/* =====================================================
   LOGIN PAGE STYLES
   Standalone login page using theme_variables.css
   ===================================================== */

/* Body — gradient background, full viewport centering */
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: var(--body-bg-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Centering wrapper */
.login-container {
    width: 100%;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

/* Card */
.login-card {
    background: var(--container-bg-color);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-sizing: border-box;
}

/* Logo — light/dark switching */
.login-logo {
    text-align: center;
    margin-bottom: 10px;
}

.login-logo img {
    width: 200px;
    height: auto;
}

.logo-light {
    display: block;
    margin: 0 auto;
}

.logo-dark {
    display: none;
    margin: 0 auto;
}

html[data-theme='dark'] .logo-light {
    display: none;
}

html[data-theme='dark'] .logo-dark {
    display: block;
}

@media (prefers-color-scheme: dark) {
    html[data-theme='auto'] .logo-light {
        display: none;
    }

    html[data-theme='auto'] .logo-dark {
        display: block;
    }
}

/* Title */
.login-title {
    text-align: center;
    color: var(--text-header-color);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 10px;
}

/* Theme switcher — centered below title */
.login-card .theme-switcher {
    margin: 0 0 25px;
}

/* Error messages */
.login-errors {
    background: var(--alert-danger-bg-color);
    color: var(--alert-danger-text-color);
    border: 1px solid var(--alert-danger-border-color);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 20px;
    font-size: 0.875rem;
    line-height: 1.5;
}

.login-errors p {
    margin: 0;
}

.login-errors p + p {
    margin-top: 4px;
}

/* Form group */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    color: var(--text-secondary-color);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid var(--form-border-color);
    border-radius: 10px;
    background: var(--form-bg-color);
    color: var(--form-text-color);
    font-size: 1rem;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input::placeholder {
    color: var(--form-placeholder-color);
}

.form-group input:focus {
    outline: none;
    border-color: var(--form-focus-border-color);
    box-shadow: 0 0 0 3px rgba(58, 141, 222, 0.15);
}

/* Submit button */
.login-submit {
    width: 100%;
    padding: 14px;
    margin-top: 8px;
    border: none;
    border-radius: 10px;
    background: var(--primary-button-bg);
    color: var(--primary-button-text);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 15px var(--button-shadow-color);
}

.login-submit:hover {
    background: var(--primary-button-hover-bg);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--button-shadow-color);
}

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

/* Install button */
.login-install-btn {
    width: 100%;
    padding: 12px;
    margin-top: 12px;
    border: 2px solid var(--form-border-color);
    border-radius: 10px;
    background: var(--form-bg-color);
    color: var(--text-secondary-color);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.login-install-btn:hover {
    background: var(--form-focus-border-color);
    border-color: var(--form-focus-border-color);
    color: white;
    transform: translateY(-2px);
}

/* Responsive — smaller screens */
@media (max-width: 480px) {
    .login-card {
        padding: 30px 20px;
        border-radius: 16px;
    }

    .login-logo img {
        width: 160px;
    }

    .login-title {
        font-size: 1.25rem;
    }
}