/* ============================================================
   Quantacqua - style-shop.css
   Design: "Gauge" system - inspired by the pressure dial itself.
   Deep water teal + safety-orange needle accent, monospace readouts
   for numbers (prices, order numbers, specs) like a real instrument.
   Fully fluid/responsive - no fixed pixel breakp:contentbreak, uses
   clamp() + auto-fit grids so it holds on any screen width.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
    --color-bg: #F4F7F6;
    --color-surface: #FFFFFF;
    --color-ink: #0E2A32;
    --color-ink-soft: #4B6169;
    --color-primary: #0B6E76;
    --color-primary-dark: #084F55;
    --color-accent: #E1662E;
    --color-accent-dark: #C4531F;
    --color-line: #DCE6E4;
    --color-error: #C4432B;
    --color-success: #1C7A4E;

    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'IBM Plex Sans', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;

    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 4px 20px rgba(14, 42, 50, 0.08);
    --shadow-lg: 0 12px 40px rgba(14, 42, 50, 0.16);
    --container: min(1180px, 100% - 2.5rem);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-ink);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0 0 0.5em;
    color: var(--color-ink);
}

a { color: var(--color-primary); }

/* ---------- Gauge signature: quarter-arc dial mark ---------- */
.gauge-mark {
    display: inline-block;
    width: 1em;
    height: 1em;
    border-radius: 50%;
    background: conic-gradient(var(--color-accent) 0deg 120deg, var(--color-line) 120deg 360deg);
    position: relative;
    vertical-align: -0.15em;
}
.gauge-mark::after {
    content: '';
    position: absolute;
    inset: 22%;
    background: var(--color-surface);
    border-radius: 50%;
}

/* ---------- Header ---------- */
.site-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem clamp(1rem, 4vw, 2.5rem);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-line);
    position: sticky;
    top: 0;
    z-index: 20;
}
.logo {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-ink);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5em;
}
.site-header nav {
    display: flex;
    align-items: center;
    gap: clamp(0.75rem, 2vw, 1.5rem);
    flex-wrap: wrap;
}
.site-header nav a {
    text-decoration: none;
    color: var(--color-ink-soft);
    font-size: 0.95rem;
    font-weight: 500;
}
.site-header nav a:hover { color: var(--color-primary); }

.cart-btn {
    background: var(--color-ink);
    color: white;
    border: none;
    border-radius: 999px;
    padding: 0.5em 1em;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    cursor: pointer;
}

/* ---------- Buttons ---------- */
.btn-primary {
    background: var(--color-accent);
    color: white;
    border: none;
    padding: 0.85em 1.4em;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    width: 100%;
    transition: background 0.15s ease, transform 0.1s ease;
}
.btn-primary:hover { background: var(--color-accent-dark); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:focus-visible, .btn-link:focus-visible, input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    text-decoration: underline;
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0;
}

.row-buttons {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

/* ---------- Forms ---------- */
input {
    width: 100%;
    padding: 0.8em 1em;
    margin-bottom: 0.75rem;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    background: var(--color-bg);
    color: var(--color-ink);
}
input::placeholder { color: #93A6AB; }

.error { color: var(--color-error); font-size: 0.9rem; margin-top: 0.5rem; }
.success { color: var(--color-success); font-size: 0.9rem; margin-top: 0.5rem; }
.hint { font-size: 0.9rem; color: var(--color-ink-soft); margin-top: 1rem; }

/* ---------- Auth pages ---------- */
.auth-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}
.auth-card {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: clamp(1.5rem, 5vw, 2.5rem);
    width: 100%;
    max-width: 400px;
}
.auth-card h1 {
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 0.4em;
}
.divider {
    text-align: center;
    color: var(--color-ink-soft);
    font-size: 0.85rem;
    margin: 1.25rem 0;
    position: relative;
}
.divider::before, .divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--color-line);
}
.divider::before { left: 0; }
.divider::after { right: 0; }

/* ---------- Shop layout ---------- */
.shop-main {
    width: var(--container);
    margin: 0 auto;
    padding: clamp(1.5rem, 4vw, 3rem) 0 4rem;
}
.shop-main > h1 {
    font-size: clamp(1.6rem, 3.5vw, 2.3rem);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(240px, 100%), 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.product-card {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.product-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    background: var(--color-line);
}
.product-card h3, .product-card p, .product-card .price {
    padding: 0 1.1rem;
}
.product-card h3 { margin-top: 0.9rem; font-size: 1.1rem; }
.product-card p { color: var(--color-ink-soft); font-size: 0.92rem; flex-grow: 1; }
.product-card .price {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-primary-dark);
}
.product-card .btn-primary { margin: 1rem 1.1rem 1.1rem; width: calc(100% - 2.2rem); }

/* ---------- DIY / GitHub callout ---------- */
.diy-callout {
    margin-top: 3rem;
    background: var(--color-ink);
    color: #E7F0EF;
    border-radius: var(--radius);
    padding: clamp(1.5rem, 4vw, 2.5rem);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.diy-callout h3 { color: white; margin-bottom: 0.3em; }
.diy-callout p { margin: 0; color: #B7C9C7; max-width: 46ch; }
.diy-callout a.btn-github {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    background: transparent;
    border: 1px solid #4C6864;
    color: white;
    text-decoration: none;
    padding: 0.75em 1.3em;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    white-space: nowrap;
}
.diy-callout a.btn-github:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ---------- Cart panel ---------- */
.cart-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(380px, 100%);
    height: 100%;
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
    padding: clamp(1.25rem, 4vw, 2rem);
    overflow-y: auto;
    transition: right 0.25s ease;
    z-index: 30;
}
.cart-panel.open { right: 0; }
.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--color-line);
    font-size: 0.92rem;
}
.cart-item button {
    background: none;
    border: none;
    color: var(--color-error);
    cursor: pointer;
    font-size: 1rem;
}
.cart-total {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 600;
    margin: 1rem 0;
}

/* ---------- Admin ---------- */
.admin-main {
    width: var(--container);
    margin: 0 auto;
    padding: 2rem 0 4rem;
}
.admin-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.admin-tabs button {
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    padding: 0.6em 1.2em;
    border-radius: 999px;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 500;
    color: var(--color-ink-soft);
}
.admin-tabs button.active {
    background: var(--color-ink);
    color: white;
    border-color: var(--color-ink);
}

.table-scroll {
    overflow-x: auto;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
    font-size: 0.92rem;
}
th, td {
    text-align: left;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--color-line);
    white-space: nowrap;
}
th {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-ink-soft);
}
td.order-number { font-family: var(--font-mono); }
select.status-select {
    font-family: var(--font-body);
    padding: 0.4em 0.6em;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-line);
}

.badge {
    display: inline-block;
    padding: 0.25em 0.7em;
    border-radius: 999px;
    font-size: 0.78rem;
    font-family: var(--font-mono);
}
.badge-nova { background: #FDECD8; color: #A85B12; }
.badge-zpracovava_se { background: #DCEEFB; color: #1D5C8A; }
.badge-odeslana { background: #E4E9FE; color: #3B4CB8; }
.badge-dokoncena { background: #DDF3E4; color: #1C7A4E; }
.badge-zrusena { background: #FBE0DD; color: #C4432B; }

/* ---------- Footer / contact ---------- */
.site-footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--color-ink-soft);
    font-size: 0.85rem;
}
.contact-main {
    width: min(680px, 100% - 2.5rem);
    margin: 0 auto;
    padding: clamp(2rem, 5vw, 4rem) 0;
}
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}
.contact-card {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}
.contact-card h3 { font-size: 1rem; }
.contact-card p { color: var(--color-ink-soft); font-family: var(--font-mono); font-size: 0.92rem; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
}

/* ---------- Small screens ---------- */
@media (max-width: 480px) {
    .site-header nav { gap: 0.6rem; font-size: 0.9rem; }
    .cart-panel { width: 100%; }
}