:root {
    --km-ink: #17372f;
    --km-muted: #64756f;
    --km-green: #23785b;
    --km-green-dark: #15543f;
    --km-lime: #82bd45;
    --km-blue: #346da9;
    --km-red: #cf3f43;
    --km-cream: #f7f8f1;
    --km-line: #dce7df;
    --km-shadow: 0 18px 55px rgba(34, 66, 52, .12);
}

.km-app,
.km-app *,
.km-login-page,
.km-login-page * { box-sizing: border-box; }

.km-app,
.km-login-page {
    color: var(--km-ink);
    font-family: Inter, "Segoe UI", Arial, sans-serif;
}

.km-app { min-height: 720px; background: #eef3ef; }

.km-header {
    position: sticky;
    z-index: 100;
    top: 0;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
    min-height: 82px;
    padding: 8px clamp(18px, 4vw, 64px);
    color: #fff;
    background: #173c33;
    box-shadow: 0 5px 24px rgba(12, 42, 33, .18);
}

.km-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    text-decoration: none;
}

.km-brand img {
    width: 80px;
    height: 64px;
    border-radius: 8px;
    object-fit: contain;
}

.km-brand span,
.km-brand strong,
.km-brand small { display: block; }
.km-brand strong { font-size: 1.1rem; }
.km-brand small { margin-top: 2px; color: #b9d6cb; font-size: .73rem; }

.km-nav {
    display: flex;
    justify-content: center;
    gap: 4px;
}

.km-nav a {
    padding: 10px 13px;
    border-radius: 10px;
    color: #d8e9e2;
    font-size: .88rem;
    font-weight: 750;
    text-decoration: none;
}

.km-nav a:hover,
.km-nav a.active { color: #173c33; background: #fff; }

.km-user {
    display: flex;
    align-items: center;
    gap: 11px;
    font-size: .83rem;
}

.km-user form { margin: 0; }
.km-link-button {
    padding: 8px 11px;
    border: 1px solid rgba(255, 255, 255, .45);
    border-radius: 9px;
    color: #fff;
    background: transparent;
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}

.km-main {
    width: min(1480px, calc(100% - 36px));
    margin: 0 auto;
    padding: 22px 0 60px;
}

.km-hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 132px;
    margin-bottom: 22px;
    overflow: hidden;
    padding: 20px clamp(24px, 4vw, 42px);
    border-radius: 22px;
    color: #fff;
    background:
        radial-gradient(circle at 86% 20%, rgba(255, 255, 255, .16) 0 9%, transparent 10%),
        linear-gradient(128deg, #2a8462, #73ad38);
    box-shadow: var(--km-shadow);
}

.km-hero h1 {
    margin: 0;
    font-size: clamp(1.65rem, 3vw, 2.35rem);
    font-weight: 900;
    letter-spacing: -.045em;
}

.km-hero p:last-child { max-width: 670px; margin: 7px 0 0; color: rgba(255, 255, 255, .9); font-size: .92rem; }
.km-hero img { width: clamp(106px, 11vw, 142px); height: auto; border-radius: 11px; object-fit: contain; transform: rotate(4deg); filter: drop-shadow(0 10px 12px rgba(17, 55, 38, .25)); }
.km-eyebrow { margin: 0 0 7px; color: #c8f08c; font-size: .77rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.km-page-heading .km-eyebrow { color: var(--km-green); }

.km-dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.km-card,
.km-level-card,
.km-editor-sidebar,
.km-editor-canvas {
    border: 1px solid var(--km-line);
    border-radius: 23px;
    background: #fff;
    box-shadow: var(--km-shadow);
}

.km-card { padding: clamp(22px, 3vw, 34px); }
.km-card--status { border-top: 5px solid #2d9871; }
.km-card--password { border-top: 5px solid #de714d; }
.km-card--levels { border-top: 5px solid #3e78b4; }
.km-card--security { border-top: 5px solid #775cab; }

.km-card-heading { display: flex; align-items: center; gap: 15px; }
.km-card-heading > span { display: grid; flex: 0 0 54px; place-items: center; width: 54px; height: 54px; border-radius: 16px; background: #edf6f1; font-size: 1.55rem; }
.km-card-heading small { color: var(--km-green); font-size: .74rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.km-card-heading h2 { margin: 3px 0 0; font-size: 1.5rem; }
.km-card > p { color: var(--km-muted); line-height: 1.55; }

.km-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 20px; }
.km-actions form,
.km-inline-form { margin: 0; }

.km-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 43px;
    padding: 9px 16px;
    border: 1px solid transparent;
    border-radius: 10px;
    color: #fff;
    background: var(--km-green);
    font-family: inherit;
    font-size: .9rem;
    font-weight: 800;
    line-height: 1.25;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

.km-btn:hover { color: #fff; filter: brightness(1.06); }
.km-btn:disabled { opacity: .43; cursor: default; filter: none; }
.km-btn--green { background: #2d8c62; }
.km-btn--red { background: var(--km-red); }
.km-btn--primary { background: var(--km-blue); }
.km-btn--outline { color: var(--km-green-dark); border-color: #9bb7aa; background: #fff; }
.km-btn--outline:hover { color: var(--km-green-dark); background: #eff6f2; }
.km-btn--danger-outline { color: #ad292e; border-color: #e1a8aa; background: #fff; }
.km-btn--danger-outline:hover { color: #891e22; background: #fff2f2; }

.km-short-link { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--km-line); }
.km-short-link label { display: block; margin-bottom: 7px; font-weight: 800; }
.km-short-link > div { display: flex; gap: 8px; }
.km-short-link input {
    min-width: 0;
    flex: 1;
    min-height: 43px;
    padding: 9px 11px;
    border: 1px solid #b8c9c0;
    border-radius: 9px;
    color: #41564d;
    background: #f8faf8;
}

.km-form { display: grid; gap: 8px; margin-top: 22px; }
.km-form > label:not(.km-check),
.km-editor-sidebar label { margin-top: 4px; color: #3a5148; font-size: .84rem; font-weight: 800; }
.km-form input[type="password"],
.km-editor-sidebar input[type="text"],
.km-editor-sidebar input[type="number"],
.km-editor-sidebar textarea,
.km-editor-sidebar select,
.km-login-form input[type="text"],
.km-login-form input[type="password"] {
    width: 100%;
    min-height: 45px;
    padding: 10px 12px;
    border: 1px solid #afc2b8;
    border-radius: 9px;
    color: var(--km-ink);
    background: #fff;
    font: inherit;
}

.km-editor-sidebar textarea { min-height: 96px; resize: vertical; }
.km-check { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; font-weight: 750; }
.km-check input { width: 19px; height: 19px; }
.km-inline-form { margin-top: 11px; }

.km-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin: 22px 0 0; }
.km-stats div { padding: 15px 8px; border-radius: 13px; text-align: center; background: #eef5fb; }
.km-stats strong,
.km-stats span { display: block; }
.km-stats strong { color: #2f6498; font-size: 1.65rem; }
.km-stats span { margin-top: 4px; color: var(--km-muted); font-size: .76rem; }

.km-page-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; margin-bottom: 24px; }
.km-page-heading h1 { margin: 0; color: var(--km-ink); font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; letter-spacing: -.045em; }
.km-level-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.km-level-card { position: relative; display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 16px; padding: 23px; }
.km-level-number { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; color: #fff; background: var(--km-green); font-size: 1.15rem; font-weight: 900; }
.km-level-card h2 { margin: 7px 0 5px; font-size: 1.2rem; }
.km-level-card p { min-height: 40px; margin: 0; color: var(--km-muted); line-height: 1.42; }
.km-level-card dl { grid-column: 1 / -1; display: flex; gap: 28px; margin: 2px 0 0; padding-top: 14px; border-top: 1px solid var(--km-line); }
.km-level-card dl div { display: flex; gap: 6px; }
.km-level-card dt { color: var(--km-muted); }
.km-level-card dd { margin: 0; font-weight: 800; }
.km-level-card .km-actions { grid-column: 1 / -1; margin-top: 0; }
.km-difficulty { display: inline-block; padding: 4px 9px; border-radius: 999px; font-size: .72rem; font-weight: 850; }
.km-difficulty--1 { color: #17613f; background: #daf4e4; }
.km-difficulty--2 { color: #8a540e; background: #fff1be; }
.km-difficulty--3 { color: #972d30; background: #ffe0e1; }

.km-editor-form { display: grid; grid-template-columns: minmax(280px, 360px) minmax(520px, 1fr); gap: 22px; align-items: start; }
.km-editor-sidebar { display: grid; gap: 8px; padding: 24px; }
.km-size-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.km-size-row > div { display: grid; gap: 7px; }
.km-editor-sidebar .km-check { margin: 8px 0; }
.km-save { width: 100%; margin-top: 8px; }
.km-editor-canvas { min-width: 0; padding: 24px; }
.km-editor-canvas h2 { margin: 0 0 5px; }
.km-editor-canvas > p { margin: 0; color: var(--km-muted); }
.km-editor-canvas .katica-tools { margin-top: 18px; }

.km-login-page {
    display: grid;
    place-items: center;
    min-height: 640px;
    padding: 46px 26px;
    background: #f8fafc;
}

.km-login-card {
    width: min(480px, 100%);
    padding: clamp(28px, 5vw, 48px);
    border: 1px solid rgba(255, 255, 255, .6);
    border-radius: 27px;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 28px 70px rgba(15, 53, 38, .3);
}

.km-login-logo { display: block; width: 220px; max-width: 70%; height: auto; margin: -7px auto 12px; border-radius: 12px; object-fit: contain; }
.km-login-card h1 { margin: 0; color: var(--km-ink); font-size: 2.1rem; text-align: center; }
.km-login-card > p { color: var(--km-muted); line-height: 1.55; text-align: center; }
.km-login-card .km-eyebrow { color: var(--km-green); text-align: center; }
.km-login-form { display: grid; gap: 8px; margin-top: 22px; }
.km-login-form > label:not(.km-check) { margin-top: 5px; font-size: .86rem; font-weight: 800; }
.km-login-form .km-btn { width: 100%; margin-top: 9px; }

@media (max-width: 1100px) {
    .km-header { grid-template-columns: auto 1fr; }
    .km-nav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; overflow-x: auto; }
    .km-user { justify-self: end; }
    .km-editor-form { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
    .km-header { gap: 12px; padding: 10px 14px; }
    .km-brand small,
    .km-user > span { display: none; }
    .km-nav { gap: 2px; }
    .km-nav a { flex: 0 0 auto; padding: 8px 10px; font-size: .8rem; }
    .km-main { width: min(100% - 22px, 1480px); padding-top: 18px; }
    .km-hero { min-height: 120px; padding: 18px 22px; }
    .km-hero img { position: absolute; right: 12px; bottom: 8px; opacity: .25; }
    .km-dashboard-grid,
    .km-level-grid { grid-template-columns: 1fr; }
    .km-page-heading { align-items: flex-start; flex-direction: column; }
    .km-short-link > div { flex-direction: column; }
    .km-editor-canvas { padding: 14px; }
}

@media (max-width: 520px) {
    .km-brand img { width: 62px; height: 50px; }
    .km-brand strong { font-size: .94rem; }
    .km-card,
    .km-level-card,
    .km-editor-sidebar { padding: 18px; }
    .km-level-card { grid-template-columns: 42px minmax(0, 1fr); gap: 12px; }
    .km-level-number { width: 42px; height: 42px; }
    .km-level-card dl { flex-direction: column; gap: 5px; }
    .km-actions > .km-btn,
    .km-actions > form { width: 100%; }
    .km-actions form .km-btn { width: 100%; }
}