/* =========================================================
   Nexus Atelier — Brand-locked stylesheet
   by Nexus Marine · Light warm mode · Bronze accent
   ========================================================= */

:root {
  --na-bg-primary: #F7F2EA;
  --na-bg-secondary: #FAF7F2;
  --na-bg-dark: #2C2A26;
  --na-bg-black: #1E1E1E;
  --na-bronze: #B87333;
  --na-bronze-deep: #8B6F47;
  --na-bronze-light: #D4A574;
  --na-border: #E5DCC8;
  --na-text-primary: #1E1E1E;
  --na-text-secondary: #6B5D4F;
  --na-text-muted: #9C8E7E;
  --na-text-on-bronze: #FAF7F2;
  --na-font-heading: 'Cormorant Garamond', Georgia, serif;
  --na-font-body: 'Calibri', 'Trebuchet MS', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--na-font-body);
  background: var(--na-bg-primary);
  color: var(--na-text-primary);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ----- Navigation ----- */
.nav {
  background: var(--na-bg-primary);
  padding: 18px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 0.5px solid var(--na-border);
}
.nav-logo img { display: block; height: 48px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-family: var(--na-font-heading);
  font-size: 16px;
  color: var(--na-text-primary);
  text-decoration: none;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--na-bronze); }

/* ----- Buttons ----- */
.btn {
  display: inline-block;
  font-family: var(--na-font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 26px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--na-bronze);
  color: var(--na-text-on-bronze);
}
.btn-primary:hover {
  background: var(--na-bronze-deep);
}
.btn-secondary {
  background: transparent;
  color: var(--na-text-primary);
  border-color: var(--na-text-primary);
}
.btn-secondary:hover {
  background: var(--na-text-primary);
  color: var(--na-bg-primary);
}
.btn-sm { padding: 10px 18px; font-size: 12px; }
.btn-full { width: 100%; padding: 18px; font-size: 14px; }

/* ----- Hero ----- */
.hero {
  background: var(--na-bg-primary);
  padding: 100px 24px 80px;
  text-align: left;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  right: -100px;
  top: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(184,115,51,0.06) 0%, transparent 70%);
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
}
.eyebrow {
  font-family: var(--na-font-body);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--na-bronze);
  margin-bottom: 32px;
  font-weight: 500;
}
.hero-title {
  font-family: var(--na-font-heading);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 500;
  line-height: 1.05;
  color: var(--na-text-primary);
  margin-bottom: 36px;
  letter-spacing: -0.5px;
}
.hero-title em {
  font-style: italic;
  color: var(--na-bronze);
}
.hero-sub {
  font-size: 20px;
  line-height: 1.55;
  color: var(--na-text-secondary);
  max-width: 640px;
  margin-bottom: 44px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ----- Section heads ----- */
.section-head {
  margin-bottom: 60px;
  max-width: 720px;
}
.label {
  font-family: var(--na-font-body);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--na-bronze);
  font-weight: 500;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--na-font-heading);
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 500;
  line-height: 1.1;
  color: var(--na-text-primary);
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}
.section-title em {
  font-style: italic;
  color: var(--na-bronze);
}
.section-sub {
  font-size: 17px;
  color: var(--na-text-secondary);
  line-height: 1.6;
}

/* ----- Services grid ----- */
.services {
  background: var(--na-bg-secondary);
  padding: 100px 0;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.service-card {
  background: var(--na-bg-primary);
  border: 0.5px solid var(--na-border);
  border-left: 2px solid var(--na-bronze);
  padding: 28px 24px 26px;
  transition: transform 0.25s, box-shadow 0.25s;
  min-height: 200px;
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
}
.service-num {
  font-family: var(--na-font-heading);
  font-size: 14px;
  font-style: italic;
  color: var(--na-bronze);
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.service-icon {
  width: 28px;
  height: 28px;
  margin-bottom: 14px;
  opacity: 0.85;
}
.service-card h3 {
  font-family: var(--na-font-heading);
  font-size: 22px;
  font-weight: 600;
  color: var(--na-text-primary);
  margin-bottom: 8px;
  line-height: 1.2;
}
.service-card p {
  font-size: 14px;
  color: var(--na-text-secondary);
  line-height: 1.55;
  margin-top: auto;
}

/* ----- Promises ----- */
.promises {
  background: var(--na-bg-primary);
  padding: 100px 0;
}
.promises-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 80px;
}
.promise {
  border-top: 2px solid var(--na-bronze);
  padding-top: 20px;
}
.promise-num {
  font-family: var(--na-font-heading);
  font-style: italic;
  font-size: 28px;
  color: var(--na-bronze);
  display: block;
  margin-bottom: 12px;
}
.promise h3 {
  font-family: var(--na-font-heading);
  font-size: 26px;
  font-weight: 600;
  color: var(--na-text-primary);
  margin-bottom: 12px;
  line-height: 1.2;
}
.promise p {
  color: var(--na-text-secondary);
  font-size: 16px;
  line-height: 1.6;
}
.filiation-block {
  background: var(--na-bg-dark);
  color: var(--na-bg-primary);
  padding: 60px 50px;
  text-align: center;
}
.filiation-eyebrow {
  font-family: var(--na-font-body);
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--na-bronze);
  margin-bottom: 20px;
  font-weight: 500;
}
.filiation-quote {
  font-family: var(--na-font-heading);
  font-style: italic;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.4;
  color: var(--na-bg-primary);
  max-width: 800px;
  margin: 0 auto 28px;
}
.filiation-quote strong { color: var(--na-bronze); font-weight: 600; font-style: normal; }
.link-arrow {
  font-family: var(--na-font-body);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--na-bronze);
  text-decoration: none;
  font-weight: 600;
}
.link-arrow:hover { color: var(--na-bronze-light); }

/* ----- Zone ----- */
.zone {
  background: var(--na-bg-secondary);
  padding: 100px 0;
}
.zone-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px 28px;
  margin-bottom: 32px;
  border-top: 0.5px solid var(--na-border);
  padding-top: 32px;
}
.zone-list li {
  font-size: 16px;
  color: var(--na-text-primary);
  padding: 6px 0;
  border-bottom: 0.5px solid var(--na-border);
}
.zone-list li strong { color: var(--na-bronze); font-weight: 600; }
.zone-note {
  color: var(--na-text-secondary);
  font-style: italic;
  font-size: 15px;
}

/* ----- Devis form ----- */
.devis {
  background: var(--na-bg-primary);
  padding: 100px 0;
}
.devis-container {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
}
.devis-text {
  padding-top: 20px;
}
.devis-sub {
  font-size: 17px;
  color: var(--na-text-secondary);
  margin-bottom: 28px;
}
.devis-contacts {
  list-style: none;
  border-top: 0.5px solid var(--na-border);
  padding-top: 24px;
}
.devis-contacts li {
  font-size: 15px;
  margin-bottom: 14px;
  color: var(--na-text-primary);
}
.devis-contacts a {
  color: var(--na-bronze);
  text-decoration: none;
  font-weight: 500;
}
.devis-contacts a:hover { text-decoration: underline; }

.devis-form {
  background: var(--na-bg-secondary);
  border: 0.5px solid var(--na-border);
  padding: 40px;
}
.field { margin-bottom: 22px; }
.field label, .field-consent label {
  display: block;
  font-family: var(--na-font-body);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--na-text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 0.5px solid var(--na-border);
  background: var(--na-bg-primary);
  color: var(--na-text-primary);
  font-family: var(--na-font-body);
  font-size: 15px;
  transition: border-color 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--na-bronze);
  border-width: 1px;
}
.field textarea { resize: vertical; min-height: 100px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field-row .field { margin-bottom: 22px; }
.field-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 24px 0 28px;
  font-size: 13px;
  color: var(--na-text-secondary);
}
.field-consent input { margin-top: 3px; }
.field-consent label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  text-transform: none;
  letter-spacing: normal;
  font-size: 13px;
  font-weight: 400;
  margin: 0;
}
.field-consent label span { line-height: 1.5; }

.form-meta {
  font-size: 12px;
  color: var(--na-text-muted);
  text-align: center;
  margin-top: 18px;
  letter-spacing: 0.5px;
}

/* ----- Footer ----- */
.footer {
  background: var(--na-bg-dark);
  color: var(--na-bg-primary);
  padding: 80px 0 30px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 50px;
  margin-bottom: 50px;
}
.footer-brand img { height: 64px; width: auto; margin-bottom: 16px; }
.footer-tagline {
  font-family: var(--na-font-heading);
  font-style: italic;
  font-size: 18px;
  color: var(--na-bronze);
}
.footer-label {
  font-family: var(--na-font-body);
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--na-bronze);
  margin-bottom: 14px;
  font-weight: 600;
}
.footer-col p, .footer-col address {
  font-size: 14px;
  line-height: 1.7;
  color: var(--na-bg-primary);
  font-style: normal;
}
.footer-col a {
  color: var(--na-bg-primary);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--na-bronze); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 0.5px solid rgba(247, 242, 234, 0.15);
  font-size: 12px;
  color: var(--na-text-muted);
}
.footer-bottom a { color: var(--na-text-muted); text-decoration: none; }
.footer-bottom a:hover { color: var(--na-bronze); }

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

@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 960px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .promises-grid { grid-template-columns: 1fr; gap: 30px; margin-bottom: 60px; }
  .zone-list { grid-template-columns: repeat(2, 1fr); }
  .devis-container { grid-template-columns: 1fr; gap: 50px; }
  .footer-inner { grid-template-columns: repeat(2, 1fr); gap: 40px; }
}

@media (max-width: 640px) {
  .nav { padding: 14px 18px; }
  .nav-logo img { height: 36px; }
  .nav-links { gap: 18px; }
  .nav-links a:not(.btn) { display: none; }
  .hero { padding: 60px 20px 50px; }
  .container { padding: 0 18px; }
  .services-grid { grid-template-columns: 1fr; }
  .zone-list { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .devis-form { padding: 26px 20px; }
  .filiation-block { padding: 40px 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  .services, .promises, .zone, .devis { padding: 60px 0; }
  .section-head { margin-bottom: 40px; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; text-align: center; }
}

/* ----- Ecosystem section (Maison Nexus) ----- */
.ecosystem {
  background: var(--na-bg-primary);
  padding: 100px 0;
  border-top: 0.5px solid var(--na-border);
}
.ecosystem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.eco-card {
  display: flex;
  flex-direction: column;
  padding: 50px 40px;
  text-decoration: none;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 0.5px solid;
  position: relative;
  overflow: hidden;
}
.eco-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}
.eco-marine {
  background: #0A0A0A;
  color: #ECE7DE;
  border-color: rgba(192, 57, 43, 0.3);
}
.eco-atelier {
  background: var(--na-bg-secondary);
  color: var(--na-text-primary);
  border-color: rgba(184, 115, 51, 0.3);
}
.eco-logo { margin-bottom: 28px; }
.eco-logo svg { width: 100%; max-width: 340px; height: auto; display: block; }
.eco-tag {
  font-size: 12px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
  font-weight: 500;
}
.eco-marine .eco-tag { color: #C0392B; }
.eco-atelier .eco-tag { color: var(--na-bronze); }
.eco-desc {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 28px;
  flex-grow: 1;
}
.eco-marine .eco-desc { color: #8A8078; }
.eco-atelier .eco-desc { color: var(--na-text-secondary); }
.eco-cta {
  font-family: var(--na-font-body);
  font-size: 13px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  font-weight: 600;
  align-self: flex-start;
  padding-bottom: 4px;
  border-bottom: 1px solid;
}
.eco-marine .eco-cta { color: #C0392B; border-color: #C0392B; }
.eco-atelier .eco-cta { color: var(--na-bronze); border-color: var(--na-bronze); }

@media (max-width: 900px) {
  .ecosystem-grid { grid-template-columns: 1fr; gap: 20px; }
  .ecosystem { padding: 60px 0; }
  .eco-card { padding: 40px 28px; }
}