/* ══════════════════════════════════════════════
   EasyRisk Suite — Feuille de styles commune
   ══════════════════════════════════════════════ */

/* ── Reset & variables ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --c-bg:     #f8f9fc;
  --c-white:  #ffffff;
  --c-text:   #1a1d2e;
  --c-muted:  #6b7280;
  --c-border: #e5e7eb;
  --c-hero:   #0f172a;
  /* modules */
  --c-ebios: #2563eb;
  --c-iec:   #7c3aed;
  --c-ri:    #d97706;
  --c-evrp:  #059669;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
}
html  { scroll-behavior: smooth; }
body  { background: var(--c-bg); color: var(--c-text); line-height: 1.6; }
a     { color: inherit; text-decoration: none; }
img   { max-width: 100%; }

/* ── Layout ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 80px 0; }
.section--alt { background: var(--c-white); }

/* ── Nav ── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; max-width: 1100px; margin: 0 auto; padding: 0 24px;
}
.nav-logo { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }
.nav-logo span { color: var(--c-ebios); }
.nav-links { display: flex; gap: 8px; list-style: none; align-items: center; }
.nav-links a {
  padding: 6px 14px; border-radius: 6px;
  font-size: 0.875rem; font-weight: 500; transition: background 0.15s;
}
.nav-links a:hover { background: var(--c-bg); }
.nav-links a.active { font-weight: 700; }
.nav-links a.active.mod-ebios { color: var(--c-ebios); }
.nav-links a.active.mod-iec   { color: var(--c-iec); }
.nav-links a.active.mod-ri    { color: var(--c-ri); }
.nav-links a.active.mod-evrp  { color: var(--c-evrp); }
.nav-cta {
  background: var(--c-ebios); color: #fff !important;
  padding: 8px 18px; border-radius: 8px;
  font-size: 0.875rem; font-weight: 600; transition: opacity 0.15s;
}
.nav-cta:hover { opacity: 0.88; background: var(--c-ebios) !important; }
.nav-login { color: var(--c-text) !important; font-size: 0.875rem; font-weight: 500; padding: 8px 12px; border-radius: 8px; transition: background 0.15s; }
.nav-login:hover { background: rgba(0,0,0,0.06); }
@media (max-width: 700px) { .nav-links { display: none; } }

/* ── Buttons ── */
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 10px;
  font-size: 0.9375rem; font-weight: 600; cursor: pointer; transition: all 0.15s;
}
.btn-primary {
  background: var(--c-ebios); color: #fff;
  box-shadow: 0 4px 14px rgba(37,99,235,0.35);
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-outline {
  background: transparent; color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
}
.btn-outline:hover { background: rgba(255,255,255,0.08); }
.btn-submit {
  background: var(--c-ebios); color: #fff; border: none; width: 100%;
  padding: 13px; border-radius: 10px; font-size: 1rem; font-weight: 700;
  cursor: pointer; transition: opacity 0.15s; font-family: inherit;
}
.btn-submit:hover { opacity: 0.88; }

/* ── Hero ── */
.hero {
  background: var(--c-hero); color: #fff;
  padding: 100px 0 80px; text-align: center;
}
.hero-badge {
  display: inline-block; border-radius: 99px;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 4px 14px; margin-bottom: 24px; color: #93c5fd;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 20px;
}
.hero h1 span { color: #60a5fa; }
.hero p { font-size: 1.125rem; color: #94a3b8; max-width: 600px; margin: 0 auto 40px; }
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-modules { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 60px; }
.hero-module-badge {
  padding: 8px 18px; border-radius: 8px;
  font-size: 0.8125rem; font-weight: 600; border: 1.5px solid; cursor: pointer;
  transition: opacity 0.15s;
}
.hero-module-badge:hover { opacity: 0.8; }
.hm-ebios { border-color:#3b82f6; color:#93c5fd; background:rgba(59,130,246,0.1); }
.hm-iec   { border-color:#a78bfa; color:#c4b5fd; background:rgba(167,139,250,0.1); }
.hm-ri    { border-color:#fbbf24; color:#fcd34d; background:rgba(251,191,36,0.1); }
.hm-evrp  { border-color:#34d399; color:#6ee7b7; background:rgba(52,211,153,0.1); }

/* ── Module hero (pages secondaires) ── */
.module-hero {
  padding: 72px 0 56px; text-align: center;
}
.module-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 16px;
  color: #fff;
}
.module-hero p { font-size: 1.05rem; color: rgba(255,255,255,0.75); max-width: 580px; margin: 0 auto 32px; }
.module-hero .hero-ctas { justify-content: center; }

.mh-ebios { background: linear-gradient(135deg, #1e3a8a, #2563eb); }
.mh-iec   { background: linear-gradient(135deg, #4c1d95, #7c3aed); }
.mh-ri    { background: linear-gradient(135deg, #78350f, #d97706); }
.mh-evrp  { background: linear-gradient(135deg, #064e3b, #059669); }

/* ── Breadcrumb ── */
.breadcrumb {
  font-size: 0.8125rem; color: rgba(255,255,255,0.6);
  display: flex; gap: 6px; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { opacity: 0.5; }

/* ── Section labels ── */
.section-tag {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 6px; margin-bottom: 14px;
}
.tag-ebios   { background:#dbeafe; color:var(--c-ebios); }
.tag-iec     { background:#ede9fe; color:var(--c-iec); }
.tag-ri      { background:#fef3c7; color:var(--c-ri); }
.tag-evrp    { background:#d1fae5; color:var(--c-evrp); }
.tag-contact { background:#f1f5f9; color:#475569; }

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px;
}
.section-subtitle {
  color: var(--c-muted); font-size: 1.05rem;
  max-width: 560px; margin-bottom: 48px;
}
.section-en {
  font-size: 0.8rem; font-weight: 500;
  color: var(--c-muted); letter-spacing: 0.04em; margin-bottom: 4px;
}
.accent-bar { height: 4px; border-radius: 2px; width: 48px; margin-bottom: 28px; }
.ab-ebios { background: var(--c-ebios); }
.ab-iec   { background: var(--c-iec); }
.ab-ri    { background: var(--c-ri); }
.ab-evrp  { background: var(--c-evrp); }

/* ── Feature grid ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: 14px; padding: 24px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.section--alt .feature-card { background: var(--c-bg); }
.feature-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.08); transform: translateY(-2px); }
.feature-icon {
  width: 42px; height: 42px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; margin-bottom: 14px;
}
.fi-ebios { background:#dbeafe; }
.fi-iec   { background:#ede9fe; }
.fi-ri    { background:#fef3c7; }
.fi-evrp  { background:#d1fae5; }
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.feature-card p  { font-size: 0.875rem; color: var(--c-muted); line-height: 1.5; }

/* ── Two-column ── */
.two-col {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center;
}
@media (max-width: 768px) { .two-col { grid-template-columns: 1fr; } }
.two-col-visual {
  border-radius: 16px; overflow: hidden;
  border: 1px solid var(--c-border);
  background: var(--c-white); padding: 24px;
}

/* ── Mock screen ── */
.mock-screen {
  width: 100%; aspect-ratio: 16/9; border-radius: 10px;
  display: flex; flex-direction: column; overflow: hidden; font-size: 0.7rem;
}
.mock-bar { padding: 8px 14px; display: flex; gap: 6px; align-items: center; }
.mock-dot { width: 10px; height: 10px; border-radius: 50%; }
.mock-body { flex: 1; padding: 14px; display: flex; flex-direction: column; gap: 8px; }
.mock-row  { height: 12px; border-radius: 4px; background: rgba(255,255,255,0.2); }
.mock-table { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.mock-tr  { display: flex; gap: 4px; }
.mock-td  { flex: 1; height: 10px; border-radius: 3px; background: rgba(255,255,255,0.15); }
.mock-td.wide { flex: 2; }
.mock-badge-row { display: flex; gap: 6px; flex-wrap: wrap; }
.mock-badge {
  padding: 3px 8px; border-radius: 4px;
  font-size: 0.6rem; font-weight: 600;
  background: rgba(255,255,255,0.2); color: rgba(255,255,255,0.8);
}
.mock-caption { font-size: 0.8rem; color: var(--c-muted); margin-top: 12px; text-align: center; }

/* ── Pills ── */
.pill-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.pill {
  padding: 5px 12px; border-radius: 99px;
  font-size: 0.8125rem; font-weight: 500; border: 1px solid;
}
.pill-ebios { border-color:#93c5fd; color:var(--c-ebios); background:#eff6ff; }
.pill-iec   { border-color:#c4b5fd; color:var(--c-iec);   background:#f5f3ff; }
.pill-ri    { border-color:#fcd34d; color:var(--c-ri);    background:#fffbeb; }
.pill-evrp  { border-color:#6ee7b7; color:var(--c-evrp);  background:#ecfdf5; }

/* ── Step list ── */
.step-list { display: flex; flex-direction: column; gap: 16px; }
.step-item { display: flex; gap: 14px; align-items: flex-start; }
.step-num {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0; margin-top: 2px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8125rem; font-weight: 700;
}
.sn-ebios { background:#dbeafe; color:var(--c-ebios); }
.sn-iec   { background:#ede9fe; color:var(--c-iec); }
.sn-ri    { background:#fef3c7; color:var(--c-ri); }
.sn-evrp  { background:#d1fae5; color:var(--c-evrp); }
.step-text h4 { font-size: 0.9375rem; font-weight: 700; margin-bottom: 2px; }
.step-text p  { font-size: 0.875rem; color: var(--c-muted); }

/* ── Stats row ── */
.stats-row {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 20px; margin-bottom: 60px;
}
.stat-card {
  background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: 14px; padding: 20px; text-align: center;
}
.stat-card .num { font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; }
.stat-card .lbl { font-size: 0.8125rem; color: var(--c-muted); margin-top: 2px; }

/* ── Module nav cards (index) ── */
.module-cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 20px;
}
.module-card {
  border-radius: 16px; padding: 28px 24px; color: #fff;
  display: flex; flex-direction: column; gap: 10px;
  transition: transform 0.18s, box-shadow 0.18s; cursor: pointer;
  text-decoration: none;
}
.module-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.18); }
.mc-ebios { background: linear-gradient(135deg,#1e3a8a,#2563eb); }
.mc-iec   { background: linear-gradient(135deg,#4c1d95,#7c3aed); }
.mc-ri    { background: linear-gradient(135deg,#78350f,#d97706); }
.mc-evrp  { background: linear-gradient(135deg,#064e3b,#059669); }
.module-card .mc-icon  { font-size: 2rem; }
.module-card .mc-title { font-size: 1.125rem; font-weight: 800; letter-spacing: -0.01em; }
.module-card .mc-sub   { font-size: 0.8rem; opacity: 0.75; }
.module-card .mc-arrow { margin-top: auto; font-size: 1.25rem; opacity: 0.6; }

/* ── Contact form ── */
.contact-card {
  background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: 20px; padding: 48px; max-width: 640px; margin: 0 auto;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}
.form-row { display: flex; gap: 16px; }
@media (max-width: 600px) { .form-row { flex-direction: column; } }
.form-group { display: flex; flex-direction: column; gap: 6px; flex: 1; margin-bottom: 16px; }
.form-group label { font-size: 0.875rem; font-weight: 600; }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 14px; border-radius: 8px;
  border: 1.5px solid var(--c-border); font-size: 0.9375rem;
  font-family: inherit; background: var(--c-bg);
  transition: border-color 0.15s; outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--c-ebios); }
.form-group textarea { min-height: 100px; resize: vertical; }

/* ── AI chat bubble (aide IA) ── */
.ai-section { background: var(--c-hero); color: #fff; padding: 80px 0; }
.ai-section .section-title { color: #fff; }
.ai-section .section-subtitle { color: #94a3b8; }

.ai-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }
.ai-tab {
  padding: 7px 16px; border-radius: 8px; font-size: 0.8125rem; font-weight: 600;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.7); cursor: pointer; transition: all 0.15s;
}
.ai-tab.active, .ai-tab:hover {
  background: rgba(255,255,255,0.18); color: #fff;
  border-color: rgba(255,255,255,0.3);
}

.ai-demo {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px; overflow: hidden;
}
.ai-demo-header {
  background: rgba(255,255,255,0.08); padding: 12px 20px;
  display: flex; align-items: center; gap: 10px;
  font-size: 0.8125rem; font-weight: 600; color: rgba(255,255,255,0.7);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.ai-demo-header .ai-dot { width: 8px; height: 8px; border-radius: 50%; background: #60a5fa; }
.ai-demo-body { padding: 20px; display: flex; flex-direction: column; gap: 14px; }

.chat-msg { display: flex; gap: 10px; align-items: flex-start; }
.chat-msg.user { flex-direction: row-reverse; }
.chat-avatar {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.875rem;
}
.av-user { background: rgba(255,255,255,0.15); }
.av-ai   { background: #2563eb; }
.chat-bubble {
  max-width: 78%; padding: 10px 14px; border-radius: 12px;
  font-size: 0.8125rem; line-height: 1.55;
}
.chat-msg.user .chat-bubble {
  background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.85);
  border-radius: 12px 4px 12px 12px;
}
.chat-msg.ai .chat-bubble {
  background: rgba(37,99,235,0.3); color: #fff;
  border-radius: 4px 12px 12px 12px;
}
.chat-suggestion {
  display: inline-block; margin: 4px 4px 0 0;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
  border-radius: 99px; padding: 3px 10px; font-size: 0.7rem; cursor: pointer;
  transition: background 0.12s;
}
.chat-suggestion:hover { background: rgba(255,255,255,0.2); }

/* ── Bibliothèques ── */
.biblio-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 20px;
}
.biblio-card {
  background: var(--c-white); border: 1px solid var(--c-border);
  border-radius: 14px; padding: 22px; transition: box-shadow 0.2s, transform 0.2s;
}
.section--alt .biblio-card { background: var(--c-bg); }
.biblio-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.07); transform: translateY(-2px); }
.biblio-card-header {
  display: flex; align-items: center; gap: 12px; margin-bottom: 12px;
}
.biblio-icon {
  width: 38px; height: 38px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
  flex-shrink: 0;
}
.biblio-card h3 { font-size: 0.9375rem; font-weight: 700; margin: 0; }
.biblio-card p  { font-size: 0.8125rem; color: var(--c-muted); line-height: 1.5; margin-bottom: 12px; }
.biblio-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.biblio-tag {
  font-size: 0.7rem; font-weight: 600; padding: 2px 8px; border-radius: 4px;
}

/* ── Footer ── */
footer {
  background: var(--c-hero); color: #94a3b8;
  padding: 40px 0; text-align: center; font-size: 0.875rem;
}
footer strong { color: #fff; }
.footer-links { display: flex; gap: 24px; justify-content: center; margin-bottom: 16px; flex-wrap: wrap; }
.footer-links a { color: #94a3b8; transition: color 0.15s; }
.footer-links a:hover { color: #fff; }