:root {
    --bg: #000000;
    --panel: #111111;
    --border: rgba(255,255,255,0.1);
    --fg: #ffffff;
    --fg-muted: #a8a8a8;
    --accent: #a6da35;
    --accent-fg: #a6da35;
    --accent-ink: #0a0a0a;
    --riesgo-bajo: #256eff;
    --riesgo-medio: #f7d000;
    --riesgo-alto: #fe4d4d;
    --input-bg: #0c0c0c;
    --font-display: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
}

@media (prefers-color-scheme: light) {
    :root:not([data-theme]) {
        --bg: #ffffff;
        --panel: #f4f4f4;
        --border: rgba(0,0,0,0.1);
        --fg: #0a0a0a;
        --fg-muted: #55575c;
        --accent-fg: #5c7a1f;
        --input-bg: #f7f7f7;
    }
}
:root[data-theme="light"] {
    --bg: #ffffff;
    --panel: #f4f4f4;
    --border: rgba(0,0,0,0.1);
    --fg: #0a0a0a;
    --fg-muted: #55575c;
    --accent-fg: #5c7a1f;
    --input-bg: #f7f7f7;
}
:root[data-theme="dark"] {
    --bg: #000000;
    --panel: #111111;
    --border: rgba(255,255,255,0.1);
    --fg: #ffffff;
    --fg-muted: #a8a8a8;
    --accent-fg: #a6da35;
    --input-bg: #0c0c0c;
}

.logo-para-oscuro { display: block; }
.logo-para-claro { display: none; }
@media (prefers-color-scheme: light) {
    :root:not([data-theme]) .logo-para-oscuro { display: none; }
    :root:not([data-theme]) .logo-para-claro { display: block; }
}
:root[data-theme="light"] .logo-para-oscuro { display: none; }
:root[data-theme="light"] .logo-para-claro { display: block; }
:root[data-theme="dark"] .logo-para-oscuro { display: block; }
:root[data-theme="dark"] .logo-para-claro { display: none; }
* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-body);
    line-height: 1.55;
}
h1, h2 { font-family: var(--font-display); font-weight: 800; margin: 0 0 16px; }
a { color: inherit; }

.wrap { max-width: 1000px; margin: 0 auto; padding: 32px 24px 80px; }
.wrap-narrow { max-width: 480px; margin: 0 auto; padding: 32px 20px 40px; }

/* ---- App header ---- */
.app-header { border-bottom: 1px solid var(--border); }
.app-header__inner {
    max-width: 1000px; margin: 0 auto; padding: 14px 24px;
    display: flex; align-items: center; gap: 28px;
}
.app-header__brand img { height: 18px; }
.app-nav { display: flex; gap: 20px; flex: 1; }
.app-nav a { color: var(--fg-muted); text-decoration: none; font-size: 14px; font-weight: 500; }
.app-nav a:hover { color: var(--fg); }
.app-header__user { margin-left: auto; display: flex; align-items: center; gap: 14px; font-size: 14px; color: var(--fg-muted); }
.app-header__logout { color: var(--fg-muted); text-decoration: none; }
.app-header__logout:hover { color: var(--fg); }

.page-head { margin-bottom: 28px; }

/* ---- Buttons / forms ---- */
.btn {
    display: inline-block; border: 1px solid transparent; border-radius: 4px;
    font-family: var(--font-body); font-weight: 600; font-size: 14px;
    padding: 11px 20px; cursor: pointer; text-decoration: none;
}
.btn--accent { background: var(--accent); color: var(--accent-ink); }
.btn--accent:hover { background: #b8ea47; }
.btn--ghost { background: transparent; border-color: var(--border); color: var(--fg); }
.btn--ghost:hover { border-color: var(--fg); }
.btn--block { width: 100%; }
.btn--sm { padding: 7px 14px; font-size: 13px; }

input, textarea {
    background: var(--input-bg); border: 1px solid var(--border); color: var(--fg);
    border-radius: 4px; padding: 10px 12px; font-family: var(--font-body); font-size: 15px;
    width: 100%;
}
input:focus, textarea:focus, button:focus-visible, a:focus-visible {
    outline: 2px solid var(--accent); outline-offset: 2px;
}
label { display: block; font-size: 13px; color: var(--fg-muted); margin-bottom: 6px; }

/* ---- Login ---- */
.login-body {
    background: var(--bg); color: var(--fg); font-family: var(--font-body);
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    margin: 0;
}
.login-card { width: 100%; max-width: 340px; padding: 24px; }
.login-card__logo { height: 20px; margin: 0 auto 32px; }
.login-form { display: flex; flex-direction: column; gap: 6px; }
.login-form label:not(:first-of-type) { margin-top: 10px; }
.login-form button { margin-top: 20px; }
.login-card__error { color: var(--riesgo-alto); font-size: 14px; text-align: center; }
.login-divider { display: flex; align-items: center; gap: 12px; margin: 24px 0; color: var(--fg-muted); font-size: 13px; }
.login-divider::before, .login-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.btn--sso {
    background: transparent; border: 1px solid var(--border); color: var(--fg);
    text-align: center; margin-bottom: 10px;
}
.btn--sso:hover { border-color: var(--fg); }
.checkin-consent { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; color: var(--fg-muted); margin-top: 4px; line-height: 1.4; }

.selector-idioma { display: flex; gap: 8px; justify-content: center; }
.selector-idioma a {
    text-decoration: none; color: var(--fg-muted); font-size: 12px; font-weight: 600;
    padding: 4px 6px; border-radius: 3px;
}
.selector-idioma a:hover { color: var(--fg); }
.selector-idioma__activo, .selector-tema__activo { color: var(--accent-fg) !important; }

/* ---- Check-in ---- */
.app-lead { color: var(--fg-muted); margin-bottom: 28px; }
.checkin-form { display: flex; flex-direction: column; gap: 22px; }
.checkin-field label { color: var(--fg); font-size: 15px; margin-bottom: 10px; }
.checkin-field { display: flex; flex-direction: column; }
.checkin-field input[type=range] { width: 100%; accent-color: var(--accent); }
.checkin-field output { align-self: flex-end; color: var(--accent-fg); font-weight: 700; font-family: var(--font-display); }
.app-notice { background: var(--panel); border: 1px solid var(--border); padding: 12px 16px; border-radius: 4px; margin-bottom: 20px; }
.app-secondary-link { display: inline-block; margin-top: 24px; color: var(--fg-muted); text-decoration: none; font-size: 14px; }
.app-secondary-link:hover { color: var(--fg); }

/* ---- Chat ---- */
.chat-page { display: flex; flex-direction: column; height: calc(100vh - 60px); padding-bottom: 20px; }
.chat-window {
    flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 12px;
    padding: 8px 2px 20px;
}
.chat-window--readonly { max-height: 420px; flex: none; background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 16px; }
.chat-bubble { max-width: 80%; padding: 12px 16px; border-radius: 14px; font-size: 15px; line-height: 1.5; }
.chat-bubble--ia { background: var(--panel); border: 1px solid var(--border); align-self: flex-start; border-bottom-left-radius: 4px; }
.chat-bubble--atleta { background: var(--accent); color: var(--accent-ink); align-self: flex-end; border-bottom-right-radius: 4px; }
.chat-form { display: flex; gap: 10px; align-items: flex-end; }
.chat-form textarea { resize: none; max-height: 120px; }

/* ---- Tables / tags ---- */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
.data-table th { color: var(--fg-muted); font-weight: 500; font-size: 13px; }
.data-table--compact th, .data-table--compact td { padding: 8px 6px; }
.data-table__row--alerta { background: rgba(254,77,77,0.06); }

.tag { display: inline-block; padding: 3px 9px; border-radius: 100px; font-size: 12px; font-weight: 600; }
.tag--ok { background: rgba(166,218,53,0.15); color: var(--accent-fg); }
.tag--alerta { background: rgba(254,77,77,0.15); color: var(--riesgo-alto); }
.tag--inactivo { background: rgba(255,255,255,0.1); color: var(--fg-muted); margin-left: 8px; }
.tag--publico { background: rgba(37,110,255,0.15); color: var(--riesgo-bajo); margin-left: 8px; }
.tag--riesgo-bajo { background: rgba(37,110,255,0.15); color: var(--riesgo-bajo); margin-left: 8px; }
.tag--riesgo-medio { background: rgba(247,208,0,0.15); color: var(--riesgo-medio); margin-left: 8px; }
.tag--riesgo-alto { background: rgba(254,77,77,0.18); color: var(--riesgo-alto); margin-left: 8px; }

.app-empty, .app-muted { color: var(--fg-muted); font-size: 14px; }

/* ---- Athlete detail grid ---- */
.atleta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 20px; }
.panel--full { grid-column: 1 / -1; }
.nota-form { display: flex; gap: 10px; margin-bottom: 20px; align-items: flex-start; }
.nota-form textarea { flex: 1; }
.nota { border-top: 1px solid var(--border); padding: 12px 0; }
.nota__fecha { color: var(--fg-muted); font-size: 12px; margin: 0 0 4px; }

/* ---- Alerts inbox ---- */
.alertas-list { display: flex; flex-direction: column; gap: 12px; }
.alerta-card {
    display: flex; justify-content: space-between; align-items: center; gap: 16px;
    background: var(--panel); border: 1px solid var(--border); border-left: 3px solid var(--riesgo-medio);
    border-radius: 6px; padding: 16px 20px; flex-wrap: wrap;
}
.alerta-card--alto { border-left-color: var(--riesgo-alto); }
.alerta-card__info { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.alerta-card__acciones { display: flex; align-items: center; gap: 16px; }

@media (max-width: 720px) {
    .atleta-grid { grid-template-columns: 1fr; }
    .app-header__inner { flex-wrap: wrap; row-gap: 10px; }
    .app-header__user { margin-left: 0; width: 100%; justify-content: flex-end; }
}