:root {
    --bg: #f4f6f9;
    --card-bg: #ffffff;
    --ink: #1f2933;
    --muted: #6b7280;
    --border: #d7dee7;
    --primary: #1d4ed8;
    --primary-ink: #ffffff;
    --error: #b91c1c;
    --error-bg: #fdecec;
    --info-bg: #eef2ff;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(16, 24, 40, 0.08), 0 1px 2px rgba(16, 24, 40, 0.06);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    background: #fff;
    border-bottom: 1px solid var(--border);
}

.app-header__inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.app-header__brand {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--ink);
    text-decoration: none;
}

.app-header__nav { display: flex; align-items: center; gap: 0.75rem; }
.app-header__user { color: var(--muted); font-size: 0.9rem; }

.app-main {
    flex: 1;
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem;
}

.app-footer {
    text-align: center;
    color: var(--muted);
    font-size: 0.8rem;
    padding: 1rem;
}

.page-title { font-size: 1.5rem; margin: 0 0 1.25rem; }

.category { margin-bottom: 2rem; }
.category__title {
    font-size: 1.1rem;
    margin: 0 0 0.75rem;
    padding-bottom: 0.35rem;
    border-bottom: 2px solid var(--border);
}

.document-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.doc-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-sizing: border-box;
    box-shadow: var(--shadow);
    padding: 1rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.doc-card__name { margin: 0; font-size: 1.05rem; }
.doc-card__desc { margin: 0; color: var(--muted); font-size: 0.9rem; flex: 1; }
.doc-card__type {
    align-self: flex-start;
    font-size: 0.7rem;
    letter-spacing: 0.04em;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.1rem 0.55rem;
}
.doc-card__btn { margin-top: 0.5rem; text-align: center; }

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    max-width: 720px;
}
.card--narrow { max-width: 460px; margin: 0 auto; }
.card__title { margin: 0 0 0.35rem; font-size: 1.35rem; }
.card__subtitle { margin: 0 0 1.25rem; color: var(--muted); }

.back-link { display: inline-block; margin-bottom: 0.75rem; color: var(--primary); text-decoration: none; }

.field { display: block; margin-bottom: 1rem; position: relative; }
.field__label { display: block; font-size: 0.9rem; margin-bottom: 0.3rem; }
.field__required { color: var(--error); }
.field__input {
    width: 100%;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: #fff;
}
.field__input:focus { outline: 2px solid var(--primary); border-color: var(--primary); }
.field__input--error { border-color: var(--error); background: var(--error-bg); }
.field__suffix { font-size: 0.8rem; color: var(--muted); }
.field__error { display: block; color: var(--error); font-size: 0.82rem; margin-top: 0.25rem; }

.btn {
    display: inline-block;
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 0.6rem 1.1rem;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}
.btn--primary { background: var(--primary); color: var(--primary-ink); }
.btn--primary:hover { background: #1740b4; }
.btn--secondary { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn--ghost { background: transparent; color: var(--muted); border-color: var(--border); padding: 0.35rem 0.75rem; font-size: 0.85rem; }

.alert { border-radius: 8px; padding: 0.7rem 0.9rem; margin: 0 0 1rem; font-size: 0.9rem; }
.alert--error { background: var(--error-bg); color: var(--error); }
.alert--info { background: var(--info-bg); color: #3730a3; }

.result { display: grid; grid-template-columns: auto 1fr; gap: 0.4rem 1rem; margin: 1rem 0 1.25rem; }
.result dt { color: var(--muted); font-size: 0.85rem; }
.result dd { margin: 0; }
.result__actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.result__links { display: flex; flex-direction: column; gap: 0.4rem; }
.result__links a { color: var(--primary); text-decoration: none; }

@media (max-width: 520px) {
    .result { grid-template-columns: 1fr; }
    .result dt { margin-top: 0.5rem; }
}