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

body {
    font-family: 'Inter', sans-serif;
    background: radial-gradient(circle at center, var(--bg-card) 0%, var(--bg-dark) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    color: var(--text-primary);
}

.login-container {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--shadow);
    max-width: 450px;
    width: 100%;
    padding: 40px;
    animation: fadeIn 0.6s ease;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo {
    text-align: center;
    margin-bottom: 35px;
}

.logo h1 {
    font-family: 'Outfit', sans-serif;
    background: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 2.2em;
    margin-bottom: 8px;
}

.logo p {
    color: var(--text-secondary);
    font-size: 0.9em;
    letter-spacing: 1px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9em;
}

.form-group input {
    width: 100%;
    padding: 14px 18px;
    background-color: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 1em;
    color: var(--text-primary);
    transition: 0.3s;
    outline: none;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background: var(--input-focus-bg);
}

.btn-login {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #38bdf8 0%, #3b82f6 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 10px 15px -3px rgba(56, 189, 248, 0.3);
    margin-top: 10px;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(56, 189, 248, 0.4);
}

.alert {
    padding: 14px;
    border-radius: 12px;
    margin-bottom: 25px;
    display: none;
    font-size: 0.9rem;
    border-left: 4px solid #ef4444;
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
}

.links {
    text-align: center;
    margin-top: 30px;
}

.links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85em;
    transition: 0.3s;
    display: block;
    margin-bottom: 10px;
}

.links a:hover {
    color: var(--text-primary);
}

/* Sprint 14: paridad con login.css */
.form-group input.error {
    border-color: #ef4444;
    background-color: rgba(239, 68, 68, 0.05);
}

.error-message {
    display: none;
    color: #f87171;
    font-size: 0.85em;
    margin-top: 8px;
    padding: 10px 14px;
    background-color: rgba(239, 68, 68, 0.1);
    border-radius: 8px;
    border-left: 3px solid #ef4444;
}

.error-message.show {
    display: block;
    animation: shake 0.4s ease;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

.btn-login:disabled {
    background: var(--border);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

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

.alert.show {
    display: block;
    animation: fadeIn 0.4s ease;
}

.password-toggle {
    position: relative;
}

.password-toggle .toggle-btn {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1.25em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle .toggle-btn:hover {
    color: var(--text-primary);
}

@media (max-width: 480px) {
    .login-container {
        padding: 35px 25px;
    }

    .logo h1 {
        font-size: 1.8em;
    }
}