/* ========================================
   LOGIN - CONSEJO COMUNITARIO RÍO CAJAMBRE
   Hoja de Estilos Profesional
   ======================================== */

/* ========================================
   1. RESET Y VARIABLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores Institucionales Río Cajambre */
    --amarillo-cajambre: #FFD700;
    --azul-cajambre: #1E90FF;
    --azul-oscuro: #0066CC;
    --verde-cajambre: #228B22;
    --rojo-cajambre: #DC143C;
    --negro-cajambre: #1a1a1a;
    --blanco: #ffffff;
    --gris-claro: #f5f5f5;
    --gris: #e5e5e5;
    --gris-oscuro: #6c757d;
    
    /* Gradientes */
    --gradiente-principal: linear-gradient(135deg, var(--amarillo-cajambre) 0%, #FFC700 100%);
    --gradiente-secundario: linear-gradient(135deg, var(--azul-cajambre) 0%, var(--azul-oscuro) 100%);
    --gradiente-fondo: linear-gradient(135deg, #0d4a6b 0%, #1e88e5 50%, #207cca 100%);
    
    /* Sombras */
    --sombra-suave: 0 2px 10px rgba(0, 0, 0, 0.1);
    --sombra-media: 0 5px 20px rgba(0, 0, 0, 0.15);
    --sombra-fuerte: 0 10px 40px rgba(0, 0, 0, 0.2);
    
    /* Bordes */
    --borde-radio: 8px;
    --borde-radio-lg: 15px;
    --borde-radio-xl: 25px;
    
    /* Transiciones */
    --transicion-rapida: 0.3s ease;
    --transicion-media: 0.5s ease;
}

/* ========================================
   2. ESTILOS BASE
   ======================================== */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--gradiente-fondo);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

/* Fondo animado */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
    animation: moveBackground 20s linear infinite;
    pointer-events: none;
}

@keyframes moveBackground {
    0% { background-position: 0 0; }
    100% { background-position: 60px 60px; }
}

/* ========================================
   3. FRANJA ÉTNICA
   ======================================== */
.ethnic-stripe {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    display: flex;
    z-index: 1000;
}

.stripe-green {
    flex: 1;
    background: var(--verde-cajambre);
}

.stripe-black {
    flex: 1;
    background: var(--negro-cajambre);
}

.stripe-red {
    flex: 1;
    background: var(--rojo-cajambre);
}

/* ========================================
   4. CONTENEDOR PRINCIPAL
   ======================================== */
.contenedor {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   5. CAJA DE LOGIN
   ======================================== */
.login-box {
    background: var(--blanco);
    border-radius: var(--borde-radio-xl);
    box-shadow: var(--sombra-fuerte);
    padding: 3rem 2.5rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradiente-principal);
}

/* ========================================
   6. LOGO
   ======================================== */
.logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradiente-principal);
    padding: 5px;
    box-shadow: var(--sombra-media);
    transition: transform var(--transicion-rapida);
    position: relative;
    overflow: hidden;
}

.logo:hover {
    transform: scale(1.05) rotate(5deg);
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    background: var(--blanco);
}

/* Logo fallback si no hay imagen */
.logo:has(img[style*="display: none"])::after {
    content: '🦋';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
}

/* ========================================
   7. TÍTULOS
   ======================================== */
.login-box h2 {
    text-align: center;
    color: var(--azul-oscuro);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.login-box .subtitle {
    text-align: center;
    color: var(--gris-oscuro);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

/* ========================================
   8. FORMULARIO
   ======================================== */
form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

input[type="text"],
input[type="password"],
input[type="email"] {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid var(--gris);
    border-radius: var(--borde-radio);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transicion-rapida);
    background: var(--gris-claro);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus {
    outline: none;
    border-color: var(--azul-cajambre);
    background: var(--blanco);
    box-shadow: 0 0 0 4px rgba(30, 144, 255, 0.1);
    transform: translateY(-2px);
}

input::placeholder {
    color: var(--gris-oscuro);
    opacity: 0.7;
}

/* Iconos en inputs */
.input-group {
    position: relative;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gris-oscuro);
    font-size: 1.1rem;
    z-index: 1;
    pointer-events: none;
}

.input-group input {
    padding-left: 45px;
}

/* ========================================
   9. BOTÓN
   ======================================== */
button[type="submit"] {
    width: 100%;
    padding: 15px;
    background: var(--gradiente-secundario);
    color: var(--blanco);
    border: none;
    border-radius: var(--borde-radio);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transicion-rapida);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

button[type="submit"]:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(30, 144, 255, 0.4);
}

button[type="submit"]:active:not(:disabled) {
    transform: translateY(-1px);
}

button[type="submit"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

button[type="submit"]:hover:not(:disabled)::before {
    left: 100%;
}

button[type="submit"]:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Estado de loading */
button.btn-loading {
    position: relative;
}

button.btn-loading .btn-text {
    visibility: hidden;
}

button.btn-loading .spinner {
    display: inline-block;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

/* ========================================
   10. FOOTER
   ======================================== */
.footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gris);
    color: var(--gris-oscuro);
    font-size: 0.85rem;
}

.footer a {
    color: var(--azul-cajambre);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transicion-rapida);
}

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

/* ========================================
   11. MENSAJES DE ALERTA
   ======================================== */
.alert {
    padding: 12px 16px;
    border-radius: var(--borde-radio);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert-error {
    background: #fee2e2;
    color: #dc2626;
    border-left: 4px solid #dc2626;
}

.alert-success {
    background: #e6f4ea;
    color: #2e7d32;
    border-left: 4px solid #2e7d32;
}

.alert-info {
    background: #e6f3ff;
    color: #0984e3;
    border-left: 4px solid #0984e3;
}

.alert i {
    font-size: 1.1rem;
}

/* ========================================
   12. RECORDARME Y OPCIONES
   ======================================== */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    margin: -0.5rem 0 0.5rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gris-oscuro);
    cursor: pointer;
    user-select: none;
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--azul-cajambre);
    margin: 0;
}

.remember-me span {
    cursor: pointer;
}

.forgot-password {
    color: var(--azul-cajambre);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transicion-rapida);
}

.forgot-password:hover {
    color: var(--azul-oscuro);
    text-decoration: underline;
}

/* ========================================
   13. SEGURIDAD
   ======================================== */
.security-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: var(--gris-oscuro);
}

.security-info svg {
    width: 16px;
    height: 16px;
    fill: var(--verde-cajambre);
}

/* ========================================
   14. LOADING SPINNER
   ======================================== */
.spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--blanco);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   15. RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .login-box {
        padding: 2rem 1.5rem;
    }
    
    .logo {
        width: 80px;
        height: 80px;
    }
    
    .login-box h2 {
        font-size: 1.5rem;
    }
    
    input[type="text"],
    input[type="password"],
    input[type="email"] {
        padding: 12px 15px;
        font-size: 0.95rem;
    }
    
    .input-group input {
        padding-left: 40px;
    }
    
    button[type="submit"] {
        padding: 13px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 1.5rem 1rem;
        border-radius: var(--borde-radio-lg);
    }
    
    .logo {
        width: 70px;
        height: 70px;
    }
    
    .login-box h2 {
        font-size: 1.3rem;
    }
    
    .login-box .subtitle {
        font-size: 0.85rem;
    }
    
    .form-options {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .alert {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
}

/* ========================================
   16. ACCESIBILIDAD
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 3px solid var(--amarillo-cajambre);
    outline-offset: 2px;
    border-radius: var(--borde-radio);
}

/* ========================================
   17. MODO OSCURO (Opcional)
   ======================================== */
@media (prefers-color-scheme: dark) {
    .login-box {
        background: #2d3436;
    }
    
    .login-box h2 {
        color: var(--amarillo-cajambre);
    }
    
    .login-box .subtitle {
        color: #b2bec3;
    }
    
    input[type="text"],
    input[type="password"],
    input[type="email"] {
        background: #353b48;
        border-color: #4b5462;
        color: var(--blanco);
    }
    
    input[type="text"]:focus,
    input[type="password"]:focus,
    input[type="email"]:focus {
        background: #3d4452;
        border-color: var(--azul-cajambre);
    }
    
    input::placeholder {
        color: #b2bec3;
    }
    
    .footer {
        border-top-color: #4b5462;
        color: #b2bec3;
    }
    
    .footer a {
        color: var(--amarillo-cajambre);
    }
    
    .alert-error {
        background: #3d2525;
        color: #ff6b6b;
        border-left-color: #ff6b6b;
    }
    
    .alert-success {
        background: #253d25;
        color: #6bff6b;
        border-left-color: #6bff6b;
    }
}

/* ========================================
   18. UTILIDADES
   ======================================== */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.hidden { display: none; }
.visible { display: block; }

/* ========================================
   19. ANIMACIONES ADICIONALES
   ======================================== */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading-pulse {
    animation: pulse 1.5s ease-in-out infinite;
}

/* ========================================
   20. SCROLLBAR PERSONALIZADA
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gris-claro);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--azul-cajambre);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--azul-oscuro);
}