:root {
    --ink: hsl(222, 35%, 9%);
    --ink-soft: hsl(222, 22%, 22%);
    --cream: hsl(42, 38%, 94%);
    --cream-deep: hsl(38, 30%, 89%);
    --brand: hsl(221, 83%, 53%);
    --brand-soft: hsl(221, 100%, 96%);
    --border: hsl(36, 18%, 82%);
    --radius: 1rem;
    --font-serif: 'Fraunces', ui-serif, Georgia, serif;
    --font-sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
}

* { 
    box-sizing: border-box; 
    transition: all 0.25s cubic-bezier(0.65, 0, 0.35, 1); 
}

body {
    font-family: var(--font-sans);
    background-color: #ede8df;
    background-image: 
        radial-gradient(at 0% 100%, rgba(243, 138, 108, 0.3) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(182, 202, 233, 0.4) 0px, transparent 45%);
    background-attachment: fixed;
    color: var(--ink);
    min-height: 100vh;
    margin: 0;
    padding: 40px 20px;
    display: flex;
    justify-content: center;
    line-height: 1.6;
}

.hub-container {
    width: 100%;
    max-width: 820px;
}

/* ═══════════════════════════════
   HEADER & LOGO
   ═══════════════════════════════ */

.brand-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--ink);
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
}

.logo-svg {
    flex-shrink: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.brand-badge {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: var(--cream-deep);
    color: var(--ink-soft);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

.back-link {
    display: none;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    color: var(--ink-soft);
    text-decoration: none;
    font-weight: 500;
}

.back-link:hover {
    color: var(--brand);
}

@media (min-width: 640px) {
    .back-link {
        display: flex;
    }
}

/* ═══════════════════════════════
   HERO
   ═══════════════════════════════ */

.hero-section {
    margin-bottom: 32px;
}

h1 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 500;
    margin: 0 0 12px 0;
    letter-spacing: -0.025em;
}

p.subtitle {
    color: var(--ink-soft);
    font-size: 1.05rem;
    margin: 0;
    max-width: 60ch;
}

/* ═══════════════════════════════
   CONTROLS: SEARCH & FILTERS
   ═══════════════════════════════ */

.controls-wrapper {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

@media (min-width: 640px) {
    .controls-wrapper {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 360px;
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) * 0.6);
    background: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    outline: none;
    color: var(--ink);
}

.search-box input:focus {
    background: #ffffff;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px var(--brand-soft);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.4;
    pointer-events: none;
}

.category-pills {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
}

.cat-btn {
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.5);
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ink-soft);
    cursor: pointer;
    white-space: nowrap;
}

.cat-btn:hover,
.cat-btn.active {
    background: var(--ink);
    color: var(--cream);
    border-color: var(--ink);
}

/* ═══════════════════════════════
   TOOL CARDS
   ═══════════════════════════════ */

.tools-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 48px;
}

.tool-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-decoration: none;
    color: var(--ink);
    box-shadow: 0 10px 25px -10px rgba(15, 23, 42, 0.04);
}

@media (min-width: 640px) {
    .tool-card {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

/* Live card hover */
.tool-card.live:hover {
    transform: translateY(-2px);
    border-color: var(--brand);
    background: rgba(255, 255, 255, 0.98);
}

/* Upcoming card styling */
.tool-card.upcoming {
    opacity: 0.65;
    cursor: default;
}

.tool-card.upcoming:hover {
    opacity: 0.8;
}

.tool-card-main {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

/* Tool Logo */
.tool-logo {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: calc(var(--radius) * 0.5);
    background: var(--brand-soft);
    border: 1px solid rgba(37, 99, 235, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.tool-logo.muted {
    background: var(--cream-deep);
    border-color: var(--border);
}

.tool-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Badge Row */
.badge-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.badge {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--brand-soft);
    color: var(--brand);
}

.badge.muted {
    background: var(--cream-deep);
    color: var(--ink-soft);
}

/* Live indicator */
.status-live {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #16a34a;
}

.live-dot {
    width: 6px;
    height: 6px;
    background: #16a34a;
    border-radius: 50%;
    display: inline-block;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.status-upcoming {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-soft);
    opacity: 0.6;
}

.tool-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 500;
    margin: 0 0 4px 0;
}

.tool-desc {
    font-size: 0.875rem;
    color: var(--ink-soft);
    margin: 0;
    max-width: 50ch;
}

.launch-btn {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--ink);
    white-space: nowrap;
}

.launch-btn.muted {
    color: var(--ink-soft);
    opacity: 0.6;
}

/* ═══════════════════════════════
   CTA SECTION
   ═══════════════════════════════ */

.cta-section {
    margin-bottom: 48px;
}

.cta-content {
    background: var(--ink);
    color: var(--cream);
    border-radius: var(--radius);
    padding: 36px 32px;
    text-align: center;
}

.cta-content h2 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    margin: 0 0 12px 0;
    color: var(--cream);
}

.cta-content p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0 0 24px 0;
    max-width: 50ch;
    margin-left: auto;
    margin-right: auto;
}

.cta-btn {
    display: inline-block;
    background: #ffffff;
    color: var(--ink);
    padding: 12px 28px;
    border-radius: calc(var(--radius) * 0.6);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.cta-btn:hover {
    background: var(--brand-soft);
    color: var(--brand);
}

/* ═══════════════════════════════
   FAQ SECTION
   ═══════════════════════════════ */

.faq-section {
    border-top: 1px solid var(--border);
    padding-top: 48px;
    margin-top: 20px;
    margin-bottom: 48px;
}

.faq-section h2 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    margin: 0 0 24px 0;
}

.faq-item {
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) * 0.75);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 18px 20px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ink);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 20px;
    font-size: 0.9rem;
    color: var(--ink-soft);
}

.faq-item.open .faq-answer {
    max-height: 200px;
    padding: 0 20px 18px 20px;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

.no-results {
    text-align: center;
    padding: 40px;
    color: var(--ink-soft);
    font-size: 0.95rem;
    display: none;
}

/* ═══════════════════════════════
   FOOTER
   ═══════════════════════════════ */

.hub-footer {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--ink-soft);
}

@media (min-width: 640px) {
    .hub-footer {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-left a,
.footer-right a {
    color: var(--ink-soft);
    text-decoration: none;
    font-weight: 500;
}

.footer-left a:hover,
.footer-right a:hover {
    color: var(--brand);
}