/* === Školní katalog – CSS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --sk-primary:      #1a3a5c;
    --sk-primary-light:#2255a4;
    --sk-accent:       #2e7bd4;
    --sk-accent-hover: #1a5faa;
    --sk-green:        #16a34a;
    --sk-green-hover:  #15803d;
    --sk-light:        #f0f4f8;
    --sk-bg:           #f5f7fa;
    --sk-border:       #e2e8f0;
    --sk-text:         #1e293b;
    --sk-muted:        #64748b;
    --sk-card-bg:      #ffffff;
    --sk-radius:       12px;
    --sk-radius-sm:    8px;
    --sk-shadow:       0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.06);
    --sk-shadow-hover: 0 8px 32px rgba(26,58,92,0.14);
}
* { box-sizing: border-box; }
.sk-catalog { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: var(--sk-text); background: var(--sk-bg); min-height: 100vh; }

/* AUTH */
.sk-auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 40px 16px; background: linear-gradient(145deg, #0f2540 0%, #1a3a5c 50%, #1e4d8c 100%); }
.sk-auth-box { background: #fff; border-radius: 20px; padding: 52px 44px; max-width: 440px; width: 100%; text-align: center; box-shadow: 0 24px 80px rgba(0,0,0,0.3); }
.sk-auth-logo { max-height: 72px; margin-bottom: 24px; }
.sk-auth-title { font-size: 24px; font-weight: 700; color: var(--sk-primary); margin-bottom: 4px; }
.sk-auth-box h2 { color: var(--sk-primary); margin: 0 0 6px; font-size: 22px; font-weight: 700; }
.sk-auth-box p  { color: var(--sk-muted); margin: 0 0 28px; font-size: 15px; }
.sk-auth-form input[type="password"] { width: 100%; padding: 13px 18px; border: 2px solid var(--sk-border); border-radius: var(--sk-radius-sm); font-size: 16px; margin-bottom: 14px; transition: border-color .2s; font-family: inherit; }
.sk-auth-form input[type="password"]:focus { border-color: var(--sk-accent); outline: none; }
.sk-auth-form button { width: 100%; padding: 14px; background: var(--sk-primary); color: #fff; border: none; border-radius: var(--sk-radius-sm); font-size: 16px; font-weight: 600; cursor: pointer; transition: background .2s; font-family: inherit; }
.sk-auth-form button:hover { background: var(--sk-primary-light); }
.sk-error { background: #fef2f2; color: #dc2626; padding: 11px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; border: 1px solid #fecaca; }

/* HEADER */
.sk-header { background: linear-gradient(135deg, var(--sk-primary) 0%, var(--sk-primary-light) 100%); color: #fff; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 12px rgba(0,0,0,0.2); }
.sk-header-inner { max-width: 100%; margin: 0 auto; padding: 0 28px; display: flex; align-items: center; justify-content: space-between; height: 66px; }
.sk-logo { max-height: 44px; }
.sk-firm-name { font-size: 20px; font-weight: 700; letter-spacing: -.3px; }
.sk-cart-btn { display: flex; align-items: center; gap: 10px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); border-radius: 50px; padding: 9px 18px; cursor: pointer; transition: all .2s; user-select: none; }
.sk-cart-btn:hover { background: rgba(255,255,255,0.22); }
.sk-cart-icon { font-size: 17px; }
.sk-cart-label { font-size: 14px; font-weight: 600; }
.sk-cart-count { background: #ef4444; color: #fff; border-radius: 50%; min-width: 22px; height: 22px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; padding: 0 4px; }

/* TOOLBAR */
.sk-toolbar { max-width: 100%; margin: 0 auto; padding: 24px 28px 0; }
.sk-search-input { width: 100%; max-width: 460px; padding: 12px 18px 12px 44px; border: 2px solid var(--sk-border); border-radius: 50px; font-size: 15px; margin-bottom: 16px; font-family: inherit; background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E") no-repeat 14px center; transition: border-color .2s, box-shadow .2s; }
.sk-search-input:focus { border-color: var(--sk-accent); outline: none; box-shadow: 0 0 0 3px rgba(46,123,212,.1); }
.sk-filters { display: flex; flex-wrap: wrap; gap: 8px; padding-bottom: 20px; border-bottom: 1px solid var(--sk-border); }
.sk-filter-btn { padding: 7px 18px; border-radius: 50px; border: 2px solid var(--sk-border); background: #fff; color: var(--sk-muted); font-size: 13px; font-weight: 600; font-family: inherit; cursor: pointer; transition: all .18s; }
.sk-filter-btn:hover  { border-color: var(--sk-accent); color: var(--sk-accent); background: #eff6ff; }
.sk-filter-btn.active { background: var(--sk-primary); border-color: var(--sk-primary); color: #fff; box-shadow: 0 2px 8px rgba(26,58,92,.25); }

/* GRID */
.sk-grid { max-width: 100%; margin: 0 auto; padding: 24px 28px 80px; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 18px; }

/* CARD */
.sk-card { background: var(--sk-card-bg); border-radius: var(--sk-radius); box-shadow: var(--sk-shadow); border: 1px solid var(--sk-border); display: flex; flex-direction: column; transition: box-shadow .25s, transform .25s; overflow: hidden; position: relative; }
.sk-card:hover { box-shadow: var(--sk-shadow-hover); transform: translateY(-3px); }
.sk-card.sk-hidden { display: none; }
.sk-card.sk-in-cart { border-color: var(--sk-accent); box-shadow: 0 0 0 2px rgba(46,123,212,.25), var(--sk-shadow); }
.sk-card.sk-in-cart::after { content: '✓'; position: absolute; top: 10px; right: 10px; background: var(--sk-green); color: #fff; border-radius: 50%; width: 26px; height: 26px; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; box-shadow: 0 2px 6px rgba(0,0,0,.2); }
.sk-card-img-wrap { height: 210px; overflow: hidden; cursor: pointer; display: flex; align-items: center; justify-content: center; background: var(--sk-light); position: relative; }
.sk-card-img { width: 100%; height: 100%; object-fit: contain; padding: 10px; transition: transform .35s; }
.sk-card:hover .sk-card-img { transform: scale(1.04); }
.sk-card-img-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 60px; color: #cbd5e1; }
.sk-card-body { padding: 18px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.sk-card-cat { display: none; }
.sk-card-title { margin: 0; font-size: 16px; font-weight: 700; line-height: 1.35; color: var(--sk-primary); cursor: pointer; transition: color .18s; }
.sk-card-title:hover { color: var(--sk-accent); }
.sk-card-desc { font-size: 13px; color: var(--sk-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.sk-card-desc p { margin: 0 0 4px; }
.sk-detail-btn { background: none; border: none; color: var(--sk-accent); font-size: 12px; font-weight: 600; cursor: pointer; padding: 0; text-decoration: underline; font-family: inherit; width: fit-content; }
.sk-detail-btn:hover { color: var(--sk-primary); }
.sk-card-prices { background: var(--sk-light); border-radius: 8px; padding: 10px 14px; margin-top: 2px; }
.sk-price-bez { font-size: 12px; color: var(--sk-muted); margin-bottom: 3px; }
.sk-price-s   { font-size: 18px; font-weight: 700; color: var(--sk-green); }
.sk-price-nodisplay { font-size: 14px; color: var(--sk-muted); font-style: italic; }
.sk-financ { background: #eff6ff; border-radius: 8px; padding: 2px 12px; font-size: 12px; border: 1px solid #bfdbfe; }
.sk-financ summary { cursor: pointer; font-weight: 600; color: var(--sk-primary-light); padding: 8px 0; list-style: none; }
.sk-financ summary::-webkit-details-marker { display: none; }
.sk-financ-body { padding: 4px 0 8px; color: var(--sk-text); line-height: 1.6; }
.sk-gallery-btn { background: none; border: 1px solid var(--sk-border); border-radius: 6px; padding: 5px 10px; font-size: 11px; cursor: pointer; color: var(--sk-muted); width: fit-content; transition: all .18s; font-family: inherit; }
.sk-gallery-btn:hover { border-color: var(--sk-accent); color: var(--sk-accent); background: #eff6ff; }
.sk-card-footer { padding: 14px 18px; border-top: 1px solid var(--sk-border); }
.sk-add-btn { width: 100%; padding: 11px; border-radius: var(--sk-radius-sm); border: 2px solid var(--sk-accent); background: #fff; color: var(--sk-accent); font-size: 14px; font-weight: 700; cursor: pointer; transition: all .2s; font-family: inherit; }
.sk-add-btn:hover        { background: var(--sk-accent); color: #fff; }
.sk-add-btn.sk-added     { background: var(--sk-green); border-color: var(--sk-green); color: #fff; }
.sk-add-btn.sk-added:hover { background: var(--sk-green-hover); border-color: var(--sk-green-hover); }
.sk-no-results { grid-column: 1/-1; text-align: center; padding: 80px 20px; color: var(--sk-muted); font-size: 16px; }

/* INQUIRY PANEL */
.sk-inquiry-panel { position: fixed; right: -440px; top: 0; bottom: 0; width: 420px; max-width: 96vw; background: #fff; z-index: 200; box-shadow: -8px 0 40px rgba(0,0,0,0.15); transition: right .3s cubic-bezier(.4,0,.2,1); display: flex; flex-direction: column; }
.sk-inquiry-panel.sk-open { right: 0; }
.sk-inquiry-inner { padding: 0; display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.sk-inquiry-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; background: var(--sk-primary); color: #fff; flex-shrink: 0; }
.sk-inquiry-header h3 { margin: 0; font-size: 18px; font-weight: 700; }
.sk-inquiry-close { background: rgba(255,255,255,0.15); border: none; font-size: 18px; cursor: pointer; color: #fff; padding: 6px 10px; border-radius: 6px; transition: background .18s; line-height: 1; }
.sk-inquiry-close:hover { background: rgba(255,255,255,0.28); }
.sk-inquiry-scroll { flex: 1; overflow-y: auto; padding: 20px 24px; }
.sk-inquiry-empty { color: var(--sk-muted); font-size: 14px; text-align: center; padding: 30px 0; }
.sk-inquiry-item { display: flex; align-items: flex-start; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--sk-border); }
.sk-inquiry-item-num { background: var(--sk-accent); color: #fff; border-radius: 50%; width: 22px; height: 22px; min-width: 22px; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; margin-top: 1px; }
.sk-inquiry-item-title { flex: 1; font-weight: 600; line-height: 1.4; font-size: 14px; }
.sk-inquiry-item-remove { background: none; border: none; color: #94a3b8; cursor: pointer; font-size: 18px; padding: 0 2px; line-height: 1; transition: color .18s; }
.sk-inquiry-item-remove:hover { color: #ef4444; }
.sk-inquiry-form { padding: 0 24px 24px; border-top: 1px solid var(--sk-border); }
.sk-inquiry-form h4 { margin: 16px 0 14px; color: var(--sk-primary); font-size: 15px; }
.sk-inquiry-form input, .sk-inquiry-form textarea { width: 100%; margin-bottom: 10px; padding: 10px 14px; border: 2px solid var(--sk-border); border-radius: var(--sk-radius-sm); font-size: 14px; font-family: inherit; transition: border-color .18s; }
.sk-inquiry-form input:focus, .sk-inquiry-form textarea:focus { border-color: var(--sk-accent); outline: none; }
.sk-inquiry-form textarea { height: 80px; resize: vertical; }
.sk-send-btn { width: 100%; padding: 13px; border-radius: var(--sk-radius-sm); background: var(--sk-green); color: #fff; border: none; font-size: 15px; font-weight: 700; cursor: pointer; transition: background .2s; font-family: inherit; }
.sk-send-btn:hover { background: var(--sk-green-hover); }
.sk-send-btn:disabled { background: #94a3b8; cursor: not-allowed; }
.sk-inquiry-gdpr { font-size: 11px; color: var(--sk-muted); text-align: center; margin: 8px 0 0; }
.sk-inquiry-error { background: #fef2f2; color: #dc2626; padding: 10px 14px; border-radius: 8px; margin-bottom: 12px; font-size: 13px; border: 1px solid #fecaca; }
.sk-inquiry-success { text-align: center; padding: 50px 24px; }
.sk-success-icon { font-size: 56px; margin-bottom: 16px; }
.sk-inquiry-success h4 { color: var(--sk-green); font-size: 22px; margin: 0 0 10px; }

/* OVERLAY */
.sk-overlay, .sk-lb-overlay { display: none; position: fixed; inset: 0; background: rgba(15,37,64,0.6); z-index: 190; backdrop-filter: blur(2px); }
.sk-overlay.sk-open, .sk-lb-overlay.sk-open { display: block; }

/* MODAL */
.sk-modal-overlay { display: none; position: fixed; inset: 0; background: rgba(15,37,64,0.65); z-index: 400; align-items: center; justify-content: center; padding: 20px; backdrop-filter: blur(3px); }
.sk-modal-overlay.sk-open { display: flex; }
.sk-modal { background: #fff; border-radius: 16px; max-width: 820px; width: 100%; max-height: 92vh; overflow-y: auto; box-shadow: 0 24px 80px rgba(0,0,0,0.3); position: relative; }
.sk-modal-close { position: absolute; top: 16px; right: 16px; background: #f1f5f9; border: none; border-radius: 50%; width: 38px; height: 38px; font-size: 18px; cursor: pointer; z-index: 10; display: flex; align-items: center; justify-content: center; color: var(--sk-muted); transition: all .18s; }
.sk-modal-close:hover { background: #e2e8f0; color: var(--sk-text); }
.sk-modal-body { padding: 28px 32px 32px; }
.sk-modal-img { width: 100%; max-height: 360px; object-fit: contain; border-radius: 12px; margin-bottom: 24px; background: var(--sk-light); padding: 12px; }
.sk-modal-cat { font-size: 12px; font-weight: 700; color: var(--sk-accent); letter-spacing: .7px; text-transform: uppercase; margin-bottom: 8px; }
.sk-modal-title { font-size: 26px; font-weight: 700; color: var(--sk-primary); margin: 0 0 20px; line-height: 1.2; padding-right: 50px; }
.sk-modal-prices { display: flex; gap: 16px; margin-bottom: 20px; background: var(--sk-light); border-radius: 10px; padding: 14px 18px; flex-wrap: wrap; align-items: center; }
.sk-modal-price-bez { font-size: 14px; color: var(--sk-muted); }
.sk-modal-price-s  { font-size: 24px; font-weight: 700; color: var(--sk-green); }
.sk-modal-desc { font-size: 15px; line-height: 1.75; color: var(--sk-text); margin-bottom: 20px; }
.sk-modal-desc ul { padding-left: 22px; margin: 8px 0; }
.sk-modal-financ { background: #eff6ff; border-radius: 10px; padding: 14px 18px; font-size: 14px; margin-bottom: 20px; border: 1px solid #bfdbfe; }
.sk-modal-financ strong { display: block; margin-bottom: 8px; color: var(--sk-primary-light); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.sk-modal-gallery { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.sk-modal-gallery img { width: 76px; height: 76px; object-fit: cover; border-radius: 8px; cursor: pointer; border: 2px solid transparent; transition: all .18s; background: var(--sk-light); }
.sk-modal-gallery img:hover { border-color: var(--sk-accent); transform: scale(1.05); }
.sk-modal-add-btn { width: 100%; padding: 15px; border-radius: var(--sk-radius-sm); border: 2px solid var(--sk-accent); background: #fff; color: var(--sk-accent); font-size: 16px; font-weight: 700; cursor: pointer; transition: all .2s; font-family: inherit; }
.sk-modal-add-btn:hover { background: var(--sk-accent); color: #fff; }
.sk-modal-add-btn.sk-added { background: var(--sk-green); border-color: var(--sk-green); color: #fff; }

/* LIGHTBOX */
.sk-lightbox { display: none; position: fixed; inset: 0; z-index: 500; align-items: center; justify-content: center; flex-direction: column; }
.sk-lightbox.sk-open { display: flex; }
.sk-lb-img { max-height: 92vh; max-width: 92vw; border-radius: 10px; box-shadow: 0 16px 60px rgba(0,0,0,0.5); object-fit: contain; background: #fff; width: auto; height: auto; }
.sk-lb-close { position: absolute; top: 18px; right: 22px; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3); color: #fff; font-size: 26px; cursor: pointer; border-radius: 50%; width: 46px; height: 46px; display: flex; align-items: center; justify-content: center; z-index: 510; }
.sk-lb-prev, .sk-lb-next { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25); color: #fff; font-size: 32px; cursor: pointer; border-radius: 50%; width: 54px; height: 54px; display: flex; align-items: center; justify-content: center; z-index: 510; }
.sk-lb-prev { left: 18px; } .sk-lb-next { right: 18px; }
.sk-lb-thumbs { display: flex; gap: 10px; margin-top: 16px; z-index: 510; flex-wrap: wrap; justify-content: center; max-width: 90vw; }
.sk-lb-thumb { width: 60px; height: 60px; object-fit: cover; border-radius: 6px; cursor: pointer; border: 2px solid rgba(255,255,255,0.3); opacity: .65; transition: all .18s; }
.sk-lb-thumb:hover, .sk-lb-thumb.sk-active { border-color: #fff; opacity: 1; }

/* RESPONSIVE */
@media (max-width: 640px) {
    .sk-header-inner { padding: 0 16px; height: 58px; }
    .sk-toolbar { padding: 16px 16px 0; }
    .sk-grid { padding: 16px 16px 60px; gap: 16px; grid-template-columns: 1fr; }
    .sk-auth-box { padding: 36px 24px; }
    .sk-inquiry-panel { width: 100%; }
    .sk-modal-body { padding: 20px 20px 24px; }
}