/**
 * Post Broadcasting Public-Facing Styles
 *
 * Styles for subscription forms, unsubscribe pages, and public elements.
 * Designed to be minimal, responsive, and easily theme-overridable.
 *
 * @package    PostBroadcasting
 * @subpackage PostBroadcasting/public/css
 * @author     Joseph Collins Jr.
 * @copyright  2025 URBT News Post Broadcasting
 * @license    GPL-2.0+
 * @since      1.0.0
 */

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */

.pb-subscription-form-wrapper *,
.pb-unsubscribe-page-wrapper *,
.pb-view-campaign-wrapper *,
.pb-message * {
    box-sizing: border-box;
}

/* ==========================================================================
   Subscription Form
   ========================================================================== */

.pb-subscription-form-wrapper {
    padding: 20px;
    border: 1px solid #e1e1e1;
    border-radius: 6px;
    background-color: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    margin: 20px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

.pb-form-heading {
    margin: 0 0 20px 0;
    font-size: 1.6em;
    font-weight: 600;
    color: #23282d;
    text-align: center;
}

.pb-form-description {
    margin-bottom: 20px;
    color: #666;
    text-align: center;
    font-size: 0.95em;
}

/* Form Fields */
.pb-subscription-form .pb-form-field {
    margin-bottom: 20px;
}

.pb-subscription-form .pb-form-field:last-child {
    margin-bottom: 0;
}

.pb-subscription-form .pb-form-field label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #23282d;
    font-size: 0.95em;
}

.pb-subscription-form .pb-form-field input[type="email"],
.pb-subscription-form .pb-form-field input[type="text"] {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px; /* Prevents zoom on iOS */
    line-height: 1.4;
    color: #32373c;
    background-color: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.pb-subscription-form .pb-form-field input[type="email"]:focus,
.pb-subscription-form .pb-form-field input[type="text"]:focus {
    border-color: #007cba;
    box-shadow: 0 0 0 2px rgba(0, 124, 186, 0.2);
    outline: none;
}

.pb-subscription-form .pb-form-field input[type="email"]:disabled,
.pb-subscription-form .pb-form-field input[type="text"]:disabled {
    background-color: #f7f7f7;
    color: #999;
    cursor: not-allowed;
}

.pb-subscription-form .pb-required {
    color: #d63638;
    font-weight: normal;
    margin-left: 2px;
}

/* Category Selection */
.pb-subscription-form .pb-form-field-categories {
    margin-bottom: 20px;
}

.pb-subscription-form .pb-form-field-categories fieldset {
    border: 1px solid #e1e1e1;
    border-radius: 4px;
    padding: 15px;
    margin: 0;
    background-color: #fafafa;
}

.pb-subscription-form .pb-form-field-categories legend {
    font-weight: 600;
    padding: 0 8px;
    color: #23282d;
    font-size: 0.95em;
}

.pb-subscription-form .pb-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.pb-subscription-form .pb-category-item {
    display: flex;
    align-items: center;
    padding: 8px 0;
}

.pb-subscription-form .pb-category-item input[type="checkbox"] {
    margin: 0 8px 0 0;
    width: 16px;
    height: 16px;
    accent-color: #007cba;
}

.pb-subscription-form .pb-category-item label {
    font-weight: normal;
    margin: 0;
    cursor: pointer;
    color: #32373c;
    font-size: 0.95em;
}

.pb-subscription-form .pb-category-item:hover label {
    color: #007cba;
}

/* Submit Button */
.pb-subscription-form .pb-form-actions {
    text-align: center;
    margin-top: 25px;
}

.pb-subscription-form .pb-submit-button {
    background: linear-gradient(135deg, #007cba 0%, #005a87 100%);
    color: #ffffff;
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 140px;
    position: relative;
}

.pb-subscription-form .pb-submit-button:hover {
    background: linear-gradient(135deg, #005a87 0%, #004066 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 124, 186, 0.3);
}

.pb-subscription-form .pb-submit-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 124, 186, 0.3);
}

.pb-subscription-form .pb-submit-button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loading Spinner */
.pb-subscription-form .pb-form-spinner {
    display: inline-block;
    margin-left: 10px;
    vertical-align: middle;
}

.pb-subscription-form .pb-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #007cba;
    border-radius: 50%;
    animation: pb-spin 1s linear infinite;
}

@keyframes pb-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
   Messages & Feedback
   ========================================================================== */

.pb-message {
    padding: 15px 18px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.5;
}

.pb-message p {
    margin: 0;
}

.pb-message p + p {
    margin-top: 10px;
}

.pb-message-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.pb-message-success::before {
    content: "? ";
    font-weight: bold;
    color: #28a745;
}

.pb-message-error {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.pb-message-error::before {
    content: "? ";
    font-weight: bold;
    color: #dc3545;
}

.pb-message-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

.pb-message-info::before {
    content: "? ";
    font-weight: bold;
    color: #17a2b8;
}

/* ==========================================================================
   Unsubscribe Page
   ========================================================================== */

.pb-unsubscribe-page-wrapper {
    padding: 30px;
    border: 1px solid #e1e1e1;
    border-radius: 6px;
    background-color: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 30px auto;
    text-align: center;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    line-height: 1.6;
}

.pb-unsubscribe-page-wrapper h1,
.pb-unsubscribe-page-wrapper h2 {
    color: #23282d;
    margin-bottom: 20px;
}

.pb-unsubscribe-page-wrapper h1 {
    font-size: 1.8em;
    font-weight: 600;
}

.pb-unsubscribe-page-wrapper h2 {
    font-size: 1.4em;
    font-weight: 500;
}

.pb-unsubscribe-page-wrapper p {
    color: #666;
    margin-bottom: 15px;
    font-size: 15px;
}

.pb-unsubscribe-actions {
    margin-top: 30px;
}

.pb-unsubscribe-actions .pb-button {
    margin: 0 10px 10px 10px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.pb-button,
a.pb-button {
    display: inline-block;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    padding: 10px 18px;
    cursor: pointer;
    border: 1px solid;
    border-radius: 4px;
    white-space: nowrap;
    transition: all 0.2s ease;
    text-align: center;
    vertical-align: middle;
}

.pb-button-primary,
a.pb-button-primary {
    background: #007cba;
    border-color: #007cba;
    color: #ffffff;
}

.pb-button-primary:hover,
a.pb-button-primary:hover,
.pb-button-primary:focus,
a.pb-button-primary:focus {
    background: #005a87;
    border-color: #005a87;
    color: #ffffff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 124, 186, 0.3);
}

.pb-button-secondary,
a.pb-button-secondary {
    background: #ffffff;
    border-color: #007cba;
    color: #007cba;
}

.pb-button-secondary:hover,
a.pb-button-secondary:hover,
.pb-button-secondary:focus,
a.pb-button-secondary:focus {
    background: #f0f8ff;
    border-color: #005a87;
    color: #005a87;
    text-decoration: none;
}

.pb-button-danger,
a.pb-button-danger {
    background: #d63638;
    border-color: #d63638;
    color: #ffffff;
}

.pb-button-danger:hover,
a.pb-button-danger:hover,
.pb-button-danger:focus,
a.pb-button-danger:focus {
    background: #b32d2e;
    border-color: #b32d2e;
    color: #ffffff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(214, 54, 56, 0.3);
}

/* ==========================================================================
   View Campaign (Email in Browser)
   ========================================================================== */

.pb-view-campaign-wrapper {
    margin: 20px auto;
    padding: 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #fff;
    max-width: 800px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.pb-view-campaign-header {
    background: #f8f9fa;
    padding: 15px 20px;
    border-bottom: 1px solid #e1e1e1;
    text-align: center;
    font-size: 13px;
    color: #666;
}

.pb-view-campaign-content {
    /* Email content styles will be inline, this just provides a container */
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 600px) {
    .pb-subscription-form-wrapper,
    .pb-unsubscribe-page-wrapper {
        margin: 15px;
        padding: 20px 15px;
    }
    
    .pb-form-heading {
        font-size: 1.4em;
    }
    
    .pb-subscription-form .pb-categories-grid {
        grid-template-columns: 1fr;
        gap: 5px;
    }
    
    .pb-subscription-form .pb-submit-button {
        width: 100%;
        padding: 14px 24px;
    }
    
    .pb-unsubscribe-actions .pb-button {
        display: block;
        width: 100%;
        margin: 0 0 10px 0;
    }
    
    .pb-view-campaign-wrapper {
        margin: 10px;
    }
}

@media (max-width: 400px) {
    .pb-subscription-form-wrapper,
    .pb-unsubscribe-page-wrapper {
        margin: 10px;
        padding: 15px;
    }
    
    .pb-form-heading {
        font-size: 1.3em;
    }
}

/* ==========================================================================
   Accessibility & High Contrast
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .pb-subscription-form .pb-submit-button,
    .pb-button,
    a.pb-button,
    .pb-subscription-form .pb-form-field input {
        transition: none;
    }
    
    .pb-spinner {
        animation: none;
    }
}

@media (prefers-contrast: high) {
    .pb-subscription-form-wrapper,
    .pb-unsubscribe-page-wrapper {
        border-width: 2px;
    }
    
    .pb-message {
        border-width: 2px;
    }
}

/* Focus indicators for keyboard navigation */
.pb-subscription-form .pb-category-item input[type="checkbox"]:focus {
    outline: 2px solid #007cba;
    outline-offset: 2px;
}

.pb-button:focus,
a.pb-button:focus {
    outline: 2px solid #007cba;
    outline-offset: 2px;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .pb-subscription-form .pb-submit-button,
    .pb-unsubscribe-actions {
        display: none;
    }
    
    .pb-subscription-form-wrapper,
    .pb-unsubscribe-page-wrapper {
        box-shadow: none;
        border: 1px solid #000;
    }
}