/* ==========================================================================
   SIVIA SEMICONDUCTOR - PURE WHITE THEME DESIGN SYSTEM
   Intelligent Hardware. Reliable Systems.
   ========================================================================== */

:root {
  /* White / Light Theme Palette */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: #0284c7;
  --border-glow: rgba(2, 132, 199, 0.25);
  
  --text-primary: #0b2545;       /* Sivia Deep Navy */
  --text-secondary: #334155;     /* Slate 700 */
  --text-muted: #64748b;         /* Slate 500 */
  --text-accent: #0284c7;        /* Tech Blue Accent */
  
  /* Brand Accents */
  --sivia-navy: #0b2545;
  --sivia-cyan: #00d4ff;
  --sivia-blue: #0284c7;
  --sivia-blue-dark: #0369a1;
  --sivia-light-blue: #e0f2fe;
  
  /* Status Colors */
  --status-nominal: #10b981;
  --status-nominal-bg: #ecfdf5;
  
  /* Typography */
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(11, 37, 69, 0.05);
  --shadow-card: 0 4px 20px -2px rgba(11, 37, 69, 0.06);
  --shadow-hover: 0 14px 34px -4px rgba(11, 37, 69, 0.1);
  --shadow-header: 0 2px 10px rgba(11, 37, 69, 0.04);
  
  /* Layout Transitions */
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --transition: all 0.24s var(--ease-smooth);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --max-width: 1200px;
}

/* Base Resets */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

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

a:hover {
  color: var(--sivia-blue-dark);
}

/* Section Header Structure */
.section {
  padding: 5.5rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-accent);
  background: var(--sivia-light-blue);
  border: 1px solid rgba(2, 132, 199, 0.2);
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.85rem;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.08rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--sivia-navy) 20%, var(--sivia-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.45rem;
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--sivia-navy);
  color: #ffffff;
  border-color: var(--sivia-navy);
  box-shadow: 0 4px 12px rgba(11, 37, 69, 0.15);
}

.btn-primary:hover {
  background-color: var(--sivia-blue);
  border-color: var(--sivia-blue);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.25);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-primary);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--bg-secondary);
  border-color: var(--sivia-blue);
  color: var(--sivia-blue);
  transform: translateY(-2px);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   TOP NAVIGATION
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-header);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.4rem 0;
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--sivia-navy);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--sivia-blue);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.45rem;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  padding: 5rem 0 4.5rem 0;
  background: radial-gradient(circle at 50% 0%, rgba(2, 132, 199, 0.05), transparent 60%), #ffffff;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-content {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge-container {
  margin-bottom: 1.25rem;
}

.incubation-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--sivia-navy);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-full);
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  background-color: var(--sivia-blue);
  border-radius: 50%;
  box-shadow: 0 0 0 rgba(2, 132, 199, 0.4);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(2, 132, 199, 0.45); }
  70% { box-shadow: 0 0 0 8px rgba(2, 132, 199, 0); }
  100% { box-shadow: 0 0 0 0 rgba(2, 132, 199, 0); }
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 1.35rem;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.12rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.75rem;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}

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

.stat-value {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--sivia-navy);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Hero Side Card */
.hero-side-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-card);
  position: relative;
}

.card-inner-feature .feature-tag-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-accent);
  background: var(--sivia-light-blue);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.side-card-title {
  font-size: 1.45rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.side-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.feature-checklist {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.check-item {
  display: flex;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.check-bullet {
  color: var(--sivia-blue);
  font-size: 1.3rem;
  line-height: 1;
}

.domain-badge-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
}

.domain-badge-box .label {
  color: var(--text-muted);
  font-weight: 500;
}

.domain-badge-box .domain-text {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--sivia-navy);
}

/* ==========================================================================
   ABOUT US SECTION
   ========================================================================== */
.about-section {
  background-color: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: start;
}

.about-narrative-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
}

.card-heading {
  font-size: 1.55rem;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.about-narrative-card p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pillar-card {
  display: flex;
  gap: 1.25rem;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.pillar-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-card);
}

.pillar-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--sivia-light-blue);
  color: var(--sivia-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pillar-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.pillar-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 0;
}

/* ==========================================================================
   MISSION & VISION SECTION
   ========================================================================== */
.mission-section {
  background-color: #ffffff;
}

.mission-vision-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.mv-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.75rem 2.25rem;
  box-shadow: var(--shadow-card);
  position: relative;
  transition: var(--transition);
}

.mv-card.highlight {
  border-top: 4px solid var(--sivia-blue);
}

.mv-card:not(.highlight) {
  border-top: 4px solid var(--sivia-navy);
}

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

.mv-card-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sivia-blue);
  margin-bottom: 0.85rem;
  letter-spacing: 0.05em;
}

.mv-title {
  font-size: 1.65rem;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.mv-quote {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 1.75rem;
  border-left: 3px solid var(--sivia-light-blue);
  padding-left: 1rem;
}

.mv-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mv-list li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mv-list li::before {
  content: '✓';
  color: var(--sivia-blue);
  font-weight: 700;
}

/* ==========================================================================
   RESEARCH & ARCHITECTURAL FOCUS
   ========================================================================== */
.focus-section {
  background-color: var(--bg-secondary);
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.focus-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

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

.focus-number {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: rgba(2, 132, 199, 0.2);
  line-height: 1;
  margin-bottom: 1rem;
}

.focus-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  line-height: 1.35;
}

.focus-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.focus-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.focus-tags .tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   INCUBATION & ECOSYSTEM
   ========================================================================== */
.incubation-section {
  background-color: #ffffff;
}

.incubation-box {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 3rem;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3rem;
}

.incubation-title {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.incubation-content p {
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.disclaimer-note {
  font-size: 0.88rem !important;
  color: var(--text-muted) !important;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--sivia-blue);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  margin-top: 1.5rem;
}

/* Snapshot Card */
.snapshot-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.85rem;
  box-shadow: var(--shadow-card);
}

.snapshot-header {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.snapshot-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 0;
  border-bottom: 1px dashed var(--border-subtle);
  font-size: 0.9rem;
}

.snapshot-row:last-of-type {
  border-bottom: none;
}

.snapshot-row .k {
  color: var(--text-muted);
  font-weight: 500;
}

.snapshot-row .v {
  color: var(--text-primary);
  font-weight: 600;
  text-align: right;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-section {
  background-color: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3rem;
}

.contact-info-card,
.contact-form-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-card);
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--sivia-light-blue);
  color: var(--sivia-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-title {
  display: block;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.contact-val {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0;
}

/* Form */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-main);
  font-size: 0.92rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  background: #ffffff;
  box-shadow: 0 0 0 3px var(--border-glow);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.form-status-msg {
  display: none;
  margin-top: 1rem;
  padding: 0.85rem;
  background-color: var(--status-nominal-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--status-nominal);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-align: center;
}

.form-status-msg.active {
  display: block;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background-color: #ffffff;
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-logo {
  height: 34px;
  width: auto;
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.92rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--sivia-blue);
}

.footer-bottom {
  padding-top: 2rem;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.domain-info strong {
  color: var(--text-primary);
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLETS & MOBILE)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-content,
  .about-grid,
  .incubation-box,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .mission-vision-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.65rem;
  }

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

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-card);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .section {
    padding: 3.5rem 0;
  }

  .hero-title {
    font-size: 2.2rem;
  }

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

  .form-group.full-width {
    grid-column: span 1;
  }

  .incubation-box {
    padding: 1.75rem;
  }
}