:root {
    --primary-color: #0066cc;
    --danger-color: #cc3333;
    --bg-color: #f4f6f9;
    --card-bg: #ffffff;
    --text-color: #333333;
    --border-color: #cccccc;
    --nav-bg: #e2e8f0;
    --intro-bg: #eaf2fc;
    --intro-text: #5a6b85;
}

[data-theme="dark"] {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --border-color: #383838;
    --nav-bg: #2d3748;
    --intro-bg: #1a2635;
    --intro-text: #a0aec0;
}

body {
    font-family: 'Nyala', 'Kefa', 'Abyssinica SIL', system-ui, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.skip-link {
    position: absolute;
    top: -80px;
    left: 8px;
    background: var(--primary-color);
    color: #ffffff;
    padding: 12px 20px;
    border-radius: 4px;
    z-index: 2000;
    text-decoration: none;
    font-weight: bold;
    transition: top 0.15s ease-in-out;
}

.skip-link:focus {
    top: 8px;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

header h1 {
    margin: 0;
    max-width: 100%;
}

.settings-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    align-items: center;
}

.btn-control-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: white;
    padding: 6px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    margin: 0;
    width: auto;
}

select.btn-control-toggle option {
    background: var(--card-bg);
    color: var(--text-color);
}

.btn-control-toggle:hover, .btn-control-toggle:focus-visible {
    background: rgba(255, 255, 255, 0.3);
}

#local-time-bar {
    background: rgba(0,0,0,0.2);
    padding: 0.4rem;
    font-size: 0.95rem;
}

nav {
    display: flex;
    overflow-x: auto;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border-color);
    -webkit-overflow-scrolling: touch;
}

.nav-btn {
    flex: 1 1 auto;
    min-width: 100px;
    padding: 10px 12px;
    border: none;
    background: none;
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.8;
    white-space: normal;
    word-break: break-word;
    line-height: 1.3;
}

.nav-btn.active {
    background: var(--card-bg);
    color: var(--primary-color);
    border-top: 4px solid var(--primary-color);
    opacity: 1;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    margin-bottom: 20px;
    overflow-wrap: break-word;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.form-row {
    display: flex;
    flex-wrap: wrap; 
    gap: 15px; 
    margin-bottom: 15px;
}

.form-row > .form-group {
    flex: 1 1 calc(33.333% - 15px);
    min-width: 120px;
    margin-bottom: 0;
}

.form-group input, 
.form-group select {
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

label {
    margin-bottom: 5px;
    font-weight: bold;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    margin-right: 10px;
    margin-bottom: 10px;
}

.btn-primary { background: var(--primary-color); color: white; }
.btn-danger { background: var(--danger-color); color: white; }
.btn-secondary { background: var(--nav-bg); color: var(--text-color); border: 1px solid var(--border-color); margin-bottom: 12px; }
.margin-top { margin-top: 15px; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.nav-btn:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible,
#main-content:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.info-output ul {
    padding-left: 20px;
}

.load-error {
    color: var(--danger-color);
    font-weight: bold;
}

.info-output li {
    margin-bottom: 8px;
}

@media (max-width: 480px) {
    .form-row > .form-group {
        flex: 1 1 100%;
    }
    
    button {
        width: 100%;
        margin-right: 0;
    }
}

footer {
    text-align: center;
    padding: 1rem;
    color: var(--text-color);
    opacity: 0.8;
    font-size: 0.9rem;
}

.btn-telegram {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    padding: 8px 18px;
    background: #0f76a8;
    color: #ffffff;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.9rem;
}

.btn-telegram:hover,
.btn-telegram:focus-visible {
    background: #0b5f88;
}

.intro {
    max-width: 800px;
    margin: 0 auto;
    padding: 14px 20px;
    text-align: center;
    color: var(--text-color);
    background: var(--intro-bg);
    border-bottom: 1px solid var(--border-color);
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 30px 16px;
    overflow-y: auto;
    z-index: 1000;
}

.modal-overlay[hidden] { display: none; }

.modal-box {
    background: var(--card-bg);
    color: var(--text-color);
    border-radius: 10px;
    padding: 24px;
    max-width: 480px;
    width: 100%;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-box:focus {
    outline: none;
}

.modal-close {
    position: absolute;
    top: 8px;
    right: 8px;
    background: none;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--text-color);
    padding: 4px 8px;
    margin: 0;
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.modal-tabs {
    display: flex;
    gap: 6px;
    margin: 14px 0 18px;
    border-bottom: 1px solid var(--border-color);
}

.modal-tab-btn {
    background: none;
    border: none;
    padding: 8px 4px;
    margin: 0;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-color);
    opacity: 0.7;
    border-bottom: 3px solid transparent;
}

.modal-tab-btn.active {
    opacity: 1;
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.modal-panel { display: none; }
.modal-panel.active { display: block; }

.embed-code-box {
    width: 100%;
    box-sizing: border-box;
    font-family: monospace;
    font-size: 0.85rem;
    padding: 10px;
    background: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    resize: vertical;
    margin-bottom: 10px;
}

.embed-preview-label {
    font-weight: bold;
    margin: 16px 0 8px;
}

.embed-preview-wrap {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: auto;
    padding: 8px;
    display: flex;
    justify-content: center;
    background: var(--bg-color);
}

.embed-preview-wrap iframe {
    border: none;
    max-width: 100%;
}

.embed-image-preview {
    width: 100%;
    max-width: 320px;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.modal-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.btn-share {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    font-size: 0.9rem;
    color: #ffffff;
}

.btn-whatsapp { background: #0b7a3b; }
.btn-twitter { background: #14171a; }
.btn-facebook { background: #145dbf; }

.btn-whatsapp:hover, .btn-whatsapp:focus-visible { background: #095f2f; }
.btn-twitter:hover, .btn-twitter:focus-visible { background: #000000; }
.btn-facebook:hover, .btn-facebook:focus-visible { background: #0f4996; }

.btn-share:hover, .btn-share:focus-visible { filter: brightness(0.92); }

body.embed-body {
    margin: 0;
    padding: 14px;
    font-size: 0.95rem;
}

.embed-widget .embed-heading,
.embed-widget .embed-date {
    margin-top: 0;
    margin-bottom: 8px;
}

.embed-widget .embed-sub {
    opacity: 0.8;
    margin-top: 0;
}

.embed-widget .embed-line { margin: 6px 0; }

.embed-list {
    padding-left: 20px;
    max-height: 260px;
    overflow-y: auto;
}

.embed-list li { margin-bottom: 6px; }

.embed-form {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: flex-end;
    margin-top: 10px;
}

.embed-result { margin-top: 10px; }

.embed-footer-link {
    display: block;
    margin-top: 12px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
    font-size: 0.78rem;
    color: var(--primary-color);
    text-decoration: none;
    text-align: right;
}

@media print {
    header .settings-controls,
    #local-time-bar,
    nav,
    .btn-embed-icon,
    footer,
    .skip-link,
    #embed-modal,
    #status-announcer {
        display: none !important;
    }

    body {
        background: #ffffff;
        color: #000000;
    }

    header {
        background: none;
        color: #000000;
        padding: 0 0 10px;
    }

    main {
        padding: 0;
        max-width: 100%;
    }

    .tab-content {
        display: none !important;
    }

    .tab-content.active {
        display: block !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #999999;
        break-inside: avoid;
    }

    table {
        border-collapse: collapse;
        width: 100%;
    }

    table, th, td {
        border: 1px solid #999999;
    }

    a[href]::after {
        content: "";
    }
}

.btn-embed-icon {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.85rem;
    padding: 4px 6px;
    margin: 0 0 0 2px;
    min-width: 24px;
    min-height: 24px;
    opacity: 0.65;
    vertical-align: middle;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-embed-icon:hover, .btn-embed-icon:focus-visible {
    opacity: 1;
}

body.embed-body.badge-mode {
    padding: 0;
    background: transparent;
}

body.embed-body.badge-mode .embed-widget.card {
    background: none;
    box-shadow: none;
    padding: 0;
    margin: 0;
}

.embed-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 18px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: bold;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    box-sizing: border-box;
}

.embed-badge:hover, .embed-badge:focus-visible {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pwa-update-banner{
    position:fixed;
    left:1rem;
    right:1rem;
    bottom:1rem;
    z-index:99999;
    display:flex;
    justify-content:center;
    transition: opacity .3s ease, transform .3s ease;
    opacity:1;
}

.pwa-update-banner[hidden]{
    display:flex;
    opacity:0;
    transform:translateY(20px);
    pointer-events:none;
}

.pwa-update-content{
    width:min(700px,100%);
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:1rem;
    padding:1rem 1.25rem;
    border-radius:14px;
    background:var(--surface,#1f2937);
    color:var(--on-surface,#ffffff);
    box-shadow: 0 8px 30px rgba(0,0,0,.25);
}

.pwa-update-text{
    display:flex;
    flex-direction:column;
    gap:.25rem;
}

.pwa-update-text strong{
    font-size:1rem;
}

.pwa-update-text span{
    opacity:.85;
    font-size:.9rem;
}

.pwa-update-actions{
    display:flex;
    gap:.75rem;
}

.primary-button,
.secondary-button{
    font:inherit;
    cursor:pointer;
    padding:.65rem 1.1rem;
    border-radius:10px;
}

.primary-button{
    border:none;
    background:#2563eb;
    color:white;
}

.primary-button:hover{
    background:#1d4ed8;
}

.secondary-button{
    background:transparent;
    color:inherit;
    border:1px solid currentColor;
}

@media(max-width:640px){
    .pwa-update-content{
        flex-direction:column;
        align-items:flex-start;
    }
    .pwa-update-actions{
        width:100%;
        justify-content:flex-end;
    }
}