/* ============================================
   Базовые стили для всего сайта
   ============================================ */

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

body {
    background: #0a0e17;
    color: #c8d6e5;
    font-family: 'Courier New', monospace;
    min-height: 100vh;
}

/* ============================================
   Контейнеры
   ============================================ */

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Хедер (общий для всех страниц)
   ============================================ */

.header {
    border-bottom: 2px solid #00d4ff;
    padding-bottom: 20px;
    margin-bottom: 40px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #00d4ff;
    text-shadow: 0 0 10px rgba(0,212,255,0.3);
}

.logo span {
    color: #7f8fa6;
    font-weight: normal;
    font-size: 16px;
}

.logo i {
    margin-right: 8px;
}

.nav a {
    color: #7f8fa6;
    text-decoration: none;
    margin-left: 30px;
    font-size: 16px;
    transition: color 0.2s;
    border-bottom: 2px solid transparent;
    padding-bottom: 4px;
}

.nav a:hover {
    color: #00d4ff;
    border-bottom-color: #00d4ff;
}

/* ============================================
   Главная страница (index.html)
   ============================================ */

body.homepage {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

.homepage .container {
    max-width: 1000px;
    width: 100%;
}

/* Сетка на главной */
.grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    margin-top: 20px;
}

@media (max-width: 700px) {
    .grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* Карточки */
.card {
    background: rgba(255,255,255,0.03);
    border: 1px solid #1a2332;
    border-radius: 12px;
    padding: 24px;
    backdrop-filter: blur(2px);
    transition: border-color 0.3s;
}

.card:hover {
    border-color: #00d4ff44;
}

.card h2 {
    color: #00d4ff;
    font-size: 18px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    border-bottom: 1px dashed #1a2332;
    padding-bottom: 10px;
}

.card h2 i {
    margin-right: 8px;
}

.card p {
    line-height: 1.8;
    margin-bottom: 12px;
    font-size: 15px;
}

/* Теги языков */
.lang-tag {
    display: inline-block;
    background: #00d4ff11;
    color: #00d4ff;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
    border: 1px solid #00d4ff33;
    margin: 4px 6px 4px 0;
}

.lang-tag i {
    margin-right: 4px;
}

/* Статистика на главной */
.stats {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid #1a2332;
}

.stats div {
    text-align: center;
}

.stats .num {
    color: #00d4ff;
    font-size: 22px;
    font-weight: bold;
}

.stats .label {
    font-size: 12px;
    color: #576574;
    text-transform: uppercase;
}

/* Терминальная строка */
.terminal-line {
    background: #0d1117;
    padding: 12px 18px;
    border-radius: 8px;
    border-left: 3px solid #00d4ff;
    font-size: 14px;
    color: #7f8fa6;
    margin: 16px 0;
}

.terminal-line strong {
    color: #00d4ff;
}

/* Блок с быстрыми ссылками */
.quick-link {
    display: block;
    padding: 10px 0;
    color: #7f8fa6;
    text-decoration: none;
    border-bottom: 1px solid #1a2332;
    transition: color 0.2s, padding-left 0.2s;
}

.quick-link:hover {
    color: #00d4ff;
    padding-left: 8px;
}

.quick-link i {
    width: 20px;
    margin-right: 8px;
    color: #00d4ff;
}

.status-box {
    margin-top: 20px;
    padding: 14px;
    background: #0d1117;
    border-radius: 8px;
    border: 1px solid #1a2332;
}

.status-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
}

.status-row:not(:last-child) {
    margin-bottom: 6px;
}

.status-label {
    color: #576574;
}

.status-value {
    color: #00d4ff;
}

/* ============================================
   Открытое море (open-sea.html)
   ============================================ */

body.sea {
    padding: 40px 20px;
}

/* Панель управления (поиск + фильтры) */
.controls {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 30px;
    padding: 16px 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid #1a2332;
    border-radius: 12px;
    align-items: center;
}

.controls input {
    flex: 1;
    min-width: 200px;
    background: #0d1117;
    border: 1px solid #1a2332;
    color: #c8d6e5;
    padding: 10px 16px;
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.3s;
}

.controls input:focus {
    outline: none;
    border-color: #00d4ff;
}

.controls input::placeholder {
    color: #576574;
}

.filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    background: transparent;
    border: 1px solid #1a2332;
    color: #7f8fa6;
    padding: 6px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    transition: all 0.2s;
}

.filter-btn:hover {
    border-color: #00d4ff44;
    color: #c8d6e5;
}

.filter-btn.active {
    background: #00d4ff11;
    border-color: #00d4ff;
    color: #00d4ff;
}

.filter-btn i {
    margin-right: 4px;
}

/* Сетка статей */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

@media (max-width: 600px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Карточка статьи */
.article-card {
    background: rgba(255,255,255,0.02);
    border: 1px solid #1a2332;
    border-radius: 12px;
    padding: 20px 22px;
    transition: border-color 0.3s, transform 0.15s;
}

.article-card:hover {
    border-color: #00d4ff44;
    transform: translateY(-2px);
}

.article-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.article-card .tag {
    background: #00d4ff11;
    color: #00d4ff;
    padding: 2px 12px;
    border-radius: 30px;
    font-size: 11px;
    border: 1px solid #00d4ff22;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Цвета для разных тегов */
.article-card .tag.java { border-color: #f8981d44; color: #f8981d; background: #f8981d11; }
.article-card .tag.kotlin { border-color: #7f52ff44; color: #7f52ff; background: #7f52ff11; }
.article-card .tag.ml { border-color: #00bcd444; color: #00bcd4; background: #00bcd411; }
.article-card .tag.cs { border-color: #66bb6a44; color: #66bb6a; background: #66bb6a11; }
.article-card .tag.php { border-color: #777bb344; color: #777bb3; background: #777bb311; }
.article-card .tag.architecture { border-color: #ffb74d44; color: #ffb74d; background: #ffb74d11; }
.article-card .tag.postgresql { border-color: #33679144; color: #6ea3d6; background: #33679111; }
.article-card .tag.cassandra { border-color: #6e8b9b44; color: #aec9d6; background: #6e8b9b11; }

.article-card h3 {
    font-size: 17px;
    margin-bottom: 8px;
    color: #e0e8f0;
}

.article-card h3 a {
    color: #e0e8f0;
    text-decoration: none;
    transition: color 0.2s;
}

.article-card h3 a:hover {
    color: #00d4ff;
}

.article-card .description {
    font-size: 14px;
    color: #7f8fa6;
    line-height: 1.6;
    margin-bottom: 12px;
}

.article-card .meta {
    font-size: 12px;
    color: #576574;
    display: flex;
    justify-content: space-between;
    border-top: 1px solid #1a2332;
    padding-top: 12px;
}

.article-card .meta a {
    color: #00d4ff;
    text-decoration: none;
}

.article-card .meta a:hover {
    text-decoration: underline;
}

/* Статистика */
.stats-bar {
    display: flex;
    justify-content: space-between;
    color: #576574;
    font-size: 13px;
    margin-bottom: 20px;
}

/* Сообщение "ничего не найдено" */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 50px 20px;
    color: #576574;
}

.no-results i {
    font-size: 40px;
    margin-bottom: 16px;
    display: block;
}

/* ============================================
   Страница входа (admin-login.html)
   ============================================ */

body.login {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    max-width: 420px;
    width: 100%;
    background: rgba(255,255,255,0.02);
    border: 1px solid #1a2332;
    border-radius: 16px;
    padding: 40px 35px;
    backdrop-filter: blur(4px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.login-container:hover {
    border-color: #00d4ff44;
}

.lock-icon {
    text-align: center;
    font-size: 48px;
    color: #00d4ff;
    margin-bottom: 10px;
}

.login-container h1 {
    text-align: center;
    font-size: 22px;
    color: #e0e8f0;
    margin-bottom: 6px;
    font-weight: normal;
    letter-spacing: 1px;
}

.login-container .subtitle {
    text-align: center;
    color: #576574;
    font-size: 13px;
    margin-bottom: 30px;
}

/* Форма */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: #7f8fa6;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group label i {
    margin-right: 6px;
}

.form-group input {
    width: 100%;
    background: #0d1117;
    border: 1px solid #1a2332;
    color: #c8d6e5;
    padding: 12px 16px;
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #00d4ff;
}

.form-group input::placeholder {
    color: #3a4a5a;
}

.btn-login {
    width: 100%;
    background: #00d4ff;
    color: #0a0e17;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-family: inherit;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    letter-spacing: 1px;
}

.btn-login:hover {
    background: #00b8d4;
}

.btn-login:active {
    transform: scale(0.97);
}

.btn-login:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Сообщения */
.message {
    margin-top: 18px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    display: none;
    text-align: center;
}

.message.error {
    display: block;
    background: #ff174411;
    border: 1px solid #ff174444;
    color: #ff5252;
}

.message.success {
    display: block;
    background: #00e67611;
    border: 1px solid #00e67644;
    color: #69f0ae;
}

.message i {
    margin-right: 8px;
}

/* Отладочная информация */
.debug-info {
    margin-top: 15px;
    padding: 10px;
    background: #0d1117;
    border-radius: 6px;
    font-size: 12px;
    color: #576574;
    display: none;
    border: 1px solid #1a2332;
    word-break: break-all;
}

.debug-info.visible {
    display: block;
}

/* Ссылки на странице входа */
.login-container .back-link {
    display: block;
    text-align: center;
    margin-top: 25px;
    color: #1a2332;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}

.login-container .back-link:hover {
    color: #576574;
}

.login-container .footer-note {
    text-align: center;
    margin-top: 20px;
    color: #1a2332;
    font-size: 11px;
}

/* Анимация для спиннера */
.spinner {
    display: inline-block;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============================================
   Подвал (общий для всех страниц)
   ============================================ */

footer {
    margin-top: 50px;
    text-align: center;
    color: #1a2332;
    font-size: 13px;
    border-top: 1px solid #1a2332;
    padding-top: 25px;
}