/* ============================================================
   styles.css — Instituto CEAN · Sistema de Asistencia QR
   Optimizado para móvil, tablet y escritorio
   ============================================================ */

:root {
    --cream:  #fdf8f0;
    --white:  #ffffff;
    --sand:   #f0e9dc;
    --sand2:  #e5dace;
    --navy:   #1b2e4a;
    --navyL:  #2d4a73;
    --blue:   #3b6cb4;
    --blueS:  #e8f0fb;
    --blueG:  #d0e2f7;
    --green:  #2a8f6a;
    --greenS: #dff5ec;
    --greenL: #6ee7b7;
    --red:    #c9463d;
    --redS:   #fce8e6;
    --amber:  #c68a1d;
    --amberS: #fdf3dc;
    --txt:    #2c2c2c;
    --txt2:   #5a6472;
    --txt3:   #8c95a3;
    --brd:    #e4ddd3;
    --r:      14px;
    --rs:     10px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.05);
    --shadow-md: 0 4px 14px rgba(0,0,0,.10);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.15);
    --transition: 0.22s cubic-bezier(.4,0,.2,1);

    /* Alturas fijas para el layout */
    --header-h: 56px;
    --nav-h:    54px;
}

/* ── RESET ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    /* Evitar zoom accidental en iOS */
    touch-action: manipulation;
}
body {
    font-family: 'Outfit', sans-serif;
    background: var(--cream);
    color: var(--txt);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    /* Soporte para barra de estado en PWA */
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width:5px; height:5px; }
::-webkit-scrollbar-track { background:var(--sand); }
::-webkit-scrollbar-thumb { background:var(--sand2); border-radius:4px; }

/* ══════════════════════════════════════════════════════════════
   PANTALLA DE LOGIN
══════════════════════════════════════════════════════════════ */
.login-screen {
    position: fixed; inset: 0; z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0d1b2a 0%, #1a2e4a 50%, #142338 100%);
    padding: 20px;
    min-height: 100dvh;
}
.login-card {
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(212,168,67,.25);
    border-radius: 24px;
    padding: 44px 36px;
    width: 100%; max-width: 420px;
    text-align: center;
    box-shadow: 0 24px 80px rgba(0,0,0,.5);
    backdrop-filter: blur(16px);
}
.login-logo {
    width: 80px; height: 80px;
    background: rgba(212,168,67,.12);
    border: 2px solid rgba(212,168,67,.3);
    border-radius: 22px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
}
.login-title {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 30px; font-weight: 700;
    color: #fff; margin: 0 0 4px;
    letter-spacing: 1px;
}
.login-subtitle {
    font-size: 12px; color: #d4a843;
    letter-spacing: 2.5px; text-transform: uppercase;
    margin: 0 0 14px;
}
.login-desc {
    font-size: 15px; color: rgba(255,255,255,.5);
    line-height: 1.6; margin: 0 0 32px;
}
.login-btn {
    display: flex; align-items: center; justify-content: center;
    gap: 10px; width: 100%; padding: 16px 20px;
    background: #fff; color: #1a1a1a;
    border: none; border-radius: 14px;
    font-size: 16px; font-weight: 700;
    cursor: pointer; transition: all .2s;
    box-shadow: 0 4px 20px rgba(0,0,0,.3);
    -webkit-tap-highlight-color: transparent;
}
.login-btn:hover  { background:#f0f0f0; transform:translateY(-2px); box-shadow:0 8px 28px rgba(0,0,0,.4); }
.login-btn:active { transform:translateY(0); }
.login-loading {
    display: flex; align-items: center; justify-content: center;
    gap: 12px; color: rgba(255,255,255,.6);
    font-size: 15px; padding: 16px 0;
}
.login-spinner {
    width: 22px; height: 22px;
    border: 2.5px solid rgba(255,255,255,.2);
    border-top-color: #d4a843;
    border-radius: 50%;
    animation: spin .7s linear infinite;
    flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.login-error {
    margin-top: 16px; padding: 14px 16px;
    background: rgba(201,70,61,.18);
    border: 1px solid rgba(201,70,61,.45);
    border-radius: 12px;
    color: #ff8a82; font-size: 14px; line-height: 1.5;
}

/* ══════════════════════════════════════════════════════════════
   HEADER
══════════════════════════════════════════════════════════════ */
.header {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navyL) 60%, #2a4880 100%);
    padding: 0 16px;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 200;
    box-shadow: 0 2px 16px rgba(27,46,74,.35);
    gap: 10px;
}
.logo { display:flex; align-items:center; gap:10px; flex-shrink:0; }
.logo-icon {
    width:36px; height:36px;
    background: rgba(255,255,255,.12);
    border: 1.5px solid rgba(255,255,255,.22);
    border-radius: 10px;
    display: flex; align-items:center; justify-content:center;
    color: #fff; flex-shrink:0;
}
.logo h1 { font-family:'Crimson Pro',serif; font-size:17px; color:#fff; line-height:1.1; white-space:nowrap; }
.logo small { font-size:9px; color:rgba(255,255,255,.5); letter-spacing:1.5px; text-transform:uppercase; display:block; }
.header-right { display:flex; align-items:center; gap:7px; flex-shrink:0; }

/* Chip */
.chip { font-size:10px; font-weight:600; padding:4px 9px; border-radius:20px; display:flex; align-items:center; gap:4px; white-space:nowrap; }
.chip-g   { background:rgba(255,255,255,.1); color:rgba(255,255,255,.8); }
.chip-ok  { background:rgba(42,143,106,.3);  color:#6ee7b7; }
.chip-err { background:rgba(201,70,61,.3);   color:#fca5a5; }

/* Badge usuario */
.user-badge {
    display:flex; align-items:center; gap:6px;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 20px;
    padding: 3px 10px 3px 4px;
}
.user-avatar {
    width:28px; height:28px; border-radius:50%;
    background: linear-gradient(135deg,var(--blue),var(--navyL));
    color:#fff; font-size:12px; font-weight:700;
    display:flex; align-items:center; justify-content:center;
    flex-shrink:0;
}
#userEmail { font-size:11px; color:rgba(255,255,255,.9); font-weight:500; max-width:100px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.role-tag { padding:2px 8px; border-radius:12px; font-size:9px; font-weight:700; text-transform:uppercase; letter-spacing:.5px; white-space:nowrap; }
.role-ADMIN    { background:rgba(124,58,237,.2); color:#a78bfa; }
.role-REGISTRO { background:var(--blueS);  color:var(--blue); }
.role-SCANNER  { background:var(--greenS); color:var(--green); }
.role-VIEWER   { background:var(--amberS); color:var(--amber); }

/* Botón salir */
.btn-auth-out {
    padding: 7px 13px;
    background: rgba(255,255,255,.1);
    color: rgba(255,255,255,.85);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 8px;
    font-family:'Outfit',sans-serif; font-size:12px; font-weight:700;
    cursor:pointer; transition:all var(--transition);
    white-space:nowrap;
}
.btn-auth-out:hover { background:rgba(201,70,61,.3); color:#fca5a5; }

/* ══════════════════════════════════════════════════════════════
   NAVEGACIÓN — bottom nav en móvil, top en desktop
══════════════════════════════════════════════════════════════ */
.nav {
    display: flex;
    gap: 2px;
    padding: 6px 12px;
    background: var(--white);
    border-bottom: 1px solid var(--brd);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    position: sticky;
    top: var(--header-h);
    z-index: 150;
    box-shadow: 0 2px 8px rgba(0,0,0,.06);
}
.nav::-webkit-scrollbar { display:none; }
.nav-btn {
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--txt2);
    font-family:'Outfit',sans-serif; font-size:13px; font-weight:600;
    border-radius: var(--rs);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    display: flex; align-items:center; gap:6px;
    position: relative;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
}
.nav-btn:hover  { background:var(--sand); color:var(--txt); }
.nav-btn.active { background:var(--blueS); color:var(--blue); }
.nav-btn.active::after {
    content:''; position:absolute; bottom:0; left:20%; right:20%;
    height:2.5px; background:var(--blue); border-radius:2px 2px 0 0;
}

/* ══════════════════════════════════════════════════════════════
   MAIN / PANELS
══════════════════════════════════════════════════════════════ */
.main {
    padding: 14px 16px;
    max-width: 860px;
    margin: 0 auto;
    /* Espacio para la barra inferior en iOS */
    padding-bottom: calc(14px + env(safe-area-inset-bottom));
}
.panel { display:none; animation:panelIn .28s cubic-bezier(.4,0,.2,1); }
.panel.active { display:block; }
@keyframes panelIn { from{opacity:0;transform:translateY(8px);} to{opacity:1;transform:translateY(0);} }
@keyframes fadeIn  { from{opacity:0;transform:translateY(4px);} to{opacity:1;transform:translateY(0);} }

/* ══════════════════════════════════════════════════════════════
   CARDS
══════════════════════════════════════════════════════════════ */
.card {
    background: var(--white);
    border: 1px solid var(--brd);
    border-radius: var(--r);
    padding: 18px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
}
.card-title {
    font-family: 'Crimson Pro',serif;
    font-size: 17px; font-weight: 700;
    margin-bottom: 16px; padding-bottom: 12px;
    border-bottom: 1px solid var(--brd);
    display: flex; align-items:center; gap:8px;
    color: var(--navy);
}

/* ══════════════════════════════════════════════════════════════
   FORMULARIOS
══════════════════════════════════════════════════════════════ */
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.form-grid .full { grid-column:1/-1; }
.field { display:flex; flex-direction:column; gap:5px; }
.field label {
    font-size:12px; font-weight:700;
    color: var(--txt2); text-transform:uppercase; letter-spacing:.4px;
}
.field input, .field select {
    padding: 13px 14px;
    background: var(--sand);
    border: 2px solid transparent;
    border-radius: var(--rs);
    color: var(--txt);
    font-family:'Outfit',sans-serif; font-size:15px;
    outline: none;
    transition: all var(--transition);
    width: 100%;
    /* Evitar zoom en iOS al enfocar */
    font-size: max(16px, 1em);
}
.field input:focus, .field select:focus {
    border-color: var(--blue);
    background: #fff;
    box-shadow: 0 0 0 4px var(--blueG);
}
.field input::placeholder { color:var(--txt3); }

/* Foto */
.photo-row { display:flex; align-items:center; gap:14px; flex-wrap:wrap; }
.photo-circle {
    width: 72px; height:72px; border-radius:50%;
    background: var(--sand); border:2px dashed var(--brd);
    display:flex; align-items:center; justify-content:center;
    overflow:hidden; cursor:pointer; flex-shrink:0;
    transition:all var(--transition);
}
.photo-circle:hover { border-color:var(--blue); transform:scale(1.05); }
.photo-circle img { width:100%; height:100%; object-fit:cover; }

/* ══════════════════════════════════════════════════════════════
   BOTONES
══════════════════════════════════════════════════════════════ */
.btn {
    padding: 12px 20px;
    border: none; border-radius: var(--rs);
    font-family:'Outfit',sans-serif; font-size:14px; font-weight:700;
    cursor: pointer; transition: all var(--transition);
    display: inline-flex; align-items:center; justify-content:center; gap:7px;
    position: relative; overflow:hidden;
    -webkit-tap-highlight-color: transparent;
    /* Área táctil mínima recomendada */
    min-height: 44px;
}
.btn:hover  { transform:translateY(-2px); box-shadow:0 6px 16px rgba(0,0,0,.15); }
.btn:active { transform:translateY(0); box-shadow:none; opacity:.9; }

.btn-blue  { background:var(--blue);  color:#fff; }
.btn-blue:hover  { background:#2d5da0; }
.btn-green { background:var(--green); color:#fff; }
.btn-green:hover { background:#208055; }
.btn-ghost { background:var(--sand);  color:var(--txt2); }
.btn-ghost:hover { background:var(--sand2); }
.btn-red   { background:var(--redS);  color:var(--red); }
.btn-red:hover   { background:#f8d4d0; }
.btn-sm    { padding:9px 14px; font-size:13px; min-height:38px; }
.btn-xs    { padding:6px 12px; font-size:12px; min-height:34px; }
.btn-block { width:100%; padding:15px; font-size:16px; }

/* ══════════════════════════════════════════════════════════════
   QR
══════════════════════════════════════════════════════════════ */
.qr-container {
    margin-top:16px;
    display:flex; justify-content:center;
    padding:20px; background:var(--sand);
    border-radius:var(--r); min-height:20px;
}
.qr-container canvas { display:block!important; margin:0 auto; border-radius:8px; }
.qr-container img { display:none!important; }
.qr-actions { margin-top:12px; display:none; gap:8px; justify-content:center; flex-wrap:wrap; }
.qr-actions.visible { display:flex; }
.qr-status { text-align:center; margin-top:10px; font-size:13px; font-weight:600; color:var(--green); }

/* ══════════════════════════════════════════════════════════════
   TABLAS — scroll horizontal en móvil
══════════════════════════════════════════════════════════════ */
.table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; border-radius:var(--rs); }
table { width:100%; border-collapse:collapse; }
th {
    text-align:left; padding:12px 14px;
    font-size:11px; text-transform:uppercase; letter-spacing:.6px;
    color:var(--txt3); font-weight:700;
    border-bottom:2px solid var(--brd);
    background:var(--sand); white-space:nowrap;
}
td { padding:14px 14px; font-size:14px; border-bottom:1px solid var(--brd); vertical-align:middle; }
tr:hover td { background:#faf7f2; }
tbody tr:last-child td { border-bottom:none; }

.cell-name { display:flex; align-items:center; gap:10px; }
.avatar {
    width: 40px; height:40px; border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    font-weight:700; font-size:14px; color:#fff;
    overflow:hidden; flex-shrink:0;
}
.avatar img { width:100%; height:100%; object-fit:cover; }

/* Tags */
.tag { padding:5px 12px; border-radius:20px; font-size:11px; font-weight:700; display:inline-block; white-space:nowrap; }
.tag-ok   { background:var(--greenS); color:var(--green); }
.tag-no   { background:var(--redS);   color:var(--red); }
.tag-warn { background:var(--amberS); color:var(--amber); }

.course-badge {
    display:inline-block; background:var(--blueS); color:var(--blue);
    border-radius:8px; padding:5px 10px; font-size:12px; font-weight:600;
    max-width:180px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.schedule-chip {
    display:inline-block; background:var(--sand); color:var(--txt2);
    border-radius:6px; padding:4px 9px; font-size:11px;
    max-width:170px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.reg-by { font-size:11px; color:var(--txt3); background:var(--sand); padding:3px 8px; border-radius:6px; }

/* ── Responsive table → cards en móvil ── */
@media (max-width: 700px) {
    #panel-students table thead { display:none; }
    #panel-students table,
    #panel-students table tbody,
    #panel-students table tr,
    #panel-students table td {
        display:block; width:100%;
    }
    #panel-students table tr {
        background:var(--white);
        border:1px solid var(--brd);
        border-radius:14px;
        margin-bottom:10px;
        padding:14px 16px;
        box-shadow:var(--shadow-sm);
    }
    #panel-students table tr:hover td { background:transparent; }
    #panel-students table td {
        border:none; padding:4px 0;
        display:flex; align-items:center; justify-content:space-between;
        font-size:13px;
    }
    #panel-students table td:first-child {
        padding-bottom:10px; margin-bottom:8px;
        border-bottom:1px solid var(--brd);
    }
    #panel-students table td:first-child .cell-name { width:100%; }
    #panel-students table td:last-child {
        padding-top:8px; margin-top:4px;
        border-top:1px solid var(--brd);
        justify-content:flex-end;
    }
    #panel-students table td[data-label]::before {
        content: attr(data-label);
        font-size:11px; font-weight:700; color:var(--txt3);
        text-transform:uppercase; letter-spacing:.5px;
        min-width:65px;
    }
    .course-badge { max-width:none; }
    .schedule-chip { max-width:none; }
}

/* ══════════════════════════════════════════════════════════════
   ESCÁNER — fix para que la cámara funcione en móvil
══════════════════════════════════════════════════════════════ */
.scanner-wrapper {
    background: var(--sand);
    border-radius: var(--r);
    padding: 12px;
    margin-bottom: 14px;
}

/* Contenedor del escáner — ancho completo en móvil */
#reader {
    width: 100% !important;
    max-width: 100% !important;
    border-radius: var(--r);
    overflow: hidden;
    background: #000;
}

/* Región de video — altura proporcional */
#reader__scan_region {
    width: 100% !important;
    border-radius: 10px;
    overflow: hidden;
}
#reader__scan_region video {
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 10px;
}
#reader__scan_region img {
    width: 100% !important;
    border-radius: 10px;
}

#reader__dashboard { padding:10px 4px 0; }
#reader__dashboard_section_csr > span { display:none !important; }

/* Botón INICIAR CÁMARA — grande y táctil */
#html5-qrcode-button-camera-start {
    background: var(--blue) !important;
    color: #fff !important;
    border: none !important;
    border-radius: var(--rs) !important;
    padding: 15px 20px !important;
    font-family: 'Outfit',sans-serif !important;
    font-size: 0 !important;          /* ocultar texto original */
    font-weight: 700 !important;
    cursor: pointer !important;
    width: 100% !important;
    min-height: 52px !important;
    margin-bottom: 10px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: all var(--transition) !important;
}
#html5-qrcode-button-camera-start::after {
    content: "📷  Iniciar Cámara";
    font-size: 16px;
    font-family: 'Outfit',sans-serif;
    font-weight: 700;
}
#html5-qrcode-button-camera-start:hover { background:#2d5da0 !important; transform:translateY(-1px) !important; }

/* Botón DETENER */
#html5-qrcode-button-camera-stop {
    background: var(--redS) !important;
    color: var(--red) !important;
    border: none !important;
    border-radius: var(--rs) !important;
    padding: 14px 20px !important;
    font-size: 0 !important;
    font-weight: 700 !important;
    cursor: pointer !important;
    width: 100% !important;
    min-height: 50px !important;
    margin-bottom: 8px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: all var(--transition) !important;
}
#html5-qrcode-button-camera-stop::after {
    content: "⏹  Detener Cámara";
    font-size: 15px;
    font-family: 'Outfit',sans-serif;
    font-weight: 700;
}

/* Botón PERMISOS CÁMARA */
#html5-qrcode-button-camera-permission {
    background: var(--greenS) !important;
    color: var(--green) !important;
    border: 2px solid var(--green) !important;
    border-radius: var(--rs) !important;
    padding: 14px 20px !important;
    font-size: 0 !important;
    cursor: pointer !important;
    width: 100% !important;
    min-height: 50px !important;
    margin-bottom: 8px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-weight: 700 !important;
    transition: all var(--transition) !important;
}
#html5-qrcode-button-camera-permission::after {
    content: "🔓  Permitir acceso a Cámara";
    font-size: 15px;
    font-family: 'Outfit',sans-serif;
    font-weight: 700;
}
#html5-qrcode-button-camera-permission:hover { background:var(--green) !important; color:#fff !important; }

/* Selector de cámara */
#html5-qrcode-select-camera {
    width: 100% !important;
    padding: 12px 14px !important;
    background: var(--sand) !important;
    border: 2px solid var(--brd) !important;
    border-radius: var(--rs) !important;
    font-family: 'Outfit',sans-serif !important;
    font-size: 15px !important;
    color: var(--txt) !important;
    margin-bottom: 10px !important;
    cursor: pointer !important;
    outline: none !important;
    min-height: 48px !important;
}

/* Link cambiar modo */
#html5-qrcode-anchor-scan-type-change {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 10px 16px !important;
    background: var(--sand) !important;
    color: var(--txt2) !important;
    border: 1.5px solid var(--brd) !important;
    border-radius: var(--rs) !important;
    font-family: 'Outfit',sans-serif !important;
    font-size: 0 !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    text-decoration: none !important;
    width: 100% !important;
    margin: 6px 0 !important;
    min-height: 46px !important;
    transition: all var(--transition) !important;
}
#html5-qrcode-anchor-scan-type-change::after {
    content: "🔄  Cambiar modo (cámara / imagen)";
    font-size: 13px;
    font-family: 'Outfit',sans-serif;
    font-weight: 600;
}
#html5-qrcode-anchor-scan-type-change:hover {
    background: var(--blueS) !important;
    border-color: var(--blue) !important;
    color: var(--blue) !important;
}

/* Botón seleccionar imagen */
#html5-qrcode-button-file-selection {
    background: var(--navy) !important;
    color: #fff !important;
    border: none !important;
    border-radius: var(--rs) !important;
    padding: 13px 20px !important;
    font-size: 0 !important;
    font-weight: 700 !important;
    cursor: pointer !important;
    width: 100% !important;
    min-height: 50px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    margin-bottom: 6px !important;
    transition: all var(--transition) !important;
}
#html5-qrcode-button-file-selection::after {
    content: "🖼️  Seleccionar Imagen QR";
    font-size: 15px;
    font-family: 'Outfit',sans-serif;
    font-weight: 700;
}
#html5-qrcode-button-file-selection:hover { background:var(--navyL) !important; }
#reader__filescan_input { display:none !important; }

/* Ocultar el texto de "No file chosen" y similares */
#reader__dashboard_section_fileselection > span { display:none !important; }

/* Modo entrada/salida */
.scan-mode-selector { display:flex; gap:10px; justify-content:center; margin-bottom:14px; }
.scan-mode-selector label {
    cursor:pointer; padding:13px 24px; border-radius:var(--rs);
    font-size:15px; font-weight:700;
    transition:all var(--transition);
    border:2px solid var(--brd); background:var(--white);
    display:flex; align-items:center; gap:7px;
    user-select:none; flex:1; justify-content:center;
    min-height:50px;
    -webkit-tap-highlight-color:transparent;
}
.scan-mode-selector input[type="radio"] { display:none; }
.mode-active-entrada { background:var(--greenS)!important; border-color:var(--green)!important; color:var(--green)!important; box-shadow:0 4px 14px rgba(42,143,106,.25)!important; }
.mode-active-salida  { background:var(--redS)!important;   border-color:var(--red)!important;   color:var(--red)!important;   box-shadow:0 4px 14px rgba(201,70,61,.25)!important; }

/* Feedback escaneo */
.scan-feedback {
    padding:18px; border-radius:var(--r); text-align:center;
    margin:12px 0 0; animation:feedbackIn .3s cubic-bezier(.34,1.56,.64,1);
}
.scan-feedback h4 { font-size:18px; margin-bottom:6px; font-weight:700; }
.scan-feedback p  { font-size:14px; opacity:.85; }
.scan-feedback.ok   { background:var(--greenS); border:2px solid var(--green); color:var(--green); }
.scan-feedback.bad  { background:var(--redS);   border:2px solid var(--red);   color:var(--red); }
.scan-feedback.warn { background:var(--amberS); border:2px solid var(--amber); color:var(--amber); }
@keyframes feedbackIn { from{opacity:0;transform:scale(.92);} to{opacity:1;transform:scale(1);} }

/* ══════════════════════════════════════════════════════════════
   STATS
══════════════════════════════════════════════════════════════ */
.stats-grid {
    display:grid;
    grid-template-columns: repeat(4,1fr);
    gap:10px; margin-bottom:14px;
}
.stat-card {
    background:var(--white); border:1px solid var(--brd);
    border-radius:var(--r); padding:16px;
    border-left:4px solid; transition:all var(--transition);
}
.stat-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); }
.stat-card.blue  { border-left-color:var(--blue); }
.stat-card.green { border-left-color:var(--green); }
.stat-card.amber { border-left-color:var(--amber); }
.stat-card.red   { border-left-color:var(--red); }
.stat-icon  { font-size:22px; margin-bottom:4px; }
.stat-label { font-size:11px; text-transform:uppercase; letter-spacing:.4px; color:var(--txt3); font-weight:600; }
.stat-value { font-family:'Crimson Pro',serif; font-size:32px; font-weight:700; line-height:1.1; }
.stat-card.blue  .stat-value { color:var(--blue); }
.stat-card.green .stat-value { color:var(--green); }
.stat-card.amber .stat-value { color:var(--amber); }
.stat-card.red   .stat-value { color:var(--red); }

/* ══════════════════════════════════════════════════════════════
   LISTAS
══════════════════════════════════════════════════════════════ */
.list-row {
    display:flex; align-items:center; justify-content:space-between;
    padding:12px 8px; border-bottom:1px solid var(--brd); gap:10px;
    transition:background var(--transition); border-radius:8px;
}
.list-row:last-child { border-bottom:none; }
.list-row:hover { background:var(--sand); }
.list-time { font-size:12px; font-weight:600; color:var(--txt2); background:var(--sand); padding:4px 9px; border-radius:6px; white-space:nowrap; }

/* ══════════════════════════════════════════════════════════════
   BÚSQUEDA
══════════════════════════════════════════════════════════════ */
.search-wrap { margin-bottom:12px; }
.search-box {
    width:100%; padding:13px 16px; border-radius:var(--rs);
    border:2px solid var(--brd); background:var(--white);
    font-family:'Outfit',sans-serif; font-size:max(16px,1em); color:var(--txt);
    outline:none; transition:all var(--transition);
    min-height:48px;
}
.search-box:focus { border-color:var(--blue); box-shadow:0 0 0 4px var(--blueG); }

/* ══════════════════════════════════════════════════════════════
   REPORTES
══════════════════════════════════════════════════════════════ */
.report-filters {
    display:flex; flex-wrap:wrap; gap:10px;
    margin-bottom:14px; align-items:flex-end;
}
.report-filters .field { flex:1; min-width:130px; }
.btn-field { justify-content:flex-end; min-width:auto!important; flex:0 0 auto!important; }

/* ══════════════════════════════════════════════════════════════
   PERMISOS
══════════════════════════════════════════════════════════════ */
.perm-legend { margin-top:14px; display:flex; flex-direction:column; gap:8px; padding:14px; background:var(--sand); border-radius:var(--rs); }
.perm-legend-item { display:flex; align-items:center; gap:10px; font-size:13px; color:var(--txt2); }

/* ══════════════════════════════════════════════════════════════
   MODAL
══════════════════════════════════════════════════════════════ */
.overlay {
    display:none; position:fixed; inset:0;
    background:rgba(10,15,20,.72); backdrop-filter:blur(10px);
    z-index:500; align-items:center; justify-content:center; padding:16px;
}
.overlay.open { display:flex; animation:overlayIn .2s ease; }
@keyframes overlayIn { from{opacity:0;} to{opacity:1;} }
/* legacy .modal kept for safety */
.modal {
    background:var(--white); border-radius:20px; padding:28px;
    text-align:center; max-width:380px; width:100%;
    box-shadow:0 24px 60px rgba(0,0,0,.25);
    animation:modalIn .25s cubic-bezier(.34,1.56,.64,1);
}
@keyframes modalIn { from{opacity:0;transform:scale(.88);} to{opacity:1;transform:scale(1);} }
.modal h3 { font-family:'Crimson Pro',serif; font-size:22px; margin-bottom:4px; }
.modal .modal-sub { font-size:13px; color:var(--txt2); margin-bottom:16px; }
.modal .qr-wrap canvas { display:block!important; margin:0 auto; border-radius:8px; }
.modal .qr-wrap img { display:none!important; }
.modal-btns { margin-top:16px; display:flex; gap:10px; justify-content:center; flex-wrap:wrap; }

/* ══════════════════════════════════════════════════════════════
   TOASTS
══════════════════════════════════════════════════════════════ */
.toast-container {
    position:fixed; bottom:20px; right:16px;
    z-index:1500; pointer-events:none;
    display:flex; flex-direction:column-reverse;
    align-items:flex-end; gap:8px; max-width:320px;
}
.toast {
    background:var(--white); border-radius:16px;
    padding:14px 18px; text-align:left;
    box-shadow:0 8px 28px rgba(0,0,0,.18);
    pointer-events:auto;
    animation:toastIn .3s cubic-bezier(.34,1.56,.64,1);
    display:flex; gap:10px; align-items:flex-start;
    min-width:240px;
}
.toast-out { animation:toastOut .3s ease forwards; }
.toast-icon { font-size:22px; flex-shrink:0; }
.toast h4 { font-size:14px; font-weight:700; margin-bottom:2px; }
.toast p  { font-size:12px; color:var(--txt2); line-height:1.4; }
.toast.ok   { border-left:4px solid var(--green); }
.toast.bad  { border-left:4px solid var(--red); }
.toast.warn { border-left:4px solid var(--amber); }
.toast.info { border-left:4px solid var(--blue); }
@keyframes toastIn  { from{opacity:0;transform:translateX(20px) scale(.95);} to{opacity:1;transform:translateX(0) scale(1);} }
@keyframes toastOut { from{opacity:1;} to{opacity:0;transform:translateX(20px);} }

/* ══════════════════════════════════════════════════════════════
   NOTIFICACIÓN EMERGENTE DE ESCANEO
══════════════════════════════════════════════════════════════ */
.scan-notification {
    display:none; position:fixed; inset:0; z-index:2000;
    background:rgba(15,30,51,.7);
    backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
    align-items:center; justify-content:center; padding:20px;
    cursor:pointer;
}
.scan-notification.visible { display:flex; animation:notifOverlay .22s ease; }
.scan-notification.notif-hiding { animation:notifOverlayOut .3s ease forwards; }
@keyframes notifOverlay    { from{opacity:0;} to{opacity:1;} }
@keyframes notifOverlayOut { from{opacity:1;} to{opacity:0;} }

.scan-notif-inner {
    background:#fff; border-radius:28px;
    padding:40px 44px; text-align:center;
    max-width:460px; width:100%;
    box-shadow:0 30px 80px rgba(0,0,0,.35);
    animation:notifCardIn .35s cubic-bezier(.16,1,.3,1);
    position:relative; overflow:hidden;
}
.scan-notification.notif-ok   .scan-notif-inner { border-top:6px solid var(--green); }
.scan-notification.notif-warn .scan-notif-inner { border-top:6px solid var(--amber); }
.scan-notification.notif-bad  .scan-notif-inner { border-top:6px solid var(--red); }
@keyframes notifCardIn { from{opacity:0;transform:scale(.7) translateY(40px);} to{opacity:1;transform:scale(1) translateY(0);} }

.scan-notif-icon   { font-size:80px; line-height:1; margin-bottom:16px; display:block; animation:notifIconPop .45s cubic-bezier(.34,1.56,.64,1) .1s both; }
@keyframes notifIconPop { from{transform:scale(0) rotate(-20deg);} to{transform:scale(1) rotate(0deg);} }
.scan-notif-name   { font-family:'Crimson Pro',serif; font-size:36px; font-weight:700; color:var(--txt); margin-bottom:10px; line-height:1.2; }
.scan-notif-detail { font-size:20px; font-weight:700; margin-bottom:10px; }
.scan-notification.notif-ok   .scan-notif-detail { color:var(--green); }
.scan-notification.notif-warn .scan-notif-detail { color:var(--amber); }
.scan-notification.notif-bad  .scan-notif-detail { color:var(--red); }
.scan-notif-course { font-size:14px; color:var(--txt2); background:var(--sand); display:inline-block; padding:6px 18px; border-radius:20px; margin-bottom:8px; font-weight:600; }
.scan-notif-extra  { font-size:12px; color:var(--txt3); margin-bottom:16px; min-height:4px; }
.scan-notif-hint   { font-size:12px; color:var(--txt3); text-transform:uppercase; letter-spacing:1px; }

.scan-notif-inner::after {
    content:''; position:absolute; bottom:0; left:0;
    height:5px; width:100%; animation:countdown 4.5s linear;
}
.scan-notification.notif-ok   .scan-notif-inner::after { background:var(--green); }
.scan-notification.notif-warn .scan-notif-inner::after { background:var(--amber); }
.scan-notification.notif-bad  .scan-notif-inner::after { background:var(--red); }
@keyframes countdown { from{width:100%;} to{width:0;} }

/* ══════════════════════════════════════════════════════════════
   MISC
══════════════════════════════════════════════════════════════ */
.empty-msg { text-align:center; padding:28px 16px; color:var(--txt3); font-size:14px; }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — TABLET (≤768px)
══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    :root { --header-h: 52px; --nav-h: 50px; }

    .header { padding:0 14px; }
    .logo h1 { font-size:15px; }
    .logo small { font-size:8px; }

    .main { padding:12px; }
    .card { padding:16px; }

    .stats-grid { grid-template-columns:repeat(2,1fr); gap:10px; }

    .form-grid { grid-template-columns:1fr; }

    .report-filters { flex-direction:column; }
    .report-filters .field { min-width:100%; }

    #userEmail { max-width:80px; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — MÓVIL (≤480px) — diseño de app nativa
══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
    :root { --header-h: 50px; }

    /* Header compacto */
    .header { padding:0 12px; gap:8px; }
    .logo-icon { width:32px; height:32px; }
    .logo h1 { font-size:14px; }
    .logo small { display:none; }
    .chip { font-size:10px; padding:3px 8px; }
    #userEmail, #userRole { display:none; }
    .user-badge { padding:3px 8px 3px 4px; }

    /* Nav con scroll */
    .nav { padding:5px 10px; top:var(--header-h); }
    .nav-btn { padding:9px 12px; font-size:12px; gap:4px; }

    /* Main */
    .main { padding:10px; }
    .card { padding:14px; border-radius:14px; margin-bottom:10px; }
    .card-title { font-size:16px; margin-bottom:12px; padding-bottom:10px; }

    /* Formularios — inputs GRANDES para touch */
    .field label { font-size:12px; }
    .field input, .field select {
        padding: 15px 14px;
        font-size: 16px;
        border-radius: 12px;
        min-height: 52px;
    }

    /* Botones grandes */
    .btn        { padding:14px 18px; font-size:15px; min-height:50px; }
    .btn-sm     { padding:12px 16px; font-size:14px; min-height:46px; }
    .btn-xs     { padding:9px 14px;  font-size:13px; min-height:40px; }
    .btn-block  { padding:17px; font-size:17px; min-height:56px; }

    /* Stats 2 columnas */
    .stats-grid { grid-template-columns:1fr 1fr; gap:8px; }
    .stat-card  { padding:14px; }
    .stat-icon  { font-size:20px; }
    .stat-value { font-size:30px; }
    .stat-label { font-size:10px; }

    /* Tabla */
    td { padding:11px 10px; font-size:13px; }
    th { padding:9px 10px; font-size:10px; }
    .avatar { width:34px; height:34px; font-size:12px; }

    /* Escáner */
    .scan-mode-selector { gap:8px; }
    .scan-mode-selector label { padding:12px 16px; font-size:14px; min-height:48px; }

    /* Notificación emergente */
    .scan-notif-inner  { padding:32px 24px; border-radius:22px; }
    .scan-notif-icon   { font-size:70px; }
    .scan-notif-name   { font-size:28px; }
    .scan-notif-detail { font-size:18px; }
    .scan-notif-course { font-size:13px; }

    /* Toasts abajo al centro */
    .toast-container { right:10px; left:10px; max-width:100%; align-items:stretch; }
    .toast { min-width:0; border-radius:14px; }

    /* Modal full-ish */
    .modal { padding:22px 18px; border-radius:18px; }
    .modal h3 { font-size:20px; }

    /* Search */
    .search-box { font-size:16px; padding:14px 16px; min-height:52px; }

    /* Permisos */
    .perm-legend-item { font-size:12px; }

    /* Botón salir pequeño */
    .btn-auth-out { padding:7px 10px; font-size:11px; }

    /* Login */
    .login-card { padding:36px 22px; }
    .login-title { font-size:26px; }
    .login-desc { font-size:14px; }
    .login-btn { font-size:15px; padding:16px; }
}

/* ══════════════════════════════════════════════════════════════
   DESKTOP GRANDE (≥1100px)
══════════════════════════════════════════════════════════════ */
@media (min-width: 1100px) {
    .main { max-width:940px; }
    .stats-grid { grid-template-columns:repeat(4,1fr); }
}

/* Reducir movimiento */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration:.01ms!important; transition-duration:.01ms!important; }
}

/* ── ANIMACIÓN ENTRADA NUEVA FILA (tiempo real sin parpadeo) ── */
@keyframes rowSlideIn {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}
.list-row, tr {
    animation: rowSlideIn 0.18s ease both;
}
/* Evitar re-animación en actualizaciones */
.list-row:not(:first-child), tr:not(:first-child) {
    animation: none;
}

/* ── SPINNER CÁMARA ─────────────────────────────────────────── */
.cam-checking {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 32px;
    color: rgba(255,255,255,.65);
    font-size: 14px;
}
.cam-spinner {
    width: 32px; height: 32px;
    border: 3px solid rgba(255,255,255,.15);
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

/* ══════════════════════════════════════════════════════════════
   CARNET 3D MODAL
══════════════════════════════════════════════════════════════ */

/* Modal container */
.carnet-modal {
    background: #111;
    border-radius: 24px;
    padding: 24px 20px 20px;
    width: min(400px, 100%);
    max-height: 96vh;
    overflow-y: auto;
    box-shadow: 0 32px 80px rgba(0,0,0,.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    animation: modalIn .28s cubic-bezier(.34,1.56,.64,1);
}
.carnet-modal::-webkit-scrollbar { width:0; }

/* Header */
.carnet-modal-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.carnet-modal-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: rgba(255,255,255,.7);
    letter-spacing: .3px;
}
.carnet-close-btn {
    background: rgba(255,255,255,.08);
    border: none;
    color: rgba(255,255,255,.5);
    width: 30px; height: 30px;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: background .15s, color .15s;
}
.carnet-close-btn:hover { background: rgba(255,255,255,.15); color: white; }

/* 3D Scene */
.carnet-scene {
    perspective: 900px;
    width: 280px;
    height: 445px;
}
.carnet-wrap {
    width: 100%;
    height: 100%;
    cursor: pointer;
    position: relative;
}
.carnet-inner {
    width: 100%;
    height: 100%;
    position: relative;
    transition: transform 0.72s cubic-bezier(.4,0,.2,1);
    transform-style: preserve-3d;
}
.carnet-inner.flipped { transform: rotateY(180deg); }

/* Faces */
.carnet-face {
    position: absolute;
    inset: 0;
    border-radius: 16px;
    overflow: hidden;
    backface-visibility: hidden;
    box-shadow:
        0 4px 8px rgba(0,0,0,.35),
        0 16px 40px rgba(0,0,0,.5);
}

/* ── FRENTE ── */
.carnet-front {
    background: #1b3a2d;
    display: flex;
    flex-direction: column;
}
.carnet-front::after {
    content:'';
    position:absolute; inset:0;
    background-image:
        radial-gradient(circle at 80% 10%, rgba(200,169,110,.07) 0%, transparent 50%),
        radial-gradient(circle at 10% 90%, rgba(200,169,110,.04) 0%, transparent 40%);
    pointer-events:none; border-radius:16px;
}

/* corners */
.cn-corner { position:absolute; width:14px; height:14px; opacity:.25; }
.cn-corner-tl { top:10px; left:10px; border-top:1.5px solid #c8a96e; border-left:1.5px solid #c8a96e; }
.cn-corner-tr { top:10px; right:10px; border-top:1.5px solid #c8a96e; border-right:1.5px solid #c8a96e; }
.cn-corner-bl { bottom:10px; left:10px; border-bottom:1.5px solid #c8a96e; border-left:1.5px solid #c8a96e; }
.cn-corner-br { bottom:10px; right:10px; border-bottom:1.5px solid #c8a96e; border-right:1.5px solid #c8a96e; }

/* header strip */
.cn-header {
    padding: 18px 18px 14px;
    background: linear-gradient(160deg, #0f2a1e 0%, #1b3a2d 100%);
    border-bottom: 1px solid rgba(200,169,110,.2);
    position: relative;
    overflow: hidden;
}
.cn-header::before {
    content:''; position:absolute; top:-30px; right:-30px;
    width:110px; height:110px; border-radius:50%;
    background: radial-gradient(circle, rgba(200,169,110,.12) 0%, transparent 70%);
}
.cn-org-row { display:flex; align-items:center; gap:10px; }
.cn-logo {
    width:32px; height:32px;
    background: #c8a96e;
    border-radius:7px;
    display:grid; place-items:center; flex-shrink:0;
}
.cn-org-name {
    font-family: 'Playfair Display', 'Crimson Pro', serif;
    font-size: 13px; font-weight: 700; color: #fff; line-height:1;
}
.cn-org-sub {
    font-size: 8px; font-weight: 500; color: #c8a96e;
    letter-spacing: 1.5px; text-transform:uppercase; margin-top:3px;
}

/* photo */
.cn-photo-section {
    display:flex; flex-direction:column; align-items:center;
    padding: 20px 18px 14px;
}
.cn-photo-ring {
    width: 92px; height: 92px;
    border-radius: 50%; padding: 3px;
    background: linear-gradient(135deg, #c8a96e, #e0c48a, #c8a96e);
    box-shadow: 0 6px 24px rgba(0,0,0,.4), 0 0 0 1px rgba(200,169,110,.15);
    position: relative;
}
.cn-photo-inner {
    width:100%; height:100%; border-radius:50%;
    background: linear-gradient(135deg, #1f4535, #152e25);
    overflow:hidden; display:grid; place-items:center;
}
.cn-photo-inner img { width:100%; height:100%; object-fit:cover; object-position:center top; display:block; border-radius:50%; }
.cn-photo-placeholder {
    font-family: 'Playfair Display','Crimson Pro',serif;
    font-size: 28px; color: rgba(200,169,110,.5); font-weight:700;
}
.cn-photo-badge {
    position:absolute; bottom:-4px; right:-4px;
    width:22px; height:22px; background:#c8a96e;
    border-radius:50%; display:grid; place-items:center;
    box-shadow:0 2px 6px rgba(0,0,0,.4);
    border:2px solid #1a3328;
}
.cn-name-block { margin-top:14px; text-align:center; }
.cn-role {
    font-size:8px; font-weight:600; letter-spacing:3px;
    color:#c8a96e; text-transform:uppercase; margin-bottom:4px;
}
.cn-name {
    font-family:'Playfair Display','Crimson Pro',serif;
    font-size:18px; font-weight:700; color:#fff; letter-spacing:-.2px; line-height:1.1;
}
.cn-dept { margin-top:4px; font-size:10px; color:rgba(255,255,255,.4); }

/* divider */
.cn-divider {
    margin: 12px 18px;
    height:1px;
    background: linear-gradient(90deg, transparent, rgba(200,169,110,.3), transparent);
}

/* info grid */
.cn-info-grid {
    display:grid; grid-template-columns:1fr 1fr;
    gap:10px 0; padding:0 18px 14px;
}
.cn-info-cell { display:flex; flex-direction:column; gap:2px; }
.cn-full { grid-column:1/-1; }
.cn-info-label {
    font-size:7px; font-weight:600; letter-spacing:2px;
    color:rgba(200,169,110,.6); text-transform:uppercase;
}
.cn-info-value {
    font-family:'DM Mono','Outfit',monospace;
    font-size:12px; font-weight:500; color:#fff; letter-spacing:.3px;
}

/* footer */
.cn-footer {
    margin-top:auto;
    background: linear-gradient(90deg, rgba(200,169,110,.1), rgba(200,169,110,.04));
    border-top:1px solid rgba(200,169,110,.15);
    padding:10px 18px;
    display:flex; align-items:center; justify-content:space-between;
}
.cn-footer-url { font-size:9px; color:rgba(255,255,255,.3); letter-spacing:.4px; }
.cn-validity {
    background:rgba(46,122,86,.4); border:1px solid rgba(46,122,86,.6);
    color:#7ed4a3; font-size:8px; font-weight:600; letter-spacing:1px;
    text-transform:uppercase; padding:2px 8px; border-radius:20px;
}

/* ── DORSO ── */
.carnet-back {
    background: #f5f0e8;
    transform: rotateY(180deg);
    display:flex; flex-direction:column; align-items:center;
    position:relative; overflow:hidden;
}
.carnet-back::before {
    content:''; position:absolute; inset:0;
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23c8a96e' fill-opacity='0.05'%3E%3Cpath d='M0 0h1v1H0zm20 0h1v1h-1zm0 20h1v1h-1z'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events:none; border-radius:16px;
}
.cn-back-bar {
    width:100%; height:7px;
    background:linear-gradient(90deg, #1b3a2d, #2e7a56, #1b3a2d);
}
.cn-back-logo {
    padding:18px 18px 12px; text-align:center; width:100%;
    border-bottom:1px solid #e8e0d0;
}
.cn-back-org {
    font-family:'Playfair Display','Crimson Pro',serif;
    font-size:15px; font-weight:700; color:#1b3a2d; letter-spacing:-.2px;
}
.cn-back-tagline {
    font-size:8px; font-weight:500; letter-spacing:2px;
    color:#245c41; text-transform:uppercase; margin-top:2px;
}
.cn-back-id { padding:14px 18px 10px; width:100%; text-align:center; }
.cn-back-id-label {
    font-size:7px; font-weight:600; letter-spacing:2.5px;
    color:#245c41; text-transform:uppercase; margin-bottom:6px;
}
.cn-back-id-value {
    font-family:'DM Mono','Outfit',monospace;
    font-size:14px; font-weight:500; color:#1a1a1a; letter-spacing:2.5px;
    background:#e8e0d0; border-radius:7px; padding:6px 12px;
    display:inline-block; border:1px solid rgba(0,0,0,.08);
}
.cn-qr-wrap {
    padding:4px 18px 10px;
    display:flex; flex-direction:column; align-items:center; gap:8px;
}
.cn-qr-frame {
    width:120px; height:120px; background:#fff;
    border-radius:10px; padding:8px;
    box-shadow:0 4px 16px rgba(0,0,0,.1), 0 0 0 1px rgba(0,0,0,.06);
    display:grid; place-items:center;
}
.cn-qr-frame canvas { display:block; }
.cn-qr-caption {
    font-size:8px; font-weight:500; letter-spacing:1.2px;
    color:#5a5a5a; text-transform:uppercase;
}
.cn-back-footer {
    margin-top:auto; width:100%;
    background:#1b3a2d; padding:10px 18px;
    display:flex; align-items:center; justify-content:center;
}
.cn-back-url {
    font-size:9px; color:rgba(255,255,255,.5);
    letter-spacing:1px; font-family:'DM Mono','Outfit',monospace;
}

/* Hint y acciones */
.carnet-flip-hint {
    font-size:10px; color:rgba(255,255,255,.28);
    letter-spacing:.8px; text-align:center;
    animation: cnPulse 2.5s ease-in-out infinite;
}
@keyframes cnPulse { 0%,100%{opacity:.35} 50%{opacity:.8} }

.carnet-actions {
    display:flex; gap:8px; flex-wrap:wrap; justify-content:center; width:100%;
}