/* ====================================
   RESET Y BASE STYLES
   ==================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-image: url('../fondo_gestor_.png');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

/* ====================================
   CONTENEDOR PRINCIPAL
   ==================================== */
.login-container {
    background: rgba(255, 255, 255, 0.96);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    animation: slideIn 0.6s ease-out;
    position: relative;
}

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

/* ====================================
   HEADER DEL LOGIN
   ==================================== */
.login-header {
    text-align: center;
    margin-bottom: 35px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.login-header img {
    width: 80px;
    height: 73px;
    margin-bottom: 15px;
    transition: transform 0.3s ease;
}

.login-header img:hover {
    transform: scale(1.05);
}

.login-header h1 {
    color: #2c3e50;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: #7f8c8d;
    font-size: 15px;
    font-weight: 400;
}

/* ====================================
   FORMULARIO
   ==================================== */
.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    width: 100%;
    padding: 15px 18px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 400;
    transition: all 0.3s ease;
    background-color: #fff;
}

.form-group input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 4px rgba(52, 152, 219, 0.15);
    transform: translateY(-1px);
}

.form-group input::placeholder {
    color: #bdc3c7;
    font-weight: 400;
}

/* ====================================
   TOGGLE PASSWORD
   ==================================== */
.password-toggle {
    position: absolute;
    right: 15px;
    top: 44px;
    cursor: pointer;
    width: 24px;
    height: 24px;
    background-image: url('../../comunes/iconos/eyeLog.png');
    background-size: contain;
    background-repeat: no-repeat;
    transition: opacity 0.3s ease;
    opacity: 0.6;
}

.password-toggle:hover {
    opacity: 1;
}

.password-toggle.visible {
    background-image: url('../../comunes/iconos/eyeLogVisible.png');
    opacity: 1;
}

/* ====================================
   BOTONES
   ==================================== */
.btn {
    width: 100%;
    padding: 16px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn::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;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2980b9, #1f618d);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, #95a5a6, #7f8c8d);
    color: white;
    box-shadow: 0 4px 15px rgba(149, 165, 166, 0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #7f8c8d, #6c7b7d);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(149, 165, 166, 0.4);
}

.btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn:disabled::before {
    display: none;
}

/* ====================================
   MENSAJES
   ==================================== */
.error-message {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    display: none;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.loading {
    display: none;
    text-align: center;
    padding: 30px 20px;
    color: #3498db;
}

.loading p {
    margin-top: 15px;
    font-weight: 500;
    font-size: 16px;
}

/* ====================================
   SPINNER DE CARGA
   ==================================== */
.spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto;
    border: 4px solid #ecf0f1;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ====================================
   FOOTER
   ==================================== */
.login-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #ecf0f1;
}

.login-footer p {
    color: #95a5a6;
    font-size: 13px;
    font-weight: 400;
}

/* ====================================
   RECAPTCHA
   ==================================== */
.grecaptcha-badge {
    display: none !important;
}

/* ====================================
   RESPONSIVE
   ==================================== */
@media (max-width: 480px) {
    .login-container {
        margin: 20px;
        padding: 30px 25px;
        max-width: none;
    }
    
    .login-header h1 {
        font-size: 24px;
    }
    
    .form-group input {
        padding: 12px 15px;
        font-size: 15px;
    }
    
    .btn {
        padding: 14px 18px;
        font-size: 15px;
    }
}

@media (max-height: 600px) {
    body {
        align-items: flex-start;
        padding: 20px 0;
    }
    
    .login-container {
        margin-top: 20px;
    }
}

/* ====================================
   TRANSICIONES Y ANIMACIONES
   ==================================== */
.form-group input,
.btn,
.password-toggle {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Estados de hover mejorados */
.form-group input:hover {
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

/* Animación de aparición para mensajes de error */
.error-message.show {
    display: block;
    animation: fadeInDown 0.4s ease-out;
}

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