/* ===== VARIABLES Y TEMA ===== */
:root {
    --primary: #1a3a6a;
    --primary-dark: #0f2437;
    --accent: #4087d9;
    --accent-light: #e5c9a1;
    --light: #f5f5f5;
    --text-dark: #2c3e50;
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
}

/* ===== RESET Y BASE ===== */
body.dark-mode {
    --light: #060912;
    --text-dark: #e6edf3;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* ===== ANIMACIONES GLOBALES ===== */

@keyframes gradient-shift {
    0%, 100% {
        background: 
            radial-gradient(circle at 30% 30%, rgba(100, 200, 255, 0.3) 0%, transparent 50%),
            linear-gradient(180deg, #0a1f3f 0%, #1a3a6a 20%, #2d5a9e 40%, #4087d9 60%, #5ba3e8 100%);
    }
    25% {
        background: 
            radial-gradient(circle at 25% 35%, rgba(120, 210, 255, 0.35) 0%, transparent 50%),
            linear-gradient(180deg, #0d2847 0%, #1f3f6f 20%, #3366aa 40%, #5095e8 60%, #66b3ff 100%);
    }
    50% {
        background: 
            radial-gradient(circle at 35% 25%, rgba(80, 180, 255, 0.25) 0%, transparent 50%),
            linear-gradient(180deg, #081833 0%, #173052 20%, #2a4d7a 40%, #3d7bc9 60%, #56a5f2 100%);
    }
    75% {
        background: 
            radial-gradient(circle at 28% 32%, rgba(110, 210, 255, 0.32) 0%, transparent 50%),
            linear-gradient(180deg, #0a1f3f 0%, #1d3d73 20%, #2f5fa8 40%, #4297e0 60%, #5db5ff 100%);
    }
}

@keyframes float-animation {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse-scale {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes color-cycle {
    0% {
        color: #ff6b6b;
        text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
    }
    25% {
        color: #ffd93d;
        text-shadow: 0 0 10px rgba(255, 217, 61, 0.5);
    }
    50% {
        color: #6bcf7f;
        text-shadow: 0 0 10px rgba(107, 207, 127, 0.5);
    }
    75% {
        color: #4d96ff;
        text-shadow: 0 0 10px rgba(77, 150, 255, 0.5);
    }
    100% {
        color: #ff6b6b;
        text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
    }
}

@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce-in {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 0 0 5px rgba(212, 165, 116, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(212, 165, 116, 0.8);
    }
}

/* ===== FONDO CON IMAGEN DE HOTEL ===== */
.auth-container {
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('https://visitqatar.com/adobe/dynamicmedia/deliver/dm-aid--19d46ad7-bec3-471d-a8fa-74824ea8c2ca/grand-pool-almessila.jpg?preferwebp=true&quality=75&width=2560');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
    padding: 20px;
}

/* Overlay oscuro sobre la imagen para legibilidad */
.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1;
}

/* Efecto de viñeta sutil en los bordes */
.auth-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(0, 0, 0, 0.4) 100%);
    pointer-events: none;
    z-index: 1;
}


/* ===== TARJETA DE LOGIN ===== */
.auth-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 25px;
    overflow: hidden;
    max-width: 900px;
    width: 100%;
    display: flex;
    flex-direction: row;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 50px rgba(100, 150, 200, 0.2);
    position: relative;
    z-index: 10;
    animation: slide-up 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    backdrop-filter: blur(10px);
}

@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Imagen del hotel - Lado izquierdo */
.auth-image {
    flex: 1;
    background: linear-gradient(rgba(26, 58, 106, 0.8), rgba(26, 58, 106, 0.4)), 
                url('https://images.unsplash.com/photo-1541332246502-2e99eaa96cc1?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: slide-in-left 0.8s ease;
}

.auth-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><defs><pattern id="dots" x="0" y="0" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="1200" height="800" fill="url(%23dots)"/></svg>');
    opacity: 0.5;
    animation: float-animation 4s ease-in-out infinite;
}

.auth-image::after {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
}

.auth-image-content {
    position: relative;
    z-index: 1;
}

.auth-image h2 {
    font-size: 48px;
    font-weight: 700;
    margin: 0 0 15px 0;
    letter-spacing: 2px;
    min-height: 60px;
    background: rgba(0, 0, 0, 0.5);
    padding: 15px 25px;
    border-radius: 10px;
    display: inline-block;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.auth-image p {
    font-size: 18px;
    margin: 0;
    font-weight: 300;
    opacity: 0.95;
}

/* ===== FORMULARIO DE AUTENTICACIÓN ===== */
.auth-form {
    flex: 1;
    padding: 50px 45px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    animation: slide-in-right 0.8s ease;
}

.auth-form h1 {
    font-size: 42px;
    color: var(--primary);
    margin: 0 0 10px 0;
    font-weight: 700;
    animation: bounce-in 0.6s ease;
    text-align: center;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.auth-form .subtitle {
    color: #999;
    font-size: 14px;
    margin-bottom: 30px;
    animation: fade-in 0.8s ease 0.2s backwards;
    text-align: center;
}

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.form-group {
    margin-bottom: 20px;
    animation: slide-in-left 0.6s ease backwards;
}

.form-group:nth-child(2) {
    animation-delay: 0.1s;
}

.form-group:nth-child(3) {
    animation-delay: 0.2s;
}

.form-group:nth-child(4) {
    animation-delay: 0.3s;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    box-sizing: border-box;
    font-family: inherit;
    background: white;
    position: relative;
    z-index: 1;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.1), 0 0 15px rgba(212, 165, 116, 0.2);
    transform: translateY(-2px);
}

.form-group input::placeholder {
    color: #ccc;
}

/* ===== CHECKBOX ===== */
.form-check {
    display: flex;
    align-items: center;
    margin: 20px 0;
    animation: fade-in 0.8s ease 0.4s backwards;
}

.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    cursor: pointer;
    accent-color: var(--primary);
    transition: all 0.3s ease;
}

.form-check input[type="checkbox"]:hover {
    transform: scale(1.2);
}

.form-check label {
    margin: 0;
    cursor: pointer;
    font-size: 13px;
}

/* ===== BOTONES ===== */
.btn-auth {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    border: none;
    padding: 14px 30px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 20px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    width: 100%;
    box-shadow: 0 4px 15px rgba(26, 58, 106, 0.3);
    position: relative;
    overflow: hidden;
    animation: fade-in 0.8s ease 1s backwards;
}

.btn-auth::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-auth:hover::before {
    width: 300px;
    height: 300px;
}

.btn-auth:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(26, 58, 106, 0.4);
    background: linear-gradient(135deg, var(--accent) 0%, #5ba3e8 100%);
}

.btn-auth:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-secondary-auth {
    background: white;
    color: var(--accent);
    border: 2px solid var(--accent);
    padding: 12px 30px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 10px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    width: 100%;
    box-sizing: border-box;
    animation: fade-in 0.8s ease 0.5s backwards;
}

.btn-secondary-auth:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(64, 135, 217, 0.3);
}

/* ===== LINKS ===== */
.auth-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 13px;
    margin-top: 15px;
    display: inline-block;
    transition: all 0.3s ease;
    animation: fade-in 0.8s ease 0.6s backwards;
    text-align: center;
    width: 100%;
}

.auth-link:hover {
    color: var(--primary);
    text-decoration: underline;
    transform: translateX(5px);
}

.auth-footer {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
    text-align: center;
    color: #666;
    font-size: 14px;
    animation: fade-in 0.8s ease 0.6s backwards;
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.auth-footer a:hover {
    text-decoration: underline;
    color: var(--accent);
}

/* ===== MENSAJES FLASH ===== */
.alert {
    border-radius: 8px;
    border: none;
    padding: 15px 20px;
    margin-bottom: 20px;
    font-size: 14px;
    animation: slideIn 0.3s ease;
    position: relative;
    overflow: hidden;
}

.alert::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
    pointer-events: none;
}

.alert-success {
    background: #ecfdf5;
    color: #065f46;
    border-left: 4px solid #10b981;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border-left: 4px solid #ef4444;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .auth-card {
        flex-direction: column;
    }

    .auth-image {
        padding: 30px 20px;
        min-height: 300px;
    }

    .auth-image h2 {
        font-size: 36px;
        letter-spacing: 1px;
    }

    .auth-form {
        padding: 30px 25px;
    }

    .auth-form h1 {
        font-size: 24px;
    }
}

/* ===== SIDEBAR NAVIGATION (DASHBOARD) ===== */
body.authenticated {
    background: var(--light);
}

.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar-nav {
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 30px 0;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    animation: slide-in-left 0.6s ease;
}

.sidebar-brand {
    padding: 0 25px;
    margin-bottom: 30px;
    animation: bounce-in 0.6s ease;
}

.sidebar-brand h3 {
    margin: 0;
    color: white;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
    animation: color-cycle 4s ease infinite;
}

.sidebar-brand p {
    margin: 5px 0 0 0;
    color: var(--accent);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu li {
    margin: 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
    font-size: 15px;
    font-weight: 500;
    position: relative;
}

.sidebar-menu a i {
    margin-right: 15px;
    font-size: 18px;
    width: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-left-color: var(--accent);
    transform: translateX(5px);
}

.sidebar-menu a:hover i {
    transform: scale(1.2) rotate(5deg);
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 20px 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    animation: fade-in 0.8s ease 0.4s backwards;
}

.sidebar-user {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    animation: slide-in-left 0.6s ease;
}

.sidebar-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, #c9a87a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    margin-right: 12px;
    font-size: 16px;
    animation: pulse-scale 2s ease infinite;
    box-shadow: 0 0 10px rgba(212, 165, 116, 0.3);
}

.sidebar-user-name {
    color: white;
    font-size: 13px;
    font-weight: 600;
    word-break: break-word;
}

.sidebar-logout {
    display: block;
    width: 100%;
    padding: 10px 15px;
    background: rgba(255, 67, 67, 0.2);
    color: #ff6b6b;
    border: 1px solid rgba(255, 67, 67, 0.3);
    border-radius: 6px;
    text-align: center;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    animation: fade-in 0.8s ease 0.5s backwards;
}

.sidebar-logout:hover {
    background: rgba(255, 67, 67, 0.3);
    color: white;
    transform: scale(1.05);
}

.main-content {
    margin-left: 260px;
    padding: 30px;
    flex: 1;
    animation: fade-in 0.8s ease 0.3s backwards;
}

.main-content header {
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-sm);
    animation: bounce-in 0.6s ease 0.4s;
}

.main-content h1 {
    margin: 0;
    color: var(--primary);
    font-size: 28px;
    animation: slide-in-left 0.6s ease;
}

/* ===== CARDS ===== */
.card {
    animation: bounce-in 0.6s ease;
}

.card:nth-child(2) {
    animation-delay: 0.1s;
}

.card:nth-child(3) {
    animation-delay: 0.2s;
}

.card-header {
    animation: glow-pulse 2s ease infinite;
}

/* ===== RESPONSIVE SIDEBAR ===== */
@media (max-width: 768px) {
    .sidebar-nav {
        width: 100%;
        height: auto;
        position: static;
        box-shadow: none;
        border-bottom: 1px solid #e0e0e0;
        padding: 15px 0;
    }

    .sidebar-brand {
        padding: 0 20px;
        margin-bottom: 15px;
    }

    .sidebar-menu {
        display: flex;
        flex-wrap: wrap;
    }

    .sidebar-menu li {
        flex: 1;
        min-width: 150px;
    }

    .sidebar-menu a {
        flex-direction: column;
        text-align: center;
        padding: 10px 15px;
    }

    .sidebar-menu a i {
        margin-right: 0;
        margin-bottom: 5px;
    }

    .sidebar-footer {
        position: static;
        border-top: none;
        padding: 15px 20px;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }
}


/* --- Premium Language Switcher (from style.css) --- */
.lang-switch-premium {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.9);
  padding: 5px;
  border-radius: 30px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  border: 1px solid rgba(212, 175, 55, 0.3);
  backdrop-filter: blur(10px);
}

.lang-switch-label {
  color: var(--primary);
  font-size: 1.1rem;
  margin: 0 8px 0 6px;
  display: flex;
  align-items: center;
}

.lang-btn-premium {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: #555;
}

.lang-btn-premium:hover {
  background: rgba(212, 175, 55, 0.1);
  color: #111;
  transform: translateY(-1px);
}

.lang-btn-premium.active {
  background: linear-gradient(135deg, #1a3a6a 0%, #4087d9 100%);
  color: white !important;
  box-shadow: 0 4px 12px rgba(26, 58, 106, 0.35);
    padding: 20px 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    animation: fade-in 0.8s ease 0.4s backwards;
}

.sidebar-user {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    animation: slide-in-left 0.6s ease;
}

.sidebar-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent) 0%, #c9a87a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    margin-right: 12px;
    font-size: 16px;
    animation: pulse-scale 2s ease infinite;
    box-shadow: 0 0 10px rgba(212, 165, 116, 0.3);
}

.sidebar-user-name {
    color: white;
    font-size: 13px;
    font-weight: 600;
    word-break: break-word;
}

.sidebar-logout {
    display: block;
    width: 100%;
    padding: 10px 15px;
    background: rgba(255, 67, 67, 0.2);
    color: #ff6b6b;
    border: 1px solid rgba(255, 67, 67, 0.3);
    border-radius: 6px;
    text-align: center;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    animation: fade-in 0.8s ease 0.5s backwards;
}

.sidebar-logout:hover {
    background: rgba(255, 67, 67, 0.3);
    color: white;
    transform: scale(1.05);
}

.main-content {
    margin-left: 260px;
    padding: 30px;
    flex: 1;
    animation: fade-in 0.8s ease 0.3s backwards;
}

.main-content header {
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-sm);
    animation: bounce-in 0.6s ease 0.4s;
}

.main-content h1 {
    margin: 0;
    color: var(--primary);
    font-size: 28px;
    animation: slide-in-left 0.6s ease;
}

/* ===== CARDS ===== */
.card {
    animation: bounce-in 0.6s ease;
}

.card:nth-child(2) {
    animation-delay: 0.1s;
}

.card:nth-child(3) {
    animation-delay: 0.2s;
}

.card-header {
    animation: glow-pulse 2s ease infinite;
}

/* ===== RESPONSIVE SIDEBAR ===== */
@media (max-width: 768px) {
    .sidebar-nav {
        width: 100%;
        height: auto;
        position: static;
        box-shadow: none;
        border-bottom: 1px solid #e0e0e0;
        padding: 15px 0;
    }

    .sidebar-brand {
        padding: 0 20px;
        margin-bottom: 15px;
    }

    .sidebar-menu {
        display: flex;
        flex-wrap: wrap;
    }

    .sidebar-menu li {
        flex: 1;
        min-width: 150px;
    }

    .sidebar-menu a {
        flex-direction: column;
        text-align: center;
        padding: 10px 15px;
    }

    .sidebar-menu a i {
        margin-right: 0;
        margin-bottom: 5px;
    }

    .sidebar-footer {
        position: static;
        border-top: none;
        padding: 15px 20px;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }
}

 
 / *   - - -   P r e m i u m   L a n g u a g e   S w i t c h e r   ( f r o m   s t y l e . c s s )   - - -   * / 
 . l a n g - s w i t c h - p r e m i u m   { 
     d i s p l a y :   i n l i n e - f l e x ; 
     a l i g n - i t e m s :   c e n t e r ; 
     b a c k g r o u n d :   r g b a ( 2 5 5 ,   2 5 5 ,   2 5 5 ,   0 . 9 ) ; 
     p a d d i n g :   5 p x ; 
     b o r d e r - r a d i u s :   3 0 p x ; 
     b o x - s h a d o w :   0   4 p x   1 5 p x   r g b a ( 0 , 0 , 0 , 0 . 2 ) ; 
     b o r d e r :   1 p x   s o l i d   r g b a ( 2 1 2 ,   1 7 5 ,   5 5 ,   0 . 3 ) ; 
     b a c k d r o p - f i l t e r :   b l u r ( 1 0 p x ) ; 
 } 
 
 . l a n g - s w i t c h - l a b e l   { 
     c o l o r :   v a r ( - - p r i m a r y ) ; 
     f o n t - s i z e :   1 . 1 r e m ; 
     m a r g i n :   0   8 p x   0   6 p x ; 
     d i s p l a y :   f l e x ; 
     a l i g n - i t e m s :   c e n t e r ; 
 } 
 
 . l a n g - b t n - p r e m i u m   { 
     d i s p l a y :   f l e x ; 
     a l i g n - i t e m s :   c e n t e r ; 
     g a p :   6 p x ; 
     p a d d i n g :   6 p x   1 6 p x ; 
     b o r d e r - r a d i u s :   2 5 p x ; 
     f o n t - s i z e :   0 . 8 5 r e m ; 
     f o n t - w e i g h t :   7 0 0 ; 
     t e x t - d e c o r a t i o n :   n o n e ; 
     t r a n s i t i o n :   a l l   0 . 3 s   c u b i c - b e z i e r ( 0 . 4 ,   0 ,   0 . 2 ,   1 ) ; 
     c o l o r :   # 5 5 5 ; 
 } 
 
 . l a n g - b t n - p r e m i u m : h o v e r   { 
     b a c k g r o u n d :   r g b a ( 2 1 2 ,   1 7 5 ,   5 5 ,   0 . 1 ) ; 
     c o l o r :   # 1 1 1 ; 
     t r a n s f o r m :   t r a n s l a t e Y ( - 1 p x ) ; 
 } 
 
 . l a n g - b t n - p r e m i u m . a c t i v e   { 
     b a c k g r o u n d :   l i n e a r - g r a d i e n t ( 1 3 5 d e g ,   # 1 a 3 a 6 a   0 % ,   # 4 0 8 7 d 9   1 0 0 % ) ; 
     c o l o r :   w h i t e   ! i m p o r t a n t ; 
     b o x - s h a d o w :   0   4 p x   1 2 p x   r g b a ( 2 6 ,   5 8 ,   1 0 6 ,   0 . 3 5 ) ; 
 } 

/* ===== DARK MODE PREMIUM (LUJO) ===== */

/* Tarjeta principal */
body.dark-mode .auth-card {
    background: rgba(15, 23, 42, 0.97) !important;
    border: 1px solid rgba(251, 191, 36, 0.3) !important;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.8) !important;
}

/* Zona del formulario */
body.dark-mode .auth-form {
    background: transparent !important;
}

/* Título principal */
body.dark-mode .auth-form h1 {
    color: #fbbf24 !important;
    text-shadow: 0 0 10px rgba(251, 191, 36, 0.3);
}

/* Subtítulo y etiquetas */
body.dark-mode .auth-form .subtitle,
body.dark-mode .form-group label,
body.dark-mode .auth-form label {
    color: #94a3b8 !important;
}

/* Campos de texto e inputs */
body.dark-mode .form-group input,
body.dark-mode .auth-form input[type="text"],
body.dark-mode .auth-form input[type="password"],
body.dark-mode .auth-form input[type="email"],
body.dark-mode .auth-form input[type="number"],
body.dark-mode .auth-form select,
body.dark-mode .auth-form textarea {
    background: rgba(255, 255, 255, 0.06) !important;
    border-color: rgba(255, 255, 255, 0.12) !important;
    color: #f8fafc !important;
}

/* Focus en inputs */
body.dark-mode .form-group input:focus,
body.dark-mode .auth-form input:focus,
body.dark-mode .auth-form select:focus {
    border-color: #fbbf24 !important;
    box-shadow: 0 0 15px rgba(251, 191, 36, 0.2) !important;
    background: rgba(255, 255, 255, 0.09) !important;
}

/* Placeholder */
body.dark-mode .form-group input::placeholder,
body.dark-mode .auth-form input::placeholder {
    color: rgba(148, 163, 184, 0.6) !important;
}

/* Checkbox label */
body.dark-mode .form-check label {
    color: #94a3b8 !important;
}

/* Footer del formulario */
body.dark-mode .auth-footer,
body.dark-mode .auth-footer p {
    color: #94a3b8 !important;
    border-top-color: rgba(255,255,255,0.08) !important;
}

body.dark-mode .auth-footer a {
    color: #fbbf24 !important;
}

/* Todos los textos generales dentro del form */
body.dark-mode .auth-form p,
body.dark-mode .auth-form span,
body.dark-mode .auth-form div,
body.dark-mode .auth-form small,
body.dark-mode .auth-form h2,
body.dark-mode .auth-form h3,
body.dark-mode .auth-form h4,
body.dark-mode .auth-form h5,
body.dark-mode .auth-form h6 {
    color: #e2e8f0;
}

/* Alertas dentro del formulario de auth */
body.dark-mode .auth-form .alert-success {
    background: rgba(16, 185, 129, 0.15) !important;
    color: #6ee7b7 !important;
    border-left-color: #10b981 !important;
}

body.dark-mode .auth-form .alert-error,
body.dark-mode .auth-form .alert-danger {
    background: rgba(239, 68, 68, 0.15) !important;
    color: #fca5a5 !important;
    border-left-color: #ef4444 !important;
}

/* Botón de idioma en la página de login */
body.dark-mode .btn-premium-lang {
    background: rgba(15, 23, 42, 0.9) !important;
    border-color: rgba(251, 191, 36, 0.3) !important;
    color: #f8fafc !important;
}

body.dark-mode .btn-premium-lang:hover {
    background: rgba(251, 191, 36, 0.1) !important;
    border-color: #fbbf24 !important;
}

/* Menú desplegable de idiomas en login */
body.dark-mode .lang-dropdown-menu {
    background: rgba(15, 23, 42, 0.97) !important;
    border-color: rgba(251, 191, 36, 0.2) !important;
}

body.dark-mode .lang-dropdown-item {
    color: #e2e8f0 !important;
}

body.dark-mode .lang-dropdown-item:hover {
    background: rgba(251, 191, 36, 0.1) !important;
    color: #fbbf24 !important;
}