/* =========================================================================
   CacheTrades — base stylesheet
   Neo-brutalist token system: bold ink borders, flat offset shadows, warm
   paper background. Every color/font value lives in :root so a future
   theme file only needs to redeclare these variables, never the layout
   rules below them.
   ========================================================================= */

:root {
    /* Color */
    --color-ink: #111110;
    --color-paper: #F7F4EC;
    --color-surface: #FFFFFF;
    --color-accent: #FF4317;
    --color-accent-ink: #111110;
    --color-highlight: #FFD400;
    --color-active: #1A7F37;
    --color-paused: #B8860B;
    --color-closed: #6B6862;
    --color-muted: #6B6862;
    --color-active-ink: #FFFFFF;
    --color-paused-ink: #FFFFFF;
    --color-closed-ink: #FFFFFF;
    --color-accent-text: var(--color-accent);
    --tier-accent: var(--color-accent);

    /* Type */
    --font-display: 'Archivo Black', sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;

    /* Structure */
    --border-width: 3px;
    --shadow-offset: 6px;
    --shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--color-ink);
    --shadow-tight: 3px 3px 0 var(--color-ink);
    --radius: 0px;
    --container-width: 1100px;
    --space: 1.5rem;
}

/* -------------------------------------------------------------------------
   Reset
   ------------------------------------------------------------------------- */

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

html, body {
    margin: 0;
    padding: 0;
}

body {
    background: var(--color-paper);
    color: var(--color-ink);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--color-ink);
    text-decoration: none;
}

ul, ol {
    padding: 0;
    margin: 0;
}

h1, h2, h3 {
    font-family: var(--font-display);
    line-height: 1.1;
    margin: 0 0 0.5em;
    text-transform: uppercase;
    letter-spacing: 0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; }

p {
    margin: 0 0 1em;
}

:focus-visible {
    outline: 3px solid var(--color-accent-text);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -3rem;
    left: 1rem;
    z-index: 1000;
    background: var(--color-surface);
    color: var(--color-ink);
    padding: 0.6rem 1rem;
    border: var(--border-width) solid var(--color-ink);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-decoration: none;
    transition: top 150ms ease;
}

.skip-link:focus-visible {
    top: 1rem;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* -------------------------------------------------------------------------
   Layout
   ------------------------------------------------------------------------- */

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space);
}

.site-header {
    border-bottom: var(--border-width) solid var(--color-ink);
    background: var(--color-surface);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
}

.site-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.site-logo__icon {
    display: block;
    border-radius: 50%;
}

.site-nav {
    display: flex;
    gap: 1.75rem;
    font-family: var(--font-mono);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
}

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

main {
    padding: var(--space) 0 4rem;
}

.site-footer {
    border-top: var(--border-width) solid var(--color-ink);
    margin-top: 3rem;
    padding: 2rem 0;
    background: var(--color-surface);
}

.site-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-muted);
}

.site-footer__links {
    display: flex;
    gap: 1.25rem;
}

/* -------------------------------------------------------------------------
   Buttons
   ------------------------------------------------------------------------- */

.button {
    display: inline-block;
    font-family: var(--font-mono);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.85rem;
    padding: 0.85rem 1.5rem;
    border: var(--border-width) solid var(--color-ink);
    background: var(--color-surface);
    color: var(--color-ink);
    box-shadow: var(--shadow-tight);
    transition: transform 120ms ease, box-shadow 120ms ease;
}

.button:hover {
    transform: translate(-2px, -2px);
    box-shadow: 5px 5px 0 var(--color-ink);
}

.button--primary {
    background: var(--color-accent);
    color: var(--color-accent-ink);
}

/* -------------------------------------------------------------------------
   Badges (status pills — rendered like a stamped label)
   ------------------------------------------------------------------------- */

.badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
    border: 2px solid var(--color-ink);
    margin-bottom: 0.6rem;
}

.badge--active { background: var(--color-active); color: var(--color-active-ink); }
.badge--paused { background: var(--color-paused); color: var(--color-paused-ink); }
.badge--closed { background: var(--color-closed); color: var(--color-closed-ink); }
.badge--draft { background: var(--color-surface); color: var(--color-muted); }

/* -------------------------------------------------------------------------
   Hero
   ------------------------------------------------------------------------- */

.hero {
    padding: 2.5rem 0 3rem;
    max-width: 720px;
}

.hero p {
    font-size: 1.1rem;
    color: var(--color-muted);
}

/* -------------------------------------------------------------------------
   Tier grid + tier card
   ------------------------------------------------------------------------- */

.tier-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space);
}

.tier-card {
    display: block;
    flex: 1 1 320px;
    max-width: 360px;
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-ink);
    box-shadow: var(--shadow);
    color: var(--color-ink);
    transition: transform 150ms ease, box-shadow 150ms ease;
    border-top: 6px solid var(--tier-accent);
}

.tier-card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 9px 9px 0 var(--color-ink);
}

.tier-card__image {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-bottom: var(--border-width) solid var(--color-ink);
}

.tier-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tier-card__body {
    padding: 1.25rem;
}

.tier-card__name {
    margin-bottom: 0.4rem;
    font-size: 1.15rem;
}

.tier-card__tagline {
    color: var(--color-muted);
    font-size: 0.95rem;
}

.tier-card__current,
.tier-card__meta {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.tier-card__meta {
    color: var(--color-muted);
    margin-bottom: 0;
}

/* -------------------------------------------------------------------------
   Tier detail / timeline
   ------------------------------------------------------------------------- */

.tier-header {
    max-width: 720px;
    margin-bottom: 2.5rem;
}

.tier-header__goal {
    font-size: 1.1rem;
    color: var(--color-muted);
}

.tier-header__closed-note {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.current-trade-banner {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-ink);
    box-shadow: var(--shadow-tight);
    padding: 0.85rem 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--color-ink);
    max-width: fit-content;
}

.current-trade-banner img {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border: 2px solid var(--color-ink);
    flex-shrink: 0;
}

.current-trade-banner__label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-muted);
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-ink);
    box-shadow: var(--shadow-tight);
    padding: 1.25rem;
    color: var(--color-ink);
    text-align: left;
    position: relative;
    transition: transform 120ms ease, box-shadow 120ms ease;
}

.timeline-item:hover {
    transform: translate(-2px, -2px);
    box-shadow: 5px 5px 0 var(--color-ink);
}

.timeline-item__link {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.timeline-item__number {
    position: absolute;
    top: -1px;
    left: -1px;
    z-index: 2;
    pointer-events: none;
    background: var(--color-ink);
    color: var(--color-paper);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    padding: 0.3rem 0.6rem;
}

.timeline-item__offer {
    position: relative;
    z-index: 2;
    display: inline-block;
    margin-top: 0.4rem;
}

.timeline-item--current {
    border-color: var(--color-accent);
}

.timeline-item__image {
    flex-shrink: 0;
    width: 100px;
    height: 100px;
}

.timeline-item__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: 2px solid var(--color-ink);
}

.timeline-item__content {
    flex: 1;
    min-width: 0;
    text-align: left;
}

.timeline-item__description {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
}

.timeline-item__title {
    margin: 0 0 0.25rem;
    font-size: 1.15rem;
}

.timeline-item__date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-muted);
    margin: 0;
}

/* -------------------------------------------------------------------------
   Trade detail
   ------------------------------------------------------------------------- */

.trade-detail {
    max-width: 720px;
}

.trade-detail__breadcrumb {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.trade-detail__date {
    font-family: var(--font-mono);
    color: var(--color-muted);
    font-size: 0.85rem;
}

.trade-detail__image {
    border: var(--border-width) solid var(--color-ink);
    box-shadow: var(--shadow);
    margin: 1.5rem 0;
    overflow: hidden;
}

.trade-detail__credit {
    border-top: 2px solid var(--color-ink);
    padding-top: 1.25rem;
    margin-top: 1.5rem;
}

.trade-detail__nav {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-top: 2.5rem;
    border-top: var(--border-width) solid var(--color-ink);
    padding-top: 1.25rem;
}

/* -------------------------------------------------------------------------
   Traders gallery
   ------------------------------------------------------------------------- */

.trader-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space);
    margin-top: 2rem;
}

.trader-card {
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-ink);
    box-shadow: var(--shadow-tight);
    padding: 1.25rem;
    text-align: center;
}

.trader-card__photo {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-ink);
    margin: 0 auto 1rem;
}

.trader-card__photo--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-highlight);
    font-family: var(--font-display);
    font-size: 1.75rem;
}

.trader-card__name {
    margin-bottom: 0.25rem;
    font-size: 1.15rem;
}

.trader-card__meta {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-muted);
}

.trader-card__bio {
    font-size: 0.9rem;
}

.trader-card__website {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-decoration: underline;
}

/* -------------------------------------------------------------------------
   Flash messages
   ------------------------------------------------------------------------- */

.flash {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    border: var(--border-width) solid var(--color-ink);
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
}

.flash--success {
    background: var(--color-active);
    color: var(--color-active-ink);
}

.flash--error {
    background: var(--color-accent);
    color: var(--color-accent-ink);
}

/* -------------------------------------------------------------------------
   Forms (offer submission)
   ------------------------------------------------------------------------- */

.offer-form-page {
    max-width: 640px;
}

.offer-form-page__breadcrumb {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* -------------------------------------------------------------------------
   Subscribe form
   ------------------------------------------------------------------------- */

.subscribe-form {
    max-width: 480px;
    border: var(--border-width) solid var(--color-ink);
    padding: 1.5rem 2rem;
    margin: 2rem auto;
}

.subscribe-form__tiers {
    border-top: 1px solid var(--color-ink);
    padding-top: 0.75rem;
    margin: 0.5rem 0 1rem;
}

.offer-form {
    margin-top: 1.5rem;
}

.field {
    margin-bottom: 1.5rem;
}

.field label {
    display: block;
    font-family: var(--font-mono);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="file"],
.field textarea {
    width: 100%;
    font-family: var(--font-body);
    font-size: 1rem;
    padding: 0.65rem 0.75rem;
    border: var(--border-width) solid var(--color-ink);
    background: var(--color-surface);
    color: var(--color-ink);
}

.field textarea {
    resize: vertical;
}

.field--checkbox label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-transform: none;
    font-family: var(--font-body);
    font-weight: 400;
    letter-spacing: normal;
    font-size: 0.95rem;
}

.field--checkbox label a {
    text-decoration: underline;
}

.field__hint {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-muted);
    margin: 0.35rem 0 0;
}

.field__error {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-accent-text);
    margin: 0.35rem 0 0;
}

/* -------------------------------------------------------------------------
   Static pages, empty states, 404
   ------------------------------------------------------------------------- */

.static-page {
    max-width: 680px;
}

.static-page h2 {
    margin-top: 2rem;
}

.empty-state {
    font-family: var(--font-mono);
    color: var(--color-muted);
    border: 2px dashed var(--color-ink);
    padding: 2rem;
    text-align: center;
}

.not-found {
    text-align: center;
    padding: 4rem 0;
}

/* -------------------------------------------------------------------------
   Responsive
   ------------------------------------------------------------------------- */

@media (max-width: 640px) {
    .site-header__inner {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }

    .timeline-item {
        flex-direction: column;
        gap: 0.75rem;
    }

    .timeline-item__image {
        width: 100%;
        height: auto;
        aspect-ratio: 4 / 3;
    }

    .timeline-item__image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .timeline-item__number {
        font-size: 0.65rem;
    }

    .trade-detail__nav {
        flex-direction: column;
        gap: 0.75rem;
    }

    .site-footer__inner {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}