/* ============================================================
   NEXUS — style.css  (public)
   Mobile-first, responsive portrait & landscape
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');

/* ── Variables ─────────────────────────────────────────── */
:root {
    --bg:          #0e0f11;
    --bg-2:        #14161a;
    --bg-3:        #1c1f25;
    --border:      #2a2d35;
    --text:        #e8eaf0;
    --text-muted:  #6b7280;
    --accent:      #4f8ef7;
    --accent-hover:#3a7ae8;
    --accent-soft: rgba(79,142,247,.12);
    --danger:      #ef4444;
    --success:     #22c55e;
    --warning:     #f59e0b;
    --radius:      8px;
    --radius-lg:   14px;
    --shadow:      0 4px 24px rgba(0,0,0,.45);
    --font-head:   'Syne', sans-serif;
    --font-body:   'DM Sans', sans-serif;
    --tr:          .2s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ──────────────────────────────────────────────── */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body { background:var(--bg); color:var(--text); font-family:var(--font-body);
       font-size:15px; line-height:1.65; min-height:100vh; overflow-x:hidden; }
a { color:var(--accent); text-decoration:none; transition:color var(--tr); }
a:hover { color:var(--accent-hover); }
img { max-width:100%; display:block; height:auto; }

/* ── Layout ─────────────────────────────────────────────── */
.container { width:100%; max-width:1100px; margin:0 auto; padding:0 16px; }

/* ── Header ─────────────────────────────────────────────── */
.site-header {
    position:sticky; top:0; z-index:100;
    background:rgba(14,15,17,.92); backdrop-filter:blur(12px);
    border-bottom:1px solid var(--border);
}
.site-header .container {
    display:flex; align-items:center; justify-content:space-between;
    height:56px; gap:12px;
}
.site-logo {
    font-family:var(--font-head); font-weight:800; font-size:1.2rem;
    color:var(--text) !important; letter-spacing:-.5px; flex-shrink:0;
}
.site-logo::before { content:'⬡ '; color:var(--accent); }
.site-nav { display:flex; align-items:center; gap:16px; font-size:.85rem; flex-wrap:wrap; }
.site-nav a { color:var(--text-muted); }
.site-nav a:hover { color:var(--text); }
.nav-user { color:var(--text-muted); font-size:.78rem; }

/* ── Main ───────────────────────────────────────────────── */
.site-main { padding:32px 0 64px; }

/* ── Footer ─────────────────────────────────────────────── */
.site-footer { border-top:1px solid var(--border); padding:20px 0;
               text-align:center; color:var(--text-muted); font-size:.8rem; }

/* ── Boutons ─────────────────────────────────────────────── */
.btn {
    display:inline-flex; align-items:center; gap:6px;
    padding:9px 18px; border-radius:var(--radius);
    font-family:var(--font-body); font-size:.875rem; font-weight:500;
    cursor:pointer; border:none; transition:all var(--tr);
    text-decoration:none; white-space:nowrap;
}
.btn-primary  { background:var(--accent); color:#fff; }
.btn-primary:hover { background:var(--accent-hover); color:#fff; }
.btn-outline  { background:transparent; color:var(--text); border:1px solid var(--border); }
.btn-outline:hover { border-color:var(--accent); color:var(--accent); }
.btn-danger   { background:transparent; color:var(--danger); border:1px solid var(--danger); }
.btn-danger:hover { background:var(--danger); color:#fff; }
.btn-sm { padding:6px 14px; font-size:.8rem; }

/* ── Formulaires ─────────────────────────────────────────── */
.form-group { margin-bottom:18px; }
.form-label {
    display:block; margin-bottom:6px; font-size:.78rem; font-weight:500;
    color:var(--text-muted); text-transform:uppercase; letter-spacing:.06em;
}
.form-control {
    width:100%; background:var(--bg-3); border:1px solid var(--border);
    border-radius:var(--radius); color:var(--text); font-family:var(--font-body);
    font-size:.9rem; padding:10px 14px;
    transition:border-color var(--tr),box-shadow var(--tr); outline:none;
    -webkit-appearance:none; appearance:none;
}
.form-control:focus { border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft); }
.form-control::placeholder { color:var(--text-muted); }
textarea.form-control { resize:vertical; min-height:90px; }
select.form-control {
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat:no-repeat; background-position:right 12px center; padding-right:34px;
}

/* ── Alertes ─────────────────────────────────────────────── */
.alert {
    padding:11px 15px; border-radius:var(--radius); margin-bottom:14px;
    font-size:.875rem; border-left:3px solid;
}
.alert-success { background:rgba(34,197,94,.1);  border-color:var(--success); color:#86efac; }
.alert-error   { background:rgba(239,68,68,.1);  border-color:var(--danger);  color:#fca5a5; }
.alert-warning { background:rgba(245,158,11,.1); border-color:var(--warning); color:#fcd34d; }
.alert-info    { background:var(--accent-soft);  border-color:var(--accent);  color:#93c5fd; }

/* ── Badge ───────────────────────────────────────────────── */
.badge {
    display:inline-block; padding:3px 10px; border-radius:20px;
    font-size:.7rem; font-weight:600; color:#fff;
    letter-spacing:.04em; text-transform:uppercase; white-space:nowrap;
}

/* ── Auth pages ──────────────────────────────────────────── */
.auth-page {
    min-height:100vh; background:var(--bg);
    display:flex; align-items:flex-start; justify-content:center;
    padding:40px 16px;
}
.auth-box {
    width:100%; max-width:420px; background:var(--bg-2);
    border:1px solid var(--border); border-radius:var(--radius-lg);
    padding:36px 28px; box-shadow:var(--shadow);
}
.auth-logo {
    font-family:var(--font-head); font-weight:800; font-size:1.4rem;
    color:var(--text); margin-bottom:28px; text-align:center;
}
.auth-logo span { color:var(--accent); }
.auth-title    { font-size:1.05rem; font-weight:600; margin-bottom:6px; }
.auth-subtitle { color:var(--text-muted); font-size:.85rem; margin-bottom:24px; }
.auth-footer   { margin-top:20px; text-align:center; font-size:.85rem; color:var(--text-muted); }

/* ── Vue projet public ───────────────────────────────────── */
.project-hero { margin-bottom:32px; padding-bottom:24px; border-bottom:1px solid var(--border); }
.project-hero h1 {
    font-size:clamp(1.6rem,5vw,3rem); font-weight:800;
    margin-bottom:14px; letter-spacing:-.03em; word-break:break-word;
}
.project-meta {
    display:flex; align-items:center; gap:10px; flex-wrap:wrap;
    color:var(--text-muted); font-size:.8rem;
}
.project-description { color:var(--text-muted); font-size:.95rem; line-height:1.7; margin-top:14px; }

/* ── Boutons expand/collapse ─────────────────────────────── */
.lines-actions { display:flex; gap:8px; margin-bottom:16px; flex-wrap:wrap; }
.lines-actions .btn { font-size:.8rem; }

/* ── Accordéon lignes ────────────────────────────────────── */
.lines-list { display:flex; flex-direction:column; gap:8px; }
.line-item {
    background:var(--bg-2); border:1px solid var(--border);
    border-radius:var(--radius-lg); overflow:hidden;
    transition:border-color var(--tr);
}
.line-item:hover { border-color:#3a3d47; }
.line-item.open  { border-color:var(--accent); }
.line-header {
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 20px; cursor:pointer; user-select:none; gap:12px;
}
.line-header h3 { font-size:.95rem; font-weight:600; flex:1; word-break:break-word; }
.line-chevron { color:var(--text-muted); transition:transform var(--tr); flex-shrink:0; font-size:1rem; }
.line-item.open .line-chevron { transform:rotate(180deg); }
.line-body { display:none; padding:0 20px 20px; border-top:1px solid var(--border); }
.line-item.open .line-body { display:block; }
.line-content { padding-top:18px; font-size:.9rem; line-height:1.75; }
.line-content h1,.line-content h2,.line-content h3 { margin:14px 0 6px; }
.line-content p  { margin-bottom:10px; }
.line-content ul,.line-content ol { padding-left:20px; margin-bottom:10px; }
.line-content code { background:var(--bg-3); padding:2px 6px; border-radius:4px; font-size:.85em; }
.line-content pre  { background:var(--bg-3); border:1px solid var(--border); border-radius:var(--radius); padding:14px; overflow-x:auto; margin-bottom:10px; }
.line-content blockquote { border-left:3px solid var(--accent); padding-left:14px; color:var(--text-muted); font-style:italic; margin-bottom:10px; }
.line-content img { max-width:100%; border-radius:var(--radius); margin:8px 0; }
.line-content table { border-collapse:collapse; width:100%; margin-bottom:10px; display:block; overflow-x:auto; }
.line-content td,.line-content th { border:1px solid var(--border); padding:7px 10px; font-size:.85rem; white-space:nowrap; }

/* ── Commentaires ────────────────────────────────────────── */
.comments-section { margin-top:24px; padding-top:20px; border-top:1px solid var(--border); }
.comments-title { font-size:.82rem; font-weight:600; color:var(--text-muted); text-transform:uppercase; letter-spacing:.08em; margin-bottom:16px; }
.comment { display:flex; gap:12px; margin-bottom:16px; }
.comment-avatar { flex-shrink:0; }
.comment-body  { flex:1; min-width:0; }
.comment-meta  { font-size:.75rem; color:var(--text-muted); margin-bottom:4px; }
.comment-meta strong { color:var(--text); }
.comment-text  { font-size:.875rem; line-height:1.6; word-break:break-word; }
.comment-form textarea { margin-bottom:8px; }

/* ── Responsive portrait mobile ──────────────────────────── */
@media (max-width:640px) {
    body { font-size:14px; }
    .container { padding:0 12px; }
    .site-header .container { height:auto; min-height:50px; padding:8px 12px; flex-wrap:wrap; }
    .site-nav { gap:10px; font-size:.78rem; }
    .site-main { padding:20px 0 48px; }
    .auth-box  { padding:24px 16px; }
    .auth-page { padding:24px 12px; }
    .line-header { padding:13px 14px; }
    .line-body   { padding:0 14px 16px; }
    .line-header h3 { font-size:.9rem; }
    .project-meta { font-size:.75rem; gap:6px; }
    .project-hero h1 { font-size:1.4rem; }
    .lines-actions { gap:6px; }
    .lines-actions .btn { font-size:.75rem; padding:6px 10px; }
    .comment { gap:8px; }
}

/* ── Responsive paysage mobile ───────────────────────────── */
@media (max-height:500px) and (orientation:landscape) {
    .auth-page { align-items:flex-start; padding:16px 12px; }
    .site-header .container { height:44px; }
    .site-main { padding:16px 0 32px; }
}