/* Design tokens */
:root {
    color-scheme: dark;

    --color-canvas: #0b0d14;
    --color-canvas-raised: #10131d;
    --color-surface: #151925;
    --color-surface-raised: #1a1f2d;
    --color-surface-soft: #121620;
    --color-border: rgba(212, 216, 235, 0.11);
    --color-border-strong: rgba(212, 216, 235, 0.2);
    --color-text: #f4f3f8;
    --color-text-secondary: #aaaabd;
    --color-text-tertiary: #7c7d91;
    --color-purple: #a78bfa;
    --color-purple-soft: rgba(167, 139, 250, 0.13);
    --color-pink: #e8a2c4;
    --color-pink-soft: rgba(232, 162, 196, 0.12);
    --color-success: #9dd5b1;
    --color-success-soft: rgba(94, 177, 126, 0.13);

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    --radius-sm: 0.625rem;
    --radius-md: 0.875rem;
    --radius-lg: 1.25rem;
    --radius-xl: 1.75rem;
    --radius-pill: 999px;

    --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.16);
    --shadow-md: 0 24px 70px rgba(0, 0, 0, 0.25);
    --focus-ring: 0 0 0 3px rgba(167, 139, 250, 0.32);
    --transition: 180ms ease;
    --content-width: 94rem;
}

/* Base */
* {
    box-sizing: border-box;
}

html {
    min-width: 20rem;
    background: var(--color-canvas);
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--color-text);
    background: var(--color-canvas);
    font-family:
        Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
}

a {
    color: inherit;
}

button,
input,
select {
    font: inherit;
}

:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

::selection {
    color: var(--color-text);
    background: rgba(167, 139, 250, 0.35);
}

.app-container {
    width: min(calc(100% - 2rem), var(--content-width));
    margin-inline: auto;
}

.page-content {
    min-height: calc(100vh - 10rem);
    padding-block: clamp(var(--space-10), 6vw, var(--space-20));
}

.skip-link {
    position: fixed;
    z-index: 100;
    top: var(--space-3);
    left: var(--space-3);
    padding: var(--space-2) var(--space-4);
    color: var(--color-canvas);
    text-decoration: none;
    border-radius: var(--radius-sm);
    background: var(--color-text);
    transform: translateY(-180%);
}

.skip-link:focus {
    transform: translateY(0);
}

/* Application shell */
.app-header {
    position: sticky;
    z-index: 50;
    top: 0;
    border-bottom: 1px solid var(--color-border);
    background: rgba(11, 13, 20, 0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.header-inner {
    display: flex;
    min-height: 4.5rem;
    gap: var(--space-8);
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: inline-flex;
    flex: 0 0 auto;
    gap: var(--space-3);
    align-items: center;
    color: var(--color-text);
    font-size: 0.84rem;
    font-weight: 760;
    letter-spacing: 0.2em;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    color: #17121f;
    font-size: 0.84rem;
    font-weight: 850;
    letter-spacing: 0;
    border-radius: 0.65rem;
    background: var(--color-purple);
    box-shadow: 0 8px 24px rgba(167, 139, 250, 0.18);
}

.primary-nav {
    display: flex;
    gap: var(--space-1);
    align-items: center;
    overflow-x: auto;
    scrollbar-width: none;
}

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

.nav-item {
    position: relative;
    flex: 0 0 auto;
    padding: 0.55rem 0.78rem;
    color: var(--color-text-secondary);
    font-size: 0.88rem;
    font-weight: 570;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition:
        color var(--transition),
        background-color var(--transition);
}

a.nav-item:hover,
.nav-item.active {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.055);
}

.nav-item.active::after {
    position: absolute;
    right: 0.75rem;
    bottom: 0.18rem;
    left: 0.75rem;
    height: 1px;
    content: "";
    background: var(--color-purple);
}

.nav-item.unavailable {
    color: var(--color-text-tertiary);
    cursor: default;
}

/* Typography and reusable components */
.eyebrow,
.section-kicker {
    margin: 0 0 var(--space-3);
    color: var(--color-purple);
    font-size: 0.72rem;
    font-weight: 760;
    letter-spacing: 0.18em;
}

.section-kicker {
    margin-bottom: var(--space-1);
    color: var(--color-text-tertiary);
}

.page-subtitle {
    max-width: 42rem;
    margin: var(--space-5) 0 0;
    color: var(--color-text-secondary);
    font-size: clamp(1rem, 1.5vw, 1.16rem);
}

.section-block {
    margin-top: clamp(var(--space-16), 7vw, var(--space-20));
}

.section-heading,
.filter-heading {
    display: flex;
    gap: var(--space-6);
    align-items: end;
    justify-content: space-between;
}

.section-heading {
    margin-bottom: var(--space-6);
}

.section-heading h2,
.filter-heading h2,
.panel-heading h2 {
    margin: 0;
    font-size: clamp(1.2rem, 2vw, 1.55rem);
    font-weight: 690;
    letter-spacing: -0.025em;
}

.section-heading > p {
    margin: 0;
    color: var(--color-text-tertiary);
    font-size: 0.9rem;
}

.primary-button,
.secondary-button {
    display: inline-flex;
    min-height: 2.8rem;
    gap: var(--space-2);
    align-items: center;
    justify-content: center;
    padding: 0.68rem 1rem;
    font-size: 0.88rem;
    font-weight: 680;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition:
        color var(--transition),
        border-color var(--transition),
        background-color var(--transition),
        transform var(--transition);
}

.primary-button {
    color: #17121f;
    background: var(--color-purple);
}

.primary-button:hover {
    color: #17121f;
    background: #b59dfb;
}

.secondary-button {
    color: var(--color-text);
    border-color: var(--color-border-strong);
    background: rgba(255, 255, 255, 0.035);
}

.secondary-button:hover {
    color: var(--color-text);
    border-color: rgba(167, 139, 250, 0.48);
    background: var(--color-purple-soft);
}

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

/* Home */
.home-hero {
    display: grid;
    min-height: min(34rem, 65vh);
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-12);
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}

.home-hero h1,
.page-hero h1,
.detail-title h1 {
    max-width: 58rem;
    margin: 0;
    font-size: clamp(2.65rem, 6.5vw, 6rem);
    font-weight: 720;
    line-height: 1.02;
    letter-spacing: -0.055em;
}

.hero-orbit {
    display: grid;
    width: clamp(9rem, 18vw, 14rem);
    aspect-ratio: 1;
    place-items: center;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    box-shadow:
        inset 0 0 0 2.4rem var(--color-canvas),
        inset 0 0 0 calc(2.4rem + 1px) var(--color-border);
}

.orbit-core {
    display: grid;
    width: 4.5rem;
    aspect-ratio: 1;
    place-items: center;
    color: #17121f;
    font-size: 1.5rem;
    font-weight: 800;
    border-radius: var(--radius-xl);
    background: var(--color-pink);
    box-shadow: 0 20px 60px rgba(232, 162, 196, 0.16);
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-4);
}

.relationship-card {
    display: grid;
    margin-top: var(--space-8);
    padding: clamp(var(--space-6), 4vw, var(--space-10));
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: var(--space-8);
    align-items: center;
    border: 1px solid rgba(232, 162, 196, 0.2);
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.relationship-copy h2 {
    margin: 0;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 710;
    letter-spacing: -0.035em;
}

.relationship-copy > p:last-child {
    margin: var(--space-2) 0 0;
    color: var(--color-text-secondary);
}

.relationship-time {
    margin: 0;
    color: var(--color-text);
    font-size: clamp(1.05rem, 2.2vw, 1.55rem);
    font-variant-numeric: tabular-nums;
    font-weight: 650;
    line-height: 1.8;
    text-align: right;
}

.relationship-time [data-days],
.relationship-time [data-hours],
.relationship-time [data-minutes],
.relationship-time [data-seconds] {
    color: var(--color-pink);
}

.time-separator {
    margin-inline: var(--space-2);
    color: var(--color-text-tertiary);
}

.application-card {
    display: flex;
    min-height: 18rem;
    padding: var(--space-6);
    flex-direction: column;
    justify-content: space-between;
    color: var(--color-text);
    text-decoration: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface-soft);
    box-shadow: var(--shadow-sm);
    transition:
        border-color var(--transition),
        background-color var(--transition),
        transform var(--transition),
        box-shadow var(--transition);
}

a.application-card:hover {
    color: var(--color-text);
    border-color: rgba(167, 139, 250, 0.32);
    background: var(--color-surface);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.application-card.featured {
    grid-column: span 2;
    border-color: rgba(167, 139, 250, 0.22);
    background: var(--color-surface);
}

.application-card-top {
    display: flex;
    align-items: start;
    justify-content: space-between;
}

.application-icon {
    display: grid;
    width: 3rem;
    height: 3rem;
    place-items: center;
    font-size: 1.35rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.035);
}

.application-copy h3 {
    margin: 0;
    font-size: 1.22rem;
    font-weight: 670;
    letter-spacing: -0.025em;
}

.application-copy p {
    max-width: 24rem;
    margin: var(--space-2) 0 0;
    color: var(--color-text-secondary);
    font-size: 0.92rem;
}

.status-pill {
    padding: 0.28rem 0.62rem;
    color: var(--color-text-secondary);
    font-size: 0.68rem;
    font-weight: 720;
    letter-spacing: 0.04em;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.05);
}

.status-pill.online {
    color: var(--color-success);
    background: var(--color-success-soft);
}

.card-action {
    color: var(--color-purple);
    font-size: 0.85rem;
    font-weight: 650;
}

.unavailable-card {
    opacity: 0.72;
}

/* Nail history header and summary */
.page-hero {
    display: flex;
    min-height: 17rem;
    gap: var(--space-8);
    align-items: end;
    justify-content: space-between;
    padding-bottom: var(--space-12);
    border-bottom: 1px solid var(--color-border);
}

.page-hero h1,
.detail-title h1 {
    font-size: clamp(2.8rem, 5.5vw, 5rem);
}

.collection-count,
.date-chip {
    flex: 0 0 auto;
    padding: 0.55rem 0.85rem;
    color: var(--color-text-secondary);
    font-size: 0.82rem;
    font-weight: 620;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface-soft);
}

.summary-grid {
    display: grid;
    margin-top: var(--space-6);
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
}

.summary-card {
    display: flex;
    min-width: 0;
    padding: var(--space-5);
    gap: var(--space-4);
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface-soft);
}

.summary-icon {
    display: grid;
    width: 2.5rem;
    height: 2.5rem;
    flex: 0 0 auto;
    place-items: center;
    color: var(--color-purple);
    border-radius: var(--radius-md);
    background: var(--color-purple-soft);
}

.summary-icon.pink,
.summary-icon.rose {
    color: var(--color-pink);
    background: var(--color-pink-soft);
}

.summary-value,
.summary-label {
    display: block;
}

.summary-value {
    font-size: 1.35rem;
    font-weight: 720;
    line-height: 1.1;
}

.summary-label {
    margin-top: var(--space-1);
    color: var(--color-text-tertiary);
    font-size: 0.76rem;
}

/* Search and filters */
.filter-panel {
    margin-block: var(--space-12) var(--space-6);
    padding: var(--space-6);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface-soft);
}

.filter-heading {
    margin-bottom: var(--space-5);
}

.clear-link {
    color: var(--color-purple);
    font-size: 0.84rem;
    font-weight: 620;
    text-underline-offset: 0.2rem;
}

.filter-form {
    display: grid;
    grid-template-columns: minmax(15rem, 1.8fr) repeat(3, minmax(9rem, 1fr)) auto;
    gap: var(--space-3);
    align-items: end;
}

.field-group {
    min-width: 0;
}

.field-group label {
    display: block;
    margin-bottom: var(--space-2);
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 630;
}

.field-group input,
.field-group select {
    width: 100%;
    min-height: 2.8rem;
    padding: 0.65rem 0.8rem;
    color: var(--color-text);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    background-color: var(--color-canvas-raised);
    transition:
        border-color var(--transition),
        box-shadow var(--transition);
}

.field-group select {
    padding-right: 2rem;
}

.field-group input::placeholder {
    color: var(--color-text-tertiary);
}

.field-group input:hover,
.field-group select:hover {
    border-color: rgba(212, 216, 235, 0.3);
}

.field-group input:focus,
.field-group select:focus {
    outline: none;
    border-color: var(--color-purple);
    box-shadow: var(--focus-ring);
}

.input-shell {
    position: relative;
}

.input-shell input {
    padding-left: 2.35rem;
}

.input-icon {
    position: absolute;
    z-index: 1;
    top: 50%;
    left: 0.82rem;
    color: var(--color-text-tertiary);
    pointer-events: none;
    transform: translateY(-50%);
}

.filter-button {
    min-width: 5.5rem;
}

/* Nail cards */
.nail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
}

.nail-card {
    display: flex;
    min-width: 0;
    min-height: 100%;
    overflow: hidden;
    flex-direction: column;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface-soft);
    box-shadow: var(--shadow-sm);
    transition:
        border-color var(--transition),
        transform var(--transition),
        box-shadow var(--transition);
}

.nail-card:hover {
    border-color: rgba(167, 139, 250, 0.3);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.nail-card:focus-within {
    border-color: var(--color-purple);
    box-shadow: var(--focus-ring);
}

.nail-image-link {
    display: block;
    margin: var(--space-2) var(--space-2) 0;
    overflow: hidden;
    border-radius: calc(var(--radius-lg) - var(--space-2));
    background: var(--color-canvas-raised);
}

.nail-image-link:focus-visible {
    box-shadow: inset var(--focus-ring);
}

.nail-thumbnail {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform 320ms ease;
}

.nail-card:hover .nail-thumbnail {
    transform: scale(1.018);
}

.nail-card-body {
    display: flex;
    min-width: 0;
    padding: var(--space-4);
    flex: 1;
    flex-direction: column;
}

.nail-card-body time {
    color: var(--color-pink);
    font-size: 0.72rem;
    font-weight: 680;
}

.nail-card-body h2 {
    display: -webkit-box;
    min-height: 2.5em;
    margin: var(--space-2) 0 var(--space-4);
    overflow: hidden;
    font-size: 1rem;
    font-weight: 680;
    line-height: 1.25;
    letter-spacing: -0.015em;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.card-metadata {
    margin: 0 0 var(--space-4);
}

.card-metadata div {
    display: grid;
    min-width: 0;
    padding-block: var(--space-1);
    grid-template-columns: 3.5rem minmax(0, 1fr);
    gap: var(--space-2);
}

.card-metadata dt {
    color: var(--color-text-tertiary);
    font-size: 0.7rem;
    font-weight: 560;
}

.card-metadata dd {
    margin: 0;
    overflow: hidden;
    color: var(--color-text-secondary);
    font-size: 0.72rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-button {
    width: 100%;
    min-height: 2.45rem;
    margin-top: auto;
    padding: 0.48rem 0.65rem;
    font-size: 0.76rem;
}

/* Detail */
.breadcrumb-nav {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    margin-bottom: var(--space-10);
    color: var(--color-text-tertiary);
    font-size: 0.83rem;
}

.breadcrumb-nav a {
    color: var(--color-text-secondary);
    text-decoration: none;
}

.breadcrumb-nav a:hover {
    color: var(--color-text);
}

.detail-title {
    display: flex;
    gap: var(--space-8);
    align-items: end;
    justify-content: space-between;
    margin-bottom: var(--space-8);
}

.detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(18rem, 0.72fr);
    gap: var(--space-5);
    align-items: start;
}

.detail-image-surface,
.detail-panel {
    margin: 0;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface-soft);
    box-shadow: var(--shadow-sm);
}

.detail-image-surface {
    display: grid;
    min-height: 32rem;
    padding: var(--space-3);
    place-items: center;
}

.nail-detail-image {
    display: block;
    width: 100%;
    max-height: 78vh;
    object-fit: contain;
    border-radius: calc(var(--radius-xl) - var(--space-3));
}

.detail-sidebar {
    display: grid;
    gap: var(--space-4);
}

.detail-panel {
    padding: var(--space-6);
}

.panel-heading {
    margin-bottom: var(--space-4);
}

.metadata-list {
    margin: 0;
}

.metadata-list div {
    display: grid;
    padding-block: var(--space-4);
    grid-template-columns: 5.5rem minmax(0, 1fr);
    gap: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.metadata-list dt {
    color: var(--color-text-tertiary);
    font-size: 0.76rem;
    font-weight: 580;
}

.metadata-list dd {
    margin: 0;
    overflow-wrap: anywhere;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.notes-panel p {
    margin: 0;
    color: var(--color-text-secondary);
    white-space: pre-wrap;
}

.back-button {
    width: 100%;
}

.detail-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
}

.delete-panel {
    overflow: hidden;
    border: 1px solid rgba(232, 124, 144, 0.22);
    border-radius: var(--radius-lg);
    background: rgba(126, 44, 61, 0.08);
}

.delete-panel summary {
    padding: var(--space-4) var(--space-5);
    color: #eeb0bc;
    font-size: 0.86rem;
    font-weight: 650;
    cursor: pointer;
}

.delete-panel summary:focus-visible {
    box-shadow: inset var(--focus-ring);
}

.delete-confirmation {
    padding: 0 var(--space-5) var(--space-5);
}

.delete-confirmation p {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}

.confirm-check {
    display: flex;
    min-height: 2.75rem;
    margin-bottom: var(--space-4);
    gap: var(--space-3);
    align-items: center;
    color: var(--color-text-secondary);
    font-size: 0.82rem;
}

.confirm-check input {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: #d7768d;
}

.danger-button {
    display: inline-flex;
    min-height: 2.8rem;
    padding: 0.68rem 1rem;
    align-items: center;
    justify-content: center;
    color: #fff3f5;
    font-size: 0.86rem;
    font-weight: 680;
    border: 1px solid rgba(238, 133, 155, 0.38);
    border-radius: var(--radius-md);
    background: rgba(169, 58, 82, 0.35);
}

.danger-button:hover {
    background: rgba(169, 58, 82, 0.52);
}

/* Edit form */
.form-header {
    max-width: 42rem;
    margin-bottom: var(--space-8);
}

.form-header h1 {
    margin: 0;
    font-size: clamp(2.4rem, 5vw, 4.25rem);
    font-weight: 720;
    letter-spacing: -0.05em;
}

.form-header > p:last-child {
    margin: var(--space-4) 0 0;
    color: var(--color-text-secondary);
}

.edit-form {
    display: grid;
    max-width: 48rem;
    padding: clamp(var(--space-5), 4vw, var(--space-8));
    gap: var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface-soft);
    box-shadow: var(--shadow-sm);
}

.form-field label {
    display: block;
    margin-bottom: var(--space-2);
    color: var(--color-text);
    font-size: 0.84rem;
    font-weight: 640;
}

.form-field input,
.form-field textarea {
    width: 100%;
    min-height: 2.9rem;
    padding: 0.7rem 0.85rem;
    color: var(--color-text);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    background: var(--color-canvas-raised);
    resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-purple);
    box-shadow: var(--focus-ring);
}

.form-field [aria-invalid="true"] {
    border-color: #d7768d;
}

.field-help,
.field-error {
    margin: var(--space-2) 0 0;
    font-size: 0.76rem;
}

.field-help {
    color: var(--color-text-tertiary);
}

.field-error {
    color: #efafbc;
}

.form-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* Empty and error states */
.empty-state {
    display: grid;
    min-height: 22rem;
    padding: clamp(var(--space-8), 8vw, var(--space-16));
    place-items: center;
    align-content: center;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-surface-soft);
}

.empty-state h1,
.empty-state h2 {
    max-width: 35rem;
    margin: var(--space-3) 0 0;
    font-size: clamp(1.7rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.035em;
}

.empty-state p:not(.eyebrow) {
    max-width: 32rem;
    margin: var(--space-3) 0 var(--space-6);
    color: var(--color-text-secondary);
}

.empty-symbol {
    display: grid;
    width: 3.5rem;
    height: 3.5rem;
    place-items: center;
    color: var(--color-purple);
    border: 1px solid rgba(167, 139, 250, 0.22);
    border-radius: var(--radius-lg);
    background: var(--color-purple-soft);
}

.error-state {
    min-height: min(32rem, 65vh);
}

/* Footer */
.app-footer {
    display: flex;
    min-height: 6rem;
    gap: var(--space-6);
    align-items: center;
    justify-content: space-between;
    color: var(--color-text-tertiary);
    font-size: 0.78rem;
    border-top: 1px solid var(--color-border);
}

.app-footer > span:first-child {
    color: var(--color-text-secondary);
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

/* Responsive layout */
@media (min-width: 43.75rem) {
    .nail-grid {
        grid-template-columns: repeat(auto-fit, minmax(13.5rem, 1fr));
    }
}

@media (min-width: 75rem) {
    .nail-grid {
        grid-template-columns: repeat(auto-fit, minmax(14.5rem, 1fr));
    }
}

@media (max-width: 68rem) {
    .application-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .filter-form {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .search-field {
        grid-column: 1 / -1;
    }

    .filter-button {
        align-self: end;
    }

    .detail-layout {
        grid-template-columns: minmax(0, 1.35fr) minmax(17rem, 0.8fr);
    }
}

@media (max-width: 50rem) {
    .app-container {
        width: min(calc(100% - 1.5rem), var(--content-width));
    }

    .header-inner {
        min-height: auto;
        padding-top: var(--space-3);
        flex-wrap: wrap;
        gap: var(--space-2);
    }

    .primary-nav {
        width: 100%;
        order: 2;
    }

    .nav-item {
        padding-bottom: var(--space-3);
    }

    .home-hero {
        min-height: 30rem;
        grid-template-columns: 1fr;
    }

    .relationship-card {
        grid-template-columns: 1fr;
    }

    .relationship-time {
        text-align: left;
    }

    .hero-orbit {
        display: none;
    }

    .page-hero {
        min-height: auto;
        align-items: start;
        flex-direction: column;
    }

    .summary-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .detail-layout {
        grid-template-columns: 1fr;
    }

    .detail-image-surface {
        min-height: 20rem;
    }
}

@media (max-width: 37.5rem) {
    .page-content {
        padding-block: var(--space-10);
    }

    .home-hero h1,
    .page-hero h1,
    .detail-title h1 {
        letter-spacing: -0.045em;
    }

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

    .application-card.featured {
        grid-column: auto;
    }

    .application-card {
        min-height: 15rem;
    }

    .section-heading > p,
    .footer-note {
        display: none;
    }

    .summary-card {
        padding: var(--space-4);
    }

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

    .relationship-time {
        display: flex;
        flex-wrap: wrap;
        column-gap: var(--space-1);
    }

    .time-separator {
        margin-inline: var(--space-1);
    }

    .summary-icon {
        width: 2.25rem;
        height: 2.25rem;
    }

    .filter-panel {
        padding: var(--space-4);
    }

    .filter-form {
        grid-template-columns: 1fr;
    }

    .search-field {
        grid-column: auto;
    }

    .filter-button {
        width: 100%;
    }

    .nail-card-body {
        padding: var(--space-3);
    }

    .nail-card-body h2 {
        margin-bottom: var(--space-3);
    }

    .card-metadata div {
        display: block;
    }

    .card-metadata dd {
        margin-top: 0.1rem;
    }

    .detail-title {
        align-items: start;
        flex-direction: column;
    }

    .detail-panel {
        padding: var(--space-5);
    }

    .detail-actions {
        grid-template-columns: 1fr;
    }

    .form-actions > * {
        width: 100%;
    }
}

@media (max-width: 22rem) {
    .nail-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}