/* ==========================================================================
   Oxin Vira — Main Stylesheet
   ========================================================================== */

/* ---------- CSS Variables ---------- */
:root {
  --color-primary: #0072BC;
  --color-secondary: #00B5AD;
  --color-accent: #00AEEF;
  --color-dark: #1A1F2E;
  --color-text: #2C3E50;
  --color-text-light: #6B7A8F;
  --color-light-bg: #F5F7FA;
  --color-white: #FFFFFF;
  --color-border: #E1E8ED;

  --gradient-primary: linear-gradient(135deg, #0072BC 0%, #00B5AD 100%);
  --gradient-accent: linear-gradient(135deg, #00AEEF 0%, #0072BC 100%);

  --font-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-ar: 'Cairo', 'Tajawal', sans-serif;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 114, 188, 0.12);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  --container: 1200px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-en);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-white);
  overflow-x: hidden;
}

body[dir="rtl"] {
  font-family: var(--font-ar);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-secondary);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-dark);
  margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
  color: var(--color-text);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  margin-bottom: 1rem;
}

.section-title p {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

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

.btn-white:hover {
  background: var(--color-light-bg);
  color: var(--color-primary);
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo img {
  height: 44px;
  width: auto;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: -0.5px;
}

/* ---------- Navigation ---------- */
.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 10px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: rgba(0, 114, 188, 0.06);
}

/* ---------- Language Switch ---------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--color-light-bg);
  border-radius: var(--radius-md);
  margin-left: 16px;
}

.lang-switch a {
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-light);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.lang-switch a:hover {
  color: var(--color-primary);
}

.lang-switch a.active {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* ---------- Mobile Menu Toggle ---------- */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-height) + 80px) 0 100px;
  background: linear-gradient(180deg, #F5F9FC 0%, #FFFFFF 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 181, 173, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 114, 188, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--color-text-light);
  margin-bottom: 2.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ---------- Stats Bar ---------- */
.stats {
  padding: 80px 0;
  background: var(--color-white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--color-light-bg);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

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

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--color-text-light);
  font-weight: 500;
}

/* ---------- Section ---------- */
.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--color-light-bg);
}

/* ---------- Products Grid ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.product-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-white);
  font-size: 1.5rem;
}

.product-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.product-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.product-link:hover {
  gap: 10px;
}

/* ---------- Categories ---------- */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.category-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.category-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.category-card h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.category-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin: 0;
}

/* ---------- Why Us ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

.why-item {
  text-align: center;
}

.why-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: rgba(0, 114, 188, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.75rem;
}

.why-item h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.why-item p {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

/* ---------- CTA Section ---------- */
.cta-section {
  padding: 80px 0;
  background: var(--gradient-primary);
  color: var(--color-white);
  text-align: center;
}

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

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  margin-top: 16px;
  max-width: 320px;
}

.footer h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--color-secondary);
}

.footer-contact li {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.footer-contact i {
  color: var(--color-secondary);
  flex-shrink: 0;
  margin-top: 4px;
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact a:hover {
  color: var(--color-secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  margin: 0;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--color-secondary);
  color: var(--color-white);
}

/* ---------- Page Hero (Inner Pages) ---------- */
.page-hero {
  padding: calc(var(--header-height) + 60px) 0 60px;
  background: linear-gradient(180deg, #F5F9FC 0%, #FFFFFF 100%);
  text-align: center;
}

.page-hero h1 {
  margin-bottom: 1rem;
}

.page-hero p {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.breadcrumb a {
  color: var(--color-text-light);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb span {
  color: var(--color-primary);
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
}

.fade-in.visible {
  animation: fadeInUp 0.7s ease forwards;
}

/* ---------- Scroll to Top ---------- */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

body[dir="rtl"] .scroll-top {
  right: auto;
  left: 30px;
}

/* ==========================================================================
   Products Page — Filter
   ========================================================================== */

.product-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-light);
  background: var(--color-light-bg);
  border-radius: 50px;
  transition: var(--transition);
  border: 1px solid transparent;
}

.filter-btn:hover {
  color: var(--color-primary);
  background: rgba(0, 114, 188, 0.08);
}

.filter-btn.active {
  color: var(--color-white);
  background: var(--gradient-primary);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Products Page — Custom Solutions Grid
   ========================================================================== */

.custom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.custom-item {
  padding: 28px 20px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: var(--transition);
}

.custom-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.custom-item i {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: block;
}

.custom-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-dark);
  margin: 0;
  line-height: 1.4;
}

/* Responsive */
@media (max-width: 768px) {
  .custom-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
  }

  .custom-item {
    padding: 20px 14px;
  }

  .custom-item i {
    font-size: 1.4rem;
  }

  .custom-item h4 {
    font-size: 0.85rem;
  }
}