/* ===================================
   iPro Consulting & IT Services
   Design System: mtrans
   =================================== */

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

/* ===== ROOT VARIABLES - MTRANS DESIGN SYSTEM ===== */
:root {
  /* Colors - Primary */
  --color-bg-primary: #FFFFFF;
  --color-bg-alt: #F8F9FA;
  --color-bg-section: #F5F6F7;
  
  /* Colors - Text */
  --color-text-heading: #1A1D29;
  --color-text-body: #4A5568;
  --color-text-muted: #718096;
  --color-text-light: #A0AEC0;
  
  /* Colors - Accent */
  --color-accent-primary: #2D3748;
  --color-accent-primary-hover: #1A202C;
  --color-accent-secondary: #4299E1;
  --color-accent-secondary-hover: #3182CE;
  
  /* Colors - Card */
  --color-card-bg: #FFFFFF;
  --color-card-border: #E2E8F0;
  --color-card-shadow: rgba(0, 0, 0, 0.08);
  
  /* Colors - State */
  --color-success: #48BB78;
  --color-warning: #ED8936;
  --color-error: #F56565;
  --color-info: #4299E1;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-focus: 0 0 0 3px rgba(66, 153, 225, 0.5);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
  
  /* Container */
  --container-max-width: 1200px;
  --container-padding: clamp(1rem, 4vw, 2rem);
  --section-padding-y: clamp(3rem, 8vw, 6rem);
}

/* ===== BASE STYLES ===== */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-body);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-heading);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-sm);
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: var(--space-sm);
}

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

a {
  color: var(--color-accent-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

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

.section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
}

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

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

.text-muted {
  color: var(--color-text-muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== HEADER / NAVBAR ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 72px;
  background-color: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
}

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

.navbar-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-heading);
  text-decoration: none;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.navbar-toggle-icon {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-heading);
  position: relative;
  transition: var(--transition-base);
}

.navbar-toggle-icon::before,
.navbar-toggle-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-heading);
  transition: var(--transition-base);
}

.navbar-toggle-icon::before {
  top: -8px;
}

.navbar-toggle-icon::after {
  bottom: -8px;
}

.navbar-toggle.active .navbar-toggle-icon {
  background-color: transparent;
}

.navbar-toggle.active .navbar-toggle-icon::before {
  transform: rotate(45deg);
  top: 0;
}

.navbar-toggle.active .navbar-toggle-icon::after {
  transform: rotate(-45deg);
  bottom: 0;
}

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

.navbar-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-body);
  padding: 0.5rem 1rem;
  transition: color var(--transition-base);
  text-decoration: none;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--color-text-heading);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: inherit;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn-primary {
  background-color: var(--color-accent-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-accent-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  color: #FFFFFF;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-heading);
  border: 2px solid var(--color-card-border);
}

.btn-secondary:hover {
  background-color: var(--color-bg-alt);
  border-color: var(--color-accent-primary);
  color: var(--color-text-heading);
}

.btn-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

/* ===== HERO ===== */
.hero {
  padding-top: clamp(4rem, 12vh, 8rem);
  padding-bottom: clamp(4rem, 12vh, 8rem);
  text-align: center;
  background-color: var(--color-bg-primary);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

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

.hero-subheading {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

/* ===== CARDS ===== */
.card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-slow);
  height: 100%;
}

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

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

.card-title {
  margin-bottom: var(--space-sm);
}

.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-link:hover {
  color: inherit;
}

/* ===== GRID LAYOUTS ===== */
.grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

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

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ===== LISTS ===== */
.feature-list {
  list-style: none;
  margin-bottom: var(--space-lg);
}

.feature-list li {
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
  position: relative;
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text-heading);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent-secondary);
  box-shadow: var(--shadow-focus);
}

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

.form-select {
  appearance: none;
  background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20width%3D%2220%22%20height%3D%2220%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Cpath%20d%3D%22M5%207l5%205%205-5z%22%20fill%3D%22%23718096%22%2F%3E%3C%2Fsvg%3E');
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

.form-error {
  display: block;
  font-size: 0.875rem;
  color: var(--color-error);
  margin-top: var(--space-xs);
}

.form-input.error,
.form-textarea.error,
.form-select.error {
  border-color: var(--color-error);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
}

.form-checkbox input {
  margin-top: 0.25rem;
  flex-shrink: 0;
  width: 1.125rem;
  height: 1.125rem;
  cursor: pointer;
}

.form-checkbox label {
  font-size: 0.875rem;
  line-height: 1.6;
  cursor: pointer;
}

.form-radio-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.form-radio {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.form-radio input {
  width: 1.125rem;
  height: 1.125rem;
  cursor: pointer;
}

.form-radio label {
  cursor: pointer;
}

/* ===== CTA BAND ===== */
.cta-band {
  background-color: var(--color-bg-section);
  padding: var(--space-2xl) 0;
  text-align: center;
}

.cta-band h2 {
  margin-bottom: var(--space-md);
}

.cta-band p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== CERTIFICATIONS ===== */
.cert-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
  align-items: center;
}

.cert-badge {
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-heading);
  text-align: center;
}

/* ===== PROCESS STEPS ===== */
.process-steps {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .process-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.process-step {
  text-align: center;
  padding: var(--space-lg);
}

.process-step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-accent-secondary);
  color: #FFFFFF;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

/* ===== TABLE ===== */
.table-responsive {
  overflow-x: auto;
  margin-bottom: var(--space-lg);
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
}

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

th, td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-card-border);
}

th {
  font-weight: 600;
  color: var(--color-text-heading);
}

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

/* ===== FOOTER ===== */
.footer {
  background-color: var(--color-bg-section);
  border-top: 1px solid var(--color-card-border);
  padding: var(--space-3xl) 0;
}

.footer-grid {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-xl);
}

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

.footer-heading {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-link {
  font-size: 0.95rem;
  color: var(--color-text-body);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--color-text-heading);
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-card-border);
  text-align: center;
}

/* ===== MOBILE NAVIGATION ===== */
@media (max-width: 767px) {
  .navbar-toggle {
    display: block;
  }
  
  .navbar-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-card-border);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md);
    gap: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
  }
  
  .navbar-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .navbar-link {
    padding: var(--space-sm);
    border-bottom: 1px solid var(--color-card-border);
  }
  
  .navbar-link:last-child {
    border-bottom: none;
  }
  
  .navbar-cta {
    margin-top: var(--space-sm);
  }
}

/* ===== ACCORDION (FAQ) ===== */
.accordion {
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-card-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  padding: var(--space-md);
  text-align: left;
  background-color: var(--color-bg-primary);
  border: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-heading);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-base);
}

.accordion-header:hover {
  background-color: var(--color-bg-alt);
}

.accordion-header:focus-visible {
  outline: 2px solid var(--color-accent-secondary);
  outline-offset: -2px;
}

.accordion-icon {
  font-size: 1.25rem;
  transition: transform var(--transition-base);
}

.accordion-header.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion-content.active {
  max-height: 1000px;
}

.accordion-body {
  padding: var(--space-md);
  color: var(--color-text-body);
  line-height: 1.7;
}

/* ===== SUCCESS MESSAGE ===== */
.success-message {
  background-color: var(--color-success);
  color: #FFFFFF;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  text-align: center;
}

/* ===== RESPONSIVE UTILITIES ===== */
@media (max-width: 767px) {
  .btn-group {
    flex-direction: column;
    width: 100%;
  }
  
  .btn {
    width: 100%;
  }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Skip to main content link */
.skip-to-main {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-accent-primary);
  color: #FFFFFF;
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  z-index: 9999;
}

.skip-to-main:focus {
  top: 0;
}

/* ===== TWO COLUMN LAYOUT ===== */
.two-col {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
  align-items: start;
}

@media (min-width: 768px) {
  .two-col {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== ICON STYLES ===== */
.icon-list {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .icon-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.icon-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.icon-item-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  color: var(--color-accent-secondary);
}

.icon-item-content h4 {
  margin-bottom: var(--space-xs);
}

/* ===== BADGE ===== */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background-color: var(--color-bg-section);
  color: var(--color-text-heading);
}