:root {
    --bg-color: #0d0d0f;
    --surface-color: #1a1a1f;
    --surface-color-hover: #23232a;
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0ab;
    --border-color: #2a2a35;

    /* Elegant, muted accent colors */
    --accent-blue: #4a88cc;
    --accent-blue-hover: #5b9ce0;
    --similarity-high: #4acc88;
    --similarity-med: #ccaa4a;
    --similarity-low: #cc4a4a;

    --transition-speed: 0.3s;
    --border-radius: 8px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: 2rem 1rem;
    overflow-x: hidden;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    /* Subtle silver gradient */
    background: linear-gradient(135deg, #ffffff 0%, #a0a0ab 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-weight: 300;
}

.controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.btn {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 1px solid transparent;
    outline: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn.primary:not(:disabled):hover {
    background-color: var(--accent-blue-hover);
    box-shadow: 0 4px 12px rgba(74, 136, 204, 0.3);
}

.btn.secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn.secondary:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.05);
}

.btn.auto {
    background-color: transparent;
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

.btn.auto:hover:not(:disabled) {
    background-color: rgba(66, 184, 131, 0.1);
    box-shadow: 0 4px 15px rgba(66, 184, 131, 0.2);
    transform: translateY(-2px);
}

.btn.danger {
    background-color: transparent;
    color: #ff4d4d;
    border: 1px solid #ff4d4d;
}

.btn.danger:hover:not(:disabled) {
    background-color: rgba(255, 77, 77, 0.1);
    box-shadow: 0 4px 15px rgba(255, 77, 77, 0.2);
    transform: translateY(-2px);
}

.auto-search-wrapper {
    display: inline-flex;
    gap: 0.5rem;
    align-items: center;
}

.btn.icon-btn {
    padding: 0.75rem;
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.btn.icon-btn:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
    border-color: var(--text-secondary);
    transform: rotate(45deg);
}

.btn.icon-btn.active {
    background-color: rgba(74, 136, 204, 0.1);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

/* Advanced Search Panel */
.advanced-search-panel {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: 500px;
    opacity: 1;
}

.advanced-search-panel.hidden {
    max-height: 0;
    opacity: 0;
    margin-bottom: 0;
    border-width: 0;
}

.panel-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.setting-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.setting-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.setting-value {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--accent-blue);
    font-weight: 600;
}

/* Custom Range Sliders */
input[type=range] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    background: transparent;
}

input[type=range]:focus {
    outline: none;
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
    background: var(--bg-color);
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

input[type=range]::-webkit-slider-thumb {
    height: 18px;
    width: 18px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    margin-top: -7px;
    box-shadow: 0 0 10px rgba(74, 136, 204, 0.5);
    transition: transform 0.1s;
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

input[type=range]::-webkit-slider-thumb:active {
    transform: scale(0.9);
}

input[type=range]::-moz-range-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
    background: var(--bg-color);
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

input[type=range]::-moz-range-thumb {
    height: 18px;
    width: 18px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px rgba(74, 136, 204, 0.5);
}

/* Warning State for Speed Slider */
.setting-value.warning {
    color: #ffaa00;
}

.setting-value.danger {
    color: #ff4d4d;
}

/* Results Summary - Split Layout */
.results-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 3rem;
    transition: all 0.5s ease;
    opacity: 0.5;
    overflow: hidden;
    min-height: 250px;
}

.results-summary.active {
    opacity: 1;
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(74, 136, 204, 0.1);
}

.results-summary.traveling {
    opacity: 1;
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
}

/* Left Panel: Animation Container */
.animation-container {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 250px;
    background: radial-gradient(circle at center, #1a1a24 0%, #0d0d0f 100%);
    border-right: 1px solid var(--border-color);
    overflow: hidden;
    z-index: 1;
}

.travel-animation {
    width: 100%;
    height: 100%;
    position: relative;
}

/* Rocket Styles */
.rocket {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 64px;
    height: 64px;
    color: #e0e0e5;
    z-index: 3;
    transition: all 1.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Traveling: Center left, vibrating */
.traveling .rocket {
    transform: translate(-100px, -50%) rotate(45deg);
    animation:
        rocketFlyIn 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards,
        rocketVibrate 0.1s infinite 1s;
}

/* Arrived: Move close to the planet */
.arrived .rocket {
    transform: translate(-50px, -50%) rotate(45deg);
    animation: none;
}

/* Rocket Thruster Flame */
.flame {
    position: absolute;
    bottom: -10px;
    left: 10px;
    width: 12px;
    height: 25px;
    background: linear-gradient(to bottom, #ffaa00, #ff3300, transparent);
    border-radius: 50% 50% 20% 20%;
    transform: rotate(45deg);
    opacity: 0;
    filter: blur(2px);
}

.traveling .flame {
    opacity: 1;
    animation: flicker 0.1s infinite alternate;
}

/* Planet Target (Arrival) */
.planet-target {
    position: absolute;
    right: 50%;
    top: 50%;
    transform: translate(150px, -50%) scale(0.1);
    width: 140px;
    height: 140px;
    opacity: 0;
    z-index: 2;
    transition: all 1.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.arrived .planet-target {
    opacity: 1;
    transform: translate(60px, -50%) scale(1);
}

/* Warp Lines */
.warp-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    border-radius: 50%;
    opacity: 0;
}

.traveling .warp-line {
    animation: warpSpeed linear infinite;
}

/* Passing Planets */
.passing-planet {
    position: absolute;
    border-radius: 50%;
    opacity: 0;
    z-index: 1;
}

.traveling .passing-planet {
    animation: warpSpeed linear infinite;
}

/* Right Panel: Result Container */
.result-container {
    position: relative;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 250px;
}

/* Traveling Message */
.traveling-message {
    position: absolute;
    text-align: center;
    opacity: 0;
    z-index: 1;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.traveling-message h3 {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
}

.traveling-message p {
    color: var(--text-secondary);
}

.traveling .traveling-message {
    opacity: 1;
}

.loading-dots span {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin: 0 4px;
    margin-top: 1rem;
    background-color: var(--text-secondary);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes bounce {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1);
    }
}

/* Result Content */
.result-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 1;
    transition: opacity 0.5s ease;
    width: 100%;
}

.traveling .result-content {
    opacity: 0;
    pointer-events: none;
}

.similarity-circle {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
}

.circular-chart {
    display: block;
    margin: 0 auto;
    max-width: 80%;
    max-height: 250px;
}

.circle-bg {
    fill: none;
    stroke: var(--bg-color);
    stroke-width: 2.5;
}

.circle {
    fill: none;
    stroke-width: 2.5;
    stroke-linecap: round;
    transition: stroke-dasharray 1.5s ease-out, stroke 0.5s ease;
}

.percentage {
    fill: var(--text-primary);
    font-size: 0.4em;
    font-weight: 300;
    text-anchor: middle;
}

.result-text h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.result-text p {
    color: var(--text-secondary);
    font-weight: 300;
}

/* Parameters Grid */
.parameters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.parameter-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: all var(--transition-speed);
    cursor: pointer;
    /* Indicates it's clickable */
    position: relative;
    opacity: 0.5;
    /* Inactive by default */
    transform: scale(0.98);
}

.parameter-card.active {
    border-color: rgba(74, 136, 204, 0.5);
    /* Blue glow */
    background-color: rgba(26, 26, 31, 0.95);
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 4px 20px rgba(74, 136, 204, 0.15);
}

.parameter-card:hover {
    border-color: rgba(255, 255, 255, 0.3);
}

.parameter-card.active:hover {
    border-color: rgba(74, 136, 204, 0.8);
}

.card-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    pointer-events: none;
    /* Let the card handle the click */
}

.param-info {
    flex: 1;
    pointer-events: auto;
    /* So tooltips still work on hover */
}

.param-name {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.2rem;
    position: relative;
    display: inline-block;
    cursor: help;
}

/* Tooltip Styles */
.param-name .tooltip {
    visibility: hidden;
    width: 220px;
    background-color: #2a2a35;
    color: var(--text-primary);
    text-align: center;
    border-radius: 6px;
    padding: 8px 12px;
    position: absolute;
    z-index: 10;
    bottom: 125%;
    /* Position above the text */
    left: 50%;
    margin-left: -110px;
    /* Center tooltip */
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.75rem;
    font-weight: 400;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.param-name .tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    /* Arrow pointing down */
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #2a2a35 transparent transparent transparent;
}

.param-name:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

.param-symbol {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: monospace;
}

.card-body {
    opacity: 0.3;
    transition: opacity var(--transition-speed);
    pointer-events: none;
    /* Ignore clicks inside the body to avoid interfering with card click */
}

.parameter-card.active .card-body {
    opacity: 1;
}

.parameter-card.active .card-body {
    opacity: 1;
}

.values-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.value-block {
    display: flex;
    flex-direction: column;
}

.value-block.result-block {
    text-align: right;
}

.label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
}

.value {
    font-size: 1.1rem;
    font-family: monospace;
    font-weight: 400;
}

.similarity-bar-container {
    height: 4px;
    background-color: var(--bg-color);
    border-radius: 2px;
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.similarity-bar {
    height: 100%;
    background-color: var(--text-secondary);
    border-radius: 2px;
    transition: width 1s ease-out, background-color 0.5s ease;
}

.param-similarity-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: right;
}

/* Toggle Switch Styling */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 2px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-secondary);
    transition: .4s;
    border-radius: 50%;
}

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

input:focus+.slider {
    box-shadow: 0 0 1px var(--accent-blue);
}

input:checked+.slider:before {
    transform: translateX(20px);
    background-color: #ffffff;
    box-shadow: -2px 0 5px rgba(0, 0, 0, 0.2);
}

/* Animations */
@keyframes spinNumber {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }

    50% {
        opacity: 1;
        transform: translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateY(-10px);
    }
}

@keyframes rocketFlyIn {
    0% {
        transform: translate(-300px, -50%) rotate(45deg);
    }

    100% {
        transform: translate(-100px, -50%) rotate(45deg);
    }
}

@keyframes rocketVibrate {
    0% {
        transform: translate(calc(-100px - 1px), calc(-50% - 1px)) rotate(45deg);
    }

    50% {
        transform: translate(calc(-100px + 1px), calc(-50% + 1px)) rotate(45deg);
    }

    100% {
        transform: translate(calc(-100px - 1px), calc(-50% - 1px)) rotate(45deg);
    }
}

@keyframes flicker {
    0% {
        transform: rotate(45deg) scaleY(1);
        opacity: 0.8;
    }

    100% {
        transform: rotate(45deg) scaleY(1.3);
        opacity: 1;
    }
}

@keyframes warpSpeed {
    0% {
        transform: translateX(100vw);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        transform: translateX(-100vw);
        opacity: 0;
    }
}

.rolling .rolled-value {
    animation: spinNumber 0.1s infinite;
    color: var(--text-secondary);
}

/* Utility classes for similarity colors */
.color-high {
    stroke: var(--similarity-high);
    color: var(--similarity-high) !important;
    background-color: var(--similarity-high);
}

.color-med {
    stroke: var(--similarity-med);
    color: var(--similarity-med) !important;
    background-color: var(--similarity-med);
}

.color-low {
    stroke: var(--similarity-low);
    color: var(--similarity-low) !important;
    background-color: var(--similarity-low);
}

.text-color-high {
    color: var(--similarity-high) !important;
}

.text-color-med {
    color: var(--similarity-med) !important;
}

.text-color-low {
    color: var(--similarity-low) !important;
}

@media (max-width: 768px) {
    .results-summary {
        grid-template-columns: 1fr;
        grid-template-rows: 250px auto;
    }

    .animation-container {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .result-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}