:root {
    --bg: #f5efe6;
    --bg-2: #ebe2d3;
    --surface: rgba(255, 250, 243, 0.95);
    --surface-strong: #fffdf8;
    --border: rgba(23, 41, 52, 0.1);
    --text: #173140;
    --text-muted: #445a66;
    --text-soft: #5c707a;
    --accent: #2f6c6d;
    --accent-strong: #1f5254;
    --accent-soft: rgba(47, 108, 109, 0.12);
    --accent-warm: #b7792b;
    --danger: #c85d5d;
    --shadow: 0 18px 42px rgba(23, 41, 52, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", "Segoe UI", "Helvetica Neue", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(183, 121, 43, 0.16), transparent 30%),
        radial-gradient(circle at top right, rgba(47, 108, 109, 0.14), transparent 34%),
        linear-gradient(135deg, var(--bg) 0%, var(--bg-2) 100%);
}

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

.page-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid rgba(23, 49, 64, 0.08);
    background: rgba(255, 250, 243, 0.8);
    backdrop-filter: blur(16px);
}

.container {
    width: min(100%, 980px);
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding-top: 0.95rem;
    padding-bottom: 0.95rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    min-width: 0;
}

.brand-icon {
    display: grid;
    place-items: center;
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    font-size: 1.4rem;
    line-height: 1;
    background: linear-gradient(135deg, var(--accent-soft), rgba(183, 121, 43, 0.17));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.brand-title {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.brand-subtitle {
    margin: 0.18rem 0 0;
    color: var(--text-soft);
    font-size: 0.78rem;
    line-height: 1.35;
}

.live-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.46rem 0.82rem;
    border-radius: 9999px;
    border: 1px solid rgba(47, 108, 109, 0.18);
    background: rgba(47, 108, 109, 0.08);
    color: var(--accent-strong);
    font-size: 0.76rem;
    font-weight: 700;
    white-space: nowrap;
}

.header-actions {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.header-doc-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.48rem 0.88rem;
    border-radius: 9999px;
    border: 1px solid rgba(47, 108, 109, 0.26);
    background: linear-gradient(135deg, rgba(46, 106, 109, 0.14) 0%, rgba(183, 121, 43, 0.2) 100%);
    color: var(--accent-strong);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    white-space: nowrap;
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.header-doc-link:hover {
    transform: translateY(-1px);
    border-color: rgba(47, 108, 109, 0.48);
    box-shadow: 0 10px 20px rgba(47, 108, 109, 0.14);
}

.header-doc-placeholder {
    visibility: hidden;
    pointer-events: none;
    user-select: none;
}

.live-dot {
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 9999px;
    background: #3fae82;
    box-shadow: 0 0 0 0 rgba(63, 174, 130, 0.45);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(63, 174, 130, 0.45); }
    70% { box-shadow: 0 0 0 10px rgba(63, 174, 130, 0); }
    100% { box-shadow: 0 0 0 0 rgba(63, 174, 130, 0); }
}

.main-content {
    flex: 1;
    padding-top: 1.35rem;
    padding-bottom: 2rem;
}

.intro-card,
.section-card {
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.intro-card {
    margin-bottom: 1rem;
    border-radius: 1.35rem;
    padding: 1.1rem 1.25rem;
}

.intro-title {
    margin: 0;
    font-size: 1.42rem;
    font-weight: 800;
    color: var(--accent-strong);
}

.intro-text {
    margin: 0.4rem 0 0;
    color: var(--text-muted);
    line-height: 1.55;
}

.section-stack {
    display: grid;
    gap: 1rem;
}

.section-card {
    overflow: hidden;
    border-radius: 1.35rem;
}

.section-head {
    margin: 0;
    padding: 0.9rem 1.25rem;
    font-size: 0.86rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    border-bottom: 1px solid rgba(23, 41, 52, 0.08);
    background: rgba(47, 108, 109, 0.06);
}

.section-body {
    padding: 0.45rem 1.25rem 1rem;
}

.step-list {
    margin: 0.2rem 0 0;
    padding-left: 1.2rem;
    color: var(--text-muted);
    line-height: 1.55;
}

.step-list li {
    margin: 0.55rem 0;
}

.hint {
    margin-top: 0.8rem;
    padding: 0.7rem 0.9rem;
    border-radius: 0.8rem;
    background: rgba(47, 108, 109, 0.08);
    border: 1px solid rgba(47, 108, 109, 0.16);
    color: var(--text-muted);
    line-height: 1.5;
}

.row {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 0.75rem;
    padding: 0.56rem 0;
    border-top: 1px solid rgba(23, 41, 52, 0.08);
}

.row:first-of-type {
    border-top: none;
}

.label {
    color: var(--text-soft);
    font-weight: 700;
}

.value {
    color: var(--text-muted);
    line-height: 1.45;
}

.footer-actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.7rem 1rem;
    border-radius: 9999px;
    border: 1px solid rgba(47, 108, 109, 0.2);
    background: rgba(255, 255, 255, 0.74);
    color: var(--accent-strong);
    font-weight: 700;
    font-size: 0.86rem;
    transition: transform 180ms ease, border-color 180ms ease, color 180ms ease;
}

.btn:hover {
    transform: translateY(-1px);
    border-color: var(--accent);
    color: var(--accent);
}

.small {
    margin-top: 1rem;
    color: var(--text-soft);
    font-size: 0.86rem;
    line-height: 1.5;
}

.site-footer {
    border-top: 1px solid rgba(23, 41, 52, 0.08);
    background: rgba(255, 250, 243, 0.6);
    padding: 1rem;
    text-align: center;
    color: var(--text-soft);
    font-size: 0.8rem;
}

@media (min-width: 768px) {
    .container {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    .brand-title {
        font-size: 1.32rem;
    }

    .main-content {
        padding-top: 1.9rem;
        padding-bottom: 2.4rem;
    }
}

@media (max-width: 767px) {
    .header-inner {
        align-items: center;
        gap: 0.6rem;
        padding-top: 0.72rem;
        padding-bottom: 0.72rem;
    }

    .brand {
        width: 100%;
        justify-content: center;
        gap: 0.6rem;
    }

    .brand-icon {
        width: 2.45rem;
        height: 2.45rem;
        font-size: 1.15rem;
    }

    .brand-title {
        font-size: 1.02rem;
    }

    .brand-subtitle {
        display: block;
    }

    .header-actions {
        width: 100%;
        justify-content: center;
    }

    .live-badge {
        padding: 0.34rem 0.66rem;
        font-size: 0.7rem;
    }
}

@media (max-width: 700px) {

    .row {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }

    .intro-card,
    .section-body,
    .section-head {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}