:root {
    --bg: #0d0f14;
    --sb-bg: #111318;
    --msg-bg: #1a1c24;
    --user-bg: #1a2a3e;
    --border: #2a2e3a;
    --accent: #4a8fff;
    --text: #ffffff;
    --text2: #aaa;
    --text3: #888;
    --btn-bg: #252833;
    --hover: #252833;
    --item-bg: #1a1c24;
    --item-hover: #252833;
    --danger: #e06c75;
    --green: #4ade80;
    --gold: #f59e0b;
}
[data-theme="light"] {
    --bg: #f0f2f7;
    --sb-bg: #ffffff;
    --msg-bg: #ffffff;
    --user-bg: #dbeafe;
    --border: #d1d5db;
    --accent: #3b82f6;
    --text: #111827;
    --text2: #4b5563;
    --text3: #6b7280;
    --btn-bg: #e5e7eb;
    --hover: #e5e7eb;
    --item-bg: #f9fafb;
    --item-hover: #f3f4f6;
    --danger: #ef4444;
    --green: #16a34a;
    --gold: #d97706;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Segoe UI', 'Noto Sans Armenian', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: background .3s, color .3s;
}
.topbar-global {
    height: 48px;
    background: var(--sb-bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    flex-shrink: 0;
    gap: 8px;
}
.topbar-left { display: flex; align-items: center; gap: 8px; }
.topbar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.plan-badge {
    background: rgba(245,158,11,0.15);
    border: 1px solid var(--gold);
    color: var(--gold);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 20px;
    cursor: pointer;
}
.q-counter {
    font-size: 11px;
    color: var(--text3);
    background: var(--btn-bg);
    padding: 3px 10px;
    border-radius: 20px;
}
.q-counter span { color: var(--accent); font-weight: 700; }
.icon-btn {
    background: var(--btn-bg);
    border: none;
    color: var(--text);
    font-size: 16px;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: .2s;
}
.icon-btn:hover { background: var(--accent); }
.layout { display: flex; flex: 1; overflow: hidden; }
.sidebar {
    width: 270px;
    background: var(--sb-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 14px;
    transition: transform 0.3s ease;
    z-index: 100;
    flex-shrink: 0;
}
.logo {
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 12px;
    color: var(--text);
}
.logo span { font-size: 10px; color: var(--accent); display: block; margin-top: 3px; }
.new-chat-btn {
    background: var(--accent);
    border: none;
    padding: 9px;
    border-radius: 10px;
    color: white;
    font-weight: bold;
    cursor: pointer;
    margin-bottom: 10px;
    width: 100%;
    font-family: inherit;
    font-size: 13px;
}
.search-wrap { position: relative; margin-bottom: 10px; }
.search-wrap input {
    width: 100%;
    background: var(--item-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 10px 7px 30px;
    color: var(--text);
    font-size: 12px;
    outline: none;
    font-family: inherit;
}
.search-wrap input:focus { border-color: var(--accent); }
.search-wrap input::placeholder { color: var(--text3); }
.search-ico { position: absolute; left: 9px; top: 50%; transform: translateY(-50%); color: var(--text3); font-size: 13px; }
.section-title { font-size: 10px; color: var(--text3); margin: 10px 0 6px; text-transform: uppercase; display: flex; justify-content: space-between; align-items: center; }
.chat-list, .doc-list, .fav-list { font-size: 12px; max-height: 160px; overflow-y: auto; }
.chat-item, .doc-item, .fav-item {
    background: var(--item-bg);
    padding: 7px 9px;
    border-radius: 8px;
    margin-bottom: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 12px;
}
.chat-item:hover, .doc-item:hover, .fav-item:hover { background: var(--item-hover); }
.chat-item.active { background: rgba(74,143,255,0.15); border-left: 3px solid var(--accent); }
.delete-btn { background: none; border: none; color: var(--danger); cursor: pointer; font-size: 13px; padding: 0 3px; }
.no-data { color: var(--text3); font-size: 11px; text-align: center; padding: 6px; }
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}
.subtopbar {
    padding: 8px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    background: var(--sb-bg);
}
.lang-selector { display: flex; gap: 6px; }
.lang-btn {
    background: var(--btn-bg);
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 11px;
    cursor: pointer;
    border: none;
    color: var(--text);
    font-family: inherit;
}
.lang-btn.active { background: var(--accent); color: white; }
.chat-area {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    scroll-behavior: smooth;
}
.message { margin-bottom: 16px; max-width: 82%; position: relative; }
.user-message { margin-left: auto; background: var(--user-bg); border-radius: 16px 16px 4px 16px; padding: 12px 15px; }
.ai-message { background: var(--msg-bg); border-radius: 16px 16px 16px 4px; padding: 12px 15px; border-left: 3px solid var(--accent); }
.message-name { font-size: 10px; margin-bottom: 5px; color: var(--text2); display: flex; align-items: center; gap: 6px; justify-content: space-between; }
.msg-actions { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 8px; }
.msg-act-btn {
    background: var(--btn-bg);
    border: 1px solid var(--border);
    color: var(--text2);
    font-size: 11px;
    padding: 3px 9px;
    border-radius: 14px;
    cursor: pointer;
    font-family: inherit;
    transition: .2s;
}
.msg-act-btn:hover { border-color: var(--accent); color: var(--accent); }
.msg-act-btn.fav { color: var(--gold); border-color: var(--gold); }
.edit-wrap { display: none; margin-top: 8px; }
.edit-wrap textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--accent);
    color: var(--text);
    border-radius: 8px;
    padding: 8px;
    font-size: 13px;
    resize: none;
    font-family: inherit;
}
.edit-acts { display: flex; gap: 6px; margin-top: 5px; }
.edit-save { background: var(--accent); border: none; color: white; padding: 4px 12px; border-radius: 8px; cursor: pointer; font-family: inherit; font-size: 12px; }
.edit-cancel { background: var(--btn-bg); border: none; color: var(--text2); padding: 4px 12px; border-radius: 8px; cursor: pointer; font-family: inherit; font-size: 12px; }
.input-area { padding: 12px 16px; border-top: 1px solid var(--border); background: var(--sb-bg); }
.input-area textarea {
    width: 100%;
    background: var(--item-bg);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 12px;
    padding: 10px;
    font-size: 13px;
    resize: none;
    font-family: inherit;
    transition: border .2s;
}
.input-area textarea:focus { outline: none; border-color: var(--accent); }
.input-tools { display: flex; gap: 7px; margin-top: 8px; flex-wrap: wrap; align-items: center; }
.tool-btn {
    background: var(--btn-bg);
    border: none;
    color: var(--text);
    padding: 7px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    font-family: inherit;
    transition: .2s;
    white-space: nowrap;
}
.tool-btn:hover { background: var(--accent); color: white; }
.recording { background: #8b3c3c !important; animation: pulse 1s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.6} }
.send-btn { background: var(--accent) !important; color: white !important; margin-left: auto; }
.welcome { text-align: center; padding: 40px 20px; color: var(--text3); }
.thinking { text-align: center; font-size: 12px; color: var(--accent); margin: 8px 0; }
.system-msg-wrap { text-align: center; }
.system-msg {
    display: inline-block;
    font-size: 10px;
    color: var(--accent);
    margin: 6px 0;
    padding: 4px 12px;
    background: rgba(74,143,255,.08);
    border-radius: 16px;
}
.system-msg.err { color: var(--danger); background: rgba(224,108,117,.08); }
.footer-note {
    text-align: center;
    font-size: 8.4px;
    color: var(--text3);
    border-top: 1px solid var(--border);
    padding: 8px 10px;
    margin-top: 20px;
    width: 100%;
    background: var(--bg);
    flex-shrink: 0;
}
.chat-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.toast {
    position: fixed;
    top: 56px;
    right: 16px;
    background: var(--sb-bg);
    border: 1px solid var(--accent);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 13px;
    z-index: 9999;
    max-width: 280px;
    box-shadow: 0 4px 20px rgba(0,0,0,.3);
    animation: slideIn .3s ease;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.toast.gold { border-color: var(--gold); }
.toast-close { background: none; border: none; color: var(--text3); cursor: pointer; font-size: 14px; margin-left: auto; flex-shrink: 0; }
@keyframes slideIn { from{transform:translateX(120%);opacity:0} to{transform:translateX(0);opacity:1} }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.8); backdrop-filter: blur(12px); display: flex; align-items: center; justify-content: center; z-index: 9999; }
.modal.hide { display: none; }
.modal-card {
    background: var(--sb-bg);
    border: 1px solid var(--accent);
    border-radius: 20px;
    padding: 28px;
    max-width: 460px;
    width: 92%;
    text-align: center;
}
.modal-card h2 { font-size: 20px; margin-bottom: 8px; }
.modal-card p { font-size: 13px; color: var(--text2); margin-bottom: 20px; line-height: 1.6; }
.plans-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 18px; }
.plan-card {
    background: var(--item-bg);
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 14px;
    cursor: pointer;
    transition: .2s;
    position: relative;
    text-align: left;
}
.plan-card.selected, .plan-card:hover { border-color: var(--accent); background: rgba(74,143,255,.07); }
.plan-card.popular::before { content:'Популярный'; position:absolute; top:-9px; left:50%; transform:translateX(-50%); background:var(--accent); color:#fff; font-size:9px; font-weight:700; padding:2px 8px; border-radius:8px; white-space:nowrap; }
.plan-price { font-size: 20px; font-weight: 800; }
.plan-price small { font-size: 11px; font-weight: 400; color: var(--text3); }
.plan-name { font-size: 12px; color: var(--text2); margin-top: 3px; }
.plan-feats { font-size: 11px; color: var(--text3); margin-top: 8px; line-height: 1.7; }
.plan-feats div::before { content:'✓ '; color: var(--green); }
.pay-btn { width:100%; background:var(--accent); border:none; border-radius:10px; padding:12px; color:#fff; font-size:14px; font-weight:700; cursor:pointer; font-family:inherit; margin-bottom:8px; }
.modal-close { background:none; border:none; color:var(--text3); font-size:12px; cursor:pointer; font-family:inherit; }
.hamburger { display: none; background: var(--btn-bg); border: none; color: var(--text); font-size: 20px; cursor: pointer; width: 34px; height: 34px; border-radius: 8px; align-items: center; justify-content: center; }
@media(max-width:640px) {
    .sidebar { position: fixed; transform: translateX(-100%); height: 100%; z-index: 200; top: 0; left: 0; width: 260px; }
    .sidebar.open { transform: translateX(0); }
    .hamburger { display: flex; }
    .message { max-width: 96%; }
    .plans-grid { grid-template-columns: 1fr; }
}