/* Collatz Conjecture - Component Styles */

:root {
    --cc-tool: #ea580c;
    --cc-tool-dark: #c2410c;
    --cc-gradient: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
    --cc-light: #fff7ed;
}
[data-theme="dark"] {
    --cc-light: rgba(234, 88, 12, 0.15);
}

/* ===== Narrow Input Column Layout Override ===== */
.cc-layout.tool-page-container {
    grid-template-columns: 240px minmax(0, 1fr) 300px;
    gap: 1.25rem;
}
@media (max-width: 1024px) {
    .cc-layout.tool-page-container {
        grid-template-columns: 220px minmax(0, 1fr);
    }
}
@media (max-width: 900px) {
    .cc-layout.tool-page-container {
        grid-template-columns: 1fr;
    }
}
.cc-layout .tool-card-header {
    padding: 0.625rem 0.75rem;
    font-size: 0.8125rem;
}
.cc-layout .tool-card-body {
    padding: 0.75rem;
}
.cc-layout .tool-form-group {
    margin-bottom: 0.5rem;
}
.cc-layout .tool-form-label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.25rem;
}
.cc-layout .tool-form-input {
    padding: 0.4375rem 0.5rem;
    font-size: 0.8125rem;
}
.cc-layout .tool-action-btn {
    padding: 0.5rem;
    font-size: 0.75rem;
    margin-top: 0;
}

/* ===== Step List Display ===== */
.cc-step-list {
    border: 1.5px solid var(--border);
    border-radius: 0.625rem;
    overflow: hidden;
    background: var(--bg-primary);
}
.cc-step-header {
    display: grid;
    grid-template-columns: 3rem 3.5rem 1fr 6rem;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border-bottom: 1.5px solid var(--border);
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}
.cc-step-body {
    max-height: 320px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--cc-tool) transparent;
}
.cc-step-body::-webkit-scrollbar {
    width: 5px;
}
.cc-step-body::-webkit-scrollbar-track {
    background: transparent;
}
.cc-step-body::-webkit-scrollbar-thumb {
    background: var(--cc-tool);
    border-radius: 3px;
}
.cc-step-row {
    display: grid;
    grid-template-columns: 3rem 3.5rem 1fr 6rem;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    align-items: center;
    border-bottom: 1px solid var(--border);
    animation: cc-rowSlide 0.2s ease-out;
    transition: background 0.1s;
}
.cc-step-row:last-child {
    border-bottom: none;
}
.cc-step-row:hover {
    background: var(--bg-secondary);
}
.cc-step-row.cc-step-peak {
    background: #fffbeb;
}
[data-theme="dark"] .cc-step-row.cc-step-peak {
    background: rgba(245, 158, 11, 0.08);
}
.cc-step-row.cc-step-done {
    background: #f0fdf4;
}
[data-theme="dark"] .cc-step-row.cc-step-done {
    background: rgba(34, 197, 94, 0.08);
}

/* Step number */
.cc-step-num {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-align: right;
}

/* Operation badge */
.cc-step-op {
    font-size: 0.625rem;
    font-weight: 700;
    font-family: var(--font-mono);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    text-align: center;
    line-height: 1.4;
}
.cc-op-start {
    background: var(--cc-light);
    color: var(--cc-tool);
}
.cc-op-even {
    background: #eff6ff;
    color: #2563eb;
}
[data-theme="dark"] .cc-op-even {
    background: rgba(37, 99, 235, 0.15);
    color: #60a5fa;
}
.cc-op-odd {
    background: #fff7ed;
    color: var(--cc-tool);
}
[data-theme="dark"] .cc-op-odd {
    background: rgba(234, 88, 12, 0.15);
    color: #fb923c;
}

/* Value */
.cc-step-val {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
}
.cc-val-peak {
    color: #d97706;
    font-weight: 700;
}
[data-theme="dark"] .cc-val-peak {
    color: #fbbf24;
}
.cc-val-done {
    color: #16a34a;
    font-weight: 700;
}
[data-theme="dark"] .cc-val-done {
    color: #4ade80;
}

/* Magnitude bar */
.cc-step-bar-wrap {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}
.cc-step-bar {
    height: 100%;
    background: var(--cc-tool);
    border-radius: 3px;
    transition: width 0.2s ease-out;
    min-width: 0;
}
.cc-bar-peak {
    background: #f59e0b;
}
.cc-bar-done {
    background: #22c55e;
}

@keyframes cc-rowSlide {
    from {
        opacity: 0;
        transform: translateX(-0.5rem);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== Stats Panel ===== */
.cc-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.625rem;
    margin-top: 0.75rem;
}
.cc-stat-card {
    background: var(--bg-secondary);
    border: 1.5px solid var(--border);
    border-radius: 0.625rem;
    padding: 0.875rem;
    text-align: center;
    transition: all 0.15s;
}
.cc-stat-card:hover {
    border-color: var(--cc-tool);
}
.cc-stat-label {
    font-size: 0.6875rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}
.cc-stat-value {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--cc-tool);
    font-family: var(--font-mono);
}
[data-theme="dark"] .cc-stat-card {
    background: var(--bg-tertiary);
}

/* ===== Record Number Buttons ===== */
.cc-record-numbers {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}
.cc-record-btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.625rem;
    font-weight: 500;
    border-radius: 2rem;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    font-family: var(--font-mono);
}
.cc-record-btn:hover {
    background: var(--cc-light);
    color: var(--cc-tool);
    border-color: var(--cc-tool);
}
[data-theme="dark"] .cc-record-btn {
    background: var(--bg-tertiary);
}

/* ===== Speed Slider ===== */
.cc-speed-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0;
}
.cc-speed-label {
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}
.cc-speed-slider {
    flex: 1;
    -webkit-appearance: none;
    height: 4px;
    border-radius: 2px;
    background: var(--border);
    outline: none;
}
.cc-speed-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--cc-tool);
    cursor: pointer;
}
.cc-speed-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--cc-tool);
    cursor: pointer;
    border: none;
}
.cc-speed-value {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--cc-tool);
    min-width: 2rem;
    text-align: right;
}

/* ===== Action Buttons Row ===== */
.cc-action-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 0.375rem;
}
.cc-action-row .tool-action-btn {
    white-space: nowrap;
}
.cc-btn-stop {
    background: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
    border: 1.5px solid var(--border) !important;
    padding: 0.5rem 0.625rem !important;
}
.cc-btn-stop:hover {
    border-color: var(--cc-tool) !important;
    color: var(--cc-tool) !important;
}
.cc-btn-reset {
    background: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
    border: 1.5px solid var(--border) !important;
    padding: 0.5rem 0.625rem !important;
}
.cc-btn-reset:hover {
    border-color: var(--text-muted) !important;
}

/* ===== Graph Container ===== */
.cc-graph-container {
    margin-top: 0.75rem;
    border: 1.5px solid var(--border);
    border-radius: 0.75rem;
    overflow: hidden;
    background: var(--bg-primary);
    min-height: 340px;
}
.cc-graph-container:empty {
    display: none;
}

/* ===== Rule Box ===== */
.cc-rule-box {
    background: var(--cc-light);
    border: 1.5px solid rgba(234, 88, 12, 0.2);
    border-left: 4px solid var(--cc-tool);
    border-radius: 0.5rem;
    padding: 1rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--cc-tool-dark);
    line-height: 1.8;
}
[data-theme="dark"] .cc-rule-box {
    background: rgba(234, 88, 12, 0.08);
    border-color: rgba(234, 88, 12, 0.2);
    border-left-color: var(--cc-tool);
    color: #fb923c;
}

/* ===== Famous Sequences Grid ===== */
.cc-famous-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin: 1rem 0;
}
.cc-famous-card {
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 0.5rem;
    border-left: 3px solid var(--cc-tool);
}
.cc-famous-card h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.375rem;
}
.cc-famous-card p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    font-family: var(--font-mono);
}

/* ===== Toolbar ===== */
.cc-result-toolbar {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.625rem 0.75rem;
    border-top: 1.5px solid var(--border);
    background: var(--bg-secondary);
    border-radius: 0 0 0.75rem 0.75rem;
    flex-shrink: 0;
}
.cc-toolbar-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.375rem 0.625rem;
    font-size: 0.6875rem;
    font-weight: 600;
    font-family: var(--font-sans);
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
    line-height: 1;
}
.cc-toolbar-btn:hover {
    background: var(--cc-light);
    color: var(--cc-tool);
    border-color: var(--cc-tool);
}
[data-theme="dark"] .cc-result-toolbar {
    background: var(--bg-tertiary);
}
[data-theme="dark"] .cc-toolbar-btn {
    background: var(--bg-secondary);
    border-color: var(--border);
    color: var(--text-secondary);
}
[data-theme="dark"] .cc-toolbar-btn:hover {
    background: var(--cc-light);
    color: var(--cc-tool);
    border-color: var(--cc-tool);
}

/* ===== Status Indicator ===== */
.cc-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 0;
}
.cc-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}
.cc-status-dot.cc-running {
    background: #22c55e;
    animation: cc-pulse 1s ease-in-out infinite;
}
.cc-status-dot.cc-done {
    background: var(--cc-tool);
}
@keyframes cc-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ===== Scroll Animations ===== */
.cc-anim {
    opacity: 0;
    transform: translateY(1rem);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.cc-anim.cc-visible {
    opacity: 1;
    transform: translateY(0);
}
.cc-anim-d1 { transition-delay: 0.1s; }
.cc-anim-d2 { transition-delay: 0.2s; }
.cc-anim-d3 { transition-delay: 0.3s; }
.cc-anim-d4 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
    .cc-anim {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .cc-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 640px) {
    .cc-stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    .cc-famous-grid {
        grid-template-columns: 1fr;
    }
    .cc-step-header,
    .cc-step-row {
        grid-template-columns: 2.5rem 3rem 1fr 4rem;
        gap: 0.25rem;
        padding: 0.375rem 0.5rem;
    }
    .cc-step-val {
        font-size: 0.75rem;
    }
    .cc-graph-container {
        min-height: 250px;
    }
}