/* ==========================================================================
   MECHELEC SUPPLY — style.css
   Palette: gunmetal slate (dominant) + steel blue (structure) + copper
   (the one accent, used only for CTAs / live states).
   Type: Oswald (headings) + Inter (body) + IBM Plex Mono (spec numbers).
   ========================================================================== */

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

:root {
  --ink:      #14162B;   /* deep navy-ink for text, not pure black */
  --slate:    #2451FF;   /* now used as the primary brand blue (was dark slate) */
  --slate-2:  #6E3CFF;   /* violet, paired with blue for the hero gradient */
  --steel:    #2451FF;
  --steel-l:  #C9D6FF;
  --copper:   #FF6B35;   /* bright orange — primary CTA accent */
  --copper-d: #E4521E;
  --bg:       #F5F7FF;
  --white:    #FFFFFF;
  --line:     #E3E7F5;
  --muted:    #5B6580;
  --good:     #16A34A;
  --yellow:   #FFC93C;   /* second bright accent — badges, highlights */
  --pink:     #FF3D8A;   /* third bright accent — used sparingly for emphasis */

  --font-display: 'Oswald', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 6px;
  --shadow: 0 2px 6px rgba(36,81,255,0.08), 0 12px 28px rgba(36,81,255,0.12);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-body); color: var(--ink); background: var(--bg); line-height: 1.55; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--copper); outline-offset: 2px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; margin: 0 0 0.4em; color: var(--ink); text-transform: uppercase; letter-spacing: 0.01em; }
h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 700; line-height: 1.05; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.1; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; color: var(--muted); }

.eyebrow { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--copper-d); display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.eyebrow::before { content: ''; width: 18px; height: 2px; background: var(--copper); display: inline-block; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; padding: 13px 24px; border-radius: var(--radius); border: 1px solid transparent; cursor: pointer; transition: transform 0.15s ease, background 0.15s ease, border-color .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--copper); color: var(--white); }
.btn-primary:hover { background: var(--copper-d); }
.btn-ghost { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.35); }
.btn-ghost:hover { border-color: var(--white); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--slate); }
.btn-outline:hover { background: var(--slate); color: var(--white); }
.btn-block { width: 100%; justify-content: center; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ---------- Header / Nav ---------- */
.site-header { background: var(--ink); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(255,255,255,0.08); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--white); font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; letter-spacing: 0.02em; }
.brand-mark { width: 34px; height: 34px; background: var(--copper); border-radius: 2px; position: relative; flex-shrink: 0; }
.brand-mark::before, .brand-mark::after { content: ''; position: absolute; background: var(--ink); }
.brand-mark::before { width: 14px; height: 3px; top: 10px; left: 10px; }
.brand-mark::after { width: 3px; height: 14px; top: 10px; left: 20px; }
.brand small { display: block; font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.18em; color: var(--steel-l); text-transform: uppercase; font-weight: 500; }
.nav-links { display: flex; gap: 30px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: rgba(255,255,255,0.75); font-size: 0.9rem; font-weight: 500; padding: 6px 0; border-bottom: 2px solid transparent; transition: color .15s, border-color .15s; }
.nav-links a:hover, .nav-links a.active { color: var(--white); border-color: var(--copper); }
.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-toggle { display: none; background: none; border: none; color: var(--white); font-size: 1.6rem; cursor: pointer; }

@media (max-width: 860px) {
  .nav-links { position: fixed; top: 72px; left: 0; right: 0; background: var(--ink); flex-direction: column; gap: 0; max-height: 0; overflow: hidden; transition: max-height .25s ease; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .nav-links.open { max-height: 400px; }
  .nav-links a { display: block; padding: 14px 24px; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .nav-toggle { display: block; }
  .nav-cta .btn-ghost { display: none; }
}

/* ---------- Hero ---------- */
.hero { background: linear-gradient(135deg, var(--ink) 0%, var(--slate) 60%, var(--slate-2) 100%); color: var(--white); padding: 90px 0 70px; position: relative; overflow: hidden; }
.hero::after { content: ''; position: absolute; right: -60px; top: -60px; width: 380px; height: 380px; border: 1px solid rgba(255,255,255,0.06); border-radius: 50%; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 50px; align-items: center; position: relative; z-index: 1; }
.hero p.lead { color: rgba(255,255,255,0.72); font-size: 1.05rem; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 34px; margin-top: 44px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.12); }
.hero-stats div strong { display: block; font-family: var(--font-display); font-size: 1.7rem; color: var(--copper); }
.hero-stats div span { font-size: 0.76rem; color: rgba(255,255,255,0.6); text-transform: uppercase; letter-spacing: 0.06em; }
.hero-plate { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.12); border-radius: 4px; padding: 26px; font-family: var(--font-mono); font-size: 0.82rem; color: var(--steel-l); }
.hero-plate-light { color: var(--muted); background: var(--white); border-color: var(--line); }
.hero-plate .row { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px dashed rgba(0,0,0,0.08); }
.hero-plate:not(.hero-plate-light) .row { border-bottom: 1px dashed rgba(255,255,255,0.1); }
.hero-plate .row:last-child { border-bottom: none; }
.hero-plate .row b { color: var(--ink); font-weight: 600; }
.hero-plate:not(.hero-plate-light) .row b { color: var(--white); }
.hero-plate-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.hero-plate-head .dot { width: 8px; height: 8px; border-radius: 50%; background: #4CAF6B; box-shadow: 0 0 0 3px rgba(76,175,107,0.2); }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } }

/* ---------- Section scaffolding ---------- */
section { padding: 72px 0; scroll-margin-top: 80px; }
.section-head { max-width: 640px; margin-bottom: 42px; }
.section-alt { background: var(--white); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* ---------- Grids / cards ---------- */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.cat-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, border-color .18s; }
.cat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--steel); }
.cat-icon { width: 46px; height: 46px; margin-bottom: 16px; color: var(--copper); }
.cat-card h3 { margin-bottom: 6px; }
.cat-card p { font-size: 0.9rem; margin-bottom: 14px; }
.cat-card .count { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }

.product-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; cursor: pointer; transition: box-shadow .18s ease, transform .18s ease; }
.product-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.product-media { aspect-ratio: 4/3; background: linear-gradient(150deg, var(--slate) 0%, var(--slate-2) 100%); position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-media img { width: 100%; height: 100%; object-fit: cover; }
.product-media svg, .icon-fallback svg { width: 40%; height: 40%; color: rgba(255,255,255,0.9); }
.icon-fallback { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.product-media .tag { position: absolute; top: 10px; left: 10px; background: rgba(20,22,43,0.55); color: var(--white); font-family: var(--font-mono); font-size: 0.65rem; padding: 4px 8px; border-radius: 2px; text-transform: uppercase; letter-spacing: 0.06em; z-index: 2; }
.product-body { padding: 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-body h3 { margin: 0; font-size: 1.02rem; }
.product-code { font-family: var(--font-mono); font-size: 0.7rem; color: var(--muted); letter-spacing: 0.04em; }
.product-specs { list-style: none; margin: 0; padding: 10px 0; border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); font-size: 0.8rem; color: var(--muted); display: grid; gap: 4px; font-family: var(--font-mono); }
.product-specs li b { color: var(--ink); font-weight: 600; }
.product-foot { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }
.price { font-family: var(--font-mono); font-weight: 600; font-size: 1.05rem; color: var(--ink); }
.price span { font-size: 0.7rem; color: var(--muted); font-weight: 500; }

/* ---------- Filter bar ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.filter-chip { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.03em; text-transform: uppercase; padding: 9px 16px; border: 1px solid var(--line); border-radius: 999px; background: var(--white); cursor: pointer; color: var(--muted); transition: all .15s ease; }
.filter-chip:hover { border-color: var(--steel); color: var(--ink); }
.filter-chip.active { background: var(--ink); color: var(--white); border-color: var(--ink); }
.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
.search-input { font-family: var(--font-body); padding: 11px 14px; border: 1px solid var(--line); border-radius: var(--radius); min-width: 240px; font-size: 0.9rem; }
.result-count { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); margin-bottom: 24px; }
.empty-state { text-align: center; padding: 40px 0; color: var(--muted); }

/* ---------- Info cards ---------- */
.info-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.info-card .num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--copper-d); margin-bottom: 10px; display: block; }

/* ---------- FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { width: 100%; text-align: left; background: none; border: none; padding: 20px 0; font-family: var(--font-display); font-size: 1.02rem; text-transform: none; letter-spacing: 0; display: flex; justify-content: space-between; align-items: center; cursor: pointer; color: var(--ink); }
.faq-q .plus { font-size: 1.3rem; color: var(--copper); transition: transform .2s ease; }
.faq-item.open .faq-q .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a p { padding-bottom: 20px; margin: 0; }

/* ---------- Policy table ---------- */
table.policy-table { width: 100%; border-collapse: collapse; background: var(--white); }
table.policy-table th, table.policy-table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
table.policy-table th { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.72rem; color: var(--muted); background: var(--bg); }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 0.8rem; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
input, select, textarea { width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: var(--radius); font-family: var(--font-body); font-size: 0.92rem; background: var(--white); color: var(--ink); }
textarea { resize: vertical; min-height: 110px; }
.form-success { margin-top: 14px; color: var(--good); font-size: 0.88rem; }
@media (max-width: 620px) { .form-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.6); padding: 30px 0; }
.footer-bottom { display: flex; justify-content: space-between; font-size: 0.78rem; flex-wrap: wrap; gap: 10px; }

/* ---------- Modal ---------- */
.modal-overlay { position: fixed; inset: 0; background: rgba(27,34,42,0.6); display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; pointer-events: none; transition: opacity .2s ease; z-index: 1000; }
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal { background: var(--white); max-width: 760px; width: 100%; max-height: 90vh; overflow-y: auto; border-radius: 4px; display: grid; grid-template-columns: 1fr 1fr; position: relative; transform: translateY(12px); transition: transform .2s ease; }
.modal-overlay.open .modal { transform: translateY(0); }
.modal-media { background: linear-gradient(150deg, var(--slate) 0%, var(--slate-2) 100%); display: flex; align-items: center; justify-content: center; min-height: 240px; overflow: hidden; }
.modal-media img { width: 100%; height: 100%; object-fit: cover; }
.modal-media svg, .modal-media .icon-fallback svg { width: 45%; height: 45%; color: rgba(255,255,255,0.9); }
.modal-body { padding: 28px; }
.modal-close { position: absolute; top: 14px; right: 14px; background: rgba(0,0,0,0.3); color: var(--white); border: none; width: 32px; height: 32px; border-radius: 50%; cursor: pointer; font-size: 0.9rem; z-index: 2; }
@media (max-width: 700px) { .modal { grid-template-columns: 1fr; } .modal-media { min-height: 180px; } }

/* ---------- Cart button (nav) ---------- */
.cart-btn { position: relative; background: none; border: none; color: var(--white); cursor: pointer; padding: 6px; display: flex; }
.cart-btn svg { width: 22px; height: 22px; }
.cart-count { position: absolute; top: -4px; right: -6px; background: var(--copper); color: var(--white); font-family: var(--font-mono); font-size: 0.65rem; font-weight: 700; min-width: 17px; height: 17px; border-radius: 999px; display: flex; align-items: center; justify-content: center; padding: 0 3px; }

/* ---------- Cart drawer ---------- */
.cart-overlay { position: fixed; inset: 0; background: rgba(20,22,43,0.55); opacity: 0; pointer-events: none; transition: opacity .2s ease; z-index: 1100; }
.cart-overlay.open { opacity: 1; pointer-events: auto; }
.cart-drawer { position: fixed; top: 0; right: 0; height: 100%; width: 100%; max-width: 420px; background: var(--white); z-index: 1101; transform: translateX(100%); transition: transform .25s ease; display: flex; flex-direction: column; box-shadow: -8px 0 30px rgba(20,22,43,0.15); }
.cart-overlay.open .cart-drawer { transform: translateX(0); }
.cart-head { display: flex; align-items: center; justify-content: space-between; padding: 20px 22px; border-bottom: 1px solid var(--line); }
.cart-head h3 { margin: 0; }
.cart-close { background: none; border: none; font-size: 1.2rem; cursor: pointer; color: var(--muted); }
.cart-items { flex: 1; overflow-y: auto; padding: 10px 22px; }
.cart-empty { text-align: center; color: var(--muted); padding: 60px 20px; font-size: 0.9rem; }
.cart-line { display: flex; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); align-items: center; }
.cart-line-media { width: 56px; height: 56px; border-radius: var(--radius); background: linear-gradient(150deg, var(--slate) 0%, var(--slate-2) 100%); flex-shrink: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.cart-line-media img { width: 100%; height: 100%; object-fit: cover; }
.cart-line-media svg { width: 55%; height: 55%; color: rgba(255,255,255,0.9); }
.cart-line-info { flex: 1; min-width: 0; }
.cart-line-info h4 { margin: 0 0 4px; font-family: var(--font-body); font-size: 0.88rem; font-weight: 600; text-transform: none; letter-spacing: 0; color: var(--ink); }
.cart-line-price { font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); }
.qty-stepper { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.qty-stepper button { width: 22px; height: 22px; border-radius: 4px; border: 1px solid var(--line); background: var(--white); cursor: pointer; font-family: var(--font-mono); line-height: 1; }
.qty-stepper span { font-family: var(--font-mono); font-size: 0.85rem; min-width: 16px; text-align: center; }
.cart-line-remove { background: none; border: none; color: var(--pink); font-size: 0.75rem; cursor: pointer; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 6px; padding: 0; }
.cart-foot { padding: 18px 22px 22px; border-top: 1px solid var(--line); }
.cart-subtotal { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 0.95rem; margin-bottom: 14px; }
.cart-subtotal b { font-size: 1.1rem; }

/* ---------- Checkout modal ---------- */
.checkout-body { padding: 28px; max-width: 560px; }
.order-summary { background: var(--bg); border-radius: var(--radius); padding: 16px 18px; margin: 18px 0; }
.order-summary-line { display: flex; justify-content: space-between; font-size: 0.85rem; padding: 6px 0; color: var(--muted); }
.order-summary-line.total { border-top: 1px dashed var(--line); margin-top: 6px; padding-top: 10px; font-weight: 600; color: var(--ink); font-family: var(--font-mono); }
.order-confirm { text-align: center; padding: 20px 0; }
.order-confirm .check-badge { width: 56px; height: 56px; border-radius: 50%; background: var(--good); color: var(--white); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; font-size: 1.6rem; }

/* ---------- Cart toast ---------- */
.cart-toast { position: fixed; bottom: 24px; right: 24px; background: var(--ink); color: var(--white); padding: 14px 20px; border-radius: var(--radius); font-family: var(--font-mono); font-size: 0.85rem; box-shadow: var(--shadow); transform: translateY(120%); transition: transform .25s ease; z-index: 999; }
.cart-toast.show { transform: translateY(0); }

/* Utility */
.mt-0 { margin-top: 0; }