/* Maillard-Dev — site présentation
   Direction: cool mist + ink + teal (pas purple, pas cream/terracotta) */

:root {
  --ink: #0b1f2a;
  --ink-soft: #1a3342;
  --mist: #e8f1f4;
  --mist-deep: #d5e6ec;
  --paper: #f7fbfc;
  --teal: #0f766e;
  --teal-bright: #14b8a6;
  --teal-deep: #0d5c56;
  --amber: #c45c26;
  --line: rgba(11, 31, 42, 0.12);
  --line-strong: rgba(11, 31, 42, 0.22);
  --shadow-soft: 0 0 0 1px var(--line);
  --radius: 12px;
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --shell: min(1120px, calc(100% - 2.5rem));
  --header-h: 4rem;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--teal-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--teal);
}

strong {
  font-weight: 700;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  top: 1rem;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 0.85rem;
  height: 0.85rem;
  background: var(--teal);
  border-radius: 2px;
  transform: rotate(12deg);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.nav {
  display: none;
  align-items: center;
  gap: 1.25rem;
}

.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 600;
}

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

.nav-cta {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink) !important;
}

.nav-cta:hover {
  border-color: var(--teal);
  background: color-mix(in srgb, var(--teal) 8%, transparent);
}

.nav-toggle {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  color: var(--ink);
  cursor: pointer;
}

.nav-mobile {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem 1.25rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.nav-mobile[hidden] {
  display: none;
}

.nav-mobile a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  padding: 0.65rem 0.25rem;
}

@media (min-width: 900px) {
  .nav {
    display: flex;
  }
  .nav-toggle {
    display: none;
  }
  .nav-mobile {
    display: none !important;
  }
}

/* Hero */
.hero {
  position: relative;
  min-height: min(92vh, 820px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 3.5rem 0 4rem;
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, rgba(20, 184, 166, 0.18), transparent 55%),
    radial-gradient(ellipse 70% 50% at 90% 10%, rgba(13, 92, 86, 0.12), transparent 50%),
    linear-gradient(165deg, var(--mist) 0%, var(--paper) 45%, #eef6f8 100%);
  z-index: 0;
}

.hero-atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.35), transparent 75%);
  opacity: 0.5;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3rem;
  }
}

.brand-hero {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0 0 1rem;
  color: var(--ink);
}

.brand-hero-sm {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0 0 1.1rem;
  color: var(--ink-soft);
  max-width: 18ch;
}

.hero-lead {
  margin: 0 0 1.75rem;
  max-width: 38rem;
  color: var(--ink-soft);
  font-size: 1.125rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.98rem;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover {
  background: var(--teal-deep);
  color: var(--paper);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--teal);
  color: var(--teal-deep);
}

.hero-visual {
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--paper) 70%, white);
}

.hero-schema {
  width: 100%;
  height: auto;
}

.node {
  fill: #f4fafb;
  stroke: var(--ink);
  stroke-width: 1.5;
}

.node.accent {
  fill: color-mix(in srgb, var(--teal-bright) 18%, white);
}

.node.warn {
  fill: color-mix(in srgb, var(--amber) 14%, white);
}

.node-label {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  fill: var(--ink);
}

.node-sub {
  font-family: var(--font-body);
  font-size: 12px;
  fill: var(--ink-soft);
}

.flow {
  stroke: var(--teal);
  stroke-width: 2;
  fill: none;
}

.flow-arrow {
  fill: var(--teal);
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-alt {
  background:
    linear-gradient(180deg, var(--mist) 0%, var(--mist-deep) 100%);
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 0.65rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 0.85rem;
}

.section-lead {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.explain-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 800px) {
  .explain-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.explain-block h3,
.pillars h3,
.two-col h3,
.compare h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  margin: 0 0 0.6rem;
}

.explain-block p,
.pillars p,
.two-col p {
  margin: 0;
  color: var(--ink-soft);
}

.callout {
  margin-top: 2.5rem;
  padding: 1.35rem 1.5rem;
  border-left: 3px solid var(--teal);
  background: color-mix(in srgb, var(--teal) 8%, var(--paper));
}

.callout p {
  margin: 0;
}

/* En clair — dual audience */
.en-clair {
  margin-top: 2.5rem;
  padding: 1.35rem 1.4rem 1.5rem;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--paper) 55%, white);
  border-left: 3px solid var(--ink);
}

.en-clair-hero {
  margin-top: 1.75rem;
  max-width: 38rem;
  background: color-mix(in srgb, var(--paper) 80%, white);
}

.en-clair-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  color: var(--ink);
}

.en-clair-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .en-clair-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}

.en-clair h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  margin: 0 0 0.45rem;
  color: var(--teal-deep);
}

.en-clair p {
  margin: 0;
  font-size: 0.98rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.section-alt .en-clair {
  background: var(--paper);
}

/* Schemas */
.schema-panel {
  margin: 0 0 2.5rem;
  padding: 1.25rem 1rem 1rem;
  border: 1px solid var(--line-strong);
  background: var(--paper);
}

.schema-caption {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
  padding-inline: 0.5rem;
}

.schema-svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

.schema-note {
  margin: 0.85rem 0.5rem 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.s-box {
  fill: #f4fafb;
  stroke: var(--ink);
  stroke-width: 1.4;
}

.s-box.accent {
  fill: color-mix(in srgb, var(--teal-bright) 16%, white);
}

.s-box.teal {
  fill: color-mix(in srgb, var(--teal) 22%, white);
}

.s-box.warn {
  fill: color-mix(in srgb, var(--amber) 16%, white);
}

.s-box.muted {
  fill: var(--mist);
}

.s-title {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  fill: var(--ink);
}

.s-sub {
  font-family: var(--font-body);
  font-size: 12px;
  fill: var(--ink-soft);
}

.s-line {
  stroke: var(--teal);
  stroke-width: 2;
  fill: none;
}

.s-arrow {
  fill: var(--teal);
}

.boundary {
  fill: color-mix(in srgb, var(--teal) 6%, white);
  stroke: var(--teal);
  stroke-width: 2;
  stroke-dasharray: 6 4;
}

.boundary.out {
  fill: color-mix(in srgb, var(--amber) 8%, white);
  stroke: var(--amber);
}

.boundary-label {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  fill: var(--teal-deep);
}

.boundary-label.out {
  fill: var(--amber);
}

.layer {
  stroke: var(--ink);
  stroke-width: 1.2;
}

.layer.l1 {
  fill: color-mix(in srgb, var(--mist-deep) 80%, white);
}
.layer.l2 {
  fill: color-mix(in srgb, var(--teal-bright) 12%, white);
}
.layer.l3 {
  fill: color-mix(in srgb, var(--teal) 18%, white);
}
.layer.l4 {
  fill: color-mix(in srgb, var(--teal) 28%, white);
}
.layer.l5 {
  fill: color-mix(in srgb, var(--amber) 18%, white);
}

/* Steps */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 800px) {
  .steps {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem 2rem;
  }
}

.steps li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.step-n {
  flex: 0 0 auto;
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  background: var(--ink);
  color: var(--paper);
  border-radius: 8px;
}

.steps h3 {
  margin: 0.15rem 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.steps p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.two-col {
  display: grid;
  gap: 2rem;
}

@media (min-width: 800px) {
  .two-col {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.plain-list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--ink-soft);
}

.plain-list li + li {
  margin-top: 0.65rem;
}

/* Compare */
.compare {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 860px) {
  .compare {
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
  }
}

.compare-col {
  padding: 1.5rem 1.35rem;
  border: 1px solid var(--line-strong);
  background: var(--paper);
}

.compare-col.pro {
  border-top: 3px solid var(--teal);
}

.compare-col.con {
  border-top: 3px solid var(--amber);
}

.compare-col ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
}

.compare-col li + li {
  margin-top: 0.85rem;
}

.pillars {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 800px) {
  .pillars {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

/* Contact styles removed — no contact section */

.fineprint {
  font-size: 0.85rem;
  color: color-mix(in srgb, var(--ink-soft) 75%, transparent);
  margin: 0.5rem 0 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 2.25rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: baseline;
}

.footer-inner p {
  margin: 0;
}

/* Reveal motion */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

.hero-copy[data-reveal] {
  transition-delay: 0.05s;
}

.hero-visual[data-reveal] {
  transition-delay: 0.18s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn:hover {
    transform: none;
  }
}