/* ============================================================================
   PREMIUM INCIDENT RESPONSE STEPPER
   TrustedOrb - $50k High-End Cybersecurity Consultancy Design
   ============================================================================ */

/* ==========================================================================
   SECTION CONTAINER
   ========================================================================== */

.ir-stepper-section {
  position: relative;
  padding: 100px 0 120px;
  background: linear-gradient(180deg, #f8fbff 0%, #f0f7ff 50%, #e8f0ff 100%);
  overflow: hidden;
}

.ir-stepper-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(37, 99, 235, 0.3) 50%, 
    transparent 100%
  );
}

/* Subtle background pattern */
.ir-stepper-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 90% 80%, rgba(30, 58, 138, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.ir-stepper {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  z-index: 1;
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.ir-stepper__header {
  text-align: center;
  margin-bottom: 56px;
}

.ir-stepper__header .section__heading {
  position: static;
  display: block;
  left: auto;
  transform: none;
}

.ir-stepper__title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 16px 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.ir-stepper__subtitle {
  font-size: 1.125rem;
  color: #64748b;
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.65;
}

/* ==========================================================================
   MAIN CARD CONTAINER
   ========================================================================== */

.ir-stepper__card {
  position: relative;
  border-radius: 28px;
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #2563eb 100%);
  box-shadow: 
    0 32px 80px rgba(15, 23, 42, 0.25),
    0 0 0 1px rgba(37, 99, 235, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

/* Decorative gradient overlay */
.ir-stepper__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 0% 0%, rgba(59, 130, 246, 0.3) 0%, transparent 50%),
    radial-gradient(ellipse at 100% 100%, rgba(30, 58, 138, 0.4) 0%, transparent 50%);
  pointer-events: none;
}

/* ==========================================================================
   TABS NAVIGATION (Desktop)
   ========================================================================== */

.ir-stepper__tabs {
  display: flex;
  position: relative;
  z-index: 2;
  padding: 0;
  margin: 0;
  list-style: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.15);
}

.ir-stepper__tab {
  flex: 1;
  position: relative;
  padding: 0;
  margin: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ir-stepper__tab-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  padding: 20px 12px 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  min-height: 110px;
}

.ir-stepper__tab-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 80%;
  height: 3px;
  background: linear-gradient(90deg, #60a5fa, #3b82f6);
  border-radius: 3px 3px 0 0;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ir-stepper__tab-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

.ir-stepper__tab-btn[aria-selected="true"] {
  background: rgba(255, 255, 255, 0.08);
}

.ir-stepper__tab-btn[aria-selected="true"]::after {
  transform: translateX(-50%) scaleX(1);
}

.ir-stepper__tab-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 10px;
  transition: all 0.3s ease;
}

.ir-stepper__tab-btn[aria-selected="true"] .ir-stepper__tab-number {
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
  border-color: #60a5fa;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
}

.ir-stepper__tab-btn:hover .ir-stepper__tab-number {
  border-color: rgba(255, 255, 255, 0.4);
  color: rgba(255, 255, 255, 0.9);
}

.ir-stepper__tab-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  line-height: 1.4;
  transition: color 0.3s ease;
  max-width: 130px;
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ir-stepper__tab-btn[aria-selected="true"] .ir-stepper__tab-title {
  color: #ffffff;
}

.ir-stepper__tab-btn:hover .ir-stepper__tab-title {
  color: rgba(255, 255, 255, 0.9);
}

/* ==========================================================================
   PANEL CONTENT
   ========================================================================== */

.ir-stepper__panels {
  position: relative;
  z-index: 2;
}

.ir-stepper__panel {
  display: none;
  padding: 56px 64px 64px;
  animation: panelFadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.ir-stepper__panel[aria-hidden="false"] {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

@keyframes panelFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Panel Content - Left Side */
.ir-stepper__panel-content {
  position: relative;
}

.ir-stepper__step-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #60a5fa;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  padding: 6px 14px;
  background: rgba(96, 165, 250, 0.1);
  border-radius: 20px;
  border: 1px solid rgba(96, 165, 250, 0.2);
}

.ir-stepper__panel-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 20px 0;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.ir-stepper__panel-text {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.8);
  margin: 0 0 32px 0;
}

.ir-stepper__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ir-stepper__list li {
  position: relative;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.92);
  padding: 18px 20px 18px 24px;
  line-height: 1.6;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
  margin-bottom: 8px;
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, #3b82f6, #60a5fa) 1;
  transition: all 0.25s ease;
}

.ir-stepper__list li:last-child {
  margin-bottom: 0;
}

.ir-stepper__list li:hover {
  background: rgba(255, 255, 255, 0.06);
  transform: translateX(4px);
}

.ir-stepper__list li::before {
  content: '';
  position: absolute;
  left: -3px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: #60a5fa;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(96, 165, 250, 0.6), 0 0 24px rgba(96, 165, 250, 0.3);
}

/* Panel Illustration - Right Side */
.ir-stepper__panel-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.ir-stepper__illustration {
  width: 100%;
  max-width: 440px;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* ==========================================================================
   MOBILE ACCORDION
   ========================================================================== */

.ir-stepper__accordion {
  display: none;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
  .ir-stepper__panel[aria-hidden="false"] {
    padding: 64px 80px 72px;
    gap: 72px;
  }
  
  .ir-stepper__tab-btn {
    min-height: 115px;
    padding: 22px 16px 20px;
  }
  
  .ir-stepper__tab-title {
    font-size: 0.8125rem;
    max-width: 150px;
    min-height: 36px;
  }
  
  .ir-stepper__tab-number {
    width: 36px;
    height: 36px;
    font-size: 0.875rem;
  }
}

/* Desktop to Tablet transition (below 1200px) */
@media (max-width: 1199px) {
  .ir-stepper__tab-btn {
    padding: 18px 10px 16px;
    min-height: 105px;
  }
  
  .ir-stepper__tab-number {
    width: 30px;
    height: 30px;
    font-size: 0.75rem;
    margin-bottom: 8px;
  }
  
  .ir-stepper__tab-title {
    font-size: 0.6875rem;
    max-width: 110px;
    min-height: 32px;
  }
  
  .ir-stepper__panel[aria-hidden="false"] {
    padding: 48px 48px 56px;
    gap: 40px;
  }
}

/* Tablet (below 1024px) */
@media (max-width: 1024px) {
  .ir-stepper-section {
    padding: 80px 0 100px;
  }
  
  .ir-stepper__tab-btn {
    padding: 16px 8px 14px;
    min-height: 100px;
  }
  
  .ir-stepper__tab-number {
    width: 28px;
    height: 28px;
    font-size: 0.6875rem;
  }
  
  .ir-stepper__tab-title {
    font-size: 0.625rem;
    max-width: 90px;
    min-height: 30px;
  }
  
  .ir-stepper__panel[aria-hidden="false"] {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px 40px 48px;
    text-align: center;
  }
  
  .ir-stepper__panel-content {
    order: 1;
  }
  
  .ir-stepper__panel-visual {
    order: 2;
  }
  
  .ir-stepper__step-label {
    justify-content: center;
  }
  
  .ir-stepper__list li {
    text-align: left;
  }
  
  .ir-stepper__illustration {
    max-width: 360px;
  }
}

/* Mobile Breakpoint - Switch to Accordion (below 900px) */
@media (max-width: 899px) {
  .ir-stepper-section {
    padding: 64px 0 80px;
  }
  
  .ir-stepper__header {
    margin-bottom: 40px;
  }
  
  .ir-stepper__tabs {
    display: none;
  }
  
  .ir-stepper__panels {
    display: none;
  }
  
  .ir-stepper__accordion {
    display: block;
  }
  
  .ir-stepper__card {
    border-radius: 24px;
    overflow: hidden;
  }
  
  /* Remove decorative corner gradients on mobile to prevent visual artifacts */
  .ir-stepper__card::before {
    display: none;
  }
  
  /* Accordion Item */
  .ir-accordion__item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  
  .ir-accordion__item:last-child {
    border-bottom: none;
  }
  
  /* Accordion Trigger */
  .ir-accordion__trigger {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 24px 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    gap: 16px;
    min-height: 72px;
    text-align: left;
  }
  
  .ir-accordion__trigger:hover {
    background: rgba(255, 255, 255, 0.05);
  }
  
  .ir-accordion__trigger[aria-expanded="true"] {
    background: rgba(255, 255, 255, 0.08);
  }
  
  .ir-accordion__number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    font-weight: 700;
    transition: all 0.3s ease;
  }
  
  .ir-accordion__trigger[aria-expanded="true"] .ir-accordion__number {
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
    border-color: #60a5fa;
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
  }
  
  .ir-accordion__title {
    flex: 1;
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.4;
    transition: color 0.3s ease;
  }
  
  .ir-accordion__trigger[aria-expanded="true"] .ir-accordion__title {
    color: #ffffff;
  }
  
  .ir-accordion__icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.5);
    transition: transform 0.3s ease, color 0.3s ease;
  }
  
  .ir-accordion__trigger[aria-expanded="true"] .ir-accordion__icon {
    transform: rotate(180deg);
    color: #60a5fa;
  }
  
  .ir-accordion__icon svg {
    width: 20px;
    height: 20px;
  }
  
  /* Accordion Content Panel */
  .ir-accordion__content {
    display: none;
    padding: 12px 24px 32px;
    animation: accordionSlideIn 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  }
  
  .ir-accordion__content[aria-hidden="false"] {
    display: block;
  }
  
  @keyframes accordionSlideIn {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .ir-accordion__label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.6875rem;
    font-weight: 700;
    color: #60a5fa;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 8px;
    margin-bottom: 16px;
    padding: 5px 12px;
    background: rgba(96, 165, 250, 0.1);
    border-radius: 16px;
    border: 1px solid rgba(96, 165, 250, 0.2);
  }
  
  .ir-accordion__text {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.8);
    margin: 0 0 24px 0;
  }
  
  .ir-accordion__list {
    list-style: none;
    padding: 0;
    margin: 0 0 28px 0;
  }
  
  .ir-accordion__list li {
    position: relative;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    padding: 14px 16px 14px 20px;
    line-height: 1.55;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    margin-bottom: 6px;
    border-left: 3px solid transparent;
    border-image: linear-gradient(180deg, #3b82f6, #60a5fa) 1;
  }
  
  .ir-accordion__list li:last-child {
    margin-bottom: 0;
  }
  
  .ir-accordion__list li::before {
    content: '';
    position: absolute;
    left: -3px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: #60a5fa;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(96, 165, 250, 0.5);
  }
  
  .ir-accordion__visual {
    display: flex;
    justify-content: center;
    margin-top: 8px;
  }
  
  .ir-accordion__illustration {
    width: 100%;
    max-width: 300px;
    height: auto;
    filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.25));
  }
}

/* Smaller Mobile (below 640px) */
@media (max-width: 639px) {
  .ir-stepper-section {
    padding: 48px 0 64px;
  }
  
  .ir-stepper {
    padding: 0 16px;
  }
  
  .ir-stepper__header {
    margin-bottom: 32px;
  }
  
  .ir-stepper__title {
    font-size: 1.75rem;
  }
  
  .ir-stepper__subtitle {
    font-size: 1rem;
  }
  
  .ir-stepper__card {
    border-radius: 20px;
  }
  
  .ir-accordion__trigger {
    padding: 20px 20px;
    gap: 14px;
    min-height: 64px;
  }
  
  .ir-accordion__number {
    width: 40px;
    height: 40px;
    min-width: 40px;
    font-size: 0.9375rem;
    border-radius: 10px;
  }
  
  .ir-accordion__title {
    font-size: 0.9375rem;
  }
  
  .ir-accordion__content {
    padding: 12px 20px 28px;
  }
  
  .ir-accordion__text {
    font-size: 0.875rem;
  }
  
  .ir-accordion__list li {
    font-size: 0.8125rem;
    padding: 12px 14px 12px 18px;
  }
  
  .ir-accordion__list li::before {
    width: 5px;
    height: 5px;
  }
  
  .ir-accordion__illustration {
    max-width: 260px;
  }
}

/* Very Small Mobile (below 400px) */
@media (max-width: 399px) {
  .ir-stepper__title {
    font-size: 1.5rem;
  }
  
  .ir-stepper__subtitle {
    font-size: 0.9375rem;
  }
  
  .ir-accordion__trigger {
    padding: 18px 16px;
    gap: 12px;
    min-height: 60px;
  }
  
  .ir-accordion__number {
    width: 36px;
    height: 36px;
    min-width: 36px;
    font-size: 0.875rem;
  }
  
  .ir-accordion__title {
    font-size: 0.875rem;
  }
  
  .ir-accordion__content {
    padding: 10px 16px 24px;
  }
  
  .ir-accordion__illustration {
    max-width: 220px;
  }
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .ir-stepper__panel,
  .ir-accordion__content,
  .ir-stepper__tab-btn,
  .ir-stepper__tab-number,
  .ir-accordion__trigger,
  .ir-accordion__number,
  .ir-accordion__icon {
    transition: none !important;
    animation: none !important;
  }
}

/* ==========================================================================
   CUSTOM VECTOR ILLUSTRATIONS - SVG Styling
   ========================================================================== */

.ir-stepper__illustration svg,
.ir-accordion__illustration svg {
  width: 100%;
  height: auto;
}

/* Ensure SVGs scale properly */
.ir-stepper__panel-visual svg,
.ir-accordion__visual svg {
  max-width: 100%;
  height: auto;
}