@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --text-primary: #000000;
    --text-secondary: #4b5563;
    --text-tertiary: #9ca3af;
    --accent: #000000;
    --border: #eeeeee;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #080808;
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --text-tertiary: #4b5563;
    --accent: #ffffff;
    --border: #111111;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.5s ease;
    overflow-x: hidden;
    padding: 1rem;
}

.va-journey-wrapper {
    width: 100%;
    max-width: 980px;
    padding: 1rem 1.25rem;
    position: relative;
    z-index: 10;
    margin-top: 6rem; /* Increased to avoid header overlap */
    margin-bottom: 4rem;
}

.va-status-bar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    padding: 1.5rem 2rem;
    display: flex; justify-content: space-between; align-items: center;
    border-bottom: 1px solid var(--border);
    background: var(--bg-primary);
    z-index: 1000; /* Higher z-index to stay on top */
}

.va-brand { font-weight: 900; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; }
.va-header-actions { display: flex; align-items: center; gap: 1rem; }
.header-link {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    padding: 0.65rem 0.85rem;
    font-size: 0.68rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
}
.header-link.active,
.header-link:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.app-view { display: none; }
.app-view.active { display: block; }
.va-journey-wrapper.app-view.active { display: block; }
.journey-progress.muted { opacity: 0.2; }

.history-menu { position: relative; }
.history-menu summary {
    list-style: none;
    cursor: pointer;
    border: 1px solid var(--border);
    padding: 0.65rem 0.9rem;
    font-size: 0.68rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}
.history-menu summary::-webkit-details-marker { display: none; }
.history-popover {
    position: absolute;
    right: 0;
    top: calc(100% + 0.75rem);
    width: min(460px, 92vw);
    max-height: 70vh;
    overflow: auto;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    padding: 1rem;
    text-align: left;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}
.history-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-bottom: 0.85rem;
}
.history-head strong { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em; }
.history-head button {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 0.45rem 0.6rem;
    cursor: pointer;
    font-size: 0.62rem;
    font-weight: 900;
    text-transform: uppercase;
}
.history-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-bottom: 0.85rem;
    border: 1px solid var(--border);
}
.history-tabs button {
    border: 0;
    background: transparent;
    color: var(--text-secondary);
    padding: 0.65rem;
    cursor: pointer;
    font-size: 0.66rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.history-tabs button.active {
    background: var(--text-primary);
    color: var(--bg-primary);
}
.history-list { display: grid; gap: 0.65rem; }
.history-list.hidden,
.social-list { display: none; }
.social-list.active { display: grid; }
.history-empty,
.history-item { color: var(--text-secondary); font-size: 0.86rem; }
.history-item {
    border: 1px solid var(--border);
    padding: 0.85rem;
    display: grid;
    gap: 0.25rem;
    background: transparent;
    text-align: left;
    width: 100%;
    cursor: pointer;
}
.history-item:hover { border-color: var(--text-primary); }
.social-item { cursor: default; }
.history-item time,
.history-item small {
    color: var(--text-tertiary);
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.history-item strong { color: var(--text-primary); text-transform: uppercase; }

.view-page {
    width: min(1180px, calc(100% - 2rem));
    margin: 6.5rem auto 4rem;
    grid-template-columns: minmax(220px, 280px) 1fr;
    gap: 1rem;
}
.view-page.active { display: grid; }
.view-sidebar,
.view-content,
.result-page-card {
    border: 1px solid var(--border);
    background: var(--bg-secondary);
}
.view-sidebar {
    padding: 1rem;
    align-self: start;
    display: grid;
    gap: 0.75rem;
}
.view-sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}
.view-sidebar-head strong,
.view-sidebar-head button,
.side-tab {
    font-size: 0.7rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.view-sidebar-head button,
.side-tab {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    padding: 0.7rem;
    cursor: pointer;
}
.side-tab.active,
.side-tab:hover {
    color: var(--bg-primary);
    background: var(--text-primary);
}
.view-content {
    min-height: 68vh;
    padding: clamp(1rem, 3vw, 2rem);
}
.empty-page-state {
    color: var(--text-secondary);
    min-height: 45vh;
    display: grid;
    place-items: center;
    text-align: center;
}
.result-page-card {
    padding: clamp(1rem, 3vw, 2rem);
}
.result-page-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.25rem;
    margin-bottom: 1.25rem;
}
.result-page-head h1 {
    margin: 0.65rem 0 0.25rem;
    font-size: clamp(2rem, 4vw, 4rem);
    line-height: 0.95;
}
.result-page-head p,
.result-page-section p {
    color: var(--text-secondary);
}
.result-page-head > strong {
    color: var(--text-primary);
    text-transform: uppercase;
}
.result-card-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
}
.result-card-grid article {
    border: 1px solid var(--border);
    padding: 1rem;
    display: grid;
    gap: 0.5rem;
}
.result-card-grid span,
.wide-compare-row span,
.social-card time,
.social-card small {
    color: var(--text-tertiary);
    font-size: 0.68rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.result-card-grid strong { font-size: 1.2rem; }
.result-page-section {
    margin-top: 1.25rem;
    border-top: 1px solid var(--border);
    padding-top: 1.25rem;
}
.result-page-section h2,
.social-head h2 {
    margin: 0.5rem 0 1rem;
}
.wide-comparison {
    display: grid;
    gap: 1rem;
}
.wide-compare-row {
    display: grid;
    grid-template-columns: 110px 1fr minmax(210px, 280px);
    gap: 1rem;
    align-items: center;
}
.wide-compare-row div {
    height: 34px;
    border: 1px solid var(--border);
    position: relative;
    background: var(--bg-primary);
}
.wide-compare-row i,
.wide-compare-row b {
    position: absolute;
    left: 0;
    height: 12px;
}
.wide-compare-row i { top: 5px; background: var(--text-primary); }
.wide-compare-row b { bottom: 5px; background: var(--accent); opacity: 0.7; }
.social-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: start;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}
.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 0.85rem;
}
.social-card {
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-secondary);
    padding: 1rem;
    display: grid;
    gap: 0.45rem;
    text-align: left;
}
button.social-card { cursor: pointer; }
.social-card strong {
    color: var(--text-primary);
    text-transform: uppercase;
}
.group-toggle {
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 1rem;
    display: flex;
    justify-content: center;
    gap: 0.65rem;
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.group-link-box {
    display: grid;
    gap: 0.75rem;
}
.group-link-box[hidden] { display: none; }

@media (max-width: 760px) {
    .va-status-bar { padding: 1rem; gap: 0.75rem; align-items: flex-start; }
    .va-header-actions { flex-wrap: wrap; justify-content: flex-end; gap: 0.5rem; }
    .header-link { padding: 0.55rem; font-size: 0.6rem; }
    .view-page.active { display: block; }
    .view-sidebar { margin-bottom: 1rem; }
    .result-page-head,
    .wide-compare-row { display: grid; grid-template-columns: 1fr; }
    .result-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}


.journey-step { display: none; flex-direction: column; align-items: center; text-align: center; width: 100%; }
.journey-step.active { display: flex; animation: stepEnter 0.6s both; }

@keyframes stepEnter {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-title { font-size: clamp(2.6rem, 7vw, 5.8rem); font-weight: 900; letter-spacing: 0; line-height: 0.9; margin-bottom: 1rem; }
.step-desc { color: var(--text-secondary); font-size: 1rem; max-width: 400px; margin-bottom: 2rem; }

/* FOCUS VISUALIZER (STEPS 1-3) */
.focus-visualizer {
    width: 100%;
    height: 320px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 0 0 1px rgba(128, 128, 128, 0.08);
}

.focus-visualizer::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, transparent, rgba(128, 128, 128, 0.08), transparent),
        radial-gradient(circle at 50% 50%, rgba(128, 128, 128, 0.1), transparent 58%);
    opacity: 0.7;
    pointer-events: none;
    z-index: 1;
}

.pitch-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 2; pointer-events: none; }
.journey-timer { font-family: 'JetBrains Mono'; font-size: 4rem; font-weight: 700; color: var(--accent); margin-bottom: 1rem; position: relative; z-index: 10; pointer-events: none; }

.timer-overlay {
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
    width: 0%;
    background: var(--accent);
    opacity: 0.05;
    z-index: 1;
    transition: width 0.1s linear;
}

[data-theme="dark"] .timer-overlay {
    opacity: 0.15;
}

/* STEP 4: PREMIUM RESULTS */
.final-header {
    margin-bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.vocal-landscape-box {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    margin-bottom: 2rem;
    padding: clamp(1rem, 3vw, 2rem);
}

.landscape-header { display: flex; justify-content: flex-start; margin-bottom: 1rem; }
.landscape-tag { font-size: 0.6rem; font-weight: 900; color: var(--text-tertiary); letter-spacing: 0.2em; border: 1px solid var(--border); padding: 0.25rem 0.75rem; }

#vocal-landscape-container { width: 100%; height: clamp(260px, 30vw, 360px); position: relative; }
canvas#landscapeCanvas { width: 100%; height: 100%; }

.analysis-report-container { width: 100%; text-align: left; margin-bottom: 3rem; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.timbre-tag { background: var(--text-primary); color: var(--bg-primary); padding: 0.5rem 1.25rem; font-size: 0.7rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.05em; }

.diagnostic-box { border-left: 3px solid var(--text-primary); padding-left: 1.5rem; }
#timbreLongDesc { font-size: 1rem; line-height: 1.6; color: var(--text-secondary); }

.playback-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 2rem 0;
}

.playback-card,
.comparison-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 1rem;
}

.playback-card {
    display: grid;
    grid-template-columns: minmax(110px, 0.7fr) minmax(180px, 1fr);
    gap: 1rem;
    align-items: center;
}

.playback-card strong {
    font-family: 'JetBrains Mono';
    display: block;
    font-size: 1.4rem;
    font-weight: 800;
    line-height: 1;
}

.playback-card span,
.clip-missing,
.comparison-label {
    margin-top: 0.55rem;
    color: var(--text-tertiary);
    font-size: 0.62rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.playback-card audio { width: 100%; height: 38px; }

.tessiture-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: clamp(1.25rem, 3vw, 2rem);
    margin-bottom: 2rem;
}

.tessiture-catalog {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
    margin: -0.75rem 0 2rem;
}

.tessiture-catalog article {
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    padding: 1rem;
}

.tessiture-catalog article.active {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.tessiture-catalog strong {
    display: block;
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.55rem;
}

.tessiture-catalog em {
    display: block;
    color: var(--text-tertiary);
    font-family: 'JetBrains Mono';
    font-size: 0.78rem;
    font-style: normal;
    margin-bottom: 0.7rem;
}

.tessiture-catalog p {
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.45;
}

.tessiture-catalog article.active p {
    color: var(--bg-primary);
    opacity: 0.78;
}

.tessiture-catalog article.active em {
    color: var(--bg-primary);
    opacity: 0.72;
}

.tessiture-kicker {
    color: var(--text-tertiary);
    font-size: 0.62rem;
    font-weight: 900;
    letter-spacing: 0.16em;
    margin-bottom: 0.65rem;
}

.tessiture-card h2 {
    font-size: clamp(1.8rem, 5vw, 3.4rem);
    line-height: 0.95;
    letter-spacing: 0;
    margin-bottom: 1rem;
}

.tessiture-card p {
    color: var(--text-secondary);
    max-width: 720px;
    font-size: 1rem;
}

.tessiture-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.tessiture-stats span {
    border-top: 1px solid var(--border);
    padding-top: 0.8rem;
    color: var(--text-tertiary);
    font-size: 0.68rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.tessiture-stats strong {
    display: block;
    color: var(--text-primary);
    font-family: 'JetBrains Mono';
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.comparison-panel {
    border-top: 1px solid var(--border);
    margin-top: 1.5rem;
    padding-top: 1.5rem;
}

.comparison-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: baseline;
    margin-bottom: 1rem;
    color: var(--text-tertiary);
    font-size: 0.62rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.comparison-header small {
    font: inherit;
    letter-spacing: 0.08em;
}

.comparison-toggle {
    display: inline-flex;
    border: 1px solid var(--border);
    margin-bottom: 1.25rem;
    background: var(--bg-secondary);
}

.toggle-option {
    border: 0;
    background: transparent;
    color: var(--text-secondary);
    padding: 0.8rem 1rem;
    cursor: pointer;
    font-size: 0.68rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.toggle-option.active {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.comparison-graph { display: grid; gap: 1rem; }
.comparison-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 1rem;
    align-items: start;
}
.comparison-axis {
    color: var(--text-tertiary);
    font-size: 0.66rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}
.comparison-bars { display: grid; gap: 0.5rem; }
.comparison-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.comparison-legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.comparison-legend i { width: 18px; height: 8px; display: inline-block; }
.legend-user { background: var(--text-primary); }
.legend-ref { background: var(--text-tertiary); opacity: 0.55; }
.bar-track {
    position: relative;
    height: 18px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    overflow: hidden;
}
.bar-track span {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
}
.bar-user { background: var(--text-primary); z-index: 2; }
.bar-ref { background: var(--text-tertiary); opacity: 0.42; z-index: 1; }
.bar-values {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}
.bar-values b {
    font-family: 'JetBrains Mono';
    font-size: 0.76rem;
    font-weight: 800;
    color: var(--text-secondary);
}

/* DASHBOARD GRID */
.result-dashboard { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; width: 100%; margin-bottom: 3rem; }
.res-card { background: var(--bg-secondary); border: 1px solid var(--border); padding: 1.5rem; text-align: left; display: flex; flex-direction: column; }
.res-card.full-row { grid-column: 1 / -1; }

.res-val { font-family: 'JetBrains Mono'; font-size: 2rem; font-weight: 700; line-height: 1; color: var(--text-primary); letter-spacing: -0.05em; }
.res-lbl { font-size: 0.65rem; font-weight: 800; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 0.5rem; }

.split-val { display: flex; align-items: center; justify-content: space-between; }
.val-group { flex: 1; }
.val-divider { width: 1px; height: 40px; background: var(--border); margin: 0 1.5rem; }

.final-actions { width: 100%; display: flex; gap: 0.75rem; }
.icon-actions {
    justify-content: center;
    align-items: center;
    margin-top: 0.85rem;
}

.icon-action {
    width: 52px;
    height: 52px;
    min-width: 52px;
    flex: 0 0 52px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    background: var(--text-primary);
    color: var(--bg-primary);
    border: 1px solid var(--text-primary);
    cursor: pointer;
    transition: transform 0.18s ease, background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.icon-action:hover {
    transform: translateY(-2px);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-color: var(--border);
}

.icon-action:disabled {
    cursor: wait;
    opacity: 0.55;
    transform: none;
}

/* SHARED COMPONENTS */
.onboarding-form {
    width: 100%;
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.va-select, .va-input { background: var(--bg-secondary); border: 1px solid var(--border); color: var(--text-primary); padding: 1rem; width: 100%; text-align: center; font-weight: 600; outline: none; }
.priority-select { border-color: var(--accent); font-weight: 800; }

.quality-result {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.quality-result strong {
    display: block;
    font-family: 'JetBrains Mono';
    font-size: 1.05rem;
    margin-bottom: 0.35rem;
}

.quality-result span {
    display: block;
    color: var(--text-tertiary);
    font-size: 0.68rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.65rem;
}

.quality-result p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.btn-main { background: var(--accent); color: var(--bg-primary); border: none; padding: 1.25rem; font-weight: 900; text-transform: uppercase; letter-spacing: 0.15em; cursor: pointer; transition: var(--transition); width: 100%; font-size: 0.85rem; }
.btn-main:hover { filter: invert(1); transform: translateY(-2px); }

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 1rem;
    width: 100%;
    cursor: pointer;
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.btn-secondary:hover {
    border-color: var(--text-primary);
}

.btn-reset { background: none; border: none; color: var(--text-tertiary); cursor: pointer; text-transform: uppercase; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.2em; margin-top: 1rem; transition: color 0.2s; }
.btn-reset:hover { color: var(--text-primary); }

.theme-toggle { background: none; border: none; color: var(--text-primary); cursor: pointer; opacity: 0.5; }
.journey-progress { position: fixed; bottom: 0; left: 0; height: 4px; background: var(--accent); z-index: 100; transition: width 0.4s; }

.bg-visual { position: fixed; inset: 0; z-index: 1; opacity: 0.03; pointer-events: none; }
[data-theme="dark"] .bg-visual { opacity: 0.1; }
canvas#sc { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 500px) {
    .focus-visualizer { height: 300px; }
    .result-dashboard { grid-template-columns: 1fr; }
    .playback-panel,
    .tessiture-stats,
    .tessiture-catalog { grid-template-columns: 1fr; }
    .comparison-row,
    .bar-values { grid-template-columns: 1fr; }
    .playback-card { grid-template-columns: 1fr; }
    .split-val { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
    .val-divider { display: none; }
    .final-actions { gap: 0.5rem; }
    .icon-action {
        min-width: 0;
        flex: 1;
        padding: 0 0.5rem;
    }
}