/* ==========================================================
   theme.css — design system partagé (instrument / datasheet)
   ========================================================== */
* { box-sizing: border-box; }

:root {
    --paper: #1c1f26; --panel: #23272f; --panel-2: #1f232b;
    --ink: #e8eaed; --ink-dim: #8b909c; --ink-faint: #5b606b;
    --line: #353a44; --line-soft: #2b2f38;
    --amber: #ffb000; --green: #00d98b; --red: #ff5a52; --blue: #4d9fff;
    --grid-op: 1;
}
[data-theme="light"] {
    --paper: #f3f1ea; --panel: #ffffff; --panel-2: #faf9f5;
    --ink: #20242b; --ink-dim: #6b7180; --ink-faint: #a0a5b0;
    --line: #d9d6cc; --line-soft: #e7e4db;
    --amber: #c47a00; --green: #00936a; --red: #d63a32; --blue: #2563c9;
    --grid-op: 0.5;
}

html, body { margin: 0; }
body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--paper); color: var(--ink);
    min-height: 100vh; transition: background 0.3s, color 0.3s; position: relative;
}
body::before {
    content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
    opacity: var(--grid-op);
    background-image: radial-gradient(var(--line-soft) 1.2px, transparent 1.2px);
    background-size: 26px 26px;
}
.shell { position: relative; z-index: 1; max-width: 980px; margin: 0 auto; padding: 34px 22px 60px; }

/* HEADER */
.masthead {
    display: flex; justify-content: space-between; align-items: flex-end;
    gap: 16px; flex-wrap: wrap;
    border-bottom: 2px solid var(--ink); padding-bottom: 16px; margin-bottom: 4px;
}
.masthead h1 {
    font-family: 'Newsreader', serif; font-weight: 600;
    font-size: 38px; line-height: 1; margin: 0; letter-spacing: -0.02em;
}
.masthead .meta {
    font-family: 'IBM Plex Mono', monospace; font-size: 11px;
    letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-dim); margin-top: 8px;
}
.controls { display: flex; gap: 8px; flex-wrap: wrap; }
.btn {
    background: transparent; color: var(--ink); border: 1px solid var(--line);
    padding: 8px 14px; font-family: 'IBM Plex Mono', monospace;
    font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase;
    cursor: pointer; text-decoration: none; transition: all 0.15s; border-radius: 999px;
}
.btn:hover { border-color: var(--ink); }
.btn-on { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.btn-logout { border-color: var(--line); color: var(--red); }
.btn-logout:hover { border-color: var(--red); }

/* bouton burger : caché sur desktop */
.nav-toggle { display: none; }

@media (max-width: 640px) {
    .nav-toggle {
        display: inline-flex; align-items: center; gap: 6px;
    }
    /* la barre de nav devient un panneau repliable */
    .controls.nav-collapsible {
        position: relative;
    }
    .controls.nav-collapsible .nav-links {
        display: none;
        position: absolute; top: calc(100% + 8px); right: 0; z-index: 30;
        flex-direction: column; gap: 6px;
        background: var(--panel); border: 1px solid var(--line);
        border-radius: 14px; padding: 10px; min-width: 170px;
        box-shadow: 0 18px 40px rgba(0,0,0,0.4);
    }
    .controls.nav-collapsible.open .nav-links { display: flex; }
    .controls.nav-collapsible .nav-links .btn { text-align: center; }
}

/* états couleur partagés */
.is-pass { color: var(--green); }
.is-fail { color: var(--red); }

/* carte générique */
.card-panel {
    background: var(--panel); border: 1px solid var(--line);
    border-radius: 16px; overflow: hidden; margin-bottom: 18px;
}
.section-title {
    font-family: 'IBM Plex Mono', monospace; font-size: 11px;
    letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim);
    margin: 30px 0 12px;
}

@media (max-width: 600px) {
    .masthead h1 { font-size: 30px; }
}