html, body {
    height: 100%;
    overflow: hidden; /* Evita el scroll en la página principal, solo en el contenido de la app */
}

/* --- ESTILO GOOGLE --- */
:root {
    --font-family-google: 'Google Sans', sans-serif;
    --blue-google: #1a73e8;
    --blue-google-hover: #185abc;
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --border-color: #dadce0;
    --transition-speed: 0.2s;
}

[data-theme="dark"] {
    --bg-primary: #202124;
    --bg-secondary: #292a2d;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --border-color: #5f6368;
}

body { 
    font-family: var(--font-family-google);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

* {
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

/* Sobrescribir estilos para aplicar el tema de Google */
.g-font { font-family: var(--font-family-google); }
.g-bg-primary { background-color: var(--bg-primary); }
.g-bg-secondary { background-color: var(--bg-secondary); }
.g-text-primary { color: var(--text-primary); }
.g-text-secondary { color: var(--text-secondary); }
.g-border { border-color: var(--border-color); }

.g-btn-primary {
    background-color: var(--blue-google);
    color: white;
    border-radius: 8px;
    padding: 10px 24px;
    font-weight: 500;
    transition: background-color var(--transition-speed) ease;
}
.g-btn-primary:hover { background-color: var(--blue-google-hover); }
.g-btn-primary:disabled { background-color: #9abaf1; cursor: not-allowed; }


.g-btn-secondary {
    color: var(--blue-google);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 24px;
    font-weight: 500;
    background-color: transparent;
}
.g-btn-secondary:hover { background-color: rgba(26, 115, 232, 0.05); }
[data-theme="dark"] .g-btn-secondary:hover { background-color: rgba(138, 180, 248, 0.1); }
.g-btn-secondary:disabled { color: #bdc1c6; border-color: #dadce0; cursor: not-allowed; background-color: transparent;}
[data-theme="dark"] .g-btn-secondary:disabled { color: #5f6368; border-color: #5f6368; }


/* --- ESTILOS DE ENLACE ACTIVO PARA NAVEGACIÓN INFERIOR --- */
#bottom-nav .nav-link.active {
    color: var(--blue-google);
    font-weight: 700;
}
[data-theme="dark"] #bottom-nav .nav-link.active {
    color: #8ab4f8;
}
#bottom-nav .nav-link i { transition: transform 0.2s ease; }
#bottom-nav .nav-link.active i { transform: scale(1.2); }

/* --- ESTILOS GENERALES --- */
.card { background-color: var(--bg-secondary); border-radius: 12px; border: 1px solid var(--border-color); }
.modal-card { background-color: var(--bg-secondary); border-radius: 16px; }
input, select { background-color: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 8px; }
input:focus, select:focus { outline: none; border-color: var(--blue-google); box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #ccc; border-radius: 4px; }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: #5f6368; }

.floating-add-btn { transition: transform 0.3s ease-in-out; }
.floating-add-btn:hover { transform: scale(1.1); }

/* Estilos para el texto legal */
.prose h4 { font-size: 1.1rem; font-weight: 500; margin-top: 1.5em; margin-bottom: 0.5em; color: var(--text-primary); }
.prose p { margin-bottom: 1em; line-height: 1.6; }
.prose ul { list-style-position: inside; padding-left: 1em; margin-bottom: 1em; }
.prose li { margin-bottom: 0.5em; }
.prose a { color: var(--blue-google); text-decoration: none; }
.prose a:hover { text-decoration: underline; }

/* Estilo para el bocadillo flotante del gestor de gastos de escenario */
.scenario-expense-manager {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 50;
    max-height: 90vh;
    overflow-y: auto;
    max-width: 90vw;
    width: 500px;
}

/* --- ESTILOS DEL MAPA DE CALOR --- */
.calendar-heatmap-day {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1 / 1; /* Celdas cuadradas */
    border-radius: 4px;
    font-size: 0.7rem; /* Texto legible */
}

/* --- ESTILOS DEL CHATBOT --- */
.chat-message {
    max-width: 80%;
    word-wrap: break-word;
}
.chat-message.user {
    background-color: var(--blue-google);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}
.chat-message.bot {
    background-color: #e5e7eb; /* bg-gray-200 */
    color: #1f2937; /* text-gray-800 */
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}
[data-theme="dark"] .chat-message.bot {
    background-color: #3c4043 !important; /* Un gris oscuro */
    color: #e8eaed !important; /* Texto claro */
}

/* Estilos para los bocadillos del chatbot en modo oscuro */
.suggestion-btn {
    background-color: #e5e7eb; /* bg-gray-200 */
    color: #1f2937; /* text-gray-800 */
    transition: background-color 0.2s ease;
}
.suggestion-btn:hover {
    background-color: #d1d5db; /* hover:bg-gray-300 */
}
[data-theme="dark"] .suggestion-btn {
    background-color: #4a4a4a;
    color: #e8eaed;
}
[data-theme="dark"] .suggestion-btn:hover {
    background-color: #606060;
}

/* Estilos para la lista de gastos con checkbox */
.expense-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
}
/* --- ESTILOS DEL CHAT 1-a-1 Y NOTIFICACIONES --- */
.chat-bubble {
    max-width: 75%;
    word-wrap: break-word;
    padding: 8px 12px;
    border-radius: 18px;
}
.chat-bubble.sent {
    background-color: var(--blue-google);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}
.chat-bubble.received {
    background-color: #e5e7eb;
    color: #1f2937;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}
[data-theme="dark"] .chat-bubble.received {
    background-color: #3c4043;
    color: #e8eaed;
}
.nav-link-container {
    position: relative;
}
.notification-badge {
    position: absolute;
    top: 4px;
    right: 24px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #EA4335; /* Google Red */
    display: none;
}
/* Estilos para avatares de miembros en una pila */
.member-avatar-stack .avatar {
    margin-left: -12px;
    border: 2px solid var(--bg-secondary);
}
.member-avatar-stack .avatar:first-child {
    margin-left: 0;
}

/* ESTILOS PARA LA LISTA DE INVITACIÓN DE AMIGOS */
.friend-invite-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s;
}
.friend-invite-item:hover {
    background-color: rgba(0,0,0,0.05);
}
[data-theme="dark"] .friend-invite-item:hover {
    background-color: rgba(255,255,255,0.05);
}
.friend-invite-item input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
}

/* ESTILOS PARA LA GESTIÓN DE MIEMBROS */
.manage-member-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}
.manage-member-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.manage-member-item:first-child {
    padding-top: 0;
}

.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    padding: 16px 24px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    color: white;
    z-index: 100;
    transition: bottom 0.5s ease-in-out;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.toast.show {
    bottom: 40px;
}

.toast.success {
    background-color: #4CAF50;
}

.toast.error {
    background-color: #f44336;
}

.toast.info {
    background-color: #2196F3;
}

#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    z-index: 1000;
}