/* ==========================================================================
   Worldwide Country Phone Code & SIM USSD Code Finder
   ToolSphare Design System Integration
   ========================================================================== */

:root {
    --tc-primary: #3b82f6;
    --tc-primary-hover: #2563eb;
    --tc-primary-rgb: 59, 130, 246;
    --tc-success: #10b981;
    --tc-warning: #f59e0b;
    --tc-danger: #ef4444;
    --tc-surface: #ffffff;
    --tc-surface-subtle: #f8fafc;
    --tc-border: #e2e8f0;
    --tc-border-subtle: #f1f5f9;
    --tc-text: #0f172a;
    --tc-text-muted: #64748b;
    --tc-radius-lg: 16px;
    --tc-radius-md: 10px;
    --tc-radius-sm: 6px;
    --tc-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --tc-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);
}

[data-theme="dark"],
.dark {
    --tc-surface: #1e293b;
    --tc-surface-subtle: #0f172a;
    --tc-border: #334155;
    --tc-border-subtle: #1e293b;
    --tc-text: #f8fafc;
    --tc-text-muted: #94a3b8;
    --tc-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --tc-shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.4);
}

/* Base Container */
.tc-app {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    font-family: inherit;
    color: var(--tc-text);
}

/* Smart Geolocation Bar */
.tc-loc-bar {
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-lg);
    padding: 0.875rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.875rem;
    box-shadow: var(--tc-shadow);
    transition: all 0.2s ease;
}

.tc-loc-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tc-loc-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
}

.tc-loc-pulse {
    width: 9px;
    height: 9px;
    background: #10b981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: tc-pulse 2s infinite;
}

@keyframes tc-pulse {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

.tc-loc-label {
    color: var(--tc-text-muted);
    font-size: 0.875rem;
}

.tc-loc-val {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--tc-text);
}

.tc-loc-code {
    background: rgba(var(--tc-primary-rgb), 0.12);
    color: var(--tc-primary);
    font-family: monospace;
    font-weight: 700;
    padding: 0.15rem 0.45rem;
    border-radius: var(--tc-radius-sm);
    font-size: 0.875rem;
}

.tc-loc-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tc-loc-btn {
    border: none;
    border-radius: var(--tc-radius-sm);
    padding: 0.45rem 0.85rem;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: all 0.2s ease;
}

.tc-loc-btn-primary {
    background: var(--tc-primary);
    color: #ffffff;
}

.tc-loc-btn-primary:hover {
    background: var(--tc-primary-hover);
}

.tc-loc-btn-secondary {
    background: var(--tc-surface-subtle);
    color: var(--tc-text);
    border: 1px solid var(--tc-border);
}

.tc-loc-btn-secondary:hover {
    background: var(--tc-border-subtle);
}

.tc-loc-btn-ghost {
    background: transparent;
    color: var(--tc-text-muted);
    border: 1px dashed var(--tc-border);
}

.tc-loc-btn-ghost:hover {
    color: var(--tc-text);
    border-color: var(--tc-primary);
}

.tc-loc-dropdown-wrap {
    position: relative;
}

.tc-loc-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    width: 280px;
    max-height: 320px;
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-md);
    box-shadow: var(--tc-shadow-lg);
    z-index: 100;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tc-loc-dropdown-search {
    padding: 0.5rem 0.75rem;
    border: none;
    border-bottom: 1px solid var(--tc-border);
    background: var(--tc-surface-subtle);
    color: var(--tc-text);
    font-size: 0.8125rem;
    outline: none;
}

.tc-loc-dropdown-list {
    overflow-y: auto;
    max-height: 250px;
}

.tc-loc-dropdown-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    font-size: 0.8125rem;
    transition: background 0.15s ease;
}

.tc-loc-dropdown-item:hover {
    background: rgba(var(--tc-primary-rgb), 0.08);
}

/* Quick Search Hero Bar */
.tc-hero-search {
    background: linear-gradient(135deg, rgba(var(--tc-primary-rgb), 0.08) 0%, rgba(var(--tc-primary-rgb), 0.02) 100%);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: var(--tc-shadow);
}

.tc-search-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.tc-search-icon {
    position: absolute;
    left: 1.1rem;
    width: 22px;
    height: 22px;
    color: var(--tc-text-muted);
    pointer-events: none;
}

.tc-search-input {
    width: 100%;
    padding: 0.95rem 3.5rem 0.95rem 3.2rem;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--tc-text);
    background: var(--tc-surface);
    border: 2px solid var(--tc-border);
    border-radius: var(--tc-radius-md);
    outline: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.tc-search-input:focus {
    border-color: var(--tc-primary);
    box-shadow: 0 0 0 4px rgba(var(--tc-primary-rgb), 0.15);
}

.tc-search-clear {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--tc-text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.25rem 0.5rem;
    border-radius: 50%;
    display: none;
}

.tc-search-clear.visible {
    display: block;
}

/* Fast Navigation Chips */
.tc-quick-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--tc-text-muted);
}

.tc-quick-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.65rem;
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: 9999px;
    color: var(--tc-text);
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.tc-quick-chip:hover {
    border-color: var(--tc-primary);
    color: var(--tc-primary);
    background: rgba(var(--tc-primary-rgb), 0.05);
}

/* Tabs Navigation */
.tc-tabs-nav {
    display: flex;
    overflow-x: auto;
    gap: 0.5rem;
    border-bottom: 2px solid var(--tc-border);
    padding-bottom: 2px;
    scrollbar-width: none;
}

.tc-tabs-nav::-webkit-scrollbar {
    display: none;
}

.tc-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--tc-text-muted);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    margin-bottom: -2px;
}

.tc-tab-btn:hover {
    color: var(--tc-text);
}

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

.tc-tab-badge {
    padding: 0.15rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 9999px;
    background: var(--tc-border);
    color: var(--tc-text);
}

.tc-tab-btn.active .tc-tab-badge {
    background: rgba(var(--tc-primary-rgb), 0.15);
    color: var(--tc-primary);
}

/* Content Area */
.tc-tab-content {
    display: none;
}

.tc-tab-content.active {
    display: block;
    animation: tcFadeIn 0.25s ease-out;
}

@keyframes tcFadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Toolbar & Filters */
.tc-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    align-items: center;
    justify-content: space-between;
}

.tc-filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.tc-select {
    padding: 0.55rem 2rem 0.55rem 0.85rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--tc-text);
    background-color: var(--tc-surface);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.6rem center;
    background-repeat: no-repeat;
    background-size: 1.2em 1.2em;
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-md);
    outline: none;
    cursor: pointer;
    appearance: none;
    transition: border-color 0.15s ease;
}

.tc-select:focus {
    border-color: var(--tc-primary);
}

.tc-count-pill {
    font-size: 0.85rem;
    color: var(--tc-text-muted);
    font-weight: 500;
}

/* Grids */
.tc-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 1rem;
}

/* Country Card */
.tc-country-card {
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-md);
    padding: 1.15rem;
    box-shadow: var(--tc-shadow);
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    cursor: pointer;
}

.tc-country-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--tc-shadow-lg);
    border-color: rgba(var(--tc-primary-rgb), 0.5);
}

.tc-country-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.tc-flag-name {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    min-width: 0;
}

.tc-flag {
    font-size: 1.8rem;
    line-height: 1;
    flex-shrink: 0;
}

.tc-country-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--tc-text);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tc-iso-tag {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--tc-text-muted);
    background: var(--tc-border);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

.tc-dial-code-badge {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--tc-primary);
    background: rgba(var(--tc-primary-rgb), 0.1);
    padding: 0.25rem 0.65rem;
    border-radius: var(--tc-radius-sm);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.tc-country-meta-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    background: var(--tc-surface-subtle);
    padding: 0.65rem;
    border-radius: var(--tc-radius-sm);
    font-size: 0.8rem;
}

.tc-meta-item strong {
    display: block;
    color: var(--tc-text-muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.15rem;
}

.tc-meta-item span {
    font-weight: 600;
    color: var(--tc-text);
}

.tc-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--tc-text-muted);
    border-top: 1px solid var(--tc-border-subtle);
    padding-top: 0.65rem;
}

.tc-view-more-link {
    color: var(--tc-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

/* Service Code Card */
.tc-code-card {
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-md);
    padding: 1.15rem;
    box-shadow: var(--tc-shadow);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 1rem;
    transition: all 0.15s ease;
}

.tc-code-card:hover {
    border-color: rgba(var(--tc-primary-rgb), 0.4);
    box-shadow: var(--tc-shadow-lg);
}

.tc-code-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
}

.tc-code-title-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.tc-category-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 9999px;
    background: rgba(var(--tc-primary-rgb), 0.1);
    color: var(--tc-primary);
    width: fit-content;
}

.tc-code-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--tc-text);
    margin: 0;
}

.tc-contract-badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.2rem 0.45rem;
    border-radius: 4px;
    letter-spacing: 0.03em;
    flex-shrink: 0;
}

.tc-contract-prepaid {
    background: #e0f2fe;
    color: #0369a1;
}

.tc-contract-postpaid {
    background: #fef3c7;
    color: #b45309;
}

.tc-contract-both {
    background: #dcfce7;
    color: #15803d;
}

/* Large Code Display Box */
.tc-ussd-box {
    background: var(--tc-surface-subtle);
    border: 1px dashed var(--tc-border);
    border-radius: var(--tc-radius-sm);
    padding: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.tc-ussd-string {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--tc-primary);
    letter-spacing: 0.05em;
    user-select: all;
}

.tc-operator-identity {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tc-text-muted);
}

.tc-op-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.tc-code-desc {
    font-size: 0.82rem;
    color: var(--tc-text-muted);
    line-height: 1.4;
    margin: 0;
}

/* Action Buttons */
.tc-code-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.tc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.55rem 0.85rem;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--tc-radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    border: none;
}

.tc-btn-primary {
    background: var(--tc-primary);
    color: #ffffff;
}

.tc-btn-primary:hover {
    background: var(--tc-primary-hover);
    color: #ffffff;
}

.tc-btn-outline {
    background: var(--tc-surface);
    color: var(--tc-text);
    border: 1px solid var(--tc-border);
}

.tc-btn-outline:hover {
    background: var(--tc-surface-subtle);
    border-color: var(--tc-text-muted);
}

.tc-btn-ghost {
    background: transparent;
    color: var(--tc-text-muted);
    padding: 0.35rem 0.5rem;
    font-size: 0.78rem;
}

.tc-btn-ghost:hover {
    color: var(--tc-text);
    background: var(--tc-surface-subtle);
}

/* Code Verification Footer */
.tc-verify-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--tc-text-muted);
    padding-top: 0.5rem;
    border-top: 1px solid var(--tc-border-subtle);
}

.tc-verified-label {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--tc-success);
    font-weight: 600;
}

.tc-verified-label.pending {
    color: var(--tc-warning);
}

.tc-feedback-btn {
    background: none;
    border: none;
    color: var(--tc-text-muted);
    font-size: 0.75rem;
    text-decoration: underline;
    cursor: pointer;
    padding: 0;
}

.tc-feedback-btn:hover {
    color: var(--tc-primary);
}

/* ==========================================================================
   Tab 3: Phone Number Checker UI
   ========================================================================== */
.tc-checker-container {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.tc-checker-box {
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-lg);
    padding: 1.75rem;
    box-shadow: var(--tc-shadow);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.tc-checker-input-row {
    display: flex;
    gap: 0.75rem;
}

.tc-checker-input {
    flex: 1;
    padding: 0.95rem 1.25rem;
    font-size: 1.15rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-weight: 600;
    color: var(--tc-text);
    background: var(--tc-surface-subtle);
    border: 2px solid var(--tc-border);
    border-radius: var(--tc-radius-md);
    outline: none;
    transition: all 0.2s ease;
}

.tc-checker-input:focus {
    border-color: var(--tc-primary);
    background: var(--tc-surface);
    box-shadow: 0 0 0 4px rgba(var(--tc-primary-rgb), 0.15);
}

.tc-checker-btn {
    padding: 0 1.75rem;
    font-size: 1rem;
    font-weight: 700;
    background: var(--tc-primary);
    color: #ffffff;
    border: none;
    border-radius: var(--tc-radius-md);
    cursor: pointer;
    transition: background 0.15s ease;
}

.tc-checker-btn:hover {
    background: var(--tc-primary-hover);
}

/* Results Card */
.tc-checker-result {
    display: none;
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--tc-shadow-lg);
    animation: tcFadeIn 0.3s ease-out;
}

.tc-checker-result.active {
    display: block;
}

.tc-result-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--tc-border);
    margin-bottom: 1.25rem;
}

.tc-result-status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.tc-status-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.tc-status-icon.valid {
    background: #dcfce7;
    color: #15803d;
}

.tc-status-icon.invalid {
    background: #fee2e2;
    color: #b91c1c;
}

.tc-result-title {
    font-size: 1.2rem;
    font-weight: 800;
    margin: 0;
    color: var(--tc-text);
}

.tc-result-country-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--tc-text);
}

/* Formatted Numbers Table */
.tc-format-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.tc-format-card {
    background: var(--tc-surface-subtle);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-sm);
    padding: 0.85rem;
}

.tc-format-card label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--tc-text-muted);
    text-transform: uppercase;
    margin-bottom: 0.35rem;
}

.tc-format-val-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.tc-format-val {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--tc-text);
}

.tc-copy-icon-btn {
    background: none;
    border: none;
    color: var(--tc-text-muted);
    cursor: pointer;
    padding: 0.2rem;
    border-radius: 4px;
}

.tc-copy-icon-btn:hover {
    color: var(--tc-primary);
    background: var(--tc-border);
}

/* Privacy & MNP Notice Box */
.tc-notice-box {
    background: rgba(var(--tc-primary-rgb), 0.05);
    border: 1px solid rgba(var(--tc-primary-rgb), 0.2);
    border-radius: var(--tc-radius-md);
    padding: 1rem;
    font-size: 0.82rem;
    color: var(--tc-text);
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    line-height: 1.5;
}

.tc-notice-icon {
    flex-shrink: 0;
    color: var(--tc-primary);
    width: 20px;
    height: 20px;
    margin-top: 0.1rem;
}

/* ==========================================================================
   Modals
   ========================================================================== */
.tc-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1rem;
}

.tc-modal-backdrop.active {
    display: flex;
    animation: tcBackdropFade 0.2s ease-out;
}

@keyframes tcBackdropFade {
    from { opacity: 0; }
    to { opacity: 1; }
}

.tc-modal {
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-lg);
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--tc-shadow-lg);
    display: flex;
    flex-direction: column;
    animation: tcModalScale 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes tcModalScale {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.tc-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--tc-border);
}

.tc-modal-title {
    font-size: 1.25rem;
    font-weight: 800;
    margin: 0;
    color: var(--tc-text);
}

.tc-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--tc-text-muted);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

.tc-modal-close:hover {
    color: var(--tc-text);
    background: var(--tc-surface-subtle);
}

.tc-modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Toast Confirmation */
.tc-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #0f172a;
    color: #ffffff;
    padding: 0.75rem 1.25rem;
    border-radius: var(--tc-radius-md);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 10000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.tc-toast.active {
    transform: translateY(0);
    opacity: 1;
}

/* Skeleton Loading State */
.tc-skeleton-card {
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tc-skeleton-line {
    height: 14px;
    background: linear-gradient(90deg, var(--tc-border) 25%, var(--tc-surface-subtle) 50%, var(--tc-border) 75%);
    background-size: 200% 100%;
    animation: tcShimmer 1.5s infinite;
    border-radius: 4px;
}

@keyframes tcShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Empty State */
.tc-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--tc-text-muted);
}

.tc-empty-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    opacity: 0.5;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .tc-hero-search {
        padding: 1rem;
    }
    
    .tc-cards-grid {
        grid-template-columns: 1fr;
    }

    .tc-checker-input-row {
        flex-direction: column;
    }

    .tc-checker-btn {
        padding: 0.85rem;
    }

    .tc-country-meta-row {
        grid-template-columns: 1fr;
    }
}