/* ============================================
   MeloAI Stylesheet — Full Rewrite
   ============================================ */

/* ---- CSS CUSTOM PROPERTIES / THEME ---- */
:root {
    --accent-green:  #1eae82;
    --accent-red:    #c1443c;
    --accent-orange: #d85a30;
    --accent-purple: #7f77dd;
    --accent-blue:   #378add;
    --accent-yellow: #f6c453;

    /* === LIGHT THEME (default) === */
    --bg-color:       #f0f0f5;
    --phone-bg:       #ffffff;
    --phone-border:   #111111;
    --text-color:     #111111;
    --text-muted:     #6b6b6b;
    --border-color:   #e4e4e4;
    --input-border:   #b0b0b0;
    --card-bg:        #ffffff;
    --header-bg:      #e4e4e4;
    --stave-bg:       #daeeff;
    --nav-bg:         #ffffff;
    --nav-border:     #e4e4e4;
    --piano-white:    #ffffff;
    --piano-black:    #1a1a1a;
    --piano-white-border: #9a9a9a;
    --piano-active-white: #b0d8f5;
    --shadow:         rgba(0,0,0,0.14);

    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
}

[data-theme="dark"] {
    /* === DARK THEME === */
    --bg-color:       #0a0a0d;
    --phone-bg:       #141418;
    --phone-border:   #3a3a44;
    --text-color:     #f0f0f5;
    --text-muted:     #888898;
    --border-color:   #2a2a34;
    --input-border:   #4a4a58;
    --card-bg:        #1e1e28;
    --header-bg:      #222230;
    --stave-bg:       #151e2a;
    --nav-bg:         #141418;
    --nav-border:     #2a2a34;
    --piano-white:    #d0d8f0;
    --piano-black:    #080810;
    --piano-white-border: #6a6a7a;
    --piano-active-white: #1c4a60;
    --shadow:         rgba(0,0,0,0.5);
}

/* ---- RESET ---- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

body {
    background: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    transition: background 0.3s, color 0.3s;
}

/* ---- PHONE MOCKUP FRAME ---- */
.phone-mockup {
    width: 415px;
    height: 850px;
    background: var(--phone-bg);
    border: 13px solid var(--phone-border);
    border-radius: 56px;
    box-shadow: 0 30px 60px -10px var(--shadow);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

/* Notch */
.phone-mockup::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 136px; height: 24px;
    background: var(--phone-border);
    border-bottom-left-radius: 18px;
    border-bottom-right-radius: 18px;
    z-index: 200;
}

/* Home bar */
.phone-mockup::after {
    content: '';
    position: absolute;
    bottom: 7px; left: 50%;
    transform: translateX(-50%);
    width: 118px; height: 4px;
    background: var(--phone-border);
    border-radius: 2px;
    z-index: 200;
}

/* ---- SPLASH SCREEN ---- */
.splash-screen {
    position: absolute;
    inset: 0;
    background: var(--phone-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 18px;
    z-index: 500;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.splash-screen.fade-out {
    opacity: 0;
    transform: scale(1.04);
    pointer-events: none;
}

.splash-screen.hidden { display: none; }

.splash-logo-ring {
    animation: splashPulse 1.5s ease-in-out infinite;
}

@keyframes splashPulse {
    0%,100% { transform: scale(1); }
    50%      { transform: scale(1.07); }
}

.splash-title {
    font-size: 36px;
    font-weight: 900;
    letter-spacing: 1px;
    color: var(--text-color);
}

/* ---- STATUS BAR ---- */
.status-bar {
    height: 36px;
    background: var(--header-bg);
    padding: 10px 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    z-index: 99;
    flex-shrink: 0;
    transition: background 0.3s;
}

.status-bar-icons {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
}

/* ---- APP CONTAINER ---- */
.app-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    transition: background 0.3s;
}

/* ---- AUTH SCREENS ---- */
.screen {
    flex: 1;
    overflow-y: auto;
    padding: 22px 24px;
    display: none;
    flex-direction: column;
    scrollbar-width: none;
}
.screen::-webkit-scrollbar { display: none; }
.screen.active-auth { display: flex; animation: fadeIn .25s ease; }

.auth-screen {
    padding-top: 32px;
    padding-bottom: 30px;
    background: var(--phone-bg);
    transition: background 0.3s;
}

.auth-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.auth-logo-text {
    font-size: 26px;
    font-weight: 900;
    letter-spacing: 0.5px;
    color: var(--text-color);
}

.auth-title {
    font-size: 34px;
    font-weight: 900;
    margin-bottom: 6px;
    color: var(--text-color);
}

.auth-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 8px;
}

.auth-field-group {
    margin-bottom: 20px;
}

.auth-label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-red);
    margin-bottom: 6px;
}

.auth-input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1.5px solid var(--input-border);
    padding: 8px 0;
    font-size: 16px;
    color: var(--text-color);
    outline: none;
    font-weight: 500;
    transition: border-color 0.2s;
}

.auth-input:focus { border-bottom-color: var(--accent-red); }
.auth-input::placeholder { color: var(--text-muted); }

.auth-checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 6px 0 22px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-color);
    font-weight: 600;
    line-height: 1.4;
}

.auth-checkbox-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    border: 2px solid var(--accent-red);
    border-radius: 3px;
    accent-color: var(--accent-red);
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
}

.auth-link {
    color: var(--accent-red);
    font-weight: 700;
    cursor: pointer;
}

.btn-auth-primary {
    width: 100%;
    height: 52px;
    background: var(--accent-red);
    color: white;
    border: none;
    border-radius: 26px;
    font-size: 18px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(193,68,60,0.3);
    transition: transform 0.1s, opacity 0.2s;
    margin-bottom: 18px;
}
.btn-auth-primary:active { transform: scale(0.98); opacity: 0.9; }

/* Social Login Buttons */
.btn-social {
    width: 100%;
    height: 46px;
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 10px;
    transition: opacity 0.2s;
}
.btn-social:active { opacity: 0.8; }

.btn-google  { background: white; color: #333; }
.btn-facebook { background: #1877F2; color: white; border-color: #1877F2; }
.btn-apple   { background: #000; color: white; border-color: #000; }

[data-theme="dark"] .btn-google { background: var(--card-bg); color: var(--text-color); }
[data-theme="dark"] .btn-apple  { background: #fff; color: #000; }

.auth-bottom-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    font-size: 14px;
}

.auth-muted { color: var(--text-muted); }

/* ---- MAIN SCREENS (after login) ---- */
.main-screen {
    padding-bottom: 82px; /* space for bottom nav */
    background: var(--phone-bg);
    transition: background 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- USER HEADER ---- */
.user-header {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.user-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    border: 3px solid var(--accent-green);
    background: var(--accent-green);
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 12px;
    flex-shrink: 0;
}

.user-welcome-info h3 {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}
.user-welcome-info h2 {
    font-size: 17px;
    font-weight: 800;
    color: var(--text-color);
}

/* ---- SCREEN TITLE ---- */
.screen-title-section {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 14px;
}

.screen-title-section h1 {
    font-size: 26px;
    font-weight: 900;
    line-height: 1.1;
    color: var(--text-color);
}

/* ---- HOME SHORTCUTS ---- */
.home-shortcuts {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.shortcut-card {
    background: var(--card-bg);
    border: 1.5px solid var(--border-color);
    border-radius: 14px;
    padding: 13px 14px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 1px 4px var(--shadow);
}

.shortcut-card:active { transform: translateY(1px); box-shadow: none; }

.shortcut-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.shortcut-icon-box {
    width: 42px; height: 42px;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.shortcut-info h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-color);
}
.shortcut-info p {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.shortcut-arrow {
    font-size: 22px;
    color: var(--text-muted);
    font-weight: 300;
}

/* ---- FORM CONTROLS ---- */
.form-label {
    font-size: 12px;
    font-weight: 800;
    color: var(--accent-red);
    margin-bottom: 5px;
    margin-top: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dropdown-container { position: relative; width: 100%; margin-bottom: 10px; }
.dropdown-container::after {
    content: '▾';
    position: absolute;
    right: 14px; top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.dropdown-select {
    width: 100%;
    height: 42px;
    background: var(--card-bg);
    border: 1.5px solid var(--input-border);
    border-radius: 10px;
    color: var(--text-color);
    padding: 0 38px 0 14px;
    font-size: 14px;
    font-weight: 600;
    appearance: none;
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s, background 0.3s;
}

.dropdown-select:focus { border-color: var(--accent-green); }

.text-input {
    width: 100%;
    height: 42px;
    background: var(--card-bg);
    border: 1.5px solid var(--input-border);
    border-radius: 10px;
    color: var(--text-color);
    padding: 0 14px;
    font-size: 14px;
    font-weight: 600;
    outline: none;
    margin-bottom: 10px;
    transition: border-color 0.2s, background 0.3s;
}

.text-input:focus { border-color: var(--accent-green); }
.text-input::placeholder { color: var(--text-muted); }

/* ---- BUTTONS ---- */
.btn-primary {
    width: 100%;
    height: 52px;
    background: var(--accent-green);
    border: none;
    border-radius: 26px;
    color: white;
    font-size: 17px;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(30,174,130,0.28);
    transition: transform 0.1s, opacity 0.2s;
}
.btn-primary:active { transform: scale(0.98); opacity: 0.9; }

.btn-action-red {
    background: var(--accent-red);
    box-shadow: 0 4px 12px rgba(193,68,60,0.28);
}

.btn-secondary-white {
    height: 52px;
    background: var(--card-bg);
    border: 1.5px solid var(--input-border);
    border-radius: 14px;
    color: var(--text-color);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 0.2s;
}
.btn-secondary-white:active { background: var(--border-color); }

.btn-sm-header {
    background: var(--accent-green);
    border: none;
    border-radius: 20px;
    color: white;
    padding: 7px 18px;
    font-weight: 800;
    font-size: 13px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(30,174,130,0.3);
    flex-shrink: 0;
}

/* ---- SUB-TABS (Create DAW) ---- */
.create-subtabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    margin-bottom: 14px;
    scrollbar-width: none;
    padding-bottom: 2px;
}
.create-subtabs::-webkit-scrollbar { display: none; }

.subtab-btn {
    flex-shrink: 0;
    padding: 7px 14px;
    background: var(--card-bg);
    border: 1.5px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.subtab-btn.active {
    background: var(--accent-green);
    color: white;
    border-color: var(--accent-green);
}

.daw-subview { display: none; }
.daw-subview:first-of-type { display: block; }

/* ---- STAVE VISUALIZER ---- */
.stave-container {
    width: 100%;
    height: 86px;
    background: var(--stave-bg);
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 10px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding-left: 36px;
    transition: background 0.3s;
}

.treble-clef {
    position: absolute;
    left: 2px;
    top: 8px;
    opacity: 0.85;
}

.stave-lines {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    padding: 14px 0;
}

.stave-line {
    width: 100%;
    height: 1.5px;
    background: var(--border-color);
    opacity: 0.7;
}

.stave-notes-area {
    position: absolute;
    inset: 0;
    left: 40px;
}

.melody-waveform {
    position: absolute;
    bottom: 6px;
    right: 10px;
    width: 110px;
    height: 36px;
    opacity: 0.7;
}

.note-bubble {
    position: absolute;
    width: 13px;
    height: 10px;
    background: var(--text-muted);
    border-radius: 50%;
    border: 1.5px solid var(--text-color);
    transform: translate(-50%, -50%);
    transition: background 0.2s;
}

.note-bubble.highlighted {
    background: var(--accent-yellow);
    box-shadow: 0 0 6px var(--accent-yellow);
    border-color: #c49a10;
}

/* ---- PIANO KEYBOARD ---- */
.piano-keyboard-container {
    width: 100%;
    height: 150px;
    background: var(--stave-bg);
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    padding: 4px;
    margin-bottom: 8px;
    overflow: hidden;
    transition: background 0.3s;
}

.piano-keys-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
}

.piano-white-key {
    flex: 1;
    background: var(--piano-white);
    border: 1px solid var(--piano-white-border);
    border-radius: 0 0 5px 5px;
    height: 100%;
    cursor: pointer;
    z-index: 1;
    position: relative;
    transition: background 0.06s;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 5px;
}

.piano-white-key .key-label {
    font-size: 8px;
    font-weight: 700;
    color: var(--piano-white-border);
    pointer-events: none;
}

.piano-white-key:active,
.piano-white-key.active {
    background: var(--piano-active-white);
}

.piano-black-key {
    position: absolute;
    width: 5.8%;
    height: 62%;
    background: var(--piano-black);
    border-radius: 0 0 4px 4px;
    z-index: 2;
    cursor: pointer;
    transition: background 0.06s;
    box-shadow: 0 3px 5px rgba(0,0,0,0.35);
}

.piano-black-key:active,
.piano-black-key.active {
    background: var(--accent-green);
}

/* ---- PLAYBACK CONTROLS ---- */
.playback-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 18px;
    margin: 10px 0;
}

.control-btn {
    width: 50px; height: 50px;
    border-radius: 50%;
    border: 2px solid var(--input-border);
    background: transparent;
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 18px;
    transition: background 0.2s;
}
.control-btn:active { background: var(--border-color); }

.btn-play-pause {
    width: 62px; height: 62px;
    background: var(--accent-green) !important;
    border-color: var(--accent-green) !important;
    color: white !important;
    box-shadow: 0 4px 14px rgba(30,174,130,0.3);
    font-size: 22px !important;
}

.tempo-info {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 10px;
}

.tempo-info kbd {
    background: var(--border-color);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 10px;
    font-family: monospace;
    color: var(--text-color);
}

/* ---- DAW SETTINGS GRID ---- */
.daw-settings-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 8px;
}

.daw-grid-card {
    background: var(--card-bg);
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 6px 8px;
    text-align: center;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 74px;
    gap: 4px;
    transition: background 0.2s, border-color 0.2s, transform 0.1s;
    box-shadow: 0 1px 3px var(--shadow);
}
.daw-grid-card:active { transform: scale(0.96); }
.daw-grid-card h4 { font-size: 11px; font-weight: 700; color: var(--text-color); line-height: 1.2; }
.daw-grid-card .daw-card-icon { display: flex; justify-content: center; align-items: center; }
.active-card { border-color: var(--accent-green) !important; background: rgba(30,174,130,0.06) !important; }

/* ---- CHORDS CARDS ---- */
.chords-suggestion-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin: 10px 0;
}

.suggested-chord-card {
    background: var(--card-bg);
    border: 2px solid var(--input-border);
    border-radius: 14px;
    padding: 10px 4px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    transition: transform 0.15s;
    box-shadow: 0 1px 4px var(--shadow);
}
.suggested-chord-card:active { transform: scale(0.94); }

.suggested-chord-circle {
    width: 44px; height: 44px;
    border-radius: 50%;
    border: 3px solid var(--input-border);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 17px;
    font-weight: 900;
}

.suggested-chord-card span { font-size: 10px; color: var(--text-muted); font-weight: 600; }

.chord-c { border-color: var(--accent-purple) !important; }
.chord-c .suggested-chord-circle { border-color: var(--accent-purple); color: var(--accent-purple); }
.chord-g { border-color: var(--accent-orange) !important; }
.chord-g .suggested-chord-circle { border-color: var(--accent-orange); color: var(--accent-orange); }
.chord-am { border-color: var(--accent-blue) !important; }
.chord-am .suggested-chord-circle { border-color: var(--accent-blue); color: var(--accent-blue); }
.chord-f { border-color: var(--accent-green) !important; }
.chord-f .suggested-chord-circle { border-color: var(--accent-green); color: var(--accent-green); }

.action-strip {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

/* ---- ACCOMPANIMENT LIST ---- */
.accompaniment-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 14px;
}

.accompaniment-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 14px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: border-color 0.2s, transform 0.1s;
    box-shadow: 0 1px 4px var(--shadow);
}
.accompaniment-card:active { transform: scale(0.99); }
.accompaniment-card.selected { border-color: var(--accent-green); }

.accompaniment-card-left { display: flex; align-items: center; gap: 12px; }

.acc-play-btn {
    width: 42px; height: 42px;
    border-radius: 50%;
    border: 2.5px solid var(--text-muted);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 14px;
    cursor: pointer;
}

.acc-info h4 { font-size: 14px; font-weight: 700; color: var(--text-color); }
.acc-info p  { font-size: 12px; color: var(--text-muted); }

.acc-checkmark {
    width: 24px; height: 24px;
    border-radius: 50%;
    border: 2.5px solid var(--input-border);
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-weight: 800;
    font-size: 12px;
    transition: background 0.2s, border-color 0.2s;
}

/* ---- TIMELINE ---- */
.timeline-container {
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    background: var(--card-bg);
    overflow: hidden;
    margin-bottom: 12px;
    position: relative;
    transition: background 0.3s;
}

.timeline-header-ruler {
    height: 36px;
    background: var(--header-bg);
    border-bottom: 1.5px solid var(--border-color);
    display: flex;
    align-items: flex-end;
    padding-bottom: 4px;
    transition: background 0.3s;
}

.timeline-ruler-label {
    width: 55px;
    font-size: 10px;
    font-weight: 700;
    color: var(--text-muted);
    padding-left: 8px;
}

.timeline-ruler-steps {
    flex: 1;
    position: relative;
    height: 100%;
}

.ruler-tick {
    position: absolute;
    bottom: 0;
    height: 14px;
    border-left: 1.5px solid var(--input-border);
    font-size: 9px;
    font-weight: 700;
    color: var(--text-muted);
    padding-left: 2px;
}

.timeline-tracks-grid { display: flex; flex-direction: column; position: relative; }

.timeline-track-row {
    height: 50px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}
.timeline-track-row:last-child { border-bottom: none; }

.timeline-track-header {
    width: 55px;
    padding-left: 8px;
    font-size: 12px;
    font-weight: 800;
    flex-shrink: 0;
}

.timeline-track-lane {
    flex: 1;
    height: 100%;
    position: relative;
    background-image: repeating-linear-gradient(
        to right,
        var(--border-color) 0px,
        var(--border-color) 1px,
        transparent 1px,
        transparent 12.5%
    );
}

.timeline-block {
    position: absolute;
    height: 34px;
    top: 8px;
    border-radius: 6px;
    border: 2px solid transparent;
    opacity: 0.65;
    cursor: pointer;
    min-width: 6px;
}

.timeline-block:hover { opacity: 0.9; }

.melody-track { color: var(--accent-blue); }
.melody-block  { background: rgba(55,138,221,.3); border-color: var(--accent-blue); }
.chords-track  { color: var(--accent-purple); }
.chords-block  { background: rgba(127,119,221,.3); border-color: var(--accent-purple); }
.drums-track   { color: var(--accent-orange); }
.drums-block   { background: rgba(216,90,48,.3); border-color: var(--accent-orange); }
.bass-track    { color: #639922; }
.bass-block    { background: rgba(99,153,34,.3); border-color: #639922; }

/* Playhead */
.playhead-marker {
    position: absolute;
    width: 2.5px;
    top: 36px; /* below ruler */
    bottom: 0;
    background: var(--accent-red);
    left: 55px;
    pointer-events: none;
    z-index: 10;
    transition: left 0.08s linear;
}

.playhead-marker::before {
    content: '';
    position: absolute;
    top: -8px;
    left: -5.75px;
    border: 7px solid transparent;
    border-top: 8px solid var(--accent-red);
}

/* ---- EXPORT ---- */
.export-formats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 14px;
}

.export-format-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 14px;
    padding: 12px 6px;
    text-align: center;
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: border-color 0.2s;
    box-shadow: 0 1px 4px var(--shadow);
}

.export-format-circle {
    width: 44px; height: 44px;
    border-radius: 50%;
    border: 3px solid var(--input-border);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 13px;
    font-weight: 800;
}

.export-format-card span { font-size: 10px; color: var(--text-muted); font-weight: 600; line-height: 1.3; text-align: center; }

.export-format-checkmark {
    position: absolute;
    top: -7px; right: -7px;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: var(--accent-green);
    color: white;
    font-size: 10px;
    font-weight: 800;
    display: none;
    justify-content: center;
    align-items: center;
}

.export-format-card.selected { border-color: var(--accent-orange); }
.export-format-card.selected .export-format-checkmark { display: flex; }

.share-destinations {
    display: flex;
    justify-content: space-around;
    margin: 12px 0;
}

.share-dest-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.share-dest-circle {
    width: 50px; height: 50px;
    border-radius: 50%;
    border: 3px solid var(--input-border);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    font-weight: 900;
    transition: transform 0.15s;
}
.share-dest-card:active .share-dest-circle { transform: scale(0.92); }
.share-dest-card span { font-size: 11px; color: var(--text-muted); font-weight: 600; }

.share-msg .share-dest-circle { border-color: var(--accent-blue); color: var(--accent-blue); }
.share-wa .share-dest-circle  { border-color: var(--accent-orange); color: var(--accent-orange); }
.share-drv .share-dest-circle { border-color: var(--accent-green); color: var(--accent-green); }
.share-eml .share-dest-circle { border-color: var(--accent-purple); color: var(--accent-purple); }

.export-progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin: 10px 0;
    display: none;
}

.export-progress-bar {
    height: 100%;
    background: var(--accent-green);
    width: 0%;
    transition: width 0.15s ease-out;
    border-radius: 4px;
}

/* ---- PROJECTS LIST ---- */
.projects-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
}

.project-item {
    background: var(--card-bg);
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    padding: 13px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 4px var(--shadow);
}

.project-info h4 { font-size: 14px; font-weight: 700; color: var(--text-color); }
.project-info p  { font-size: 12px; color: var(--text-muted); }

.project-actions { display: flex; gap: 6px; }
.project-btn {
    padding: 6px 11px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
    border: none;
    cursor: pointer;
    white-space: nowrap;
}
.project-play   { background: var(--accent-green); color: white; }
.project-delete { background: var(--accent-red); color: white; }

/* ---- AI CHAT ---- */
.ai-chat-history {
    flex: 1;
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    padding: 12px;
    overflow-y: auto;
    background: var(--card-bg);
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 240px;
    max-height: 380px;
    margin-bottom: 12px;
    transition: background 0.3s;
}

.ai-bubble {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 13px;
    line-height: 1.5;
    max-width: 88%;
}

.ai-bubble.assistant {
    background: var(--border-color);
    color: var(--text-color);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.ai-bubble.user {
    background: var(--accent-green);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.ai-chat-input-row { display: flex; gap: 8px; align-items: center; }

/* ---- PROFILE ---- */
.profile-card {
    background: var(--card-bg);
    border: 1.5px solid var(--border-color);
    border-radius: 16px;
    padding: 22px;
    text-align: center;
    margin-bottom: 16px;
    box-shadow: 0 1px 6px var(--shadow);
    transition: background 0.3s;
}

.profile-avatar-large {
    width: 76px; height: 76px;
    border-radius: 50%;
    background: var(--accent-green);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 12px;
    border: 4px solid var(--border-color);
}

.profile-card h2 { font-size: 19px; font-weight: 800; color: var(--text-color); }

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

.settings-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 13px 14px;
    background: var(--card-bg);
    border: 1.5px solid var(--border-color);
    border-radius: 12px;
    transition: background 0.3s;
    box-shadow: 0 1px 3px var(--shadow);
}

.settings-row label { font-size: 14px; font-weight: 700; color: var(--text-color); cursor: pointer; }

/* ---- TOGGLE SWITCH ---- */
.switch {
    position: relative;
    display: inline-block;
    width: 50px; height: 26px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--input-border);
    border-radius: 34px;
    transition: 0.3s;
}
.slider::before {
    content: '';
    position: absolute;
    width: 18px; height: 18px;
    left: 4px; bottom: 4px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
    box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
input:checked + .slider { background: var(--accent-green); }
input:checked + .slider::before { transform: translateX(24px); }

/* ---- BOTTOM NAV ---- */
.bottom-nav {
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    height: 76px;
    background: var(--nav-bg);
    border-top: 1.5px solid var(--nav-border);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0 6px 16px;
    z-index: 100;
    transition: background 0.3s, border-color 0.3s;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    flex: 1;
    padding: 4px 0;
    transition: color 0.2s;
    gap: 2px;
}

.nav-item-icon {
    width: 28px; height: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    transition: background 0.2s;
}

.nav-item.active { color: var(--accent-green); }

.nav-item.active .nav-item-icon {
    border: 2.5px solid var(--accent-green);
    background: rgba(30,174,130,0.12);
}

/* ---- MISC HELPER ---- */
.desktop-tip {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 10px;
    line-height: 1.5;
}

/* ---- RESPONSIVE — full screen on mobile ---- */
@media (max-width: 440px) {
    .phone-mockup {
        width: 100vw;
        height: 100dvh;
        border-radius: 0;
        border: none;
        box-shadow: none;
    }
    .phone-mockup::before,
    .phone-mockup::after { display: none; }
}