* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

/* Fondo animado con orbes de gradiente */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #010113;
    overflow: hidden;
    z-index: -1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 8s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #52FF88 0%, #01F8D1 100%);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #01F8D1 0%, #52FF88 100%);
    bottom: -150px;
    right: -150px;
    animation-delay: 2s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, #52FF88 0%, #01F8D1 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* Contenedor principal */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

/* Tarjeta de login con efecto glassmorphism */
.login-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 24px;
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        0 2px 8px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    animation: slideUp 0.6s ease-out;
}

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

/* Logo */
.logo {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.logo-img {
    height: 60px;
    width: auto;
    background: rgba(255, 255, 255, 0.95);
    padding: 10px;
    border-radius: 12px;
    object-fit: contain;
}

/* Título */
.title {
    color: #ffffff;
    font-size: 32px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    text-align: center;
    margin-bottom: 32px;
    font-weight: 400;
}

/* Formulario */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
    padding-left: 4px;
}

.input-group input {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    padding: 14px 16px;
    font-size: 15px;
    color: #ffffff;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

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

.input-group input:focus {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
}

/* Opciones */
.options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4px;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
}

.checkbox-container input[type="checkbox"] {
    appearance: none;
    width: 18px;
    height: 18px;
    background: rgba(255, 255, 255, 0.2);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    border-radius: 5px;
    cursor: pointer;
    position: relative;
    transition: all 0.2s ease;
}

.checkbox-container input[type="checkbox"]:checked {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.9);
}

.checkbox-container input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #010113;
    font-size: 12px;
    font-weight: bold;
}

.checkbox-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
}

.forgot-password {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    text-decoration: none;
    transition: color 0.2s ease;
}

.forgot-password:hover {
    color: #ffffff;
}

/* Botón de login */
.login-button {
    background: #52FF88;
    color: #010113;
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
    box-shadow: 0 4px 16px rgba(82, 255, 136, 0.3);
}

.login-button:hover {
    background: #01F8D1;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(1, 248, 209, 0.4);
}

.login-button:active {
    transform: translateY(0);
}

/* Divisor */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 28px 0;
    position: relative;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.25);
}

.divider span {
    padding: 0 16px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    font-weight: 500;
}

/* Botones sociales */
.social-login {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.social-button {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    padding: 12px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #ffffff;
}

.social-button:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.social-button:active {
    transform: translateY(0);
}

.social-button svg {
    flex-shrink: 0;
}

/* Link de registro */
.signup-link {
    text-align: center;
    margin-top: 24px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.signup-link a {
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.signup-link a:hover {
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 36px 28px;
    }
    
    .title {
        font-size: 28px;
    }
    
    .subtitle {
        font-size: 14px;
    }
}

/* Firma de desarrollo */
.dev-signature {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.dev-signature:hover {
    opacity: 1;
}

.dev-signature a {
    text-decoration: none;
    color: inherit;
    display: inline-block;
}

.dev-signature img {
    height: 16px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

@media (max-width: 480px) {
    .dev-signature {
        bottom: 16px;
    }
    
    .dev-signature img {
        height: 14px;
    }
}