:root {
    --bg: #eef1f6;
    --card: #fbfcfe;
    --card-hover: #f0f3f8;
    --card-border: #c8d0dc;
    --card-text: #14181c;
    --card-text-muted: color-mix(in srgb, var(--card-text) 62%, var(--card));
    --card-text-strong: var(--card-text);
    --button: #2563eb;
    --button-hover: #1d4ed8;
    --button-text: #ffffff;
    --input: #ffffff;
    --input-border: #b0bcca;
    --msg-error: #fde8e8;
    --msg-error-border: #e8a0a0;
    --msg-success: #e8f5e9;
    --msg-success-border: #9ccc9c;
    --modal-overlay: rgba(15, 23, 42, 0.45);
    --shadow-sm: rgba(15, 23, 42, 0.06);
    --shadow-color: rgba(15, 23, 42, 0.12);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { color-scheme: light; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    background: var(--bg);
    color: var(--card-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--button); text-decoration: none; }
a:hover { text-decoration: underline; }

.app_inner { width: min(100%, 1240px); margin: 0 auto; padding: 0 20px; }

.app_header {
    background: var(--card);
    color: var(--card-text);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--card-border);
    flex-shrink: 0;
}

.app_header .app_inner {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 48px;
}

.nav_left { display: flex; align-items: center; gap: 0; position: relative; flex-shrink: 0; }
.nav_center { display: flex; align-items: center; flex: 1 1 auto; min-width: 0; }
.nav_right { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }

.nav_hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 28px;
    height: 28px;
    padding: 4px;
    background: none;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    margin-right: 8px;
}

.nav_hamburger_bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--card-text-muted);
    border-radius: 1px;
}

.nav_hamburger:hover .nav_hamburger_bar { background: var(--card-text); }

.nav_brand {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--card-text);
    letter-spacing: 0.02em;
    text-decoration: none;
    white-space: nowrap;
}

.nav_brand:hover { color: var(--card-text); text-decoration: none; }

.nav_title {
    color: var(--card-text-muted);
    font-size: 0.95em;
    font-weight: 600;
}

.nav_main_menu,
.nav_user_menu {
    display: none;
    position: absolute;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    box-shadow: 0 4px 16px var(--shadow-sm);
    z-index: 1000;
    white-space: nowrap;
}

.nav_main_menu {
    top: 100%;
    left: 0;
    min-width: 180px;
    padding: 4px 0;
}

.nav_user_menu {
    right: 0;
    top: calc(100% + 6px);
    min-width: 150px;
}

.nav_main_menu.open,
.nav_user_menu.open { display: block; }

.nav_identity_stack {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    gap: 2px;
}

.nav_identity_row {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    min-height: 18px;
}

.nav_identity_btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 1px 0;
    display: inline-flex;
    align-items: baseline;
    justify-content: flex-end;
    gap: 5px;
    text-align: right;
    font-family: inherit;
}

.nav_identity_btn:hover { background: none; }

.nav_identity_value {
    color: var(--card-text);
    font-size: 0.92em;
    line-height: 1.15;
    display: inline-block;
}

.nav_dropdown_arrow {
    font-size: 16px;
    color: var(--card-text-muted);
    margin-left: 2px;
    line-height: 1;
    position: relative;
    top: 1px;
}

.nav_user_block { position: relative; display: flex; align-items: center; }

.nav_user_menu_item {
    display: block;
    padding: 10px 16px;
    font-size: 0.92em;
    color: var(--card-text);
    text-decoration: none;
}

.nav_user_menu_item:hover { background: var(--card-hover); color: var(--card-text); text-decoration: none; }
.nav_inline_login { padding: 0; }
.nav_menu_sep { border: none; border-top: 1px solid var(--card-border); margin: 4px 0; }

.app_main { flex: 1; padding: 24px 0; }
.app_main_inner { display: flex; gap: 24px; align-items: flex-start; }
.app_main_right { flex: 1; min-width: 0; }

.app_footer {
    background: var(--card);
    border-top: 1px solid var(--card-border);
    flex-shrink: 0;
}

.app_footer .app_inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 36px;
    font-size: 0.82em;
    color: var(--card-text-muted);
}

.footer_left,
.footer_right {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
}

.footer_right {
    margin-left: auto;
    justify-content: flex-end;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.footer_link,
.footer_link_button {
    color: var(--card-text-muted);
    text-decoration: none;
    font: inherit;
}

.footer_link:hover,
.footer_link_button:hover {
    color: var(--card-text-strong);
    text-decoration: underline;
}

.footer_link_button {
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 0;
    margin: 0;
    width: auto;
    display: inline;
    line-height: inherit;
    font-weight: inherit;
    vertical-align: baseline;
    appearance: none;
}

.footer_link_button:hover {
    background: transparent;
}

.auth_card {
    max-width: 420px;
    margin: 0 auto;
    padding: 22px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    box-shadow: 0 8px 26px var(--shadow-color);
}

.generator_card { max-width: 840px; }
.wide_card { max-width: 920px; }
.log_card { max-width: 1180px; }

h1, h2 {
    color: var(--card-text);
    line-height: 1.2;
}

h1 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.section_head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.section_head h1 {
    margin: 0;
    text-align: left;
}

h2 {
    font-size: 1.05rem;
    margin: 1rem 0 0.5rem;
}

.form_stack {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    color: var(--card-text);
    font-weight: 600;
}

input[type="text"],
input[type="password"],
textarea {
    width: 100%;
    padding: 0.55rem;
    background: var(--input);
    border: 1px solid var(--input-border);
    border-radius: 4px;
    color: var(--card-text);
    font: inherit;
}

textarea {
    min-height: 88px;
    resize: vertical;
}

.label_note,
.field_hint {
    color: var(--card-text-muted);
    font-weight: 500;
}

.field_hint {
    margin-top: -4px;
    font-size: 0.92em;
}

.checkbox_label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

button,
.button {
    width: 100%;
    padding: 0.55rem;
    margin-top: 0.5rem;
    background: var(--button);
    color: var(--button-text);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

button:hover,
.button:hover { background: var(--button-hover); }

a.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

a.button:hover {
    color: var(--button-text);
    text-decoration: none;
}

.compact_button {
    width: auto;
    min-width: 110px;
    margin-top: 0;
    padding: 0.48rem 0.8rem;
}

.secondary_button {
    background: var(--card-hover);
    color: var(--card-text);
    border: 1px solid var(--card-border);
}

.secondary_button:hover {
    background: var(--card);
}

.danger_button { background: #b91c1c; }
.danger_button:hover { background: #991b1b; }

.result_block {
    display: none;
    margin: 18px auto 0;
}

.notice_danger,
.msg_error,
.msg_success {
    max-width: 920px;
    margin: 0 auto 16px;
    padding: 12px 14px;
    border-radius: 6px;
    line-height: 1.45;
}

.notice_danger,
.msg_error {
    background: var(--msg-error);
    border: 1px solid var(--msg-error-border);
}

.msg_success {
    background: var(--msg-success);
    border: 1px solid var(--msg-success-border);
}

.notice_danger p + p { margin-top: 6px; }

.table_wrap {
    overflow: visible;
    margin: 16px 0 22px;
    border: 1px solid var(--card-border);
    border-radius: 6px;
}

.log_table_wrap {
    overflow-x: auto;
}

.users_table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card);
}

.users_table th,
.users_table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--card-border);
    text-align: left;
    vertical-align: middle;
}

.users_table th {
    font-size: 0.86em;
    color: var(--card-text-muted);
    text-transform: uppercase;
}

.users_table tr:last-child td { border-bottom: none; }

.users_table code {
    font-family: Consolas, "SFMono-Regular", Menlo, monospace;
    font-size: 0.92em;
}

.log_table th,
.log_table td {
    white-space: nowrap;
}

.year_nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin: 10px 0 14px;
}

.year_link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 58px;
    padding: 6px 10px;
    border: 1px solid var(--card-border);
    border-radius: 4px;
    color: var(--card-text);
    background: var(--card);
    text-decoration: none;
    font-weight: 700;
}

.year_link:hover,
.year_link.active {
    background: var(--card-hover);
    color: var(--card-text);
    text-decoration: none;
}

.empty_state {
    padding: 16px;
    border: 1px dashed var(--card-border);
    border-radius: 6px;
    color: var(--card-text-muted);
    background: var(--card);
}

.actions_col,
.actions_cell {
    width: 1%;
    text-align: right;
    white-space: nowrap;
}

.row_action_wrap {
    position: relative;
    display: inline-flex;
    justify-content: flex-end;
}

.row_action_btn {
    width: 30px;
    height: 28px;
    padding: 0;
    margin: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--card-text);
    border: 1px solid transparent;
    font-weight: 800;
    line-height: 1;
}

.row_action_btn:hover {
    background: var(--card-hover);
    border-color: var(--card-border);
}

.row_action_menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 4px);
    min-width: 150px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    box-shadow: 0 4px 16px var(--shadow-sm);
    z-index: 80;
    padding: 4px 0;
}

.row_action_menu.open { display: block; }

.row_action_menu form { margin: 0; }

.row_action_item {
    width: 100%;
    margin: 0;
    padding: 9px 12px;
    background: transparent;
    color: var(--card-text);
    border: none;
    border-radius: 0;
    text-align: left;
    font-weight: 500;
}

.row_action_item:hover {
    background: var(--card-hover);
    color: var(--card-text);
}

.danger_text { color: #b91c1c; }

.danger_text:hover {
    color: #991b1b;
}

.muted,
.legal_text {
    color: var(--card-text-muted);
}

.legal_page .legal_text {
    line-height: 1.55;
    margin-top: 10px;
}

.legal_page code {
    font-family: Consolas, "SFMono-Regular", Menlo, monospace;
    color: var(--card-text);
}

.modal_overlay {
    position: fixed;
    inset: 0;
    background: var(--modal-overlay);
    z-index: 900;
}

.modal_box {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(460px, calc(100vw - 32px));
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    box-shadow: 0 18px 48px var(--shadow-color);
    padding: 18px;
    z-index: 901;
}

.modal_title {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 10px;
}

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

.settings_panel {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--card-border);
}

.settings_panel p + p {
    margin-top: 8px;
}

.settings_panel code {
    font-family: Consolas, "SFMono-Regular", Menlo, monospace;
    color: var(--card-text);
}

.modal_buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 14px;
}

.modal_buttons .button {
    width: auto;
    min-width: 90px;
}

.modal_note {
    margin-bottom: 12px;
}

@media (max-width: 700px) {
    .app_header .app_inner,
    .app_footer .app_inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
        padding-top: 8px;
        padding-bottom: 8px;
    }

    .nav_center { display: none; }
    .footer_right { margin-left: 0; justify-content: flex-start; flex-wrap: wrap; white-space: normal; }
    .section_head { align-items: stretch; flex-direction: column; }
    .compact_button { width: 100%; }
    .auth_card { max-width: none; }
}