/* Web Khabar Nepal — Unicode Converter */
.uc-page {
    --uc-primary: #91191C;
    --uc-primary-dark: #7a1417;
    --uc-navy: #001b44;
    --uc-bg: #f4f6f9;
    --uc-card: #ffffff;
    --uc-border: #e5e7eb;
    --uc-muted: #6b7280;
    --uc-radius: 0;
    min-height: 100vh;
    background: var(--uc-bg);
    font-family: 'Mukta', 'Noto Sans Devanagari', sans-serif;
    -webkit-text-size-adjust: 100%;
    padding-bottom: env(safe-area-inset-bottom, 0);
}

/* Hero */
.uc-hero {
    background: linear-gradient(135deg, var(--uc-primary) 0%, var(--uc-primary-dark) 55%, var(--uc-navy) 100%);
    color: #fff;
    padding: 1.75rem 1rem 2rem;
    text-align: center;
}

.uc-hero__title {
    font-size: clamp(1.75rem, 5vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 0.35rem;
}

.uc-hero__sub {
    font-size: clamp(0.8rem, 2.5vw, 1rem);
    opacity: 0.9;
    margin: 0 0 0.75rem;
}

.uc-hero__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.uc-hero__badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--uc-radius);
}

/* Tabs */
.uc-tabs-wrap {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--uc-navy);
    box-shadow: 0 4px 12px rgba(0, 27, 68, 0.25);
}

.uc-tabs {
    display: flex;
    gap: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    max-width: 72rem;
    margin: 0 auto;
    padding: 0 0.5rem;
}

.uc-tabs::-webkit-scrollbar { display: none; }

.converter-tab {
    flex: 1 0 auto;
    min-width: max-content;
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.75);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: color 0.2s, background 0.2s, border-color 0.2s;
    white-space: nowrap;
    font-family: inherit;
    touch-action: manipulation;
}

@media (min-width: 640px) {
    .converter-tab {
        padding: 1rem 1.5rem;
        font-size: 0.95rem;
    }
}

.converter-tab:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.converter-tab.active {
    color: #fff;
    background: rgba(145, 25, 28, 0.45);
    border-bottom-color: var(--uc-primary);
}

.converter-tab.active::after { display: none; }

/* Main */
.uc-main {
    max-width: 72rem;
    margin: 0 auto;
    padding: 1rem 0.75rem 2rem;
}

@media (min-width: 640px) {
    .uc-main { padding: 1.5rem 1rem 2.5rem; }
}

.converter-section {
    animation: ucFadeIn 0.25s ease-out;
}

@keyframes ucFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.uc-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 1024px) {
    .uc-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem;
    }
}

/* Panels */
.uc-panel {
    background: var(--uc-card);
    border: 1px solid var(--uc-border);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
}

.uc-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--uc-border);
    background: #fafafa;
}

.uc-panel__head--input {
    border-left: 4px solid var(--uc-primary);
}

.uc-panel__head--output {
    border-left: 4px solid var(--uc-navy);
}

.uc-panel__title {
    font-size: 1rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0;
}

@media (min-width: 640px) {
    .uc-panel__title { font-size: 1.125rem; }
}

.uc-panel__count {
    font-size: 0.75rem;
    color: var(--uc-muted);
    white-space: nowrap;
}

.uc-panel__body {
    padding: 0.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.uc-textarea {
    width: 100%;
    min-height: 11rem;
    flex: 1;
    padding: 0.875rem;
    font-size: 16px; /* prevents iOS zoom */
    line-height: 1.6;
    border: 1px solid var(--uc-border);
    border-radius: var(--uc-radius);
    resize: vertical;
    font-family: 'Mukta', 'Noto Sans Devanagari', sans-serif;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
    -webkit-appearance: none;
}

@media (min-width: 640px) {
    .uc-textarea { min-height: 14rem; }
}

.uc-textarea:focus {
    outline: none;
    border-color: var(--uc-primary);
    box-shadow: 0 0 0 3px rgba(145, 25, 28, 0.15);
}

.uc-textarea--output {
    background: #f9fafb;
}

.uc-panel__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--uc-border);
    background: #fafafa;
}

/* Buttons */
.uc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    min-height: 44px;
    min-width: 44px;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--uc-radius);
    cursor: pointer;
    touch-action: manipulation;
    transition: background 0.2s, transform 0.1s;
}

.uc-btn:active { transform: scale(0.98); }

.uc-btn--ghost {
    background: #e5e7eb;
    color: #374151;
}

.uc-btn--ghost:hover { background: #d1d5db; }

.uc-btn--secondary {
    background: var(--uc-navy);
    color: #fff;
}

.uc-btn--secondary:hover { background: #002a66; }

.uc-btn--primary {
    background: var(--uc-primary);
    color: #fff;
}

.uc-btn--primary:hover { background: var(--uc-primary-dark); }

.uc-btn--copied {
    background: #059669 !important;
}

.uc-panel__actions .uc-btn--primary,
.uc-panel__actions .uc-btn--secondary {
    flex: 1;
}

@media (min-width: 480px) {
    .uc-panel__actions .uc-btn--primary,
    .uc-panel__actions .uc-btn--secondary {
        flex: 0 1 auto;
    }
}

/* Samples */
.uc-samples {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.uc-sample {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 0.75rem;
    background: #fff;
    border: 1px solid var(--uc-border);
    color: var(--uc-primary);
    cursor: pointer;
    font-family: inherit;
    min-height: 36px;
    touch-action: manipulation;
    transition: background 0.2s, border-color 0.2s;
}

.uc-sample:hover {
    background: #fef2f2;
    border-color: var(--uc-primary);
}

/* Mobile swap indicator */
.uc-swap-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0;
    color: var(--uc-muted);
}

@media (min-width: 1024px) {
    .uc-swap-hint { display: none; }
}

.uc-swap-hint svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--uc-primary);
}

/* Help cards */
.uc-help {
    margin-top: 1.5rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

@media (min-width: 640px) {
    .uc-help { grid-template-columns: repeat(3, 1fr); }
}

.uc-help__card {
    background: #fff;
    border: 1px solid var(--uc-border);
    padding: 1rem;
    border-left: 4px solid var(--uc-primary);
}

.uc-help__card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--uc-navy);
    margin: 0 0 0.35rem;
}

.uc-help__card p {
    font-size: 0.85rem;
    color: var(--uc-muted);
    margin: 0;
    line-height: 1.5;
}

/* Character reference */
.uc-ref {
    margin-top: 1.5rem;
    background: #fff;
    border: 1px solid var(--uc-border);
}

.uc-ref__toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem;
    background: #fafafa;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    min-height: 52px;
    touch-action: manipulation;
}

.uc-ref__toggle h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--uc-navy);
    margin: 0;
}

.uc-ref__icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
    transition: transform 0.25s;
    color: var(--uc-primary);
}

.uc-ref__icon.rotate-180 { transform: rotate(180deg); }

.uc-ref__body {
    padding: 0 0.75rem 1rem;
}

.uc-ref__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 768px) {
    .uc-ref__grid { grid-template-columns: repeat(3, 1fr); }
}

.uc-ref__table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.uc-ref table {
    width: 100%;
    min-width: 200px;
    font-size: 0.8rem;
    border-collapse: collapse;
}

.uc-ref th,
.uc-ref td {
    border: 1px solid var(--uc-border);
    padding: 0.4rem 0.5rem;
    text-align: center;
}

.uc-ref th {
    background: #f3f4f6;
    font-weight: 700;
    color: var(--uc-navy);
}

.uc-ref h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: #374151;
}

/* Toast */
.uc-toast {
    position: fixed;
    bottom: calc(1.25rem + env(safe-area-inset-bottom, 0));
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    z-index: 9999;
    background: var(--uc-navy);
    color: #fff;
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    max-width: calc(100vw - 2rem);
    text-align: center;
}

.uc-toast--visible {
    transform: translateX(-50%) translateY(0);
}

/* Scrollbar */
.uc-textarea::-webkit-scrollbar { width: 5px; }
.uc-textarea::-webkit-scrollbar-track { background: #f1f1f1; }
.uc-textarea::-webkit-scrollbar-thumb { background: #c1c1c1; }