/* ============================================================
   Stack & Blast — Website Stylesheet
   Dark theme matching the game aesthetic (#1E272E + Coral #E17055)
   ============================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-dark: #1E272E;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --coral: #E17055;
    --coral-dark: #C0392B;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.45);
    --border: rgba(255, 255, 255, 0.08);
    --radius: 12px;
    --max-width: 900px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---------- Typography ---------- */
h1, h2, h3 {
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 6vw, 3.6rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); margin-bottom: 1.5rem; text-align: center; }
h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }

p { color: var(--text-secondary); }

a {
    color: var(--coral);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover { color: #F39C7E; }

/* ---------- Layout ---------- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

main { flex: 1; }

/* ---------- Navigation ---------- */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(30, 39, 46, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.9rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}
.nav-brand:hover { color: var(--coral); }

.nav-links {
    display: flex;
    gap: 1.8rem;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); }

/* ---------- Hero ---------- */
.hero {
    padding: 5rem 1.5rem 4rem;
    text-align: center;
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero h1 { margin-bottom: 1rem; }
.accent { color: var(--coral); }

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.2rem;
}

.hero-description {
    font-size: 1.05rem;
    max-width: 640px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 0.85rem 2rem;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1rem;
    transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(225, 112, 85, 0.3);
}

.btn-primary {
    background: var(--coral);
    color: #fff;
}
.btn-primary:hover { color: #fff; background: #D4604A; }

/* ---------- Features Section ---------- */
.features {
    padding: 2rem 0 4rem;
}

.features h2 {
    margin-top: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: background 0.2s;
}
.feature-card:hover { background: var(--bg-card-hover); }

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: 0.75rem;
}

.feature-card h3 { color: var(--text-primary); }
.feature-card p { font-size: 0.92rem; }

/* ---------- Links Section ---------- */
.links-section {
    padding: 3rem 0 4rem;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.link-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: background 0.2s, border-color 0.2s;
}
.link-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--coral);
}
.link-card h3 { color: var(--text-primary); margin-bottom: 0.4rem; }
.link-card p { font-size: 0.9rem; }

/* ---------- Page Content (Privacy, Terms, FAQ) ---------- */
.page-header {
    padding: 3.5rem 1.5rem 2rem;
    text-align: center;
    max-width: var(--max-width);
    margin: 0 auto;
}

.page-header p {
    margin-top: 0.6rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.page-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

.page-content h2 {
    text-align: left;
    font-size: 1.4rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.page-content h2:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.page-content h3 {
    font-size: 1.1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--coral);
}

.page-content p {
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.page-content ul, .page-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.page-content li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.page-content li strong {
    color: var(--text-primary);
}

.page-content a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ---------- FAQ Accordion ---------- */
.faq-section {
    margin-bottom: 2rem;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.6rem;
    overflow: hidden;
    background: var(--bg-card);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    padding: 1.1rem 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-family: inherit;
    transition: background 0.2s;
}
.faq-question:hover { background: var(--bg-card-hover); }

.faq-chevron {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    transition: transform 0.25s;
    color: var(--text-muted);
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 600px;
}

.faq-answer-inner {
    padding: 0 1.3rem 1.2rem;
    font-size: 0.93rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-answer-inner p { margin-bottom: 0.6rem; }
.faq-answer-inner p:last-child { margin-bottom: 0; }

/* ---------- Tables ---------- */
.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.page-content th, .page-content td {
    text-align: left;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--border);
}

.page-content th {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.page-content td {
    color: var(--text-secondary);
}

/* ---------- Footer ---------- */
.footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: auto;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.footer-links a:hover { color: var(--text-primary); }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .hero { padding: 3rem 1.5rem 2.5rem; }

    .feature-grid, .links-grid {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .nav-links { gap: 1rem; }
}