/**
 * QubikStack - Components CSS
 * Buttons, Badges, Cards, Tilt Effects, Counters, Marquee, Timeline, Cookie Banner
 */

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header.text-center {
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: 0.85rem;
  padding: 0.35rem 0.85rem;
  background: rgba(var(--color-primary-rgb), 0.08);
  border: 1px solid rgba(var(--color-primary-rgb), 0.25);
  border-radius: var(--radius-full);
}

.section-title {
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.section-desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-align: center;
  white-space: nowrap;
  max-width: 100%;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background: var(--grad-primary);
  color: #040810;
  box-shadow: 0 4px 20px rgba(0, 210, 255, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(0, 210, 255, 0.6);
  transform: translateY(-2px);
  color: #000000;
}

.btn-secondary {
  background: var(--surface-card);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: rgba(var(--color-primary-rgb), 0.1);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 1.1rem 2.25rem;
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn-icon svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-bounce);
}

.btn:hover .btn-icon svg {
  transform: translateX(3px);
}

/* ==========================================================================
   Badges & Tags
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1;
}

.badge-cyan {
  background: rgba(var(--color-primary-rgb), 0.12);
  color: var(--color-primary);
  border: 1px solid rgba(var(--color-primary-rgb), 0.3);
}

.badge-violet {
  background: rgba(var(--color-accent-violet-rgb), 0.12);
  color: var(--color-accent-violet);
  border: 1px solid rgba(var(--color-accent-violet-rgb), 0.3);
}

.badge-green {
  background: rgba(var(--color-accent-green-rgb), 0.12);
  color: var(--color-accent-green);
  border: 1px solid rgba(var(--color-accent-green-rgb), 0.3);
}

.badge-placeholder {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border: 1px dashed rgba(245, 158, 11, 0.4);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.6rem;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-accent-green);
  box-shadow: 0 0 8px var(--color-accent-green);
}

/* ==========================================================================
   Cards & 3D Tilt Motif
   ========================================================================== */
.card {
  position: relative;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(1.25rem, 3vw, 2.25rem);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  min-width: 0;
  max-width: 100%;
}

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

.card-stacked {
  position: relative;
}

.card-stacked::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 12px;
  right: 12px;
  height: 6px;
  background: rgba(var(--color-primary-rgb), 0.15);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  border-bottom: none;
  pointer-events: none;
}

.card-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(var(--color-primary-rgb), 0.1);
  border: 1px solid rgba(var(--color-primary-rgb), 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--color-primary);
  transition: transform var(--transition-bounce), background-color var(--transition-fast);
}

.card:hover .card-icon-box {
  transform: scale(1.1) rotate(-3deg);
  background: rgba(var(--color-primary-rgb), 0.2);
}

.card-icon-box svg {
  width: 26px;
  height: 26px;
}

/* Violet Variant */
.card-violet .card-icon-box {
  background: rgba(var(--color-accent-violet-rgb), 0.1);
  border-color: rgba(var(--color-accent-violet-rgb), 0.25);
  color: var(--color-accent-violet);
}

.card-violet:hover {
  border-color: rgba(var(--color-accent-violet-rgb), 0.4);
  box-shadow: 0 10px 30px rgba(var(--color-accent-violet-rgb), 0.15);
}

/* ==========================================================================
   Hero Section & 3D Interactive Canvas
   ========================================================================== */
.hero-section {
  position: relative;
  /* Grow with content; never less than viewport minus header on tall screens */
  min-height: calc(100dvh - var(--header-height));
  padding-top: calc(var(--header-height) + clamp(2rem, 4vw, 4rem));
  padding-bottom: clamp(3rem, 6vw, 6rem);
  /* overflow must be visible so canvas and floating cards are never clipped */
  overflow: visible;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-grid {
    gap: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 1.08;
  margin-bottom: 1.5rem;
  letter-spacing: -0.035em;
}

.hero-subhead {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2.25rem;
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.15rem;
  margin-bottom: 2.5rem;
}

.hero-trust-pills {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* 3D Canvas Container — sized to its grid cell, never overflows the screen */
.hero-canvas-container {
  position: relative;
  width: 100%;
  /* Mobile: smaller so stacked layout fits short screens.
     Tablet+: grow with vw. Desktop: cap at 520px. */
  height: clamp(260px, 55vw, 520px);
  max-width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 768px) {
  .hero-canvas-container {
    height: clamp(360px, 45vw, 520px);
  }
}

#hero-3d-canvas {
  /* Fill the container exactly — Three.js renderer.setSize handles pixel dims */
  width: 100% !important;
  height: 100% !important;
  display: block;
  outline: none;
}


/* Floating interactive overlay badges on Hero Canvas */
.hero-floating-card {
  position: absolute;
  background: var(--surface-glass);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  pointer-events: none;
  z-index: 3;
}

.hero-floating-card-1 {
  bottom: 20px;
  left: 20px;
  animation: floatSlow 5s ease-in-out infinite;
}

.hero-floating-card-2 {
  top: 25px;
  right: 20px;
  animation: floatSlow 6s ease-in-out infinite reverse;
}

.floating-card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(var(--color-primary-rgb), 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.floating-card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--text-primary);
}

.floating-card-desc {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Trust Bar & Animated Counter Stats
   ========================================================================== */
.trust-bar-section {
  position: relative;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-secondary);
  padding-top: 3rem;
  padding-bottom: 3rem;
}

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

@media (min-width: 900px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 15%;
  right: 0;
  height: 70%;
  width: 1px;
  background: var(--border-subtle);
  display: none;
}

@media (min-width: 900px) {
  .stat-item:not(:last-child)::after {
    display: block;
  }
}

.stat-number-wrapper {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
  margin-bottom: 0.5rem;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 3.25rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stat-suffix {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   Services Dual-Pillar Section
   ========================================================================== */
.services-pillar-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  width: 100%;
}

@media (min-width: 900px) {
  .services-pillar-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.pillar-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: var(--radius-xl);
  padding: clamp(1.25rem, 4vw, 3rem);
  background: var(--surface-card);
  border: 1px solid var(--border-medium);
  position: relative;
  min-width: 0;
  max-width: 100%;
}

.pillar-card-header {
  margin-bottom: 1.75rem;
}

.pillar-title {
  font-size: var(--text-2xl);
  margin-bottom: 0.75rem;
}

.pillar-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.service-subitems-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

@media (min-width: 600px) {
  .service-subitems-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-mini-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.service-mini-item:hover {
  background: rgba(var(--color-primary-rgb), 0.05);
  border-color: rgba(var(--color-primary-rgb), 0.3);
  transform: translateX(2px);
}

.service-mini-icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.service-mini-text h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: 2px;
}

.service-mini-text p {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin: 0;
  line-height: 1.4;
}

/* ==========================================================================
   "Why QubikStack" Value Grid
   ========================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.why-card {
  padding: 2rem;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
}

.why-card-title {
  font-size: var(--text-lg);
  margin-bottom: 0.75rem;
}

.why-card-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   Interactive Process Timeline
   ========================================================================== */
.process-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.timeline-step {
  display: flex;
  align-items: flex-start;
  gap: 1.75rem;
  position: relative;
}

.step-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-base);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.2);
  z-index: 2;
}

.step-line {
  width: 2px;
  flex-grow: 1;
  background: var(--border-subtle);
  margin: 10px 0;
  min-height: 60px;
}

.timeline-step:last-child .step-line {
  display: none;
}

.step-card {
  flex-grow: 1;
  padding: 1.75rem;
}

.step-title {
  font-size: var(--text-xl);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.step-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ==========================================================================
   Technologies Marquee
   ========================================================================== */
.marquee-container {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  contain: paint;
  user-select: none;
  display: flex;
  gap: 1.5rem;
  padding: 1rem 0;
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.marquee-track {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  animation: marqueeScroll 35s linear infinite;
}

.marquee-track-reverse {
  animation: marqueeScrollReverse 40s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

.tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.25rem;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.tech-badge:hover {
  border-color: var(--color-primary);
  background: var(--bg-tertiary);
  transform: translateY(-2px);
  color: var(--color-primary);
}

.tech-badge-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Industries We Serve Grid
   ========================================================================== */
.industries-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 600px) {
  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.industry-card {
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--surface-card);
  transition: all var(--transition-base);
}

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

.industry-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.industry-title {
  font-size: var(--text-lg);
  margin-bottom: 0.5rem;
}

.industry-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* ==========================================================================
   Testimonials (Placeholder clearly marked)
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.testimonial-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem;
  border-radius: var(--radius-lg);
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  color: #f59e0b;
  margin-bottom: 1.25rem;
}

.testimonial-quote {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--text-primary);
  font-style: italic;
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

.author-avatar-placeholder {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
  font-size: var(--text-xs);
}

.author-name {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-primary);
}

.author-title {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

/* ==========================================================================
   Final Call To Action Banner
   ========================================================================== */
.cta-banner-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(13, 19, 34, 0.95) 0%, rgba(21, 30, 50, 0.95) 100%);
  border: 1px solid var(--border-bright);
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 3.5rem);
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.cta-banner-wrapper::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 350px;
  background: radial-gradient(ellipse, rgba(0, 210, 255, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
}

.cta-banner-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: 1.25rem;
}

.cta-banner-desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: 2.25rem;
}

.cta-banner-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
}

/* ==========================================================================
   Cookie Consent Banner
   ========================================================================== */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  max-width: 440px;
  background: var(--surface-glass);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transform: translateY(120%);
  transition: transform var(--transition-slow);
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-banner-text {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.6;
}

.cookie-banner-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}


/* ==========================================================================
   FAQ Accordions
   ========================================================================== */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--surface-card);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
  overflow: hidden;
}

.accordion-item.is-open {
  border-color: var(--color-primary);
  background: var(--bg-tertiary);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  gap: 1rem;
}

.accordion-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-base);
  color: var(--color-primary);
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow) ease-in-out, padding var(--transition-fast);
}

.accordion-item.is-open .accordion-body {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem 1.5rem;
}

.accordion-body p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   Filterable Technology Matrix Grid
   ========================================================================== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.5rem 1.15rem;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  background: var(--surface-card);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--text-primary);
}

.filter-btn.is-active {
  background: var(--grad-primary);
  color: #000000;
  border-color: transparent;
  box-shadow: 0 2px 10px rgba(0, 210, 255, 0.3);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.tech-grid-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.tech-grid-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  background: var(--bg-tertiary);
}

.tech-grid-card.is-hidden {
  display: none !important;
}

.tech-grid-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(var(--color-primary-rgb), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.25rem;
}

.tech-grid-info h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: 2px;
}

.tech-grid-info p {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-bottom: 6px;
  line-height: 1.4;
}

/* ==========================================================================
   Engagement Models & Deliverables Cards
   ========================================================================== */
.engagement-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

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

.engagement-card {
  padding: 2.25rem 1.75rem;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--border-medium);
  background: var(--surface-card);
  position: relative;
}

.engagement-card.featured {
  border-color: var(--color-primary);
  background: linear-gradient(180deg, rgba(0, 210, 255, 0.08) 0%, rgba(19, 28, 49, 0.8) 100%);
  box-shadow: 0 0 30px rgba(0, 210, 255, 0.15);
}

.deliverables-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.deliverable-card {
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--surface-card);
}

/* ==========================================================================
   Team Cards (Placeholders clearly marked)
   ========================================================================== */
.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 640px) {
  .team-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.team-card {
  text-align: center;
  padding: 2.25rem 1.5rem;
  border-radius: var(--radius-xl);
}

.team-avatar-placeholder {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  margin: 0 auto 1.25rem;
  background: var(--bg-elevated);
  border: 2px dashed rgba(var(--color-primary-rgb), 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* ==========================================================================
   Contact Form & Inputs
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3rem;
  width: 100%;
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.form-control,
.form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
  outline: none;
}

.form-select {
  cursor: pointer;
  appearance: auto;
}

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.form-checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--color-primary);
  width: 16px;
  height: 16px;
}

.form-feedback {
  padding: 1rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  display: none;
}

.form-feedback.is-success {
  display: block;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.form-feedback.is-error {
  display: block;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

.form-control.has-error,
.form-select.has-error {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25) !important;
}

.form-checkbox-label input[type="checkbox"].has-error {
  outline: 2px solid #ef4444;
  outline-offset: 2px;
}

/* Honeypot field (hidden from real users) */
.form-honeypot {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

/* ==========================================================================
   Legal & Static Pages
   ========================================================================== */
.legal-content {
  max-width: 820px;
  margin: 0 auto;
}

.legal-content h2 {
  font-size: var(--text-2xl);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.legal-content h3 {
  font-size: var(--text-lg);
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

.legal-content p,
.legal-content ul {
  margin-bottom: 1.25rem;
  line-height: 1.75;
}

.legal-content ul {
  padding-left: 1.5rem;
  list-style: disc;
}

.legal-content li {
  margin-bottom: 0.5rem;
}

/* ==========================================================================
   404 Page
   ========================================================================== */
.error-404-wrapper {
  text-align: center;
  padding: clamp(3rem, 8vw, 6rem) 1.5rem;
  max-width: 680px;
  margin: 0 auto;
}

.error-404-number {
  font-family: var(--font-heading);
  font-size: clamp(6rem, 15vw, 11rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.05em;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}


/* ==========================================================================
   Mobile Responsive Refinements (320px, 375px, 414px)
   ========================================================================== */
@media (max-width: 480px) {
  .hero-floating-card {
    padding: 0.45rem 0.65rem;
    gap: 0.5rem;
    max-width: calc(100% - 20px);
  }
  
  .floating-card-icon {
    width: 28px;
    height: 28px;
  }

  .floating-card-title {
    font-size: 0.72rem;
  }

  .floating-card-desc {
    font-size: 0.65rem;
  }

  .hero-floating-card-1 {
    bottom: 10px;
    left: 10px;
  }

  .hero-floating-card-2 {
    top: 10px;
    right: 10px;
  }

  .btn-lg {
    padding: 0.85rem 1.25rem;
    font-size: var(--text-sm);
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .cta-banner-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-banner-actions .btn {
    width: 100%;
  }

  .btn {
    white-space: normal;
    padding: 0.75rem 1.15rem;
    font-size: var(--text-xs);
    text-align: center;
  }

  .pillar-card {
    padding: 1.5rem 1rem;
  }

  .card {
    padding: 1.25rem 1rem;
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }

  .deliverables-grid {
    grid-template-columns: 1fr;
  }

  .cookie-banner {
    left: 12px;
    right: 12px;
    bottom: 12px;
    max-width: calc(100vw - 24px);
    padding: 1rem;
  }

  .floating-actions {
    bottom: 16px;
    right: 16px;
  }
}

@media (max-width: 400px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}