/* UQD-USA Website Styles
   Brand Colors: #00a8e8 (bright blue), #002b5b (dark navy)
   Aesthetic: Industrial precision, engineering-focused, trustworthy
*/

@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;600;700&family=Barlow+Condensed:wght@600;700&display=swap');

:root {
  --blue-bright: #00a8e8;
  --navy-dark: #002b5b;
  --navy-darker: #001a3a;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  --font-primary: 'Barlow', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Barlow Condensed', 'Barlow', sans-serif;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--blue-bright);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--navy-dark);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy-dark);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section--navy {
  background: var(--navy-dark);
  color: var(--white);
}

.section--navy h2,
.section--navy h3,
.section--navy h4 {
  color: var(--white);
}

.section--gray {
  background: var(--gray-50);
}

/* Header */
.header {
  background: var(--navy-dark);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.header__logo {
  height: 50px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav__link {
  color: var(--gray-300);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.nav__link:hover,
.nav__link--active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.nav__cta {
  background: var(--blue-bright);
  color: var(--white) !important;
  font-weight: 600;
  padding: 0.625rem 1.25rem;
  border-radius: 4px;
  margin-left: 0.5rem;
}

.nav__cta:hover {
  background: #0090c5;
  color: var(--white) !important;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: 0.3s;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-darker);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
  }
  
  .nav.active {
    display: flex;
  }
  
  .nav__link {
    width: 100%;
    padding: 0.75rem 1rem;
  }
  
  .nav__cta {
    margin: 0.5rem 0 0 0;
    text-align: center;
  }
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-darker) 100%);
  color: var(--white);
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300a8e8' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__badge {
  display: inline-block;
  background: rgba(0, 168, 232, 0.2);
  border: 1px solid var(--blue-bright);
  color: var(--blue-bright);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.375rem 1rem;
  border-radius: 2px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--gray-300);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero__ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.875rem 2rem;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.btn--primary {
  background: var(--blue-bright);
  color: var(--white);
  border-color: var(--blue-bright);
}

.btn--primary:hover {
  background: #0090c5;
  border-color: #0090c5;
  color: var(--white);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: var(--gray-400);
}

.btn--outline:hover {
  border-color: var(--white);
  color: var(--white);
}

.btn--outline-dark {
  background: transparent;
  color: var(--navy-dark);
  border-color: var(--navy-dark);
}

.btn--outline-dark:hover {
  background: var(--navy-dark);
  color: var(--white);
}

/* Features Grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature {
  background: var(--white);
  padding: 2rem;
  border-radius: 4px;
  box-shadow: var(--shadow-md);
  border-top: 3px solid var(--blue-bright);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.feature__icon {
  width: 48px;
  height: 48px;
  background: var(--gray-100);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--blue-bright);
}

.feature__icon svg {
  width: 24px;
  height: 24px;
}

.feature h4 {
  margin-bottom: 0.75rem;
}

.feature p {
  color: var(--gray-600);
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Specs Table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.95rem;
}

.specs-table th,
.specs-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.specs-table th {
  background: var(--navy-dark);
  color: var(--white);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 0.875rem;
}

.specs-table tbody tr:hover {
  background: var(--gray-50);
}

.specs-table td:first-child {
  font-weight: 500;
  color: var(--navy-dark);
}

/* Product Cards */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.product-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.product-card__header {
  background: var(--navy-dark);
  color: var(--white);
  padding: 1.5rem;
  text-align: center;
}

.product-card__size {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.product-card__name {
  font-size: 0.875rem;
  color: var(--gray-300);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-card__body {
  padding: 1.5rem;
}

.product-card__spec {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.9rem;
}

.product-card__spec:last-child {
  border-bottom: none;
}

.product-card__spec-label {
  color: var(--gray-500);
}

.product-card__spec-value {
  font-weight: 600;
  color: var(--navy-dark);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--blue-bright) 0%, #0090c5 100%);
  color: var(--white);
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-section p {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

.contact-info h3 {
  margin-bottom: 1.5rem;
}

.contact-info p {
  color: var(--gray-600);
  margin-bottom: 2rem;
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-method__icon {
  width: 40px;
  height: 40px;
  background: var(--gray-100);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-bright);
  flex-shrink: 0;
}

.contact-method__label {
  font-size: 0.875rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.25rem;
}

.contact-method__value {
  font-weight: 600;
  color: var(--navy-dark);
}

.form {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 4px;
  box-shadow: var(--shadow-lg);
}

.form__title {
  margin-bottom: 1.5rem;
}

.form__group {
  margin-bottom: 1.25rem;
}

.form__label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--gray-700);
  font-size: 0.95rem;
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-primary);
  font-size: 1rem;
  border: 1px solid var(--gray-300);
  border-radius: 4px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  outline: none;
  border-color: var(--blue-bright);
  box-shadow: 0 0 0 3px rgba(0, 168, 232, 0.15);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 500px) {
  .form__row {
    grid-template-columns: 1fr;
  }
}

/* Footer */
.footer {
  background: var(--navy-darker);
  color: var(--gray-400);
  padding: 3rem 0 1.5rem;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  max-width: 300px;
}

.footer__links h4 {
  color: var(--white);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.footer__links ul {
  list-style: none;
}

.footer__links li {
  margin-bottom: 0.5rem;
}

.footer__links a {
  color: var(--gray-400);
  font-size: 0.9rem;
}

.footer__links a:hover {
  color: var(--white);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  font-size: 0.875rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__logo {
  height: 40px;
}

/* Standards Badges */
.standards {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.standard-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.75rem 1.25rem;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.standard-badge__icon {
  color: var(--blue-bright);
}

.standard-badge__text {
  font-size: 0.875rem;
  font-weight: 500;
}

/* About Page */
.about-hero {
  background: var(--navy-dark);
  color: var(--white);
  padding: 4rem 0;
}

.about-hero h1 {
  color: var(--white);
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  align-items: start;
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
  }
}

.about-sidebar {
  background: var(--gray-50);
  padding: 2rem;
  border-radius: 4px;
  border-left: 3px solid var(--blue-bright);
}

.about-sidebar h4 {
  margin-bottom: 1rem;
}

.about-sidebar ul {
  list-style: none;
}

.about-sidebar li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.95rem;
}

.about-sidebar li:last-child {
  border-bottom: none;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-blue { color: var(--blue-bright); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }