:root {
    --bg: #f5f5f3;
    --surface: #ffffff;
    --text: #171717;
    --muted: #6f6f6a;
    --line: #e7e7e2;
    --accent: #111111;
    --danger-bg: #fff0f0;
    --danger: #9f2626;
    --success-bg: #eef9f0;
    --success: #216e35;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }

.brand {
    font-weight: 900;
    letter-spacing: .16em;
    font-size: .95rem;
}

.brand-link { white-space: nowrap; }

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-card {
    width: min(100%, 460px);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 34px;
    box-shadow: 0 14px 40px rgba(0,0,0,.05);
}

h1, h2, p { margin-top: 0; }

h1 {
    margin-top: 24px;
    font-size: clamp(2rem, 5vw, 3rem);
    line-height: 1;
}

.muted { color: var(--muted); }
.small { font-size: .88rem; }

label {
    display: grid;
    gap: 8px;
    margin-top: 18px;
    font-weight: 650;
    font-size: .9rem;
}

input, select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 13px 14px;
    background: #fff;
}

input:focus, select:focus {
    outline: 2px solid #171717;
    outline-offset: 2px;
}

button, .button, .button-link {
    border: 0;
    border-radius: 10px;
    padding: 12px 16px;
    background: var(--accent);
    color: #fff;
    font-weight: 750;
    line-height: 1.1;
    text-decoration: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

button:hover, .button:hover, .button-link:hover {
    transform: translateY(-1px);
}

button:focus-visible, .button:focus-visible, .button-link:focus-visible {
    outline: 2px solid #171717;
    outline-offset: 3px;
}

.auth-card button { width: 100%; margin-top: 24px; }

button.secondary, .button.secondary {
    background: #fff;
    color: #171717;
    border: 1px solid var(--line);
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.02);
}

button.secondary:hover, .button.secondary:hover {
    background: #f7f7f4;
    border-color: #c9c9c1;
}

.alert, .success {
    margin: 20px 0;
    padding: 12px 14px;
    border-radius: 10px;
}

.alert { background: var(--danger-bg); color: var(--danger); }
.success { background: var(--success-bg); color: var(--success); }

.topbar {
    min-height: 72px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 34px;
    padding: 0 5vw;
}

.nav {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: .92rem;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 54px 0;
}

.container.narrow {
    width: min(720px, calc(100% - 40px));
}

.hero { margin-bottom: 32px; }

.eyebrow {
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .14em;
}

.row-between {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.stats article,
.panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
}

.stats strong {
    display: block;
    font-size: 2rem;
}

.stats span { color: var(--muted); }

.panel { margin-top: 20px; }

.list {
    display: grid;
    margin-top: 14px;
}

.list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 17px 0;
    border-top: 1px solid var(--line);
}

.list-item:first-child { border-top: 0; }

.list-item strong,
.list-item span {
    display: block;
}

.list-item div span {
    color: var(--muted);
    margin-top: 4px;
    font-size: .88rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 9px;
    border-radius: 999px;
    background: #f0f0ed;
    font-size: .78rem;
    text-transform: capitalize;
}

.status-connected { background: var(--success-bg); color: var(--success); }
.status-error { background: var(--danger-bg); color: var(--danger); }

.empty-state {
    padding: 28px 0;
    color: var(--muted);
}

.connection-grid {
    display: grid;
    gap: 14px;
    margin-top: 16px;
}

.connection-card {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px;
}

.connection-card p {
    margin: 6px 0 0;
}

.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 18px;
}

@media (max-width: 760px) {
    .stats { grid-template-columns: repeat(2, 1fr); }
    .auth-card { padding: 26px 20px; }
    .topbar {
        grid-template-columns: 1fr auto;
        gap: 14px;
    }
    .nav {
        grid-column: 1 / -1;
        order: 3;
        padding-bottom: 14px;
    }
    .row-between {
        flex-direction: column;
        align-items: stretch;
    }
}


/* =========================================================
   KLENAM UI FOUNDATION v1 · v0.6.0
   Shared application shell and backward-compatible components.
   ========================================================= */

:root {
    --k-ink: #101114;
    --k-ink-soft: #24262b;
    --k-paper: #f4f5f2;
    --k-surface: #ffffff;
    --k-surface-soft: #fafaf8;
    --k-line: #e2e4df;
    --k-line-strong: #cfd2cb;
    --k-muted: #6b7069;
    --k-accent: #2f6fed;
    --k-accent-soft: #edf3ff;
    --k-success: #176b3a;
    --k-success-soft: #edf8f1;
    --k-danger: #a12b2b;
    --k-danger-soft: #fff0f0;
    --k-warning: #8a5a00;
    --k-warning-soft: #fff7df;
    --k-radius-sm: 10px;
    --k-radius-md: 14px;
    --k-radius-lg: 20px;
    --k-shadow: 0 10px 30px rgba(16,17,20,.045);
    --k-shell: 1280px;

    --bg: var(--k-paper);
    --surface: var(--k-surface);
    --text: var(--k-ink);
    --muted: var(--k-muted);
    --line: var(--k-line);
    --accent: var(--k-ink);
}

html { background: var(--k-paper); }
body {
    min-height: 100vh;
    background:
        radial-gradient(circle at 80% -10%, rgba(47,111,237,.055), transparent 28rem),
        var(--k-paper);
    color: var(--k-ink);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

::selection { background: #dce7ff; color: var(--k-ink); }

a { transition: color 140ms ease, opacity 140ms ease; }
a:hover { color: var(--k-accent); }

.k-shellbar {
    position: sticky;
    top: 0;
    z-index: 100;
    min-height: 76px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 28px;
    padding: 0 max(24px, calc((100vw - var(--k-shell)) / 2));
    background: rgba(255,255,255,.92);
    border-bottom: 1px solid rgba(226,228,223,.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.k-brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    color: var(--k-ink);
    font-weight: 900;
    letter-spacing: .17em;
    font-size: .88rem;
}
.k-brand:hover { color: var(--k-ink); }
.k-brand-mark {
    width: 31px;
    height: 31px;
    border-radius: 9px;
    display: grid;
    place-items: center;
    background: var(--k-ink);
    color: #fff;
    font-size: .72rem;
    letter-spacing: -.02em;
    box-shadow: 0 5px 14px rgba(16,17,20,.12);
}
.k-brand-word { white-space: nowrap; }

.k-primary-nav {
    display: flex;
    align-items: center;
    gap: 5px;
}
.k-primary-nav a {
    color: #555a54;
    font-size: .9rem;
    font-weight: 650;
    padding: 10px 13px;
    border-radius: 10px;
}
.k-primary-nav a:hover {
    color: var(--k-ink);
    background: #f4f5f2;
}
.k-primary-nav a.is-active {
    color: var(--k-ink);
    background: #eef0ec;
    box-shadow: inset 0 0 0 1px #e4e6e1;
}

.k-shell-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}
.k-shell-actions form { margin: 0; }
.k-shell-actions .secondary {
    min-height: 40px;
    padding: 10px 14px;
}

.k-mobile-nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    background: #fff;
    color: var(--k-ink);
    border: 1px solid var(--k-line);
}
.k-mobile-nav-toggle span,
.k-mobile-nav-toggle::before,
.k-mobile-nav-toggle::after {
    content: "";
    display: block;
    width: 17px;
    height: 2px;
    margin: 3px auto;
    border-radius: 99px;
    background: currentColor;
}

.container {
    width: min(var(--k-shell), calc(100% - 48px));
    padding: 48px 0 72px;
}
.container.narrow { width: min(760px, calc(100% - 48px)); }

.hero {
    position: relative;
    margin-bottom: 30px;
    padding-top: 2px;
}
.hero h1 {
    max-width: 980px;
    margin: 14px 0 14px;
    font-size: clamp(2.25rem, 4.4vw, 4rem);
    line-height: .98;
    letter-spacing: -.045em;
}
.hero > .muted,
.hero div > .muted {
    max-width: 850px;
    font-size: 1.02rem;
    line-height: 1.7;
}

.eyebrow {
    margin-bottom: 0;
    color: #4f5550;
    font-size: .72rem;
    line-height: 1.3;
    font-weight: 850;
    letter-spacing: .16em;
    text-transform: uppercase;
}

h2 {
    margin: 7px 0 10px;
    font-size: clamp(1.35rem, 2vw, 1.7rem);
    line-height: 1.15;
    letter-spacing: -.025em;
}
h3 { letter-spacing: -.015em; }

.panel,
.stats article {
    border-color: var(--k-line);
    box-shadow: var(--k-shadow);
}
.panel {
    margin-top: 18px;
    border-radius: var(--k-radius-lg);
    padding: 26px;
}
.stats { gap: 12px; }
.stats article {
    min-height: 126px;
    border-radius: var(--k-radius-md);
    padding: 21px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}
.stats strong {
    font-size: clamp(1.8rem, 3vw, 2.45rem);
    line-height: 1;
    letter-spacing: -.04em;
}
.stats span {
    margin-top: 8px;
    font-size: .86rem;
}

button, .button, .button-link {
    min-height: 42px;
    border-radius: var(--k-radius-sm);
    padding: 11px 15px;
    font-size: .88rem;
    font-weight: 760;
    box-shadow: 0 1px 1px rgba(0,0,0,.04);
}
button:hover, .button:hover, .button-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 14px rgba(16,17,20,.09);
    color: #fff;
}
button.secondary:hover, .button.secondary:hover { color: var(--k-ink); }

input, select, textarea {
    border-color: var(--k-line-strong);
    border-radius: var(--k-radius-sm);
    background: #fff;
    min-height: 44px;
}
textarea { width: 100%; padding: 13px 14px; font: inherit; }
input:focus, select:focus, textarea:focus {
    border-color: var(--k-accent);
    outline: 3px solid rgba(47,111,237,.13);
    outline-offset: 0;
}

.alert, .success, .error {
    border-radius: var(--k-radius-md);
    padding: 14px 16px;
    border: 1px solid transparent;
    line-height: 1.5;
}
.alert, .error { background: var(--k-danger-soft); color: var(--k-danger); border-color: #f4dada; }
.success { background: var(--k-success-soft); color: var(--k-success); border-color: #d6ecdf; }

.badge {
    gap: 5px;
    border: 1px solid #e1e3de;
    background: #f3f4f1;
    color: #555b55;
    font-size: .7rem;
    font-weight: 780;
    letter-spacing: .04em;
}
.status-connected { background: var(--k-success-soft); color: var(--k-success); border-color: #d6ecdf; }
.status-error { background: var(--k-danger-soft); color: var(--k-danger); border-color: #f4dada; }

.list-item {
    border-color: var(--k-line);
    border-radius: 10px;
    padding-left: 8px;
    padding-right: 8px;
    transition: background 140ms ease, transform 140ms ease;
}
a.list-item:hover {
    background: var(--k-surface-soft);
    color: var(--k-ink);
    transform: translateX(2px);
}

.connection-card {
    border-color: var(--k-line);
    border-radius: var(--k-radius-md);
    background: var(--k-surface-soft);
}

.empty-state {
    margin-top: 12px;
    padding: 28px;
    border: 1px dashed var(--k-line-strong);
    border-radius: var(--k-radius-md);
    background: var(--k-surface-soft);
}

.row-between { align-items: center; }

.k-section-rule {
    height: 1px;
    background: var(--k-line);
    margin: 24px 0;
}

@media (max-width: 820px) {
    .k-shellbar {
        grid-template-columns: 1fr auto auto;
        gap: 10px;
        min-height: 68px;
        padding: 0 18px;
    }
    .k-mobile-nav-toggle { display: inline-grid; align-content: center; }
    .k-primary-nav {
        display: none;
        position: absolute;
        left: 14px;
        right: 14px;
        top: 62px;
        padding: 10px;
        background: #fff;
        border: 1px solid var(--k-line);
        border-radius: 14px;
        box-shadow: 0 18px 40px rgba(16,17,20,.12);
    }
    .k-shellbar.nav-open .k-primary-nav { display: grid; }
    .k-primary-nav a { padding: 12px; }
    .k-shell-actions .secondary { font-size: 0; width: 42px; padding: 0; }
    .k-shell-actions .secondary::after { content: "↗"; font-size: 17px; }
    .container { width: min(100% - 28px, var(--k-shell)); padding: 34px 0 56px; }
    .container.narrow { width: min(100% - 28px, 760px); }
    .hero h1 { font-size: clamp(2rem, 11vw, 3rem); }
    .panel { padding: 20px; border-radius: 16px; }
    .stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .stats article { min-height: 108px; padding: 17px; }
    .row-between { align-items: stretch; }
}

@media (max-width: 480px) {
    .k-brand-word { letter-spacing: .12em; }
    .stats { grid-template-columns: 1fr 1fr; }
}