:root {
    color-scheme: dark;
    --background: #060a12;
    --surface: #0b1628;
    --surface-raised: #11243f;
    --text: #eef6ff;
    --muted: #a9bad0;
    --gold: #f1c75b;
    --gold-soft: #ffe49a;
    --line: rgba(139, 190, 236, 0.24);
    --line-gold: rgba(241, 199, 91, 0.5);
    --shadow: 0 1rem 1.5rem -1rem rgba(0, 0, 0, 0.85);
    --radius: 0.55rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-width: 20rem;
    background: var(--background);
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 50% 0, rgba(40, 91, 151, 0.22), transparent 36rem),
        var(--background);
    font: 400 1rem/1.55 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
    outline: 3px solid var(--gold);
    outline-offset: 3px;
}

img {
    display: block;
    max-width: 100%;
}

.calculator-page {
    width: min(88rem, calc(100% - 2rem));
    margin-inline: auto;
    padding-block: clamp(2rem, 6vw, 4.5rem);
}

.calculator-heading {
    display: grid;
    grid-template-columns: minmax(18rem, 0.72fr) minmax(30rem, 1.28fr);
    align-items: end;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.calculator-kicker {
    margin: 0 0 0.45rem;
    color: var(--gold-soft);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.calculator-heading h1 {
    margin: 0;
    font: 700 clamp(2.3rem, 6vw, 4.2rem)/1 Georgia, serif;
    letter-spacing: 0.02em;
}

.calculator-heading__lede {
    max-width: 38rem;
    margin: 0.8rem 0 0;
    color: var(--muted);
}

.class-selector {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.45rem;
}

.class-selector__item {
    display: grid;
    min-width: 0;
    place-items: center;
    gap: 0.3rem;
    padding: 0.55rem 0.3rem;
    border: 1px solid var(--line);
    border-radius: 0.4rem;
    color: var(--muted);
    background: rgba(9, 22, 41, 0.88);
    font-size: 0.68rem;
    font-weight: 700;
    text-decoration: none;
}

.class-selector__item:hover,
.class-selector__item.is-active {
    border-color: var(--line-gold);
    color: var(--gold-soft);
    background: rgba(30, 79, 137, 0.36);
}

.class-selector__item img {
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 0.35rem;
}

.class-selector__item span {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.talent-calculator {
    position: relative;
    min-height: 28rem;
    overflow: visible;
    border: 1px solid var(--line-gold);
    border-radius: var(--radius);
    background: rgba(3, 11, 25, 0.95);
    box-shadow: var(--shadow);
}

.talent-loading,
.calculator-error {
    display: grid;
    min-height: 28rem;
    place-items: center;
    align-content: center;
    gap: 0.4rem;
    color: var(--muted);
    text-align: center;
}

.talent-loading span {
    color: var(--gold);
    font-size: 2rem;
}

.calculator-toolbar {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 1.2rem;
    margin: 0.75rem 0.75rem 0;
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--line);
    border-radius: 0.4rem;
    background: linear-gradient(180deg, rgba(17, 45, 81, 0.96), rgba(6, 19, 39, 0.98));
}

.calculator-identity {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.calculator-identity img,
.talent-tree__header img {
    width: 2.65rem;
    height: 2.65rem;
    border: 1px solid var(--line-gold);
    border-radius: 0.45rem;
}

.calculator-identity strong {
    color: var(--gold-soft);
}

.calculator-metrics {
    display: flex;
    justify-content: flex-end;
    gap: clamp(1.2rem, 4vw, 3rem);
}

.calculator-metrics > span {
    display: grid;
    text-align: center;
}

.calculator-metrics small {
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.calculator-metrics strong {
    font-size: 1.15rem;
}

.calculator-metrics b {
    color: var(--gold-soft);
}

.talent-trees {
    display: grid;
    grid-template-columns: repeat(3, minmax(17rem, 1fr));
    gap: 0.75rem;
    padding: 0.75rem;
}

.talent-tree {
    min-width: 0;
    overflow: visible;
    border: 1px solid var(--line);
    border-radius: 0.4rem;
    background: rgba(4, 14, 29, 0.94);
}

.talent-tree__header {
    display: flex;
    min-height: 4.2rem;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem;
    border-bottom: 1px solid var(--line);
    background: rgba(7, 25, 48, 0.92);
}

.talent-tree__header span {
    display: grid;
    min-width: 0;
}

.talent-tree__header strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.talent-tree__header small {
    color: var(--muted);
    font-size: 0.72rem;
}

.talent-tree__header b {
    color: var(--gold-soft);
}

.talent-board {
    overflow-x: auto;
    padding: 1rem 0.7rem 1.2rem;
    background-position: center;
    background-size: cover;
}

.talent-grid {
    position: relative;
    display: grid;
    width: max-content;
    min-width: 100%;
    min-height: 44rem;
    grid-template-columns: repeat(4, 3.2rem);
    grid-template-rows: repeat(11, 3.2rem);
    justify-content: center;
    gap: 1.2rem;
}

.talent-cell {
    position: relative;
    z-index: 2;
    width: 3.2rem;
    height: 3.2rem;
}

.talent-node {
    position: relative;
    z-index: 2;
    width: 3.2rem;
    height: 3.2rem;
    padding: 0;
    overflow: visible;
    border: 2px solid #596573;
    border-radius: 0.45rem;
    background: #07101d;
    box-shadow: 0 0.3rem 0.75rem rgba(0, 0, 0, 0.7);
    cursor: pointer;
    touch-action: manipulation;
}

.talent-node img {
    width: 100%;
    height: 100%;
    border-radius: 0.32rem;
    filter: grayscale(0.92) brightness(0.5);
}

.talent-node.is-available {
    border-color: #46d573;
    box-shadow: 0 0 0.75rem rgba(70, 213, 115, 0.35);
}

.talent-node.is-available img {
    filter: grayscale(0.2) brightness(0.88);
}

.talent-node.is-partial {
    border-color: #52e780;
}

.talent-node.is-partial img,
.talent-node.is-maxed img {
    filter: none;
}

.talent-node.is-maxed {
    border-color: var(--gold);
    box-shadow: 0 0 0.85rem rgba(241, 199, 91, 0.38);
}

.talent-node.is-locked,
.talent-node[aria-disabled="true"] {
    cursor: not-allowed;
}

.talent-node__rank {
    position: absolute;
    z-index: 3;
    right: -0.4rem;
    bottom: -0.35rem;
    min-width: 1.55rem;
    padding: 0.12rem 0.25rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.3rem;
    color: #ff8c8c;
    background: rgba(0, 0, 0, 0.92);
    font-size: 0.65rem;
    font-weight: 700;
    line-height: 1.2;
}

.talent-node.is-partial .talent-node__rank {
    color: #6dff91;
}

.talent-node.is-maxed .talent-node__rank {
    color: var(--gold-soft);
}

.talent-node.is-cap-locked .talent-node__rank,
.talent-node.is-unreachable .talent-node__rank {
    color: #8d96a3;
}

.talent-tooltip {
    position: fixed;
    z-index: 1000;
    display: none;
    width: min(19rem, calc(100vw - 1.5rem));
    padding: 0.75rem;
    border: 1px solid var(--line-gold);
    border-radius: 0.35rem;
    color: var(--text);
    background: rgba(2, 8, 20, 0.98);
    box-shadow: var(--shadow);
    font-size: 0.78rem;
    pointer-events: none;
}

.talent-tooltip.is-visible {
    display: grid;
    gap: 0.45rem;
}

.talent-tooltip__heading {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    color: var(--gold-soft);
}

.talent-tooltip__heading span {
    color: var(--muted);
}

.talent-tooltip__description {
    color: #f2dfae;
    white-space: pre-line;
}

.talent-tooltip__next {
    color: #cfe0ee;
    white-space: pre-line;
}

.talent-tooltip__requirement {
    color: #ff9b9b;
    font-weight: 700;
}

.talent-connectors {
    position: absolute;
    z-index: 1;
    inset: 0;
    overflow: visible;
    pointer-events: none;
}

.talent-connector__outline,
.talent-connector__path {
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.talent-connector__outline {
    stroke: rgba(0, 0, 0, 0.92);
    stroke-width: 6px;
}

.talent-connector__path {
    stroke: #8d96a3;
    stroke-width: 2.5px;
    filter: drop-shadow(0 0 2px rgba(0, 0, 0, 0.75));
}

.talent-connector__arrow {
    fill: #8d96a3;
    stroke: rgba(0, 0, 0, 0.92);
    stroke-width: 1.5px;
    paint-order: stroke fill;
}

.talent-connector.is-active .talent-connector__path {
    stroke: #f6cd63;
    filter: drop-shadow(0 0 3px rgba(255, 211, 99, 0.8));
}

.talent-connector.is-active .talent-connector__arrow {
    fill: #f6cd63;
}

.calculator-help {
    margin: 1rem 0 0;
    color: var(--muted);
    font-size: 0.9rem;
    text-align: center;
}

@media (max-width: 70rem) {
    .calculator-heading {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .talent-trees {
        overflow-x: auto;
    }
}

@media (max-width: 50rem) {
    .class-selector__item span {
        display: none;
    }

    .calculator-toolbar {
        grid-template-columns: 1fr;
    }

    .calculator-metrics {
        justify-content: flex-start;
    }

    .talent-trees {
        grid-template-columns: 1fr;
        overflow: visible;
    }

    .talent-grid {
        min-height: 43rem;
    }
}