/* ============================================================
   CyberCloud AI Consulting — Design System
   Theme: Corporate Blue · Charte validée Phase 1
   ============================================================ */

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

:root {
  --navy:       #1e3a5f;
  --navy-dark:  #152b47;
  --navy-light: #2a4f7c;
  --amber:      #f59e0b;
  --amber-dark: #d97706;
  --green:      #059669;
  --red:        #dc2626;
  --gray-50:    #f8fafc;
  --gray-100:   #f1f5f9;
  --gray-200:   #e2e8f0;
  --gray-300:   #cbd5e1;
  --gray-400:   #94a3b8;
  --gray-600:   #475569;
  --gray-800:   #1e293b;
  --white:      #ffffff;
  --max-w:      1100px;
  --radius:     12px;
  --radius-lg:  18px;
  --shadow:     0 2px 12px rgba(30,58,95,.08);
  --shadow-lg:  0 8px 32px rgba(30,58,95,.14);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

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

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 800; letter-spacing: -0.02em; color: var(--navy); }
p { color: var(--gray-600); }
a { color: var(--navy); text-decoration: none; }

.section-label {
  font-size: .7rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--gray-400); margin-bottom: .625rem;
  display: block;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800; color: var(--navy); margin-bottom: 1rem;
}
.section-intro {
  font-size: 1rem; color: var(--gray-600);
  max-width: 620px; line-height: 1.75; margin-bottom: 2.5rem;
}

/* ===== LAYOUT ===== */
.wrapper {
  max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem;
}
section { padding: 4.5rem 0; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .9375rem; font-weight: 600; border-radius: 9px;
  padding: .75rem 1.625rem; cursor: pointer; border: 2px solid transparent;
  transition: background .18s, color .18s, transform .15s, box-shadow .15s;
  text-decoration: none; white-space: nowrap; font-family: inherit;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--amber); color: var(--navy-dark); border-color: var(--amber);
}
.btn-primary:hover { background: var(--amber-dark); border-color: var(--amber-dark); box-shadow: 0 4px 16px rgba(245,158,11,.35); }
.btn-secondary {
  background: var(--navy); color: var(--white); border-color: var(--navy);
}
.btn-secondary:hover { background: var(--navy-light); border-color: var(--navy-light); box-shadow: var(--shadow-lg); }
.btn-outline {
  background: transparent; color: var(--navy); border-color: var(--navy);
}
.btn-outline:hover { background: var(--navy); color: var(--white); }
.btn-outline-white {
  background: transparent; color: var(--white); border-color: rgba(255,255,255,.6);
}
.btn-outline-white:hover { background: rgba(255,255,255,.1); border-color: var(--white); }
.btn-lg { padding: .9rem 2rem; font-size: 1rem; }
.btn-sm { padding: .5rem 1.125rem; font-size: .875rem; }

/* ===== BADGE / PILL ===== */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .7rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; padding: .3rem .75rem; border-radius: 2rem;
}
.badge-amber { background: rgba(245,158,11,.12); color: var(--amber-dark); border: 1px solid rgba(245,158,11,.3); }
.badge-navy  { background: rgba(30,58,95,.07);   color: var(--navy);        border: 1px solid rgba(30,58,95,.15); }
.badge-green { background: rgba(5,150,105,.1);   color: var(--green);       border: 1px solid rgba(5,150,105,.2); }
.badge-red   { background: rgba(220,38,38,.08);  color: var(--red);         border: 1px solid rgba(220,38,38,.2); }

/* ===== NAV ===== */
.site-nav {
  position: sticky; top: 0; z-index: 200;
  background: var(--white); border-bottom: 1px solid var(--gray-200);
  box-shadow: 0 1px 8px rgba(30,58,95,.06);
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto;
  padding: .875rem 1.5rem;
  display: flex; align-items: center; gap: 1rem;
}
.nav-logo {
  display: flex; align-items: center; flex-shrink: 0; margin-right: auto;
}
.nav-logo svg { height: 36px; width: auto; }
.nav-menu {
  display: flex; align-items: center; gap: .25rem;
}
.nav-menu a {
  font-size: .875rem; font-weight: 500; color: var(--gray-600);
  padding: .5rem .875rem; border-radius: 7px;
  transition: background .15s, color .15s;
}
.nav-menu a:hover, .nav-menu a.active { background: var(--gray-100); color: var(--navy); }
.nav-cta {
  background: var(--amber) !important; color: var(--navy-dark) !important;
  font-weight: 700 !important; margin-left: .375rem;
}
.nav-cta:hover { background: var(--amber-dark) !important; }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  padding: .5rem; border-radius: 7px; color: var(--navy);
  font-size: 1.25rem; line-height: 1;
}
.nav-toggle:hover { background: var(--gray-100); }

/* ===== PAGE HERO (inner pages) ===== */
.page-hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 60%, var(--navy-light) 100%);
  color: var(--white); padding: 4rem 1.5rem 3.5rem; text-align: center;
}
.page-hero .eyebrow {
  display: inline-block;
  background: rgba(245,158,11,.15); border: 1px solid rgba(245,158,11,.35);
  color: var(--amber); font-size: .7rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  padding: .35rem 1rem; border-radius: 2rem; margin-bottom: 1.25rem;
}
.page-hero h1 {
  font-size: clamp(1.75rem, 4vw, 3rem); color: var(--white); margin-bottom: .875rem;
}
.page-hero h1 span { color: var(--amber); }
.page-hero p { font-size: 1rem; color: rgba(255,255,255,.7); max-width: 560px; margin: 0 auto; }

/* ===== HERO HOMEPAGE ===== */
.hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 55%, var(--navy-light) 100%);
  color: var(--white); padding: 6rem 1.5rem 5rem; text-align: center; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 60% 0%, rgba(245,158,11,.08) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 100%, rgba(42,79,124,.3) 0%, transparent 50%);
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-block;
  background: rgba(245,158,11,.15); border: 1px solid rgba(245,158,11,.35);
  color: var(--amber); font-size: .75rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  padding: .4rem 1.125rem; border-radius: 2rem; margin-bottom: 1.5rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.75rem); font-weight: 900;
  color: var(--white); margin-bottom: 1.25rem; line-height: 1.1;
}
.hero h1 span { color: var(--amber); }
.hero-subtitle {
  font-size: clamp(.9375rem, 1.5vw, 1.125rem); color: rgba(255,255,255,.72);
  max-width: 580px; margin: 0 auto 2.5rem; line-height: 1.7;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ===== SERVICES GRID ===== */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.service-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 2rem;
  transition: transform .2s, box-shadow .2s;
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; left: 0; top: 0;
  width: 3px; height: 100%; background: var(--amber);
  transform: scaleY(0); transform-origin: top;
  transition: transform .25s;
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.service-card:hover::before { transform: scaleY(1); }
.service-icon { font-size: 2.25rem; margin-bottom: 1rem; line-height: 1; }
.service-card h3 { font-size: 1.1875rem; color: var(--navy); margin-bottom: .625rem; }
.service-card p { font-size: .875rem; color: var(--gray-600); line-height: 1.7; margin-bottom: 1.125rem; }
.service-tags { display: flex; gap: .4rem; flex-wrap: wrap; }
.service-tag {
  font-size: .65rem; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; padding: .2rem .5rem; border-radius: 4px;
  background: var(--gray-100); color: var(--gray-600);
}

/* ===== STATS ===== */
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
}
.stat-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); padding: 1.75rem 1.5rem; text-align: center;
}
.stat-number { font-size: 2.25rem; font-weight: 900; color: var(--navy); line-height: 1; margin-bottom: .25rem; }
.stat-number span { color: var(--amber); }
.stat-label { font-size: .8375rem; color: var(--gray-600); line-height: 1.4; }

/* ===== DIAG BANNER ===== */
.diag-banner {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  border-radius: var(--radius-lg); padding: 2.75rem 2.5rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 2rem; flex-wrap: wrap; color: var(--white);
}
.diag-banner-text h2 { font-size: 1.5rem; color: var(--white); margin-bottom: .625rem; }
.diag-banner-text p { font-size: .9375rem; color: rgba(255,255,255,.7); max-width: 480px; line-height: 1.7; }
.diag-banner-actions { flex-shrink: 0; }

/* ===== ABOUT SECTION ===== */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.about-text h2 { margin-bottom: 1rem; }
.about-text p { margin-bottom: 1.25rem; }
.about-checks { list-style: none; display: flex; flex-direction: column; gap: .625rem; margin-top: 1.5rem; }
.about-checks li {
  font-size: .9rem; color: var(--gray-600); padding-left: 1.75rem; position: relative; line-height: 1.55;
}
.about-checks li::before {
  content: '✓'; position: absolute; left: 0; color: var(--green);
  font-weight: 800; font-size: .9rem;
}

/* ===== PROCESS STEPS ===== */
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; position: relative;
}
.process-step { text-align: center; padding: 1.5rem 1rem; }
.process-num {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--navy); color: var(--white);
  font-size: 1.125rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem; box-shadow: 0 4px 12px rgba(30,58,95,.25);
}
.process-step h4 { font-size: .9375rem; color: var(--navy); margin-bottom: .5rem; }
.process-step p { font-size: .8125rem; color: var(--gray-600); line-height: 1.6; }

/* ===== PRESTATIONS CARDS (detailed) ===== */
.prestation-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem;
}
.prestation-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 2rem;
  display: flex; flex-direction: column; gap: .875rem;
  box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s;
}
.prestation-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.prestation-card .icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; flex-shrink: 0;
}
.prestation-card h3 { font-size: 1.125rem; color: var(--navy); }
.prestation-card p { font-size: .875rem; color: var(--gray-600); line-height: 1.7; flex: 1; }
.prestation-card .standards {
  font-size: .7rem; font-weight: 700; letter-spacing: .06em; color: var(--gray-400);
  text-transform: uppercase; padding-top: .375rem; border-top: 1px solid var(--gray-100);
}

/* ===== CONTACT FORM ===== */
.contact-layout {
  display: grid; grid-template-columns: 2fr 1fr; gap: 4rem; align-items: start;
}
.contact-form { background: var(--white); border-radius: var(--radius-lg); padding: 2.5rem; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1.25rem; }
.form-group label { font-size: .875rem; font-weight: 600; color: var(--navy); }
.form-group label .req { color: var(--red); margin-left: .2rem; }
.form-control {
  padding: .75rem 1rem; border: 1.5px solid var(--gray-200); border-radius: 8px;
  font-size: .9375rem; font-family: inherit; color: var(--gray-800);
  background: var(--white); transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.form-control:focus { border-color: var(--navy); box-shadow: 0 0 0 3px rgba(30,58,95,.1); }
.form-control::placeholder { color: var(--gray-400); }
textarea.form-control { resize: vertical; min-height: 130px; }
.form-check { display: flex; gap: .75rem; align-items: flex-start; }
.form-check input { width: 18px; height: 18px; margin-top: .1rem; flex-shrink: 0; accent-color: var(--navy); cursor: pointer; }
.form-check label { font-size: .8375rem; color: var(--gray-600); line-height: 1.55; cursor: pointer; }
.form-success {
  display: none; background: rgba(5,150,105,.08); border: 1px solid rgba(5,150,105,.25);
  border-radius: var(--radius); padding: 1.5rem; text-align: center;
  color: var(--green); font-weight: 600;
}

.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-block {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); padding: 1.5rem; display: flex; gap: 1rem; align-items: flex-start;
}
.contact-block .contact-ico { font-size: 1.375rem; flex-shrink: 0; margin-top: .1rem; }
.contact-block h4 { font-size: .875rem; font-weight: 700; color: var(--navy); margin-bottom: .3rem; }
.contact-block p { font-size: .8375rem; color: var(--gray-600); line-height: 1.55; }
.contact-block a { color: var(--navy); font-weight: 500; }
.contact-block a:hover { color: var(--amber-dark); text-decoration: underline; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--navy-dark); color: rgba(255,255,255,.5);
  padding: 4rem 1.5rem 3rem; margin-top: auto;
}
.footer-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem;
}
/* Logo footer: force white on dark bg */
.footer-brand svg text tspan { fill: rgba(255,255,255,.9); }
.footer-brand svg text tspan[fill="#f59e0b"] { fill: #f59e0b; }
.footer-brand svg text tspan[fill="#94a3b8"] { fill: rgba(255,255,255,.4); }
.footer-brand p { font-size: .875rem; color: rgba(255,255,255,.5); margin-top: .875rem; line-height: 1.7; max-width: 300px; }
.footer-col h4 { font-size: .8125rem; font-weight: 700; color: rgba(255,255,255,.8); margin-bottom: 1rem; text-transform: uppercase; letter-spacing: .08em; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.footer-col ul li a { font-size: .8375rem; color: rgba(255,255,255,.45); transition: color .15s; }
.footer-col ul li a:hover { color: var(--amber); }
.footer-bottom {
  max-width: var(--max-w); margin: 2.5rem auto 0;
  padding-top: 2rem; border-top: 1px solid rgba(255,255,255,.08);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: .75rem;
  font-size: .7875rem; color: rgba(255,255,255,.3);
}
.footer-bottom a { color: rgba(255,255,255,.35); margin-left: 1.25rem; }
.footer-bottom a:first-child { margin-left: 0; }
.footer-bottom a:hover { color: rgba(255,255,255,.65); }

/* ===== UTILS ===== */
.text-center { text-align: center; }
.text-amber { color: var(--amber); }
.bg-gray { background: var(--gray-100); }
.bg-navy { background: var(--navy); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .stats-grid     { grid-template-columns: repeat(2, 1fr); }
  .process-steps  { grid-template-columns: repeat(2, 1fr); }
  .footer-inner   { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  section { padding: 3rem 0; }
  .nav-menu {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--navy-dark); flex-direction: column; align-items: stretch;
    justify-content: center; padding: 2rem; gap: .5rem; z-index: 300;
  }
  .nav-menu.is-open { display: flex; }
  .nav-menu a { font-size: 1.125rem; padding: 1rem; color: rgba(255,255,255,.8) !important; background: transparent !important; border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav-menu a:hover { color: var(--amber) !important; }
  .nav-cta { background: var(--amber) !important; color: var(--navy-dark) !important; border-radius: 8px; border-bottom: none !important; margin-top: .5rem; text-align: center; }
  .nav-toggle { display: block; }
  .nav-menu .nav-close { position: absolute; top: 1rem; right: 1rem; }
  .services-grid, .prestation-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .diag-banner { flex-direction: column; text-align: center; }
  .hero { padding: 4rem 1.5rem 3.5rem; }
  .hero h1 { font-size: clamp(1.875rem, 7vw, 2.5rem); }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
}