/* GlucoTrack — estilos. Paleta de marca: azul médico (#3485B2) + rojo sangre (#E53647). */
:root {
    --gt-blue: #3485B2;
    --gt-blue-dark: #1A2B3C;
    --gt-red: #E53647;
    --gt-bg: #F4F8FB;
    --gt-card: #FFFFFF;
    --gt-text: #1A2B3C;
    --gt-dim: #6B7D8C;
    --gt-ok: #2B9D6E;
    --gt-low: #E5A23C;
    --gt-high: var(--gt-red);
    --gt-border: #E3EBF1;
}
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

/* App nativa (WebView): ocultar hasta que el JS detecte plataforma
   (.ios/.android lo marca getDeviceInfo; .web es el fallback en navegador). */
body:not(.ios):not(.android):not(.web) { visibility: hidden; }
html, body {
    background: var(--gt-bg);
    color: var(--gt-text);
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    min-height: 100%;
}

/* Header */
.gt-header {
    position: sticky; top: 0; z-index: 20;
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px; padding-top: max(14px, env(safe-area-inset-top));
    background: var(--gt-card); border-bottom: 1px solid var(--gt-border);
}
.gt-brand { display: flex; align-items: center; gap: 10px; }
.gt-brand h1 { font-size: 19px; font-weight: 700; letter-spacing: -0.3px; }
.gt-logo { display: block; width: 28px; height: 28px; object-fit: contain; }
.gt-login-logo { display: block; width: 96px; height: 96px; object-fit: contain; filter: drop-shadow(0 6px 14px rgba(229,54,71,.18)); }
.gt-dot { width: 12px; height: 12px; border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--gt-red), #a3121f); box-shadow: 0 0 0 3px rgba(229,54,71,.15); }
.gt-icon-btn { border: 0; background: transparent; font-size: 20px; cursor: pointer; padding: 4px 8px; border-radius: 8px; }
.gt-icon-btn:active { background: var(--gt-bg); }

/* Banner de estado del puente */
.gt-banner { padding: 9px 18px; font-size: 13px; text-align: center; font-weight: 500; }
.gt-banner--wait { background: #FFF6E5; color: #9a6b00; }
.gt-banner--ok   { background: #E6F6EE; color: var(--gt-ok); }
.gt-banner--err  { background: #FDECEE; color: var(--gt-red); }

/* Layout */
.gt-main { max-width: 560px; margin: 0 auto; padding: 16px 14px 40px; display: flex; flex-direction: column; gap: 14px; }
.gt-card { background: var(--gt-card); border: 1px solid var(--gt-border); border-radius: 16px; padding: 18px; }
.gt-card h2 { font-size: 14px; text-transform: uppercase; letter-spacing: .5px; color: var(--gt-dim); margin-bottom: 14px; }
.gt-card h2 small { text-transform: none; letter-spacing: 0; }

/* Hero (última lectura) */
.gt-hero { text-align: center; background: linear-gradient(160deg, #fff, #F0F7FC); }
.gt-hero-value { font-size: 64px; font-weight: 800; line-height: 1; letter-spacing: -2px; color: var(--gt-blue-dark); }
.gt-hero-value .gt-unit { font-size: 18px; font-weight: 600; color: var(--gt-dim); margin-left: 6px; letter-spacing: 0; }
.gt-hero-meta { margin-top: 10px; font-size: 13px; color: var(--gt-dim); }

/* Formulario */
.gt-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.gt-field span { font-size: 13px; color: var(--gt-dim); font-weight: 500; }
.gt-field input, .gt-field select {
    border: 1.5px solid var(--gt-border); border-radius: 12px; padding: 13px 14px; font-size: 16px;
    background: #fff; color: var(--gt-text); outline: none; transition: border-color .15s;
}
.gt-field input:focus, .gt-field select:focus { border-color: var(--gt-blue); }
.gt-actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* Botones */
.gt-btn {
    flex: 1; min-width: 140px; border: 1.5px solid var(--gt-border); background: #fff; color: var(--gt-text);
    border-radius: 12px; padding: 13px 16px; font-size: 15px; font-weight: 600; cursor: pointer; transition: transform .05s;
}
.gt-btn:active { transform: scale(.98); }
.gt-btn--primary { background: var(--gt-blue); border-color: var(--gt-blue); color: #fff; }
.gt-btn--ble { background: var(--gt-red); border-color: var(--gt-red); color: #fff; flex-basis: 100%; }

/* Herramientas */
.gt-tools { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.gt-tool {
    display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: 22px;
    border: 1px solid var(--gt-border); background: #fff; border-radius: 14px; padding: 12px 4px; cursor: pointer;
}
.gt-tool span { font-size: 11px; color: var(--gt-dim); font-weight: 600; }
.gt-tool:active { background: var(--gt-bg); }

/* Historial */
.gt-history { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.gt-history-empty { color: var(--gt-dim); font-size: 14px; text-align: center; padding: 16px 0; }
.gt-history-item {
    display: flex; align-items: center; gap: 14px; padding: 12px 14px; border-radius: 12px;
    background: var(--gt-bg); border-left: 4px solid var(--gt-dim);
}
.gt-history-item[data-level="ok"]   { border-left-color: var(--gt-ok); }
.gt-history-item[data-level="low"]  { border-left-color: var(--gt-low); }
.gt-history-item[data-level="high"] { border-left-color: var(--gt-high); }
.gt-h-val { font-size: 22px; font-weight: 800; color: var(--gt-blue-dark); min-width: 48px; }
.gt-h-meta { font-size: 13px; color: var(--gt-dim); }

/* Consola debug — responsiva: ocupa todo el ancho y parte palabras largas
   (JSON, MAC/UUID) para no desbordar horizontalmente en el dispositivo. */
.gt-debug {
    box-sizing: border-box;
    width: 100%; max-width: 100%; align-self: stretch;
    margin: 0;
    background: #0E1A24; color: #7FE3B0;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 12px; line-height: 1.55;
    padding: 12px 14px; border-radius: 12px;
    max-height: 42vh; overflow-y: auto; -webkit-overflow-scrolling: touch;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
    -webkit-user-select: text; user-select: text;
}

/* Footer */
.gt-footer { text-align: center; padding: 18px; padding-bottom: max(18px, env(safe-area-inset-bottom)); color: var(--gt-dim); font-size: 12px; }

/* Pantalla de sincronización (mínima) */
.gt-sync { display: flex; flex-direction: column; align-items: center; gap: 22px; padding: 32px 6px; min-height: 60vh; justify-content: center; }
.gt-sync-hero { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.gt-sync-logo { filter: drop-shadow(0 8px 18px rgba(229,54,71,.18)); }
.gt-sync-hero h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.4px; color: var(--gt-blue-dark); }
#gt-sync-status { font-size: 14px; color: var(--gt-dim); max-width: 300px; line-height: 1.5; cursor: pointer; }
.gt-sync .gt-btn--ble { width: 100%; max-width: 340px; padding: 17px; font-size: 17px; border-radius: 16px; box-shadow: 0 12px 26px -12px rgba(229,54,71,.8); }
.gt-sync .gt-btn--ble:disabled { opacity: .6; }
.gt-devices { list-style: none; width: 100%; max-width: 340px; display: flex; flex-direction: column; gap: 10px; }
.gt-dev { display: flex; flex-direction: column; gap: 3px; padding: 14px 16px; border: 1.5px solid var(--gt-border); border-radius: 14px; background: #fff; cursor: pointer; transition: border-color .15s, transform .05s; }
.gt-dev:active { transform: scale(.99); border-color: var(--gt-blue); }
.gt-dev-name { font-size: 15px; font-weight: 700; color: var(--gt-blue-dark); }
.gt-dev-meta { font-size: 12px; color: var(--gt-dim); }

/* Login */
.gt-login-body {
    display: flex; min-height: 100vh; min-height: 100dvh;
    background:
        radial-gradient(120% 60% at 50% 0%, #E9F3FA 0%, rgba(233,243,250,0) 55%),
        radial-gradient(80% 50% at 50% 100%, rgba(229,54,71,.06) 0%, rgba(229,54,71,0) 60%),
        var(--gt-bg);
}
.gt-login {
    margin: auto; width: 100%; max-width: 380px;
    padding: calc(32px + env(safe-area-inset-top)) 22px calc(24px + env(safe-area-inset-bottom));
    display: flex; flex-direction: column; gap: 26px;
}
.gt-login-brand { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.gt-login-brand h1 { font-size: 27px; font-weight: 800; letter-spacing: -0.6px; color: var(--gt-blue-dark); }
.gt-login-brand p { color: var(--gt-dim); font-size: 14px; }
.gt-login-logo { margin-bottom: 6px; }

.gt-login-card {
    display: flex; flex-direction: column; gap: 14px;
    padding: 24px 20px; border-radius: 20px;
    box-shadow: 0 18px 40px -22px rgba(26,43,60,.35), 0 2px 8px -4px rgba(26,43,60,.12);
}
.gt-login-card .gt-field { margin-bottom: 0; }
.gt-login-card .gt-field input { padding: 15px 16px; font-size: 16px; border-radius: 14px; }
.gt-login-card .gt-btn { flex: none; width: 100%; padding: 15px; font-size: 16px; border-radius: 14px; margin-top: 2px; }
.gt-login-card .gt-btn--primary { box-shadow: 0 10px 22px -12px rgba(52,133,178,.8); }

/* Separador "o" antes del botón biométrico */
.gt-login-sep { display: flex; align-items: center; gap: 12px; color: var(--gt-dim); font-size: 12px; }
.gt-login-sep::before, .gt-login-sep::after { content: ""; flex: 1; height: 1px; background: var(--gt-border); }

.gt-btn--bio { background: #fff; border-color: var(--gt-blue); color: var(--gt-blue); display: flex; align-items: center; justify-content: center; gap: 8px; }
.gt-login-msg { min-height: 18px; font-size: 13px; text-align: center; color: var(--gt-dim); }
.gt-login-msg--err { color: var(--gt-red); }
.gt-login-msg--ok { color: var(--gt-ok); }