/* Shared variables - ensure these match or are sourced from your main styles.css */
:root {
    --primary-color: #3498db; /* GISTDA Blue (หรือสีหลักของคุณ) */
    --primary-dark-color: #2980b9; /* Darker shade of primary */
    --focus-ring-color: rgba(52, 152, 219, 0.3); /* Softer, transparent primary for focus ring */
    --primary-light-color-alt: #eaf6fd; /* Very light primary for subtle hover */

    --accent-color: #28a745; /* Green for action buttons */
    --accent-dark-color: #218838; /* Darker green for hover */

    --text-color: #333333;
    --text-muted-color: #777777;
    --text-color-strong: #000000; /* For strong headings/labels */

    --background-color: #f4f7f6; /* Lighter background for body */
    --background-color-light: #fdfdfd; /* For tab switcher background or slight gradient */
    --card-background-color: #ffffff;
    --input-background-color: #f8f8f8; /* Light background for input fields */
    --input-background-focus-color: #ffffff; /* White background on focus */

    --border-color: #e0e0e0;
    --border-color-light: #f0f0f0; /* Lighter border for social separator */
    --hover-background-color-subtle: #f0f4f7; /* For subtle hover on inactive tabs */

    --button-text-color: #ffffff; /* White text on primary buttons */

    /* Shadows (Adjust these for desired depth) */
    --shadow-tiny: rgba(0, 0, 0, 0.05) 0px 1px 2px 0px;
    --shadow-small: rgba(0, 0, 0, 0.1) 0px 4px 6px -1px, rgba(0, 0, 0, 0.06) 0px 2px 4px -1px;
    --shadow-medium: rgba(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.05) 0px 4px 6px -2px;
    --shadow-large: rgba(0, 0, 0, 0.1) 0px 20px 25px -5px, rgba(0, 0, 0, 0.04) 0px 10px 10px -5px;

    /* Status Colors */
    --success-background: #e6ffe6;
    --success-text: #28a745;
    --success-border: #4caf50;

    --error-background: #ffe6e6;
    --error-text: #dc3545;
    --error-border: #f44336;

    --info-background: #e0f2f7; /* Light blue for info */
    --info-text: #2196f3; /* Blue for info text */
    --info-border: #bbdefb; /* Lighter blue border */
}

/* Dark Mode Overrides */
body.dark {
    background-color: var(--dark-background-color);
    color: var(--dark-text-color);

    /* Dark Mode Specific Variables */
    --dark-background-color: #1a1a1a;
    --dark-background-color-light: #222222; /* For subtle gradient in dark mode */
    --dark-card-background-color: #2c2c2c;
    --dark-input-background-color: #3a3a3a;
    --dark-input-background-focus-color: #4a4a4a;

    --dark-text-color: #e0e0e0;
    --dark-text-muted-color: #aaaaaa;
    --dark-text-color-strong: #ffffff;

    --dark-border-color: #444444;
    --dark-border-color-light: #333333;

    --button-primary-dark: #4a90e2; /* Lighter blue for primary in dark mode */
    --dark-focus-ring-color: rgba(74, 144, 226, 0.3);
    --primary-light-color-alt-dark: #3a3f44; /* Darker hover for social buttons */

    --dark-hover-background-color-subtle: #353535;

    /* Dark Mode Shadows (Adjust these for desired depth) */
    --dark-shadow-tiny: rgba(255, 255, 255, 0.05) 0px 1px 2px 0px;
    --dark-shadow-small: rgba(255, 255, 255, 0.1) 0px 4px 6px -1px, rgba(255, 255, 255, 0.06) 0px 2px 4px -1px;
    --dark-shadow-medium: rgba(255, 255, 255, 0.1) 0px 10px 15px -3px, rgba(255, 255, 255, 0.05) 0px 4px 6px -2px;
    --dark-shadow-large: rgba(255, 255, 255, 0.1) 0px 20px 25px -5px, rgba(255, 255, 255, 0.04) 0px 10px 10px -5px;

    /* Dark Mode Status Colors */
    --dark-success-background: #1e3a24;
    --dark-success-text: #73e68f;
    --dark-success-border: #4caf50;

    --dark-error-background: #3a1e20;
    --dark-error-text: #e67373;
    --dark-error-border: #f44336;

    --dark-info-background: #1a2e3a;
    --dark-info-text: #73b3e6;
    --dark-info-border: #4a90e2;
}

/* login-styles.css overrides/additions */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--background-color);
    padding: 20px;
    box-sizing: border-box;
    transition: background-color 0.3s ease;
}

.auth-container {
    background-color: var(--card-background-color);
    border-radius: 12px;
    box-shadow: var(--shadow-large);
    padding: 30px 40px;
    width: 100%;
    max-width: 900px; /* Wider to accommodate registration form */
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
body.dark .auth-container {
    background-color: var(--dark-card-background-color);
    box-shadow: var(--dark-shadow-large);
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header .logo-link {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    margin-bottom: 15px;
}

/* แก้ไขส่วนนี้: ปรับโลโก้ให้ไม่บีบอัด */
.auth-logo {
    max-width: 50px; /* จำกัดความกว้างสูงสุด */
    height: auto;    /* สำคัญ: ให้ความสูงปรับตามสัดส่วน */
    object-fit: contain; /* รักษาสัดส่วนของรูปภาพ */
    margin-right: 15px;
}

.auth-header h1 {
    font-size: 1.8em;
    color: var(--primary-color);
    margin: 0;
    font-weight: 700;
}
body.dark .auth-header h1 {
    color: var(--button-primary-dark);
}

.auth-header p {
    font-size: 1em;
    color: var(--text-muted-color);
    margin-top: 10px;
}

.tab-switcher {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 5px;
}
body.dark .tab-switcher {
    border-bottom-color: var(--dark-border-color);
}

.tab-switcher button {
    background: none;
    border: none;
    padding: 12px 25px;
    font-size: 1.1em;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-muted-color); /* กำหนดสีข้อความปกติสำหรับปุ่ม inactive */
    transition: color 0.3s ease, border-bottom 0.3s ease;
    position: relative;
    outline: none;
    /* ลบ opacity: 1; ออกจากตรงนี้ เพราะต้องการให้ active เป็นตัวกำหนดสี */
}

.tab-switcher button.active {
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
}
body.dark .tab-switcher button.active {
    color: var(--button-primary-dark);
    border-bottom-color: var(--button-primary-dark);
}

.tab-switcher button:hover:not(.active) {
    color: var(--text-color); /* เมื่อเมาส์โอเวอร์ ให้สีเข้มขึ้น */
}
body.dark .tab-switcher button:hover:not(.active) {
    color: var(--dark-text-color);
}

/* แก้ไขส่วนนี้: ทำให้ข้อความไม่หายไปเมื่อโฟกัสหรือ Active */
/* เนื่องจากปุ่ม active มีสีของตัวเองอยู่แล้ว ไม่จำเป็นต้องกำหนดซ้ำตรงนี้
   และถ้าเป็นปุ่ม inactive ที่ถูก focus ควรจะยังเห็นข้อความปกติ */
.tab-switcher button:focus:not(.active) {
    color: var(--text-color); /* ให้สีตัวอักษรเป็นสีปกติเมื่อ inactive แต่ถูก focus */
    outline: 2px dashed var(--focus-ring-color); /* เพิ่ม visual cue สำหรับ focus */
    outline-offset: 2px; /* เพิ่มระยะห่างจากขอบปุ่ม */
}
body.dark .tab-switcher button:focus:not(.active) {
    color: var(--dark-text-color);
    outline-color: var(--dark-focus-ring-color);
}
/* ไม่จำเป็นต้องมี .tab-switcher button:active เพิ่มเติม เพราะ active class จะจัดการสีหลักอยู่แล้ว */


.form-section {
    display: none;
}

.form-section.active {
    display: block;
}

/* --- Custom styles for Registration Form similar to register.php --- */
.register-form-content {
    display: flex;
    flex-wrap: wrap;
    gap: 20px; /* Space between fieldset-like containers */
    margin-top: 20px;
}

.form-fieldset { /* This class is now used on divs within registerForm */
    flex: 1; /* Allow fieldsets to grow and shrink */
    min-width: 380px; /* Minimum width before wrapping */
    background-color: var(--background-color-light); /* Lighter background for inner sections */
    border-radius: 10px;
    box-shadow: var(--shadow-tiny);
    padding: 25px;
    border: 1px solid var(--border-color);
    box-sizing: border-box; /* Important for flex layout */
}
body.dark .form-fieldset {
    background-color: var(--dark-background-color-light);
    border-color: var(--dark-border-color);
    box-shadow: var(--dark-shadow-tiny);
}

.fieldset-title {
    font-size: 1.5em;
    color: var(--primary-color);
    font-weight: 600;
    padding: 0 10px;
    margin-bottom: 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    /* No need for width: auto; margin-left: auto; margin-right: auto; */
}
body.dark .fieldset-title {
    color: var(--button-primary-dark);
    border-bottom-color: var(--dark-border-color);
}


.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color-strong);
    font-size: 0.95em;
}

.form-group label.required::after {
    content: ' *';
    color: var(--error-text);
    font-weight: bold;
    margin-left: 3px;
}

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

.input-with-icon .input-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted-color);
    font-size: 1.3em;
    z-index: 1; /* Ensure icon is above input */
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea {
    width: 100%;
    padding: 12px 15px 12px 45px; /* Adjust padding for icon */
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1em;
    color: var(--text-color);
    background-color: var(--input-background-color);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    box-sizing: border-box;
}
.form-group textarea {
    padding: 12px 15px; /* Textarea doesn't need icon padding */
}

body.dark .form-group input, body.dark .form-group textarea {
    background-color: var(--dark-input-background-color);
    border-color: var(--dark-border-color);
    color: var(--dark-text-color);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--focus-ring-color);
    background-color: var(--input-background-focus-color);
    outline: none;
}
body.dark .form-group input:focus, body.dark .form-group textarea:focus {
    border-color: var(--button-primary-dark);
    box-shadow: 0 0 0 3px var(--dark-focus-ring-color);
    background-color: var(--dark-input-background-focus-color);
}

.password-toggle {
    position: absolute;
    right: 15px;
    cursor: pointer;
    color: var(--text-muted-color);
    font-size: 1.3em;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 25px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    font-size: 0.95em;
    color: var(--text-muted-color);
}

.checkbox-group input[type="checkbox"] {
    margin-right: 8px;
    transform: scale(1.1);
    accent-color: var(--primary-color); /* Style checkbox */
}

.checkbox-group label {
    margin-bottom: 0; /* Override default label margin */
    font-weight: normal;
    color: inherit; /* Inherit color from parent */
}

.forgot-password-link, .terms-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9em;
    transition: color 0.3s ease;
}

.forgot-password-link:hover, .terms-link:hover {
    color: var(--primary-dark-color);
    text-decoration: underline;
}
body.dark .forgot-password-link, body.dark .terms-link {
    color: var(--button-primary-dark);
}
body.dark .forgot-password-link:hover, body.dark .terms-link:hover {
    color: #7abaff; /* Slightly lighter for dark hover */
}

.auth-button {
    width: 100%;
    padding: 12px 20px;
    background-color: var(--primary-color);
    color: var(--button-text-color);
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: var(--shadow-small);
    margin-top: 25px;
}

.auth-button:hover {
    background-color: var(--primary-dark-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}
body.dark .auth-button {
    background-color: var(--button-primary-dark);
}
body.dark .auth-button:hover {
    background-color: #6a9ee8; /* Slightly lighter for dark hover */
}

.auth-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.auth-message {
    margin-top: 20px;
    padding: 12px 15px;
    border-radius: 8px;
    font-size: 0.95em;
    text-align: center;
    display: none; /* Hidden by default, shown by JS */
    align-items: center; /* For icon alignment */
    justify-content: center;
    transition: opacity 0.3s ease;
    opacity: 0;
}

.auth-message.success {
    background-color: var(--success-background);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}
body.dark .auth-message.success {
    background-color: var(--dark-success-background);
    color: var(--dark-success-text);
    border-color: var(--dark-success-border);
}

.auth-message.error {
    background-color: var(--error-background);
    color: var(--error-text);
    border: 1px solid var(--error-border);
}
body.dark .auth-message.error {
    background-color: var(--dark-error-background);
    color: var(--dark-error-text);
    border-color: var(--dark-error-border);
}

.auth-message.info {
    background-color: var(--info-background);
    color: var(--info-text);
    border: 1px solid var(--info-border);
}
body.dark .auth-message.info {
    background-color: var(--dark-info-background);
    color: var(--dark-info-text);
    border-color: var(--dark-info-border);
}

.auth-message .message-icon {
    margin-right: 8px;
    font-size: 1.2em;
}

.social-login {
    text-align: center;
    margin-top: 30px;
    border-top: 1px solid var(--border-color-light);
    padding-top: 20px;
}
body.dark .social-login {
    border-top-color: var(--dark-border-color-light);
}

.social-login p {
    color: var(--text-muted-color);
    font-size: 0.9em;
    margin-bottom: 15px;
}

.social-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--background-color-light);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-tiny);
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
body.dark .social-button {
    background-color: var(--dark-background-color-light);
    border-color: var(--dark-border-color);
    box-shadow: var(--dark-shadow-tiny);
}

.social-button:hover {
    background-color: var(--hover-background-color-subtle);
    border-color: var(--primary-light-color-alt);
    box-shadow: var(--shadow-small);
}
body.dark .social-button:hover {
    background-color: var(--dark-hover-background-color-subtle);
    border-color: var(--primary-light-color-alt-dark);
    box-shadow: var(--dark-shadow-small);
}

.social-button img {
    width: 24px;
    height: 24px;
}

.login-back-home {
    text-align: center;
    margin-top: 30px;
    font-size: 0.9em;
}

.login-back-home a {
    color: var(--text-muted-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: color 0.3s ease;
}

.login-back-home a:hover {
    color: var(--primary-color);
}
body.dark .login-back-home a:hover {
    color: var(--button-primary-dark);
}

.login-back-home .material-icons-outlined {
    margin-right: 5px;
    font-size: 1.1em;
}

/* --- New styles for specific registration form elements (from register.php) --- */
.info-message {
    color: var(--text-muted-color);
    font-size: 0.85em;
    margin-top: 5px;
    font-style: italic;
    display: block; /* Ensure it takes full width */
}

.error-message {
    color: var(--error-text);
    font-size: 0.85em;
    margin-top: 5px;
    display: block;
}
.password-match-message {
    font-size: 0.85em;
    margin-top: 5px;
}
.password-match-message.match {
    color: var(--success-text);
}
.password-match-message.no-match {
    color: var(--error-text);
}

.radio-group label {
    display: flex;
    align-items: flex-start;
    margin-bottom: 8px;
    font-weight: normal; /* Override strong from form-group label */
    font-size: 0.95em;
    color: var(--text-color); /* Match regular text color */
}
.radio-group label input[type="radio"] {
    margin-right: 10px;
    margin-top: 3px; /* Align with text baseline */
    flex-shrink: 0; /* Prevent radio button from shrinking */
    accent-color: var(--primary-color);
}
.radio-group input[type="text"] {
    margin-top: 5px;
    margin-left: 30px; /* Indent to align with radio option text */
    width: calc(100% - 30px);
    padding-left: 15px; /* No icon here */
}
body.dark .radio-group label {
    color: var(--dark-text-color);
}

.tax-invoice-info-note {
    text-align: center;
    margin-bottom: 20px;
    font-size: 0.9em;
    color: var(--text-muted-color);
    padding: 10px;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
}
.tax-invoice-info-note strong {
    color: var(--primary-color);
}
.tax-invoice-info-note span.material-icons-outlined {
    font-size: 1.1em;
    vertical-align: middle;
    margin-right: 5px;
}
body.dark .tax-invoice-info-note {
    border-color: var(--dark-border-color);
}
body.dark .tax-invoice-info-note strong {
    color: var(--button-primary-dark);
}

.pdpa-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center; /* Center the content */
}
body.dark .pdpa-section {
    border-top-color: var(--dark-border-color);
}

.pdpa-section p {
    font-size: 0.9em;
    color: var(--text-muted-color);
    margin-bottom: 15px;
}
.pdpa-section .pdpa-options {
    display: flex;
    justify-content: center; /* Center the radio buttons */
    gap: 25px; /* Space between options */
    margin-top: 15px;
}
.pdpa-section .pdpa-options label {
    display: inline-flex;
    align-items: center;
    font-weight: normal;
    font-size: 0.95em;
    cursor: pointer;
    color: var(--text-color);
}
.pdpa-section .pdpa-options input[type="radio"] {
    margin-right: 8px;
    transform: scale(1.1);
    accent-color: var(--primary-color);
}
.pdpa-section .pdpa-options a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}
.pdpa-section .pdpa-options a:hover {
    color: var(--primary-dark-color);
    text-decoration: underline;
}
body.dark .pdpa-section .pdpa-options label {
    color: var(--dark-text-color);
}
body.dark .pdpa-section .pdpa-options a {
    color: var(--button-primary-dark);
}
body.dark .pdpa-section .pdpa-options a:hover {
    color: #7abaff;
}

.recaptcha-container {
    display: flex;
    justify-content: center;
    margin-top: 25px;
    margin-bottom: 25px;
}

/* Profile picture section (simplified for HTML-only version) */
.profile-pic-section {
    text-align: center;
    margin-bottom: 20px;
}
.profile-pic-section #upload-demo { /* Croppie container */
    height: 200px;
    width: 200px; /* Fixed size for demo */
    margin: 0 auto 15px auto;
    background-color: var(--background-color);
    border-radius: 50%; /* Circle for profile pic */
    border: 1px solid var(--border-color);
    overflow: hidden; /* Croppie will handle actual image display */
    display: flex; /* To center content within */
    align-items: center;
    justify-content: center;
    position: relative; /* For Croppie */
}
body.dark .profile-pic-section #upload-demo {
    background-color: var(--dark-input-background-color);
    border-color: var(--dark-border-color);
}
/* Placeholder for profile pic if no Croppie */
.profile-pic-placeholder {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background-color: var(--input-background-color);
    border: 1px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted-color);
    font-size: 0.9em;
    text-align: center;
    margin: 0 auto 15px auto;
}
body.dark .profile-pic-placeholder {
    background-color: var(--dark-input-background-color);
    border-color: var(--dark-border-color);
    color: var(--dark-text-muted-color);
}

.profile-pic-section .btn-primary { /* Style for "เลือกรูปภาพ" button */
    display: inline-block;
    padding: 8px 15px;
    background-color: var(--primary-color);
    color: var(--button-text-color);
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-right: 10px;
    font-size: 0.9em;
}
.profile-pic-section .btn-primary:hover {
    background-color: var(--primary-dark-color);
}
body.dark .profile-pic-section .btn-primary {
    background-color: var(--button-primary-dark);
}
body.dark .profile-pic-section .btn-primary:hover {
    background-color: #6a9ee8;
}

.profile-pic-section .btn-default { /* Style for "บันทึกรูปภาพ" button */
    padding: 8px 15px;
    background-color: var(--background-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    font-size: 0.9em;
}
.profile-pic-section .btn-default:hover {
    background-color: var(--border-color);
}
body.dark .profile-pic-section .btn-default {
    background-color: var(--dark-background-color-light);
    border-color: var(--dark-border-color);
    color: var(--dark-text-color);
}
body.dark .profile-pic-section .btn-default:hover {
    background-color: var(--dark-border-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .auth-container {
        padding: 25px 25px;
        max-width: 95%;
    }
    .auth-header h1 {
        font-size: 1.6em;
    }
    .tab-switcher button {
        padding: 10px 15px;
        font-size: 1em;
    }
    .register-form-content {
        flex-direction: column;
        gap: 15px;
    }
    .form-fieldset {
        min-width: unset;
        padding: 20px;
    }
    .fieldset-title {
        font-size: 1.3em;
        margin-bottom: 15px;
    }
    .form-group label {
        font-size: 0.9em;
    }
    .form-group input,
    .form-group textarea {
        padding: 10px 12px 10px 40px; /* Adjust padding for icon */
        font-size: 0.9em;
    }
    .form-group textarea {
        padding: 10px 12px;
    }
    .auth-button {
        font-size: 1em;
        padding: 10px 15px;
    }
    .social-buttons {
        flex-direction: column;
        gap: 10px;
    }
    .social-button {
        width: 100%;
        border-radius: 8px;
    }
    .pdpa-section .pdpa-options {
        flex-direction: column;
        gap: 10px;
    }
    .pdpa-section .pdpa-options label {
        margin: 0;
    }
}

@media (max-width: 480px) {
    .auth-container {
        padding: 20px;
    }
    .auth-header h1 {
        font-size: 1.4em;
    }
    .auth-logo {
        width: 40px;
        height: auto; /* รักษาอัตราส่วน */
        margin-right: 10px;
    }
    .tab-switcher button {
        font-size: 0.9em;
    }
    .fieldset-title {
        font-size: 1.2em;
    }
    .form-group input,
    .form-group textarea {
        font-size: 0.85em;
        padding: 8px 10px 8px 35px;
    }
    .form-group textarea {
        padding: 8px 10px;
    }
}