/*
   Projet : BSM Tools
   Auteur : Benoit Saint-Moulin
   Site vitrine - www.bsm3d.com
*/

/* ============================================================
   BSM TOOLS - Design System
   Fonts: Sora (UI) + IBM Plex Mono (code/labels)
   Palette: accent #d4600a / #f08a34, white/light bg, dark text
   ============================================================ */

/* --- Tokens ------------------------------------------------- */
:root {
  --bg:           #ffffff;
  --bg-subtle:    #ffffff;
  --bg-muted:     #f4f1ee;
  --panel:        #ffffff;
  --panel-warm:   #fffaf6;
  --text:         #1a1a1a;
  --text-soft:    #3a3a3a;
  --muted:        #5a5a5a;
  --muted-light:  #8a8a8a;
  --accent:       #d4600a;
  --accent-2:     #f08a34;
  --accent-soft:  rgba(212,96,10,0.12);
  --accent-glow:  rgba(212,96,10,0.22);
  --line:         #e8e2dc;
  --line-warm:    #efc5a6;
  --ok:           #1a7f37;
  --ok-bg:        #f0faf4;
  --radius-sm:    10px;
  --radius-md:    16px;
  --radius-lg:    22px;
  --shadow-sm:    0 2px 8px rgba(38,19,5,0.06);
  --shadow-md:    0 6px 24px rgba(38,19,5,0.09);
  --shadow-lg:    0 14px 48px rgba(38,19,5,0.12);
  --transition:   160ms ease;
}

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

html { scroll-behavior: smooth; }

html, body {
  background: var(--bg-subtle);
  color: var(--text);
  font-family: "Sora", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

img { display: block; max-width: 100%; }
a  { color: var(--accent); }

/* --- Background Decoration --------------------------------- */
.bg-aurora {
  position: fixed;
  inset: -30vmax;
  background:
    radial-gradient(ellipse at 12% 8%,  rgba(212,96,10,0.16), transparent 46%),
    radial-gradient(ellipse at 85% 15%, rgba(212,96,10,0.10), transparent 44%),
    radial-gradient(ellipse at 52% 82%, rgba(240,138,52,0.11), transparent 38%),
    radial-gradient(ellipse at 30% 55%, rgba(240,138,52,0.06), transparent 34%);
  filter: blur(12px);
  z-index: -2;
  animation: aurora-drift 18s ease-in-out infinite alternate;
  pointer-events: none;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.028) 1px, transparent 1px);
  background-size: 42px 42px;
  z-index: -1;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
}

@keyframes aurora-drift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-2%, 2%) scale(1.05); }
}

/* --- Topbar --------------------------------------------------*/
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 24px 14px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.brand-icon {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.brand-title {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.2px;
}

.tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.tab {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  transition: background var(--transition), color var(--transition);
}

.tab:hover { background: var(--accent-soft); color: var(--accent); }
.tab.is-active { background: var(--accent); color: #fff; }

/* --- Hero ----------------------------------------------------*/
main { max-width: 1180px; margin: 0 auto; padding: 0 24px 80px; }

.hero {
  padding: 64px 0 40px;
  max-width: 980px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.1rem);
  font-weight: 800;
  letter-spacing: -0.6px;
  line-height: 1.12;
  margin-bottom: 20px;
}

h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lead {
  font-size: 1.08rem;
  color: var(--muted);
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta, .cta-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px 24px;
  border-radius: 999px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: var(--shadow-md);
}

.cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.cta-ghost {
  background: var(--panel);
  color: var(--text-soft);
  border: 1.5px solid var(--line);
}

.cta-ghost:hover { border-color: var(--accent); color: var(--accent); }

.cta-soon {
  opacity: 0.55;
  cursor: default;
  pointer-events: none;
}

/* --- Sections --------------------------------------------------*/
.panel-wrap { padding: 40px 0; }

.section-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.panel-wrap h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.4px;
  margin-bottom: 14px;
}

.panel-intro {
  color: var(--muted);
  max-width: 980px;
  margin-bottom: 32px;
  font-size: 1.02rem;
}

/* --- Category grid (mirrors the in-editor doc browser) ------
   Fixed column counts (not auto-fit) so rows always fill evenly -
   no lone card left dangling on its own at the end of a row. -*/
.category-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.category-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.category-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--accent-2);
}

.category-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.category-card p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.category-card .tool-count {
  display: inline-block;
  margin-top: 12px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 3px 10px;
  border-radius: 999px;
}

/* --- Asset Store banner --------------------------------------*/
.store-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 34px 38px;
  box-shadow: var(--shadow-lg);
}

.store-banner h2 {
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 6px;
}

.store-banner p {
  color: rgba(255,255,255,0.9);
  font-size: 0.98rem;
  max-width: 480px;
}

.store-banner .cta-store {
  background: #fff;
  color: var(--accent);
  font-weight: 800;
  padding: 13px 26px;
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
}

.store-badge {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: rgba(255,255,255,0.22);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

/* --- Feature list ---------------------------------------------*/
.feature-list {
  list-style: none;
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.feature-list li {
  position: relative;
  padding-left: 22px;
  color: var(--text-soft);
  font-size: 0.94rem;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
}

/* --- Contact form -------------------------------------------------*/
.contact-form {
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-soft);
}

.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form input,
.contact-form textarea {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text);
  background: var(--panel);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  resize: vertical;
  transition: border-color var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form .cta {
  align-self: flex-start;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.contact-form .cta:disabled {
  opacity: 0.6;
  cursor: default;
  transform: none;
}

.contact-status {
  font-size: 0.88rem;
  min-height: 1.2em;
  color: var(--muted);
}

.contact-status.is-success { color: var(--ok); font-weight: 600; }
.contact-status.is-error { color: #a83030; font-weight: 600; }
.contact-status.is-error a { color: inherit; text-decoration: underline; }

@media (max-width: 560px) {
  .contact-row { grid-template-columns: 1fr; }
}

/* --- Footer -----------------------------------------------------*/
footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 30px 24px 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted-light);
  font-size: 0.85rem;
}

/* 44px tap target, same as the main site; the text itself doesn't move */
footer a { color: var(--muted); text-decoration: none; display: inline-flex; align-items: center; min-height: 44px; padding: 0 4px; margin: -13px -4px; }
footer a:hover { color: var(--accent); }

/* --- Reveal-on-load (progressive fade, no JS dependency) ------ */
.reveal { animation: fade-up 560ms ease both; }
.reveal-delay-2 { animation-delay: 90ms; }
.reveal-delay-3 { animation-delay: 160ms; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- Placeholder image / screenshot slot -----------------------
   Used everywhere a real screenshot or GIF will eventually go.
   Swap the <div class="shot"> for a real <img> once captures exist -
   the caption text below each one states exactly what to capture. -*/
.shot {
  position: relative;
  width: 100%;
  min-height: 260px;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-md);
  background:
    repeating-linear-gradient(135deg, rgba(212,96,10,0.05) 0 12px, rgba(212,96,10,0.09) 12px 24px),
    var(--panel-warm);
  border: 1.5px dashed var(--line-warm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--muted);
  text-align: center;
  padding: 24px;
}

.shot svg { width: 34px; height: 34px; stroke: var(--accent); opacity: 0.75; flex-shrink: 0; }

.shot-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-soft);
  max-width: 320px;
  line-height: 1.5;
}

.shot-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 3px 10px;
  border-radius: 999px;
}

.shot.is-wide  { aspect-ratio: 21 / 9; min-height: 200px; }
.shot.is-square{ aspect-ratio: 1 / 1; }
.shot.is-tall  { aspect-ratio: 3 / 4; }

/* --- Compatibility / trust strip -------------------------------*/
.compat-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.compat-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-soft);
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 7px 14px;
  border-radius: 999px;
}

.compat-chip .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  flex-shrink: 0;
}

/* --- Feature row (alternating image / text, for flagship tools) -*/
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
  padding: 36px 0;
}

/* Grid items default to min-width:auto, so a long paragraph or label forces
   the track (and the whole row) wider than its container - reset it so the
   text can actually wrap instead of overflowing at narrow widths. */
.feature-row-media, .feature-row-text { min-width: 0; }

/* Requirements section's two cards - equal columns on desktop, min-width:0 so
   the longer "Optional" card's <code> tags can wrap instead of forcing an
   uneven split that overflows at phone width. */
.requirements-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 900px; }
.requirements-grid > * { min-width: 0; }
.requirements-grid code { overflow-wrap: break-word; }

.feature-row + .feature-row { border-top: 1px solid var(--line); }

.feature-row.is-reverse .feature-row-media { order: 2; }
.feature-row.is-reverse .feature-row-text  { order: 1; }

.feature-row-text .kicker { margin-bottom: 14px; }

.feature-row-text h3 {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 12px;
}

.feature-row-text p {
  color: var(--muted);
  font-size: 0.98rem;
  margin-bottom: 14px;
}

.feature-row-text p:last-child { margin-bottom: 0; }

.feature-row-text .dcc-note {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 600;
  margin-top: 4px;
}

/* --- Gallery grid (screenshot placeholders) ---------------------
   Fixed column count, same reasoning as .category-grid above. -*/
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* --- FAQ (native disclosure, no JS) -----------------------------*/
.faq { max-width: 820px; }

.faq-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 700;
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item p {
  padding: 0 20px 18px;
  color: var(--muted);
  font-size: 0.94rem;
  margin: 0;
}

/* --- Doc bridge cards (links into /docs) ------------------------*/
.doc-bridge {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: var(--panel-warm);
  border: 1px solid var(--line-warm);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 32px;
}

.doc-bridge p { color: var(--muted); max-width: 520px; margin: 0; }
.doc-bridge h2 { margin-bottom: 6px; }

/* Fixed per-category column count (set via a .cols-N modifier on each grid)
   instead of auto-fill, so a category's tools always sit in one full row
   with nothing left dangling alone underneath. Six-item categories use 3
   columns (2 full rows) rather than one cramped row of 6. -*/
.doc-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.doc-nav-grid.cols-1 { grid-template-columns: 1fr; max-width: 280px; }
.doc-nav-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.doc-nav-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.doc-nav-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.doc-nav-grid.cols-6 { grid-template-columns: repeat(3, 1fr); }

.doc-nav-item {
  display: block;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition), transform var(--transition);
}

/* These are a catalogue now, not links - the documentation ships inside the Unity
   package. Only keep the lift-on-hover where the item actually goes somewhere. */
a.doc-nav-item:hover { border-color: var(--accent); transform: translateY(-2px); }
.doc-nav-item strong { display: block; color: var(--accent); font-size: 0.9rem; margin-bottom: 3px; }
.doc-nav-item span { display: block; font-size: 0.8rem; color: var(--muted); }

/* --- Responsive -------------------------------------------------*/
@media (max-width: 980px) {
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid  { grid-template-columns: repeat(2, 1fr); }
  /* 4 and 6 are even, so 2 columns still fills every row - 3 stays a single
     row of 3 here since dropping it to 2 would strand one card alone. -*/
  .doc-nav-grid.cols-4,
  .doc-nav-grid.cols-6 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .topbar { flex-direction: column; align-items: flex-start; }
  .store-banner { flex-direction: column; align-items: flex-start; }
  .store-banner .cta-store { width: 100%; text-align: center; }
  .feature-row { grid-template-columns: 1fr; gap: 22px; }
  .feature-row.is-reverse .feature-row-media,
  .feature-row.is-reverse .feature-row-text { order: unset; }
  .doc-bridge { flex-direction: column; align-items: flex-start; }
  /* Odd count - a 2-column wrap would strand one card, so stack instead. -*/
  .doc-nav-grid.cols-3 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .category-grid { grid-template-columns: 1fr; }
  .gallery-grid  { grid-template-columns: 1fr; }
  /* cols-2/cols-4/cols-6 already read fine at 2 columns down to phone width
     (verified at 320px) - no override needed here; a bare .doc-nav-grid rule
     would lose to the more specific .cols-N rules above anyway. -*/
}