/* ============================================
   LOGIN — VARIABLES
   ============================================ */
:root {
    --bg: #f0f0f0;
    --card-bg: #ffffff;
    --text: #333;
    --text-muted: #777;
    --border: #ccc;
    --accent: #e53935;
    --accent-hover: #c62828;
    --input-bg: #fff;
    --error-bg: #ffebee;
    --error-text: #c62828;
}

[data-theme="oscuro"] {
    --bg: #1a1a1a;
    --card-bg: #2a2a2a;
    --text: #e0e0e0;
    --text-muted: #999;
    --border: #555;
    --input-bg: #333;
    --error-bg: #3e1a1a;
    --error-text: #ef9a9a;
}

/* ============================================
   LOGIN — BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s, color 0.3s;
}

/* ============================================
   LOGIN — TARJETA
   ============================================ */
.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 40px 32px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    text-align: center;
    transition: background 0.3s, box-shadow 0.3s;
}

.login-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 12px;
}

.login-card h1 {
    font-size: 22px;
    color: var(--accent);
    margin-bottom: 28px;
    font-weight: 700;
}

/* ============================================
   LOGIN — FORMULARIO
   ============================================ */
.login-card label {
    display: block;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 4px;
    margin-top: 14px;
}

.login-card input[type="text"],
.login-card input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 15px;
    background: var(--input-bg);
    color: var(--text);
    transition: border-color 0.2s, background 0.3s, color 0.3s;
}

.login-card input:focus {
    outline: none;
    border-color: var(--accent);
}

.password-wrapper {
    position: relative;
}

.btn-eye {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    opacity: 0.6;
}

.btn-eye:hover {
    opacity: 1;
}

/* ============================================
   LOGIN — BOTON
   ============================================ */
.btn-login {
    width: 100%;
    margin-top: 24px;
    padding: 12px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-login:hover {
    background: var(--accent-hover);
}

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================
   LOGIN — ERRORES
   ============================================ */
.login-error {
    display: none;
    margin-top: 14px;
    padding: 10px 14px;
    background: var(--error-bg);
    color: var(--error-text);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    text-align: left;
}

.login-error.visible {
    display: block;
}

/* ============================================
   TOGGLE TEMA
   ============================================ */
.theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    background: #333;
    color: #f5f5f5;
    border: 2px solid #555;
    border-radius: 20px;
    width: 36px;
    height: 36px;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, border-color 0.2s;
    z-index: 10;
}

[data-theme="oscuro"] .theme-toggle {
    background: #e53935;
    border-color: #c62828;
    color: #fff;
}

/* ============================================
   POPUPS
   ============================================ */
.popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.popup-content {
    background: var(--card-bg);
    color: var(--text);
    padding: 25px;
    width: 420px;
    max-width: 90vw;
    border-radius: 10px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
    position: relative;
    text-align: center;
}

.popup-content h3 {
    margin-top: 0;
    color: var(--accent);
    margin-bottom: 12px;
}

.popup-content p {
    margin: 8px 0;
    font-size: 14px;
}

.popup-field {
    text-align: left;
    margin-top: 14px;
}

.popup-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.popup-field input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 15px;
    background: var(--input-bg);
    color: var(--text);
    box-sizing: border-box;
    transition: border-color 0.2s, background 0.3s, color 0.3s;
}

.popup-field input:focus {
    outline: none;
    border-color: var(--accent);
}

.popup-buttons {
    margin-top: 20px;
    text-align: center;
}

.popup-buttons button {
    margin: 0 6px;
    padding: 8px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.btn-secondary {
    background: #666;
    color: #fff;
}

.btn-secondary:hover {
    background: #555;
}

[data-theme="oscuro"] .popup-content {
    background: #2a2a2a;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.6);
}

[data-theme="oscuro"] .popup-content h3 {
    color: #e53935;
}

[data-theme="oscuro"] .popup-content p {
    color: #ccc;
}

[data-theme="oscuro"] .btn-secondary {
    background: #555;
    color: #e0e0e0;
}

[data-theme="oscuro"] .btn-secondary:hover {
    background: #666;
}

.popup-desactivado {
    max-width: 420px;
    text-align: center;
}

.popup-desactivado h3 {
    color: #c62828;
}

.popup-aviso-importante {
    border: 3px solid #e53935;
    text-align: left;
}

.popup-aviso-importante h3 {
    text-align: center;
    color: #e53935;
}

.popup-aviso-importante .detalle-label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.popup-aviso-importante p {
    line-height: 1.5;
}

.aviso-importante-nota {
    font-size: 12px;
    color: #666;
    font-style: italic;
    margin-top: 12px;
    padding: 8px;
    background: #f5f5f5;
    border-left: 3px solid #e53935;
    text-align: left;
}

[data-theme="oscuro"] .aviso-importante-nota {
    color: #ccc;
    background: #2a2a2a;
}

.reset-exito {
    margin-top: 10px;
    padding: 10px;
    border-radius: 6px;
    font-size: 13px;
    text-align: center;
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}
[data-theme="oscuro"] .reset-exito {
    background: #1b3d2b;
    border-color: #2d6a4f;
    color: #95d5b2;
}
.reset-error {
    margin-top: 10px;
    padding: 10px;
    border-radius: 6px;
    font-size: 13px;
    text-align: center;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}
[data-theme="oscuro"] .reset-error {
    background: #3e1a1a;
    border-color: #5c2020;
    color: #ef9a9a;
}

.popup-aviso-importante .popup-buttons {
    text-align: center;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 480px) {
    .login-container {
        padding: 16px;
    }

    .login-card {
        padding: 32px 20px;
    }

    .login-card h1 {
        font-size: 19px;
    }
}

.carga-barra-fondo {
    width: 100%;
    height: 12px;
    background: var(--border);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 8px;
}

.carga-barra-progreso {
    height: 100%;
    background: var(--accent);
    border-radius: 6px;
    transition: width 0.3s ease;
}

.carga-porcentaje {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 16px;
}

.carga-log {
    font-size: 13px;
    color: var(--text-muted);
    min-height: 20px;
    font-family: monospace;
}

/* --- Popup de carga --- */
.popup-carga {
    width: 420px;
    max-width: 90vw;
}

.popup-carga .carga-barra-fondo {
    width: 100%;
    height: 14px;
    background: var(--border);
    border-radius: 7px;
    overflow: hidden;
    margin: 16px 0 8px;
}

.popup-carga .carga-barra-progreso {
    height: 100%;
    background: var(--accent);
    border-radius: 7px;
    transition: width 0.3s ease;
}

.popup-carga .carga-porcentaje {
    font-size: 15px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 14px;
}

.popup-carga .carga-log {
    background: var(--bg);
    padding: 8px 12px;
    border-radius: 6px;
    word-break: break-word;
}

.popup-carga-error .carga-log {
    background: var(--error-bg);
    color: var(--error-text);
    border-left: 4px solid var(--error-text);
}