/* ZeroBytes — thème terminal / cyber */

:root {
  --bg:        #050a06;
  --bg-panel:  rgba(6, 18, 10, 0.72);
  --green:     #00ff9c;
  --green-dim: #12b877;
  --green-deep:#0a5f42;
  --green-soft:rgba(0, 255, 156, 0.10);
  --text:      #b8ffe0;
  --text-mute: #5f9d83;
  --danger:    #ff4d6d;
  --line:      rgba(0, 255, 156, 0.22);
  --mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(1000px 600px at 50% -10%, rgba(0, 255, 156, 0.12), transparent 70%),
    linear-gradient(180deg, #060d08 0%, #030603 100%);
}

/* --- pluie binaire --- */
#rain {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}

/* --- effets CRT --- */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.22) 3px,
    rgba(0, 0, 0, 0.22) 4px
  );
  mix-blend-mode: multiply;
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: 49;
  pointer-events: none;
  background: radial-gradient(circle at 50% 45%, transparent 45%, rgba(0, 0, 0, 0.75) 100%);
}

/* --- barre du haut --- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--line);
  background: rgba(4, 10, 6, 0.82);
  backdrop-filter: blur(6px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text);
  text-decoration: none;
  text-shadow: 0 0 12px rgba(0, 255, 156, 0.45);
}
.brand-accent { color: var(--green); }
.brand-bracket { color: var(--green-dim); }

.nav {
  margin-left: auto;
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav a {
  color: var(--text-mute);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav a:hover, .nav a:focus-visible { color: var(--green); border-bottom-color: var(--green); }

/* --- sélecteur de langue --- */
.lang { position: relative; }

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.7rem;
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--green);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.lang-btn:hover, .lang-btn:focus-visible {
  background: var(--green-soft);
  border-color: var(--green);
}
.caret { font-size: 0.7rem; }

.lang-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 190px;
  margin: 0;
  padding: 0.25rem;
  list-style: none;
  background: #030805;
  border: 1px solid var(--line);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7);
  max-height: 60vh;
  overflow-y: auto;
}
.lang-menu li { margin: 0; }
.lang-menu button {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.45rem 0.6rem;
  font: inherit;
  font-size: 0.82rem;
  text-align: left;
  color: var(--text-mute);
  background: transparent;
  border: 0;
  cursor: pointer;
}
.lang-menu button:hover,
.lang-menu button:focus-visible { background: var(--green-soft); color: var(--green); }
.lang-menu button[aria-selected="true"] { color: var(--green); }
.lang-menu button[aria-selected="true"]::after { content: "◂"; margin-left: auto; }
.lang-code { color: var(--green-deep); font-size: 0.72rem; }

/* --- sections --- */
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5rem) clamp(1rem, 4vw, 2.5rem) 4rem;
}

.hero { text-align: left; }

.prompt-line {
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
  color: var(--text-mute);
  min-height: 1.6em;
}
.prompt { color: var(--green-dim); margin-right: 0.5rem; }
.cmd { color: var(--text); }

.caret-block {
  display: inline-block;
  width: 0.6em;
  height: 1em;
  margin-left: 2px;
  vertical-align: -0.15em;
  background: var(--green);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.title {
  position: relative;
  margin: 0 0 0.6rem;
  font-size: clamp(2.6rem, 11vw, 6.5rem);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--green);
  text-shadow: 0 0 24px rgba(0, 255, 156, 0.45), 0 0 70px rgba(0, 255, 156, 0.18);
}
.title::before,
.title::after {
  content: attr(data-glitch);
  position: absolute;
  inset: 0;
  clip-path: inset(0 0 55% 0);
  opacity: 0;                 /* invisible hors des micro-glitchs */
  pointer-events: none;
}
.title::before { color: #00e5ff; animation: glitch-a 6.5s infinite steps(1, end); }
.title::after  { color: #ff2e88; clip-path: inset(55% 0 0 0); animation: glitch-b 7.9s infinite steps(1, end); }

@keyframes glitch-a {
  0%   { opacity: 0; transform: translate(0); }
  95%  { opacity: 0.7; transform: translate(-4px, -2px); }
  96%  { opacity: 0; }
  97%  { opacity: 0.7; transform: translate(3px, 1px); }
  98%, 100% { opacity: 0; transform: translate(0); }
}
@keyframes glitch-b {
  0%   { opacity: 0; transform: translate(0); }
  93%  { opacity: 0.7; transform: translate(4px, 2px); }
  94%  { opacity: 0; }
  96%  { opacity: 0.7; transform: translate(-3px, -1px); }
  97%, 100% { opacity: 0; transform: translate(0); }
}

.subtitle {
  margin: 0 0 1.8rem;
  font-size: 0.9rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.lede {
  max-width: 62ch;
  margin: 0 0 2rem;
  padding-left: 1rem;
  border-left: 2px solid var(--green);
  font-size: clamp(1.05rem, 2.4vw, 1.4rem);
  color: var(--text);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.9rem;
  margin-bottom: 2.5rem;
  font-size: 0.82rem;
  color: var(--green);
  border: 1px solid var(--line);
  background: var(--green-soft);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.25; transform: scale(0.75); } }

/* --- indicateurs --- */
.meters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  margin: 0 0 2.5rem;
  background: var(--line);
  border: 1px solid var(--line);
}
.meter { padding: 1rem 1.2rem; background: var(--bg-panel); }
.meter dt {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.meter dd {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0.45rem 0 0;
  font-size: 1.5rem;
  color: var(--green);
}
.bar {
  flex: 1;
  height: 8px;
  background: rgba(0, 255, 156, 0.12);
  border: 1px solid var(--green-deep);
}
.bar i {
  display: block;
  height: 100%;
  width: var(--fill);
  background: repeating-linear-gradient(90deg, var(--green) 0 4px, transparent 4px 7px);
}
.meter-val { font-size: 1rem; }

/* --- boutons --- */
.cta-row { display: flex; flex-wrap: wrap; gap: 0.9rem; margin: 0; }

.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  font: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--green);
  background: transparent;
  border: 1px solid var(--green-dim);
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, color 0.2s;
}
.btn:hover, .btn:focus-visible {
  background: var(--green-soft);
  box-shadow: 0 0 22px rgba(0, 255, 156, 0.28);
}
.btn-primary {
  color: #021009;
  background: var(--green);
  border-color: var(--green);
  font-weight: 700;
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: #6bffc4;
  color: #021009;
}
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* --- panneaux --- */
.panel {
  margin-top: clamp(3rem, 8vw, 5rem);
  padding: clamp(1.4rem, 4vw, 2.2rem);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  backdrop-filter: blur(3px);
}
.panel-title {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
}
.panel-title span[aria-hidden] { color: var(--green-deep); }
.panel-text { max-width: 70ch; color: var(--text-mute); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin: 1.8rem 0 0;
  padding: 0;
  list-style: none;
}
.card {
  padding: 1.1rem;
  border: 1px solid var(--line);
  background: rgba(0, 255, 156, 0.04);
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--green); transform: translateY(-3px); }
.card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
}
.card p { margin: 0; font-size: 0.9rem; color: var(--text-mute); }

/* --- formulaire --- */
.form {
  display: grid;
  gap: 1.1rem;
  max-width: 620px;
  margin-top: 1.8rem;
}
.form > .btn { justify-self: start; }
.field { display: grid; gap: 0.35rem; }
.field label {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--line);
  border-radius: 0;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder,
.field textarea::placeholder { color: rgba(95, 157, 131, 0.6); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 1px var(--green), 0 0 18px rgba(0, 255, 156, 0.18);
}
.field select option { background: #030805; color: var(--text); }

.field [aria-invalid="true"] { border-color: var(--danger); }
.error {
  margin: 0;
  min-height: 1.1em;
  font-size: 0.78rem;
  color: var(--danger);
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin: 0;
  font-size: 0.88rem;
  min-height: 1.4em;
}
.form-status.ok { color: var(--green); }
.form-status.ko { color: var(--danger); }

/* --- pied de page --- */
.footer {
  padding: 2rem clamp(1rem, 4vw, 2.5rem) 3rem;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-mute);
}
.footer p { margin: 0.2rem 0; }
.footer-note { color: var(--green-deep); }

/* --- accessibilité / préférences --- */
:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  #rain { display: none; }
  .title::before, .title::after { animation: none; }
  .dot, .caret-block { animation: none; }
  * { transition: none !important; }
}

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; gap: 0.6rem 1rem; }
  .brand { font-size: 0.9rem; }
  .lang { margin-left: auto; }
  .nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    gap: 1.2rem;
    font-size: 0.72rem;
  }
  .nav a { white-space: nowrap; }
  .prompt-line { font-size: 0.78rem; }
  .lede { font-size: 1.05rem; }
  .subtitle { letter-spacing: 0.18em; }
}