/* ==========================================================================
   ARC CHASSE ARDECHE - ACA | DESIGN SYSTEM & STYLESHEET
   Association Loi 1901 - RNA W071006325 | SIREN 931070254
   Tone: Institutional Exhibition Curator & Typographic Rigor
   ========================================================================== */

:root {
  --color-charcoal: #1C1A17;
  --color-charcoal-light: #2C2824;
  --color-ocher: #C87D55;
  --color-ocher-dark: #A55F3A;
  --color-ocher-subtle: rgba(200, 125, 85, 0.12);
  --color-alabaster: #F9F6F0;
  --color-card-bg: #FFFFFF;
  --color-border: #D9D2C9;
  --color-border-subtle: #EBE5DC;
  --color-text-muted: #5C554E;
  --color-text-main: #1C1A17;
  --font-serif: "Playfair Display", "Times New Roman", Georgia, serif;
  --font-mono: "Courier New", Courier, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --nav-height: 110px;
  --transition: all 0.22s ease-in-out;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-alabaster);
  color: var(--color-text-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-alabaster);
  color: var(--color-text-main);
  line-height: 1.65;
  padding-top: var(--nav-height);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Reading Progress Bar */
#reading-progress-track {
  position: fixed;
  top: 0;
  right: 0;
  width: 4px;
  height: 100vh;
  background: rgba(200, 125, 85, 0.2);
  z-index: 10001;
  pointer-events: none;
}

#reading-progress-bar {
  width: 100%;
  height: 0%;
  background: var(--color-ocher);
  transition: height 0.05s linear;
}

@media (max-width: 992px) {
  #reading-progress-track {
    display: none !important;
  }
}

/* Header & Navigation Architecture */
.header-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  background: #FFFFFF;
  box-shadow: 0 2px 10px rgba(28, 26, 23, 0.06);
}

/* Row 1: Administrative Utility Bar */
.utility-bar {
  background: var(--color-charcoal);
  color: var(--color-alabaster);
  height: 38px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 38px;
  border-bottom: 1px solid #2F2A25;
}

.utility-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.utility-left {
  display: flex;
  gap: 20px;
  letter-spacing: 0.03em;
}

.utility-right a {
  color: var(--color-ocher);
  text-decoration: none;
  font-size: 12px;
  transition: var(--transition);
}

.utility-right a:hover {
  text-decoration: underline;
  color: #F9F6F0;
}

/* Row 2: Main Institutional Navbar */
.main-nav-bar {
  height: 72px;
  background: #FFFFFF;
  border-bottom: 1px solid var(--color-border);
}

.main-nav-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-identity {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--color-charcoal);
}

.brand-sigle {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-charcoal);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-ocher);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* Navigation Links & Dropdowns */
.nav-menu-list {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 24px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-charcoal);
  letter-spacing: 0.05em;
  padding: 10px 4px;
  text-transform: uppercase;
  transition: var(--transition);
}

.nav-link:hover, .nav-item:hover > .nav-link {
  color: var(--color-ocher);
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 24px rgba(28, 26, 23, 0.08);
  list-style: none;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li a {
  display: block;
  padding: 10px 18px;
  color: var(--color-charcoal);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-bottom: 1px solid var(--color-border-subtle);
  transition: var(--transition);
}

.dropdown-menu li:last-child a {
  border-bottom: none;
}

.dropdown-menu li a:hover {
  background: var(--color-alabaster);
  color: var(--color-ocher);
  padding-left: 22px;
}

/* Header Action Button */
.btn-nav-action {
  background: var(--color-charcoal);
  color: #FFFFFF !important;
  padding: 10px 20px;
  border-radius: 2px;
  font-size: 13px;
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  border: 1px solid var(--color-charcoal);
  transition: var(--transition);
}

.btn-nav-action:hover {
  background: var(--color-ocher);
  border-color: var(--color-ocher);
}

/* Mobile Nav Toggle */
.mobile-toggle-btn {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 10px;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  border-radius: 2px;
}

.mobile-toggle-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-charcoal);
  transition: var(--transition);
}

/* General Layout Containers */
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.site-main {
  flex: 1 0 auto;
  padding-bottom: 60px;
}

/* Institutional Typography */
h1, h2, h3, h4, .serif-heading {
  font-family: var(--font-serif);
  color: var(--color-charcoal);
  font-weight: 700;
  line-height: 1.25;
}

h1 {
  font-size: 2.6rem;
  margin-bottom: 20px;
}

h2 {
  font-size: 2rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-ocher);
}

h3 {
  font-size: 1.45rem;
  margin-bottom: 12px;
}

h4 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

p {
  margin-bottom: 1.25rem;
  font-size: 1.02rem;
  color: #2F2A25;
}

.lead-text {
  font-size: 1.18rem;
  line-height: 1.7;
  color: var(--color-charcoal);
  font-weight: 500;
}

.mono-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-ocher);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  display: inline-block;
}

/* Non-Profit Declaration Banner */
.nonprofit-hero-declaration {
  background: #FFFFFF;
  border-left: 4px solid var(--color-ocher);
  padding: 16px 20px;
  margin: 20px 0 28px 0;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-charcoal);
  box-shadow: 0 2px 6px rgba(28, 26, 23, 0.04);
}

.nonprofit-hero-declaration strong {
  color: var(--color-ocher-dark);
}

/* Asymmetrical Grid: 1fr 3fr with Monospace Sidebar */
.asym-grid-layout {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 32px;
  margin-top: 36px;
  align-items: start;
}

.asym-sidebar {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  padding: 24px;
  border-radius: 2px;
}

.asym-sidebar-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-charcoal);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 16px;
  font-weight: 700;
}

.logbook-entries {
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.logbook-entries li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
  color: var(--color-text-muted);
}

.logbook-entries li:last-child {
  border-bottom: none;
}

.logbook-entries strong {
  color: var(--color-charcoal);
  display: block;
  margin-bottom: 2px;
}

.asym-content-panel {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 40px;
  border-radius: 2px;
}

/* Cards & Elements */
.content-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  padding: 30px;
  margin-bottom: 28px;
  border-radius: 2px;
}

.card-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 28px 0;
}

.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 28px 0;
}

.card-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 28px 0;
}

.feature-pillar-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-pillar-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(28, 26, 23, 0.08);
}

.feature-pillar-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--color-border);
}

.feature-pillar-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.feature-pillar-body h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.feature-pillar-body p {
  font-size: 0.95rem;
  color: #4A443D;
  flex: 1;
}

/* Impact Metrics Grid */
.impact-counter-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 32px 0;
}

.impact-counter-card {
  background: var(--color-charcoal);
  color: #FFFFFF;
  padding: 26px 20px;
  text-align: center;
  border-radius: 2px;
  border-bottom: 4px solid var(--color-ocher);
}

.counter-number {
  font-family: var(--font-mono);
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--color-ocher);
  margin-bottom: 6px;
  line-height: 1;
}

.counter-label {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--color-alabaster);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Hero Section Styles */
.page-hero {
  position: relative;
  background: var(--color-charcoal);
  color: #FFFFFF;
  margin-bottom: 36px;
  border-bottom: 4px solid var(--color-ocher);
  overflow: hidden;
}

.page-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(28, 26, 23, 0.72) 0%, rgba(28, 26, 23, 0.9) 100%);
  z-index: 1;
}

.page-hero-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  filter: brightness(0.65);
}

.page-hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 0 50px 0;
  max-width: 960px;
}

.page-hero-content h1 {
  color: #FFFFFF;
  margin-bottom: 16px;
}

.page-hero-content .lead-hero {
  font-size: 1.25rem;
  color: var(--color-alabaster);
  line-height: 1.7;
}

/* Action Buttons (Strict Non-Commercial Labels) */
.btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: 2px;
  cursor: pointer;
  min-height: 44px;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background: var(--color-ocher-dark);
  border-color: var(--color-ocher-dark);
  color: #FFFFFF;
}

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

.btn-outline:hover {
  background: var(--color-charcoal);
  color: #FFFFFF;
}

.btn-outline-light {
  background: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.7);
}

.btn-outline-light:hover {
  background: #FFFFFF;
  color: var(--color-charcoal);
}

.cta-button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
}

/* Institutional Tables */
.table-responsive {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
}

.institutional-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: #FFFFFF;
}

.institutional-table th {
  background: var(--color-charcoal);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-weight: 600;
  text-align: left;
  padding: 14px 16px;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--color-ocher);
}

.institutional-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border-subtle);
  color: #2F2A25;
}

.institutional-table tr:last-child td {
  border-bottom: none;
}

.institutional-table tr:nth-child(even) {
  background: #FAF8F4;
}

.institutional-table .mono-cell {
  font-family: var(--font-mono);
  font-size: 0.86rem;
}

/* Form Styling */
.intake-form {
  margin-top: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-charcoal);
  margin-bottom: 6px;
  font-weight: 600;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  border: 1px solid var(--color-border);
  background: #FFFFFF;
  color: var(--color-charcoal);
  border-radius: 2px;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-ocher);
  box-shadow: 0 0 0 3px rgba(200, 125, 85, 0.15);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.form-help-text {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Footer Architecture */
.institutional-footer {
  background: var(--color-charcoal);
  color: var(--color-alabaster);
  padding-top: 50px;
  border-top: 4px solid var(--color-ocher);
  margin-top: auto;
}

.footer-main-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid #332E29;
}

.footer-col h4 {
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-ocher);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #CFC5B8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-ocher);
  padding-left: 4px;
}

.footer-legal-address {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: #BDB2A5;
}

.footer-mandatory-disclosure {
  padding: 24px 0;
  background: #141311;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.6;
  color: #A39B90;
  text-align: center;
}

.footer-mandatory-disclosure .container {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin-top: 4px;
}

.footer-bottom-links a {
  color: var(--color-ocher);
  text-decoration: none;
}

.footer-bottom-links a:hover {
  text-decoration: underline;
}

/* Image Presentation Styles */
.article-image-box {
  margin: 24px 0;
  border: 1px solid var(--color-border);
  background: #FFFFFF;
  overflow: hidden;
}

.article-image-box img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  :root {
    --nav-height: 90px;
  }

  body {
    padding-top: var(--nav-height);
  }

  .utility-bar {
    display: none;
  }

  .mobile-toggle-btn {
    display: flex;
  }

  .nav-menu-list {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    height: calc(100vh - 72px);
    background: #FFFFFF;
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 0;
    overflow-y: auto;
    display: none;
    border-top: 1px solid var(--color-border);
  }

  .nav-menu-list.is-open {
    display: flex;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--color-border-subtle);
    padding: 8px 0;
  }

  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 12px 0;
    font-size: 15px;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: none;
    box-shadow: none;
    padding-left: 14px;
    background: var(--color-alabaster);
    margin-top: 4px;
  }

  .asym-grid-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .card-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .impact-counter-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-main-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.6rem;
  }

  .card-grid-2,
  .card-grid-3,
  .card-grid-4,
  .impact-counter-grid {
    grid-template-columns: 1fr;
  }

  .asym-content-panel {
    padding: 24px 16px;
  }

  .footer-main-grid {
    grid-template-columns: 1fr;
  }

  .cta-button-group {
    flex-direction: column;
  }

  .btn-action {
    width: 100%;
  }
}