/* ============================================
   PackAssure Design System
   Matches the landing page: Navy / Teal / Amber
   ============================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --navy: #0a1628;
  --slate: #1a2942;
  --teal: #0d9488;
  --teal-light: #14b8a6;
  --teal-bg: rgba(13,148,136,0.08);
  --amber: #f59e0b;
  --amber-light: #fbbf24;
  --amber-bg: rgba(245,158,11,0.08);
  --sand: #f5f0e8;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
}

body {
  font-family: 'DM Sans', sans-serif;
  color: var(--navy);
  background: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; line-height: 1.2; }
a { color: inherit; }
img { max-width: 100%; }

/* ============================================
   Navigation
   ============================================ */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: 0 2rem;
  background: rgba(10, 22, 40, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
nav .inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}
.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--white);
  letter-spacing: -0.5px;
  text-decoration: none;
}
.logo span { color: var(--teal-light); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  color: var(--gray-300);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  letter-spacing: 0.2px;
}
.nav-links a:hover,
.nav-links a.active { color: var(--white); }

.nav-cta {
  background: var(--teal) !important;
  color: var(--white) !important;
  padding: 0.6rem 1.25rem !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--teal-light) !important; }

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  padding: 0.5rem;
}

/* ============================================
   Page Hero
   ============================================ */
.page-hero {
  background: var(--navy);
  padding: 8rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(13,148,136,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.page-hero .inner {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.breadcrumb {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 1.5rem;
}
.breadcrumb a {
  color: var(--gray-500);
  text-decoration: none;
  transition: color 0.2s;
}
.breadcrumb a:hover { color: var(--teal-light); }

.page-hero .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 0.45rem 0.9rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
}
.tag.teal {
  background: rgba(13,148,136,0.15);
  color: var(--teal-light);
  border: 1px solid rgba(13,148,136,0.3);
}
.tag.amber {
  background: rgba(245,158,11,0.15);
  color: var(--amber-light);
  border: 1px solid rgba(245,158,11,0.3);
}

.page-hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  color: var(--white);
  letter-spacing: -1.5px;
  margin-bottom: 1rem;
  max-width: 700px;
}
.hero-desc {
  color: var(--gray-300);
  font-size: 1.1rem;
  max-width: 650px;
  line-height: 1.7;
}
.hero-desc strong { color: var(--teal-light); }
.hero-tagline {
  color: var(--gray-300);
  font-size: 1.25rem;
  max-width: 600px;
  line-height: 1.7;
}

/* ============================================
   Catalog Grid
   ============================================ */
.catalog-section {
  padding: 5rem 2rem;
  background: var(--gray-50);
}
.catalog-section .inner {
  max-width: 1200px;
  margin: 0 auto;
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}
.catalog-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  display: flex;
  flex-direction: column;
}
.catalog-card:hover {
  border-color: var(--teal);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.catalog-card-accent {
  height: 4px;
}
.catalog-card-accent.teal { background: linear-gradient(90deg, var(--teal), var(--teal-light)); }
.catalog-card-accent.amber { background: linear-gradient(90deg, var(--amber), var(--amber-light)); }

.catalog-card-body {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.catalog-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.5px;
}
.catalog-card .tagline {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}
.catalog-card-apps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}
.app-tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3rem 0.65rem;
  border-radius: 4px;
  white-space: nowrap;
}
.app-tag.teal { background: var(--teal-bg); color: var(--teal); }
.app-tag.amber { background: var(--amber-bg); color: #b45309; }

.catalog-card-link {
  font-weight: 600;
  font-size: 0.9rem;
}
.catalog-card-link.teal { color: var(--teal); }
.catalog-card-link.amber { color: var(--amber); }

/* ============================================
   Info Banner
   ============================================ */
.info-banner {
  padding: 0 2rem;
  margin-top: -2rem;
  position: relative;
  z-index: 2;
}
.info-banner .inner {
  max-width: 1200px;
  margin: 0 auto;
}
.info-banner-content {
  background: var(--sand);
  border: 1px solid #e8e0d0;
  border-radius: var(--radius);
  padding: 2rem 2.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.info-icon {
  font-size: 2rem;
  flex-shrink: 0;
}
.info-banner h3 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}
.info-banner p {
  color: var(--gray-700);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  padding: 5rem 2rem;
  background: var(--white);
  text-align: center;
}
.cta-section .inner {
  max-width: 650px;
  margin: 0 auto;
}
.cta-section h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
}
.cta-section p {
  color: var(--gray-500);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

/* ============================================
   Product Detail
   ============================================ */
.product-detail {
  padding: 4rem 2rem 5rem;
  background: var(--gray-50);
}
.product-detail .inner {
  max-width: 1200px;
  margin: 0 auto;
}
.product-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 3rem;
  align-items: start;
}
.product-main {
  min-width: 0;
}
.product-section {
  margin-bottom: 3rem;
}
.product-section h2 {
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--gray-200);
}
.product-desc {
  color: var(--gray-700);
  font-size: 1.05rem;
  line-height: 1.8;
}
.features-list {
  list-style: none;
  padding: 0;
}
.features-list li {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  font-size: 0.95rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.check {
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}
.check.teal { color: var(--teal); }
.check.amber { color: var(--amber); }

.app-tags-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.app-tags-grid .app-tag {
  font-size: 0.85rem;
  padding: 0.45rem 0.85rem;
}

/* Sidebar */
.product-sidebar {
  position: sticky;
  top: 90px;
}
.sidebar-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  margin-bottom: 1.5rem;
}
.sidebar-card-header {
  padding: 1.25rem 1.5rem;
}
.sidebar-card-header.teal { background: var(--teal); }
.sidebar-card-header.amber { background: var(--amber); }
.sidebar-card-header h3 {
  color: var(--white);
  font-size: 1rem;
  letter-spacing: -0.3px;
}
.specs-table {
  width: 100%;
  border-collapse: collapse;
}
.specs-table tr {
  border-bottom: 1px solid var(--gray-100);
}
.specs-table tr:last-child { border-bottom: none; }
.spec-key {
  padding: 0.75rem 1rem 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--gray-700);
  white-space: nowrap;
  vertical-align: top;
  width: 45%;
}
.spec-val {
  padding: 0.75rem 1.5rem 0.75rem 0.5rem;
  font-size: 0.85rem;
  color: var(--gray-500);
  vertical-align: top;
}

.sidebar-cta {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}
.sidebar-cta h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.sidebar-cta p {
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.sidebar-note {
  background: var(--sand);
  border: 1px solid #e8e0d0;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  font-size: 0.85rem;
}
.sidebar-note strong {
  display: block;
  margin-bottom: 0.3rem;
}
.sidebar-note p {
  color: var(--gray-700);
  line-height: 1.5;
  margin: 0;
}

.back-link-section {
  padding: 2rem;
  background: var(--gray-50);
}
.back-link-section .inner {
  max-width: 1200px;
  margin: 0 auto;
}
.back-link {
  color: var(--teal);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.back-link:hover { color: var(--teal-light); }

/* ============================================
   Forms
   ============================================ */
.form-section {
  padding: 4rem 2rem 5rem;
  background: var(--gray-50);
}
.form-section .inner {
  max-width: 1200px;
  margin: 0 auto;
}
.packassure-form {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 2.5rem;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.form-group-header {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}
.form-group-header:first-child { margin-top: 0; }
.form-group-header h2 {
  font-size: 1.2rem;
  letter-spacing: -0.3px;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--gray-200);
}
.form-hint {
  color: var(--gray-500);
  font-size: 0.85rem;
  margin-top: 0.3rem;
  line-height: 1.5;
}
.full-width { grid-column: 1 / -1; }

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gray-700);
  margin-bottom: 0.4rem;
}
.required { color: var(--teal); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--navy);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(13,148,136,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-300);
}
.form-group textarea { resize: vertical; }
.form-group select { cursor: pointer; }

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500 !important;
  cursor: pointer;
}
.checkbox-label input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--teal);
}

/* Contact page layout */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 2.5rem;
  align-items: start;
}
.contact-form-col .packassure-form { margin: 0; }
.contact-info-col { position: sticky; top: 90px; }

.contact-info-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}
.contact-info-card.dark {
  background: var(--navy);
  border-color: transparent;
  color: var(--white);
}
.contact-info-card h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}
.contact-info-card.dark h3 { color: var(--white); }
.contact-info-card p {
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.6;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}
.contact-item:last-child { margin-bottom: 0; }
.contact-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-item strong {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.15rem;
}
.contact-item a {
  color: var(--teal);
  text-decoration: none;
}
.contact-item span {
  color: var(--gray-500);
  font-size: 0.9rem;
}
.partner-info {
  margin-bottom: 1rem;
}
.partner-info:last-child { margin-bottom: 0; }
.partner-info strong {
  display: block;
  color: var(--teal-light);
  font-size: 0.95rem;
}
.partner-info span {
  color: var(--gray-300);
  font-size: 0.85rem;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  text-align: center;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-teal { background: var(--teal); color: var(--white); }
.btn-teal:hover { background: var(--teal-light); }
.btn-amber { background: var(--amber); color: var(--white); }
.btn-amber:hover { background: var(--amber-light); }
.btn-lg { padding: 0.9rem 2rem; font-size: 1rem; }
.btn-full { width: 100%; }

.btn:disabled,
.btn.loading {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

/* ============================================
   Success Banner
   ============================================ */
.success-banner {
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}
.success-icon {
  width: 36px;
  height: 36px;
  background: var(--teal);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.success-banner h3 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
}
.success-banner p {
  color: var(--gray-700);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ============================================
   Footer
   ============================================ */
footer {
  background: var(--navy);
  padding: 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem 3rem;
  display: flex;
  justify-content: space-between;
  gap: 3rem;
}
.footer-left {
  max-width: 350px;
}
.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 1rem;
}
.footer-logo span { color: var(--teal-light); }
.footer-left p {
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.6;
}
.footer-right {
  display: flex;
  gap: 4rem;
}
.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  color: var(--gray-500);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--teal-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1.5rem 2rem;
  text-align: center;
}
.footer-bottom p {
  color: var(--gray-500);
  font-size: 0.8rem;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .product-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .product-sidebar,
  .contact-info-col {
    position: static;
  }
}

@media (max-width: 768px) {
  nav { padding: 0 1rem; }
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    padding: 1rem 2rem 1.5rem;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav-links.open { display: flex; }
  .nav-cta { text-align: center; }
  .mobile-menu-btn { display: block; }

  .page-hero { padding: 7rem 1.5rem 3rem; }
  .catalog-section,
  .form-section,
  .product-detail { padding: 3rem 1rem; }
  .catalog-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .packassure-form { padding: 1.5rem; }

  .info-banner-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-inner {
    flex-direction: column;
    padding: 3rem 1.5rem 2rem;
  }
  .footer-right { flex-direction: column; gap: 2rem; }
}