/* ======================================================
   ECHO Conseil — feuille de style
   Design sobre : ivoire / anthracite / bronze
   ====================================================== */

:root {
  --bg: #f7f5f0;
  --bg-alt: #efebe3;
  --bg-dark: #201d19;
  --text: #262319;
  --text-muted: #5c574c;
  --text-on-dark: #f2ede2;
  --text-on-dark-muted: #c9c1b1;
  --accent: #8a6a34;
  --accent-dark: #6b5227;
  --border: #ddd6c7;
  --border-dark: #3a3630;
  --white: #ffffff;

  --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --max-width: 1120px;
  --radius: 3px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  z-index: 1000;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.6em;
  color: inherit;
}

h1 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.4em; }

.kicker {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.6em;
}
.kicker-light { color: #d3b877; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.94);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
}

.brand-logo {
  height: 44px;
  width: auto;
  flex-shrink: 0;
}

.brand-baseline {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-style: italic;
  padding-left: 16px;
  border-left: 1px solid var(--border);
  line-height: 1.3;
  max-width: 110px;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.primary-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  transition: color 0.15s ease;
}

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

.nav-cta {
  border: 1px solid var(--text);
  padding: 8px 16px;
  border-radius: var(--radius);
}
.nav-cta:hover {
  background: var(--bg-dark);
  border-color: var(--bg-dark);
  color: var(--text-on-dark);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  margin: 0 8px;
}

/* ---------- Hero ---------- */

.hero {
  background: var(--bg-dark);
  color: var(--text-on-dark);
  padding: 96px 0 84px;
}

.hero-inner { max-width: 760px; }

.hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: #d3b877;
  margin-bottom: 1.2em;
}

.hero h1 { color: var(--text-on-dark); }

.hero-lead {
  font-size: 1.08rem;
  color: var(--text-on-dark-muted);
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 2em;
}

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

.btn {
  display: inline-block;
  padding: 13px 26px;
  font-size: 0.94rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.btn-ghost {
  background: transparent;
  color: var(--text-on-dark);
  border-color: rgba(242, 237, 226, 0.4);
}
.btn-ghost:hover { border-color: var(--text-on-dark); }

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

.section {
  padding: 84px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-dark {
  background: var(--bg-dark);
  color: var(--text-on-dark);
}

.section-dark h2 { color: var(--text-on-dark); }

/* ---------- Cabinet ---------- */

.cabinet-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  margin-top: 1.6em;
}

.cabinet-text p { color: var(--text-muted); font-size: 1.02rem; }

.values-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.values-list li {
  border-left: 2px solid var(--accent);
  padding-left: 16px;
}

.value-title {
  display: block;
  font-weight: 600;
  margin-bottom: 2px;
}

.value-desc {
  display: block;
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* ---------- Missions ---------- */

.missions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 2em;
}

.mission-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
}

.mission-number {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 0.4em;
}

.mission-card p { color: var(--text-muted); font-size: 0.96rem; }

.mission-deliverable {
  margin-top: 1.2em;
  padding-top: 1em;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--text);
  font-weight: 500;
}

/* ---------- Methode ---------- */

.methode-grid { margin-top: 1.6em; }

.methode-lead {
  max-width: 760px;
  color: var(--text-muted);
  font-size: 1.02rem;
  margin-bottom: 2.4em;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  counter-reset: step;
}

.timeline li {
  position: relative;
  padding-top: 44px;
  border-top: 2px solid var(--border);
}

.timeline li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: -0.72em;
  left: 0;
  background: var(--bg);
  padding-right: 12px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--accent);
}

.timeline-step {
  display: block;
  font-weight: 600;
  font-size: 1.02rem;
  margin-bottom: 0.4em;
}

.timeline p {
  color: var(--text-muted);
  font-size: 0.94rem;
  margin: 0;
}

/* ---------- Confidentialite ---------- */

.confidentialite-inner h2 { max-width: 640px; }

.confidentialite-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 40px;
  margin-top: 1.6em;
}

.confidentialite-grid p {
  color: var(--text-on-dark-muted);
  margin: 0;
  padding-left: 18px;
  border-left: 2px solid var(--accent);
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  margin-top: 1.8em;
  align-items: start;
}

.contact-intro {
  color: var(--text-muted);
  font-size: 1.02rem;
}

.contact-details {
  margin: 1.8em 0 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-details div {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.contact-details dt {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-details dd {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
}

.contact-details a {
  text-decoration: none;
  color: var(--text);
}
.contact-details a:hover { color: var(--accent); }

.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.form-row {
  margin-bottom: 18px;
}

.form-row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-row-split > div { margin-bottom: 0; }

label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 6px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.96rem;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--white);
}

textarea { resize: vertical; min-height: 110px; }

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.btn-submit {
  width: 100%;
  border: none;
}
.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-status {
  margin: 14px 0 0;
  font-size: 0.9rem;
  min-height: 1.2em;
}
.form-status.success { color: #3f6b3f; }
.form-status.error { color: #a3423a; }

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

.site-footer {
  background: var(--bg-dark);
  color: var(--text-on-dark-muted);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.85rem;
}

.footer-baseline { font-style: italic; }

/* ---------- Responsive ---------- */

@media (max-width: 880px) {
  .cabinet-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .missions-grid {
    grid-template-columns: 1fr;
  }

  .timeline {
    grid-template-columns: 1fr;
  }

  .confidentialite-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }

  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 18px;
    display: none;
  }

  .primary-nav.open { display: flex; }

  .primary-nav a {
    padding: 12px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
  }
  .primary-nav a:last-child { border-bottom: none; }

  .nav-cta {
    margin-top: 10px;
    text-align: center;
  }

  .hero { padding: 64px 0 56px; }
  .section { padding: 56px 0; }

  .form-row-split {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

@media (max-width: 480px) {
  .brand-logo { height: 34px; }
  .brand-baseline { display: none; }
}