/* ══════════════════════════════════════════════════════════════════
   PANELS
══════════════════════════════════════════════════════════════════ */
.panel {
    position: fixed;
    inset: 0;
    background: var(--body-bg);
    background-size: cover;
    z-index: 200;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#docs-panel   { z-index: 201; }

.panel.open { transform: translateY(0); }

.panel.closing {
    transform: translateY(105%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 1, 1);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 16px 12px;
    padding-top: calc(14px + var(--sa-top) + var(--csa-top));
    flex-shrink: 0;
    background: var(--glass-bg-strong);
    z-index: 10;
    border-bottom: 1px solid var(--glass-border);
}

.panel-title {
    font-family: 'Syne', sans-serif;
    font-size: 17px;
    font-weight: 800;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80%;
    text-align: center;
}

.panel-bottom-nav {
    flex-shrink: 0;
    background: var(--glass-bg-strong);
    border-top: 1px solid var(--glass-border);
    padding: 10px 16px;
    padding-bottom: calc(10px + var(--sa-bottom) + var(--csa-bottom));
    display: flex;
    align-items: center;
    gap: 10px;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 20px;
    height: 44px;
    border-radius: 12px;
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-border-acc);
    color: var(--accent2);
    font-family: 'Syne', sans-serif;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s;
    flex-shrink: 0;
    letter-spacing: 0.2px;
    user-select: none;
    -webkit-user-select: none;
}

.back-btn:active { background: var(--glass-bg-strong); }

/* Dark theme overrides for panels */
[data-theme="dark"] .panel {
    background: linear-gradient(160deg, #040d1a 0%, #071223 50%, #040d1a 100%);
}
[data-theme="dark"] .panel-header {
    background: rgba(7, 18, 35, 0.97);
    border-bottom-color: rgba(44, 150, 150, 0.18);
}
[data-theme="dark"] .panel-bottom-nav {
    background: rgba(7, 18, 35, 0.97);
    border-top-color: rgba(44, 150, 150, 0.18);
}

.panel-body {
    padding: 20px 16px 32px;
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* ═══ PERF FIX: отключаем compositor layers на закрытых панелях ═══ */
.panel:not(.open):not(.closing) {
    will-change: auto;
}
.panel:not(.open):not(.closing) * {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    will-change: auto !important;
}

/* ── PLAN CARDS ── */
.plan {
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 12px;
    position: relative;
    overflow: hidden;
    transition: transform 0.15s;
    box-shadow: 0 2px 12px rgba(44,100,100,0.1);
}

.plan:active  { transform: scale(0.99); }
.plan.featured { border-color: rgba(44, 150, 150, 0.4); }
.plan.best     { border-color: rgba(227, 179, 65,  0.35); }

.plan-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.plan-name { font-family: 'Syne', sans-serif; font-size: 17px; font-weight: 700; letter-spacing: -0.3px; }
.plan-desc { font-size: 12px; color: var(--sub2); margin-top: 3px; font-family: 'DM Sans', sans-serif; font-weight: 300; letter-spacing: 0.2px; }

.plan-tag {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.tag-blue { background: rgba(44,  150, 150, 0.15); color: var(--accent2); border: 1px solid rgba(44,  150, 150, 0.25); }
.tag-gold { background: rgba(227, 179, 65,  0.15); color: var(--gold2);   border: 1px solid rgba(227, 179, 65,  0.25); }

.plan-price {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(28px, 8vw, 40px);
    font-weight: 400;
    color: var(--gold);
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.plan-stripe { position: absolute; bottom: 0; left: 0; right: 0; height: 3px; }
.stripe-blue { background: linear-gradient(90deg, var(--accent), transparent); }
.stripe-gold { background: linear-gradient(90deg, var(--gold),   transparent); }

/* ── FEEDBACK ── */
textarea {
    width: 100%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border-acc);
    color: var(--text);
    padding: 14px;
    border-radius: 14px;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
    line-height: 1.6;
}
textarea:focus { border-color: var(--accent); }
textarea::placeholder { color: var(--sub); }

.char-counter      { text-align: right; font-size: 11px; color: var(--sub); margin-top: 6px; }
.char-counter.warn { color: var(--red); }

/* ── REF BLOCK ── */
.ref-block {
    background: var(--glass-bg);
    border: 1px dashed var(--glass-border-acc);
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 12px;
    color: var(--accent2);
    word-break: break-all;
    margin: 12px 0;
    line-height: 1.5;
    font-family: monospace;
}

/* ── BUTTONS ── */
.btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 14px;
    font-family: 'Syne', sans-serif;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
    letter-spacing: 0.3px;
}
.btn:active   { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; box-shadow: 0 4px 20px rgba(44, 150, 150, 0.3); }
.btn-gold    { background: linear-gradient(135deg, var(--gold), var(--gold2)); color: #0d0d0d; box-shadow: 0 4px 20px rgba(227, 179, 65, 0.25); }
.btn-outline { background: var(--glass-bg); color: var(--accent2); border: 1px solid var(--glass-border-acc); }

.section-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--sub);
    margin-bottom: 12px;
}

/* ── No subscription message ── */
.no-sub-msg { text-align: center; padding: 48px 24px; color: var(--sub); }
.no-sub-msg .ns-icon { font-size: 40px; margin-bottom: 12px; }
.no-sub-msg p { font-size: 14px; line-height: 1.6; }
.pdf-empty { text-align: center; padding: 40px 24px; color: var(--sub); font-size: 14px; }
.pdf-skeleton {
    height: 62px; border-radius: 14px;
    background: linear-gradient(90deg, var(--glass-bg) 25%, var(--glass-bg-strong) 50%, var(--glass-bg) 75%);
    background-size: 200% 100%; animation: shimmer 1.4s infinite; margin-bottom: 8px;
}