/* ==========================================================================
   css/components.css — Shared components across all 4 pages
   ==========================================================================
   Task 2: Shared Navigation Bar (.site-header, .site-nav, .skip-link)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Accessibility Skip Link
   Hidden off-screen until a keyboard user presses Tab at the top of the page.
   -------------------------------------------------------------------------- */
.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-4);
  z-index: 1100;
  background-color: var(--color-white);
  color: var(--color-black);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transform: translateY(-200%);
  transition: transform var(--transition-fast);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   2. Floating Header Wrapper (Fixed at top, hides on scroll down)
   AGENTS.md section 5.1:
   - Fixed at top over the hero.
   - Hides when scrolling down, reappears as an overlay when scrolling up.
   - Always visible at the very top; never hidden while mobile menu is open.
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-3) var(--space-4) 0;
  /* Let clicks pass through the outer transparent margin around the bar */
  pointer-events: none;
  transform: translateY(0);
  transition: transform var(--transition-normal);
}

/* Added by js/nav.js when scrolling down (unless mobile menu is open) */
.site-header--hidden {
  transform: translateY(-120%);
}

/* --------------------------------------------------------------------------
   3. Navigation Bar (.site-nav)
   AGENTS.md section 5.1:
   - Color: #545454 at 50% transparency (--color-nav-bg: rgba(84, 84, 84, 0.5))
   - Round logo + 4 links + decorative vertical lines on desktop
   -------------------------------------------------------------------------- */
.site-nav {
  pointer-events: auto;
  max-width: 1120px; /* Provisional: matches the inset floating bar in /reference/ */
  margin: 0 auto;
  min-height: 58px;  /* Provisional: bar height observed in /reference/ */
  padding: var(--space-2) var(--space-6);
  background-color: var(--color-nav-bg);
  backdrop-filter: blur(6px); /* Provisional: keeps white links legible over white cards */
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

/* Round project logo link */
.site-nav__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  text-decoration: none;
}

.site-nav__logo:hover {
  opacity: 0.9;
}

.site-nav__logo-img {
  width: 44px;  /* Provisional: round logo size in /reference/ */
  height: 44px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   4. Mobile Hamburger Button (< 900px)
   Hidden on desktop (>= 900px).
   -------------------------------------------------------------------------- */
.site-nav__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-sm);
  color: var(--color-white);
}

.site-nav__toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Morph the 3 bars into an "X" when aria-expanded="true" */
.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   5. Navigation Links & Mobile Dropdown (< 900px default, mobile-first)
   -------------------------------------------------------------------------- */
.site-nav__menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  /* Darker translucent panel on mobile so white text is always readable */
  background-color: rgba(60, 60, 60, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* Shown when mobile menu is toggled open (or if JS is disabled and focused) */
.site-nav--open .site-nav__menu {
  display: block;
}

.site-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  display: inline-block;
  padding: var(--space-2) 0;
  color: var(--color-white);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.site-nav__link:hover {
  opacity: 1;
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 6px;
}

/* Highlight the current page link (owner-confirmed: white underline + semibold) */
.site-nav__link[aria-current="page"] {
  font-weight: var(--weight-semibold);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

/* --------------------------------------------------------------------------
   6. Desktop Layout (>= 900px)
   Matches /reference/ screenshots:
   [Logo]   |   Accueil   Informations générales   Notre équipe   Documents d'intérêt   |
   -------------------------------------------------------------------------- */
@media (min-width: 900px) {
  .site-header {
    padding: var(--space-3) var(--space-8) 0;
  }

  .site-nav {
    padding: var(--space-2) var(--space-10);
    justify-content: flex-start;
    gap: var(--space-8);
  }

  /* Hide mobile hamburger button on desktop */
  .site-nav__toggle {
    display: none;
  }

  /* Show inline menu container with the two decorative vertical lines (|) */
  .site-nav__menu {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    position: static;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 0;
    border-top: 0;
  }

  /* Decorative vertical lines flanking the links on desktop (owner-confirmed) */
  .site-nav__menu::before,
  .site-nav__menu::after {
    content: "";
    display: block;
    width: 1px;
    height: 22px; /* Provisional: height of vertical separator bars in /reference/ */
    background-color: rgba(255, 255, 255, 0.55);
    flex-shrink: 0;
  }

  .site-nav__list {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: clamp(1.25rem, 2.5vw, 2.25rem); /* Provisional: horizontal spacing between links */
    margin: 0 auto;
  }

  .site-nav__link {
    position: relative;
    padding: var(--space-1) var(--space-1);
    white-space: nowrap;
  }

  /* Desktop-only animated left-to-right underline (content/06_animations.md section 1):
     - 2px line, 4px below the text, 250ms ease-out transition.
     - Inset by --space-1 (4px) so it matches the exact text width. */
  .site-nav__link::after {
    content: "";
    position: absolute;
    left: var(--space-1);
    right: var(--space-1);
    bottom: 0;
    height: 2px;
    background-color: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 250ms ease-out;
    pointer-events: none;
  }

  .site-nav__link:hover,
  .site-nav__link:focus-visible,
  .site-nav__link[aria-current="page"] {
    text-decoration: none;
  }

  .site-nav__link:hover::after,
  .site-nav__link:focus-visible::after,
  .site-nav__link[aria-current="page"]::after {
    transform: scaleX(1);
  }
}

@media (min-width: 900px) and (prefers-reduced-motion: reduce) {
  .site-nav__link::after {
    transition: none;
  }
}

/* ==========================================================================
   Task 3: Reusable Hero Component (.hero, .hero--home, .hero--page)
   AGENTS.md section 5.2:
   - Full-width background image, dark overlay, centered white <h1>; image set per page.
   - Accueil (.hero--home): tall (about 100vh), potato-field photo, title + subtitle.
   - Inner pages (.hero--page): shorter banner (about 60-70vh), title only.
   ========================================================================== */

.hero {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  background-color: #2c352d; /* Fallback dark colour while background image loads */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  /* Top padding keeps centered title clear of the fixed floating navigation bar */
  padding: calc(var(--nav-height) + var(--space-8)) var(--space-6) var(--space-10);
  overflow: hidden;
}

/* Dark semi-transparent overlay for consistent white text contrast */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--color-hero-overlay); /* Provisional: rgba(0, 0, 0, 0.30) */
  z-index: 1;
}

/* Variant 1: Home page hero (80vh tall, owner-confirmed, title + subtitle) */
.hero--home {
  min-height: 80vh;
  min-height: 80svh;
}

/* Variant 2: Inner page hero banner (shorter on mobile, ~62vh on desktop) */
.hero--page {
  min-height: 45vh; /* Provisional: mobile height so illustrations aren't overly cropped */
  min-height: 45svh;
}

@media (min-width: 600px) {
  .hero--page {
    min-height: 55vh;
    min-height: 55svh;
  }
}

@media (min-width: 900px) {
  .hero--page {
    min-height: 62vh; /* Provisional: within the 60-70vh range in AGENTS.md section 5.2 */
    min-height: 62svh;
  }
}

/* Per-page background images (relative paths from /css/components.css) */
.hero--accueil {
  background-image: url('../assets/images/hero/01_accueil.webp');
}

.hero--info {
  background-image: url('../assets/images/hero/02_general_info.webp');
}

.hero--equipe {
  background-image: url('../assets/images/hero/03_team.webp');
}

.hero--documents {
  background-image: url('../assets/images/hero/04_documents.webp');
}

/* Inner content container positioned above the dark ::before overlay */
.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container-narrow); /* Provisional: 960px */
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__title {
  color: var(--color-white);
  font-size: var(--text-hero); /* Provisional: clamp(2.25rem, 1.6rem + 2.8vw, 3.5rem) */
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em; /* Provisional: matches tight display tracking in Framer */
}

/* Wrap "Projet de recherche sur la / pomme de terre" onto 2 balanced lines on Accueil */
.hero--home .hero__title {
  max-width: 18ch; /* Provisional: observed in reference/01_accueil_pleine_page.png */
}

.hero__subtitle {
  margin-top: var(--space-8); /* Provisional: spacing between title and subtitle on Accueil */
  color: var(--color-white);
  font-size: clamp(1.05rem, 0.95rem + 0.5vw, 1.35rem); /* Provisional: ~17px -> 21.6px */
  font-weight: var(--weight-bold);
  line-height: var(--leading-snug);
  max-width: 58ch; /* Provisional: wraps onto 3 balanced lines as in 01_accueil_pleine_page.png */
}

/* ==========================================================================
   Task 4: Shared Footer & Contact Form (.site-footer, .contact-form)
   AGENTS.md sections 5.3 & 12:
   - Flat #E1E1E1 background (--color-footer) on all 4 pages, never a gradient.
   - Left column: round logo + credit line ("Andrés F. Silva-Dimaté 2026").
   - Right column: heading + contact form (Nom, Courriel, Institution, Message)
     + centered dark "Soumettre" button + aria-live status message area.
   ========================================================================== */

.site-footer {
  background-color: var(--color-footer);
  color: var(--color-text-primary);
  padding: var(--space-10) var(--space-6); /* Provisional: vertical/horizontal padding */
}

.site-footer__inner {
  max-width: var(--container-max); /* Provisional: 1200px */
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* Right column on desktop / bottom on mobile: round logo + small credit text */
.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-3);
}

.site-footer__logo {
  width: 80px; /* Provisional: round logo size in footer */
  height: 80px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.site-footer__credit {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.site-footer__ai-notice {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: -4px;
}

.site-footer__ai-link {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--color-text-primary);
  font-weight: var(--weight-semibold);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.site-footer__ai-link:hover,
.site-footer__ai-link:focus-visible {
  color: var(--color-green-dark);
}

/* Left column on desktop / top on mobile: contact form section */
.site-footer__form-wrapper {
  width: 100%;
}

.site-footer__heading {
  font-size: var(--text-base); /* Provisional: matches compact heading in /reference/ */
  font-weight: var(--weight-semibold);
  color: var(--color-black);
  text-align: center;
  margin-bottom: var(--space-6);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Top row of 3 fields (Nom, Courriel, Institution): 1 col mobile, 3 cols >= 600px */
.contact-form__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 600px) {
  .contact-form__row {
    grid-template-columns: repeat(3, 1fr);
  }
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.contact-form__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
}

.contact-form__input,
.contact-form__textarea {
  width: 100%;
  background-color: var(--color-input-bg); /* Provisional: #D5D5D5 */
  color: var(--color-text-primary);
  border: 1px solid transparent;
  border-radius: var(--radius-sm); /* Provisional: 6px */
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.contact-form__input {
  min-height: 38px; /* Provisional: input height in /reference/ */
}

.contact-form__textarea {
  min-height: 88px; /* Provisional: textarea height in /reference/ */
  resize: vertical;
}

/* Error state when client-side validation fails */
.contact-form__input[aria-invalid="true"],
.contact-form__textarea[aria-invalid="true"] {
  border-color: var(--color-error);
  background-color: var(--color-white);
}

.contact-form__error {
  font-size: var(--text-xs);
  color: var(--color-error);
  font-weight: var(--weight-medium);
  min-height: 0;
}

.contact-form__error:empty {
  display: none;
}

/* Submit button row (centered below Message) */
.contact-form__actions {
  display: flex;
  justify-content: center;
  margin-top: var(--space-2);
}

.contact-form__submit {
  min-width: 180px; /* Provisional: button width in /reference/ */
  padding: var(--space-2) var(--space-6);
  background-color: var(--color-button-dark); /* Provisional: #2B2B2B */
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  text-align: center;
  transition: background-color var(--transition-fast), opacity var(--transition-fast);
}

.contact-form__submit:hover:not(:disabled) {
  background-color: var(--color-button-dark-hover);
}

.contact-form__submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* Status banner (aria-live="polite") for inactive / success / error feedback */
.contact-form__status {
  text-align: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-sm);
}

.contact-form__status:empty {
  display: none;
}

.contact-form__status--info,
.contact-form__status--success,
.contact-form__status--error {
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-status-bg);
  border-left: 4px solid var(--color-green-dark);
}

.contact-form__status--error {
  border-left-color: var(--color-error);
  color: var(--color-error);
}

/* Desktop two-column footer layout (>= 900px) matching 01_accueil_pleine_page.png */
@media (min-width: 900px) {
  .site-footer {
    padding: var(--space-12) var(--space-10);
  }

  .site-footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-12);
  }

  .site-footer__brand {
    flex: 0 0 250px; /* Provisional: right brand column width */
  }

  .site-footer__form-wrapper {
    flex: 1;
    max-width: 750px; /* Provisional: left form column max width */
  }
}

/* --------------------------------------------------------------------------
   AI Use Statement Modal (<dialog class="ai-dialog">)
   Centered in the user's window via native top-layer <dialog> + margin: auto.
   Closes on "X" button click, backdrop click outside .ai-dialog__panel, or Esc.
   -------------------------------------------------------------------------- */
.ai-dialog {
  width: min(92vw, 620px);
  max-height: 90vh;
  margin: auto;
  padding: 0;
  border: none;
  border-radius: var(--radius-lg);
  background-color: var(--color-white);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-dialog);
  overflow-x: hidden;
  overflow-y: auto;
}

.ai-dialog::backdrop {
  background-color: var(--color-dialog-backdrop);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.ai-dialog__panel {
  position: relative;
  border-top: 6px solid var(--color-green-accent);
  padding: var(--space-6) var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  text-align: left;
}

@media (min-width: 600px) {
  .ai-dialog__panel {
    padding: var(--space-8) var(--space-8) var(--space-6);
  }
}

.ai-dialog__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-subtle);
}

.ai-dialog__title {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  color: var(--color-black);
  line-height: var(--leading-snug);
  margin: 0;
}

@media (min-width: 600px) {
  .ai-dialog__title {
    font-size: var(--text-lg);
  }
}

.ai-dialog__close {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: none;
  background-color: var(--color-footer);
  color: var(--color-text-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.ai-dialog__close:hover,
.ai-dialog__close:focus-visible {
  background-color: var(--color-button-dark);
  color: var(--color-white);
  transform: scale(1.05);
}

.ai-dialog__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
}

.ai-dialog__body p {
  margin: 0;
  text-align: justify;
}

.ai-dialog__meta {
  margin-top: var(--space-1);
  padding: var(--space-3) var(--space-4);
  background-color: #f4f6f0;
  border-left: 4px solid var(--color-green-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-primary);
}

.ai-dialog__meta p {
  margin: 0;
  text-align: left;
}

.ai-dialog__footer {
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-subtle);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: italic;
}

.ai-dialog__footer p {
  margin: 0;
}

/* ==========================================================================
   Task 7: Reusable Carousel Component (.carousel)
   AGENTS.md section 7:
   - Driven by data-carousel attributes in js/carousel.js.
   - Used by: production carousel, pathogen dialogs, videos, presentations,
     and affiches.
   - Layout variants via modifier classes:
     .carousel--single, .carousel--centered, .carousel--split,
     .carousel--dialog, and .carousel__card-grid (multi-card row).
   ========================================================================== */

.carousel {
  position: relative;
  width: 100%;
  padding-left: var(--space-12);  /* Provisional: space for left arrow button */
  padding-right: var(--space-12); /* Provisional: space for right arrow button */
}

/* Horizontal scroll-snap viewport */
.carousel__viewport {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none; /* Firefox: hide scrollbar */
  -ms-overflow-style: none;
  border-radius: var(--radius-sm);
}

.carousel__viewport::-webkit-scrollbar {
  display: none; /* Chrome/Safari/Edge: hide scrollbar */
}

/* Individual slide takes 100% of the viewport width */
.carousel__slide {
  flex: 0 0 100%;
  width: 100%;
  min-width: 0;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

/* --------------------------------------------------------------------------
   1. Round Previous / Next Arrow Buttons (.carousel__btn)
   -------------------------------------------------------------------------- */
.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 40px;  /* Provisional: round arrow diameter in /reference/ */
  height: 40px;
  border-radius: var(--radius-full);
  border: none;
  background-color: var(--color-carousel-control); /* Provisional: rgba(110, 110, 110, 0.85) */
  color: var(--color-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: opacity var(--transition-fast), background-color var(--transition-fast);
}

.carousel__btn--prev {
  left: 0;
}

.carousel__btn--next {
  right: 0;
}

.carousel__btn:hover:not(:disabled) {
  background-color: rgba(80, 80, 80, 0.95);
}

/* Default disabled state (Documents carousels show a faded arrow at start/end) */
.carousel__btn:disabled {
  opacity: 0.4;
  cursor: default;
}

/* Modifier for Production carousel & Pathogen dialogs where disabled arrow hides completely
   (as observed in 02_a_detail-section-portrait.png and 02_b01_popup-fletrissement.png) */
.carousel--hide-disabled-arrows .carousel__btn:disabled,
.carousel--dialog .carousel__btn:disabled {
  opacity: 0;
  pointer-events: none;
}

.carousel__btn-icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2.25;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --------------------------------------------------------------------------
   2. Pagination Dots Pill (.carousel__dots)
   -------------------------------------------------------------------------- */
.carousel__dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: fit-content;
  margin: var(--space-4) auto 0;
  padding: 0 6px; /* Provisional: pill padding adjusted for 24x24px dot hit area */
  border-radius: var(--radius-pill);
  background-color: var(--color-carousel-control);
}

.carousel__dots:empty {
  display: none;
}

/* Visual dot is 8x8px via background-clip: content-box; interactive tap target is 24x24px */
.carousel__dot {
  width: 24px;
  height: 24px;
  padding: 8px;
  border: none;
  border-radius: var(--radius-full);
  background-color: var(--color-carousel-dot-inactive); /* rgba(255, 255, 255, 0.45) */
  background-clip: content-box;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.carousel__dot:hover {
  background-color: rgba(255, 255, 255, 0.8);
}

.carousel__dot[aria-current="true"] {
  background-color: var(--color-white);
  transform: scale(1.1);
}

/* --------------------------------------------------------------------------
   3. Theme & Layout Modifiers
   -------------------------------------------------------------------------- */

/* Variant A: Pathogen modal (<dialog>) dark controls (#1F2430) */
.carousel--dialog .carousel__btn,
.carousel--dialog .carousel__dots {
  background-color: var(--color-dialog-btn-bg);
}

.carousel--dialog .carousel__btn:hover:not(:disabled) {
  background-color: var(--color-black);
}

/* Variant B: Single-slide with image + caption (Production carousel) */
.carousel--single .carousel__slide {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

/* Variant C: Centered layout (Présentations & Videos) */
.carousel--centered .carousel__slide {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-4);
}

/* Variant D: Side-by-side layout (Affiches: image left, details right on desktop) */
.carousel--split .carousel__slide {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
}

@media (min-width: 900px) {
  .carousel--split .carousel__slide {
    grid-template-columns: minmax(260px, 44%) 1fr; /* Provisional: poster left, citation right */
    gap: var(--space-10);
  }
}

/* Variant E: Multi-card row inside a slide (Pucerons: 3 species / predator cards) */
.carousel__card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 600px) {
  .carousel__card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .carousel__card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}