/* ScalXia — styles (refonte inspirée azuro-ai.com/aios, 19/08/2026) */

:root {
  --bg: #020617;
  --bg-raised: rgba(15, 23, 42, 0.5);
  --border: #1e293b;
  --border-strong: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --accent: #22d3ee;
  --accent-strong: #67e8f9;
  --focus: #22d3ee;

  --font-sans: ui-monospace, "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;

  --max-width: 1080px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
}

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-inline: var(--space-3);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #020617;
  padding: var(--space-1) var(--space-2);
  z-index: 100;
  font-weight: 600;
  border-radius: 4px;
}

.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(2, 6, 23, 0.92);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--text);
}

.menu-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0 var(--space-2);
  cursor: pointer;
}

.menu-toggle:hover {
  border-color: var(--accent);
}

.menu-icon {
  width: 18px;
  height: 2px;
  background: var(--text);
  position: relative;
}

.menu-icon::before,
.menu-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--text);
}

.menu-icon::before { top: -6px; }
.menu-icon::after { top: 6px; }

.site-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  position: absolute;
  top: 4.25rem;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: var(--space-2) var(--space-3) var(--space-3);
  max-height: calc(100vh - 4.25rem);
  overflow-y: auto;
}

.site-nav[data-open="false"] {
  opacity: 0;
  transform: translateY(-8px);
  visibility: hidden;
  pointer-events: none;
  transition: opacity 220ms ease-out, transform 220ms ease-out, visibility 0s linear 220ms;
}

.site-nav[data-open="true"] {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  transition: opacity 220ms ease-out, transform 220ms ease-out, visibility 0s linear 0s;
}

.site-nav a {
  position: relative;
  text-decoration: none;
  color: var(--text-muted);
  padding: var(--space-2) 0;
  font-size: 1rem;
  border-bottom: 1px solid var(--border);
  transition: color 200ms ease-out;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 250ms ease-out;
}

.site-nav a:hover {
  color: var(--text);
}

.site-nav a:hover::after {
  transform: scaleX(1);
}

@media (min-width: 720px) {
  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: flex;
    flex-direction: row;
    gap: var(--space-4);
    background: none;
    border: none;
    padding: 0;
    max-height: none;
    overflow: visible;
  }

  .site-nav a {
    border-bottom: none;
    padding: 0;
  }
}

/* Hero */

.hero {
  padding-block: var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  gap: var(--space-5);
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.hero h1 {
  font-size: clamp(2.5rem, 1.6rem + 4vw, 5rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-3);
  color: #f8fafc;
}

.hero-lead {
  color: var(--text-muted);
  font-size: 1.15rem;
  max-width: 42ch;
  margin-bottom: var(--space-4);
}

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

.hero h1,
.hero-lead,
.hero .btn {
  animation: heroFadeUp 650ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-lead {
  animation-delay: 120ms;
}

.hero .btn {
  animation-delay: 200ms;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 var(--space-3);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid transparent;
  transition: transform 200ms ease-out, box-shadow 200ms ease-out, background-color 200ms ease-out, border-color 200ms ease-out;
}

.btn-primary {
  background: var(--accent);
  color: #020617;
}

.btn-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(34, 211, 238, 0.35);
}

.btn-outline {
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* Terminal (hero) */

.hero-terminal {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  max-width: 34rem;
}

.hero-terminal-bar {
  display: flex;
  gap: 6px;
  padding: var(--space-2) var(--space-2);
  border-bottom: 1px solid var(--border);
}

.hero-terminal-bar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1.5px solid var(--border-strong);
}

.hero-terminal-body {
  padding: var(--space-3);
  font-size: 0.95rem;
}

.terminal-line {
  margin-bottom: var(--space-2);
  color: var(--accent-strong);
}

.terminal-text {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  vertical-align: bottom;
  border-right: 2px solid var(--accent);
  width: 16ch;
  animation:
    terminalTyping 1.6s steps(16, end) 400ms both,
    terminalBlink 800ms step-end infinite;
}

@keyframes terminalTyping {
  from { width: 0; }
  to { width: 16ch; }
}

@keyframes terminalBlink {
  50% { border-color: transparent; }
}

.terminal-output {
  color: var(--text-muted);
  margin-bottom: var(--space-1);
  opacity: 0;
  animation: heroFadeUp 500ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.terminal-output-1 { animation-delay: 2.1s; }
.terminal-output-2 { animation-delay: 2.3s; }
.terminal-output-3 { animation-delay: 2.5s; }

@media (min-width: 860px) {
  .hero-grid {
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
  }
}

/* Sections shared */

section {
  padding-block: var(--space-5);
}

section h2 {
  font-size: clamp(1.75rem, 1.3rem + 2vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
  color: #f8fafc;
}

.section-lead {
  color: var(--text-muted);
  max-width: 48ch;
  font-size: 1.1rem;
  margin-bottom: var(--space-4);
}

section .eyebrow {
  margin-bottom: var(--space-1);
}

/* Apparition au scroll */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1), transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal:nth-child(1) { transition-delay: 0ms; }
.reveal:nth-child(2) { transition-delay: 70ms; }
.reveal:nth-child(3) { transition-delay: 140ms; }
.reveal:nth-child(4) { transition-delay: 210ms; }
.reveal:nth-child(5) { transition-delay: 280ms; }
.reveal:nth-child(6) { transition-delay: 350ms; }
.reveal:nth-child(7) { transition-delay: 420ms; }

/* Chantiers */

.chantiers {
  border-bottom: 1px solid var(--border);
}

.chantier {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  padding-block: var(--space-4);
  border-top: 1px solid var(--border);
}

.chantier:last-child {
  padding-bottom: 0;
}

.chantier-index {
  font-size: clamp(1.75rem, 1.4rem + 1vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.chantier-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-1);
}

.chantier-body p {
  color: var(--text-muted);
  max-width: 56ch;
}

@media (min-width: 720px) {
  .chantier {
    grid-template-columns: 5rem 1fr;
    align-items: baseline;
  }
}

/* Approche */

.approche {
  border-bottom: 1px solid var(--border);
}

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

.etape {
  padding-block: var(--space-3);
  border-top: 1px solid var(--border);
}

.etape-index {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  margin-bottom: var(--space-1);
}

.etape h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.etape p {
  color: var(--text-muted);
  max-width: 42ch;
}

@media (min-width: 860px) {
  .etapes {
    flex-direction: row;
    gap: var(--space-3);
  }

  .etape {
    flex: 1;
  }
}

/* Tarifs */

.plans {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.plan {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: var(--space-4);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color 250ms ease-out, transform 250ms ease-out;
}

.plan h3 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.plan-price {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #f8fafc;
}

.plan-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.plan-list {
  color: var(--text-muted);
  flex-grow: 1;
}

.plan-list li {
  position: relative;
  padding-left: var(--space-3);
  padding-block: 0.3rem;
}

.plan-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.plan .btn {
  align-self: flex-start;
}

.plan-featured {
  border-color: var(--accent);
  background: var(--bg-raised);
}

.plan-badge {
  position: absolute;
  top: -0.75rem;
  left: var(--space-4);
  background: var(--accent);
  color: #020617;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
}

@media (min-width: 860px) {
  .plans {
    flex-direction: row;
    align-items: stretch;
  }

  .plan {
    flex: 1;
  }

  .plan-featured {
    transform: translateY(-0.75rem);
  }
}

/* FAQ */

.faq {
  border-bottom: 1px solid var(--border);
}

.faq-list {
  display: flex;
  flex-direction: column;
}

.faq-list details {
  border-top: 1px solid var(--border);
  padding-block: var(--space-2);
}

.faq-list details:last-child {
  border-bottom: 1px solid var(--border);
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  font-weight: 700;
  font-size: 1.05rem;
  padding-block: var(--space-1);
}

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

.faq-list summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 400;
  flex-shrink: 0;
  transition: transform 200ms ease-out;
}

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

.faq-list details p {
  color: var(--text-muted);
  max-width: 60ch;
  padding-top: var(--space-1);
  padding-bottom: var(--space-1);
}

/* Contact / CTA final */

.cta-final {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 32rem;
}

.cta-final-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--text);
  font-size: clamp(1.15rem, 1rem + 1vw, 1.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  padding-block: var(--space-2);
  border-top: 1px solid var(--border);
  transition: color 200ms ease-out;
}

.cta-final-link:hover {
  color: var(--accent);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: var(--space-4);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
}

.footer-contact a {
  text-decoration: none;
  color: var(--text-muted);
  transition: color 200ms ease-out;
}

.footer-contact a:hover {
  color: var(--accent);
}

@media (min-width: 720px) {
  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .terminal-text {
    border-right-color: var(--accent);
  }
}

/* Icônes line-art */

.icon-line {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}

.cta-final-link .icon-line {
  width: 20px;
  height: 20px;
}

.site-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-icon {
  width: 16px;
  height: 16px;
  stroke: var(--accent);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}