/* =========================================================
   BizTowers Shared Discovery Layer
   File: public/assets/css/discovery.css

   Purpose:
   - Shared premium UI language for Digital Street, Opportunity Plaza,
     buyer home discovery surfaces and future marketplace discovery pages.
   - Load AFTER tokens.css and before page-specific discovery overrides when needed.
========================================================= */

/* ---------------------------------
   Page base
--------------------------------- */
body.op-discovery-page,
body.op-plaza-page,
body.op-digital-street-page,
body.ds-page {
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.045), transparent 28%),
        radial-gradient(circle at top right, rgba(6, 182, 212, 0.045), transparent 26%),
        var(--bt-bg-soft);
    color: var(--bt-ink);
}

/* ---------------------------------
   Shared shells
--------------------------------- */
.op-shell,
.ds-shell,
.op-social-page,
.op-show-page,
.bt-discovery-shell {
    max-width: var(--bt-container-max);
    margin: 0 auto;
}

.bt-discovery-layout,
.op-discovery-layout {
    display: grid;
    gap: var(--bt-space-5);
}

.bt-discovery-main {
    min-width: 0;
}

.bt-discovery-side-stack,
.op-side-stack {
    display: grid;
    gap: var(--bt-space-4);
}

/* ---------------------------------
   Panels
--------------------------------- */
.bt-discovery-panel,
.op-soft-panel {
    background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.94));
    border: 1px solid var(--bt-line);
    border-radius: var(--bt-radius-lg);
    box-shadow: var(--bt-shadow-md);
    overflow: hidden;
}

.bt-discovery-panel-body,
.op-soft-panel-body {
    padding: var(--bt-space-5);
}

.bt-discovery-section-title,
.op-side-title {
    font-size: 1.02rem;
    font-weight: var(--bt-weight-black);
    letter-spacing: -0.02em;
    color: var(--bt-ink);
    margin-bottom: 0.8rem;
}

.bt-discovery-section-title-dark,
.op-side-title-dark {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 0.38rem 0.72rem;
    border-radius: var(--bt-radius-sm);
    background: var(--bt-ink);
    color: var(--bt-inverse);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.16);
}

.bt-discovery-empty,
.op-side-empty {
    color: var(--bt-muted);
    font-size: var(--bt-text-md);
    line-height: var(--bt-leading-loose);
}

/* ---------------------------------
   Shared hero
--------------------------------- */
.bt-discovery-hero,
.op-hero,
.op-social-hero,
.ds-hero {
    position: relative;
    overflow: hidden;
    border-radius: var(--bt-radius-lg);
    border: 1px solid var(--bt-line);
    box-shadow: var(--bt-shadow-md);
}

/* Light discovery hero: default for Opportunity Plaza and calm discovery pages */
.bt-discovery-hero,
.op-hero,
.op-social-hero {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.96)) !important;
    color: var(--bt-ink) !important;
}

/* Dark discovery hero: Digital Street can keep its cinematic entry point */
.bt-discovery-hero.is-dark,
.ds-hero {
    background:
        radial-gradient(circle at 80% 20%, rgba(255,255,255,.12), transparent 24%),
        radial-gradient(circle at 20% 80%, rgba(255,255,255,.08), transparent 22%),
        linear-gradient(135deg, var(--bt-dark) 0%, var(--bt-dark-2) 56%, var(--bt-primary-600) 100%) !important;
    color: var(--bt-inverse) !important;
    border-color: rgba(255,255,255,.08);
    box-shadow: 0 18px 42px rgba(15,23,42,.18);
}

.bt-discovery-hero::before,
.bt-discovery-hero::after,
.op-hero::before,
.op-hero::after,
.op-social-hero::before,
.op-social-hero::after {
    display: none !important;
    content: none !important;
}

.bt-discovery-hero-inner,
.op-hero-inner,
.op-social-hero-inner {
    position: relative;
    z-index: 1;
    padding: 1.2rem 1.35rem;
}

.ds-hero {
    padding: 1.2rem 1.35rem;
}

.ds-hero > * {
    position: relative;
    z-index: 1;
}

.bt-discovery-kicker,
.op-kicker,
.ds-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    width: fit-content;
    padding: 0.38rem 0.7rem;
    border-radius: var(--bt-radius-pill);
    background: var(--bt-primary-soft);
    border: 1px solid var(--bt-primary-line);
    color: var(--bt-primary-700);
    font-size: var(--bt-text-xs);
    font-weight: var(--bt-weight-black);
    line-height: 1;
    letter-spacing: 0.02em;
}

.ds-kicker,
.bt-discovery-hero.is-dark .bt-discovery-kicker,
.ds-hero .bt-discovery-kicker {
    background: rgba(255,255,255,.12);
    border-color: rgba(255,255,255,.16);
    color: #ffffff;
    text-transform: uppercase;
}

.bt-discovery-title,
.op-hero-title,
.ds-hero-copy h1 {
    font-size: clamp(1.45rem, 2.2vw, 2.35rem);
    font-weight: var(--bt-weight-black);
    letter-spacing: -0.02em;
    line-height: var(--bt-leading-tight);
    color: inherit;
    margin: 0.65rem 0 0.4rem;
}

.bt-discovery-text,
.op-hero-text,
.ds-hero-copy p {
    max-width: 700px;
    color: var(--bt-muted);
    font-size: var(--bt-text-md);
    line-height: 1.65;
    margin-bottom: 0;
}

.ds-hero-copy p,
.bt-discovery-hero.is-dark .bt-discovery-text,
.ds-hero .bt-discovery-text {
    color: rgba(255,255,255,.78);
}

/* ---------------------------------
   Hero + side tool layouts
--------------------------------- */
.bt-discovery-hero-row,
.op-hero-tools-row,
.ds-hero-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
    gap: var(--bt-space-4);
    align-items: stretch;
}

.bt-discovery-hero-tools .bt-home-upgrade,
.op-hero-tools .bt-home-upgrade,
.ds-hero-tools .bt-home-upgrade {
    height: 100%;
    min-height: 0;
    margin-bottom: 0 !important;
    border-radius: var(--bt-radius-lg);
    padding: var(--bt-space-4);
}

.bt-discovery-hero-tools .bt-home-upgrade p,
.op-hero-tools .bt-home-upgrade p,
.ds-hero-tools .bt-home-upgrade p {
    font-size: var(--bt-text-sm);
    line-height: 1.45;
    margin-bottom: 0.7rem;
}

/* ---------------------------------
   Chips
--------------------------------- */
.bt-discovery-chip-grid,
.op-sidebar-chip-grid,
.ds-type-scroll {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.ds-type-scroll {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding: 0.15rem 0.15rem 0.35rem;
    scrollbar-width: thin;
}

.ds-type-scroll::-webkit-scrollbar {
    height: 6px;
}

.ds-type-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.ds-type-scroll::-webkit-scrollbar-thumb {
    background: rgba(15,23,42,.16);
    border-radius: var(--bt-radius-pill);
}

.bt-discovery-chip,
.op-sidebar-chip,
.ds-type-chip {
    flex: 0 0 auto;
    min-width: 0;
    max-width: 100%;
    display: inline-flex;
    align-items: center;
    gap: 0.42rem;
    padding: 0.56rem 0.82rem;
    border-radius: var(--bt-radius-pill);
    border: 1px solid var(--bt-line-soft);
    background: var(--bt-surface);
    color: var(--bt-ink-soft);
    text-decoration: none;
    font-size: var(--bt-text-sm);
    font-weight: var(--bt-weight-bold);
    line-height: 1.2;
    white-space: nowrap;
    box-shadow: var(--bt-shadow-xs);
    transition:
        transform var(--bt-transition),
        box-shadow var(--bt-transition),
        border-color var(--bt-transition),
        background var(--bt-transition),
        color var(--bt-transition);
}

.bt-discovery-chip:hover,
.op-sidebar-chip:hover,
.ds-type-chip:hover {
    border-color: var(--bt-primary-line);
    background: var(--bt-primary-soft);
    color: var(--bt-primary-700);
    transform: translateY(-1px);
    box-shadow: var(--bt-shadow-sm);
}

.bt-discovery-chip.is-active,
.ds-type-chip.is-active {
    background: linear-gradient(135deg, rgba(37,99,235,.14), rgba(6,182,212,.08));
    border-color: rgba(37,99,235,.24);
    color: var(--bt-primary-700);
    box-shadow: var(--bt-shadow-blue);
}

.ds-type-chip-icon {
    width: 1.65rem;
    height: 1.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--bt-radius-pill);
    background: var(--bt-primary-soft);
    color: var(--bt-primary-700);
}

/* ---------------------------------
   Feed cards
--------------------------------- */
.bt-discovery-card,
.op-feed-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--bt-line);
    border-radius: var(--bt-radius-lg);
    background: linear-gradient(180deg, var(--bt-surface) 0%, var(--bt-surface-soft) 100%);
    box-shadow: var(--bt-shadow-sm);
    transition:
        transform var(--bt-transition),
        box-shadow var(--bt-transition),
        border-color var(--bt-transition);
}

.bt-discovery-card:hover,
.op-feed-card:hover {
    transform: translateY(-2px);
    border-color: var(--bt-primary-line);
    box-shadow: var(--bt-shadow-md);
}

.op-feed-card.is-trending,
.bt-discovery-card.is-trending {
    border-color: rgba(249, 115, 22, 0.14);
    box-shadow: 0 14px 32px rgba(249, 115, 22, 0.08);
}

.op-feed-card.is-expiring,
.bt-discovery-card.is-expiring {
    border-color: var(--bt-danger-line);
    box-shadow: 0 14px 32px rgba(220, 38, 38, 0.07);
}

.op-feed-card.is-featured,
.bt-discovery-card.is-featured {
    border-color: var(--bt-primary-line);
    box-shadow: var(--bt-shadow-blue);
}

/* ---------------------------------
   Side links / trending rows
--------------------------------- */
.op-side-link,
.bt-discovery-side-link {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: 0.9rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.op-side-link:last-child,
.bt-discovery-side-link:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.op-side-link:first-child,
.bt-discovery-side-link:first-child {
    padding-top: 0;
}

.op-side-link-title,
.bt-discovery-side-link-title {
    color: var(--bt-ink);
    font-weight: var(--bt-weight-black);
    line-height: 1.35;
    margin-bottom: 0.3rem;
}

.op-side-link-meta,
.bt-discovery-side-link-meta {
    color: var(--bt-muted);
    font-size: var(--bt-text-sm);
    line-height: 1.55;
}

.op-buzz-chip,
.bt-discovery-mini-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.55rem;
    border-radius: var(--bt-radius-pill);
    background: var(--bt-bg);
    border: 1px solid var(--bt-line);
    color: var(--bt-muted);
    font-size: var(--bt-text-xs);
    font-weight: var(--bt-weight-black);
    line-height: 1;
}

.op-trending-row,
.bt-discovery-ranked-row {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 0.75rem;
    align-items: start;
}

.op-trending-rank,
.bt-discovery-rank {
    width: 34px;
    height: 34px;
    border-radius: var(--bt-radius-sm);
    background: rgba(249, 115, 22, 0.10);
    color: #c2410c;
    border: 1px solid rgba(249, 115, 22, 0.16);
    font-weight: var(--bt-weight-black);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* ---------------------------------
   Search / filters
--------------------------------- */
.bt-discovery-filter-bar,
.op-filter-bar,
.ds-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    padding: var(--bt-space-4);
    border-radius: var(--bt-radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,250,252,.94));
    border: 1px solid var(--bt-line);
    box-shadow: var(--bt-shadow-sm);
}

.bt-discovery-filter-bar .form-control,
.bt-discovery-filter-bar .form-select,
.op-filter-bar .form-control,
.op-filter-bar .form-select,
.ds-filter-bar .form-control,
.ds-filter-bar .form-select {
    border-radius: var(--bt-radius-md);
    border-color: var(--bt-line-soft);
    min-height: 46px;
    font-weight: var(--bt-weight-medium);
}

/* ---------------------------------
   Mobile
--------------------------------- */
@media (max-width: 991.98px) {
    .bt-discovery-hero-row,
    .op-hero-tools-row,
    .ds-hero-row {
        grid-template-columns: 1fr;
    }

    .bt-discovery-hero-inner,
    .op-hero-inner,
    .op-social-hero-inner,
    .ds-hero {
        padding: 1rem;
    }

    .bt-discovery-title,
    .op-hero-title,
    .ds-hero-copy h1 {
        font-size: clamp(1.35rem, 6vw, 1.9rem);
    }

    .bt-discovery-panel-body,
    .op-soft-panel-body {
        padding: 1rem;
    }
}

@media (max-width: 575.98px) {
    .bt-discovery-panel,
    .op-soft-panel,
    .bt-discovery-card,
    .op-feed-card,
    .bt-discovery-hero,
    .op-hero,
    .op-social-hero,
    .ds-hero {
        border-radius: 20px;
    }

    .bt-discovery-filter-bar,
    .op-filter-bar,
    .ds-filter-bar {
        display: grid;
        grid-template-columns: 1fr;
    }

    .bt-discovery-chip-grid,
    .op-sidebar-chip-grid {
        gap: 0.45rem;
    }

    .bt-discovery-chip,
    .op-sidebar-chip,
    .ds-type-chip {
        font-size: 0.8rem;
        padding: 0.5rem 0.7rem;
    }
}

/* 
Opportunity Competition css
-------------------------------------------------
*/
.op-competition-card {
    min-height: 220px;
    display: grid;
    align-content: start;
    gap: .75rem;
    padding: 1rem;
    border-radius: 22px;
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    border: 1px solid rgba(15, 23, 42, .08);
    box-shadow: 0 18px 45px rgba(15, 23, 42, .07);
    color: #0f172a;
    text-decoration: none;
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.op-competition-card:hover {
    transform: translateY(-2px);
    border-color: rgba(37, 99, 235, .22);
    box-shadow: 0 24px 60px rgba(15, 23, 42, .11);
    color: #1d4ed8;
}

.op-competition-card h2 {
    font-size: 1.05rem;
    font-weight: 950;
    margin: 0;
}

.op-competition-card p {
    margin: 0;
    color: #64748b;
    font-size: .86rem;
    line-height: 1.45;
}

.op-competition-chip {
    width: max-content;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .28rem .6rem;
    border-radius: 999px;
    background: #fff7ed;
    color: #c2410c;
    font-size: .72rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.op-competition-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    font-size: .78rem;
    font-weight: 800;
    color: #475569;
}

.op-competition-meta span {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
}

.op-competition-prize {
    width: max-content;
    max-width: 100%;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .7rem;
    border-radius: 999px;
    background: #ecfdf5;
    color: #047857;
    font-size: .78rem;
    font-weight: 900;
}

.op-competition-entry-list {
    display: grid;
    gap: .6rem;
}

.op-competition-entry {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: .75rem;
    padding: .8rem .9rem;
    border-radius: 18px;
    background: #f8fafc;
    border: 1px solid rgba(15, 23, 42, .07);
    color: #0f172a;
    text-decoration: none;
}

.op-competition-entry:hover {
    color: #1d4ed8;
    border-color: rgba(37, 99, 235, .2);
    background: #eff6ff;
}

.op-competition-entry strong {
    font-weight: 950;
    color: #f97316;
}

.op-competition-entry span {
    display: grid;
    gap: .1rem;
}

.op-competition-entry b {
    font-size: .9rem;
}

.op-competition-entry small {
    color: #64748b;
    font-weight: 700;
}

.op-competition-entry em {
    font-style: normal;
    font-size: .78rem;
    font-weight: 900;
    color: #475569;
}

.op-competition-submit-btn {
    border-color: rgba(245, 158, 11, .28) !important;
    background: #fffbeb !important;
    color: #92400e !important;
    font-weight: 900;
}

.op-competition-submit-btn:hover {
    background: #fef3c7 !important;
    color: #78350f !important;
}

.op-competition-submit-dropdown {
    position: relative;
    z-index: 60;
}

.op-competition-submit-menu {
    min-width: 280px;
    border: 0;
    border-radius: 18px;
    box-shadow: 0 22px 55px rgba(15, 23, 42, .18);
    padding: .5rem;
    z-index: 99999;
    max-height: 320px;
    overflow-y: auto;
}

.op-competition-submit-item {
    display: grid;
    gap: .15rem;
    border-radius: 12px;
    font-weight: 900;
    white-space: normal;
}

.op-competition-submit-item span {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
}

.op-competition-submit-item small {
    color: #64748b;
    font-size: .72rem;
    font-weight: 700;
}

.op-feed-card:has(.op-competition-submit-dropdown .dropdown-menu.show) {
    z-index: 9999;
}

.op-competition-submit-dropdown .dropdown-menu.show {
    position: absolute !important;
    inset: auto auto 100% 0 !important;
    transform: translateY(-8px) !important;
}