/* ============================================================
   FRANK BOUCHUT — PORTFOLIO CSS
   Palette : fond sombre #0F1117, accent #E8510A (orange CV),
   blanc cassé #F4F2EF, gris clair #8B909A
   Typos : Sora (titres) + Inter (corps)
   ============================================================ */

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0F1117;
  --bg-card:     #171B25;
  --bg-card2:    #1E2330;
  --accent:      #E8510A;
  --accent-dim:  rgba(232, 81, 10, 0.15);
  --accent-dim2: rgba(232, 81, 10, 0.08);
  --white:       #F4F2EF;
  --muted:       #8B909A;
  --border:      rgba(255,255,255,0.07);
  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 4px 24px rgba(0,0,0,0.4);
  --transition:  0.25s ease;
  --font-display: 'Sora', sans-serif;
  --font-body:    'Inter', sans-serif;
  --max-w:       1140px;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- CONTAINER ---------- */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn--primary:hover { background: #c94408; border-color: #c94408; transform: translateY(-2px); }
.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.25);
}
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }
.btn--ghost {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: transparent;
}
.btn--ghost:hover { background: var(--accent); color: #fff; }
.btn--full { width: 100%; justify-content: center; }

/* ---------- SECTION ---------- */
.section { padding-block: clamp(4rem, 8vw, 7rem); }
.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}
.section__title::after {
  content: '';
  display: block;
  height: 3px;
  width: 3rem;
  background: var(--accent);
  border-radius: 2px;
  margin-top: 0.5rem;
}
.section__lead {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 70ch;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}
.section__lead strong { color: var(--white); }

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1rem 0;
  background: rgba(15,17,23,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.nav__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.02em;
}
.nav__logo:hover { color: var(--accent); }
.nav__links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width var(--transition);
  border-radius: 2px;
}
.nav__links a:hover { color: var(--white); }
.nav__links a:hover::after { width: 100%; }
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__burger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---------- HERO ---------- */
.hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
  padding-bottom: 4rem;
  position: relative;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(232,81,10,0.08) 0%, transparent 70%);
}
.hero__content {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
  display: flex;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.hero__photo-wrap {
  flex-shrink: 0;
  position: relative;
}
.hero__photo-wrap::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: conic-gradient(var(--accent), transparent 60%, var(--accent));
  animation: rotate 8s linear infinite;
  opacity: 0.5;
}
@keyframes rotate { to { transform: rotate(360deg); } }
.hero__photo {
  width: clamp(140px, 20vw, 200px);
  height: clamp(140px, 20vw, 200px);
  border-radius: 50%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  border: 3px solid var(--bg-card);
}
.hero__text { flex: 1; min-width: 0; }
.hero__eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}
.hero__name {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--white);
}
.hero__name span { color: var(--accent); }
.hero__tagline {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 2rem;
}
.hero__stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.hero__stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.hero__stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--muted);
  animation: bounce 2s ease-in-out infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ---------- ABOUT ---------- */
.about__text {
  color: var(--muted);
  margin-bottom: 1rem;
  max-width: 70ch;
  line-height: 1.75;
}
.about__text strong { color: var(--white); }
.about__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
  margin-bottom: 2rem;
}
.about__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition);
}
.about__card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}
.about__icon {
  display: inline-flex;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.about__card h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.about__card p { font-size: 0.88rem; color: var(--muted); }
.about__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---------- PARCOURS ---------- */
.parcours { background: var(--bg-card2); }
.parcours__col-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1.75rem;
  margin-top: 3rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.parcours__col-header:first-of-type { margin-top: 0; }

/* TIMELINE */
.timeline { display: flex; flex-direction: column; gap: 1.5rem; }
.timeline__item { position: relative; padding-left: 2rem; }
.timeline__item::before {
  content: '';
  position: absolute;
  left: 8px; top: 1.5rem; bottom: -1.5rem;
  width: 1px;
  background: var(--border);
}
.timeline__item:last-child::before { display: none; }
.timeline__dot {
  position: absolute;
  left: 0; top: 1.25rem;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 2px solid var(--accent);
  z-index: 1;
}
.timeline__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
}
.timeline__card:hover { border-color: rgba(232,81,10,0.3); }
.timeline__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.timeline__date {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.3rem;
}
.timeline__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.2rem;
}
.timeline__company {
  font-size: 0.88rem;
  color: var(--muted);
}
.timeline__toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 4px;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.timeline__toggle:hover { color: var(--accent); border-color: var(--accent); }
.timeline__toggle.open svg { transform: rotate(180deg); }
.timeline__toggle svg { transition: transform var(--transition); }
.timeline__badge-row { margin-bottom: 0.75rem; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
}
.badge--accent {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(232,81,10,0.3);
}
.timeline__summary { font-size: 0.9rem; color: var(--muted); margin-bottom: 0.75rem; }
.timeline__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.75rem; }
.tag {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.2rem 0.65rem;
  font-size: 0.78rem;
  color: var(--muted);
}

/* Timeline details (accordion) */
.timeline__details {
  display: none;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  flex-direction: column;
  gap: 1.25rem;
}
.timeline__details.open { display: flex; }
.timeline__details ul {
  padding-left: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.timeline__details li {
  font-size: 0.9rem;
  color: var(--muted);
  list-style: disc;
}
.timeline__details li strong { color: var(--white); }
.detail-group__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.6rem;
}
.detail-group__title svg { color: var(--accent); flex-shrink: 0; }
.stack {
  font-size: 0.88rem;
  color: var(--muted);
}

/* FORMATIONS */
.formations {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.25rem;
}
.formation__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  transition: border-color var(--transition);
}
.formation__card:hover { border-color: rgba(232,81,10,0.3); }
.formation__date {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
  padding-top: 2px;
  min-width: 80px;
}
.formation__body h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.formation__school {
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.formation__body p {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

/* CERTIFICATIONS */
.certifs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.certif__group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.certif__group-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.certif__items { display: flex; flex-direction: column; gap: 0.75rem; }
.certif__item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  color: var(--muted);
}
.certif__item svg { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.certif__item div { display: flex; flex-direction: column; gap: 2px; }
.certif__item strong { font-size: 0.88rem; color: var(--white); font-weight: 600; }
.certif__item span { font-size: 0.78rem; color: var(--muted); }

/* ---------- COMPÉTENCES ---------- */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.skill__block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color var(--transition);
}
.skill__block:hover { border-color: rgba(232,81,10,0.3); }
.skill__block-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.skill__block-title svg { color: var(--accent); }
.skill__sub { margin-bottom: 1rem; }
.skill__sub h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.skill__sub ul { padding-left: 1rem; display: flex; flex-direction: column; gap: 0.3rem; }
.skill__sub li { font-size: 0.88rem; color: var(--muted); list-style: disc; }
.skill__tools { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.tool-badge {
  background: var(--accent-dim2);
  border: 1px solid rgba(232,81,10,0.2);
  color: var(--accent);
  border-radius: 6px;
  padding: 0.25rem 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
}
.kpi__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
.kpi__item {
  background: var(--accent-dim2);
  border: 1px solid rgba(232,81,10,0.15);
  border-radius: 8px;
  padding: 0.6rem;
  text-align: center;
}
.kpi__label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
}
.soft__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}
.soft__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.soft__item svg { color: var(--accent); flex-shrink: 0; }

/* ---------- CONTACT ---------- */
.contact { background: var(--bg-card2); }
.contact__layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: start;
}
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.92rem;
  color: var(--muted);
  transition: color var(--transition);
}
.contact__item svg { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.contact__item:not(.contact__item--text):hover { color: var(--white); }

/* FORM */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form__group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}
.form__group label span { color: var(--accent); margin-left: 2px; }
.form__group input,
.form__group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 1rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--white);
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}
.form__group input:focus,
.form__group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--muted); opacity: 0.6; }
.form__feedback {
  font-size: 0.88rem;
  text-align: center;
  min-height: 1.2em;
}
.form__feedback.success { color: #4ade80; }
.form__feedback.error { color: #f87171; }

/* ---------- FOOTER ---------- */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding-block: 1.5rem;
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--muted);
}
.footer__links {
  display: flex;
  gap: 1rem;
}
.footer__links a {
  color: var(--muted);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--accent); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0; right: -100%;
    height: 100dvh;
    width: 75vw;
    max-width: 320px;
    background: var(--bg-card);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transition: right var(--transition);
    padding: 2rem;
    border-left: 1px solid var(--border);
    font-size: 1.1rem;
  }
  .nav__links.open { right: 0; }
  .nav__burger { display: flex; }

  .hero__content { flex-direction: column; text-align: center; }
  .hero__cta { justify-content: center; }
  .hero__stats { justify-content: center; }
  .hero__photo-wrap::before { animation: none; }

  .contact__layout { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }

  .formation__card { flex-direction: column; gap: 0.5rem; }
  .formation__date { white-space: normal; }

  .soft__list { grid-template-columns: 1fr; }
  .kpi__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .hero__stats { flex-direction: column; align-items: center; gap: 1rem; }
  .about__cards { grid-template-columns: 1fr; }
  .skills__grid { grid-template-columns: 1fr; }
  .certifs { grid-template-columns: 1fr; }
  .formations { grid-template-columns: 1fr; }
}

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}