:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111113;
    --bg-card: #161619;
    --bg-input: #1a1a1e;
    --gold-primary: #c9a227;
    --gold-light: #d4af37;
    --gold-dim: rgba(201, 162, 39, 0.15);
    --gold-glow: rgba(201, 162, 39, 0.4);
    --text-primary: #e8e6e3;
    --text-secondary: #9a9590;
    --text-muted: #8a8480;
    --border-subtle: rgba(201, 162, 39, 0.12);
    --border-active: rgba(201, 162, 39, 0.35);
    --success: #4a9c6d;
    --warning: #c9a227;
    --danger: #c75050;
    --font-display: 'Cinzel', serif;
    --font-body: 'Cormorant Garamond', serif;
    --safe-top: env(safe-area-inset-top);
    --safe-bottom: env(safe-area-inset-bottom);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    padding-top: var(--safe-top);
    padding-bottom: calc(var(--safe-bottom) + 20px);
    line-height: 1.6;
    overflow-x: hidden;
    /* Cormorant usa numeri "all'antica" di altezza irregolare: forziamo cifre allineate */
    font-variant-numeric: lining-nums;
    font-feature-settings: "lnum" 1;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(201, 162, 39, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(201, 162, 39, 0.025) 0%, transparent 30%),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.79 0 0 0 0 0.64 0 0 0 0 0.15 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* Header */
header {
    text-align: center;
    padding: 40px 0 30px;
    position: relative;
}

.rune-symbol {
    font-size: 1.5rem;
    color: var(--gold-primary);
    letter-spacing: 0.5em;
    margin-bottom: 12px;
    opacity: 0.7;
}

h1 {
    font-family: var(--font-display);
    font-size: 1.85rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.subtitle {
    font-family: var(--font-body);
    font-size: 1.05rem;
    color: var(--gold-primary);
    font-weight: 400;
    letter-spacing: 0.08em;
    font-style: italic;
}

.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 18px auto 4px;
    max-width: 240px;
    color: var(--gold-primary);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-primary));
}

.divider::after {
    background: linear-gradient(90deg, var(--gold-primary), transparent);
}

.divider svg {
    width: 22px;
    height: 26px;
    flex-shrink: 0;
    filter: drop-shadow(0 0 6px var(--gold-glow));
}

/* Mode Tabs */
.mode-tabs {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 20px;
}

.mode-tab {
    flex: 1;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    padding: 12px 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mode-tab.active {
    color: var(--bg-primary);
    background: var(--gold-primary);
}

/* Input Section */
.input-section {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 24px 20px;
    margin-bottom: 24px;
}

.input-group {
    margin-bottom: 20px;
}

.input-group:last-child {
    margin-bottom: 0;
}

label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--gold-primary);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.input-row {
    display: flex;
    gap: 10px;
    align-items: center;
}

input, select {
    font-family: var(--font-body);
    font-size: 1.1rem;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 14px 16px;
    transition: all 0.3s ease;
    -webkit-appearance: none;
    appearance: none;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--gold-primary);
    box-shadow: 0 0 0 3px var(--gold-dim);
}

input::placeholder {
    color: var(--text-muted);
}

input.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(199, 80, 80, 0.15);
}

.input-distance {
    flex: 1;
    min-width: 0;
}

.input-unit {
    width: 80px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23c9a227' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
    cursor: pointer;
}

.input-time {
    width: 100%;
    text-align: center;
    letter-spacing: 0.05em;
}

.time-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
    text-align: center;
}

/* Preset Distances */
.preset-distances {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.preset-btn {
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.preset-btn:active, .preset-btn.active {
    background: var(--gold-dim);
    border-color: var(--gold-primary);
    color: var(--gold-primary);
}

/* Target Distance Select */
.target-select {
    width: 100%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23c9a227' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

/* Calculate Button */
.btn-calculate {
    width: 100%;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--bg-primary);
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    border: none;
    border-radius: 8px;
    padding: 16px;
    margin-top: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-calculate::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-calculate:hover::before {
    left: 100%;
}

.btn-calculate:active {
    transform: scale(0.98);
}

/* Error Message */
.error-message {
    color: var(--danger);
    font-size: 0.85rem;
    text-align: center;
    padding: 12px;
    background: rgba(199, 80, 80, 0.1);
    border-radius: 8px;
    margin-top: 12px;
    display: none;
}

.error-message.visible {
    display: block;
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* VO2max Display */
.vo2max-display {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    margin-bottom: 24px;
    display: none;
}

.vo2max-display.visible {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.vo2max-label {
    font-weight: 400;
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.vo2max-value {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--gold-primary);
    line-height: 1;
    text-shadow: 0 0 30px var(--gold-glow);
}

.vo2max-unit {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* Level Indicator */
.level-indicator {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
}

.level-bar-container {
    position: relative;
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    margin-bottom: 12px;
}

.level-bar-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 4px;
    background: linear-gradient(90deg, #2e2512 0%, #6b5418 35%, #c9a227 75%, #f3dc8c 100%);
    box-shadow: inset 0 0 0 1px rgba(201, 162, 39, 0.25);
}

.level-bar-marker {
    position: absolute;
    top: -4px;
    width: 16px;
    height: 16px;
    margin-left: -8px;
    background: var(--gold-light);
    border: 2px solid var(--bg-primary);
    transform: rotate(45deg);
    box-shadow: 0 0 10px var(--gold-glow);
    transition: left 0.5s ease;
}

.level-labels {
    position: relative;
    height: 1.2em;
    margin: 0 8px;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.level-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--text-primary);
    text-align: center;
    margin-top: 12px;
    letter-spacing: 0.1em;
}

.level-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 4px;
    font-style: italic;
}

/* Training Insight */
.training-insight {
    background: linear-gradient(135deg, var(--gold-dim), rgba(201, 162, 39, 0.05));
    border: 1px solid var(--border-active);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    display: none;
}

.training-insight.visible {
    display: block;
    animation: fadeIn 0.5s ease 0.3s both;
}

.insight-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.insight-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-active);
    border-radius: 50%;
    font-size: 1.05rem;
    color: var(--gold-primary);
    line-height: 1;
}

.insight-title {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--gold-primary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.insight-text {
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.insight-recommendation {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Results Section */
.results-section {
    display: none;
}

.results-section.visible {
    display: block;
    animation: fadeIn 0.5s ease 0.2s both;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding: 0 4px;
    flex-wrap: wrap;
    gap: 10px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--text-primary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* Toggle Buttons */
.toggle-group {
    display: flex;
    gap: 0;
    background: var(--bg-input);
    border-radius: 6px;
    padding: 3px;
}

.toggle-btn {
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.toggle-btn.active {
    color: var(--bg-primary);
    background: var(--gold-primary);
}

/* Tables */
.data-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--gold-primary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-align: left;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-subtle);
}

.data-table th:last-child {
    text-align: right;
}

.data-table td {
    font-size: 1rem;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table td:first-child {
    color: var(--text-secondary);
}

.data-table td:last-child {
    text-align: right;
    font-weight: 500;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* Training Zones */
.zones-section {
    margin-bottom: 24px;
}

.coach-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.coach-btn {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    padding: 10px 14px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.coach-btn.active {
    color: var(--gold-primary);
    border-color: var(--gold-primary);
    background: var(--gold-dim);
}

/* Zone Row with Expandable Info */
.zone-row {
    border-bottom: 1px solid var(--border-subtle);
}

.zone-row:last-child {
    border-bottom: none;
}

.zone-header {
    width: 100%;
    font: inherit;
    color: inherit;
    text-align: left;
    background: transparent;
    border: none;
    gap: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.zone-header:hover,
.zone-header:active {
    background: var(--bg-input);
}

.zone-info {
    flex: 1;
}

.zone-name,
.zone-percent {
    display: block;
}

.zone-name {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.zone-expand-icon {
    font-size: 0.7rem;
    color: var(--gold-primary);
    transition: transform 0.2s ease;
}

.zone-row.expanded .zone-expand-icon {
    transform: rotate(90deg);
}

.zone-percent {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.zone-pace {
    flex-shrink: 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--gold-primary);
    font-variant-numeric: tabular-nums;
    text-align: right;
}

.zone-details {
    display: none;
    padding: 0 16px 16px;
    animation: slideDown 0.2s ease;
}

.zone-row.expanded .zone-details {
    display: block;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.zone-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 12px;
    background: var(--bg-input);
    border-radius: 8px;
    border-left: 3px solid var(--gold-primary);
}

.zone-workout {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.zone-workout strong {
    color: var(--text-secondary);
}

/* Pace Format Toggle */
.pace-format-toggle {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.pace-format-btn {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid var(--border-subtle);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pace-format-btn.active {
    color: var(--gold-primary);
    border-color: var(--gold-primary);
}

/* Export Section */
.export-section {
    display: none;
    margin-bottom: 24px;
}

.export-section.visible {
    display: block;
}

.export-title {
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
    text-align: center;
}

.export-buttons {
    display: flex;
    gap: 12px;
}

.btn-export {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gold-primary);
    background: var(--bg-card);
    border: 1px solid var(--border-active);
    border-radius: 8px;
    padding: 14px 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-export:active {
    background: var(--gold-dim);
    transform: scale(0.98);
}

.btn-export svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

/* Zones Export */
.zones-export {
    display: flex;
    gap: 10px;
    padding: 14px 16px 16px;
    border-top: 1px solid var(--border-subtle);
}

.btn-zones-export {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-zones-export:active {
    background: var(--gold-dim);
    border-color: var(--gold-primary);
    color: var(--gold-primary);
}

.btn-zones-export svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

/* Coach Note */
.info-note {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    padding: 16px;
    font-style: italic;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: 20px;
}

.footer-rune {
    color: var(--gold-primary);
    opacity: 0.5;
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.footer-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.footer-link {
    color: var(--gold-primary);
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.footer-link:hover {
    opacity: 1;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
}

.modal-overlay.visible {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-active);
    border-radius: 16px;
    padding: 20px;
    max-width: 340px;
    width: 100%;
    text-align: center;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-title {
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: var(--gold-primary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.modal-image-container {
    position: relative;
    margin-bottom: 16px;
}

.modal-image {
    width: 100%;
    max-height: 60vh;
    object-fit: contain;
    border-radius: 8px;
}

.modal-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding: 10px;
    background: var(--bg-input);
    border-radius: 6px;
}

.modal-hint strong {
    color: var(--gold-primary);
}

.modal-actions {
    display: flex;
    gap: 10px;
}

.modal-btn {
    flex: 1;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 14px 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.modal-btn svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.modal-btn-primary {
    color: var(--bg-primary);
    background: var(--gold-primary);
    border: none;
}

.modal-btn-secondary {
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border-subtle);
}

/* Toast notification */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    border: 1px solid var(--gold-primary);
    color: var(--text-primary);
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 0.9rem;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1001;
    text-align: center;
}

.toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Responsive */
@media (max-width: 380px) {
    .container {
        padding: 0 16px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .vo2max-value {
        font-size: 3rem;
    }
    
    .coach-btn {
        padding: 8px 10px;
        font-size: 0.8rem;
    }

    .mode-tab {
        font-size: 0.6rem;
        padding: 10px 6px;
    }

    .btn-export {
        padding: 12px 8px;
        font-size: 0.6rem;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-active);
    border-radius: 3px;
}

/* ============================================
   AGGIUNTE: accessibilità, nuovi blocchi
   ============================================ */

[hidden] {
    display: none !important;
}

:focus-visible {
    outline: 2px solid var(--gold-light);
    outline-offset: 2px;
}

input:focus-visible,
select:focus-visible {
    outline: none;
}

.skip-link {
    position: absolute;
    left: 16px;
    top: -60px;
    z-index: 1100;
    padding: 10px 16px;
    background: var(--gold-primary);
    color: var(--bg-primary);
    font-family: var(--font-display);
    font-size: 0.75rem;
    border-radius: 6px;
    text-decoration: none;
}

.skip-link:focus {
    top: calc(var(--safe-top) + 12px);
}

body.modal-open {
    overflow: hidden;
}

.preset-btn:hover,
.coach-btn:hover,
.pace-format-btn:hover {
    border-color: var(--border-active);
}

.mode-tab:not(.active):hover {
    color: var(--text-primary);
}

/* Live preview del tempo */
.time-hint.ok {
    color: var(--gold-primary);
    font-variant-numeric: tabular-nums;
}

.time-hint.bad {
    color: var(--danger);
}

.btn-calculate:disabled,
.btn-export:disabled,
.btn-zones-export:disabled {
    opacity: 0.6;
    cursor: progress;
}

/* Sorgente del risultato */
.vo2max-source {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
}

.vo2max-display:focus {
    outline: none;
}

/* Etichette della barra livello, posizionate sui valori reali */
.level-labels span {
    position: absolute;
    top: 0;
    transform: translateX(-50%);
    font-variant-numeric: tabular-nums;
}

/* Confronto obiettivo vs attuale */
.compare-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    animation: fadeIn 0.5s ease;
}

.compare-card .insight-title {
    text-align: center;
    margin-bottom: 14px;
}

.compare-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    text-align: center;
    gap: 8px;
}

.compare-label {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.compare-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.compare-value.gold {
    color: var(--gold-primary);
}

.compare-arrow {
    color: var(--gold-primary);
    font-size: 1.4rem;
}

.compare-text {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Header di sezione: meta */
.section-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    font-variant-numeric: tabular-nums;
}

/* Riga evidenziata (la tua distanza / arrivo) */
.data-table tr.highlight td {
    background: var(--gold-dim);
}

.data-table tr.highlight td:first-child {
    color: var(--gold-primary);
}

/* Tempi per ripetuta */
.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.reps-table th,
.reps-table td {
    padding: 12px 8px;
    text-align: right;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.reps-table th:first-child,
.reps-table td:first-child {
    text-align: left;
    padding-left: 14px;
    white-space: normal;
}

.reps-table td:first-child {
    font-size: 0.9rem;
}

.reps-table td:last-child,
.reps-table th:last-child {
    padding-right: 14px;
}

.reps-table td {
    color: var(--text-primary);
}

.data-card + .info-note {
    margin-top: -12px;
}

/* Storico */
.history-section {
    margin-top: 8px;
    animation: fadeIn 0.5s ease;
}

.link-btn {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--text-muted);
    background: none;
    border: none;
    text-decoration: underline;
    cursor: pointer;
    padding: 4px;
}

.link-btn:hover {
    color: var(--danger);
}

.sparkline-wrap:not(:empty) {
    padding: 14px 16px 8px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--gold-primary);
}

.sparkline-head {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.sparkline-head .up {
    color: var(--success);
}

.sparkline-head .down {
    color: var(--danger);
}

.sparkline {
    display: block;
    width: 100%;
    height: 60px;
}

.history-list {
    list-style: none;
    max-height: 320px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-subtle);
}

.history-item:last-child {
    border-bottom: none;
}

.history-load {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    font: inherit;
    color: inherit;
    text-align: left;
    background: none;
    border: none;
    padding: 12px 16px;
    cursor: pointer;
}

.history-load:hover {
    background: var(--bg-input);
}

.history-main {
    font-size: 1rem;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.history-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.history-vdot {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--gold-primary);
    padding: 0 8px;
    font-variant-numeric: tabular-nums;
}

.history-delete {
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
}

.history-delete:hover {
    color: var(--danger);
}

/* Metodo */
.method {
    margin-top: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
}

.method summary {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-secondary);
    padding: 16px 20px;
    cursor: pointer;
    list-style: none;
}

.method summary::-webkit-details-marker {
    display: none;
}

.method summary::before {
    content: '▶';
    display: inline-block;
    margin-right: 10px;
    font-size: 0.6rem;
    color: var(--gold-primary);
    transition: transform 0.2s ease;
}

.method[open] summary::before {
    transform: rotate(90deg);
}

.method-body {
    padding: 0 20px 18px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.method-body p + p {
    margin-top: 10px;
}

.method-body strong {
    color: var(--gold-primary);
    font-weight: 600;
}

@media (max-width: 380px) {
    .reps-table th,
    .reps-table td {
        padding: 10px 6px;
        font-size: 0.9rem;
    }

    .compare-value {
        font-size: 1.6rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-delay: 0ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================
   IDENTITÀ NORRENA: ornamenti, rune, incisioni
   ============================================ */

/* Angoli "incisi" (ferro battuto) sulle schede principali */
.input-section,
.vo2max-display,
.training-insight,
.compare-card {
    position: relative;
}

.input-section::after,
.vo2max-display::after,
.training-insight::after,
.compare-card::after {
    --c: rgba(201, 162, 39, 0.55);
    --l: 14px;
    content: '';
    position: absolute;
    inset: 6px;
    pointer-events: none;
    background:
        linear-gradient(var(--c), var(--c)) top left / var(--l) 1px no-repeat,
        linear-gradient(var(--c), var(--c)) top left / 1px var(--l) no-repeat,
        linear-gradient(var(--c), var(--c)) top right / var(--l) 1px no-repeat,
        linear-gradient(var(--c), var(--c)) top right / 1px var(--l) no-repeat,
        linear-gradient(var(--c), var(--c)) bottom left / var(--l) 1px no-repeat,
        linear-gradient(var(--c), var(--c)) bottom left / 1px var(--l) no-repeat,
        linear-gradient(var(--c), var(--c)) bottom right / var(--l) 1px no-repeat,
        linear-gradient(var(--c), var(--c)) bottom right / 1px var(--l) no-repeat;
}

.vo2max-display {
    background:
        radial-gradient(ellipse at 50% 30%, rgba(201, 162, 39, 0.08), transparent 65%),
        var(--bg-card);
    border-color: var(--border-active);
    overflow: hidden;
}

/* Fascia con il fuþark antico (le 24 rune, divise nei tre ættir) */
.futhark-band {
    font-size: 0.72rem;
    letter-spacing: 0.3em;
    color: var(--gold-primary);
    opacity: 0.35;
    white-space: nowrap;
    overflow: hidden;
    text-align: center;
    line-height: 1;
    user-select: none;
}

.vo2max-display .futhark-band:first-child {
    margin: -8px -20px 18px;
}

.vo2max-display .futhark-band:last-child {
    margin: 18px -20px -8px;
}

/* Il numero appare "inciso" */
.vo2max-value.carve {
    animation: carve 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes carve {
    0% { opacity: 0; filter: blur(10px); letter-spacing: 0.25em; text-shadow: 0 0 0 transparent; }
    60% { opacity: 1; filter: blur(0); text-shadow: 0 0 60px rgba(240, 210, 120, 0.8); }
    100% { letter-spacing: normal; text-shadow: 0 0 30px var(--gold-glow); }
}

/* Rune come icone */
.rune-inline {
    display: inline-block;
    min-width: 1.2em;
    color: var(--gold-primary);
    font-size: 1.05em;
    text-align: center;
}

.zone-rune {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    border: 1px solid var(--border-active);
    border-radius: 4px;
    color: var(--gold-primary);
    font-size: 0.9rem;
    line-height: 1;
}

.zone-info {
    display: flex;
    flex-direction: column;
}

/* Rivetto a rombo davanti ai titoli di sezione */
.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--gold-primary);
    transform: rotate(45deg);
    flex-shrink: 0;
}

/* Navigazione fissa tra le sezioni dei risultati */
.results-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: none;
    gap: 4px;
    margin: 0 -20px 20px;
    padding: calc(var(--safe-top) + 8px) 20px 8px;
    background: rgba(10, 10, 10, 0.88);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-subtle);
    overflow-x: auto;
    scrollbar-width: none;
}

.results-nav::-webkit-scrollbar {
    display: none;
}

.results-nav.visible {
    display: flex;
}

.results-nav a {
    flex: 1 0 auto;
    text-align: center;
    font-family: var(--font-display);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 6px;
    border: 1px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}

.results-nav a.active {
    color: var(--gold-primary);
    border-color: var(--border-active);
    background: var(--gold-dim);
}

#vo2maxDisplay,
#anchorPlan,
#anchorRaces,
#anchorZones,
#anchorReps,
#historySection {
    scroll-margin-top: calc(var(--safe-top) + 64px);
}

@media (max-width: 380px) {
    .results-nav {
        margin: 0 -16px 20px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .results-nav a {
        padding: 8px 6px;
        letter-spacing: 0.08em;
    }
}

/* I controlli dei form non ereditano le impostazioni tipografiche */
button,
input,
select {
    font-variant-numeric: lining-nums;
    font-feature-settings: "lnum" 1;
}

/* ============================================
   INVITO ALL'AZIONE: dai ritmi al programma
   ============================================ */

.insight-link {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.95rem;
    color: var(--gold-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-active);
}

.insight-link:hover {
    border-bottom-color: var(--gold-primary);
}

.plan-cta {
    position: relative;
    margin: 8px 0 32px;
    padding: 22px 20px;
    text-align: center;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(201, 162, 39, 0.12), transparent 70%),
        var(--bg-card);
    border: 1px solid var(--border-active);
    border-radius: 12px;
    overflow: hidden;
}

.plan-cta::after {
    --c: rgba(201, 162, 39, 0.55);
    --l: 14px;
    content: '';
    position: absolute;
    inset: 6px;
    pointer-events: none;
    background:
        linear-gradient(var(--c), var(--c)) top left / var(--l) 1px no-repeat,
        linear-gradient(var(--c), var(--c)) top left / 1px var(--l) no-repeat,
        linear-gradient(var(--c), var(--c)) top right / var(--l) 1px no-repeat,
        linear-gradient(var(--c), var(--c)) top right / 1px var(--l) no-repeat,
        linear-gradient(var(--c), var(--c)) bottom left / var(--l) 1px no-repeat,
        linear-gradient(var(--c), var(--c)) bottom left / 1px var(--l) no-repeat,
        linear-gradient(var(--c), var(--c)) bottom right / var(--l) 1px no-repeat,
        linear-gradient(var(--c), var(--c)) bottom right / 1px var(--l) no-repeat;
}

.plan-cta .futhark-band:first-child {
    margin: -6px -20px 18px;
}

.plan-cta .futhark-band:last-child {
    margin: 18px -20px -6px;
}

.plan-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-primary);
}

.plan-lead {
    margin-top: 10px;
    font-size: 1rem;
    color: var(--text-secondary);
}

.plan-question {
    margin-top: 18px;
    font-family: var(--font-display);
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold-primary);
}

.plan-choice {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 12px;
}

.plan-choice-btn {
    font-family: var(--font-body);
    font-size: 0.98rem;
    line-height: 1.3;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 12px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.plan-choice-btn:hover {
    border-color: var(--border-active);
}

.plan-choice-btn.active {
    color: var(--gold-primary);
    border-color: var(--gold-primary);
    background: var(--gold-dim);
}

.plan-offer {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border-subtle);
    animation: fadeIn 0.4s ease;
}

.plan-offer-rune {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-active);
    border-radius: 50%;
    color: var(--gold-primary);
    font-size: 1.2rem;
}

.plan-offer-name {
    margin-top: 10px;
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--text-primary);
}

.plan-offer-text {
    margin-top: 8px;
    font-size: 1rem;
    color: var(--text-secondary);
}

.plan-offer-cta {
    display: block;
    text-decoration: none;
    text-align: center;
    margin-top: 16px;
}

.plan-context {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

.plan-context:empty {
    display: none;
}

.plan-choice-btn strong {
    display: block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.plan-choice-btn span {
    display: block;
    font-size: 0.92rem;
    color: var(--text-secondary);
}

.plan-choice-btn.active span {
    color: var(--text-primary);
}

.plan-offer-list {
    list-style: none;
    margin: 14px auto 0;
    max-width: 360px;
    text-align: left;
}

.plan-offer-list li {
    position: relative;
    padding-left: 20px;
    margin-top: 6px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.plan-offer-list li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 0.62em;
    width: 6px;
    height: 6px;
    background: var(--gold-primary);
    transform: rotate(45deg);
}

.plan-offer-price {
    margin-top: 14px;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.plan-offer-price span {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--gold-primary);
}

.plan-offer-note {
    margin: 14px auto 0;
    max-width: 380px;
    padding: 10px 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: var(--bg-input);
    border-left: 2px solid var(--border-active);
    border-radius: 6px;
    text-align: left;
}