/* --- TRADING TERMINAL AESTHETICS --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Deep blacks and sharp greys */
    --bg-base: #050507;
    --bg-panel: #0a0a0d;
    --bg-input: #121216;
    --bg-hover: #1a1a20;

    --border-dim: #1d1d24;
    --border-bright: #333340;

    /* Neon Accents */
    --accent-primary: #00ffcc;
    /* Cyan */
    --accent-secondary: #ff0055;
    /* Magenta */
    --accent-tertiary: #ccff00;
    /* Lime */

    /* Text */
    --text-main: #ffffff;
    --text-muted: #6b6b80;
    --text-alert: #ff3333;

    /* Greeks Config */
    --color-payoff: #ffffff;
    --color-price: #00ffcc;
    --color-delta: #33ff33;
    --color-gamma: #cc33ff;
    --color-vega: #ffcc00;
    --color-theta: #ff3333;
    --color-rho: #00ccff;

    --font-mono: 'Inter', monospace;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg-base);
    color: var(--text-main);
    overflow: hidden;
    height: 100vh;
    font-size: 13px;
    letter-spacing: 0.5px;
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

::-webkit-scrollbar-track {
    background: var(--bg-base);
}

::-webkit-scrollbar-thumb {
    background: var(--border-bright);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* --- TERMINAL GRID LAYOUT --- */
.terminal-grid {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    grid-template-rows: 50px 1fr;
    grid-template-areas:
        "header header header"
        "left center right";
    height: 100vh;
    width: 100vw;
}

/* --- HEADER --- */
.terminal-header {
    grid-area: header;
    background-color: var(--bg-base);
    border-bottom: 1px solid var(--border-dim);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-accent {
    color: var(--accent-primary);
    font-weight: 900;
    font-size: 16px;
    letter-spacing: 2px;
}

.terminal-header h1 {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
}

.stat-box {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 600;
    background: var(--bg-input);
    padding: 4px 10px;
    border: 1px solid var(--border-dim);
}

.stat-label {
    color: var(--text-muted);
}

.status-ok {
    color: var(--accent-primary);
}

/* --- PANELS --- */
.panel {
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-dim);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.panel:last-child {
    border-right: none;
    border-left: 1px solid var(--border-dim);
}

.left-panel {
    grid-area: left;
}

.center-panel {
    grid-area: center;
    background-color: var(--bg-base);
    overflow-y: auto;
}

.right-panel {
    grid-area: right;
}

.panel-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-dim);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-base);
    position: sticky;
    top: 0;
    z-index: 10;
}

.secondary-header {
    border-top: 1px solid var(--border-dim);
}

.panel-header h2 {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.leg-count {
    background: var(--accent-primary);
    color: var(--bg-base);
    padding: 2px 6px;
    font-size: 10px;
    font-weight: 800;
}

.panel-section {
    padding: 20px;
}

.section-title {
    font-size: 10px;
    color: var(--text-muted);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

/* --- FORM CONTROLS --- */
.form-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.form-row {
    display: flex;
    gap: 10px;
    width: 100%;
}

.input-cell {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.input-cell.half {
    width: calc(50% - 5px);
}

.input-cell.full {
    width: 100%;
}

.input-cell label {
    font-size: 9px;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.sharp-input,
.sharp-select {
    background: var(--bg-input);
    border: 1px solid var(--border-dim);
    color: var(--text-main);
    padding: 8px 10px;
    font-family: var(--font-mono);
    font-size: 12px;
    outline: none;
    transition: all 0.2s;
    border-radius: 0;
    /* No bubbly borders */
    width: 100%;
}

.sharp-input:focus,
.sharp-select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 5px rgba(0, 255, 204, 0.2);
}

/* Hide arrow for number input */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.range-group {
    display: flex;
    align-items: center;
    gap: 5px;
}

.range-group .sharp-input {
    width: 45%;
    text-align: center;
}

.range-group .separator {
    color: var(--text-muted);
    font-size: 10px;
}

.sharp-btn {
    background: transparent;
    border: 1px solid var(--border-bright);
    color: var(--text-main);
    padding: 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 1px;
    width: 100%;
}

.sharp-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.action-btn {
    margin-top: 5px;
    background: var(--bg-input);
}

/* --- PORTFOLIO LEGS --- */
.legs-list {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    padding: 10px 20px;
    gap: 8px;
}

.leg-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-base);
    border: 1px solid var(--border-dim);
    padding: 8px 12px;
    border-left: 2px solid var(--border-bright);
}

.leg-row:hover {
    border-color: var(--border-bright);
}

.leg-row.Call {
    border-left-color: var(--color-price);
}

.leg-row.Put {
    border-left-color: var(--color-theta);
}

.leg-text {
    font-size: 11px;
    font-weight: 600;
}

.leg-qty {
    color: var(--text-muted);
}

.del-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
}

.del-btn:hover {
    color: var(--text-alert);
}

/* --- ACTIVE METRICS TOGGLES --- */
.metrics-toggles {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.metric-toggle {
    display: block;
    cursor: pointer;
}

.metric-toggle input {
    display: none;
}

.toggle-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-input);
    border: 1px solid var(--border-dim);
    padding: 10px 15px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-muted);
    transition: all 0.2s;
}

/* Colors for active toggles */
.metric-toggle input:checked+.toggle-box {
    color: var(--bg-base);
}

.tgl-payoff input:checked+.toggle-box {
    background: var(--color-payoff);
    border-color: var(--color-payoff);
    color: var(--bg-base);
}

.tgl-price input:checked+.toggle-box {
    background: var(--color-price);
    border-color: var(--color-price);
    color: var(--bg-base);
}

.tgl-delta input:checked+.toggle-box {
    background: var(--color-delta);
    border-color: var(--color-delta);
    color: var(--bg-base);
}

.tgl-gamma input:checked+.toggle-box {
    background: var(--color-gamma);
    border-color: var(--color-gamma);
    color: var(--text-main);
}

.tgl-vega input:checked+.toggle-box {
    background: var(--color-vega);
    border-color: var(--color-vega);
    color: var(--bg-base);
}

.tgl-theta input:checked+.toggle-box {
    background: var(--color-theta);
    border-color: var(--color-theta);
    color: var(--text-main);
}

.tgl-rho input:checked+.toggle-box {
    background: var(--color-rho);
    border-color: var(--color-rho);
    color: var(--bg-base);
}

.metric-toggle:hover .toggle-box {
    border-color: var(--border-bright);
}

/* --- CHART AREA --- */
.chart-header {
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-dim);
}

.chart-title h2 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: 1px;
}

.chart-title .subtitle {
    font-size: 10px;
    color: var(--accent-primary);
    letter-spacing: 1px;
}

.chart-wrapper {
    position: relative;
    padding: 20px;
    height: 450px;
    min-height: 350px;
}

/* --- SLIDER CONTROLS --- */
.slider-input-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.slider-input-col {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 45%;
}

.sharp-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--bg-input);
    border: 1px solid var(--border-dim);
    outline: none;
}

.sharp-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 16px;
    background: var(--accent-primary);
    cursor: pointer;
    border-radius: 0;
    /* Keep it blocky */
}

/* --- 3RD ORDER GREEKS TOGGLES --- */
.tgl-speed input:checked+.toggle-box {
    background: #ffaa00;
    border-color: #ffaa00;
    color: var(--bg-base);
}

.tgl-speed input:checked+.toggle-box .math-sub {
    color: rgba(0, 0, 0, 0.6);
}

.tgl-zomma input:checked+.toggle-box {
    background: #00aaff;
    border-color: #00aaff;
    color: var(--bg-base);
}

.tgl-zomma input:checked+.toggle-box .math-sub {
    color: rgba(0, 0, 0, 0.6);
}

.tgl-color input:checked+.toggle-box {
    background: #ff00aa;
    border-color: #ff00aa;
    color: var(--bg-base);
}

.tgl-color input:checked+.toggle-box .math-sub {
    color: rgba(0, 0, 0, 0.6);
}

.tgl-ultima input:checked+.toggle-box {
    background: #aaff00;
    border-color: #aaff00;
    color: var(--bg-base);
}

.tgl-ultima input:checked+.toggle-box .math-sub {
    color: rgba(0, 0, 0, 0.6);
}

/* --- 2ND ORDER CROSS GREEKS TOGGLES (Vanna, Volga) --- */
.tgl-vanna input:checked+.toggle-box {
    background: #ff6600 !important;
    border-color: #ff6600 !important;
    color: var(--bg-base);
}

.tgl-vanna input:checked+.toggle-box .math-sub {
    color: rgba(0, 0, 0, 0.6);
}

.tgl-volga input:checked+.toggle-box {
    background: #aa00ff !important;
    border-color: #aa00ff !important;
    color: var(--text-main);
}

.tgl-volga input:checked+.toggle-box .math-sub {
    color: rgba(255, 255, 255, 0.6);
}

/* --- MATH NOTATION --- */
.math-sub {
    font-size: 11px;
    font-family: "Times New Roman", Times, serif;
    font-style: italic;
    color: var(--text-dim);
    letter-spacing: 0;
}

.metric-toggle input:checked+.toggle-box .math-sub {
    color: rgba(0, 0, 0, 0.6);
}

/* --- 3D SURFACE SECTION --- */
.surface3d-section {
    border-top: 1px solid var(--border-dim);
}

.surface3d-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.surface3d-controls {
    display: flex;
    align-items: flex-end;
    gap: 10px;
}

.surface3d-controls .input-cell {
    min-width: 110px;
}

.surface3d-controls label {
    font-size: 9px;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.surface3d-controls .sharp-select {
    padding: 6px 8px;
    font-size: 11px;
}

.surface3d-container {
    width: 100%;
    height: 500px;
    min-height: 400px;
    background: var(--bg-base);
}

/* Barrier level visible transition */
.barrier-level-cell {
    transition: all 0.2s ease;
}