/* ─────────────────────────────────────────────
   Portfolio Camel Djoulako
   Tokens : Papier #F7F8FA · Encre #12181F · Signal #2D6CDF
   Typo : Zilla Slab (display) · Public Sans (corps) · IBM Plex Mono (légendes)
   ───────────────────────────────────────────── */

:root {
  --paper: #f7f8fa;
  --ink: #12181f;
  --signal: #2d6cdf;
  --signal-strong: #1f56c4;
  --signal-soft: rgba(45, 108, 223, 0.1);
  --signal-shadow: rgba(45, 108, 223, 0.18);

  /* Nuances : uniquement des transparences de l'Encre */
  --ink-muted: rgba(18, 24, 31, 0.78);
  --ink-soft: rgba(18, 24, 31, 0.62);
  --hairline: rgba(18, 24, 31, 0.14);
  --wash: rgba(18, 24, 31, 0.045);

  --font-display: "Zilla Slab", Georgia, serif;
  --font-body: "Public Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", Consolas, monospace;

  --sidebar-w: 260px;
}

/* ── Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-padding-top: 24px;
}
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul {
  list-style: none;
}
h1,
h2,
h3 {
  text-wrap: balance;
}
p {
  text-wrap: pretty;
}

/* Liens */
a {
  color: var(--signal);
  text-decoration: none;
  transition-property: color, opacity;
  transition-duration: 0.18s;
  transition-timing-function: ease;
}

section {
  padding: 104px 72px;
  max-width: 1200px;
  margin-inline: auto;
}

a:hover {
  color: var(--ink);
}

/* Focus clavier visible partout */
:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
  border-radius: 2px;
}

::selection {
  background: var(--signal);
  color: var(--paper);
}

/* ── Loader ── */
.loader {
  display: none;
}
.js .loader {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 26px;
  transition-property: opacity, visibility;
  transition-duration: 0.45s;
  transition-timing-function: ease;
}
.js .loader img {
  width: 200px;
  height: auto;
  animation: loader-pulse 1.6s ease-in-out infinite;
}
.loader-bar {
  width: 132px;
  height: 2px;
  border-radius: 2px;
  background: var(--hairline);
  overflow: hidden;
}
.loader-bar span {
  display: block;
  width: 44%;
  height: 100%;
  border-radius: 2px;
  background: var(--signal);
  animation: loader-slide 1.1s ease-in-out infinite;
}
.js .loader.done {
  opacity: 0;
  visibility: hidden;
}
@keyframes loader-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}
@keyframes loader-slide {
  from {
    transform: translateX(-120%);
  }
  to {
    transform: translateX(350%);
  }
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--paper);
  border-right: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  padding: 44px 0 28px;
  z-index: 100;
  overflow-y: auto;
  transition-property: transform;
  transition-duration: 0.3s;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

.sidebar-identity {
  padding: 0 28px 28px;
}
.sidebar-logo {
  display: inline-block;
}
.sidebar-logo img {
  width: 170px;
  height: auto;
}
.sidebar-role {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-top: 3px;
}

/* Navigation : sobre, ni bordure ni pastille au survol */
.sidebar-nav {
  flex: 1;
  padding: 8px 12px 24px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-muted);
  transition-property: color, background-color;
  transition-duration: 0.15s;
  transition-timing-function: ease;
}
.nav-link::before {
  content: "";
  width: 5px;
  height: 5px;
  background: transparent;
  flex-shrink: 0;
  transition-property: background-color;
  transition-duration: 0.15s;
  transition-timing-function: ease;
}
.nav-link:hover {
  color: var(--ink);
  background: var(--wash);
}
.nav-link.active {
  color: var(--signal);
  background: var(--signal-soft);
}
.nav-link.active::before {
  background: var(--signal);
}

/* Pied de sidebar */
.sidebar-footer {
  padding: 20px 24px 0;
  border-top: 1px solid var(--hairline);
}
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  margin-bottom: 12px;
}
.social-links a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: var(--ink-soft);
  font-size: 15px;
  transition-property: color, background-color, transform;
  transition-duration: 0.15s;
  transition-timing-function: ease;
}
.social-links a:hover {
  color: var(--ink);
  background: var(--wash);
}
.social-links a:active {
  transform: scale(0.96);
}
.sidebar-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
}

/* ── Barre mobile ── */
.mobile-bar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 58px;
  background: var(--paper);
  box-shadow: 0 1px 0 var(--hairline);
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 200;
}
.mobile-bar-logo {
  display: flex;
  align-items: center;
}
.mobile-bar-logo img {
  width: 122px;
  height: auto;
}
.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 9px;
  border-radius: 6px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(18, 24, 31, 0.4);
  z-index: 99;
}
.sidebar-overlay.show {
  display: block;
}

/* ── Contenu principal ── */
.main-content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}
section {
  padding: 104px 72px;
  max-width: 1200px;
}

/* Tête de section */
.section-head {
  margin-bottom: 48px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 600;
  line-height: 1.15;
}
.section-title::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  border-radius: 2px;
  background: var(--signal);
  margin-top: 14px;
}

/* ── Boutons ── */
.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 11px 26px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition-property: background-color, color, box-shadow, transform;
  transition-duration: 0.18s;
  transition-timing-function: ease;
}
.btn-primary {
  background: var(--signal);
  color: #fff;
  box-shadow: 0 8px 20px var(--signal-shadow);
}
.btn-primary:hover {
  background: var(--signal-strong);
  color: #fff;
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: scale(0.96);
}
.btn-lg {
  font-size: 16px;
  padding: 14px 34px;
}
.btn-ghost {
  color: var(--ink);
  box-shadow: inset 0 0 0 1px rgba(18, 24, 31, 0.28);
}
.btn-ghost:hover {
  color: var(--ink);
  box-shadow: inset 0 0 0 1px rgba(18, 24, 31, 0.55);
  background: var(--wash);
}
.btn-ghost:active {
  transform: scale(0.96);
}
.btn-ghost i,
.btn-primary i {
  font-size: 13px;
  transition-property: transform;
  transition-duration: 0.18s;
  transition-timing-function: ease;
}
.btn-ghost:hover i.fa-arrow-right {
  transform: translateX(3px);
}
.btn-ghost:hover i.fa-arrow-down {
  transform: translateY(2px);
}

/* ── Hero ── */
#home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 64px;
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 64px;
  align-items: center;
  width: 100%;
}
.hero-greeting {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 500;
  color: var(--ink-muted);
  margin-bottom: 18px;
}
.wave {
  width: 24px;
  height: 24px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.6vw, 54px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.hero-headline .accent {
  color: var(--signal);
}
.hero-sub {
  font-size: 17px;
  color: var(--ink-muted);
  max-width: 540px;
  margin-bottom: 36px;
}
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Photo du hero */
.hero-visual {
  justify-self: end;
  width: 100%;
  max-width: 420px;
}
.hero-photo {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 24px 48px var(--signal-shadow));
}

/* Moment orchestré au chargement */
@media (prefers-reduced-motion: no-preference) {
  .js .wave {
    transform-origin: 72% 78%;
    animation: wave 2.2s ease 0.9s 2;
  }
  .js .hero-photo {
    opacity: 0;
    animation: photo-in 0.7s cubic-bezier(0.2, 0, 0, 1) 0.3s forwards;
  }
  .js .hero-visual {
    animation: hero-float 7s ease-in-out 1.2s infinite;
  }
}
@keyframes wave {
  0%,
  60%,
  100% {
    transform: rotate(0);
  }
  10%,
  30% {
    transform: rotate(16deg);
  }
  20% {
    transform: rotate(-9deg);
  }
  40% {
    transform: rotate(-5deg);
  }
  50% {
    transform: rotate(11deg);
  }
}
@keyframes photo-in {
  from {
    opacity: 0;
    transform: translateY(22px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes hero-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-9px);
  }
}

/* ── À propos ── */
.about-grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}
.about-photo img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top;
  border-radius: 6px;
  outline: 1px solid rgba(0, 0, 0, 0.1);
  outline-offset: -1px;
  box-shadow:
    0 1px 2px rgba(18, 24, 31, 0.06),
    0 8px 24px rgba(18, 24, 31, 0.08);
}
.about-avail {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 12px;
}
.about-bio {
  font-size: 17px;
  color: var(--ink-muted);
  line-height: 1.8;
  margin-bottom: 36px;
}
.about-bio strong {
  color: var(--ink);
}
.about-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 32px;
  margin: 0;
}
.about-info-item {
  border-top: 1px solid var(--hairline);
  padding-top: 12px;
}
.about-info-item dt {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 3px;
}
.about-info-item dd {
  font-size: 15px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  margin: 0;
}

/* ── Compétences ── */
.skills-table {
  display: flex;
  flex-direction: column;
}
.skills-row {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 24px;
  padding: 18px 0;
  border-top: 1px solid var(--hairline);
}
.skills-row:last-child {
  border-bottom: 1px solid var(--hairline);
}
.skills-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
  padding-top: 3px;
}
.skills-values {
  font-size: 15px;
  color: var(--ink-muted);
}

/* ── Expérience : diagrammes de composants ── */
.exp-list {
  display: flex;
  flex-direction: column;
}
.exp-item {
  padding: 36px 0;
  border-top: 1px solid var(--hairline);
}
.exp-item:last-child {
  border-bottom: 1px solid var(--hairline);
}
.exp-date {
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--signal);
  margin-bottom: 8px;
}
.exp-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 2px;
}
.exp-org {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 12px;
}
.exp-desc {
  font-size: 15px;
  color: var(--ink-muted);
  max-width: 640px;
  margin-bottom: 20px;
}
.exp-desc strong {
  color: var(--ink);
}

/* Mini diagramme de composants */
.comp-diagram {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 0;
}
.comp {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 3px;
  padding: 5px 12px;
  background: var(--paper);
  white-space: nowrap;
}
.comp-link {
  width: 26px;
  height: 1px;
  background: var(--ink-soft);
  flex-shrink: 0;
}

.exp-subhead {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  margin: 56px 0 20px;
}
.edu-list {
  display: flex;
  flex-direction: column;
}
.edu-item {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 24px;
  padding: 16px 0;
  border-top: 1px solid var(--hairline);
}
.edu-item:last-child {
  border-bottom: 1px solid var(--hairline);
}
.edu-date {
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
  padding-top: 3px;
}
.edu-title {
  display: block;
  font-weight: 600;
  font-size: 15px;
}
.edu-org {
  display: block;
  font-size: 14px;
  color: var(--ink-muted);
}

/* ── Réalisations ── */
.project-list {
  display: flex;
  flex-direction: column;
}
.project {
  display: grid;
  grid-template-columns: minmax(0, 440px) minmax(0, 1fr);
  gap: 48px;
  padding: 48px 0;
  border-top: 1px solid var(--hairline);
  align-items: center;
}
.project:last-child {
  border-bottom: 1px solid var(--hairline);
}

/* Mockup MacBook : la capture se glisse derrière la découpe d'écran */
.laptop {
  position: relative;
  display: block;
  filter: drop-shadow(0 18px 32px rgba(18, 24, 31, 0.16));
  transition-property: transform, filter;
  transition-duration: 0.35s;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}
.laptop-frame {
  position: relative;
  width: 100%;
  height: auto;
  z-index: 2;
  pointer-events: none;
}
.laptop-screen {
  position: absolute;
  left: 10.06%;
  top: 3.11%;
  width: 79.94%;
  height: 86.11%;
  overflow: hidden;
  background: #fff;
  z-index: 1;
}
.laptop-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition-property: transform;
  transition-duration: 0.6s;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}
.laptop:hover {
  transform: translateY(-6px);
  filter: drop-shadow(0 26px 44px var(--signal-shadow));
}
.laptop:hover .laptop-screen img {
  transform: scale(1.045);
}

.project-cat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.project-num {
  color: var(--signal);
  font-weight: 500;
  margin-right: 6px;
}
.project-name {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  margin-bottom: 10px;
}
.project-desc {
  font-size: 15px;
  color: var(--ink-muted);
  max-width: 560px;
  margin-bottom: 14px;
}
.project-stack {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 40px;
  font-size: 14px;
  font-weight: 600;
  color: var(--signal);
}
.project-link i {
  font-size: 12px;
  transition-property: transform;
  transition-duration: 0.18s;
  transition-timing-function: ease;
}
.project-link:hover i {
  transform: translateX(3px);
}
.portfolio-more {
  margin-top: 40px;
}

/* ── Freelance : volet secondaire ── */
.freelance-intro {
  font-size: 16px;
  color: var(--ink-muted);
  max-width: 620px;
  margin: -24px 0 36px;
}
.freelance-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 48px;
}
.freelance-item {
  padding: 22px 0;
  border-top: 1px solid var(--hairline);
}
.freelance-name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 6px;
}
.freelance-desc {
  font-size: 14px;
  color: var(--ink-muted);
}

/* ── Contact ── */
.contact-sub {
  font-size: 17px;
  color: var(--ink-muted);
  max-width: 560px;
  margin: -24px 0 40px;
}
.contact-info {
  display: flex;
  flex-direction: column;
  max-width: 560px;
  margin: 0 0 44px;
}
.contact-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 24px;
  padding: 14px 0;
  border-top: 1px solid var(--hairline);
}
.contact-row:last-child {
  border-bottom: 1px solid var(--hairline);
}
.contact-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 3px;
}
.contact-row dd {
  font-size: 15px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  margin: 0;
}

/* ── Révélation au défilement ── */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal {
    opacity: 0;
    transform: translateY(14px);
    transition-property: opacity, transform;
    transition-duration: 0.45s;
    transition-timing-function: ease;
  }
  .js .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .js .reveal-1 {
    transition-delay: 0.08s;
  }
  .js .reveal-2 {
    transition-delay: 0.16s;
  }
  .js .reveal-3 {
    transition-delay: 0.24s;
  }
  .js .reveal-4 {
    transition-delay: 0.32s;
  }
}

/* Mouvement réduit : aucune animation nulle part */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Responsive ── */
@media (max-width: 1200px) {
  section {
    padding-left: 48px;
    padding-right: 48px;
  }
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
  }
  .about-grid {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 40px;
  }
  .project {
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    gap: 36px;
  }
}

@media (max-width: 991px) {
  html {
    scroll-padding-top: 76px;
  }
  .sidebar {
    transform: translateX(calc(-1 * var(--sidebar-w)));
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow:
      0 0 0 1px var(--hairline),
      24px 0 48px rgba(18, 24, 31, 0.12);
  }
  .mobile-bar {
    display: flex;
  }
  .main-content {
    margin-left: 0;
    padding-top: 58px;
  }
  section {
    padding: 72px 24px;
  }
  #home {
    min-height: auto;
    padding-top: 56px;
    padding-bottom: 56px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .hero-visual {
    justify-self: center;
    max-width: 340px;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-photo {
    max-width: 280px;
  }
  .skills-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .freelance-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .project {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .edu-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .contact-row {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .comp-diagram {
    flex-direction: column;
    align-items: flex-start;
  }
  .comp-link {
    width: 1px;
    height: 16px;
    margin-left: 18px;
  }
  .comp {
    white-space: normal;
  }
  .hero-cta .btn-primary,
  .hero-cta .btn-ghost {
    width: 100%;
    justify-content: center;
  }
}