/*
 * File: public/assets/css/desktop/login.css
 * Description: Stylesheet for the centered admin login form.
 * Modular and responsive design for the dedicated login page.
 * LAYOUT FIX: Added overflow-x: hidden to body to prevent horizontal scrolling and far-right alignment issue.
 */

:root {
    /* Define primary colors for easy customization */
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --background-color: #f8f9fa;
    --card-bg-color: #ffffff;
    --border-color: #ced4da;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

/* Base style reset and modern box model */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--background-color);
    display: flex;
    justify-content: center; /* Center horizontally */
    align-items: center;     /* Center vertically */
    min-height: 100vh;       /* Full viewport height */
    line-height: 1.6;
    overflow-x: hidden;      /* CRITICAL FIX: Prevent horizontal scrolling/far-right alignment */
}

/* Container for the login form */
.login-container {
    width: 100%;
    max-width: 400px; /* Max width for desktop/tablet */
    padding: 20px;
}

/* The login card/form wrapper */
.login-card {
    background-color: var(--card-bg-color);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-card:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.login-card h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #343a40;
    font-weight: 600;
}

/* Form group for labels and inputs */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #495057;
}

/* Input field styling */
.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Submit button styling */
.btn-login {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
    font-weight: 600;
    margin-top: 10px;
}

.btn-login:hover {
    background-color: #0056b3;
}

.btn-login:active {
    transform: translateY(1px);
}

/* Error/Message box (hidden by default) */
.message-box {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 5px;
    text-align: center;
    font-weight: 500;
    visibility: hidden; /* Start hidden, show with JS/PHP */
}

.message-box.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    visibility: visible;
}

/* Mobile Responsiveness (Adjustments for small screens) */
@media (max-width: 500px) {
    body {
        /* Remove vertical center on very small devices to prioritize content */
        align-items: flex-start;
        padding-top: 5vh;
    }

    .login-container {
        padding: 10px;
    }

    .login-card {
        padding: 20px;
        margin: 0;
        box-shadow: none; /* Less formal look on mobile */
        border: none;
    }
}