:root {
    --origin-surface: linear-gradient(180deg, rgba(15, 25, 36, 0.98) 0%, rgba(7, 14, 21, 0.99) 100%);
    --origin-border: rgba(115, 220, 193, 0.16);
    --origin-border-strong: rgba(140, 255, 214, 0.32);
    --origin-highlight: rgba(128, 255, 206, 0.16);
    --origin-hero-glow: rgba(87, 214, 178, 0.14);
    --origin-scrollbar-track: rgba(13, 25, 37, 0.62);
    --origin-scrollbar-thumb: rgba(116, 223, 195, 0.3);
    --origin-shell-padding-x: clamp(24px, 3vw, 42px);
    --origin-shell-padding-y: clamp(18px, 2.4vh, 28px);
}

.origin-selection-menu {
    position: fixed;
    inset: 0;
    z-index: 2300;
    display: flex;
    background:
        radial-gradient(circle at 18% 14%, rgba(78, 201, 162, 0.12), transparent 26%),
        radial-gradient(circle at 84% 82%, rgba(54, 119, 196, 0.12), transparent 24%),
        linear-gradient(180deg, rgba(5, 10, 15, 0.97) 0%, rgba(3, 8, 13, 0.99) 100%);
    backdrop-filter: blur(10px);
}

.origin-selection-shell,
.origin-selection-window {
    width: 100%;
    height: 100%;
}

.origin-selection-window {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(22, 46, 57, 0.26), transparent 28%),
        var(--origin-surface);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.06),
        inset 0 0 0 1px rgba(24, 52, 69, 0.28);
}

.origin-selection-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
    gap: 20px;
    padding: var(--origin-shell-padding-y) var(--origin-shell-padding-x) 16px;
    border-bottom: 1px solid rgba(115, 220, 193, 0.1);
    background:
        radial-gradient(circle at left top, var(--origin-hero-glow), transparent 48%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 72%);
}

.origin-selection-hero-main {
    min-width: 0;
}

.origin-selection-kicker,
.origin-selection-step-index,
.origin-selection-summary-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: 999px;
    background: rgba(40, 74, 67, 0.54);
    border: 1px solid rgba(116, 223, 195, 0.16);
    color: #9af1ca;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.origin-selection-title {
    margin: 12px 0 10px;
    color: #f3fff8;
    font-size: clamp(30px, 3.2vw, 46px);
    line-height: 0.98;
}

.origin-selection-copy {
    margin: 0;
    max-width: 760px;
    color: rgba(221, 232, 236, 0.78);
    font-size: 15px;
    line-height: 1.48;
}

.origin-selection-hero-status {
    display: grid;
    gap: 14px;
    align-content: start;
}

.origin-selection-progress-card,
.origin-selection-summary-card {
    border-radius: 26px;
    border: 1px solid var(--origin-border);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 36%),
        rgba(12, 21, 31, 0.88);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.06),
        0 20px 34px rgba(4, 12, 20, 0.22);
}

.origin-selection-progress-card {
    padding: 14px 18px;
}

.origin-selection-progress-value {
    margin-top: 10px;
    color: #f2fff7;
    font-size: 24px;
    font-weight: 800;
    line-height: 1.02;
}

.origin-selection-progress-copy {
    margin: 8px 0 0;
    color: rgba(214, 226, 232, 0.72);
    font-size: 13px;
    line-height: 1.42;
}

.origin-selection-hero-meta,
.origin-summary-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.origin-selection-body {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    padding: 0 var(--origin-shell-padding-x);
}

.origin-selection-steps {
    flex: 1 1 auto;
    display: grid;
    grid-template-columns: minmax(300px, 0.72fr) minmax(0, 1.28fr);
    gap: 18px;
    min-height: 0;
    padding: 16px 0 14px;
    align-items: stretch;
}

.origin-selection-section {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    padding: 18px;
    border-radius: 26px;
    border: 1px solid var(--origin-border);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 28%),
        rgba(11, 20, 30, 0.92);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.origin-selection-section--class,
.origin-selection-section--species {
    min-height: 0;
}

.origin-selection-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.origin-selection-section-head h2 {
    margin: 0;
    color: #effcf5;
    font-size: 22px;
}

.origin-selection-section-copy {
    margin: 0 0 14px;
    color: rgba(216, 227, 232, 0.68);
    font-size: 13px;
    line-height: 1.4;
}

.origin-selection-species-workspace {
    flex: 1 1 auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    grid-template-rows: minmax(0, 1fr);
    gap: 16px;
    min-height: 0;
    align-items: stretch;
}

.origin-selection-scroll-pane {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-right: 10px;
    padding-bottom: 18px;
    scrollbar-width: thin;
    scrollbar-color: var(--origin-scrollbar-thumb) var(--origin-scrollbar-track);
}

.origin-selection-scroll-pane::-webkit-scrollbar {
    width: 8px;
}

.origin-selection-scroll-pane::-webkit-scrollbar-track {
    border-radius: 999px;
    background: var(--origin-scrollbar-track);
}

.origin-selection-scroll-pane::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: var(--origin-scrollbar-thumb);
}

.origin-selection-scroll-pane::-webkit-scrollbar-thumb:hover {
    background: rgba(140, 255, 214, 0.42);
}

.origin-class-grid,
.origin-species-grid {
    display: grid;
    gap: 12px;
    align-content: start;
}

.origin-species-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.origin-class-card,
.origin-species-card {
    width: 100%;
    min-width: 0;
    margin: 0;
    padding: 16px;
    border-radius: 22px;
    border: 1px solid rgba(115, 220, 193, 0.08);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 68%),
        rgba(15, 24, 36, 0.94);
    color: #f1fff6;
    text-align: left;
    cursor: pointer;
    transition:
        transform 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease,
        opacity 0.2s ease;
}

.origin-class-card:hover,
.origin-species-card:hover {
    transform: translateY(-1px);
    border-color: rgba(130, 235, 204, 0.26);
    box-shadow: 0 16px 30px rgba(5, 12, 19, 0.24);
}

.origin-class-card.is-selected,
.origin-species-card.is-selected {
    border-color: var(--origin-border-strong);
    box-shadow:
        0 0 0 1px rgba(114, 214, 188, 0.12),
        0 18px 30px rgba(6, 15, 23, 0.28),
        inset 0 0 0 1px rgba(171, 255, 226, 0.08);
    background:
        linear-gradient(180deg, rgba(119, 255, 206, 0.08), transparent 55%),
        rgba(14, 29, 38, 0.97);
}

.origin-class-card.is-completed,
.origin-species-card.is-completed {
    opacity: 0.68;
}

.origin-class-title,
.origin-species-title {
    display: block;
    margin-bottom: 6px;
    color: #f4fff9;
    font-size: 18px;
    font-weight: 800;
    line-height: 1.12;
}

.origin-class-description,
.origin-species-description,
.origin-summary-copy,
.origin-empty-state {
    color: rgba(217, 228, 232, 0.72);
    line-height: 1.56;
}

.origin-class-description,
.origin-species-description {
    font-size: 14px;
}

.origin-species-traits {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.origin-species-trait-title {
    display: block;
    margin-bottom: 6px;
    color: #9fe8c5;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.origin-species-trait-block ul {
    margin: 0;
    padding-left: 16px;
    color: rgba(230, 238, 241, 0.78);
    font-size: 12px;
    line-height: 1.4;
}

.origin-selection-decision-rail {
    position: sticky;
    top: 0;
    min-height: 0;
    align-self: start;
}

.origin-selection-summary-zone {
    flex: 0 0 auto;
    display: none;
    padding: 0 0 30px;
}

.origin-selection-summary-card {
    padding: 18px 20px;
}

.origin-selection-summary-card--rail {
    min-height: 100%;
}

.origin-summary-title {
    margin: 12px 0 8px;
    color: #f3fff8;
    font-size: 28px;
    line-height: 1.05;
}

.origin-summary-pill {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid rgba(128, 226, 198, 0.16);
    background: rgba(17, 30, 41, 0.76);
    color: #dffef1;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.origin-selection-action-bar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: 12px var(--origin-shell-padding-x) calc(12px + env(safe-area-inset-bottom));
    border-top: 1px solid rgba(115, 220, 193, 0.1);
    background:
        linear-gradient(180deg, rgba(7, 12, 18, 0.2), rgba(7, 12, 18, 0.92) 18%, rgba(7, 12, 18, 0.98) 100%);
    backdrop-filter: blur(14px);
}

.origin-selection-action-title {
    color: #f0fff7;
    font-size: 16px;
    font-weight: 800;
}

.origin-selection-action-subtitle {
    margin-top: 4px;
    color: rgba(215, 226, 232, 0.7);
    font-size: 13px;
    line-height: 1.4;
}

.origin-selection-action-buttons {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
}

.origin-step-btn,
.origin-confirm-btn {
    min-height: 52px;
    margin: 0;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.origin-step-btn {
    min-width: 146px;
    padding: 0 18px;
    border: 1px solid rgba(135, 227, 200, 0.16);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 100%),
        rgba(17, 30, 41, 0.82);
    color: #e4fbef;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.origin-step-btn:hover:not([disabled]) {
    border-color: rgba(140, 255, 214, 0.28);
    transform: translateY(-1px);
}

.origin-confirm-btn {
    min-width: 260px;
    padding: 0 24px;
    border: 1px solid rgba(180, 255, 218, 0.28);
    background:
        linear-gradient(180deg, #c4ffc1 0%, #7af0ab 16%, #3abf78 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.38),
        0 18px 30px rgba(15, 48, 33, 0.28);
    color: #113022;
}

.origin-confirm-btn[disabled],
.origin-step-btn[disabled] {
    opacity: 0.48;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.origin-step-btn.is-hidden,
.origin-confirm-btn.is-hidden {
    display: none;
}

.origin-empty-state {
    padding: 28px;
    border-radius: 18px;
    border: 1px dashed rgba(115, 220, 193, 0.16);
    background: rgba(12, 21, 31, 0.5);
    font-size: 14px;
}

body.progression-species-synthesis .tissue-menu-btn,
body.progression-species-synthesis .nav-btn[data-menu="skeleton"],
body.progression-species-synthesis .stat-nav-btn[data-menu="skeleton"],
body.progression-species-synthesis .modern-nav-button[data-menu="skeleton"] {
    display: none !important;
}

@media (min-width: 1400px) {
    .origin-selection-species-workspace {
        grid-template-columns: minmax(0, 1fr) 340px;
    }

    .origin-species-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 1180px) {
    .origin-selection-hero {
        grid-template-columns: 1fr;
    }

    .origin-selection-steps {
        grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
    }

    .origin-selection-species-workspace {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(0, 1fr) auto;
    }

    .origin-selection-decision-rail {
        position: static;
    }

    .origin-selection-action-bar {
        grid-template-columns: 1fr;
    }

    .origin-selection-action-buttons {
        justify-content: stretch;
        width: 100%;
    }
}

@media (max-width: 960px) {
    .origin-selection-window {
        grid-template-rows: auto minmax(0, 1fr) auto;
    }

    .origin-selection-hero {
        gap: 18px;
        padding: 18px 18px 16px;
    }

    .origin-selection-title {
        margin: 14px 0 10px;
        font-size: 32px;
    }

    .origin-selection-copy {
        font-size: 15px;
    }

    .origin-selection-progress-card {
        padding: 16px;
    }

    .origin-selection-progress-value {
        font-size: 24px;
    }

    .origin-selection-body {
        display: block;
        padding: 0 18px;
        overflow-y: auto;
    }

    .origin-selection-steps {
        flex: none;
        grid-template-columns: 1fr;
        gap: 16px;
        min-height: auto;
        padding: 16px 0;
        align-items: start;
    }

    .origin-selection-section,
    .origin-selection-summary-card {
        border-radius: 22px;
    }

    .origin-selection-section,
    .origin-selection-summary-zone {
        display: none;
    }

    .origin-selection-decision-rail {
        display: none;
    }

    .origin-selection-menu[data-current-step="class"] .origin-selection-section--class,
    .origin-selection-menu[data-current-step="species"] .origin-selection-section--species,
    .origin-selection-menu[data-current-step="summary"] .origin-selection-summary-zone {
        display: block;
    }

    .origin-selection-section {
        overflow: visible;
    }

    .origin-selection-section--species {
        min-height: auto;
    }

    .origin-selection-species-workspace {
        height: auto;
        min-height: auto;
        grid-template-rows: none;
    }

    .origin-selection-scroll-pane {
        overflow: visible;
        padding-right: 0;
        padding-bottom: 0;
        overscroll-behavior: auto;
    }

    .origin-species-grid {
        grid-template-columns: 1fr;
    }

    .origin-selection-action-bar {
        position: sticky;
        bottom: 0;
        gap: 14px;
        padding: 14px 18px calc(14px + env(safe-area-inset-bottom));
    }

    .origin-selection-action-copy {
        display: none;
    }

    .origin-selection-action-buttons {
        display: grid;
        grid-template-columns: 1fr 1fr;
        width: 100%;
        gap: 10px;
    }

    .origin-step-btn,
    .origin-confirm-btn {
        width: 100%;
        min-width: 0;
        min-height: 56px;
        padding: 0 18px;
        font-size: 13px;
    }

    .origin-confirm-btn {
        grid-column: 1 / -1;
    }
}

@media (max-width: 560px) {
    .origin-selection-kicker,
    .origin-selection-step-index,
    .origin-selection-summary-kicker,
    .origin-summary-pill {
        font-size: 10px;
    }

    .origin-selection-title {
        font-size: 28px;
    }

    .origin-selection-copy,
    .origin-class-description,
    .origin-species-description,
    .origin-summary-copy {
        font-size: 14px;
    }

    .origin-class-title,
    .origin-species-title {
        font-size: 18px;
    }

    .origin-summary-title {
        font-size: 28px;
    }

    .origin-species-traits {
        grid-template-columns: 1fr;
    }
}