/* ========== ОСНОВНЫЕ СТИЛИ ========== */
:root {
    --primary: #2c3e50;
    --accent: #3498db;
    --accent-hover: #2980b9;
    --text: #333;
    --light-text: #777;
    --background: #f8f9fa;
    --card-bg: #ffffff;
    --border: #e1e4e8;
    --shadow: rgba(0, 0, 0, 0.1);
    --success: #27ae60;
}

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

body {
    font-family: 'Segoe UI','Roboto','Helvetica Neue',Arial,sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--background);
    padding: 2rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 2.0rem;
    padding-bottom: 1.2rem;
    border-bottom: 1px solid var(--border);
}

h1 { font-size: 2.2rem; margin-bottom: .4rem; color: var(--primary); }
.subtitle { font-size: 1.05rem; color: var(--light-text); max-width: 640px; margin: 0 auto; }

/* ===== Категории и фильтры ===== */
.controls.categories {
    display: grid;
    gap: 1rem;
    margin: 1rem 0 0.5rem;
}

.cat-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.cat-btn {
    padding: 0.55rem 0.9rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    color: var(--primary);
    transition: background .2s, border-color .2s, transform .1s;
}

.cat-btn:hover { border-color: var(--accent); }
.cat-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.controls .filters {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 0.8rem;
    align-items: center;
}

.controls input[type="search"], .controls select {
    padding: 0.7rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    font-size: 0.95rem;
}

.controls .results {
    justify-self: end;
    color: var(--light-text);
    font-size: 0.9rem;
}

/* ===== Список файлов и карточки ===== */
.file-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1.0rem;
}

.file-card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--shadow);
    overflow: hidden;
    transition: transform .2s ease, box-shadow .2s ease;
    display: flex; flex-direction: column;
}
.file-card:hover { transform: translateY(-4px); box-shadow: 0 6px 16px rgba(0,0,0,.15); }

.file-header { padding: 1.2rem 1.2rem 0.8rem; border-bottom: 1px solid var(--border); }
.filename { font-size: 1.15rem; margin-bottom: 0.4rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-description { color: var(--light-text); font-size: .95rem; line-height: 1.5; }

.file-details { padding: 1.2rem; display: flex; flex-direction: column; flex-grow: 1; }
.file-meta { display: flex; justify-content: space-between; margin-bottom: .9rem; font-size: .9rem; color: var(--light-text); }

.file-actions { margin-top: auto; display: flex; flex-direction: column; gap: .8rem; }
.download-btn {
    display: flex; align-items: center; justify-content: center; gap: .5rem;
    padding: 0.7rem 1.3rem; background: var(--accent); color: #fff; text-decoration: none;
    border-radius: 8px; font-weight: 600; transition: background .2s;
}
.download-btn:hover { background: var(--accent-hover); }

.hash-group { margin-top: .4rem; }
.hash-box { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.sha1-hash {
    flex-grow: 1; padding: 0.6rem 0.9rem;
    font-family: 'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;
    font-size: .85rem; overflow: hidden; text-overflow: ellipsis; background: #f8fafc;
}
.copy-btn {
    padding: 0 1.0rem; background: #f1f3f5; border: none; border-left: 1px solid var(--border);
    cursor: pointer; transition: background .2s; font-size: 1.05rem;
}
.copy-btn:hover { background: #e9ecef; }

#toast {
    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
    background: var(--primary); color: #fff; padding: 0.9rem 1.6rem;
    border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,.15); display: none; z-index: 1000;
}

.empty-state { text-align: center; padding: 2rem; grid-column: 1 / -1; }
.empty-state h2 { color: var(--light-text); margin-bottom: 1rem; }

/* ===== Главная — сервис-карточки (если используешь) ===== */
.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; margin-top: 3rem; }
.service-card { background: var(--card-bg); padding: 2rem; border-radius: 12px; box-shadow: 0 4px 12px var(--shadow); transition: transform .2s; text-align: center; }
.service-card:hover { transform: translateY(-4px); }
.service-card h2 { font-size: 1.5rem; margin-bottom: 1rem; color: var(--primary); }
.service-card p { color: var(--light-text); margin-bottom: 1rem; }
.service-card .service-meta { color: var(--light-text); font-size: .9rem; margin-bottom: 1rem; }
.service-btn { display: inline-block; padding: 0.8rem 2rem; background: var(--accent); color: #fff; border-radius: 8px; text-decoration: none; font-weight: 700; }
.service-btn:hover { background: var(--accent-hover); }

/* ===== Кнопки/ссылки общего назначения ===== */
.btn {
    display: inline-block; padding: 0.8rem 2.0rem; background: var(--accent); color: #fff; text-decoration: none;
    border-radius: 8px; font-weight: 600; font-size: 1rem; transition: all .2s; border: 2px solid transparent;
}
.btn:hover { background: transparent; border-color: var(--accent); color: var(--accent); }

/* ===== Адаптив ===== */
@media (max-width: 1024px) {
    .file-list { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
}
@media (max-width: 768px) {
    .controls .filters { grid-template-columns: 1fr; gap: .7rem; }
    .controls .results { justify-self: start; }
    .file-list { grid-template-columns: 1fr; }
    h1 { font-size: 1.8rem; }
}