/* CSS para Aplicación de Control de Proteínas - Estilo Dinámico (Dark/Light) */
:root {
    /* DARK MODE (Default) */
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --text-color: #e0e0e0;
    --border-color: rgba(255, 255, 255, 0.1);
    --input-bg: rgba(255, 255, 255, 0.05);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --nav-bg: #1e1e1e;
}

body.light-mode {
    /* LIGHT MODE */
    --bg-color: #f8f9fa;
    --surface-color: #ffffff;
    --text-color: #212529;
    --border-color: rgba(0, 0, 0, 0.1);
    --input-bg: #ffffff;
    --card-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --nav-bg: #ffffff;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.text-pink { color: #ff80ab !important; }

.login-container {
    max-width: 400px;
    margin: 0;
    padding: 35px;
    background: rgba(25, 25, 25, 0.75);
    border-radius: 28px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

body.light-mode .login-container {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.login-page {
    background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../img/login-bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

body.light-mode .login-page {
    background-image: linear-gradient(rgba(255,255,255,0.4), rgba(255,255,255,0.4)), url('../img/login-bg.png');
}

.glass-input {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    color: white !important;
    backdrop-filter: blur(5px);
}

body.light-mode .glass-input {
    background: rgba(255, 255, 255, 0.5) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    color: #212529 !important;
}

.glass-input::placeholder {
    color: rgba(255,255,255,0.5);
}

body.light-mode .glass-input::placeholder {
    color: rgba(0,0,0,0.4);
}

.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    color: var(--text-color);
    box-shadow: var(--card-shadow);
}

.card-compact {
    padding: 0.75rem !important;
}

.extra-small {
    font-size: 0.7rem !important;
}

.p-tight {
    padding: 0.4rem !important;
}

.m-tight {
    margin-bottom: 0.3rem !important;
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
}

.form-control,
.form-select {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 8px;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--primary-color);
    box-shadow: none;
    color: var(--text-color);
}

.login-page h1, .login-page p.lead {
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.navbar {
    background-color: var(--nav-bg) !important;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* Ensure navbar visibility in Light Mode */
body.light-mode .navbar-dark .navbar-brand,
body.light-mode .navbar-dark .nav-link {
    color: #212529 !important;
}

.table-dark {
    --bs-table-bg: var(--surface-color);
    --bs-table-color: var(--text-color);
    --bs-table-border-color: var(--border-color);
}

body.light-mode .table-dark {
    --bs-table-bg: #ffffff;
    --bs-table-color: #212529;
    --bs-table-border-color: #dee2e6;
}

.animate-fade {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.theme-toggle-btn {
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Teclado Numérico Virtual */
.pos-relative { position: relative; }
.keypad-container {
    position: absolute;
    top: 105%;
    left: 0;
    right: 0;
    z-index: 1050;
    margin-top: 10px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(15px);
    border-top: 4px solid var(--primary-color);
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.keypad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.key-btn {
    padding: 12px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-color);
    font-size: 1.4rem;
    font-weight: 700;
    transition: all 0.2s ease;
    cursor: pointer;
}

.key-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

@media (max-width: 576px) {
    .keypad-container {
        position: fixed;
        bottom: 0px;
        left: 0;
        right: 0;
        top: auto;
        border-radius: 20px 20px 0 0;
        max-width: 100%;
        padding: 20px 15px 30px 15px;
    }
}

/* --- Responsive & Branding Fixes --- */
.navbar-brand img { 
    height: 40px; 
    width: auto;
}

.login-brand-img { 
    max-width: 250px; 
    height: auto; 
    margin-bottom: 20px; 
}

.text-wrap-badge { 
    white-space: normal !important; 
    text-align: left; 
    line-height: 1.4; 
    word-break: break-word; 
}

/* Specific fix for Navbar Toggler in Light Mode */
body.light-mode .navbar-dark .navbar-toggler {
    border-color: #0d6efd !important;
    background-color: rgba(13, 110, 253, 0.1);
}

body.light-mode .navbar-dark .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%280, 0, 0, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

@media (max-width: 768px) {
    .navbar-brand img { height: 32px !important; }
    .navbar-brand span { font-size: 0.95rem; }
    .login-brand-img { max-width: 200px !important; }
    .display-4 { font-size: 2.2rem; }
}

@media (max-width: 576px) {
    .navbar-brand span { display: none; }
}