/* ==========================================================================
   Time Zone Converter Tool Styles
   Theme & Token Integrated (Light / Dark)
   ========================================================================== */

.tz-container {
    padding: var(--space-4) 0;
}

.tz-header-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-6);
}

.tz-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-fg);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.tz-title i {
    color: var(--color-accent);
}

.tz-description {
    color: var(--color-fg-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Card surfaces */
.tz-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--space-5);
    margin-bottom: var(--space-5);
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.tz-card:hover {
    border-color: var(--color-accent);
}

.tz-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.tz-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-fg);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: 0;
}

/* Quick pills */
.tz-quick-presets {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.tz-preset-btn {
    font-size: 0.8rem;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background-color: var(--color-surface-elevated);
    color: var(--color-fg);
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.tz-preset-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-accent-fg);
    border-color: var(--color-accent);
}

/* Timezone pill for dark/light mode contrast */
.tz-zone-pill {
    background-color: var(--color-surface-elevated);
    color: var(--color-fg);
    border: 1px solid var(--color-border);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.tz-target-location {
    font-size: 0.8rem;
    color: var(--color-fg-muted);
    margin-top: 2px;
    word-break: break-word;
}

.tz-option-main {
    display: flex;
    flex-direction: column;
    gap: 2px;
    overflow: hidden;
}

.tz-option-title {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--color-fg);
}

.tz-option-location {
    font-size: 0.75rem;
    color: var(--color-fg-muted);
}

/* ==========================================================================
   Searchable Dropdown Component
   ========================================================================== */
.tz-select-container {
    position: relative;
    width: 100%;
}

.tz-select-trigger {
    width: 100%;
    min-height: 44px;
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-fg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    text-align: left;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.tz-select-trigger:focus,
.tz-select-trigger.active {
    outline: none;
    border-color: var(--color-ring);
    box-shadow: var(--shadow-ring);
}

.tz-select-value {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.95rem;
}

.tz-offset-pill {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    background-color: var(--color-surface-elevated);
    color: var(--color-accent);
    border: 1px solid var(--color-border);
    font-family: var(--font-mono);
    white-space: nowrap;
}

.tz-select-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 1050;
    display: none;
    flex-direction: column;
    max-height: 380px;
    overflow: hidden;
}

.tz-select-dropdown.show {
    display: flex;
}

.tz-search-box {
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-surface);
    position: sticky;
    top: 0;
    z-index: 2;
}

.tz-search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.tz-search-input-wrapper i.bi-search {
    position: absolute;
    left: var(--space-3);
    color: var(--color-fg-muted);
    font-size: 0.9rem;
}

.tz-search-input {
    width: 100%;
    padding: var(--space-2) var(--space-8) var(--space-2) 2.25rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface-elevated);
    color: var(--color-fg);
    font-size: 0.9rem;
    outline: none;
}

.tz-search-input:focus {
    border-color: var(--color-accent);
}

.tz-search-clear {
    position: absolute;
    right: var(--space-2);
    background: transparent;
    border: none;
    color: var(--color-fg-muted);
    font-size: 0.85rem;
    cursor: pointer;
    display: none;
}

.tz-options-list {
    overflow-y: auto;
    max-height: 300px;
    padding: var(--space-1) 0;
    margin: 0;
    list-style: none;
}

.tz-option-group-label {
    padding: var(--space-2) var(--space-4);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-fg-muted);
    background-color: var(--color-surface-elevated);
    position: sticky;
    top: 0;
    z-index: 1;
}

.tz-option-item {
    padding: var(--space-2) var(--space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-fg);
    transition: background-color 0.12s;
}

.tz-option-item:hover,
.tz-option-item.highlighted {
    background-color: var(--color-surface-elevated);
    color: var(--color-accent);
}

.tz-option-item.selected {
    background-color: rgba(124, 58, 237, 0.1);
    font-weight: 600;
}

.tz-option-empty {
    padding: var(--space-6);
    text-align: center;
    color: var(--color-fg-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   Target Timezone Cards & Grid
   ========================================================================== */
.tz-target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-4);
}

.tz-target-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.tz-target-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tz-target-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.tz-target-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-fg);
    margin-bottom: 2px;
    word-break: break-word;
}

.tz-target-subtitle {
    font-size: 0.75rem;
    color: var(--color-fg-muted);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.tz-card-actions {
    display: flex;
    gap: var(--space-1);
}

.tz-icon-btn {
    background: transparent;
    border: none;
    color: var(--color-fg-muted);
    font-size: 0.9rem;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: color 0.15s, background-color 0.15s;
}

.tz-icon-btn:hover {
    color: var(--color-accent);
    background-color: var(--color-surface-elevated);
}

.tz-icon-btn.remove-btn:hover {
    color: var(--color-danger);
}

.tz-time-display {
    margin: var(--space-2) 0 var(--space-3);
}

.tz-digital-time {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-fg);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.tz-formatted-date {
    font-size: 0.9rem;
    color: var(--color-fg-muted);
    margin-top: var(--space-1);
}

.tz-badges-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px dashed var(--color-border);
}

.tz-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.tz-badge-diff-ahead {
    background-color: rgba(34, 197, 94, 0.12);
    color: var(--color-success);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.tz-badge-diff-behind {
    background-color: rgba(2, 132, 199, 0.12);
    color: var(--color-info);
    border: 1px solid rgba(2, 132, 199, 0.25);
}

.tz-badge-diff-same {
    background-color: var(--color-surface-elevated);
    color: var(--color-fg-muted);
    border: 1px solid var(--color-border);
}

.tz-badge-day {
    background-color: rgba(124, 58, 237, 0.12);
    color: var(--color-accent);
    border: 1px solid rgba(124, 58, 237, 0.25);
}

.tz-badge-dst {
    background-color: rgba(245, 158, 11, 0.12);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.25);
}

/* Copy button in card */
.tz-copy-box {
    margin-top: var(--space-3);
    display: flex;
    justify-content: flex-end;
}

.tz-btn-copy {
    font-size: 0.8rem;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-fg);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    transition: all 0.15s ease;
}

.tz-btn-copy:hover {
    background-color: var(--color-accent);
    color: var(--color-accent-fg);
    border-color: var(--color-accent);
}

/* ==========================================================================
   Table View
   ========================================================================== */
.tz-table-container {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
}

.tz-table {
    width: 100%;
    margin-bottom: 0;
    color: var(--color-fg);
}

.tz-table th {
    background-color: var(--color-surface-elevated);
    color: var(--color-fg-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.tz-table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
    font-size: 0.9rem;
}

.tz-table tr:last-child td {
    border-bottom: none;
}

.tz-table tr:hover td {
    background-color: var(--color-surface-elevated);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 768px) {
    .tz-target-grid {
        grid-template-columns: 1fr;
    }

    .tz-digital-time {
        font-size: 1.5rem;
    }

    .tz-header-card {
        padding: var(--space-4);
    }
}