/* ===========================================================
   Zikhalo Stationery — static site styles
   Navy + green corporate palette · mobile-first
   =========================================================== */

:root {
  --navy:        #15315f;
  --navy-dark:   #0f2447;
  --navy-soft:   #1d3e75;
  --green:       #2c9c5e;
  --green-dark:  #248450;
  --green-soft:  #e6f5ed;
  --bg:          #ffffff;
  --surface:     #f6f7fb;
  --surface-2:   #eef1f7;
  --text:        #12203a;
  --muted:       #5b6577;
  --border:      #e2e6ee;
  --shadow-sm:   0 1px 2px rgba(15,36,71,.06), 0 1px 3px rgba(15,36,71,.08);
  --shadow-md:   0 10px 30px -12px rgba(15,36,71,.25);
  --radius:      10px;
  --radius-lg:   16px;
  --transition:  all .25s cubic-bezier(.4,0,.2,1);
  --maxw:        1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
h1, h2, h3, h4 { letter-spacing: -.02em; line-height: 1.2; margin: 0; }
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 600; }
p { margin: 0; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1rem; }
@media (min-width: 768px) { .container { padding: 0 2rem; } }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; background: var(--navy); color: #fff; padding: .5rem 1rem; z-index: 1000; border-radius: 6px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.95);
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; gap: 1rem;
  height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 700; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--navy); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem;
}
.brand-name { font-size: 1rem; color: var(--navy); }
.primary-nav { display: none; margin-left: auto; gap: 1.6rem; }
.primary-nav a {
  font-size: .92rem; font-weight: 500; color: var(--text);
  position: relative; padding: .25rem 0;
  transition: var(--transition);
}
.primary-nav a:hover { color: var(--green); }
.primary-nav a.active { color: var(--navy); font-weight: 600; }
.primary-nav a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -22px;
  height: 2px; background: var(--green);
}
.cta-quote {
  display: none;
  background: var(--green); color: #fff;
  padding: .6rem 1.1rem; border-radius: 8px;
  font-size: .88rem; font-weight: 600;
  transition: var(--transition);
}
.cta-quote:hover { background: var(--green-dark); transform: translateY(-1px); }

.menu-toggle {
  margin-left: auto;
  width: 44px; height: 44px;
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  border-radius: 8px;
}
.menu-toggle span {
  display: block; width: 22px; height: 2px; background: var(--navy); border-radius: 2px;
  transition: var(--transition);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 900px) {
  .primary-nav { display: inline-flex; }
  .cta-quote { display: inline-flex; }
  .menu-toggle { display: none; }
}

/* Mobile nav drawer */
@media (max-width: 899px) {
  .primary-nav {
    position: fixed; inset: 68px 0 auto 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; gap: 0; padding: .5rem 0;
    transform: translateY(-120%); transition: transform .3s ease;
  }
  .primary-nav.open { display: flex; transform: translateY(0); }
  .primary-nav a { padding: 1rem 1.5rem; border-bottom: 1px solid var(--surface-2); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .75rem 1.25rem; border-radius: 8px;
  font-size: .9rem; font-weight: 600;
  transition: var(--transition);
}
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: #fff; border: 1px solid var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-ghost { background: var(--surface); color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-light { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.3); }
.btn-light:hover { background: rgba(255,255,255,.2); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--navy); color: #fff;
  padding: 4rem 0 5rem;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: url("../assets/hero-warehouse.jpg");
  background-size: cover; background-position: center;
  opacity: .22;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(110deg, var(--navy) 0%, rgba(21,49,95,.92) 50%, rgba(21,49,95,.55) 100%);
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(44,156,94,.18); border: 1px solid rgba(44,156,94,.5);
  color: #6fe2a4; padding: .35rem .8rem; border-radius: 999px;
  font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em;
}
.hero h1 { margin-top: 1.25rem; }
.hero p.lead { margin-top: 1.25rem; font-size: 1.05rem; color: rgba(255,255,255,.85); max-width: 620px; }
.hero-actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: .75rem; }
.hero-stats {
  margin-top: 3rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; max-width: 520px;
}
.hero-stats dt { font-size: 2rem; font-weight: 800; color: #6fe2a4; margin: 0; }
.hero-stats dd { margin: .25rem 0 0; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: rgba(255,255,255,.7); }

/* ---------- Sections ---------- */
.section { padding: 4rem 0; }
.section-surface { background: var(--surface); }
.section-navy { background: var(--navy); color: #fff; }
.section-head { max-width: 640px; }
.section-head .eyebrow { background: var(--green-soft); color: var(--green-dark); border-color: transparent; }
.section-navy .section-head .eyebrow { background: rgba(44,156,94,.2); color: #8eecb6; border-color: transparent; }
.section-head h2 { margin-top: .75rem; }
.section-head p { margin-top: .85rem; color: var(--muted); }
.section-navy .section-head p { color: rgba(255,255,255,.78); }

/* ---------- Category grid ---------- */
.cat-grid {
  margin-top: 2.25rem;
  display: grid; gap: 1rem;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 600px) { .cat-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 960px) { .cat-grid { grid-template-columns: repeat(6, 1fr); } }

.cat-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.cat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--green); }
.cat-card .img-wrap { aspect-ratio: 1/1; background: var(--surface); overflow: hidden; }
.cat-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.cat-card:hover img { transform: scale(1.05); }
.cat-card .cat-body { padding: .75rem; }
.cat-card h3 { font-size: .9rem; }
.cat-card .cat-body p { font-size: .75rem; color: var(--muted); margin-top: .15rem; }

/* ---------- Product grid ---------- */
.prod-grid {
  margin-top: 2rem;
  display: grid; gap: 1.25rem;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 700px) { .prod-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .prod-grid { grid-template-columns: repeat(4, 1fr); } }

.prod-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
  transition: var(--transition);
}
.prod-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.prod-card .img-wrap { aspect-ratio: 4/3; background: var(--surface); overflow: hidden; }
.prod-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.prod-card:hover .img-wrap img { transform: scale(1.06); }
.prod-card .prod-body { padding: 1rem; flex: 1; display: flex; flex-direction: column; }
.prod-cat-tag {
  font-size: .68rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em;
  color: var(--green-dark); margin-bottom: .35rem;
}
.prod-card h3 { font-size: .95rem; line-height: 1.3; }
.prod-card .prod-desc { font-size: .8rem; color: var(--muted); margin-top: .4rem; flex: 1; }
.prod-card .prod-unit {
  margin-top: .65rem;
  font-size: .72rem; color: var(--navy); background: var(--surface); padding: .25rem .5rem;
  border-radius: 4px; align-self: flex-start;
}
.prod-card .quote-btn {
  margin-top: .85rem;
  display: inline-flex; justify-content: center;
  background: var(--navy); color: #fff;
  padding: .55rem 1rem; border-radius: 7px;
  font-size: .82rem; font-weight: 600;
  transition: var(--transition);
}
.prod-card .quote-btn:hover { background: var(--green); }

/* ---------- Filter chips ---------- */
.filter-chips {
  display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.5rem;
}
.chip {
  padding: .45rem .85rem; border-radius: 999px;
  border: 1px solid var(--border); background: #fff;
  font-size: .78rem; font-weight: 600; color: var(--muted);
  transition: var(--transition);
}
.chip:hover { border-color: var(--navy); color: var(--navy); }
.chip.active { background: var(--navy); border-color: var(--navy); color: #fff; }

/* ---------- Search ---------- */
.search-wrap {
  position: relative; margin-top: 1.25rem; max-width: 420px;
}
.search-wrap input {
  width: 100%; padding: .75rem .85rem .75rem 2.4rem;
  border: 1px solid var(--border); border-radius: 8px;
  font-size: .9rem; background: #fff;
}
.search-wrap input:focus {
  outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(44,156,94,.18);
}
.search-wrap::before {
  content: "🔍"; position: absolute; left: .85rem; top: 50%; transform: translateY(-50%);
  font-size: .9rem; opacity: .6;
}

/* ---------- Page header band ---------- */
.page-band {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 2.5rem 0;
}
.page-band h1 { font-size: clamp(1.75rem, 3vw, 2.5rem); margin-top: .5rem; }
.page-band p { margin-top: .75rem; color: var(--muted); max-width: 640px; }

/* ---------- Why-choose grid ---------- */
.why-grid {
  margin-top: 2.25rem;
  display: grid; gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .why-grid { grid-template-columns: repeat(3, 1fr); } }
.why-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem; box-shadow: var(--shadow-sm);
}
.why-card .icon {
  width: 38px; height: 38px; border-radius: 9px;
  background: var(--green-soft); color: var(--green-dark);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.2rem; margin-bottom: .85rem;
}
.why-card h3 { font-size: 1rem; }
.why-card p { margin-top: .5rem; font-size: .88rem; color: var(--muted); }

/* ---------- Bulk panel ---------- */
.bulk-grid {
  display: grid; gap: 2.5rem; align-items: start;
  grid-template-columns: 1fr;
}
@media (min-width: 900px) { .bulk-grid { grid-template-columns: 1fr 1fr; gap: 3rem; } }
.bulk-list {
  list-style: none; padding: 0; margin: 1.5rem 0 0;
  display: grid; gap: .65rem; grid-template-columns: 1fr;
}
@media (min-width: 500px) { .bulk-list { grid-template-columns: 1fr 1fr; } }
.bulk-list li { display: flex; gap: .65rem; font-size: .9rem; color: rgba(255,255,255,.85); }
.bulk-list li::before {
  content: "✓"; flex-shrink: 0;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--green); color: #fff;
  font-size: .7rem; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}
.bulk-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg); padding: 1.75rem; backdrop-filter: blur(6px);
}
.bulk-card h3 { font-size: 1.15rem; }
.solution { border-left: 2px solid var(--green); padding-left: 1rem; margin-top: 1rem; }
.solution h4 { font-size: .95rem; color: #fff; margin: 0; }
.solution p { font-size: .85rem; color: rgba(255,255,255,.78); margin-top: .15rem; }

/* ---------- Delivery cards ---------- */
.delivery-grid {
  margin-top: 2.25rem;
  display: grid; gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 600px) { .delivery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .delivery-grid { grid-template-columns: repeat(4, 1fr); } }
.delivery-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem; box-shadow: var(--shadow-sm);
}
.delivery-card h3 { font-size: 1rem; display: flex; align-items: center; gap: .5rem; }
.delivery-card h3::before { content: "🚚"; }
.delivery-card p { margin-top: .4rem; font-size: .82rem; color: var(--muted); }

/* ---------- Final CTA ---------- */
.final-cta {
  margin: 0 auto 4rem; max-width: var(--maxw);
  padding: 3rem; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-soft) 100%);
  color: #fff; box-shadow: var(--shadow-md);
}
.final-cta-grid {
  display: grid; gap: 1.5rem; align-items: center;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) { .final-cta-grid { grid-template-columns: 1.4fr 1fr; } }
.final-cta h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
.final-cta p { margin-top: .75rem; color: rgba(255,255,255,.8); }
.final-cta-actions { display: flex; flex-wrap: wrap; gap: .65rem; justify-content: flex-start; }
@media (min-width: 768px) { .final-cta-actions { justify-content: flex-end; } }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-dark); color: rgba(255,255,255,.85);
  margin-top: 4rem; padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid; gap: 2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 600px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.4fr; } }
.brand-footer .brand-name { color: #fff; }
.footer-tag { margin-top: 1rem; font-size: .85rem; color: rgba(255,255,255,.65); max-width: 320px; }
.site-footer h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; color: #fff; margin-bottom: .85rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .55rem; }
.site-footer a { font-size: .88rem; color: rgba(255,255,255,.75); transition: color .2s; }
.site-footer a:hover { color: var(--green); }
.contact-list li { font-size: .85rem; color: rgba(255,255,255,.75); display: flex; gap: .5rem; align-items: flex-start; }
.contact-list li::before { content: "•"; color: var(--green); }
.footer-base {
  margin-top: 2.5rem; padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem;
  color: rgba(255,255,255,.55); font-size: .78rem;
}

/* ---------- Modal ---------- */
.modal[hidden] { display: none !important; }
.modal {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.modal-backdrop {
  position: absolute; inset: 0; background: rgba(15,36,71,.7);
  backdrop-filter: blur(4px);
  animation: fadeIn .2s ease;
}
.modal-panel {
  position: relative; z-index: 1;
  width: 100%; max-width: 640px; max-height: 90vh; overflow-y: auto;
  background: #fff; border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 30px 80px rgba(0,0,0,.4);
  animation: panelIn .3s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes panelIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.modal-close {
  position: absolute; top: .85rem; right: 1rem;
  width: 36px; height: 36px; border-radius: 8px;
  font-size: 1.5rem; line-height: 1; color: var(--muted);
}
.modal-close:hover { background: var(--surface); color: var(--navy); }
.modal-panel h2 { color: var(--navy); }
.modal-sub { color: var(--muted); margin-top: .5rem; font-size: .9rem; }

/* ---------- Form ---------- */
.quote-form { margin-top: 1.5rem; display: grid; gap: 1rem; }
.form-row { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 600px) { .form-row { grid-template-columns: 1fr 1fr; } }
.quote-form label {
  display: flex; flex-direction: column; gap: .35rem;
  font-size: .82rem; font-weight: 600; color: var(--text);
}
.quote-form input,
.quote-form select,
.quote-form textarea {
  font: inherit; padding: .65rem .8rem;
  border: 1px solid var(--border); border-radius: 7px;
  background: #fff; color: var(--text);
  transition: var(--transition);
  font-weight: 400;
}
.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(44,156,94,.18);
}
.quote-form textarea { resize: vertical; min-height: 100px; font-family: inherit; }
.form-actions {
  display: flex; flex-wrap: wrap; gap: .65rem;
  margin-top: .5rem;
}
.form-status { font-size: .85rem; color: var(--green-dark); margin: 0; min-height: 1.2em; }
.form-status.error { color: #c0392b; }

/* ---------- Empty state ---------- */
.empty {
  margin-top: 2.5rem; padding: 3rem 1.5rem;
  border: 1px dashed var(--border); border-radius: var(--radius);
  text-align: center; color: var(--muted); background: #fff;
}

/* ---------- Toast ---------- */
.toast[hidden] { display: none; }
.toast {
  position: fixed; bottom: 1.5rem; left: 50%;
  transform: translateX(-50%);
  background: var(--navy); color: #fff;
  padding: .8rem 1.4rem; border-radius: 8px;
  font-size: .88rem; box-shadow: var(--shadow-md);
  z-index: 200; animation: panelIn .25s ease;
}

/* ---------- Misc utils ---------- */
.flex-between { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.muted { color: var(--muted); }
.text-right { text-align: right; }
.mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 1.5rem; } .mt-3 { margin-top: 2rem; }

.fade-in { animation: panelIn .4s ease both; }

/* ---------- Page hero (sub-pages) ---------- */
.subhero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-soft) 100%);
  color: #fff; padding: 3rem 0;
}
.subhero h1 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); margin-top: .5rem; }
.subhero p { margin-top: .75rem; color: rgba(255,255,255,.8); max-width: 640px; }
.subhero .eyebrow { background: rgba(44,156,94,.2); color: #8eecb6; border-color: transparent; }

/* ---------- Contact page ---------- */
.contact-grid {
  margin-top: 2.5rem; display: grid; gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .contact-grid { grid-template-columns: repeat(3, 1fr); } }
.contact-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.75rem; box-shadow: var(--shadow-sm);
}
.contact-card h3 { color: var(--navy); }
.contact-card p { margin-top: .5rem; color: var(--muted); font-size: .9rem; }
.contact-card a { color: var(--green-dark); font-weight: 600; }
.contact-card a:hover { text-decoration: underline; }