/* ─────────────────────────────────────────────
   STEM Lab Quotation — style.css
   ───────────────────────────────────────────── */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent:       #6366F1;
  --accent-light: #818CF8;
  --accent-dark:  #4F46E5;
  --violet:       #8B5CF6;
  --cyan:         #06B6D4;
  --emerald:      #10B981;
  --amber:        #F59E0B;
  --rose:         #F43F5E;

  --bg:           #0A0B14;
  --surface:      #111827;
  --surface2:     #1C2030;
  --surface3:     #252B3B;
  --border:       rgba(99,102,241,0.15);
  --border-light: rgba(255,255,255,0.06);

  --text-primary:   #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted:     #64748B;

  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  --shadow-card: 0 4px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(99,102,241,0.15);
  --transition:  all 0.25s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Utility ── */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

.gradient-text {
  background: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #06B6D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(10,11,20,0.85);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon svg { width: 40px; height: 40px; }
.brand-text { display: flex; flex-direction: column; }
.brand-name { font-family: 'Outfit', sans-serif; font-weight: 700; font-size: 1.1rem; color: var(--text-primary); }
.brand-sub { font-size: 0.72rem; color: var(--text-muted); letter-spacing: 0.05em; text-transform: uppercase; }

.header-nav { display: flex; align-items: center; gap: 16px; }

.nav-badge {
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.3);
  color: var(--accent-light);
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--violet));
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
  box-shadow: 0 4px 20px rgba(99,102,241,0.35);
}
.btn-primary svg { width: 16px; height: 16px; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(99,102,241,0.5); }

/* ── Hero ── */
.hero {
  position: relative;
  padding: 100px 24px 80px;
  text-align: center;
  overflow: hidden;
}

.hero-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.orb1 { width: 500px; height: 500px; background: rgba(99,102,241,0.12); top: -100px; left: -100px; }
.orb2 { width: 400px; height: 400px; background: rgba(139,92,246,0.08); top: 50px; right: -80px; }
.orb3 { width: 300px; height: 300px; background: rgba(6,182,212,0.06); bottom: -50px; left: 50%; transform: translateX(-50%); }

.hero-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }

.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.25);
  color: var(--accent-light);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 28px;
  animation: fadeInDown 0.6s ease;
}

.hero-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 20px;
  animation: fadeInUp 0.7s ease;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 40px;
  animation: fadeInUp 0.8s ease;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  animation: fadeInUp 0.9s ease;
}
.stat { text-align: center; }
.stat-num { display: block; font-family: 'Outfit', sans-serif; font-size: 2rem; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; }
.stat-divider { width: 1px; height: 40px; background: var(--border-light); }

/* ── Filter Section ── */
.filter-section {
  padding: 0 0 32px;
  position: sticky;
  top: 70px;
  z-index: 90;
  background: var(--bg);
  border-bottom: 1px solid var(--border-light);
}

.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 0;
}

.filter-left { display: flex; gap: 8px; flex-wrap: wrap; }

.filter-btn {
  background: var(--surface2);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent-light); }
.filter-btn.active { background: linear-gradient(135deg, var(--accent), var(--violet)); border-color: transparent; color: white; font-weight: 600; }

.filter-right { display: flex; gap: 8px; }

.select-all-btn, .clear-btn {
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
  border: 1px solid;
}
.select-all-btn { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.3); color: var(--emerald); }
.select-all-btn:hover { background: rgba(16,185,129,0.2); }
.clear-btn { background: rgba(244,63,94,0.1); border-color: rgba(244,63,94,0.3); color: var(--rose); }
.clear-btn:hover { background: rgba(244,63,94,0.2); }

/* ── Machines Grid ── */
.machines-section { padding: 48px 0 80px; }

.machines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

/* ── Machine Card ── */
.machine-card {
  background: var(--surface);
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  animation: cardIn 0.5s ease both;
}
.machine-card:hover {
  transform: translateY(-6px);
  border-color: rgba(99,102,241,0.4);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}
.machine-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-card), 0 0 50px rgba(99,102,241,0.25);
}
.machine-card.hidden { display: none; }

/* Image */
.card-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--surface2);
}
.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.machine-card:hover .card-img { transform: scale(1.05); }

.card-category-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}
.badge-fabrication { background: rgba(99,102,241,0.8); color: white; }
.badge-electronics  { background: rgba(16,185,129,0.8); color: white; }
.badge-woodwork    { background: rgba(245,158,11,0.8); color: white; }

/* Checkbox */
.card-check {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(10,11,20,0.6);
  backdrop-filter: blur(8px);
  border: 2px solid rgba(255,255,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.machine-card.selected .card-check {
  background: var(--accent);
  border-color: var(--accent);
}
.check-icon {
  opacity: 0;
  transform: scale(0.5);
  transition: var(--transition);
  color: white;
}
.check-icon svg { width: 16px; height: 16px; }
.machine-card.selected .check-icon { opacity: 1; transform: scale(1); }

/* Card Body */
.card-body { padding: 22px 22px 18px; }
.card-name { font-family: 'Outfit', sans-serif; font-size: 1.15rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.card-desc { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.55; margin-bottom: 16px; }

/* Specs */
.card-specs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.spec-tag {
  background: var(--surface3);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 500;
}

/* Price row */
.card-price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}
.price-label { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; }
.price-value { font-family: 'Outfit', sans-serif; font-size: 1.4rem; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.price-range { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; text-align: right; }

/* Select Button on card */
.card-select-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1.5px solid rgba(99,102,241,0.3);
  background: rgba(99,102,241,0.08);
  color: var(--accent-light);
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}
.card-select-btn svg { width: 14px; height: 14px; }
.card-select-btn:hover { background: rgba(99,102,241,0.18); border-color: var(--accent); }
.machine-card.selected .card-select-btn {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  box-shadow: 0 4px 16px rgba(99,102,241,0.35);
}

/* ── Quote Section ── */
.quote-section {
  padding: 80px 0;
  background: var(--surface);
  border-top: 1px solid var(--border-light);
}

.quote-wrapper {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.quote-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 28px 32px;
  background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(139,92,246,0.05));
  border-bottom: 1px solid var(--border);
}

.quote-header-left { display: flex; align-items: center; gap: 16px; }

.quote-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent), var(--violet));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(99,102,241,0.35);
}
.quote-icon svg { width: 24px; height: 24px; color: white; }

.quote-title { font-family: 'Outfit', sans-serif; font-size: 1.4rem; font-weight: 800; color: var(--text-primary); }
.quote-subtitle { font-size: 0.82rem; color: var(--text-muted); }

.btn-download {
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--emerald), #059669);
  color: white;
  border: none;
  padding: 13px 26px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
  box-shadow: 0 4px 20px rgba(16,185,129,0.3);
  letter-spacing: 0.02em;
}
.btn-download svg { width: 18px; height: 18px; }
.btn-download:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(16,185,129,0.45); }

/* Client Info */
.client-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  padding: 24px 32px;
  background: rgba(0,0,0,0.15);
  border-bottom: 1px solid var(--border-light);
}

.info-field { display: flex; flex-direction: column; gap: 6px; }
.info-field label { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.info-field input {
  background: var(--surface3);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
  outline: none;
}
.info-field input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
.info-field input::placeholder { color: var(--text-muted); }

/* Empty state */
.quote-empty {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 12px; }
.quote-empty p { font-size: 0.95rem; }

/* Quote Table */
.quote-table-wrap { overflow-x: auto; padding: 0 32px; }
.quote-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.quote-table thead tr { border-bottom: 1px solid var(--border); }
.quote-table th {
  padding: 14px 12px;
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.quote-table tbody tr {
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}
.quote-table tbody tr:hover { background: rgba(99,102,241,0.04); }
.quote-table tbody tr:last-child { border-bottom: none; }
.quote-table td { padding: 16px 12px; color: var(--text-primary); vertical-align: middle; }
.td-serial { color: var(--text-muted); font-weight: 600; width: 40px; }
.td-name { font-weight: 600; font-family: 'Outfit', sans-serif; }
.td-cat span {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.cat-fabrication { background: rgba(99,102,241,0.15); color: var(--accent-light); }
.cat-electronics { background: rgba(16,185,129,0.15); color: var(--emerald); }
.cat-woodwork { background: rgba(245,158,11,0.15); color: var(--amber); }
.td-price { font-family: 'Outfit', sans-serif; font-weight: 700; color: var(--accent-light); }
.td-total { font-family: 'Outfit', sans-serif; font-weight: 800; color: var(--text-primary); }

.qty-control {
  display: flex;
  align-items: center;
  gap: 8px;
}
.qty-btn {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  background: var(--surface3);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: var(--transition);
}
.qty-btn:hover { background: var(--accent); border-color: var(--accent); }
.qty-val { font-weight: 700; min-width: 24px; text-align: center; }

.remove-btn {
  background: rgba(244,63,94,0.1);
  border: 1px solid rgba(244,63,94,0.25);
  color: var(--rose);
  padding: 5px 9px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  transition: var(--transition);
}
.remove-btn:hover { background: rgba(244,63,94,0.25); }

/* Totals */
.quote-totals {
  padding: 24px 32px;
  border-top: 1px solid var(--border-light);
}
.totals-inner { max-width: 380px; margin-left: auto; }
.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}
.total-row:last-of-type { border-bottom: none; }
.total-row span:last-child { font-weight: 700; color: var(--text-primary); font-family: 'Outfit', sans-serif; }
.total-row.grand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  padding-top: 16px;
  margin-top: 8px;
  border-top: 2px solid var(--accent);
}
.total-row.grand span:last-child {
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.quote-note {
  margin-top: 16px;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
  padding: 12px;
  background: rgba(99,102,241,0.05);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ── Footer ── */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border-light);
  padding: 40px 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.footer-tagline { font-size: 0.8rem; color: var(--text-muted); display: block; margin-top: 4px; }
.footer-copy { font-size: 0.78rem; color: var(--text-muted); }

/* ── Animations ── */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero { padding: 64px 16px 48px; }
  .hero-stats { gap: 20px; }
  .machines-grid { grid-template-columns: 1fr; }
  .quote-header { flex-direction: column; align-items: flex-start; }
  .client-info-grid { grid-template-columns: 1fr; padding: 16px 20px; }
  .quote-table-wrap { padding: 0 16px; }
  .quote-totals { padding: 16px 20px; }
  .filter-bar { flex-direction: column; align-items: stretch; }
}