/* ============================================
   Volvo — Devis premium / éditorial
   ============================================ */

:root {
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-bg: #f5f5f5;
  --color-gray-border: #e0e0e0;
  --color-gray-text: #5c5c5c;
  --color-accent: #16428c;
  --color-error: #b3261e;

  --font-base: "Inter", "Helvetica Neue", Helvetica, Arial, system-ui, -apple-system, sans-serif;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 96px;
  --space-3xl: 140px;

  --max-width: 1180px;
  --radius: 2px;
  --transition: 200ms ease;
  --transition-slow: 900ms ease;
  --header-height: 64px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-weight: 500;
  line-height: 1.18;
  margin: 0 0 var(--space-sm);
  letter-spacing: -0.015em;
}

h1 { font-size: clamp(34px, 6vw, 58px); }
h2 { font-size: clamp(26px, 4vw, 38px); }
h3 { font-size: 19px; }

p {
  margin: 0 0 var(--space-sm);
  color: var(--color-black);
}

a {
  color: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-black);
  color: var(--color-white);
  padding: 10px 16px;
  z-index: 1000;
}
.skip-link:focus {
  left: var(--space-sm);
  top: var(--space-sm);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  font-family: var(--font-base);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid var(--color-black);
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  min-height: 48px;
}

.btn-primary {
  background: var(--color-black);
  color: var(--color-white);
}
.btn-primary:hover {
  background: #262626;
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-black);
  border-color: var(--color-black);
}
.btn-secondary:hover {
  background: var(--color-gray-bg);
}

.btn-small {
  padding: 10px 18px;
  font-size: 13px;
  min-height: 40px;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.link-btn {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-base);
  font-size: 13px;
  font-weight: 500;
  text-decoration: underline;
  cursor: pointer;
  color: var(--color-black);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-border);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

a.logo {
  text-decoration: none;
  cursor: pointer;
  transition: opacity var(--transition);
}

a.logo:hover,
a.logo:focus-visible {
  opacity: 0.6;
}

@media (max-width: 767px) {
  #header-cta {
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }

  #header-cta.header-cta-visible {
    opacity: 1;
    pointer-events: auto;
  }
}

/* ---------- Media placeholders ---------- */

.media-frame {
  position: relative;
  display: block;
  background: var(--color-gray-bg);
  overflow: hidden;
}

.media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame img[src$="ex30-hero.jpg"] {
  object-position: center 82%;
}

.media-frame img[src$="ex60-hero.jpg"] {
  object-position: center 68%;
}

.media-frame img[src$="ex90-hero.jpg"] {
  object-position: center 62%;
}

.media-frame::before {
  content: attr(data-label);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #9a9a9a;
  opacity: 0;
  pointer-events: none;
}

.media-frame.broken::before {
  opacity: 1;
}

/* ---------- Hero (editorial, cinematic) ---------- */

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--color-black);
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.hero-slide.is-active {
  opacity: 1;
}

.hero-slide-media,
.hero-slide-media img {
  width: 100%;
  height: 100%;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.55) 35%, rgba(0,0,0,0.15) 60%, rgba(0,0,0,0.02) 75%),
    linear-gradient(180deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.28) 40%, rgba(0,0,0,0.62) 70%, rgba(0,0,0,0.88) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  color: var(--color-white);
  max-width: 640px;
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  background: radial-gradient(120% 100% at 0% 100%, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.32) 45%, rgba(0,0,0,0) 100%);
}

.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
  margin-bottom: var(--space-md);
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  color: rgba(255,255,255,0.92);
  font-size: 17px;
  max-width: 520px;
}

.hero-content .btn-primary {
  margin-top: var(--space-sm);
  background: var(--color-white);
  color: var(--color-black);
  border-color: var(--color-white);
  white-space: nowrap;
}
.hero-content .btn-primary:hover {
  background: rgba(255,255,255,0.85);
}

.hero-picker {
  position: relative;
  z-index: 2;
  display: flex;
  gap: var(--space-md);
  padding: 0 var(--space-md) max(1.5rem, env(safe-area-inset-bottom));
  margin-left: auto;
}

.hero-picker-item {
  background: none;
  border: none;
  padding: 8px 0;
  cursor: pointer;
  font-family: var(--font-base);
  color: rgba(255,255,255,0.55);
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.hero-picker-name {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-picker-item.is-active,
.hero-picker-item:hover {
  color: var(--color-white);
  border-bottom-color: rgba(255,255,255,0.6);
}

/* ---------- Credibility bar ---------- */

.credibility-bar {
  border-bottom: 1px solid var(--color-gray-border);
}

.credibility-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-md);
  text-align: center;
}

.credibility-inner span {
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--color-gray-text);
}

.credibility-sep {
  color: var(--color-gray-border);
}

/* ---------- Sections ---------- */

.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.configurator {
  background: var(--color-white);
}

.why-volvo {
  background: var(--color-white);
}

.advisor {
  background: var(--color-gray-bg);
}

.devis-form-section {
  background: var(--color-white);
}

.section-intro {
  color: var(--color-gray-text);
  max-width: 560px;
}

.why-volvo h2,
.configurator h2 {
  max-width: 720px;
}

/* ---------- Editorial grid (Pourquoi Volvo) ---------- */

.editorial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.editorial-item {
  max-width: 420px;
}

.editorial-mark {
  display: inline-flex;
  color: var(--color-black);
  margin-bottom: var(--space-sm);
}

.editorial-item h3 {
  margin-bottom: var(--space-xs);
}

.editorial-item p {
  color: var(--color-gray-text);
  font-size: 15px;
}

/* ---------- Model cards (configurator) ---------- */

.model-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.model-card {
  display: flex;
  flex-direction: column;
  text-align: left;
  background: var(--color-white);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius);
  padding: 0;
  cursor: pointer;
  font-family: var(--font-base);
  overflow: hidden;
  transition: border-color var(--transition);
}

.model-card:hover {
  border-color: var(--color-black);
}

.model-card[aria-pressed="true"] {
  border-color: var(--color-black);
  border-width: 2px;
}

.model-card-media {
  aspect-ratio: 4 / 3;
  width: 100%;
}

.model-card-media img {
  transition: transform var(--transition-slow);
}

.model-card:hover .model-card-media img {
  transform: scale(1.06);
}

.model-card-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-md);
}

.model-name {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.model-desc {
  font-size: 14px;
  color: var(--color-gray-text);
}

/* ---------- Accordion (configurator) ---------- */

.accordion {
  margin-top: var(--space-lg);
  border-top: 1px solid var(--color-gray-border);
}

.accordion-item {
  border-bottom: 1px solid var(--color-gray-border);
}

.accordion-heading {
  margin: 0;
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  background: none;
  border: none;
  padding: var(--space-md) 0;
  font-family: var(--font-base);
  cursor: pointer;
  text-align: left;
}

.accordion-title {
  font-size: 16px;
  font-weight: 600;
}

.accordion-chip {
  font-size: 13px;
  color: var(--color-gray-text);
  border: 1px solid var(--color-gray-border);
  border-radius: 999px;
  padding: 5px 14px;
  white-space: nowrap;
}

.accordion-header[aria-expanded="true"] .accordion-chip {
  border-color: var(--color-black);
  color: var(--color-black);
}

.accordion-panel {
  padding-bottom: var(--space-lg);
}

.accordion-panel[hidden] {
  display: none;
}

/* ---------- Color swatches (subtle material rendering) ---------- */

.color-swatch-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.color-swatch {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--swatch-color);
  background:
    radial-gradient(circle at 32% 28%,
      color-mix(in srgb, var(--swatch-color) 45%, white) 0%,
      var(--swatch-color) 55%,
      color-mix(in srgb, var(--swatch-color) 78%, black) 100%);
  border: 1px solid var(--color-gray-border);
  cursor: pointer;
  padding: 0;
  outline-offset: 4px;
  transition: outline var(--transition), transform var(--transition);
}

.color-swatch:hover {
  transform: scale(1.06);
}

.color-swatch[aria-pressed="true"] {
  outline: 2px solid var(--color-black);
}

.color-swatch-label {
  margin-top: var(--space-sm);
  font-size: 14px;
  color: var(--color-gray-text);
}

/* ---------- Pill group / pill buttons (shared) ---------- */

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.pill {
  position: relative;
}

.pill input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.pill span,
.pill-btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid var(--color-gray-border);
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--font-base);
  background: var(--color-white);
  color: var(--color-black);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.pill input:checked + span,
.pill-btn[aria-pressed="true"] {
  background: var(--color-black);
  border-color: var(--color-black);
  color: var(--color-white);
}

.pill input:focus-visible + span {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.field .pill-group[data-invalid="true"] {
  outline: 1px solid var(--color-error);
  outline-offset: 4px;
}

/* ---------- Configurator CTA ---------- */

.configurator-cta {
  margin-top: var(--space-lg);
  display: flex;
  justify-content: center;
}

.configurator-cta[hidden] {
  display: none;
}

/* ---------- Sticky config summary (refined) ---------- */

.config-summary-bar {
  position: sticky;
  top: var(--header-height);
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: 1px solid var(--color-gray-border);
  z-index: 90;
}

.config-summary-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 11px var(--space-md);
}

.config-summary-inner p {
  margin: 0;
  font-size: 13px;
  min-width: 0;
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 400;
  letter-spacing: 0.01em;
}

.config-summary-label {
  color: var(--color-gray-text);
  margin-right: 6px;
}

.config-summary-inner strong {
  font-weight: 500;
}

.config-summary-inner .link-btn {
  flex: 0 0 auto;
  font-size: 12px;
}

@media (max-width: 480px) {
  .config-summary-inner {
    padding: 8px var(--space-md);
  }
  .config-summary-inner p {
    font-size: 12px;
  }
}

/* ---------- Advisor / accompagnement personnalisé ---------- */

.advisor-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  align-items: center;
}

.advisor-visual {
  flex: 0 0 auto;
}

.advisor-illustration {
  display: block;
  width: 132px;
  height: 132px;
  border-radius: 50%;
}

.advisor-text {
  max-width: 560px;
  text-align: center;
}

.advisor-text p {
  color: var(--color-gray-text);
  font-size: 15px;
}

@media (min-width: 700px) {
  .advisor-inner {
    flex-direction: row;
    align-items: center;
    text-align: left;
  }
  .advisor-text {
    text-align: left;
  }
}

/* ---------- Form ---------- */

#form-wrapper {
  max-width: 560px;
  margin: 0 auto;
}

.config-recap {
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
}

.config-recap-label {
  font-size: 13px;
  color: var(--color-gray-text);
  margin: 0 0 var(--space-xs);
}

.config-recap-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px var(--space-md);
  margin: 0 0 var(--space-sm);
}

.config-recap-list dt {
  font-size: 14px;
  color: var(--color-gray-text);
}

.config-recap-list dd {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
}

.config-recap-hint {
  margin: var(--space-sm) 0 0;
  font-size: 13px;
  color: var(--color-error);
}

.form-step,
#devis-form-el {
  border: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label,
.field-label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.field-optional {
  font-weight: 400;
  color: var(--color-gray-text);
}

.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field input[type="date"],
.field select,
.field textarea {
  font-family: var(--font-base);
  font-size: 16px;
  padding: 13px 14px;
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius);
  background: var(--color-white);
  color: var(--color-black);
  min-height: 48px;
  transition: border-color var(--transition);
  resize: vertical;
}

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235c5c5c' stroke-width='1.4' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-black);
}

.field input[aria-invalid="true"] {
  border-color: var(--color-error);
}

.field-error {
  font-size: 13px;
  color: var(--color-error);
  min-height: 16px;
}

.step-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--space-sm);
}

/* ---------- Confirmation ---------- */

.confirmation {
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}

.confirmation-icon {
  margin-bottom: var(--space-sm);
}

.confirmation-message {
  color: var(--color-gray-text);
}

.confirmation-summary {
  text-align: left;
  border-top: 1px solid var(--color-gray-border);
  border-bottom: 1px solid var(--color-gray-border);
  padding: var(--space-md) 0;
  margin: var(--space-md) 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px var(--space-md);
}

.confirmation-summary dt {
  font-size: 13px;
  color: var(--color-gray-text);
}

.confirmation-summary dd {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  text-align: right;
}

.confirmation-urgent {
  font-size: 13px;
  color: var(--color-gray-text);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--space-xl) 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.logo-footer {
  color: var(--color-white);
}

.site-footer address {
  font-style: normal;
  font-size: 14px;
  color: #cccccc;
  line-height: 1.6;
}

.site-footer address a {
  color: #ffffff;
  text-decoration: underline;
}

.social-links {
  display: flex;
  gap: var(--space-sm);
}

.social-links a {
  color: var(--color-white);
  display: inline-flex;
  transition: opacity var(--transition);
}

.social-links a:hover {
  opacity: 0.6;
}

.footer-copy {
  font-size: 12px;
  color: #888888;
  margin-top: var(--space-sm);
}

/* ---------- Fade-in on scroll ---------- */

.fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 560ms ease, transform 560ms ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-slide {
    transition: none;
  }
  .model-card-media img {
    transition: none;
  }
  .model-card:hover .model-card-media img {
    transform: none;
  }
  .color-swatch {
    transition: none;
  }
  .color-swatch:hover {
    transform: none;
  }
  #header-cta {
    transition: none;
  }
}

/* ---------- Responsive: tablet / desktop ---------- */

@media (min-width: 640px) {
  .model-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .editorial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .editorial-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
  }
  .editorial-item {
    max-width: none;
  }
}