:root {
    --bg: #0c0d0b;
    --surface: #171814;
    --surface-2: #1e1f1a;
    --card: #20211d;
    --card-raised: #262720;
    --border: rgba(240, 237, 230, 0.08);
    --border-mid: rgba(240, 237, 230, 0.16);
    --gold: #d0ad58;
    --gold-dim: rgba(208, 173, 88, 0.13);
    --green: #6aaa7d;
    --green-dim: rgba(106, 170, 125, 0.12);
    --blue: #6c94d2;
    --blue-dim: rgba(108, 148, 210, 0.12);
    --orange: #d18a5a;
    --orange-dim: rgba(209, 138, 90, 0.12);
    --purple: #a982d8;
    --purple-dim: rgba(169, 130, 216, 0.12);
    --text: #f4f1e8;
    --muted: #a09c91;
    --dim: #6b685f;
    --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.22);
    --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    --font-body: 'Fraunces', Georgia, serif;
    --font-mono: 'DM Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background:
        linear-gradient(90deg, rgba(208, 173, 88, 0.035), transparent 34%),
        linear-gradient(180deg, #11120f 0%, var(--bg) 240px);
    color: var(--text);
    font-family: var(--font-body);
    font-weight: 300;
    min-height: 100vh;
    font-size: 16px;
    line-height: 1.7;
}

/* -- Layout -- */
.app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    height: 100vh;
    position: sticky;
    top: 0;
    flex-shrink: 0;
    background: rgba(23, 24, 20, 0.96);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 24px 0;
    overflow-y: auto;
    box-shadow: 1px 0 0 rgba(255, 255, 255, 0.02);
}

.sidebar-logo {
    padding: 0 20px 18px;
    margin-bottom: 12px;
}

.sidebar-logo h1 {
    font-family: var(--font-body);
    font-size: 24px;
    font-weight: 400;
    font-style: italic;
    color: var(--gold);
    line-height: 1;
}

.sidebar-logo p {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--dim);
    letter-spacing: 1px;
    margin-top: 4px;
}

.sidebar-card {
    margin: 0 12px 18px;
    padding: 14px;
    background:
        linear-gradient(180deg, rgba(208, 173, 88, 0.1), rgba(208, 173, 88, 0.03)),
        var(--surface-2);
    border: 1px solid rgba(208, 173, 88, 0.22);
    border-radius: 8px;
    box-shadow: var(--shadow-inset);
}

.sidebar-card p {
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 12px;
}

.sidebar-card .btn {
    width: 100%;
    padding: 8px 10px;
}

.nav-section {
    padding: 0 12px;
    margin-bottom: 10px;
}

.nav-label {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 2px;
    color: var(--dim);
    text-transform: uppercase;
    padding: 0 8px;
    margin-bottom: 4px;
}

.nav-item {
    display: block;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 7px 10px;
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 300;
    color: var(--muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s, transform 0.15s;
    margin-bottom: 2px;
}

.nav-phase {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.nav-phase-title {
    color: inherit;
}

.nav-phase-meta {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--dim);
}

.nav-item:hover {
    background: var(--surface-2);
    color: var(--text);
    transform: translateX(1px);
}

.nav-item.active {
    background: linear-gradient(90deg, var(--gold-dim), rgba(208, 173, 88, 0.04));
    box-shadow: var(--shadow-inset);
    color: var(--gold);
}

.nav-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 12px 12px;
}


/* -- Main content -- */
.main {
    flex: 1;
    padding: 44px 48px 72px;
    max-width: 820px;
}

/* -- Views -- */
.view {
    display: none;
}

.view.active {
    display: block;
}

/* -- Typography -- */
.page-title {
    font-size: 34px;
    font-weight: 300;
    font-style: italic;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.2;
}

.page-subtitle {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1.5px;
    color: var(--dim);
    margin-bottom: 32px;
}

h2 {
    font-size: 22px;
    font-weight: 300;
    font-style: italic;
    margin-bottom: 8px;
    color: var(--text);
}

h3 {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

p {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.75;
}

/* -- Cards -- */
.card {
    background: linear-gradient(180deg, var(--card-raised), var(--card));
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px 24px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-soft), var(--shadow-inset);
}

.card-accent {
    border-left: 3px solid var(--gold);
    background: var(--gold-dim);
    border-top: none;
    border-right: none;
    border-bottom: none;
    border-radius: 0 8px 8px 0;
    padding: 14px 18px;
    margin-bottom: 12px;
}

.card-accent.green {
    border-left-color: var(--green);
    background: var(--green-dim);
}

.card-accent.blue {
    border-left-color: var(--blue);
    background: var(--blue-dim);
}

.card-accent.orange {
    border-left-color: var(--orange);
    background: var(--orange-dim);
}

.card-accent.purple {
    border-left-color: var(--purple);
    background: var(--purple-dim);
}

.inline-label {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--dim);
    margin-bottom: 5px;
    display: block;
}

/* -- Grid layouts -- */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.stat-card {
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
    box-shadow: var(--shadow-inset);
}

.stat-num {
    font-size: 36px;
    font-weight: 300;
    font-style: italic;
    color: var(--text);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--dim);
}

/* -- Progress -- */
.progress-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(180px, 0.8fr);
    gap: 18px;
    align-items: stretch;
    background:
        linear-gradient(135deg, rgba(208, 173, 88, 0.12), transparent 46%),
        linear-gradient(180deg, var(--card-raised), var(--card));
    border: 1px solid rgba(208, 173, 88, 0.45);
    border-radius: 8px;
    padding: 22px 24px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-soft), var(--shadow-inset);
}

.progress-streak {
    display: flex;
    align-items: baseline;
    gap: 10px;
    font-size: 64px;
    font-style: italic;
    font-weight: 300;
    color: var(--gold);
    line-height: 1;
    margin: 8px 0 10px;
}

.progress-streak span {
    font-family: var(--font-mono);
    font-size: 13px;
    font-style: normal;
    letter-spacing: 1px;
    color: var(--muted);
    text-transform: uppercase;
}

.next-win {
    border-left: 1px solid var(--border-mid);
    padding-left: 18px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.next-win p {
    color: var(--text);
    font-size: 17px;
}

.progress-week-card {
    padding-bottom: 18px;
}

.progress-week {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 7px;
}

.progress-day {
    min-height: 74px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 8px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.progress-day span {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--dim);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.progress-day strong {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
    color: var(--muted);
    text-transform: uppercase;
}

.progress-day.done {
    background: var(--green-dim);
    border-color: var(--green);
}

.progress-day.done strong {
    color: var(--green);
}

.progress-day.today {
    border-color: var(--gold);
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.achievement {
    display: grid;
    grid-template-columns: 46px 1fr;
    gap: 12px;
    align-items: start;
    min-height: 88px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
}

.achievement.unlocked.green {
    border-color: var(--green);
    background: var(--green-dim);
}

.achievement.unlocked.gold {
    border-color: var(--gold);
    background: var(--gold-dim);
}

.achievement.unlocked.blue {
    border-color: var(--blue);
    background: var(--blue-dim);
}

.achievement.unlocked.orange {
    border-color: var(--orange);
    background: var(--orange-dim);
}

.achievement.unlocked.purple {
    border-color: var(--purple);
    background: var(--purple-dim);
}

.achievement.locked {
    opacity: 0.62;
}

.achievement-mark {
    border: 1px solid var(--border-mid);
    border-radius: 6px;
    padding: 4px 0;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 1px;
    color: var(--dim);
}

.achievement.unlocked .achievement-mark {
    border-color: currentColor;
    color: var(--text);
}

.achievement-title {
    font-size: 16px;
    font-style: italic;
    color: var(--text);
    margin-bottom: 2px;
}

.achievement p {
    font-size: 13px;
    line-height: 1.45;
}

.progress-mini-stats {
    margin-top: 6px;
}

/* -- Streak -- */
.streak-row {
    display: flex;
    gap: 6px;
    margin-bottom: 6px;
}

.streak-dot {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: var(--surface);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--dim);
}

.streak-dot.done {
    background: var(--green-dim);
    border-color: var(--green);
    color: var(--green);
}

.streak-dot.today {
    border-color: var(--gold);
}

/* -- Timer -- */
.timer-wrap {
    text-align: center;
    padding: 32px 0 24px;
}

.timer-block-meta {
    margin-bottom: 14px;
}

.timer-block-title {
    font-size: 20px;
    font-style: italic;
    color: var(--text);
}

.timer-num {
    font-family: var(--font-mono);
    font-size: 72px;
    font-weight: 400;
    color: var(--text);
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 20px;
}

.timer-num.done {
    color: var(--green);
}

.practice-note-card {
    padding: 16px 18px;
}

.practice-note-input {
    width: 100%;
    resize: vertical;
    min-height: 88px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 10px 12px;
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
}

.practice-note-input:focus {
    outline: none;
    border-color: var(--gold);
}

.practice-note-input::placeholder {
    color: var(--dim);
}

.note-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.note-item {
    border-left: 3px solid var(--border-mid);
    padding-left: 12px;
}

.note-date {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1px;
    color: var(--dim);
    margin-bottom: 3px;
}

.note-text {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    font-size: 14px;
}

.timer-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
}

/* -- Buttons -- */
.btn {
    background: none;
    border: 1px solid var(--border-mid);
    border-radius: 7px;
    padding: 9px 20px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--text);
    cursor: pointer;
    transition: all 0.15s;
}

.btn:hover {
    background: var(--card);
    border-color: var(--border-mid);
}

.btn:active {
    transform: scale(0.97);
}

.btn-gold {
    background: var(--gold);
    border-color: var(--gold);
    color: #0f0f0d;
}

.btn-gold:hover {
    opacity: 0.88;
    background: var(--gold);
}

.btn-ghost {
    color: var(--muted);
}

.btn-ghost:hover {
    color: var(--text);
}

/* -- Block selector -- */
.block-row {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.block-chip {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 6px 14px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.5px;
    color: var(--muted);
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.block-chip:hover {
    border-color: var(--border-mid);
    color: var(--text);
}

.block-chip.active {
    background: var(--gold-dim);
    border-color: var(--gold);
    color: var(--gold);
}

.block-chip .chip-min {
    background: var(--border);
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 9px;
}

.block-chip.active .chip-min {
    background: rgba(201, 168, 76, 0.25);
}

/* -- Progress bar -- */
.prog-bar-bg {
    height: 3px;
    background: var(--surface);
    border-radius: 2px;
    margin-bottom: 6px;
}

.prog-bar-fill {
    height: 3px;
    background: var(--gold);
    border-radius: 2px;
    transition: width 0.4s ease;
}

/* -- Mono / tab blocks -- */
.tab-block {
    background: #0a0a09;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
    margin: 12px 0;
    font-family: var(--font-mono);
    font-size: 13px;
    color: #c8c0a8;
    white-space: pre;
    overflow-x: auto;
    line-height: 1.9;
}

/* -- Key map -- */
.keymap-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 12px 0 20px;
}

.key-chip {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 16px;
    text-align: center;
    min-width: 60px;
}

.key-letter {
    font-size: 22px;
    font-style: italic;
    font-weight: 300;
    color: var(--text);
    line-height: 1;
    margin-bottom: 4px;
}

.key-fret {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--dim);
    letter-spacing: 0.5px;
}

.key-chip.highlight {
    border-color: var(--gold);
    background: var(--gold-dim);
}

.key-chip.highlight .key-letter {
    color: var(--gold);
}

/* -- Step list -- */
.step-list {
    list-style: none;
    padding: 0;
    margin: 10px 0;
}

.step-list li {
    display: flex;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
}

.step-list li:last-child {
    border-bottom: none;
}

.step-list li::before {
    content: '—';
    color: var(--dim);
    flex-shrink: 0;
    margin-top: 1px;
}

/* -- Pill -- */
.pill {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 12px;
    margin-bottom: 10px;
}

.pill-gold {
    background: var(--gold-dim);
    color: var(--gold);
}

.pill-green {
    background: var(--green-dim);
    color: var(--green);
}

.pill-blue {
    background: var(--blue-dim);
    color: var(--blue);
}

.pill-orange {
    background: var(--orange-dim);
    color: var(--orange);
}

.pill-purple {
    background: var(--purple-dim);
    color: var(--purple);
}

/* -- Ref link -- */
.ref-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--blue);
    text-decoration: none;
    padding: 4px 0;
    letter-spacing: 0.3px;
    transition: opacity 0.15s;
}

.ref-link:hover {
    opacity: 0.75;
}

.link-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* -- Section divider -- */
.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 24px 0;
}

/* -- Week progression -- */
.week-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 12px 20px;
    margin: 10px 0;
    align-items: baseline;
}

.week-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--gold);
    letter-spacing: 0.5px;
}

.week-desc {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
}

/* -- Phase section list -- */
.section-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.section-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    cursor: pointer;
    transition: border-color 0.15s;
    text-decoration: none;
}

.section-item:hover {
    border-color: var(--border-mid);
}

.section-item-title {
    font-size: 14px;
    color: var(--text);
    font-family: var(--font-body);
    font-weight: 300;
}

.section-item-arrow {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--dim);
}

/* -- Milestone card -- */
.milestone-card {
    border: 1px solid var(--green);
    background: var(--green-dim);
    border-radius: 10px;
    padding: 18px 22px;
    margin-top: 20px;
}

.milestone-card h3 {
    color: var(--green);
    margin-bottom: 8px;
}

.milestone-card p {
    font-size: 14px;
}

/* -- Technique cards -- */
.technique-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 10px;
}

.technique-name {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--text);
    text-transform: uppercase;
    margin-bottom: 8px;
}

/* -- Sidebar current phase card -- */
.sidebar-phase-card {
    border-left: 2px solid var(--gold);
    padding: 9px 10px 9px 13px;
    border-radius: 0 6px 6px 0;
    background: rgba(255, 255, 255, 0.025);
    margin-bottom: 2px;
    transition: background 0.15s;
    cursor: pointer;
}

.sidebar-phase-card:hover {
    background: var(--surface-2);
}

.sidebar-phase-num {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 1.5px;
    color: var(--dim);
    text-transform: uppercase;
    margin-bottom: 3px;
}

.sidebar-phase-name {
    font-size: 13px;
    font-style: italic;
    color: var(--text);
    line-height: 1.3;
    margin-bottom: 2px;
}

.sidebar-phase-time {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--dim);
}

.nav-item-subtle {
    font-size: 13px;
    color: var(--dim);
}

/* -- Sidebar sync section -- */
.sidebar-sync {
    margin-top: auto;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
}

.sync-status-text {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--dim);
    margin: 4px 0 8px;
    letter-spacing: 0.5px;
}

.sync-action-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.5px;
    color: var(--dim);
    cursor: pointer;
    transition: all 0.15s;
    width: 100%;
    text-align: center;
}

.sync-action-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
}

/* -- Back button -- */
.back-btn {
    background: none;
    border: none;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1px;
    color: var(--dim);
    cursor: pointer;
    padding: 0;
    margin-bottom: 24px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.15s;
}

.back-btn:hover {
    color: var(--muted);
}

/* -- Mobile -- */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 8px 0 12px;
    z-index: 100;
}

.mobile-nav-inner {
    display: flex;
    justify-content: space-around;
}

.mobile-nav-btn {
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 1px;
    color: var(--dim);
    cursor: pointer;
    padding: 4px 12px;
    border-radius: 6px;
    transition: color 0.15s;
}

.mobile-nav-btn.active {
    color: var(--gold);
}

.mobile-nav-btn svg {
    width: 18px;
    height: 18px;
}

@media (max-width: 700px) {
    .sidebar {
        display: none;
    }

    .main {
        padding: 24px 20px 80px;
    }

    .mobile-nav {
        display: block;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .grid-3,
    .achievement-grid,
    .progress-hero {
        grid-template-columns: 1fr;
    }

    .next-win {
        border-left: none;
        border-top: 1px solid var(--border-mid);
        padding-left: 0;
        padding-top: 16px;
    }

    .progress-week {
        grid-template-columns: repeat(7, minmax(38px, 1fr));
        overflow-x: auto;
        padding-bottom: 4px;
    }

    .progress-day {
        min-width: 38px;
        min-height: 68px;
    }

    .timer-num {
        font-size: 56px;
    }
}