/* Hugiz Tools — Premium Dark Green (v2 — Vocal Bundle aesthetic) */
 @import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
    --bg: #040a07;
    --bg-card: rgba(6, 14, 10, 0.65);
    --bg-card-hover: rgba(10, 22, 16, 0.8);
    --bg-input: rgba(6, 14, 10, 0.8);
    --green: #00e68a;
    --green-bright: #33ffaa;
    --green-dim: rgba(0, 230, 138, 0.08);
    --green-glow: rgba(0,230,138,0.4);
    --green-glow-subtle: rgba(0,230,138,0.04);
    --white: #f0faf4;
    --gray: #8aaa98;
    --gray-dim: #4a6a58;
    --border: rgba(0,230,138,0.06);
    --border-bright: rgba(0,230,138,0.18);
    --radius: 16px;
    --radius-sm: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg);
    color: var(--white);
    min-height: 100vh;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Rich background gradients */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% -15%, rgba(0,230,138,0.05), transparent 80%),
        radial-gradient(ellipse 60% 60% at 80% 120%, rgba(0,230,138,0.03), transparent 80%);
    pointer-events: none;
    z-index: 0;
}

.container { max-width: 860px; margin: 0 auto; padding: 48px 24px; position: relative; z-index: 1; }

/* ─── TYPOGRAPHY ─── */
h1, h2, h3.section-title, .metric-card .value { font-family: 'Space Grotesk', sans-serif; }

.text-gradient {
    background: linear-gradient(90deg, var(--green-bright), var(--green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: var(--green);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 16px;
    border: 1px solid var(--green-dim);
    padding: 6px 14px;
    border-radius: 100px;
    background: var(--green-glow-subtle);
}

/* ─── FADE-IN ANIMATIONS ─── */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.fade-in.d1 { transition-delay: 0.1s; }
.fade-in.d2 { transition-delay: 0.2s; }
.fade-in.d3 { transition-delay: 0.3s; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ─── HEADER ─── */
.header { text-align: center; margin-bottom: 56px; animation: fadeDown .6s ease; }

.logo {
    display: inline-block;
    padding: 8px 22px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: .9rem;
    color: var(--green);
    margin-bottom: 28px;
    letter-spacing: .5px;
    backdrop-filter: blur(12px);
}

.header h1 {
    font-size: clamp(2.4rem, 5vw, 3.2rem);
    font-weight: 700;
    line-height: 1.08;
    margin-bottom: 14px;
}

.header h1 span {
    background: linear-gradient(135deg, var(--green), var(--green-bright));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header p { color: var(--gray); font-size: 1.1rem; max-width: 55ch; margin: 0 auto; }

/* ─── PAGE NAV ─── */
.page-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: fit-content;
    margin: 0 auto 28px;
    padding: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    backdrop-filter: blur(12px);
}

.page-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 100px;
    text-decoration: none;
    color: var(--gray);
    font: 600 .82rem/1 'Inter', sans-serif;
    letter-spacing: .3px;
    transition: .25s ease;
}

.page-nav a:hover { color: var(--white); }
.page-nav a.active {
    background: var(--green);
    color: #040a07;
    box-shadow: 0 4px 20px rgba(0, 230, 138, 0.25);
}

/* ─── TABS ─── */
.tabs {
    display: flex;
    max-width: 380px;
    margin: 0 auto 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 4px;
    gap: 4px;
    backdrop-filter: blur(12px);
}

.tab {
    flex: 1;
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--gray);
    font: 600 .88rem/1 'Inter', sans-serif;
    cursor: pointer;
    border-radius: 100px;
    transition: .25s ease;
}

.tab:hover { color: var(--white); background: rgba(255,255,255,0.05); }
.tab.active {
    background: var(--green);
    color: #040a07;
    box-shadow: 0 4px 20px rgba(0, 230, 138, 0.25);
}

/* ─── Glassmorphism Cards (Base for multiple elements) ─── */
.upload-area, .section, .metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 18px;
    backdrop-filter: blur(12px);
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.section { margin-bottom: 18px; }

.section:hover, .metric-card:hover {
    border-color: var(--border-bright);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.upload-area { margin-bottom: 32px; }

/* ─── UPLOAD ZONE ─── */
.upload-zone {
    border: 2px dashed rgba(0,230,138,0.25);
    border-radius: var(--radius-sm);
    padding: 48px 32px;
    text-align: center;
    cursor: pointer;
    background: transparent;
    margin-bottom: 20px;
    transition: .3s ease;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--green);
    background: var(--green-dim);
}

.upload-zone .icon { font-size: 3rem; margin-bottom: 16px; color: var(--green); }
.upload-zone h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 6px; }
.upload-zone p { color: var(--gray); font-size: .88rem; }

.file-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--green-dim);
    color: var(--green);
    border-radius: 100px;
    font-size: .82rem;
    font-weight: 600;
    margin-top: 14px;
}

/* ─── URL ROW ─── */
.url-row, .url-input-group { display: flex; gap: 10px; }
.url-input-group { margin-bottom: 32px; }

.url-row input, .url-input-group input {
    flex: 1;
    padding: 14px 18px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--white);
    font: 400 .92rem/1.4 'Inter', sans-serif;
    outline: none;
    transition: .25s;
}

.url-row input:focus, .url-input-group input:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 4px var(--green-dim);
}
.url-row input::placeholder, .url-input-group input::placeholder { color: var(--gray-dim); }

/* ─── BUTTONS ─── */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-sm);
    font: 600 1rem/1 'Inter', sans-serif;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary {
    background-color: var(--green);
    color: #020503;
    box-shadow: 0 4px 24px rgba(0, 230, 138, 0.2);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 230, 138, 0.35);
}
.btn-primary:disabled {
    opacity: .35;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    background-color: var(--gray-dim);
}


/* ─── LOADING ─── */
.loading { display: none; text-align: center; padding: 48px; }
.loading.active { display: block; animation: fadeIn .3s; }
.loading-step { color: var(--gray); font-size: .92rem; margin-top: 14px; }

/* Upload progress bar */
.upload-progress-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
    margin-top: 14px;
    max-width: 280px;
    margin-left: auto;
    margin-right: auto;
}
.upload-progress-track {
    flex: 1;
    height: 6px;
    background: rgba(255,255,255,0.08);
    border-radius: 3px;
    overflow: hidden;
}
.upload-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--green, #00e68a);
    border-radius: 3px;
    transition: width 0.3s ease;
}
.upload-progress-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--green, #00e68a);
    min-width: 36px;
    text-align: right;
}

.spinner {
    width: 44px; height: 44px;
    border: 3px solid rgba(0,230,138,0.15);
    border-top-color: var(--green);
    border-radius: 50%;
    animation: spin .7s linear infinite;
    margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── RESULTS ─── */
.results { display: none; }
.results.active { display: block; animation: fadeUp .5s ease; }

/* ─── METRIC CARDS ─── */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 28px;
}

.metric-card { padding: 28px 16px; text-align: center; }

.metric-card .label {
    font: 600 .7rem/1 'Inter', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray);
    margin-bottom: 14px;
}

.metric-card .value {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--green);
    line-height: 1;
}
.metric-card .sub { font-size: .78rem; color: var(--gray-dim); margin-top: 8px; }

/* LUFS context */
.lufs-context {
    display: flex;
    justify-content: space-between;
    font-size: .68rem;
    color: var(--gray-dim);
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.lufs-platform.active { color: var(--green); font-weight: 700; }

/* ─── SECTIONS ─── */
.section-header { margin-bottom: 24px; }

.section h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section h3 .icon { font-size: 1.1rem; color: var(--green); }

/* ─── BAND BARS ─── */
.band-bars {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    height: 180px;
}

.band-bar {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    justify-content: flex-end;
}

.band-bar .bar {
    width: 100%;
    background: linear-gradient(180deg, var(--green), var(--green-dim));
    border-radius: 6px 6px 2px 2px;
    transition: height .6s cubic-bezier(.4,0,.2,1);
    min-height: 4px;
}

.band-bar .bar:hover { filter: brightness(1.3); box-shadow: 0 0 12px var(--green-glow); }

.band-bar .band-label {
    font: 600 .62rem/1.2 'Inter', sans-serif;
    color: var(--gray);
    margin-top: 10px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: .3px;
}

.band-bar .band-value { font-size: .68rem; color: var(--gray-dim); margin-top: 2px; font-variant-numeric: tabular-nums; }

/* ─── CHART ─── */
.chart-container { position: relative; height: 220px; width: 100%; margin-top: 20px; }

/* ─── REVERB TABLE ─── */
.reverb-table { width: 100%; border-collapse: separate; border-spacing: 0; }

.reverb-table th, .reverb-table td { padding: 11px 14px; text-align: center; font-size: .86rem; }

.reverb-table th {
    color: var(--gray-dim);
    font: 700 .68rem/1 'Inter', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding-bottom: 16px;
}

.reverb-table td { color: var(--white); font-variant-numeric: tabular-nums; border-top: 1px solid var(--border); }
.reverb-table tr:hover td { background: var(--bg-card-hover); }
.reverb-table .note-name { font-weight: 800; color: var(--green); }
.reverb-table .highlight td { background: var(--green-dim); }

.copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px; height: 26px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: transparent;
    color: var(--gray-dim);
    cursor: pointer;
    font-size: .7rem;
    transition: .2s;
    margin-left: 3px;
    vertical-align: middle;
}

.copy-btn:hover { border-color: var(--green); color: var(--green); background: var(--green-dim); }
.copy-btn.copied { color: var(--green); border-color: var(--green); }

/* ─── Copy Toast ─── */
.copy-toast {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 230, 138, 0.15);
    color: var(--green);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 8px;
    backdrop-filter: blur(4px);
    pointer-events: none;
    animation: toastFade 1.4s ease forwards;
    z-index: 10;
}
@keyframes toastFade {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.9); }
    15% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    70% { opacity: 1; }
    100% { opacity: 0; transform: translate(-50%, -60%); }
}

/* ─── Recommended Section ─── */
.recommended-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.recommended-col h4 {
    font: 700 .68rem/1 'Inter', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray);
    margin-bottom: 12px;
}

.rec-item { display: flex; justify-content: space-between; align-items: center; padding: 7px 0; font-size: .86rem; }
.rec-item .rec-label { color: var(--gray); }
.rec-item .rec-value { font-weight: 700; font-variant-numeric: tabular-nums; }

/* ─── REVERB CARDS ─── */
/* ─── REVERB: CONTAINER ─── */
.reverb-cards {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ─── REVERB: SECTION HEADERS ─── */
.reverb-predelay-header,
.reverb-decay-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}
.reverb-section-icon {
    font-size: 1.1rem;
}
.reverb-section-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
}
.reverb-section-sub {
    font-size: 0.78rem;
    color: var(--gray);
}

/* ─── REVERB: PRE-DELAY PILLS ─── */
.reverb-predelay-row {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}
.reverb-predelay-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.reverb-predelay-pill {
    background: rgba(255,255,255,0.03);
    border: 1px dashed var(--border);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.reverb-predelay-pill:hover {
    border-color: var(--green);
    background: rgba(0, 230, 138, 0.04);
}
.reverb-predelay-pill.pill-recommended {
    border-style: solid;
    border-color: var(--green);
    background: rgba(0, 230, 138, 0.06);
}
.pill-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--gray);
    margin-bottom: 6px;
}
.pill-recommended .pill-label {
    color: var(--green);
}
.pill-value {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--white);
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}
.pill-unit {
    display: block;
    font-size: 0.78rem;
    color: var(--gray);
    margin-top: 4px;
}

/* ─── REVERB: DECAY CARDS ─── */
.reverb-decay-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.reverb-decay-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s;
}
.reverb-decay-card:hover {
    border-color: var(--green);
}

.reverb-card-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--gray);
    margin-bottom: 8px;
}
.reverb-card-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--white);
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}
.reverb-card-unit {
    font-size: 0.78rem;
    color: var(--gray);
    margin-top: 4px;
}
.reverb-card-desc {
    font-size: 0.75rem;
    color: var(--gray);
    margin-top: 8px;
    line-height: 1.4;
}

@media (max-width: 600px) {
    .reverb-predelay-options { grid-template-columns: 1fr; }
    .reverb-decay-grid { grid-template-columns: 1fr; }
}

/* ─── COMPARE ─── */
.compare-section { display: none; }
.compare-section.active { display: block; }

.compare-uploads { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 24px; }

.compare-upload {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 36px 16px;
    text-align: center;
    cursor: pointer;
    transition: .3s;
    background: var(--bg-card);
}

.compare-upload:hover, .compare-upload.dragover { border-color: var(--green); transform: translateY(-2px); }
.compare-upload.has-file { border-color: var(--green); border-style: solid; background: var(--green-dim); }
.compare-upload h4 { margin-bottom: 6px; color: var(--green); font-weight: 700; }
.compare-upload p { color: var(--gray); font-size: .84rem; }

.compare-metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-bottom: 20px; }

.ab-player { display: flex; gap: 8px; justify-content: center; margin-bottom: 20px; }

.ab-btn {
    padding: 12px 48px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--white);
    font: 900 1.3rem/1 'Inter', sans-serif;
    cursor: pointer;
    transition: .25s;
}

.ab-btn:hover { border-color: var(--green); }
.ab-btn.active { background: var(--green); border-color: var(--green); color: #040a07; box-shadow: 0 0 24px var(--green-glow); }
.ab-btn.stop { padding: 12px 28px; font-size: 1rem; }
.ab-btn.stop:hover { border-color: #e74c3c; color: #e74c3c; }

.volume-control { display: flex; align-items: center; gap: 12px; justify-content: center; margin-bottom: 18px; }
.volume-control label { font-size: .84rem; color: var(--gray); }
.volume-control input[type="range"] { width: 180px; accent-color: var(--green); }

/* ─── CTA Section (open, no box — matches vocal-bundle cta-final) ─── */
.cta-banner {
    text-align: center;
    padding: 80px 0 40px;
    margin-top: 32px;
    position: relative;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,230,138,0.2), transparent);
}

.cta-banner-inner { position: relative; }

.cta-banner h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-banner p { color: var(--gray); margin: 0 auto 32px; font-size: 1.05rem; max-width: 50ch; }

.cta-banner .btn-primary {
    padding: 16px 40px;
    font-size: 1.05rem;
    box-shadow: 0 4px 24px rgba(0, 230, 138, 0.2);
}
.cta-banner .btn-primary:hover { box-shadow: 0 8px 32px rgba(0, 230, 138, 0.35); transform: translateY(-3px); }

/* ─── FOOTER ─── */
.footer {
    text-align: center;
    padding: 40px 0;
    color: var(--gray-dim);
    font-size: .85rem;
    border-top: 1px solid var(--border);
    margin-top: 64px;
}
.footer a { color: var(--gray); text-decoration: none; border-bottom: 1px solid var(--border); transition: 0.2s ease; }
.footer a:hover { color: var(--white); border-bottom-color: var(--green); }

/* ─── ANIMATIONS ─── */
@keyframes fadeIn { from { opacity: 0 } to { opacity: 1 } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px) } to { opacity: 1; transform: translateY(0) } }
@keyframes fadeDown { from { opacity: 0; transform: translateY(-16px) } to { opacity: 1; transform: translateY(0) } }

/* ─── RESPONSIVE ─── */
@media (max-width: 640px) {
    .container { padding: 24px 16px; }
    .header h1 { font-size: 2.2rem; }
    .metrics-grid, .compare-metrics { grid-template-columns: 1fr; }
    .compare-uploads { grid-template-columns: 1fr; }
    .url-input-group, .url-row { flex-direction: column; }
    .upload-zone { padding: 40px 16px; }
    .section, .upload-area, .metric-card { padding: 20px; }
    .recommended-grid { grid-template-columns: 1fr; }
    .metric-card .value { font-size: 2.4rem; }
    .cta-banner-inner { padding: 32px 24px; }
}

/* ─── ANIMATIONS ─── */
@keyframes fadeIn { from { opacity: 0 } to { opacity: 1 } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px) } to { opacity: 1; transform: translateY(0) } }
@keyframes fadeDown { from { opacity: 0; transform: translateY(-16px) } to { opacity: 1; transform: translateY(0) } }

/* ─── MOBILE ─── */
@media (max-width: 640px) {
    .container { padding: 24px 16px; }
    .header h1 { font-size: 2.2rem; }
    .metrics-grid, .compare-metrics { grid-template-columns: 1fr; }
    .compare-uploads { grid-template-columns: 1fr; }
    .url-input-group { flex-direction: column; }
    .upload-zone { padding: 40px 16px; }
    .section { padding: 24px; }
    .recommended-grid { grid-template-columns: 1fr; }
    .metric-card .value { font-size: 2.2rem; }
    .cta-banner { padding: 40px 24px; }
    .btn { padding: 16px 32px; font-size: 1rem; }
}

/* ── LUFS advice card (A/B comparison) ─────────────────── */
.lufs-advice {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: rgba(0,0,0, 0.25);
    border: 1px solid color-mix(in srgb, var(--lufs-advice-color, #00e68a) 35%, transparent);
    border-radius: 8px;
    padding: 11px 15px;
    margin-top: 14px;
    font-size: 0.81rem;
    color: #b0caba;
    line-height: 1.5;
}
.lufs-advice-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 1px;
}