weight: 700;
  opacity: 1;
  border-bottom: 2px solid var(--primary-container);
  padding-bottom: 0.25rem;
}

.nav__cta {
  background-color: var(--primary-container);
  color: var(--on-primary);
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: lowercase;
  transition: all 0.2s ease;
}

.nav__cta:hover { opacity: 0.85; }
.nav__cta:active { transform: scale(0.95); }

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  background: none;
  padding: var(--space-2);
}

.nav__hamburger .material-symbols-outlined {
  font-size: 1.75rem;
  color: var(--primary-container);
}

/* Mobile nav overlay */
.nav__mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--surface);
  z-index: 100;
  padding: var(--space-8);
  flex-direction: column;
  gap: var(--space-4);
}

.nav__mobile-menu.is-open {
  display: flex;
}

.nav__mobile-close {
  align-self: flex-end;
  background: none;
  padding: var(--space-2);
}

.nav__mobile-close .material-symbols-outlined {
  font-size: 2rem;
  color: var(--on-surface);
}

.nav__mobile-link {
  font-family: var(--font-headline);
  font-size: 2rem;
  font-weight: 800;
  text-transform: lowercase;
  color: var(--on-surface);
  padding: var(--space-4) 0;
  transition: color 0.3s ease;
}

.nav__mobile-link:hover,
.nav__mobile-link--active {
  color: var(--primary-container);
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__cta--desktop { display: none; }
  .nav__hamburger { display: block; }
}

/* ===================================================================
   6. BUTTONS
   =================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  text-transform: lowercase;
  border-radius: var(--radius-full);
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn--primary {
  background-color: var(--primary-container);
  color: var(--on-primary);
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

.btn--primary:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

.btn--primary:active { transform: scale(0.95); }

.btn--primary-lg {
  background-color: var(--primary-container);
  color: var(--on-primary);
  padding: 1.5rem 3rem;
  font-size: 1.25rem;
  box-shadow: var(--shadow-xl);
}

.btn--primary-lg:hover { transform: scale(1.05); }

.btn--ghost {
  border: 2px solid rgba(228, 190, 177, 0.2);
  color: var(--primary);
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
  background: transparent;
}

.btn--ghost:hover {
  background-color: var(--surface-container-low);
}

.btn--outline {
  border: 2px solid var(--primary-container);
  color: var(--primary);
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  background: transparent;
}

.btn--outline:hover {
  background-color: var(--primary-container);
  color: var(--on-primary);
}

.btn--surface {
  background-color: var(--surface);
  color: var(--primary-container);
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

.btn--surface:hover { box-shadow: var(--shadow-xl); }

.btn--text {
  background: none;
  color: var(--primary);
  font-weight: 700;
  text-transform: lowercase;
  font-size: 1.125rem;
  padding: 0;
}

.btn--text .material-symbols-outlined {
  transition: transform 0.3s ease;
}

.btn--text:hover .material-symbols-outlined {
  transform: translateX(0.5rem);
}

/* ===================================================================
   7. CARDS & SURFACES
   =================================================================== */
.card {
  border-radius: var(--radius-default);
  overflow: hidden;
}

.card--surface { background-color: var(--surface); }
.card--surface-low { background-color: var(--surface-container-low); }
.card--surface-container { background-color: var(--surface-container); }
.card--surface-high { background-color: var(--surface-container-high); }
.card--surface-highest { background-color: var(--surface-container-highest); }
.card--surface-lowest { background-color: var(--surface-container-lowest); }
.card--primary { background-color: var(--primary-container); color: var(--on-primary); }
.card--secondary { background-color: var(--secondary); color: var(--on-secondary); }
.card--secondary-container { background-color: var(--secondary-container); }
.card--tertiary-container { background-color: var(--tertiary-container); }

.card--rounded-lg { border-radius: var(--radius-lg); }
.card--rounded-xl { border-radius: var(--radius-xl); }

/* ===================================================================
   8. SECTIONS
   =================================================================== */
.section {
  padding: var(--space-32) 0;
}

.section--low { background-color: var(--surface-container-low); }
.section--surface { background-color: var(--surface); }

.section__header {
  margin-bottom: var(--space-16);
}

.section__subtitle {
  font-family: var(--font-headline);
  font-weight: 700;
  text-transform: lowercase;
  letter-spacing: 0.1em;
  font-size: 0.875rem;
  color: var(--primary-container);
  margin-bottom: var(--space-4);
  display: block;
}

/* ===================================================================
   9. HERO SECTIONS
   =================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
  overflow: hidden;
}

.hero--page {
  min-height: auto;
  padding-top: 8rem;
  padding-bottom: var(--space-16);
}

.hero__tagline {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-family: var(--font-headline);
  font-weight: 700;
  color: var(--on-surface-variant);
  text-transform: lowercase;
  line-height: 1.3;
  max-width: 36rem;
  margin-bottom: var(--space-10);
}

.hero__body {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--on-surface-variant);
  line-height: 1.7;
  max-width: 36rem;
}

/* ===================================================================
   10. GEOMETRIC OVERLAPS — Decorative Elements
   =================================================================== */
.geo-circle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.geo-circle--primary {
  background-color: var(--primary-container);
}

.geo-circle--secondary {
  background-color: var(--secondary);
}

.geo-circle--blur {
  filter: blur(48px);
}

/* Spot Pin — pulsing orange circle */
.spot-pin {
  width: 4rem;
  height: 4rem;
  background-color: var(--primary-container);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-primary);
  box-shadow: var(--shadow-lg);
}

.spot-pin--animate {
  animation: pulse 2s ease-in-out infinite;
}

/* ===================================================================
   11. IMAGE CONTAINERS
   =================================================================== */
.img-container {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.img-container--lg {
  border-radius: var(--radius-lg);
}

.img-container--rotate {
  transform: rotate(2deg);
  box-shadow: var(--shadow-xl);
}

.img-container--rotate:hover {
  transform: rotate(0deg);
  transition: transform 0.7s ease;
}

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

/* ===================================================================
   12. FOOTER
   =================================================================== */
.footer {
  padding: var(--space-20) var(--space-8);
  background-color: var(--surface);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  max-width: var(--max-w);
  margin: 0 auto;
  align-items: center;
  text-align: center;
}

.footer__logo {
  font-size: 1.125rem;
  font-weight: 700;
  font-family: var(--font-headline);
  color: var(--on-surface);
  text-transform: lowercase;
  letter-spacing: -0.03em;
}

.footer__links {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
}

.footer__link {
  font-size: 0.75rem;
  text-transform: lowercase;
  color: var(--on-surface);
  opacity: 0.6;
  transition: color 0.3s ease;
}

.footer__link:hover {
  color: var(--primary-container);
  opacity: 1;
}

.footer__copy {
  font-size: 0.75rem;
  text-transform: lowercase;
  color: var(--on-surface);
  opacity: 0.6;
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ===================================================================
   13. FORM ELEMENTS
   =================================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-family: var(--font-label);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--on-surface-variant);
  opacity: 0.6;
  margin-left: 0.25rem;
}

.form-input,
.form-textarea {
  width: 100%;
  background-color: var(--surface-container-low);
  border: none;
  border-radius: var(--radius-default);
  padding: 1rem 1.5rem;
  font-size: 1rem;
  color: var(--on-surface);
  transition: box-shadow 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
  box-shadow: 0 0 0 2px var(--primary-container);
}

.form-input::placeholder,
.form-textarea::placeholder {
  opacity: 0.3;
}

.form-textarea {
  resize: none;
  min-height: 8rem;
}

/* ===================================================================
   14. MATERIAL SYMBOLS
   =================================================================== */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.icon-fill {
  font-variation-settings: 'FILL' 1;
}

/* ===================================================================
   15. ANIMATIONS
   =================================================================== */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

@keyframes ping {
  75%, 100% { transform: scale(2); opacity: 0; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(2rem); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-ping { animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite; }

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(2rem);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Hover lift */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ===================================================================
   16. RESPONSIVE GRID HELPERS
   =================================================================== */
@media (min-width: 768px) {
  .md-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .md-grid-3 { grid-template-columns: repeat(3, 1fr); }
  .md-grid-4 { grid-template-columns: repeat(4, 1fr); }
  .md-grid-12 { grid-template-columns: repeat(12, 1fr); }
  .md-col-span-4 { grid-column: span 4; }
  .md-col-span-5 { grid-column: span 5; }
  .md-col-span-6 { grid-column: span 6; }
  .md-col-span-7 { grid-column: span 7; }
  .md-col-span-8 { grid-column: span 8; }
  .md-col-span-12 { grid-column: span 12; }
  .md-order-1 { order: 1; }
  .md-order-2 { order: 2; }
  .md-text-right { text-align: right; }
  .md-pr-16 { padding-right: var(--space-16); }
  .md-pl-16 { padding-left: var(--space-16); }
  .md-flex-row { flex-direction: row; }
}

@media (min-width: 1024px) {
  .lg-grid-2 { grid-template-columns: repeat(2, 1fr); }
  .lg-grid-12 { grid-template-columns: repeat(12, 1fr); }
  .lg-col-span-4 { grid-column: span 4; }
  .lg-col-span-5 { grid-column: span 5; }
  .lg-col-span-6 { grid-column: span 6; }
  .lg-col-span-7 { grid-column: span 7; }
  .lg-col-span-8 { grid-column: span 8; }
}

/* ===================================================================
   17. UTILITY CLASSES
   =================================================================== */
.lowercase { text-transform: lowercase; }
.tracking-tight { letter-spacing: -0.02em; }
.tracking-tighter { letter-spacing: -0.05em; }
.leading-tight { line-height: 0.9; }
.leading-relaxed { line-height: 1.7; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }
.mb-20 { margin-bottom: var(--space-20); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.p-8 { padding: var(--space-8); }
.p-10 { padding: var(--space-10); }
.p-12 { padding: var(--space-12); }
.p-16 { padding: var(--space-16); }
.pt-32 { padding-top: var(--space-32); }
.py-32 { padding-top: var(--space-32); padding-bottom: var(--space-32); }
.overflow-hidden { overflow: hidden; }
.rounded-full { border-radius: var(--radius-full); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded { border-radius: var(--radius-default); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.grayscale { filter: grayscale(100%); }
.grayscale:hover { filter: grayscale(0%); transition: filter 0.7s ease; }
.opacity-20 { opacity: 0.2; }
.opacity-40 { opacity: 0.4; }

/* Signature gradient */
.gradient-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
}

/* Glassmorphism */
.glass {
  background-color: rgba(252, 249, 248, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Pill tags */
.pill {
  display: inline-block;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  text-transform: lowercase;
  background-color: var(--surface-container-high);
}

/* Timeline line for journey page */
.journey-line {
  background: linear-gradient(180deg, var(--primary-container) 0%, var(--primary) 100%);
}

/* Avatar stack */
.avatar-stack {
  display: flex;
}

.avatar-stack__item {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 2px solid white;
  overflow: hidden;
  margin-left: -1rem;
}

.avatar-stack__item:first-child {
  margin-left: 0;
}

.avatar-stack__count {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 2px solid white;
  background-color: var(--surface-container-high);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  margin-left: -1rem;
}