/* WhaleStack — Clean, Minimalist & Modern Stylesheet */
:root {
    --bg-color: #0b0e14;
    --panel-bg: rgba(18, 24, 38, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --accent-hover: #3182ce;
    --accent-glow: rgba(88, 166, 255, 0.25);
    --card-bg: rgba(22, 27, 34, 0.5);
    --card-hover: rgba(33, 38, 45, 0.8);
    --transition: all 0.25s ease;
}

body.light-mode {
    --bg-color: #f3f4f6;
    --panel-bg: rgba(255, 255, 255, 0.85);
    --border-color: rgba(0, 0, 0, 0.08);
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.2);
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-hover: rgba(243, 244, 246, 0.95);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.hidden {
    display: none !important;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.1rem 2.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--panel-bg);
    backdrop-filter: blur(15px);
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
}

.app-logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 0 12px rgba(88, 166, 255, 0.2);
}

.logo h1 {
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Header Actions (Right Side: Tools, About, Theme Toggle) */
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-shrink: 0;
}

/* Market Sidebar Component (Right Column) */
.market-sidebar {
    width: 100%;
    position: sticky;
    top: 1rem;
    max-height: calc(100vh - 5rem);
    display: flex;
    flex-direction: column;
}

.market-sidebar-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-right: none;
    border-radius: 14px 0 0 14px;
    padding: 1.4rem;
    box-shadow: -8px 0 30px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
    box-sizing: border-box;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.market-sidebar-card:hover {
    border-color: rgba(55, 91, 210, 0.4);
    box-shadow: -10px 0 36px rgba(55, 91, 210, 0.15);
}

/* Market Header (Sade & Temiz) */
.market-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.55rem;
    border-bottom: 1px solid var(--border-color);
}



.market-header-title {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.live-indicator-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
    animation: livePulse 2.5s infinite ease-in-out;
}

@keyframes livePulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.market-header-title h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.market-source-tag {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    color: var(--accent-color);
    background: rgba(88, 166, 255, 0.08);
    border: 1px solid rgba(88, 166, 255, 0.2);
    padding: 2px 8px;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
}

body.light-mode .market-source-tag {
    color: var(--accent-color);
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
}

/* Price Flash Animation when updated */
.price-updated {
    animation: priceFlash 1.4s ease-out forwards;
}

@keyframes priceFlash {
    0% {
        color: #10b981;
        text-shadow: 0 0 10px rgba(16, 185, 129, 0.7);
        transform: scale(1.05);
    }
    60% {
        color: #10b981;
        text-shadow: 0 0 6px rgba(16, 185, 129, 0.3);
        transform: scale(1.01);
    }
    100% {
        color: inherit;
        text-shadow: none;
        transform: scale(1);
    }
}

/* Coins List — scrollable independently */
.market-coins-list {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 4px;
    margin: 0.75rem 0;
    scroll-behavior: smooth;
}

/* Custom scrollbar */
.market-coins-list::-webkit-scrollbar {
    width: 4px;
}
.market-coins-list::-webkit-scrollbar-track {
    background: transparent;
}
.market-coins-list::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.12);
    border-radius: 4px;
}
.market-coins-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.25);
}
body.light-mode .market-coins-list::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.15);
}
body.light-mode .market-coins-list::-webkit-scrollbar-thumb:hover {
    background: rgba(0,0,0,0.28);
}

.watchlist-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.55rem 0.75rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: var(--transition);
    gap: 0;
}

.watchlist-row:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.15);
}

body.light-mode .watchlist-row {
    background: rgba(0, 0, 0, 0.02);
}

body.light-mode .watchlist-row:hover {
    background: rgba(0, 0, 0, 0.04);
}

.watchlist-coin-info {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

/* Coin Logo (CoinGecko image) */
.watchlist-coin-logo {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    background: rgba(255,255,255,0.06);
}

.watchlist-coin-logo-fallback {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.watchlist-coin-names {
    display: flex;
    flex-direction: column;
}

.watchlist-coin-symbol {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

.watchlist-coin-fullname {
    font-size: 0.73rem;
    color: var(--text-secondary);
}

.watchlist-coin-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
    margin-left: 0.5rem;
}

/* Price column: price stacked above 24h change badge */
.watchlist-price-col {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
}

.watchlist-coin-price {
    font-size: 0.95rem;
    font-weight: 700;
    font-family: 'Inter', monospace;
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
    transition: none; /* Handled by animation */
}

/* 24h change badge */
.watchlist-change {
    font-size: 0.68rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.2px;
    line-height: 1;
    padding: 1px 5px;
    border-radius: 4px;
    display: inline-block;
    min-width: 46px;
    text-align: right;
}

.change-positive {
    color: #10b981;
    background: rgba(16, 185, 129, 0.12);
}

.change-negative {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.change-neutral {
    color: transparent;
    background: transparent;
    min-width: 0;
}

/* Price flash animation on update */
@keyframes priceFlash {
    0%   { color: var(--accent-color); transform: scale(1.06); }
    100% { color: inherit; transform: scale(1); }
}

.price-updated {
    animation: priceFlash 1.4s ease-out forwards;
}

.coin-delete-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    padding: 2px 4px;
    border-radius: 4px;
    opacity: 0.4;
    transition: var(--transition);
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.coin-delete-btn:hover {
    color: #ef4444;
    opacity: 1;
    transform: scale(1.15);
}

/* ── Drag & Drop ─────────────────────────────────────────── */

/* Drag handle icon (left side of each row) */
.drag-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    min-width: 18px;
    height: 100%;
    color: var(--text-secondary);
    opacity: 0;
    cursor: grab;
    font-size: 0.72rem;
    padding: 0;
    margin-right: 6px;
    flex-shrink: 0;
    transition: opacity 0.15s ease;
    -webkit-user-select: none;
    user-select: none;
}

/* Invisible spacer for fixed rows (BTC/ETH) — same width keeps logos aligned */
.drag-handle--fixed {
    cursor: default;
    pointer-events: none;
}

.watchlist-row:hover .drag-handle:not(.drag-handle--fixed) {
    opacity: 0.5;
}

.drag-handle:active:not(.drag-handle--fixed) {
    cursor: grabbing;
    opacity: 0.85;
}

/* Row while being dragged */
.watchlist-row.dragging {
    background: rgba(88, 166, 255, 0.08);
    border-color: var(--accent-color);
    box-shadow: 0 4px 20px rgba(88, 166, 255, 0.15);
    cursor: grabbing;
}

body.light-mode .watchlist-row.dragging {
    background: rgba(37, 99, 235, 0.06);
}

/* Drop target placeholder bar */
.drag-placeholder {
    background: linear-gradient(90deg, transparent, rgba(88, 166, 255, 0.35), transparent);
    border: 1px dashed rgba(88, 166, 255, 0.5);
    border-radius: 8px;
    margin: 2px 0;
    pointer-events: none;
    animation: placeholderPulse 0.8s ease infinite alternate;
}

@keyframes placeholderPulse {
    from { opacity: 0.5; }
    to   { opacity: 1;   }
}

/* Minimalist Add Coin Trigger Button */
.add-coin-trigger-btn {
    width: 100%;
    padding: 0.55rem;
    background: transparent;
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    transition: var(--transition);
}

.add-coin-trigger-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: rgba(88, 166, 255, 0.04);
}

/* Minimalist Add Coin Modal */
.modal-overlay.hidden {
    display: none !important;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: modalFadeIn 0.2s ease;
    padding: 1rem;
}

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

.modal-card {
    background: #11151f;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    animation: modalSlideUp 0.25s ease;
}

body.light-mode .modal-card {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
}

@keyframes modalSlideUp {
    from { transform: translateY(12px) scale(0.98); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 1.4rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.modal-title i {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.modal-title h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 4px;
    border-radius: 6px;
    transition: var(--transition);
}

.modal-close-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

.modal-body {
    padding: 1.3rem 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ─── Coin Search (CoinGecko) ─────────────────────────────── */

.coin-search-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: relative;
}

.coin-search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.coin-search-icon {
    position: absolute;
    left: 0.85rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    pointer-events: none;
}

.coin-search-input {
    width: 100%;
    padding: 0.7rem 0.85rem 0.7rem 2.4rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.coin-search-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.coin-search-input::placeholder {
    color: var(--text-secondary);
    font-size: 0.82rem;
}

body.light-mode .coin-search-input {
    background: #ffffff;
    border-color: rgba(0,0,0,0.12);
}

/* Dropdown */
.coin-search-dropdown {
    background: #11151f;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(0,0,0,0.5);
    animation: dropdownFadeIn 0.15s ease;
    max-height: 280px;
    overflow-y: auto;
}

body.light-mode .coin-search-dropdown {
    background: #ffffff;
    border-color: rgba(0,0,0,0.1);
    box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

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

.search-result-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.65rem 0.9rem;
    cursor: pointer;
    transition: background 0.15s ease;
    border-bottom: 1px solid var(--border-color);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: rgba(88,166,255,0.08);
}

body.light-mode .search-result-item:hover {
    background: rgba(37,99,235,0.06);
}

.search-result-thumb {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.search-result-thumb-placeholder {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.search-result-text {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

.search-result-symbol {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.2px;
}

.search-result-name {
    font-size: 0.73rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-rank {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    padding: 1px 6px;
    border-radius: 5px;
    flex-shrink: 0;
}

.search-no-result {
    padding: 1rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.82rem;
}

.search-hint {
    font-size: 0.73rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    opacity: 0.7;
    margin: 0;
}

.search-hint i {
    font-size: 0.7rem;
    color: var(--accent-color);
    opacity: 0.8;
}

/* Feed form message (shared) */
.feed-form-msg {
    font-size: 0.76rem;
    text-align: center;
    min-height: 1rem;
}

.feed-form-msg.error { color: #ef4444; }
.feed-form-msg.success { color: #10b981; }
.feed-form-msg.info { color: var(--accent-color); }

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Nav Links */
.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.45rem 0.95rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.nav-btn:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.04);
}

.nav-btn.active {
    background: var(--accent-color);
    color: #ffffff;
    border-color: var(--accent-color);
    box-shadow: 0 0 12px var(--accent-glow);
}

/* Theme Toggle */
.theme-toggle-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.3rem;
}

.theme-icon {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.theme-switch .slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #374151;
    border-radius: 24px;
    transition: 0.3s;
}

.theme-switch .slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

.theme-switch input:checked + .slider {
    background: var(--accent-color);
}

.theme-switch input:checked + .slider::before {
    transform: translateX(20px);
}

/* Main Content & SPA Sections */
main {
    flex: 1;
    padding: 2.5rem 0 2.5rem 2rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.page-section {
    display: none;
    width: 100%;
    max-width: 1400px;
    animation: fadeIn 0.25s ease;
}

.page-section.active {
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Tools Layout: Left Tools (2 columns) + Right Market Sidebar */
.tools-layout {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 0;
    align-items: start;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.35rem;
    width: 100%;
    padding-right: 1.35rem;
}

.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.6rem;
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

.tool-card:hover {
    background: var(--card-hover);
    transform: translateY(-3px);
    border-color: var(--accent-color);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.tool-card:hover .tool-icon {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 0 12px var(--accent-glow);
}

.tool-info h3 {
    font-size: 1.12rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.tool-info p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Inline Tool Viewer */
.tool-viewer {
    width: 100%;
    height: calc(100vh - 120px);
    min-height: 600px;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--panel-bg);
    display: flex;
    flex-direction: column;
}

.tool-viewer-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1.25rem;
    background: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
}

.tool-back-btn {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.4rem 0.9rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--accent-color);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.tool-back-btn:hover {
    background: var(--accent-color);
    color: white;
}

.tool-viewer-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.tool-iframe {
    flex: 1;
    width: 100%;
    border: none;
    background: var(--bg-color);
}

/* ==========================================================================
   Links Section — Minimal & Compact Directory
   ========================================================================== */
#links.page-section {
    width: 100%;
    padding-bottom: 2.5rem;
}

.links-minimal-container {
    width: 100%;
    max-width: 1100px;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Header Row: Title & Quick Search */
.links-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.links-header-text {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.links-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.3px;
}

.links-title i {
    color: var(--accent-color);
    font-size: 1.15rem;
}

.links-count {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent-color);
    background: rgba(88, 166, 255, 0.12);
    border: 1px solid rgba(88, 166, 255, 0.25);
    padding: 2px 8px;
    border-radius: 12px;
}

/* Quick Search Input */
.links-quick-search {
    position: relative;
    width: 220px;
}

.links-quick-search i.fa-magnifying-glass {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.78rem;
    color: var(--text-secondary);
    pointer-events: none;
}

.links-quick-search input {
    width: 100%;
    padding: 0.42rem 1.8rem 0.42rem 2.1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.8rem;
    outline: none;
    box-sizing: border-box;
    transition: var(--transition);
}

.links-quick-search input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
    background: rgba(22, 27, 34, 0.8);
}

body.light-mode .links-quick-search input:focus {
    background: #ffffff;
}

.links-clear-search {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.75rem;
    padding: 2px;
}

.links-clear-search:hover {
    color: var(--text-primary);
}

/* Compact Grid */
.links-compact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.85rem;
    width: 100%;
}

/* Minimal Link Tile */
.link-tile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0.95rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    text-decoration: none;
    box-sizing: border-box;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

body.light-mode .link-tile {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

.link-tile:hover {
    border-color: rgba(88, 166, 255, 0.4);
    background: rgba(88, 166, 255, 0.08);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

body.light-mode .link-tile:hover {
    box-shadow: 0 6px 14px rgba(37, 99, 235, 0.1);
}

.tile-icon {
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: rgba(88, 166, 255, 0.12);
    border: 1px solid rgba(88, 166, 255, 0.2);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.link-tile:hover .tile-icon {
    background: var(--accent-color);
    color: #ffffff;
    box-shadow: 0 0 8px var(--accent-glow);
}

.tile-content {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex: 1;
    min-width: 0;
}

.tile-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    letter-spacing: -0.1px;
}

.tile-desc {
    font-size: 0.72rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tile-external {
    font-size: 0.68rem;
    color: var(--text-secondary);
    opacity: 0.45;
    flex-shrink: 0;
    transition: var(--transition);
}

.link-tile:hover .tile-external {
    color: var(--accent-color);
    opacity: 1;
    transform: translate(1px, -1px);
}

/* Empty State */
.links-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 2.5rem;
    color: var(--text-secondary);
    font-size: 0.88rem;
    background: var(--card-bg);
    border: 1px dashed var(--border-color);
    border-radius: 10px;
}

/* ==========================================================================
   About Section — Clean, Minimalist & Human Design
   ========================================================================== */
#about.page-section {
    width: 100%;
    padding: 0 2rem 2.5rem 0;
}

#about.page-section.active {
    display: flex;
    justify-content: center;
}

.about-card {
    width: 100%;
    max-width: 1040px;
    margin: 0 auto;
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 2.25rem 2.5rem;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    backdrop-filter: blur(15px);
    box-sizing: border-box;
}

body.light-mode .about-card {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

/* 1. Header */
.about-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.about-brand-logo {
    width: 76px;
    height: 76px;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.about-brand-info {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.about-brand-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.5px;
}

.about-brand-desc {
    font-size: 0.93rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    max-width: 680px;
}

/* 2. Balanced 2-Column Dashboard Layout */
.about-dashboard-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: stretch;
}

.about-col-left {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.about-col-right {
    display: flex;
    flex-direction: column;
}

.about-info-block {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.35rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-sizing: border-box;
}

.about-motto-block {
    height: 100%;
    display: flex;
    flex-direction: column;
}

body.light-mode .about-info-block {
    background: rgba(0, 0, 0, 0.02);
}

.about-info-heading {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.about-info-heading i {
    color: var(--accent-color);
    font-size: 1rem;
}

.about-info-heading h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

/* Tool list (used in Tools & Data Sources blocks) */
.about-tool-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.about-tool-list li {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.about-tool-list li i {
    color: var(--accent-color);
    font-size: 0.8rem;
    width: 14px;
    flex-shrink: 0;
}

.about-tool-list a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.about-tool-list a:hover {
    color: var(--accent-color);
}

.about-tag {
    margin-left: auto;
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--accent-color);
    background: rgba(88, 166, 255, 0.1);
    border: 1px solid rgba(88, 166, 255, 0.2);
    padding: 1px 7px;
    border-radius: 5px;
    white-space: nowrap;
}

/* Motto Block (CZ Tweet) */
.about-motto-wrapper {
    flex: 1;
    min-height: 230px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    transition: var(--transition);
}

.about-motto-wrapper:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

.about-motto-img {
    width: 100%;
    height: 100%;
    max-height: 260px;
    object-fit: contain;
    display: block;
    border-radius: 6px;
}

/* Developer block */
.dev-profile-row {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.dev-avatar {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.dev-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.dev-name {
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.dev-role {
    font-size: 0.74rem;
    color: var(--text-secondary);
}

.dev-links {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: auto;
}

.dev-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.85rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

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

.dev-btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.dev-btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

body.light-mode .dev-btn-secondary {
    background: rgba(0, 0, 0, 0.04);
}

.dev-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

/* 3. Footer */
.about-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-size: 0.82rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
    flex-wrap: wrap;
}

.footer-bullet {
    color: var(--border-color);
}

@media (max-width: 1024px) {
    .tools-layout {
        grid-template-columns: 1fr;
    }
    .market-sidebar {
        max-width: 650px;
        margin: 0 auto;
        position: static;
        max-height: none;
    }
    .market-sidebar-card {
        border-right: 1px solid var(--border-color);
        border-radius: 14px;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
        overflow: visible;
    }
    .market-coins-list {
        flex: none;
        overflow-y: visible;
        max-height: none;
    }
    .tools-grid {
        padding-right: 0;
    }
    main {
        padding: 2rem 1.25rem;
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        padding: 1rem 1.25rem;
    }
    .header-actions {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        flex-wrap: wrap;
        gap: 0.75rem;
    }
    .tools-grid {
        grid-template-columns: 1fr;
    }
    main {
        padding: 1.5rem 1rem;
    }
    .about-card {
        padding: 1.5rem 1.25rem;
        gap: 1.5rem;
    }
    .about-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .about-dashboard-layout {
        grid-template-columns: 1fr;
    }
    #about.page-section {
        padding-right: 0;
    }
    .dev-links {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 1024px) {
    .links-compact-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .links-compact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .links-header-row {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }
    .links-quick-search {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .links-compact-grid {
        grid-template-columns: 1fr;
    }
}