/* Палитра и базовые настройки. Все ресурсы локальные, внешних шрифтов нет. */
:root {
    --paper: #f7f8f3;
    --surface: #ffffff;
    --ink: #233c30;
    --muted: #5f7065;
    --green: #28583f;
    --green-dark: #1c412d;
    --tint: #edf2e9;
    --line: #d9e1d5;
    --error: #9b3030;
    --radius: 12px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body {
    margin: 0;
    color: var(--ink);
    background-color: var(--paper);
    /* Фоновое изображение: повторение, положение и фиксация при прокрутке. */
    background-image: url("../images/grid.svg");
    background-repeat: repeat;
    background-position: center top;
    background-attachment: fixed;
    font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
/* Селекторы тегов. */
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { line-height: 1.25; }
h1 { font: 400 clamp(36px, 4vw, 48px)/1.1 Georgia, "Times New Roman", serif; letter-spacing: -1.5px; }
h2 { font-size: 22px; font-weight: 600; letter-spacing: -0.5px; }
h3 { font-size: 16px; font-weight: 600; }
img { display: block; width: 100%; max-width: 100%; height: auto; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; }
button, a, input, textarea { -webkit-tap-highlight-color: transparent; }
/* Псевдоклассы ссылок, отключение подчёркивания и видимый фокус. */
a:link, a:visited { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-dark); text-decoration: underline; text-underline-offset: 5px; }
a:active { color: #152e20; }
:focus-visible { outline: 3px solid #527a41; outline-offset: 5px; }
.site-shell { width: min(1280px, calc(100% - 80px)); margin: 0 auto; }
.skip-link { position: absolute; z-index: 10; top: 10px; left: 10px; transform: translateY(-160%); padding: 10px 20px; background: white; border: 1px solid var(--green); }
.skip-link:focus { transform: translateY(0); }
.site-header { padding: 30px 0 34px; }
.wordmark { display: inline-flex; align-items: center; gap: 11px; margin-bottom: 24px; font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; }
.brand-mark { font: 30px/1 Georgia, serif; letter-spacing: -3px; padding-right: 3px; }
.site-name { font: 400 clamp(36px, 4.2vw, 54px)/1.15 Georgia, "Times New Roman", serif; letter-spacing: -2px; overflow-wrap: anywhere; }
.header-subtitle { margin-top: 6px; color: var(--muted); font-size: 14px; }
.site-nav { background: var(--green); border-radius: 8px; padding: 0 10px; }
.site-nav ul { display: flex; flex-wrap: wrap; margin: 0; padding: 0; list-style: none; }
/* Дочерний селектор: список превращается в горизонтальное меню. */
.site-nav > ul > li > a { display: block; padding: 17px 20px; color: #f5f7ef; font-size: 14px; text-decoration: none; border-bottom: 3px solid transparent; transition: background-color 160ms ease, border-color 160ms ease; }
.site-nav a:hover { background: #376349; }
.site-nav a[aria-current="page"] { border-bottom-color: #d5e3ae; background: #315e45; }
.site-nav a:focus-visible { outline-color: #e0edbf; outline-offset: -5px; }
.page-grid { display: grid; grid-template-columns: 196px minmax(0, 1fr) 230px; align-items: start; gap: 30px; padding: 38px 0 48px; }
.page-grid > * { min-width: 0; }
.sidebar { display: grid; gap: 24px; font-size: 14px; }
.side-section { padding: 21px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.eyebrow { font-size: 10px; letter-spacing: 1.7px; text-transform: uppercase; font-weight: 700; color: var(--muted); line-height: 1.5; }
.small-text { font-size: 12px; line-height: 1.6; color: var(--muted); }
/* Изменение стиля горизонтальной линии. */
hr { margin: 20px 0; border: 0; border-top: 1px solid var(--line); }
.page-navigation { padding: 0 3px; }
.page-navigation ul { list-style: none; margin: 12px 0 0; padding: 0; }
.page-navigation li + li { border-top: 1px solid var(--line); }
.page-navigation a { display: block; padding: 10px 0; font-size: 13px; }
/* Селектор ID: отдельное оформление главной области. */
#main-content { outline: none; }
.content-section { margin-bottom: 36px; }
.lead { font-size: 20px; margin-top: 21px; color: #43563c; }
/* Смежный селектор и межстрочный интервал. */
.lead + p { margin-top: 10px; font-size: 14px; line-height: 1.85; color: var(--muted); }
.content-copy { overflow-wrap: anywhere; }
.feature-image { margin-top: 24px; }
/* Рамка и прозрачность изображения; CSS3 — скругление и переход. */
.feature-image img { border: 1px solid var(--line); border-radius: var(--radius); opacity: 0.9; transition: opacity 180ms ease; }
.feature-image img:hover { opacity: 1; }
figcaption { margin-top: 9px; color: var(--muted); font-size: 10px; }
.section-heading { border-top: 1px solid var(--line); padding-top: 26px; margin-bottom: 12px; }
.section-description { font-size: 13px; line-height: 1.8; color: var(--muted); margin-bottom: 18px; }
.interests-accordion { margin-top: 18px; }
.interests-accordion h3 { background: var(--tint); padding: 16px 18px; border-radius: 8px; margin-top: 8px; }
.interests-accordion > div { padding: 16px 18px; color: var(--muted); font-size: 14px; }
/* Контекстные селекторы и собственная тема jQuery UI. */
.interests-accordion.ui-accordion { font: inherit; }
.interests-accordion.ui-accordion .ui-accordion-header { display: flex; flex-direction: row-reverse; align-items: center; justify-content: space-between; padding: 15px 18px; margin: 8px 0 0; border: 1px solid var(--line); background: var(--surface); color: var(--ink); font-family: inherit; font-size: 14px; font-weight: 600; line-height: 1.5; border-radius: 8px; }
.interests-accordion.ui-accordion .ui-accordion-header-active { background: var(--tint); border-radius: 8px 8px 0 0; border-bottom-color: transparent; }
.interests-accordion.ui-accordion .ui-accordion-content { border: 1px solid var(--line); border-top: 0; background: var(--tint); border-radius: 0 0 8px 8px; font-family: inherit; font-size: 14px; line-height: 1.8; padding: 0 18px 18px; color: var(--muted); }
.interests-accordion .ui-state-focus { outline: 2px solid var(--green); outline-offset: 2px; }
.interests-accordion .ui-accordion-header::before { content: "+"; font: 20px/1 Georgia, serif; color: var(--muted); }
.interests-accordion .ui-accordion-header-active::before { content: "−"; }
.project-toolbar { margin: 27px 0 20px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.project-filters { display: flex; flex-wrap: wrap; gap: 6px; }
.filter-button { padding: 7px 12px; border: 1px solid var(--line); border-radius: 5px; background: var(--surface); color: var(--muted); font-size: 11px; transition: background-color 150ms ease; }
.filter-button:hover { background: var(--tint); }
.filter-button.is-active { background: var(--green); border-color: var(--green); color: white; }
.project-count { font-size: 10px; color: var(--muted); }
.projects-list { display: grid; gap: 20px; }
.project-card { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: white; }
.project-card > img { border-bottom: 1px solid var(--line); aspect-ratio: 12 / 7; object-fit: contain; opacity: 0.9; transition: opacity 180ms ease; }
.project-card:hover > img { opacity: 1; }
.project-content { padding: 20px 22px; }
.technology-tag { display: inline-block; margin-bottom: 13px; padding: 2px 9px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); font-size: 10px; }
.project-content h2 { font-size: 20px; overflow-wrap: anywhere; }
.project-summary, .project-details { margin-top: 9px; font-size: 13px; color: var(--muted); overflow-wrap: anywhere; }
.project-details { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 15px; }
.details-toggle { margin-top: 19px; padding: 0 0 3px; border: 0; border-bottom: 1px solid #afbe9e; background: none; color: var(--green); font-size: 12px; font-weight: 600; }
.details-toggle:hover { border-color: var(--green); }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 12px; text-align: left; }
caption { text-align: left; padding: 12px 16px; font-size: 11px; color: var(--muted); }
th { background: var(--tint); font-size: 10px; letter-spacing: 0.6px; text-transform: uppercase; font-weight: 600; }
th, td { padding: 13px 16px; border-bottom: 1px solid var(--line); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #f7faf4; }
.contact-section { padding: 26px; background: var(--tint); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 0; }
.contact-section h2 { margin-bottom: 10px; font-size: 26px; font-family: Georgia, serif; font-weight: 400; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; margin-bottom: 12px; }
label { font-size: 11px; font-weight: 600; }
label > span { color: var(--muted); }
input, textarea { width: 100%; border: 1px solid #c8d3c1; border-radius: 6px; padding: 10px 12px; color: var(--ink); background: white; font-size: 12px; line-height: 1.6; }
textarea { resize: vertical; min-height: 115px; }
input::placeholder, textarea::placeholder { color: #708068; opacity: 1; }
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: var(--error); }
.field-error { color: var(--error); font-size: 11px; line-height: 1.5; }
.field-error:empty { display: none; }
.form-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 20px; border: 1px solid transparent; border-radius: 6px; padding: 12px 17px; font-size: 12px; font-weight: 600; transition: background-color 160ms ease, transform 160ms ease; }
.button-primary { background: var(--green); color: white; }
.button-primary:hover { background: var(--green-dark); }
.button-primary:active { transform: translateY(1px); }
.button:disabled { opacity: 0.6; }
.form-status { margin-top: 14px; font-size: 12px; }
.form-status:empty { margin-top: 0; }
.form-status.is-error { color: var(--error); }
.form-status.is-success { border-left: 3px solid var(--green); padding-left: 10px; }
.side-heading { margin-bottom: 10px; font-size: 16px; letter-spacing: -0.3px; overflow-wrap: anywhere; }
.goals-list { list-style: none; padding: 0; margin: 18px 0 12px; }
.goals-list > li { margin-top: 9px; background: #f5f7f0; border: 1px solid var(--line); border-radius: 7px; padding: 10px 11px; }
.goal-label { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.goal-name { overflow-wrap: anywhere; }
.drag-handle { font-size: 20px; line-height: 1; cursor: grab; color: #829675; }
.ui-sortable-helper { box-shadow: 0 8px 18px #233c3020; }
.goals-list .goal-placeholder { min-height: 82px; border: 1px dashed #7d996c; background: var(--tint); }
.goal-actions { display: flex; gap: 8px; margin-top: 7px; padding-left: 22px; }
.goal-actions button { min-height: 30px; padding: 2px 3px; color: var(--green); background: none; border: 0; border-bottom: 1px solid #acbda0; font-size: 10px; }
.goal-actions button:hover { border-color: var(--green); }
.goal-actions button:disabled { color: #8b9784; border-color: transparent; }
.goals-status { font-size: 10px; min-height: 32px; }
.sidebar-text { padding: 0 3px; overflow-wrap: anywhere; }
.sidebar-text p { color: var(--muted); font-size: 13px; }
.site-footer { border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 23px 0 30px; color: var(--muted); font-size: 11px; }
.footer-brand { font-weight: 600; color: var(--ink); }
.notice { padding: 14px; margin-top: 20px; border: 1px solid var(--line); background: #faf3de; border-radius: 8px; font-size: 13px; }
[hidden] { display: none !important; }
@media (max-width: 1150px) {
    .site-shell { width: calc(100% - 48px); }
    .page-grid { grid-template-columns: 165px minmax(0, 1fr) 200px; gap: 22px; }
    .side-section { padding: 17px; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
}
@media (max-width: 900px) {
    .page-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; }
    .sidebar-left { grid-row: 2; }
    .sidebar-right { grid-row: 3; }
    main { grid-row: 1; }
    .feature-image img { object-fit: contain; }
    .form-row { grid-template-columns: 1fr 1fr; gap: 14px; }
}
@media (max-width: 540px) {
    .site-shell { width: calc(100% - 32px); }
    .site-header { padding: 23px 0 25px; }
    .site-name { font-size: 40px; }
    .site-nav { padding: 0 3px; }
    .site-nav ul { width: 100%; }
    .site-nav li { flex: 1; }
    .site-nav > ul > li > a { text-align: center; padding: 15px 6px; font-size: 11px; }
    .page-grid { padding-top: 27px; }
    .contact-section { padding: 20px 17px; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
    .form-actions { align-items: flex-start; flex-direction: column; }
    .site-footer { align-items: flex-start; flex-wrap: wrap; gap: 12px; }
    th, td { padding: 12px 10px; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}