:root {
    --color-canvas-white: #ffffff;
    --color-carbon-black: #202020;
    --color-graphite: #333333;
    --color-stone-gray: #555555;
    --color-silver-lining: #e6e6e6;
    --color-cloud-blue: #eaf4ff;
    --color-sky-blue: #4177ff;
    --color-ocean-blue: #41a9ff;
    --color-horizon-start: #f6fbff;
    --color-horizon-end: #e6f2ff;

    --font-primary: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

    --spacing-4: 4px;
    --spacing-8: 8px;
    --spacing-12: 12px;
    --spacing-14: 14px;
    --spacing-18: 18px;
    --spacing-24: 24px;
    --spacing-48: 48px;

    --radius-cards: 12px;
    --radius-buttons: 100px;
    --radius-badges: 100px;

    --shadow-sm: rgba(0, 0, 0, 0.06) 0px 6px 18px;

    /* Legacy aliases for template compatibility */
    --bg: var(--color-canvas-white);
    --surface: var(--color-canvas-white);
    --surface-strong: var(--color-canvas-white);
    --ink: var(--color-carbon-black);
    --muted: var(--color-stone-gray);
    --border: var(--color-silver-lining);
    --accent: var(--color-sky-blue);
    --accent-strong: var(--color-sky-blue);
    --accent-soft: var(--color-cloud-blue);
    --danger: #b6523a;
    --danger-soft: rgba(182, 82, 58, 0.12);
    --shadow: var(--shadow-sm);
    --radius-xl: var(--radius-cards);
    --radius-lg: var(--radius-cards);
    --radius-md: var(--radius-cards);
    --radius-sm: 8px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: var(--font-primary);
    font-size: 12px;
    line-height: 1.4;
    letter-spacing: 0.02em;
    background: var(--color-canvas-white);
    color: var(--color-graphite);
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    width: 100%;
}

button,
input,
textarea,
select {
    font: inherit;
    letter-spacing: 0.02em;
}

/* ── Shell ── */

.app-shell {
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
    padding: var(--spacing-18) var(--spacing-24) 112px;
}

.app-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: var(--spacing-8) 0 var(--spacing-18);
}

.eyebrow,
.section-kicker {
    display: inline-block;
    font-size: 10px;
    line-height: 1.4;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-stone-gray);
}

.brand-link {
    display: inline-block;
    margin-top: var(--spacing-4);
    font-size: clamp(24px, 4vw, 38px);
    font-weight: 600;
    line-height: 1;
    color: var(--color-carbon-black);
}

.ghost-link {
    color: var(--color-sky-blue);
    font-weight: 500;
}

/* ── Icon button / badge ── */

.icon-button {
    position: relative;
    display: inline-flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: var(--color-canvas-white);
    border: 1px solid var(--color-silver-lining);
    border-radius: var(--radius-buttons);
    box-shadow: var(--shadow-sm);
}

.icon-button::before {
    content: "\1F514";
    font-size: 18px;
}

.icon-button span:first-child {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.badge {
    position: absolute;
    top: -4px;
    right: -2px;
    min-width: 20px;
    padding: 2px 6px;
    border-radius: var(--radius-badges);
    background: var(--color-sky-blue);
    color: var(--color-canvas-white);
    font-size: 10px;
    font-weight: 600;
    text-align: center;
}

/* ── Layout helpers ── */

.page {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-24);
}

.stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-18);
}

.compact-gap {
    gap: var(--spacing-8);
}

/* ── Cards ── */

.card,
.feature-card,
.profile-hero {
    background: var(--color-canvas-white);
    border: 1px solid var(--color-silver-lining);
    border-radius: var(--radius-cards);
    box-shadow: none;
}

.card-padded,
.feature-card,
.profile-hero {
    padding: var(--spacing-18);
}

/* ── Hero ── */

.hero {
    position: relative;
    padding: var(--spacing-48) var(--spacing-24);
    border-radius: var(--radius-cards);
    background:
        linear-gradient(180deg, var(--color-horizon-start), var(--color-horizon-end));
    color: var(--color-carbon-black);
    overflow: hidden;
    text-align: center;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('/static/img/hero-clouds.jpg') center/cover no-repeat;
    opacity: 0.08;
    pointer-events: none;
}

.hero-pill,
.chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    padding: 6px 10px;
    border-radius: var(--radius-badges);
    background: var(--color-cloud-blue);
    color: var(--color-graphite);
    font-size: 11px;
    font-weight: 400;
}

.hero-pill {
    background: rgba(65, 119, 255, 0.12);
    color: var(--color-sky-blue);
}

.hero h1,
.card h1,
.profile-hero h1 {
    margin: var(--spacing-12) 0 var(--spacing-8);
    font-size: 38px;
    font-weight: 600;
    line-height: 1;
    color: var(--color-carbon-black);
}

.hero-copy,
.muted {
    color: var(--color-stone-gray);
}

.hero .hero-copy {
    color: var(--color-graphite);
    max-width: 620px;
    margin: 0 auto;
    font-size: 14px;
    line-height: 1.4;
}

.hero-actions,
.button-row,
.chip-row,
.transaction-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-12);
    align-items: center;
    justify-content: center;
}

/* ── Buttons ── */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 12px 26px;
    border: 0;
    border-radius: var(--radius-buttons);
    font-weight: 500;
    font-size: 12px;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: opacity 0.15s;
}

.button:hover {
    opacity: 0.85;
}

.button.small {
    min-height: 36px;
    padding: 8px 18px;
}

.button.primary {
    background: var(--color-carbon-black);
    color: var(--color-canvas-white);
}

.button.secondary {
    background: transparent;
    color: var(--color-stone-gray);
    border: 1px solid var(--color-stone-gray);
}

.button.ghost {
    background: transparent;
    color: var(--color-stone-gray);
    border: 1px solid var(--color-silver-lining);
}

/* ── Forms ── */

.field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.checkbox-field {
    justify-content: end;
}

.field span {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-graphite);
}

.field input,
.field textarea,
.field select {
    width: 100%;
    min-height: 44px;
    padding: var(--spacing-12) var(--spacing-14);
    border-radius: var(--radius-cards);
    border: 1px solid var(--color-silver-lining);
    background: var(--color-canvas-white);
    color: var(--color-graphite);
}

.field input:focus,
.field textarea:focus,
.field select:focus {
    outline: 2px solid var(--color-sky-blue);
    outline-offset: 2px;
}

.field textarea {
    min-height: 110px;
    resize: vertical;
}

.checkbox-field input {
    width: 20px;
    min-height: 20px;
    margin: 0;
}

.filter-grid {
    display: grid;
    gap: var(--spacing-14);
}

/* ── Sections ── */

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
}

.section-head h1,
.section-head h2 {
    margin: 6px 0 0;
    font-weight: 600;
}

.section-head.compact h2 {
    margin: 0;
    font-size: 18px;
    line-height: 1.11;
}

/* ── Grids ── */

.feature-grid,
.list-grid,
.info-grid {
    display: grid;
    gap: var(--spacing-24);
}

/* ── Item cards ── */

.item-card {
    overflow: hidden;
}

.item-card-body {
    display: grid;
    grid-template-columns: 112px 1fr;
    gap: var(--spacing-14);
}

.item-visual,
.detail-gallery {
    min-height: 130px;
    background: var(--color-cloud-blue);
}

.item-visual {
    border-radius: var(--radius-cards) 0 0 var(--radius-cards);
}

.detail-gallery {
    min-height: 260px;
    border-radius: var(--radius-cards) var(--radius-cards) 0 0;
}

.item-visual img,
.detail-gallery img {
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-cards);
}

.item-visual.placeholder,
.detail-gallery.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-18);
    text-align: center;
    color: var(--color-sky-blue);
    font-weight: 500;
}

.item-copy {
    padding: var(--spacing-14) var(--spacing-14) var(--spacing-14) 0;
}

.item-copy h2,
.card h2,
.card h3 {
    margin: var(--spacing-4) 0;
    font-weight: 600;
    font-size: 14px;
    line-height: 1.4;
    color: var(--color-carbon-black);
}

.small {
    font-size: 11px;
}

/* ── Chips ── */

.chip-muted {
    background: rgba(51, 51, 51, 0.06);
    color: var(--color-stone-gray);
}

.chip-rating {
    background: rgba(255, 183, 77, 0.15);
    color: #8e5d06;
}

.chip-danger {
    background: rgba(182, 82, 58, 0.12);
    color: var(--danger);
}

/* ── Detail ── */

.detail-card {
    overflow: hidden;
}

.info-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.info-label {
    display: block;
    margin-bottom: 6px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-stone-gray);
}

/* ── Notices ── */

.inline-note,
.empty-state,
.dev-code,
.notice {
    padding: var(--spacing-14) var(--spacing-18);
    border-radius: var(--radius-cards);
    border: 1px solid var(--color-silver-lining);
    background: var(--color-canvas-white);
}

.empty-state {
    text-align: center;
}

.empty-state.compact {
    text-align: left;
}

.dev-code {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-cloud-blue);
}

.notice.success {
    background: var(--color-cloud-blue);
    border-color: rgba(65, 119, 255, 0.2);
}

.notice.error {
    background: var(--danger-soft);
    border-color: rgba(182, 82, 58, 0.24);
}

/* ── Profile ── */

.profile-hero {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-18);
    align-items: center;
}

.metric-pill {
    min-width: 140px;
    padding: var(--spacing-14) var(--spacing-18);
    border-radius: var(--radius-cards);
    background: var(--color-cloud-blue);
    text-align: right;
}

.metric-pill span {
    display: block;
    color: var(--color-stone-gray);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.metric-pill strong {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-carbon-black);
}

/* ── Notifications ── */

.notification-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

/* ── Reviews ── */

.review-form {
    padding: var(--spacing-18);
    border-radius: var(--radius-cards);
    background: var(--color-cloud-blue);
    border: 1px solid rgba(65, 119, 255, 0.12);
}

.review-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-12);
}

.review-card,
.admin-row {
    padding: var(--spacing-14) var(--spacing-18);
    border-radius: var(--radius-cards);
    border: 1px solid var(--color-silver-lining);
    background: var(--color-canvas-white);
}

.review-head,
.admin-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-12);
}

/* ── Chat ── */

.chat-feed {
    max-height: 420px;
    overflow-y: auto;
    padding-right: var(--spacing-4);
}

.chat-form {
    display: grid;
    gap: var(--spacing-12);
}

.chat-form textarea {
    width: 100%;
    min-height: 110px;
    padding: var(--spacing-12) var(--spacing-14);
    border-radius: var(--radius-cards);
    border: 1px solid var(--color-silver-lining);
}

.message-bubble {
    max-width: 86%;
    margin-bottom: var(--spacing-12);
    padding: var(--spacing-12) var(--spacing-14);
    border-radius: var(--radius-cards) var(--radius-cards) var(--radius-cards) var(--spacing-4);
    background: var(--color-canvas-white);
    border: 1px solid var(--color-silver-lining);
}

.message-bubble.mine {
    margin-left: auto;
    border-radius: var(--radius-cards) var(--radius-cards) var(--spacing-4) var(--radius-cards);
    background: var(--color-cloud-blue);
    border-color: rgba(65, 119, 255, 0.12);
}

.message-meta {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-8);
    font-size: 10px;
    color: var(--color-stone-gray);
}

.positive {
    color: var(--color-sky-blue);
}

.negative {
    color: var(--danger);
}

/* ── FAB ── */

.floating-action {
    position: fixed;
    right: 22px;
    bottom: 94px;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-buttons);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-carbon-black);
    color: var(--color-canvas-white);
    font-size: 28px;
    font-weight: 400;
    box-shadow: var(--shadow-sm);
}

/* ── Bottom nav ── */

.bottom-nav {
    position: fixed;
    left: 50%;
    bottom: var(--spacing-18);
    transform: translateX(-50%);
    width: min(92vw, 720px);
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-4);
    padding: var(--spacing-8);
    border-radius: var(--radius-buttons);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--color-silver-lining);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px);
}

.bottom-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 var(--spacing-4);
    border-radius: var(--radius-buttons);
    color: var(--color-stone-gray);
    font-weight: 500;
    font-size: 11px;
    text-align: center;
}

.bottom-link.active {
    background: var(--color-cloud-blue);
    color: var(--color-sky-blue);
}

/* ── Responsive ── */

@media (min-width: 760px) {
    .app-shell {
        padding-bottom: 132px;
    }

    .filter-grid {
        grid-template-columns: 1fr 1fr auto;
        align-items: end;
    }

    .feature-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

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

@media (max-width: 640px) {
    .app-shell {
        padding: var(--spacing-14) var(--spacing-14) 110px;
    }

    .hero h1 {
        font-size: 28px;
    }

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

    .item-visual {
        border-radius: var(--radius-cards) var(--radius-cards) 0 0;
        min-height: 180px;
    }

    .item-copy {
        padding: 0 var(--spacing-18) var(--spacing-18);
    }

    .profile-hero {
        flex-direction: column;
        align-items: flex-start;
    }

    .metric-pill {
        width: 100%;
        text-align: left;
    }
}

/* ── Focus / Accessibility ── */

:focus-visible {
    outline: 2px solid var(--color-sky-blue);
    outline-offset: 4px;
}