/*
 * Riyadah Co. Ltd - Enterprise Design System
 * Webflow-Ready CSS Architecture
 * Version: 1.0
 */

/* ========================================
   CSS RESET & BASE
   ======================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* ========================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ======================================== */

:root {
  /* Colors - Primary */
  --color-primary-blue: #0b4f6c;
  --color-teal-accent: #1ba6a6;
  --color-dark-gray: #1f2933;
  --color-light-gray: #f5f7fa;
  --color-white: #ffffff;

  /* Colors - Extended Palette */
  --color-text-dark: #1f2933;
  --color-text-medium: #52606d;
  --color-text-light: #7b8794;
  --color-border: #d9e2ec;
  --color-background: #f5f7fa;

  /* Colors - Semantic */
  --color-success: #0f9960;
  --color-warning: #f29d49;
  --color-error: #d64545;

  /* Typography Scale */
  --font-size-h1: 56px;
  --font-size-h2: 40px;
  --font-size-h3: 28px;
  --font-size-h4: 24px;
  --font-size-h5: 20px;
  --font-size-body-lg: 18px;
  --font-size-body: 16px;
  --font-size-body-sm: 14px;
  --font-size-caption: 12px;

  /* Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing Scale */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Section Padding */
  --section-padding-desktop: 96px;
  --section-padding-tablet: 64px;
  --section-padding-mobile: 40px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Dark Mode Variables */
.theme-dark {
  --color-white: #0b1220;
  --color-light-gray: #111827;
  --color-primary-blue: #1ba6a6;
  --color-text-dark: #e5e7eb;
  --color-text-medium: #d1d5db;
  --color-text-light: #9ca3af;
  --color-border: #1f2933;
  --color-background: #111827;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text-dark);
  margin-bottom: var(--space-md);
}

.heading-h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-semibold);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.heading-h2 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.heading-h3 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
}

.heading-h4 {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-semibold);
}

.heading-h5 {
  font-size: var(--font-size-h5);
  font-weight: var(--font-weight-medium);
}

.text-body {
  font-size: var(--font-size-body);
  line-height: var(--line-height-normal);
  color: var(--color-text-medium);
}

.text-body-lg {
  font-size: var(--font-size-body-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-medium);
}

.text-small {
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text-light);
}

.text-caption {
  font-size: var(--font-size-caption);
  line-height: var(--line-height-normal);
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Responsive Typography */
@media (max-width: 768px) {
  :root {
    --font-size-h1: 40px;
    --font-size-h2: 32px;
    --font-size-h3: 24px;
    --font-size-h4: 20px;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-h1: 32px;
    --font-size-h2: 28px;
    --font-size-h3: 22px;
  }
}

/* ========================================
   LAYOUT SYSTEM
   ======================================== */

.page-wrapper {
  width: 100%;
  overflow-x: hidden;
}

.section {
  padding: var(--section-padding-desktop) 0;
  position: relative;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

.section-lg {
  padding: 120px 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container-wide {
  max-width: 1400px;
}

.container-narrow {
  max-width: 900px;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

/* Responsive Layout */
@media (max-width: 1024px) {
  .section {
    padding: var(--section-padding-tablet) 0;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--section-padding-mobile) 0;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 var(--space-sm);
  }
}

/* ========================================
   COMPONENTS - BUTTONS
   ======================================== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  font-family: inherit;
}

.button-primary {
  background-color: var(--color-primary-blue);
  color: var(--color-white) !important;
  border-color: var(--color-primary-blue);
}

.button-primary:hover {
  background-color: #094361;
  border-color: #094361;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.button-secondary:hover {
  background-color: var(--color-primary-blue);
  color: var(--color-white);
  transform: translateY(-2px);
}

.button-teal {
  background-color: var(--color-teal-accent);
  color: var(--color-white);
  border-color: var(--color-teal-accent);
}

.button-teal:hover {
  background-color: #158f8f;
  border-color: #158f8f;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.button-large {
  padding: 18px 40px;
  font-size: var(--font-size-body-lg);
}

.button-small {
  padding: 10px 24px;
  font-size: var(--font-size-body-sm);
}

/* ========================================
   COMPONENTS - CARDS
   ======================================== */

.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
}

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

.card-service {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
}

.card-service .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  color: var(--color-primary-blue);
}

.card-service h3 {
  margin-bottom: var(--space-sm);
  color: var(--color-text-dark);
}

.card-service p {
  color: var(--color-text-medium);
  margin-bottom: var(--space-md);
}

.card-industry {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-lg);
  text-align: center;
}

.card-industry .icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-sm);
  color: var(--color-teal-accent);
}

.card-value {
  background: linear-gradient(
    135deg,
    var(--color-primary-blue) 0%,
    #0d5a7a 100%
  );
  color: var(--color-white);
  padding: var(--space-2xl);
}

.card-value h3 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.card-value p {
  color: rgba(255, 255, 255, 0.9);
}

/* ========================================
   COMPONENTS - NAVIGATION
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

.navbar-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  padding: 5px 0;
}

.navbar-brand img {
  height: 48px;
  width: auto;
  display: block;
}

.footer-logo {
  height: 50px;
  width: auto;
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

@media (max-width: 768px) {
  .navbar-brand img {
    height: 36px;
  }

  .footer-logo {
    height: 40px;
  }
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.navbar-menu a {
  color: var(--color-text-dark);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar-menu a:hover {
  color: var(--color-primary-blue);
}

.navbar-menu a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary-blue);
  transition: width var(--transition-base);
}

.navbar-menu a:hover::after {
  width: 100%;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-dark);
  margin: 5px 0;
  transition: all var(--transition-base);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .navbar-toggle {
    display: block;
  }

  .navbar-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: var(--space-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .navbar-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

/* ========================================
   COMPONENTS - HERO SECTION
   ======================================== */

.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background-color: var(--color-primary-blue);
  color: var(--color-white);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(11, 79, 108, 0.9) 0%,
    rgba(11, 79, 108, 0.7) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.hero p {
  font-size: var(--font-size-body-lg);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--space-xl);
  line-height: var(--line-height-relaxed);
}

.hero-small {
  min-height: 400px;
}

@media (max-width: 768px) {
  .hero {
    min-height: 500px;
  }

  .hero-small {
    min-height: 300px;
  }
}

/* ========================================
   COMPONENTS - LOGO GRID
   ======================================== */

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-lg);
  align-items: center;
  justify-items: center;
}

.logo-item {
  width: 100%;
  max-width: 180px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm);
  filter: grayscale(100%);
  opacity: 0.6;
  transition: all var(--transition-base);
}

.logo-item:hover {
  filter: grayscale(0%);
  opacity: 1;
}

.logo-item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* ========================================
   COMPONENTS - FORMS
   ======================================== */

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-body);
  font-family: inherit;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  color: var(--color-text-dark);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary-blue);
  box-shadow: 0 0 0 3px rgba(11, 79, 108, 0.1);
}

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

.form-error {
  color: var(--color-error);
  font-size: var(--font-size-body-sm);
  margin-top: var(--space-xs);
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Spacing Utilities */
.margin-bottom-sm {
  margin-bottom: var(--space-sm);
}
.margin-bottom-md {
  margin-bottom: var(--space-md);
}
.margin-bottom-lg {
  margin-bottom: var(--space-lg);
}
.margin-bottom-xl {
  margin-bottom: var(--space-xl);
}

.margin-top-sm {
  margin-top: var(--space-sm);
}
.margin-top-md {
  margin-top: var(--space-md);
}
.margin-top-lg {
  margin-top: var(--space-lg);
}
.margin-top-xl {
  margin-top: var(--space-xl);
}

.padding-top-sm {
  padding-top: var(--space-sm);
}
.padding-top-md {
  padding-top: var(--space-md);
}
.padding-top-lg {
  padding-top: var(--space-lg);
}
.padding-top-xl {
  padding-top: var(--space-xl);
}

.padding-bottom-sm {
  padding-bottom: var(--space-sm);
}
.padding-bottom-md {
  padding-bottom: var(--space-md);
}
.padding-bottom-lg {
  padding-bottom: var(--space-lg);
}
.padding-bottom-xl {
  padding-bottom: var(--space-xl);
}

/* Text Alignment */
.text-left {
  text-align: left;
}
.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}

/* Text Colors */
.text-primary {
  color: var(--color-primary-blue);
}
.text-teal {
  color: var(--color-teal-accent);
}
.text-dark {
  color: var(--color-text-dark);
}
.text-medium {
  color: var(--color-text-medium);
}
.text-light {
  color: var(--color-text-light);
}
.text-white {
  color: var(--color-white);
}

/* Background Colors */
.bg-white {
  background-color: var(--color-white);
}
.bg-light {
  background-color: var(--color-light-gray);
}
.bg-primary {
  background-color: var(--color-primary-blue);
}
.bg-teal {
  background-color: var(--color-teal-accent);
}

/* Display Utilities */
.hidden {
  display: none;
}
.block {
  display: block;
}
.inline-block {
  display: inline-block;
}

/* Responsive Utilities */
@media (max-width: 768px) {
  .hidden-mobile {
    display: none;
  }
}

@media (min-width: 769px) {
  .hidden-desktop {
    display: none;
  }
}

/* ========================================
   RTL SUPPORT (ARABIC)
   ======================================== */

[dir="rtl"] {
  direction: rtl;
}

[dir="rtl"] .navbar-menu {
  gap: var(--space-lg);
}

[dir="rtl"] .card-service,
[dir="rtl"] .card-industry {
  text-align: center;
}

[dir="rtl"] .flex-between {
  flex-direction: row-reverse;
}