body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background);

    background-image: 
        radial-gradient(circle at 15% 50%, color-mix(in srgb, var(--color-primary) 12%, transparent) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, color-mix(in srgb, var(--color-accent) 12%, transparent) 0%, transparent 50%);
    background-attachment: fixed;
    font-family: var(--font-body);
    color: var(--color-foreground);
}

.login-container {
    width: 100%;
    max-width: 440px;
    padding: var(--space-xl) var(--space-md);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 10;
}

.login-card {
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--glass-shadow), 0 15px 35px rgba(0,0,0,0.1);
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--glass-shadow), 0 20px 40px rgba(0,0,0,0.15);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.login-title {
    font-size: 1.75rem;
    font-family: var(--font-heading);
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--color-foreground);
    letter-spacing: -0.02em;
}

.login-subtitle {
    font-size: 0.95rem;
    color: var(--color-foreground);
    opacity: 0.7;
    margin: 0;
}


.input-group {
    position: relative;
    margin-bottom: var(--space-lg);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 16px;
    color: var(--color-accent);
    font-size: 1.1rem;
    pointer-events: none;
    transition: color 0.3s ease;
    z-index: 2;
}

.form-control.input-with-icon {
    width: 100%;
    padding: 14px 16px 14px 48px;
    background: color-mix(in srgb, var(--color-muted) 50%, transparent);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-foreground);
    font-size: 1rem;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
    min-height: 48px;
    box-sizing: border-box;
}

.form-control.input-with-icon:focus {
    border-color: var(--color-primary);
    background: var(--glass-bg);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary) 15%, transparent);
    outline: none;
}

.form-control.input-with-icon:focus ~ .input-icon,
.form-control.input-with-icon:not(:placeholder-shown) ~ .input-icon {
    color: var(--color-primary);
}

.password-toggle {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    color: var(--color-foreground);
    opacity: 0.5;
    cursor: pointer;
    font-size: 1rem;
    padding: 8px;
    transition: opacity 0.3s ease, color 0.3s ease;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    opacity: 1;
    color: var(--color-primary);
}

.remember-forgot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--color-foreground);
    user-select: none;
}

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

.btn-login {
    width: 100%;
    padding: 14px;
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
}

.btn-login:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, color-mix(in srgb, var(--color-primary) 90%, white), var(--color-accent));
}

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


.theme-toggle-login {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--color-foreground);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--glass-shadow);
    z-index: 100;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
}


.theme-toggle.theme-toggle-login:hover,
.theme-toggle-login:hover {
    background: var(--color-muted);
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: rotate(15deg) scale(1.05);
}

.theme-toggle-login .theme-icon {
    font-size: 1.1rem;
    transition: opacity 0.3s, transform 0.5s;
    position: absolute;
}

html[data-theme="light"] .theme-toggle-login .theme-icon-moon {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

html[data-theme="dark"] .theme-toggle-login .theme-icon-sun {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


@media (max-width: 480px) {
    .login-card {
        padding: 30px 20px;
        border-radius: var(--radius-lg);
    }

    .login-container {
        padding: var(--space-md);
    }

    .theme-toggle-login {
        top: 16px;
        right: 16px;
    }
}