/* ============================================
   HS-TECH UI Design System
   Based on: D:\Flutter_dev\hstech\docs\hstech-ui-design-system.md
   ============================================ */

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

/* ============================================
   CSS VARIABLES - Design Tokens
   ============================================ */
:root {
  /* Primary Colors */
  --color-primary-blue: #2563EB;
  --color-primary-dark: #0F172A;
  --color-primary-light: #DBEAFE;

  /* Secondary Colors */
  --color-secondary-gray: #64748B;
  --color-secondary-light-gray: #F1F5F9;
  --color-secondary-dark-gray: #334155;

  /* Accent Colors */
  --color-accent-cyan: #06B6D4;
  --color-accent-green: #22C55E;
  --color-accent-red: #EF4444;

  /* Background Colors */
  --color-bg-white: #FFFFFF;
  --color-bg-light: #F8FAFC;
  --color-bg-dark: #020617;

  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Font Sizes */
  --text-h1: 48px;
  --text-h2: 36px;
  --text-h3: 28px;
  --text-h4: 22px;
  --text-body: 16px;
  --text-small: 14px;

  /* Spacing (Base unit: 8px) */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;

  /* Border Radius */
  --radius-small: 6px;
  --radius-medium: 12px;
  --radius-large: 20px;
  --radius-card: 16px;
  --radius-button: 10px;

  /* Shadows */
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-modal: 0 16px 40px rgba(0, 0, 0, 0.18);

  /* Animation Duration */
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* Layout */
  --max-width: 1200px;
  --side-padding: 24px;
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.6;
  color: #1F2937;
  background-color: var(--color-bg-white);
}

.body-padding-top {
  padding-top: 72px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
h4 { font-size: var(--text-h4); }

p {
  margin-bottom: var(--spacing-sm);
}

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

a:hover {
  color: #1D4ED8;
}

/* ============================================
   TYPOGRAPHY CLASSES
   ============================================ */
.text-h1 {
  font-family: var(--font-heading);
  font-size: var(--text-h1);
  font-weight: 700;
  line-height: 1.2;
}

.text-h2 {
  font-family: var(--font-heading);
  font-size: var(--text-h2);
  font-weight: 700;
  line-height: 1.3;
}

.text-h3 {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: 600;
  line-height: 1.4;
}

.text-h4 {
  font-family: var(--font-heading);
  font-size: var(--text-h4);
  font-weight: 600;
  line-height: 1.5;
}

.text-body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.6;
}

.text-small {
  font-family: var(--font-body);
  font-size: var(--text-small);
  line-height: 1.5;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ============================================
   BUTTON COMPONENTS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-button);
  font-weight: 600;
  font-size: var(--text-body);
  text-decoration: none;
  transition: all var(--duration-normal) ease;
  cursor: pointer;
  border: none;
  gap: 8px;
}

.btn:focus {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: #1D4ED8;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary-blue);
  border: 2px solid var(--color-primary-blue);
}

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

.btn-large {
  padding: 16px 40px;
  font-size: 18px;
}

.btn-small {
  padding: 8px 16px;
  font-size: var(--text-small);
}

/* ============================================
   CARD COMPONENTS
   ============================================ */
.card {
  background: var(--color-bg-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: all var(--duration-normal) ease;
}

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

.card-header {
  margin-bottom: var(--spacing-sm);
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--text-h4);
  font-weight: 600;
  color: #1F2937;
  margin-bottom: 12px;
}

.card-body {
  color: var(--color-secondary-gray);
  line-height: 1.6;
}

/* ============================================
   FORM COMPONENTS
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #1F2937;
  font-family: var(--font-body);
  font-size: var(--text-body);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: 1px solid #CBD5E1;
  border-radius: var(--radius-small);
  font-size: var(--text-body);
  font-family: var(--font-body);
  transition: border-color var(--duration-normal), box-shadow var(--duration-normal);
  background: white;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
  min-height: 120px;
  padding: 12px 16px;
  resize: vertical;
}

.form-select {
  cursor: pointer;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--side-padding);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section-lg {
  padding: 100px 0;
}

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

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

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

/* ============================================
   GRADIENT BACKGROUNDS
   ============================================ */
.hero-gradient {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary-blue));
}

.cta-gradient {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary-blue));
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  height: 72px;
  background: var(--color-bg-white);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all var(--duration-normal) ease;
}

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

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 var(--side-padding);
}

.navbar-brand {
  display: flex;
  align-items: center;
}

.navbar-brand .logo-img {
  max-height: 50px;
  width: auto;
  object-fit: contain;
}

.navbar-brand .logo-text {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary-blue);
}

.navbar-brand a {
  display: flex;
  align-items: center;
}

.navbar-menu {
  display: flex;
  align-items: center;
}

.navbar-menu ul {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 32px;
}

.navbar-menu a {
  color: #374151;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-small);
  transition: all var(--duration-normal);
}

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

.navbar-menu a.active {
  color: var(--color-primary-blue);
  font-weight: 600;
}

.navbar-menu .btn {
  padding: 8px 20px;
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.navbar-toggle span {
  width: 25px;
  height: 3px;
  background: #333;
  transition: var(--duration-normal);
}

/* Mobile menu active state */
.navbar-menu.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: white;
  padding: var(--spacing-sm);
  box-shadow: var(--shadow-card);
}

.navbar-menu.active ul {
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.navbar-menu.active a {
  display: block;
  padding: 12px 16px;
}

@media (max-width: 768px) {
  .navbar-menu {
    display: none;
  }

  .navbar-menu.active {
    display: flex;
  }

  .navbar-toggle {
    display: flex;
  }
}

/* ============================================
   SCROLL EFFECTS
   ============================================ */
.navbar.scrolling {
  box-shadow: var(--shadow-card);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-bg-dark);
  color: #CBD5F5 !important;
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer * {
  color: #CBD5F5;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3,
.footer-section h4 {
  color: white !important;
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-heading);
}

.footer-section p {
  color: #CBD5F5 !important;
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: #CBD5F5 !important;
  transition: color var(--duration-normal);
}

.footer-section a:hover {
  color: white !important;
}

.footer-section li {
  color: #CBD5F5 !important;
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section ul li {
  margin-bottom: 8px;
}

.footer-logo {
  margin-bottom: var(--spacing-sm);
}

.footer-logo img {
  width: 80px;
  height: 80px;
  max-width: 80px;
  max-height: 80px;
  object-fit: contain;
}

.footer-logo a {
  display: inline-block;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: var(--spacing-sm);
}

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

.social-links a:hover {
  background: var(--color-primary-blue);
  transform: translateY(-2px);
}

.contact-info li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.contact-info i {
  margin-top: 4px;
}

.contact-info a.whatsapp-link {
  color: #25D366;
}

.contact-info a.whatsapp-link:hover {
  color: #128C7E;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: var(--text-small);
}

/* ============================================
   GRID SYSTEM
   ============================================ */
.grid {
  display: grid;
  gap: var(--spacing-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 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ============================================
   SPACING UTILITIES
   ============================================ */
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.pt-xs { padding-top: var(--spacing-xs); }
.pt-sm { padding-top: var(--spacing-sm); }
.pt-md { padding-top: var(--spacing-md); }
.pt-lg { padding-top: var(--spacing-lg); }
.pt-xl { padding-top: var(--spacing-xl); }

.pb-xs { padding-bottom: var(--spacing-xs); }
.pb-sm { padding-bottom: var(--spacing-sm); }
.pb-md { padding-bottom: var(--spacing-md); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.pb-xl { padding-bottom: var(--spacing-xl); }

.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  animation: fadeIn var(--duration-normal) ease-in;
}

.slide-up {
  animation: slideUp var(--duration-normal) ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   BADGES & TAGS
   ============================================ */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: var(--text-small);
  font-weight: 600;
}

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

.badge-secondary {
  background: var(--color-secondary-light-gray);
  color: var(--color-secondary-gray);
}

.badge-success {
  background: var(--color-accent-green);
  color: white;
}

.badge-danger {
  background: var(--color-accent-red);
  color: white;
}

.badge-info {
  background: var(--color-accent-cyan);
  color: white;
}

.badge-warning {
  background: #EAB308;
  color: white;
}

/* ============================================
   ALERT MESSAGES
   ============================================ */
.alert {
  padding: var(--spacing-sm);
  border-radius: var(--radius-medium);
  margin-bottom: var(--spacing-md);
}

.alert-success {
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #86EFAC;
}

.alert-danger {
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

.alert-warning {
  background: #FEF3C7;
  color: #92400E;
  border: 1px solid #FCD34D;
}

.alert-info {
  background: #DBEAFE;
  color: #1E40AF;
  border: 1px solid #93C5FD;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .text-h1 { font-size: 40px; }
  .text-h2 { font-size: 32px; }
  .text-h3 { font-size: 24px; }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .text-h1 { font-size: 32px; }
  .text-h2 { font-size: 28px; }
  .text-h3 { font-size: 22px; }

  .navbar-menu {
    display: none;
  }

  .navbar-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: var(--spacing-sm);
    box-shadow: var(--shadow-card);
  }

  .section-lg {
    padding: var(--spacing-lg) 0;
  }

  .btn-large {
    padding: 14px 32px;
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  :root {
    --side-padding: 16px;
  }

  .container {
    padding: 0 16px;
  }

  .text-h1 { font-size: 28px; }
  .text-h2 { font-size: 24px; }
  .text-h3 { font-size: 20px; }
}

/* ============================================
   ICON CONTAINERS
   ============================================ */
.icon-box {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-medium);
  margin-bottom: var(--spacing-sm);
}

.icon-box-primary {
  background: linear-gradient(135deg, var(--color-primary-blue), #1D4ED8);
  color: white;
}

.icon-box-secondary {
  background: var(--color-secondary-light-gray);
  color: var(--color-secondary-gray);
}

.icon-box-circle {
  border-radius: 50%;
}

.icon-box-lg {
  width: 80px;
  height: 80px;
}

.icon-box-sm {
  width: 48px;
  height: 48px;
}

/* ============================================
   STATS CARDS
   ============================================ */
.stat-card {
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary-blue);
}

.stat-label {
  font-size: var(--text-body);
  color: var(--color-secondary-gray);
}

.stat-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 24px;
}

/* ============================================
   CONTACT INFO ITEMS
   ============================================ */
.contact-info-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-info-item .icon-box {
  margin-bottom: 0;
  flex-shrink: 0;
}

.contact-info-item h3 {
  margin-bottom: 4px;
}

.contact-info-item p {
  margin: 0;
}

/* ============================================
   TABLE STYLES
   ============================================ */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

/* ============================================
   FEATURED PORTFOLIO GRID
   ============================================ */
.featured-portfolio-grid .card {
  max-width: 100%;
  overflow: hidden;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

.table th,
.table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-secondary-light-gray);
}

.table th {
  background: var(--color-secondary-light-gray);
  font-weight: 600;
  color: #1F2937;
  font-family: var(--font-heading);
}

.table tbody tr:hover {
  background: var(--color-bg-light);
}

.table tbody tr:last-child td {
  border-bottom: none;
}