/* ========================================================================
   ShopMCP — light theme
   Палитра: нейтральный фон, спокойный сине-фиолетовый акцент (indigo-600),
   приглушённые акценты для тегов и состояний.
   ======================================================================== */

:root {
    --bg:            #fafbfc;
    --bg-soft:       #f3f4f6;
    --surface:       #ffffff;
    --border:        #e4e6eb;
    --border-strong: #d3d6de;

    --text:          #0f172a;
    --text-soft:     #475569;
    --text-muted:    #94a3b8;

    --accent:        #4f46e5;       /* indigo-600 */
    --accent-hover:  #4338ca;
    --accent-soft:   #eef2ff;       /* indigo-50  */
    --accent-ring:   rgba(79,70,229,.18);

    --success:       #047857;
    --success-soft:  #ecfdf5;
    --warn:          #b45309;
    --warn-soft:     #fef3c7;
    --danger:        #b91c1c;
    --danger-soft:   #fef2f2;

    --shadow-sm:     0 1px 2px rgba(15, 23, 42, .04);
    --shadow-md:     0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .04);

    --radius-sm: 6px;
    --radius:    10px;
    --radius-lg: 14px;

    --font-sans:  -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI",
                  Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono:  "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.55;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------- Header / nav ---------- */

header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, .85);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}
header > * { display: flex; align-items: center; }
header {
    display: flex;
    justify-content: space-between;
    padding: .9rem 1.5rem;
    gap: 1.5rem;
}
header .logo {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.01em;
}
header .logo::before {
    content: "◇";
    color: var(--accent);
    margin-right: .45em;
    font-weight: 600;
}
header nav { gap: .25rem; }
header nav a {
    padding: .45rem .85rem;
    color: var(--text-soft);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: background .12s ease, color .12s ease;
}
header nav a:hover,
header nav a:focus-visible {
    color: var(--text);
    background: var(--bg-soft);
}

main {
    flex: 1;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 3rem;
}

footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: .9rem;
    background: var(--surface);
}

/* ---------- Typography ---------- */

h1, h2, h3 { letter-spacing: -0.012em; color: var(--text); }
h1 { font-size: 2rem; margin: 0 0 1.2rem; line-height: 1.2; }
h2 { font-size: 1.4rem; margin: 2rem 0 .9rem; }
h3 { font-size: 1.1rem; margin: 1.5rem 0 .6rem; }

p { margin: .6rem 0; color: var(--text); }
.muted { color: var(--text-muted); font-size: .9rem; }

/* Reset visited so links не превращаются в фиолетовые */
a { color: var(--accent); text-decoration: none; transition: color .12s ease; }
a:visited { color: var(--accent); }
a:hover, a:focus-visible { color: var(--accent-hover); text-decoration: underline; text-underline-offset: 3px; }

code, pre {
    font-family: var(--font-mono);
    font-size: .88em;
}
code {
    background: var(--bg-soft);
    color: var(--text);
    padding: .12em .4em;
    border-radius: 4px;
    border: 1px solid var(--border);
}
pre {
    background: #0f172a;
    color: #f1f5f9;
    padding: 1rem 1.1rem;
    border-radius: var(--radius);
    overflow-x: auto;
    border: 1px solid #1e293b;
    font-size: .85em;
    line-height: 1.55;
}
pre code {
    background: none;
    border: none;
    padding: 0;
    color: inherit;
}

hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 1.5rem 0;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .35rem;
    padding: .55rem 1.05rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-strong);
    background: var(--surface);
    color: var(--text);
    font-size: .92rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: background .12s, border-color .12s, color .12s, box-shadow .12s, transform .04s;
    box-shadow: var(--shadow-sm);
}
.btn:hover {
    border-color: var(--text-muted);
    background: var(--bg-soft);
    text-decoration: none;
    color: var(--text);
}
.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--accent-ring);
    border-color: var(--accent);
}
.btn:active { transform: translateY(1px); }
.btn[disabled],
.btn:disabled {
    opacity: .55;
    cursor: not-allowed;
    pointer-events: none;
}

.btn.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn.primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: #fff;
}
.btn.primary:visited { color: #fff; }

.btn + .btn { margin-left: .4rem; }
.btn.danger {
    color: var(--danger);
    border-color: rgba(185, 28, 28, .25);
    background: var(--surface);
}
.btn.danger:hover {
    background: var(--danger-soft);
    border-color: var(--danger);
}

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

.hero {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}
.hero h1 {
    font-size: clamp(2rem, 4vw, 2.6rem);
    line-height: 1.15;
    margin: 0 0 .8rem;
}
.hero p {
    color: var(--text-soft);
    font-size: 1.1rem;
    max-width: 640px;
    margin: 0;
}
.hero .actions { margin-top: 1.6rem; display: flex; flex-wrap: wrap; gap: .6rem; }
.hero .actions .btn { margin: 0; }

.endpoint {
    margin-top: 2rem;
    padding: 1.4rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.endpoint h2 { margin-top: 0; }
.endpoint code {
    display: inline-block;
    padding: .35rem .7rem;
    font-size: .95em;
    background: var(--accent-soft);
    border-color: rgba(79,70,229,.2);
    color: var(--accent-hover);
    font-weight: 500;
}

/* ---------- Cards / forms ---------- */

.form-card {
    max-width: 460px;
    margin: 2rem auto;
    padding: 2rem 2rem 1.6rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.form-card.wide { max-width: 720px; }

.form-card h1 { font-size: 1.5rem; margin-bottom: .25rem; }

.form-card label {
    display: block;
    margin: 1rem 0 0;
    font-size: .88rem;
    font-weight: 500;
    color: var(--text-soft);
}
.form-card label.check {
    font-weight: 400;
    color: var(--text);
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    margin: .35rem 1rem .35rem 0;
}

.form-card input[type="text"],
.form-card input[type="email"],
.form-card input[type="password"],
.form-card input[type="url"],
.form-card input[type="number"],
.form-card textarea {
    width: 100%;
    margin-top: .35rem;
    padding: .6rem .75rem;
    font-family: inherit;
    font-size: .95rem;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    transition: border-color .12s, box-shadow .12s;
}
.form-card input:focus,
.form-card textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-ring);
}
.form-card input::placeholder,
.form-card textarea::placeholder {
    color: var(--text-muted);
}

.form-card fieldset {
    margin-top: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .6rem 1rem 1rem;
    background: var(--bg-soft);
}
.form-card fieldset legend {
    padding: 0 .35rem;
    font-size: .82rem;
    font-weight: 600;
    color: var(--text-soft);
    text-transform: uppercase;
    letter-spacing: .04em;
}

.form-card .err,
.alert.err {
    margin: .8rem 0;
    padding: .65rem .9rem;
    background: var(--danger-soft);
    color: var(--danger);
    border: 1px solid rgba(185,28,28,.2);
    border-radius: var(--radius-sm);
    font-size: .92rem;
}

.form-card form button { margin-top: 1.4rem; }

/* ---------- Account index ---------- */

.account h1 { margin-bottom: .25rem; }
.account .panel {
    margin-top: 1.5rem;
    padding: 1.4rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.account .panel h2 { margin-top: 0; }
.account form { margin-top: 1rem; }

/* ---------- API key ---------- */

.api-key-card {
    margin: 1rem 0 1.5rem;
    padding: 1rem 1.2rem;
    background: var(--warn-soft);
    border: 1px solid rgba(180, 83, 9, .25);
    border-radius: var(--radius);
    border-left: 4px solid var(--warn);
}
.api-key-card p { color: var(--warn); margin: 0 0 .5rem; }
.api-key-card pre {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    margin: .6rem 0 0;
}

/* ---------- Tables ---------- */

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 1rem 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.data-table th, .data-table td {
    text-align: left;
    padding: .7rem 1rem;
    border-bottom: 1px solid var(--border);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table th {
    background: var(--bg-soft);
    color: var(--text-soft);
    font-weight: 500;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}
.data-table tr:hover td {
    background: var(--bg-soft);
}
.data-table a { font-weight: 500; }

/* ---------- Tags ---------- */

.tag {
    display: inline-block;
    padding: .15rem .55rem;
    margin-right: .3rem;
    background: var(--accent-soft);
    color: var(--accent-hover);
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 500;
    border: 1px solid rgba(79,70,229,.15);
}
.tag.success { background: var(--success-soft); color: var(--success); border-color: rgba(4,120,87,.15); }
.tag.warn    { background: var(--warn-soft);    color: var(--warn);    border-color: rgba(180,83,9,.15); }
.tag.muted   { background: var(--bg-soft);      color: var(--text-soft); border-color: var(--border); }

/* ---------- Docs ---------- */

main h1 + p, main h2 + p { color: var(--text-soft); }
main ul, main ol { padding-left: 1.4rem; }
main ul li, main ol li { margin: .35rem 0; }

details {
    margin: 1.5rem 0;
    padding: .6rem 1rem;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
details summary {
    cursor: pointer;
    font-weight: 500;
    color: var(--text-soft);
    user-select: none;
}
details[open] summary { color: var(--text); margin-bottom: .8rem; }
details pre { margin-top: .5rem; }

/* ---------- Misc ---------- */

::selection { background: var(--accent-ring); color: var(--text); }

/* ---------- Адаптив. Таблицы скроллятся горизонтально, чтобы не ломать layout. ---------- */

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 1rem -0.25rem;
    padding: 0 0.25rem;
}
.table-scroll .data-table { margin: 0; min-width: 540px; }

/* Tablet ≤ 820px */
@media (max-width: 820px) {
    main { max-width: 100%; padding: 1.75rem 1.1rem 2.5rem; }
    h1 { font-size: 1.7rem; }
    h2 { font-size: 1.25rem; margin-top: 1.6rem; }
    .form-card.wide { max-width: 100%; }
    .endpoint { padding: 1.1rem 1.15rem; }
    pre { font-size: .82em; }
}

/* Mobile ≤ 600px */
@media (max-width: 600px) {
    body { font-size: 14.5px; }
    main { padding: 1.25rem 0.9rem 2rem; }

    header {
        padding: .7rem .9rem;
        gap: .4rem;
        flex-wrap: wrap;
    }
    header .logo { font-size: 1rem; flex: 0 0 auto; }
    header nav {
        flex: 1 1 auto;
        justify-content: flex-end;
        flex-wrap: wrap;
        gap: 0;
    }
    header nav a {
        padding: .35rem .55rem;
        font-size: .85rem;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.15rem; }

    .hero { padding: 1.5rem 0 1.2rem; }
    .hero p { font-size: .98rem; }
    .hero .actions { gap: .5rem; }
    .hero .actions .btn { width: 100%; justify-content: center; }

    .endpoint { padding: 1rem 1rem; border-radius: var(--radius); }
    .endpoint code { display: block; word-break: break-all; padding: .55rem .65rem; }

    .form-card {
        margin: 1.25rem auto;
        padding: 1.25rem 1.1rem 1rem;
        border-radius: var(--radius);
    }
    .form-card form button { width: 100%; }
    .form-card .btn + .btn { margin-left: 0; margin-top: .5rem; width: 100%; }

    .account .panel { padding: 1.1rem 1.1rem; }
    .account .panel .btn { width: 100%; margin: .25rem 0; }

    pre {
        padding: .8rem .9rem;
        font-size: .78em;
        border-radius: var(--radius-sm);
    }

    /* Таблицы — горизонтальный скролл */
    .data-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }
    .data-table thead, .data-table tbody, .data-table tr { display: table; width: 100%; table-layout: auto; }
    .data-table th, .data-table td { padding: .55rem .7rem; }

    .api-key-card { padding: .85rem .95rem; }
    .api-key-card pre { font-size: .75em; }

    details { padding: .55rem .8rem; }
}

/* Очень маленькие телефоны ≤ 380px */
@media (max-width: 380px) {
    main { padding: 1rem 0.7rem 1.8rem; }
    header { padding: .6rem .7rem; }
    header nav a { padding: .3rem .4rem; font-size: .82rem; }
    h1 { font-size: 1.35rem; }
    .form-card { padding: 1rem .9rem; }
    .btn { font-size: .88rem; padding: .5rem .8rem; }
}