:root {
    --md-ref-typeface-brand: 'Manrope', 'Noto Sans', sans-serif;
    --md-ref-typeface-plain: 'Manrope', 'Noto Sans', sans-serif;
    --md-sys-color-primary: #ffb95c;
    --md-sys-color-on-primary: #4d2700;
    --md-sys-color-primary-container: #6f3b00;
    --md-sys-color-on-primary-container: #ffddb5;
    --md-sys-color-secondary: #f3bd73;
    --md-sys-color-on-secondary: #432c05;
    --md-sys-color-secondary-container: #5d420f;
    --md-sys-color-on-secondary-container: #ffdea9;
    --md-sys-color-tertiary: #ffca7b;
    --md-sys-color-surface: #17120b;
    --md-sys-color-surface-dim: #110d07;
    --md-sys-color-surface-bright: #3b342d;
    --md-sys-color-surface-container-low: #211a12;
    --md-sys-color-surface-container: #281f16;
    --md-sys-color-surface-container-high: #31261c;
    --md-sys-color-surface-container-highest: #3d3024;
    --md-sys-color-on-surface: #f2e7d7;
    --md-sys-color-on-surface-variant: #d7c3a7;
    --md-sys-color-outline: #8c7a64;
    --md-sys-color-outline-variant: #4b3d2f;
    --md-sys-color-error: #ffb4ab;
    --md-sys-color-on-error: #690005;
    --md-sys-color-error-container: #93000a;
    --md-sys-color-on-error-container: #ffdad6;
    --ks-success: #80d995;
    --ks-success-hover: #96e3a7;
    --ks-success-text: #072a12;
    --md-sys-shape-corner-extra-small: 12px;
    --md-sys-shape-corner-small: 16px;
    --md-sys-shape-corner-medium: 20px;
    --md-sys-shape-corner-large: 28px;
    --md-sys-shape-corner-full: 999px;
    --ks-bg-deep: #120e08;
    --ks-bg-surface: var(--md-sys-color-surface-container);
    --ks-bg-elevated: var(--md-sys-color-surface-container-high);
    --ks-border: var(--md-sys-color-outline-variant);
    --ks-border-subtle: #2c2218;
    --ks-text-primary: var(--md-sys-color-on-surface);
    --ks-text-secondary: var(--md-sys-color-on-surface-variant);
    --ks-text-muted: #a88f72;
    --ks-accent: var(--md-sys-color-primary);
    --ks-accent-dim: rgba(255, 185, 92, 0.18);
    --ks-accent-hover: #ffd28d;
    --ks-red: #ffb4ab;
    --ks-red-dim: rgba(255, 180, 171, 0.16);
    --ks-sidebar-width: 28%;
    --ks-player-height: 78px;
}

* { box-sizing: border-box; }

body {
    font-family: var(--md-ref-typeface-plain);
    background:
        radial-gradient(circle at top left, rgba(255, 185, 92, 0.14), transparent 26%),
        radial-gradient(circle at top right, rgba(243, 189, 115, 0.1), transparent 24%),
        linear-gradient(180deg, #1a140d 0%, #120e08 42%, #0f0b06 100%);
    color: var(--ks-text-primary);
    padding-bottom: calc(var(--ks-player-height) + 12px);
    margin: 0;
}

h1, h2, h3 {
    font-family: 'Literata', Georgia, serif;
    font-weight: 400;
    letter-spacing: -0.01em;
}

md-filled-button,
md-outlined-button,
md-filled-tonal-button,
md-filled-icon-button,
md-filled-tonal-icon-button,
md-outlined-icon-button {
    --md-sys-shape-corner-full: 999px;
}

md-filled-button,
md-filled-icon-button {
    --md-filled-button-container-color: var(--md-sys-color-primary);
    --md-filled-button-label-text-color: var(--md-sys-color-on-primary);
    --md-filled-icon-button-container-color: var(--md-sys-color-primary);
    --md-filled-icon-button-icon-color: var(--md-sys-color-on-primary);
}

md-filled-tonal-button,
md-filled-tonal-icon-button {
    --md-filled-tonal-button-container-color: var(--md-sys-color-secondary-container);
    --md-filled-tonal-button-label-text-color: var(--md-sys-color-secondary);
    --md-filled-tonal-icon-button-container-color: var(--md-sys-color-surface-container-highest);
    --md-filled-tonal-icon-button-icon-color: var(--md-sys-color-primary);
}

md-outlined-button,
md-outlined-icon-button {
    --md-outlined-button-outline-color: var(--md-sys-color-outline);
    --md-outlined-button-label-text-color: var(--md-sys-color-on-surface);
}

md-primary-tab {
    --md-primary-tab-container-color: transparent;
    --md-primary-tab-active-indicator-color: var(--md-sys-color-primary);
    --md-primary-tab-active-label-text-color: var(--md-sys-color-primary);
    --md-primary-tab-label-text-color: var(--md-sys-color-on-surface-variant);
}

md-menu.ks-material-menu {
    --md-menu-container-color: var(--md-sys-color-surface-container-high);
    --md-menu-item-label-text-color: var(--md-sys-color-on-surface);
    --md-menu-item-selected-container-color: rgba(255, 185, 92, 0.14);
}

.ks-header {
    position: sticky;
    top: 0;
    z-index: 120;
    padding: 1.15rem 1.5rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    margin-bottom: 1.25rem;
    background: rgba(23, 18, 11, 0.86);
    backdrop-filter: blur(18px);
}

.ks-header-row {
    display: flex;
    align-items: center;
    gap: 1.15rem;
    margin-bottom: 1rem;
}

.ks-header h1 {
    font-size: 2rem;
    margin: 0;
    color: var(--ks-accent);
    font-weight: 500;
    letter-spacing: 0.08em;
}

.ks-masthead {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
    min-width: 0;
    flex: 1 1 auto;
}

.ks-masthead-overline {
    color: var(--ks-text-muted);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.ks-masthead-dedication {
    margin: 0;
    color: var(--ks-text-secondary);
    font-size: 0.95rem;
}

.ks-masthead-name {
    color: #ffe0b2;
}

.ks-search-shell {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 0.75rem;
    max-width: 32rem;
    padding: 0 1rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(255, 255, 255, 0.04);
    border-radius: 999px;
}

.ks-search-shell .material-symbols-outlined {
    color: var(--ks-accent);
    font-size: 1.2rem;
}

.ks-search-input {
    border: none;
    background: transparent;
    padding: 0.9rem 0;
    box-shadow: none;
    border-radius: 0;
    outline: none;
}

.ks-search-input:focus {
    border: none;
    background: transparent;
    box-shadow: none;
}

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

.ks-mobile-nav {
    display: none;
    position: relative;
    flex: 0 0 auto;
}

.ks-mobile-nav-trigger {
    flex-shrink: 0;
}

.ks-section-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ks-section-tabs {
    min-width: 16rem;
}

.ks-section-nav-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.ks-section-tab {
    border: none;
    background: transparent;
    color: var(--ks-text-secondary);
    font: inherit;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    cursor: pointer;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    transition: background 0.15s, color 0.15s;
}

.ks-section-tab:hover {
    color: var(--ks-text-primary);
}

.ks-section-tab.is-active {
    background: var(--ks-accent-dim);
    color: var(--ks-accent-hover);
}

.ks-section-add {
    flex-shrink: 0;
}

.ks-header-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    flex: 0 0 auto;
}

.ks-menu-trigger {
    flex-shrink: 0;
}

.ks-menu-dropdown {
    position: absolute;
    top: calc(100% + 0.6rem);
    right: 0;
    min-width: 12.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.28rem;
    padding: 0.4rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1rem;
    background: linear-gradient(180deg, rgba(49, 38, 28, 0.98), rgba(33, 26, 18, 0.98));
    box-shadow: 0 20px 44px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(18px);
    z-index: 180;
}

.ks-mobile-nav .ks-menu-dropdown {
    left: 0;
    right: auto;
}

.ks-menu-item {
    display: flex;
    align-items: center;
    width: 100%;
    border: none;
    border-radius: 0.8rem;
    background: transparent;
    color: var(--ks-text-primary);
    padding: 0.72rem 0.85rem;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

.ks-menu-item:hover {
    background: rgba(255, 185, 92, 0.14);
    color: var(--ks-accent-hover);
}

.ks-menu-item:active {
    transform: scale(0.99);
}

.ks-menu-item[aria-current="true"] {
    background: var(--ks-accent-dim);
    color: var(--ks-accent-hover);
}

.ks-menu-divider {
    margin: 0.5rem 0.25rem;
    border: none;
    height: 1px;
    background: rgba(255, 255, 255, 0.16);
}

.ks-material-menu {
    position: absolute;
    z-index: 150;
}

.ks-surface-card {
    position: relative;
    overflow: hidden;
}

.ks-surface-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
    pointer-events: none;
}

.ks-table-wrap {
    padding: 0 2rem;
    overflow-x: auto;
}

.ks-lessons-wrap {
    padding: 0 2rem 1rem;
    display: grid;
    gap: 0.9rem;
}

.ks-page-toolbar {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
    margin: 0 0 1rem;
}

.ks-page-copy {
    display: flex;
    flex-direction: column;
    gap: 0.18rem;
}

.ks-page-overline {
    color: var(--ks-text-muted);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.ks-page-title {
    margin: 0;
    color: var(--ks-text-primary);
}

.ks-page-action-button {
    flex-shrink: 0;
}

.ks-lesson-card {
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: linear-gradient(180deg, rgba(61, 48, 36, 0.88), rgba(40, 31, 22, 0.94));
    border-radius: 1.25rem;
    padding: 1rem 1.1rem;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.2);
}

.ks-lesson-card-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.85rem;
}

.ks-lesson-card-title {
    margin: 0;
    font-size: 1.2rem;
}

.ks-lesson-card-dances {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.ks-lesson-dance-pill {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0.2rem;
    min-width: 12rem;
    padding: 0.25rem;
    text-align: left;
    --md-outlined-button-container-shape: 20px;
    --md-outlined-button-label-text-color: var(--ks-text-primary);
    --md-outlined-button-outline-color: rgba(255, 255, 255, 0.12);
}

.ks-lesson-dance-pill span {
    display: block;
}

.ks-lesson-dance-region {
    color: var(--ks-text-secondary);
    font-size: 0.78rem;
}

.ks-empty-state {
    border: 1px dashed var(--ks-border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--ks-text-secondary);
    border-radius: 1.25rem;
    padding: 1.1rem;
}

table[data-testid="dance-table"] {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    border-radius: 1.5rem;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(61, 48, 36, 0.72), rgba(40, 31, 22, 0.88));
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.18);
}

table[data-testid="dance-table"] thead th {
    cursor: pointer;
    user-select: none;
    font-family: var(--md-ref-typeface-plain);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ks-text-secondary);
    padding: 0.75rem 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    text-align: left;
    white-space: nowrap;
    background: rgba(0, 0, 0, 0.08);
}

table[data-testid="dance-table"] thead th:hover {
    color: var(--ks-text-secondary);
}

table[data-testid="dance-table"] tbody tr {
    cursor: pointer;
    transition: background 0.15s;
}

table[data-testid="dance-table"] tbody tr:hover {
    background: rgba(255, 185, 92, 0.08);
}

table[data-testid="dance-table"] tbody td {
    padding: 0.75rem 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--ks-text-primary);
    vertical-align: middle;
}

table[data-testid="dance-table"] tbody td:nth-child(3),
table[data-testid="dance-table"] tbody td:nth-child(4) {
    color: var(--ks-text-secondary);
    font-variant-numeric: tabular-nums;
}

/* Compact button base */
.ks-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    color: var(--ks-text-secondary);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.75rem;
    line-height: 1;
    height: 24px;
    min-width: 0;
    width: auto;
    margin: 0;
    transition: color 0.15s, background 0.15s;
}

.ks-btn:hover {
    color: var(--ks-text-primary);
    background: var(--ks-bg-elevated);
}

.ks-btn--accent {
    color: var(--ks-accent);
}

.ks-btn--accent:hover {
    color: var(--ks-accent-hover);
    background: var(--ks-accent-dim);
}

.ks-btn--danger {
    color: var(--ks-red);
}

.ks-btn--danger:hover {
    background: var(--ks-red-dim);
}

.ks-btn--small {
    font-size: 0.65rem;
    height: 20px;
    padding: 1px 5px;
}

/* Shared sidebar backdrop + panel */
.ks-sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    pointer-events: auto;
    cursor: pointer;
}

.ks-sidebar-panel {
    position: fixed;
    top: 0;
    right: 0;
    height: 100%;
    width: var(--ks-sidebar-width);
    background: linear-gradient(180deg, rgba(49, 38, 28, 0.98), rgba(33, 26, 18, 0.98));
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    overflow-y: auto;
    padding: 1.25rem 1.5rem 5rem;
    box-shadow: -24px 0 50px rgba(0, 0, 0, 0.24);
}

[data-testid="dance-detail-backdrop"] { z-index: 200; }
[data-testid="dance-detail"] {
    z-index: 202;
    transform: translateX(0);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-testid="lesson-sidebar-backdrop"] { z-index: 210; }
[data-testid="lesson-sidebar"] { z-index: 211; }

[data-testid="dance-create-backdrop"] { z-index: 212; }
[data-testid="dance-create-sidebar"] { z-index: 213; }

[data-testid="user-settings-sidebar-backdrop"] { z-index: 197; }
[data-testid="user-settings-sidebar"] { z-index: 198; }

.ks-fade-in { transition: opacity 0.3s ease; }
.ks-fade-out { transition: opacity 0.2s ease; }
.ks-fade-from { opacity: 0; }
.ks-fade-to { opacity: 1; }

/* User settings panel overrides */
.ks-user-settings-panel {
    border-left: 1px solid var(--ks-accent-dim);
}

/* Accordion user items */
.ks-user-item {
    border-left: 2px solid var(--ks-border);
    border-radius: 0 4px 4px 0;
    background: var(--ks-bg-elevated);
    margin-bottom: 0.4rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.ks-user-item:hover {
    border-left-color: var(--ks-accent);
}

.ks-user-item--register {
    border-left-color: var(--ks-accent);
    border-left-style: dashed;
}

.ks-user-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.75rem;
    cursor: pointer;
    user-select: none;
}

.ks-user-header:hover {
    background: rgba(255, 255, 255, 0.02);
}

.ks-user-name {
    font-size: 0.85rem;
    font-weight: 500;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ks-role-pill {
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 700;
    font-family: 'Noto Sans', sans-serif;
    flex-shrink: 0;
}

.ks-role--admin {
    background: var(--ks-accent-dim);
    color: var(--ks-accent);
}

.ks-role--editor {
    background: rgba(76, 168, 201, 0.15);
    color: #4ca8c9;
}

.ks-role--user {
    background: rgba(139, 138, 133, 0.12);
    color: var(--ks-text-secondary);
}

.ks-user-chevron {
    font-size: 1.1rem;
    color: var(--ks-text-muted);
    transition: transform 0.25s ease;
    display: inline-block;
    flex-shrink: 0;
    line-height: 1;
}

.ks-user-chevron.is-open {
    transform: rotate(90deg);
}

.ks-user-fields {
    display: grid;
    grid-template-columns: 1fr 110px;
    gap: 0.35rem;
    padding: 0 0.75rem 0.65rem;
    align-items: center;
}

.ks-user-fields-span {
    grid-column: 1 / -1;
}

.ks-select-compact {
    width: 100%;
    min-width: 0;
}

.ks-user-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.15rem;
}

.ks-btn--full {
    width: 100%;
    height: auto;
    padding: 0.4rem 1rem;
}

/* Feedback messages */
.ks-user-feedback {
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    white-space: nowrap;
}

.ks-user-feedback.is-success {
    color: #6ab56a;
    background: rgba(106, 181, 106, 0.1);
}

.ks-user-feedback.is-error {
    color: var(--ks-red);
    background: var(--ks-red-dim);
}

/* Change password section */
.ks-change-pw {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--ks-border-subtle);
}

.ks-change-pw-fields {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-top: 0.4rem;
}

@media (max-width: 768px) {
    .ks-sidebar-panel {
        width: 100%;
    }
    .ks-user-settings-panel .ks-input {
        min-height: 44px;
    }
    .ks-header {
        padding: 1rem 1rem 0.85rem;
    }

    .ks-header-row {
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 0.85rem;
    }

    .ks-mobile-nav {
        display: block;
    }

    .ks-section-nav--desktop {
        display: none;
    }

    .ks-header-menu {
        display: none;
    }

    .ks-table-wrap,
    .ks-lessons-wrap {
        padding: 0 1rem;
    }

    .ks-search-shell {
        max-width: none;
    }

    .ks-lesson-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.35rem;
    }

    .ks-lesson-dance-pill {
        width: 100%;
        min-width: 0;
    }
}

.ks-sidebar-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.ks-sidebar-close {
    flex-shrink: 0;
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
}

.ks-sidebar-fields {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

/* Shared input base */
.ks-input {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--ks-text-primary);
    border-radius: 18px;
    padding: 0.8rem 0.95rem;
    font-size: 0.92rem;
    width: 100%;
    margin: 0;
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.ks-input:focus {
    border-color: rgba(255, 185, 92, 0.9);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 0 4px rgba(255, 185, 92, 0.14);
}

.ks-sidebar-fields .ks-input {
    font-family: 'Literata', Georgia, serif;
}

.ks-section-title {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ks-text-muted);
    margin: 1rem 0 0.4rem;
    font-family: var(--md-ref-typeface-plain);
    font-weight: 600;
}

.ks-action-button,
.ks-inline-button,
.ks-inline-icon-button {
    flex-shrink: 0;
}

.ks-material-button {
    border: none;
    border-radius: 999px;
    padding: 0.82rem 1.2rem;
    font: inherit;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, color 0.16s ease, opacity 0.16s ease;
}

.ks-material-button:hover:not(:disabled) {
    transform: translateY(-1px);
}

.ks-material-button:disabled {
    opacity: 0.42;
    cursor: not-allowed;
}

.ks-material-button--filled {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    box-shadow: 0 10px 24px rgba(255, 185, 92, 0.16);
}

.ks-material-button--success {
    background: var(--ks-success);
    color: var(--ks-success-text);
    box-shadow: 0 10px 24px rgba(128, 217, 149, 0.18);
}

.ks-material-button--success:hover:not(:disabled) {
    background: var(--ks-success-hover);
}

.ks-material-button--outlined {
    background: transparent;
    color: var(--ks-text-primary);
    border: 1px solid var(--md-sys-color-outline);
}

.ks-material-button--danger {
    background: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
    box-shadow: 0 10px 24px rgba(147, 0, 10, 0.22);
}

.ks-material-icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border: none;
    border-radius: 999px;
    font: inherit;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    flex-shrink: 0;
    transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, color 0.16s ease, opacity 0.16s ease;
}

.ks-material-icon-button:hover:not(:disabled) {
    transform: translateY(-1px);
}

.ks-material-icon-button:disabled {
    opacity: 0.42;
    cursor: not-allowed;
}

.ks-material-icon-button--filled {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    box-shadow: 0 10px 24px rgba(255, 185, 92, 0.16);
}

.ks-material-icon-button--tonal {
    background: var(--md-sys-color-surface-container-highest);
    color: var(--md-sys-color-primary);
}

.ks-material-icon-button--danger {
    background: rgba(255, 180, 171, 0.14);
    color: var(--md-sys-color-error);
}

.ks-material-icon-button--success {
    background: var(--ks-success);
    color: var(--ks-success-text);
    box-shadow: 0 10px 24px rgba(128, 217, 149, 0.18);
}

.ks-material-icon-button--success:hover:not(:disabled) {
    background: var(--ks-success-hover);
}

.ks-action-button--danger {
    --md-filled-button-container-color: var(--md-sys-color-error-container);
    --md-filled-button-label-text-color: var(--md-sys-color-on-error-container);
    --md-outlined-button-outline-color: rgba(255, 180, 171, 0.4);
    --md-outlined-button-label-text-color: var(--md-sys-color-error);
}

.ks-detail-actions {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.ks-inline-button {
    --md-outlined-button-container-shape: 16px;
    --md-outlined-button-label-text-size: 0.8rem;
}

.ks-inline-icon-button.ks-material-icon-button {
    width: 2rem;
    height: 2rem;
    font-size: 0.82rem;
}

.ks-inline-icon-button--danger {
    --md-filled-tonal-icon-button-container-color: rgba(255, 180, 171, 0.14);
    --md-filled-tonal-icon-button-icon-color: var(--md-sys-color-error);
}

.ks-yt-list {
    list-style: none;
    padding: 0;
    margin: 0 0 0.5rem;
}

.ks-yt-list li {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0;
    border-bottom: 1px solid var(--ks-border-subtle);
    flex-wrap: wrap;
}

.ks-yt-list li a {
    color: var(--ks-accent);
    text-decoration: none;
    font-size: 0.8rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.ks-yt-list li a:hover {
    color: var(--ks-accent-hover);
    text-decoration: underline;
}

.ks-yt-add {
    display: flex;
    gap: 0.4rem;
    margin-top: 0.4rem;
}

.ks-yt-add .ks-input {
    padding: 0.3rem 0.5rem;
    font-size: 0.78rem;
    flex: 1;
    width: auto;
}

.ks-move-search {
    width: 100%;
    margin-top: 0.25rem;
}

.ks-move-search .ks-input {
    padding: 0.3rem 0.5rem;
    font-size: 0.78rem;
}

.ks-move-results {
    list-style: none;
    padding: 0;
    margin: 0.25rem 0 0;
    background: var(--ks-bg-elevated);
    border: 1px solid var(--ks-border);
    border-radius: 3px;
    max-height: 140px;
    overflow-y: auto;
}

.ks-move-results li {
    padding: 0.35rem 0.5rem;
    font-size: 0.78rem;
    cursor: pointer;
    border-bottom: 1px solid var(--ks-border-subtle);
}

.ks-move-results li:last-child {
    border-bottom: none;
}

.ks-move-results li:hover {
    background: var(--ks-accent-dim);
    color: var(--ks-accent);
}

.ks-track-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ks-track-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0;
    border-bottom: 1px solid var(--ks-border-subtle);
    font-size: 0.8rem;
    flex-wrap: wrap;
}

.ks-track-list .ks-track-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ks-track-list .ks-track-artist {
    color: var(--ks-text-secondary);
}

.ks-track-list .ks-track-dur {
    color: var(--ks-text-muted);
    font-size: 0.72rem;
    font-variant-numeric: tabular-nums;
}

.ks-lesson-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ks-lesson-list li {
    padding: 0.2rem 0;
    font-size: 0.8rem;
    color: var(--ks-text-secondary);
    font-variant-numeric: tabular-nums;
}

/* Audio player */
[data-testid="audio-player"] {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--ks-player-height);
    background: linear-gradient(180deg, rgba(49, 38, 28, 0.96), rgba(33, 26, 18, 0.98));
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0 1.25rem 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 300;
    backdrop-filter: blur(16px);
    overflow: hidden;
    isolation: isolate;
}

[data-testid="audio-player"]::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(49, 38, 28, 0.7), rgba(33, 26, 18, 0.8)),
        url("https://external-content.duckduckgo.com/iu/?u=http%3A%2F%2Fsports.teilar.gr%2Fwp-content%2Fuploads%2F2014%2F10%2Fparadosiakoi.jpg&f=1&nofb=1&ipt=508bb9a6b369bd353554181e4ae265f58444acc2bad81adcea611b05d3d5e334");
    background-size: cover;
    background-position: center;
    opacity: 0.3;
    pointer-events: none;
    z-index: -1;
}

[data-testid="audio-player"] .ks-player-row-time,
[data-testid="audio-player"] .ks-player-row-info,
[data-testid="audio-player"] .ks-player-row-controls,
[data-testid="audio-player"] .ks-player-controls-left,
[data-testid="audio-player"] .ks-player-controls-center,
[data-testid="audio-player"] .ks-player-controls-right {
    display: contents;
}

[data-testid="audio-player"] [data-testid="player-prev"] { order: 1; }
[data-testid="audio-player"] [data-testid="player-play-pause"] { order: 2; }
[data-testid="audio-player"] [data-testid="player-next"] { order: 3; }
[data-testid="audio-player"] [data-testid="player-dance-info"] { order: 4; }
[data-testid="audio-player"] [data-testid="player-track-info"] { order: 5; }
[data-testid="audio-player"] [data-testid="switch-song-button"] { order: 5; }
[data-testid="audio-player"] [data-testid="player-time-elapsed"] { order: 6; }
[data-testid="audio-player"] [data-testid="player-progress"] { order: 7; }
[data-testid="audio-player"] [data-testid="player-time-total"] { order: 8; }
[data-testid="audio-player"] [data-testid="shuffle-mode-button"] { order: 9; }
[data-testid="audio-player"] [data-testid="shuffle-config-button"] { order: 10; }
[data-testid="audio-player"] [data-testid="wake-lock-unavailable"] { order: 11; }

.ks-player-time {
    font-size: 0.75rem;
    color: var(--ks-text-secondary);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    flex-shrink: 0;
}

[data-testid="audio-player"] md-filled-tonal-icon-button,
[data-testid="audio-player"] md-filled-icon-button {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
}

/* Responsive transport control sizing (Issue #98).
   prev/next use md-filled-tonal-icon-button; play/pause uses .ks-material-icon-button. */
[data-testid="audio-player"] [data-testid="player-prev"],
[data-testid="audio-player"] [data-testid="player-next"] {
    width: 40px;
    height: 40px;
}

[data-testid="audio-player"] [data-testid="player-play-pause"].ks-material-icon-button {
    width: 48px;
    height: 48px;
}

@media (min-width: 360px) {
    [data-testid="audio-player"] [data-testid="player-prev"],
    [data-testid="audio-player"] [data-testid="player-next"] {
        width: 48px;
        height: 48px;
    }
    [data-testid="audio-player"] [data-testid="player-play-pause"].ks-material-icon-button {
        width: 56px;
        height: 56px;
    }
}

@media (min-width: 480px) {
    [data-testid="audio-player"] [data-testid="player-prev"],
    [data-testid="audio-player"] [data-testid="player-next"] {
        width: 56px;
        height: 56px;
    }
    [data-testid="audio-player"] [data-testid="player-play-pause"].ks-material-icon-button {
        width: 64px;
        height: 64px;
    }
}

[data-testid="player-progress"] {
    flex: 1;
    min-width: 60px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--ks-border);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
    margin: 0;
}

[data-testid="player-progress"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--ks-accent);
    cursor: pointer;
}

.ks-player-switch-song {
    flex-shrink: 0;
    --md-filled-tonal-icon-button-container-color: rgba(255, 255, 255, 0.06);
}

[data-testid="audio-player"] [data-testid="shuffle-mode-button"] {
    flex-shrink: 0;
}

.ks-player-control-button {
    --md-filled-tonal-icon-button-container-color: rgba(255, 255, 255, 0.06);
}

.ks-player-control-button--toggle.active {
    --md-filled-tonal-icon-button-container-color: var(--md-sys-color-primary);
    --md-filled-tonal-icon-button-icon-color: var(--md-sys-color-on-primary);
}

.ks-player-control-button.ks-material-icon-button {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--ks-text-primary);
    font-size: 0.9rem;
}

.ks-player-control-button--primary {
    --md-filled-icon-button-container-color: var(--md-sys-color-primary);
    --md-filled-icon-button-icon-color: var(--md-sys-color-on-primary);
}

.ks-player-control-button--primary.ks-material-icon-button {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
}

[data-testid="player-dance-info"],
[data-testid="player-track-info"] {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
    flex: 0 1 auto;
    max-width: 220px;
    gap: 1px;
}

[data-testid="player-dance-info"] .ks-player-label {
    font-family: 'Literata', Georgia, serif;
    color: var(--ks-accent);
}

[data-testid="player-track-info"] {
    padding-left: 0.75rem;
    border-left: 1px solid var(--ks-border-subtle);
}

.ks-player-label {
    font-size: 0.88rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
}

.ks-player-sublabel {
    font-size: 0.6rem;
    color: var(--ks-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

[x-cloak] { display: none !important; }

.ks-login-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1.5rem;
    background:
        radial-gradient(circle at 20% 15%, rgba(255, 185, 92, 0.2), transparent 24%),
        linear-gradient(180deg, #1a140d 0%, #100b06 100%);
}

.ks-login-form {
    background: linear-gradient(180deg, rgba(49, 38, 28, 0.96), rgba(33, 26, 18, 0.96));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 28px;
    padding: 2rem;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 28px 60px rgba(0, 0, 0, 0.32);
}

.ks-login-eyebrow {
    display: inline-flex;
    margin-bottom: 0.65rem;
    color: var(--ks-text-muted);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.ks-login-form h2 {
    color: var(--ks-accent);
    margin: 0 0 1.35rem;
    text-align: left;
}

.ks-login-form input[type="text"],
.ks-login-form input[type="password"] {
    margin-bottom: 0.85rem;
}

.ks-login-form input:focus {
    border-color: var(--ks-accent);
}

.ks-login-form input.error {
    border-color: var(--ks-red);
}

.ks-login-form md-filled-button {
    width: 100%;
    margin-top: 0.35rem;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-8px); }
    40% { transform: translateX(8px); }
    60% { transform: translateX(-6px); }
    80% { transform: translateX(6px); }
}

.shake {
    animation: shake 0.4s ease;
}

.ks-header-row h1 {
    margin: 0;
}

.ks-masthead-dedication {
    font-family: 'Literata', Georgia, serif;
    font-style: italic;
    font-weight: 300;
    font-size: 0.78rem;
    line-height: 1.45;
    letter-spacing: 0.015em;
    color: var(--ks-text-muted);
    position: relative;
    padding-left: 1.75rem;
    max-width: 38rem;
    animation: ks-dedication-rise 900ms ease-out 120ms both;
}

.ks-masthead-dedication::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.68em;
    width: 1.15rem;
    height: 1px;
    background: linear-gradient(
        90deg,
        var(--ks-accent) 0%,
        var(--ks-accent) 55%,
        rgba(201, 168, 76, 0) 100%
    );
    opacity: 0.75;
    transform-origin: left center;
    animation: ks-dedication-rule 700ms ease-out 200ms both;
}

.ks-masthead-name {
    color: var(--ks-text-secondary);
    font-style: italic;
    white-space: normal;
}

@keyframes ks-dedication-rise {
    from {
        opacity: 0;
        transform: translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes ks-dedication-rule {
    from {
        transform: scaleX(0);
        opacity: 0;
    }
    to {
        transform: scaleX(1);
        opacity: 0.75;
    }
}

@media (max-width: 640px) {
    .ks-masthead-dedication {
        font-size: 0.72rem;
        padding-left: 1.4rem;
        line-height: 1.5;
    }
    .ks-masthead-dedication::before {
        width: 0.9rem;
        top: 0.72em;
    }
    .ks-masthead { gap: 0.3rem; }
}

@media (prefers-reduced-motion: reduce) {
    .ks-masthead-dedication,
    .ks-masthead-dedication::before {
        animation: none;
    }
}

.ks-register-error {
    color: var(--ks-red);
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.ks-lesson-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.ks-field-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ks-text-muted);
    display: block;
    margin: 0;
    font-family: 'Noto Sans', sans-serif;
    font-weight: 600;
}

.ks-lesson-form .ks-field-label {
    margin-top: 0.5rem;
}


.ks-lesson-search-wrap {
    position: relative;
}

.ks-lesson-new-dance {
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

.ks-lesson-new-dance input {
    flex: 1;
}

.ks-lesson-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    min-height: 1.5rem;
    margin: 0.25rem 0;
}

.ks-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--ks-accent-dim);
    color: var(--ks-accent);
    border-radius: 3px;
    padding: 0.2rem 0.45rem;
    font-size: 0.75rem;
}

.ks-chip-remove {
    background: none;
    border: none;
    color: var(--ks-text-secondary);
    cursor: pointer;
    padding: 0 2px;
    font-size: 0.8rem;
    line-height: 1;
}

.ks-chip-remove:hover {
    color: var(--ks-red);
}

.ks-lesson-save {
    margin-top: 0.75rem;
    padding: 0.45rem 1rem;
    width: 100%;
    height: auto;
}

.ks-lesson-save:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.ks-toast {
    position: fixed;
    bottom: calc(var(--ks-player-height) + 16px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--ks-accent);
    color: var(--ks-bg-deep);
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 500;
}

.ks-link-error {
    color: var(--ks-red);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.ks-delete-dance {
    margin-top: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

/* Shuffle config modal */
.ks-shuffle-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 400;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ks-shuffle-modal {
    background: var(--ks-bg-surface);
    border: 1px solid var(--ks-border);
    border-radius: 6px;
    padding: 1.5rem;
    width: 100%;
    max-width: 340px;
}

.ks-shuffle-modal h3 {
    font-size: 1rem;
    color: var(--ks-accent);
    margin: 0 0 1rem;
}

.ks-shuffle-section {
    margin-bottom: 0.75rem;
}

.ks-shuffle-section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 0.35rem;
}

.ks-shuffle-quick-actions {
    display: flex;
    gap: 0.25rem;
}

.ks-shuffle-quick-actions .ks-btn {
    color: var(--ks-text-muted);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ks-shuffle-section .ks-input {
    padding: 0.45rem 0.65rem;
    font-size: 0.85rem;
}

.ks-shuffle-lessons-row {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.ks-shuffle-lessons-field {
    flex: 1;
}

.ks-shuffle-lessons-field .ks-field-label {
    margin-bottom: 0.35rem;
}

.ks-shuffle-lessons-field .ks-input {
    padding: 0.45rem 0.65rem;
    font-size: 0.85rem;
}

.ks-shuffle-confirm {
    display: block;
    width: 100%;
    height: auto;
    padding: 0.45rem 1rem;
    margin-top: 0.5rem;
}

[data-testid="shuffle-config-button"] {
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .ks-page-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .ks-page-action-button {
        width: 100%;
    }

    .ks-shuffle-modal {
        max-width: 100%;
        margin: 0 1rem;
    }

    /* Mobile player: 4 stacked rows (progress / time / info / controls) */
    [data-testid="audio-player"] {
        flex-direction: column;
        align-items: stretch;
        height: auto;
        padding: 0;
        gap: 0;
    }

    [data-testid="audio-player"] .ks-player-row-time,
    [data-testid="audio-player"] .ks-player-row-info,
    [data-testid="audio-player"] .ks-player-row-controls,
    [data-testid="audio-player"] .ks-player-controls-left,
    [data-testid="audio-player"] .ks-player-controls-center,
    [data-testid="audio-player"] .ks-player-controls-right {
        display: flex;
    }

    [data-testid="audio-player"] [data-testid="player-prev"],
    [data-testid="audio-player"] [data-testid="player-play-pause"],
    [data-testid="audio-player"] [data-testid="player-next"],
    [data-testid="audio-player"] [data-testid="player-dance-info"],
    [data-testid="audio-player"] [data-testid="player-track-info"],
    [data-testid="audio-player"] [data-testid="switch-song-button"],
    [data-testid="audio-player"] [data-testid="player-time-elapsed"],
    [data-testid="audio-player"] [data-testid="player-progress"],
    [data-testid="audio-player"] [data-testid="player-time-total"],
    [data-testid="audio-player"] [data-testid="shuffle-mode-button"],
    [data-testid="audio-player"] [data-testid="shuffle-config-button"],
    [data-testid="audio-player"] [data-testid="wake-lock-unavailable"] {
        order: 0;
    }

    [data-testid="audio-player"] .ks-player-row-time {
        order: 2;
        justify-content: space-between;
        padding: 0.1rem 0.75rem 0;
    }

    [data-testid="player-progress"] {
        order: 1;
        width: 100%;
        flex: 0 0 auto;
        height: 36px;
        background: transparent;
        padding: 0;
        margin: 0;
    }

    [data-testid="player-progress"]::-webkit-slider-runnable-track {
        height: 4px;
        background: var(--ks-border);
        border-radius: 2px;
    }

    [data-testid="player-progress"]::-moz-range-track {
        height: 4px;
        background: var(--ks-border);
        border-radius: 2px;
    }

    [data-testid="player-progress"]::-webkit-slider-thumb {
        -webkit-appearance: none;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background: var(--ks-accent);
        margin-top: -8px;
    }

    [data-testid="player-progress"]::-moz-range-thumb {
        width: 20px;
        height: 20px;
        border-radius: 50%;
        background: var(--ks-accent);
        border: none;
    }

    [data-testid="audio-player"] .ks-player-row-info {
        order: 3;
        align-items: center;
        padding: 0.35rem 0.75rem;
        gap: 0.5rem;
        width: 100%;
    }

    [data-testid="audio-player"] [data-testid="player-dance-info"],
    [data-testid="audio-player"] [data-testid="player-track-info"] {
        flex: 1 1 45%;
        max-width: none;
        min-width: 0;
    }

    [data-testid="audio-player"] [data-testid="player-track-info"] {
        padding-left: 0.5rem;
    }

    [data-testid="audio-player"] .ks-player-row-controls {
        order: 4;
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
        padding: 0.4rem 0.75rem 0.6rem;
        gap: 0.5rem;
    }

    [data-testid="audio-player"] .ks-player-controls-left {
        justify-content: flex-start;
        align-items: center;
    }

    [data-testid="audio-player"] .ks-player-controls-center {
        justify-content: center;
        align-items: center;
        gap: 0.4rem;
    }

    [data-testid="audio-player"] .ks-player-controls-right {
        justify-content: flex-end;
        align-items: center;
        gap: 0.4rem;
    }

    body {
        padding-bottom: 10rem;
    }
}

/* Utilities extracted from inline style= attributes so CSP can drop
   'unsafe-inline' from style-src. */
.ks-text-meta {
    font-size: 0.85rem;
    color: var(--ks-text-secondary);
}

.ks-row-inline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ks-btn--row-play {
    height: 24px;
    padding: 2px 8px;
    min-width: 0;
}

.ks-sidebar-title {
    font-size: 1.1rem;
    margin: 0 0 0.15rem;
}

.ks-sidebar-subtitle {
    font-size: 0.85rem;
    color: var(--ks-text-secondary);
    margin: 0 0 1rem;
}

.ks-sidebar-header-title {
    font-size: 1.1rem;
    margin: 0;
}

.ks-section-title--spaced {
    margin-top: 1.25rem;
}