/* ==========================================================================
   30 Days, 30 Projects · page d'accueil
   ========================================================================== */

:root {
  --bg: #0e0e11;
  --surface: #16161b;
  --surface-2: #1d1d24;
  --line: #2a2a33;
  --ink: #ededf0;
  --muted: #8d8d99;
  --radius: 16px;
  --rainbow: linear-gradient(90deg, #ff6b6b, #ffb23d, #6bcb77, #4d96ff, #b06bff);
  /* Même dégradé, bouclé sur lui-même pour pouvoir l'animer sans saut */
  --rainbow-loop: linear-gradient(90deg, #ff6b6b, #ffb23d, #6bcb77, #4d96ff, #b06bff, #ff6b6b);
  --font-title: 'Bricolage Grotesque', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: clip; /* les halos du fond ne créent pas de défilement horizontal */
}

h1, h2, h3 {
  font-family: var(--font-title);
  line-height: 1.05;
  margin: 0;
}

a {
  color: inherit;
}

.container {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  padding-inline: 24px;
}

/* ---------- Halos lumineux du fond ---------- */

.glow {
  position: absolute;
  z-index: -1;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.22;
  pointer-events: none;
  animation: drift 22s ease-in-out infinite alternate;
}

.glow-1 {
  top: -220px;
  right: -120px;
  background: #4d96ff;
}

.glow-2 {
  top: 120px;
  left: -260px;
  background: #ff6b6b;
  animation-delay: -11s;
}

@keyframes drift {
  to {
    transform: translate(80px, 60px) scale(1.15);
  }
}

/* ---------- Navigation ---------- */

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.1rem;
  text-decoration: none;
}

.logo-mark {
  width: 40px;
  height: 40px;
  flex: none;
}

/* L'anneau de 30 segments tourne doucement au survol */
.logo-ring {
  transform-origin: 50% 50%;
  transition: transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.logo:hover .logo-ring {
  transform: rotate(-90deg);
}

.logo-text small {
  color: var(--muted);
  font-weight: 600;
}

.nav-link {
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.2s;
}

.nav-link:hover {
  border-color: var(--ink);
}

/* ---------- Hero ---------- */

.hero {
  padding-block: 70px 50px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(3rem, 10vw, 7.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  min-height: 2.1em; /* deux lignes réservées : rien ne bouge pendant l'écriture */
}

.hero h1 .line {
  display: block;
}

/* « 30 projets. » : dégradé arc-en-ciel qui défile */
.hero h1 .rainbow {
  background: var(--rainbow-loop);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: rainbow-flow 6s linear infinite;
}

@keyframes rainbow-flow {
  to {
    background-position: -200% 0;
  }
}

/* Curseur de la machine à écrire */
.caret {
  display: inline-block;
  width: 0.07em;
  height: 0.85em;
  margin-left: 0.06em;
  vertical-align: -0.04em;
  background: var(--ink);
  border-radius: 2px;
  animation: blink 1s steps(1) infinite;
}

.caret.is-typing {
  animation: none; /* le curseur reste plein pendant la frappe */
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.lead {
  max-width: 40em;
  color: var(--muted);
  font-size: 1.15rem;
  margin: 28px 0 0;
}

/* ---------- Calendrier de progression ---------- */

.progress {
  margin-top: 56px;
}

.progress-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.progress-count {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.6rem;
}

.progress-count small {
  color: var(--muted);
  font-size: 1rem;
  font-weight: 600;
}

.progress-stats {
  color: var(--muted);
  font-size: 0.9rem;
}

.calendar {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  gap: 6px;
}

.day {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 8px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s, border-color 0.15s;
  /* Les cases apparaissent l'une après l'autre au chargement */
  animation: pop 0.5s cubic-bezier(0.2, 0.8, 0.2, 1.2) backwards;
  animation-delay: calc(var(--i) * 25ms + 200ms);
}

@keyframes pop {
  from {
    opacity: 0;
    transform: scale(0.6);
  }
}

.day:hover {
  transform: translateY(-2px);
  border-color: var(--muted);
}

.day.is-done {
  border: 0;
  background: var(--rainbow);
  background-size: 1500% 100%; /* chaque case prend sa teinte dans le dégradé */
  color: var(--bg);
}

.day.is-progress {
  border-color: #ffb23d;
  color: #ffb23d;
  /* Jour en cours : léger halo qui pulse */
  animation: pop 0.5s cubic-bezier(0.2, 0.8, 0.2, 1.2) backwards, pulse 2.4s ease-in-out 1s infinite;
  animation-delay: calc(var(--i) * 25ms + 200ms), 1s;
}

@keyframes pulse {
  50% {
    box-shadow: 0 0 0 4px #ffb23d26;
  }
}

.day.is-late {
  border-color: #ff6b6b;
  background: #ff6b6b1f;
  color: #ff6b6b;
}

.progress-stats .is-late {
  color: #ff6b6b;
}

/* ---------- Projets ---------- */

.projects {
  padding-block: 40px 90px;
}

.projects-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}

.projects-head h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: 500 0.88rem var(--font-body);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.filter:hover {
  color: var(--ink);
}

.filter.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}

.filter-count {
  opacity: 0.6;
  font-size: 0.8em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  scroll-margin-top: 24px;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

/* Halo qui suit la souris sur la carte (position fournie par le JS) */
.card::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    380px circle at var(--mx, 50%) var(--my, 50%),
    color-mix(in srgb, var(--accent) 13%, transparent),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.3s;
}

.card:hover::after {
  opacity: 1;
}

a.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 24px 40px -24px var(--accent);
}

.card:target {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}

/* Apparition des cartes au défilement */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1),
    border-color 0.2s, box-shadow 0.2s;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

a.card.reveal.is-visible:hover {
  transform: translateY(-4px);
  transition-delay: 0s;
}

.preview {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--surface-2);
  overflow: hidden;
}

.preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
  transition: transform 0.4s ease;
}

a.card:hover .preview img {
  transform: scale(1.04);
}

/* Projets à venir : grand numéro du jour à la place de l'image */
.preview-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    repeating-linear-gradient(135deg, transparent 0 14px, rgba(255, 255, 255, 0.025) 14px 15px);
}

.preview-empty span {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 5rem;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--line);
}

.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 18px 18px 20px;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status {
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
}

.status.is-done {
  color: #6bcb77;
  border-color: #6bcb7755;
}

.status.is-progress {
  color: #ffb23d;
  border-color: #ffb23d55;
}

.status.is-late {
  color: #ff6b6b;
  border-color: #ff6b6b55;
  background: #ff6b6b14;
}

.card.is-late {
  border-color: #ff6b6b55;
}

.card h3 {
  font-size: 1.35rem;
  font-weight: 800;
}

.card.is-todo h3 {
  color: #b9b9c2;
}

.card-title {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.card-desc {
  margin: 10px 0 0;
  font-size: 0.92rem;
  color: #c4c4cc;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 10px;
  margin-top: auto;
  padding-top: 16px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--surface-2);
  font-size: 0.78rem;
  color: var(--muted);
}

/* Pastille de couleur de la famille de techno, sur le premier tag */
.tag:first-child::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.card-arrow {
  flex: none;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--accent);
  transition: transform 0.2s;
}

a.card:hover .card-arrow {
  transform: translateX(4px);
}

.empty {
  color: var(--muted);
  text-align: center;
  padding: 40px 0;
}

/* ---------- Pied de page ---------- */

.footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-block: 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.footer a {
  text-decoration: none;
}

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

/* ---------- Mobile ---------- */

@media (max-width: 640px) {
  .hero {
    padding-block: 40px 30px;
  }

  .logo-text small {
    display: none;
  }

  .calendar {
    grid-template-columns: repeat(10, 1fr);
    gap: 5px;
  }

  .day {
    font-size: 0.68rem;
    border-radius: 6px;
  }

  .glow {
    width: 360px;
    height: 360px;
  }
}

/* ---------- Animations réduites ---------- */

/* Pour les personnes qui ont demandé moins d'animations à leur système */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .caret {
    display: none;
  }
}