/* ═══════════════════════════════════════════════════════════════════════════
   ZORZOS PROJECTS — Complete Stylesheet
   A premium technology innovation company
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── CSS Variables ── */
:root {
  --primary: #059669;
  --primary-light: #34d399;
  --primary-dark: #047857;
  --primary-subtle: #ecfdf5;
  --primary-rgb: 5, 150, 105;
  
  --secondary: #0d9488;
  --accent: #6366f1;
  --accent-light: #e0e7ff;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-white: #ffffff;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --border-focus: var(--primary);
  
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.1);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

::selection {
  background: var(--primary);
  color: white;
}

/* ── Utility ── */
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: var(--transition-bounce);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.35);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

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

.btn-outline:hover {
  background: var(--primary-subtle);
  transform: translateY(-2px);
}

.btn-lg { padding: 1rem 2.5rem; font-size: 1rem; }

/* ── Section Layout ── */
section {
  padding: 6rem 0;
  position: relative;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1rem;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1.5px;
  background: var(--primary);
  border-radius: 2px;
}

.section-title {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.section-header {
  margin-bottom: 4rem;
}

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

.section-header.center .section-desc {
  margin: 0 auto;
}

/* ═══════════════════════════════════════════════════════════════════════════
   PRELOADER
   ═══════════════════════════════════════════════════════════════════════════ */
.preloader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.preloader.hidden { opacity: 0; visibility: hidden; }

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

.preloader-logo {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  animation: logoBreath 1.5s ease-in-out infinite;
}

.preloader-logo img { width: 100%; height: 100%; object-fit: contain; }

.preloader-bar {
  width: 180px;
  height: 3px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
  margin: 0 auto 0.75rem;
}

.preloader-progress {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 3px;
  transition: width 0.3s ease;
}

.preloader-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

@keyframes logoBreath {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.08); opacity: 0.7; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════════════════ */
.header {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  max-width: 1100px;
  z-index: 1000;
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1.5rem 0.65rem 2rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.header.scrolled .header-inner {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-lg);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.logo-text span { color: var(--primary); }

.logo-tagline {
  display: none;
  font-size: 0.6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* Navigation */
.nav { display: flex; align-items: center; gap: 0.25rem; }

.nav-link {
  padding: 0.4rem 0.9rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover { color: var(--primary); background: var(--primary-subtle); }

.nav-link.active { color: var(--primary); font-weight: 600; }

/* Mobile Menu */
.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: var(--transition);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) { opacity: 0; }

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ═══════════════════════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 70%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(var(--primary-rgb), 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--border-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-light) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 30%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem 0.4rem 0.4rem;
  background: var(--primary-subtle);
  border: 1px solid rgba(var(--primary-rgb), 0.15);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 2rem;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(var(--primary-rgb), 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(var(--primary-rgb), 0); }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.08;
  margin-bottom: 1.5rem;
  letter-spacing: -0.04em;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 480px;
}

.hero-ctas { display: flex; gap: 1rem; }

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Hero Illustration */
.hero-illustration {
  position: relative;
  width: 460px;
  height: 460px;
}

.hero-shape {
  position: absolute;
  border-radius: var(--radius-xl);
  transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  animation: float 6s ease-in-out infinite;
}

.hero-shape:nth-child(1) {
  width: 180px;
  height: 180px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  top: 10%;
  left: 10%;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  animation-delay: 0s;
}

.hero-shape:nth-child(2) {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--accent) 0%, #818cf8 100%);
  bottom: 20%;
  right: 10%;
  border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  animation-delay: -2s;
}

.hero-shape:nth-child(3) {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
  top: 60%;
  left: 5%;
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  animation-delay: -4s;
}

.hero-shape:nth-child(4) {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
  top: 20%;
  right: 15%;
  border-radius: 40% 60% 60% 40% / 40% 50% 50% 60%;
  animation-delay: -1s;
}

.hero-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(var(--primary-rgb), 0.08) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-12px) rotate(2deg); }
  66% { transform: translateY(6px) rotate(-1deg); }
}

@keyframes pulse-glow {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 1; }
}

/* Mini Stats Bar */
.hero-stats-bar {
  display: flex;
  gap: 2.5rem;
  padding: 1.25rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-top: 3rem;
  box-shadow: var(--shadow-md);
}

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

.hero-stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.hero-stat-value .plus {
  font-size: 1rem;
  color: var(--primary);
}

.hero-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

.hero-stat-divider {
  width: 1px;
  background: var(--border);
}

/* ═══════════════════════════════════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════════════════════════════════ */
.about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

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

.about-highlight {
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
}

.about-highlight-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.about-highlight-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Team Cards */
.team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
}

.team-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--primary);
}

.team-card-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: white;
  margin-bottom: 1rem;
}

.team-card h4 {
  font-size: 1rem;
  margin-bottom: 0.15rem;
}

.team-card .role {
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ═══════════════════════════════════════════════════════════════════════════
   SERVICES
   ═══════════════════════════════════════════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  cursor: default;
}

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

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-subtle);
  border: 1px solid rgba(var(--primary-rgb), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 1.25rem;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--primary);
  color: white;
  border-color: transparent;
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════════════════
   PROJECTS
   ═══════════════════════════════════════════════════════════════════════════ */
.projects {
  background: var(--bg-secondary);
}

.project-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
}

.project-showcase:hover {
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.project-visual {
  min-height: 400px;
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.project-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.project-showcase:hover .project-visual img {
  transform: scale(1.03);
}

.project-visual-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.3rem 0.8rem;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-sm);
}

.project-details {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
}

.project-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.project-details h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.project-details > p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.project-tech span {
  padding: 0.25rem 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.project-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
}

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

.project-stat-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.project-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ═══════════════════════════════════════════════════════════════════════════
   KPI SECTION
   ═══════════════════════════════════════════════════════════════════════════ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.kpi-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.kpi-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
  transform: translateY(-3px);
}

.kpi-ring-wrap {
  width: 120px;
  height: 120px;
  margin: 0 auto 1.25rem;
  position: relative;
}

.kpi-ring-wrap svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.kpi-ring-bg {
  fill: none;
  stroke: var(--bg-tertiary);
  stroke-width: 6;
}

.kpi-ring-progress {
  fill: none;
  stroke: var(--primary);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 345.58;
  stroke-dashoffset: 345.58;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.kpi-ring-value {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.kpi-ring-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.kpi-ring-unit {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.kpi-card h4 {
  text-align: center;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.kpi-card p {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.kpi-target-badge {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--primary-subtle);
  border: 1px solid rgba(var(--primary-rgb), 0.1);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
}

.kpi-target-label {
  color: var(--text-muted);
  font-weight: 500;
}

.kpi-target-value {
  color: var(--text-primary);
  font-weight: 700;
}

.kpi-target-check {
  color: var(--primary);
  font-size: 0.7rem;
}

/* KPI Dissemination */
.kpi-dissemination {
  padding: 2.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.kpi-dissemination h3 {
  font-size: 1.3rem;
  text-align: center;
  margin-bottom: 2rem;
}

.kpi-diss-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.kpi-diss-item {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.kpi-diss-item .icon {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.kpi-diss-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.kpi-diss-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.kpi-diss-bar {
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.kpi-diss-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  transition: width 1.5s ease;
}

/* ═══════════════════════════════════════════════════════════════════════════
   BLOG
   ═══════════════════════════════════════════════════════════════════════════ */
.blog {
  background: var(--bg-secondary);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

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

.blog-card-image {
  position: relative;
  height: 180px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.blog-card:hover .blog-card-image img {
  transform: scale(1.05);
}

.blog-card-cat {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.25rem 0.7rem;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-card-content {
  padding: 1.5rem;
}

.blog-card-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.blog-card-content h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-excerpt {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 1rem;
}

.blog-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
}

.blog-card-read {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.blog-card-btn {
  background: none;
  border: none;
  color: var(--primary);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  transition: var(--transition);
}

.blog-card-btn:hover { gap: 0.5rem; }

/* ═══════════════════════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════════════════════ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-light);
}

.contact-item:last-child { border-bottom: none; padding-bottom: 0; }
.contact-item:first-child { padding-top: 0; }

.contact-icon {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: var(--radius-md);
  background: var(--primary-subtle);
  border: 1px solid rgba(var(--primary-rgb), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
}

.contact-item h4 {
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.contact-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.contact-social {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.contact-social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: var(--transition);
}

.contact-social a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-2px);
}

/* Form */
.form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.form-status {
  display: none;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
}

.form-status.success {
  display: block;
  background: var(--primary-subtle);
  border: 1px solid rgba(var(--primary-rgb), 0.15);
  color: var(--primary);
}

.form-status.error {
  display: block;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #dc2626;
}

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

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

.form-group { position: relative; }

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
  background: white;
}

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

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

/* ═══════════════════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */
.footer {
  padding: 4rem 0 2rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: 1rem;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-weight: 600;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.35rem 0;
  transition: var(--transition);
}

.footer-col a:hover { color: var(--primary); }

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: var(--transition);
  cursor: pointer;
}

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

/* ═══════════════════════════════════════════════════════════════════════════
   MODAL
   ═══════════════════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  z-index: 5000;
  display: none;
  opacity: 0;
  overflow-y: scroll; /* Force custom scrolling viewport */
  -webkit-overflow-scrolling: touch;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  display: block;
  opacity: 1;
}

.modal-nav {
  position: sticky;
  top: 0;
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
  z-index: 10;
}

.modal-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-nav-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.modal-nav-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--primary-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.modal-nav-title h3 {
  font-size: 1.1rem;
}

.modal-nav-title span {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: 1.2rem;
}

.modal-close:hover {
  background: #fef2f2;
  border-color: #fecaca;
  color: #dc2626;
  transform: rotate(90deg);
}

.modal-body { padding: 2rem 0; }

/* Project Modal Tabs */
.modal-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 2rem;
  padding: 0.3rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  width: fit-content;
}

.modal-tab {
  padding: 0.5rem 1.25rem;
  background: none;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.modal-tab.active {
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.modal-tab:hover:not(.active) { color: var(--text-primary); }

.modal-panel { display: none; }
.modal-panel.active { display: block; }

/* Modal Overview */
.modal-overview {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  gap: 2.5rem;
  align-items: start;
}

.modal-overview-main h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.modal-overview-main p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.modal-overview-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 2rem;
}

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

.modal-feature {
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.modal-feature .icon {
  color: var(--primary);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.modal-feature h5 {
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.modal-feature p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Modal Sidebar */
.modal-sidebar-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.modal-sidebar-card h4 {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.modal-detail {
  display: flex;
  justify-content: space-between;
  padding: 0.4rem 0;
  font-size: 0.8rem;
}

.modal-detail .label { color: var(--text-muted); }
.modal-detail .value { color: var(--text-primary); font-weight: 600; }
.modal-detail .value.green { color: var(--primary); }

.modal-tech-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.modal-tech-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.modal-tech-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.4;
}

/* Simulator */
.simulator-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: start;
}

.simulator-map-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.simulator-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.simulator-header h4 { font-size: 1rem; }

.sim-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.sim-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
}

.sim-status-dot.active {
  background: var(--primary);
  animation: pulse-dot 1.5s infinite;
}

.sim-canvas {
  width: 100%;
  height: 360px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: block;
}

.sim-controls {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.sim-telemetry {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.telemetry-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.telemetry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-light);
  font-weight: 700;
  font-size: 0.85rem;
}

.telemetry-node {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 500;
}

.telemetry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.telemetry-item {
  padding: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  text-align: center;
}

.telemetry-label {
  display: block;
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}

.telemetry-value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.telemetry-chart {
  height: 160px;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
}

/* Timeline Modal */
.timeline-wrap { max-width: 700px; margin: 0 auto; }

.timeline-wrap h3 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.timeline-lead {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

.timeline {
  position: relative;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--border));
}

.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  padding-left: 1.5rem;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: -2.5rem;
  top: 0;
  width: 24px;
  height: 24px;
  background: white;
  border: 2px solid var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: var(--primary);
  z-index: 1;
}

.timeline-item.done .timeline-marker {
  background: var(--primary);
  color: white;
}

.timeline-item.current .timeline-marker {
  border-color: var(--accent);
  color: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 0.35rem;
  display: block;
}

.timeline-content h4 { font-size: 1rem; margin-bottom: 0.35rem; }
.timeline-content p { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.75rem; }

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.timeline-tag {
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.timeline-tag.done { background: var(--primary-subtle); color: var(--primary); }
.timeline-tag.active { background: #fef3c7; color: #d97706; }
.timeline-tag.pending { background: var(--bg-tertiary); color: var(--text-muted); }

.timeline-milestone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--primary-subtle);
  border: 1px solid rgba(var(--primary-rgb), 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
}

/* KPI Dashboard Modal */
.kpi-dash-wrap { max-width: 900px; margin: 0 auto; }

.kpi-dash-wrap h3 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.kpi-dash-wrap > p {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.kpi-charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.kpi-chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.kpi-chart-card h4 { font-size: 0.9rem; margin-bottom: 1rem; }
.kpi-chart-card canvas { width: 100% !important; height: 220px !important; }

.kpi-table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  overflow-x: auto;
}

.kpi-table-card h4 { font-size: 0.9rem; margin-bottom: 1rem; }

.kpi-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.kpi-table th {
  text-align: left;
  padding: 0.6rem 0.75rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
}

.status-badge {
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-badge.success { background: var(--primary-subtle); color: var(--primary); }
.status-badge.progress { background: #fef3c7; color: #d97706; }

/* Blog Modal */
.blog-article {
  max-width: 720px;
  margin: 0 auto;
}

.blog-article-header {
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1.5rem;
}

.blog-article-header .cat {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--primary-subtle);
  border: 1px solid rgba(5, 150, 105, 0.1);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.blog-article-header h1 {
  font-size: 1.8rem;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.blog-article-header .meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.blog-article-hero {
  width: 100%;
  height: 280px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
}

.blog-article-hero img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.blog-article-body {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.blog-article-body h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-primary);
}

.blog-article-body p { margin-bottom: 1.25rem; }

.blog-article-body ul,
.blog-article-body ol {
  margin-bottom: 1.25rem;
  padding-left: 1.25rem;
}

.blog-article-body li { margin-bottom: 0.35rem; }

.blog-article-body blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  background: var(--primary-subtle);
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.blog-article-body pre {
  margin: 1.5rem 0;
  padding: 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
}

.blog-article-body code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--bg-tertiary);
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
}

.blog-article-body pre code {
  background: none;
  padding: 0;
}

/* ═══════════════════════════════════════════════════════════════════════════
   MODAL - Architecture
   ═══════════════════════════════════════════════════════════════════════════ */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.diagram-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.diagram-tab {
  padding: 0.4rem 0.9rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.diagram-tab.active {
  background: var(--primary-subtle);
  border-color: rgba(var(--primary-rgb), 0.2);
  color: var(--primary);
}

.diagram-view {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem;
}

.diagram-view img {
  width: 100%;
  border-radius: var(--radius-sm);
}

.diagram-caption {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  font-style: italic;
}

.arch-details h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.arch-details > p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.arch-section { margin-bottom: 1.5rem; }

.arch-section h4 {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.arch-section p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.flow-node {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.flow-node i { color: var(--primary); }

.flow-arrow { color: var(--text-muted); font-size: 0.7rem; }

/* ═══════════════════════════════════════════════════════════════════════════
   NEW CARD GRID & MODAL IMPROVEMENTS
   ═══════════════════════════════════════════════════════════════════════════ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.project-card-image {
  height: 200px;
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.project-card:hover .project-card-image img {
  transform: scale(1.03);
}

.project-card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.3rem 0.8rem;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-sm);
}

.project-card-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-card-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.project-card-content h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  line-height: 1.35;
  color: var(--text-primary);
}

.project-card-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-card-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-card-tech span {
  padding: 0.25rem 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.project-card-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

.project-card-stat {
  text-align: center;
}

.project-card-stat-value {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.project-card-stat-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Modal Containment Box with Opaque Background */
.modal-container {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  max-width: 1050px;
  width: 92%;
  margin: 4rem auto;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
  animation: modalSlide 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#blogModal .modal-container {
  max-width: 800px;
}

@keyframes modalSlide {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Modal Overview Detail Flow */
.zoom-image-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
  transition: var(--transition);
}

.zoom-image-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.system-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
  margin-bottom: 2rem;
}

.system-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  transition: var(--transition);
}

.system-step:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.system-step .step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.system-step .step-info h5 {
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.system-step .step-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.5;
}

/* Modal KPI Layout */
.modal-kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

/* ═══════════════════════════════════════════════════════════════════════════
   REVEAL ANIMATIONS
   ═══════════════════════════════════════════════════════════════════════════ */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-reveal].shown {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual { display: none; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .modal-kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .project-showcase { grid-template-columns: 1fr; }
  .project-visual { min-height: 250px; }
}

@media (max-width: 768px) {
  section { padding: 4rem 0; }
  .section-title { font-size: 2rem; }
  .hero-title { font-size: 2.5rem; }
  
  .nav { display: none; }
  .nav.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: white; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 0.5rem; margin-top: 0.5rem; box-shadow: var(--shadow-lg); }
  .menu-toggle { display: flex; }
  .header-actions .btn { display: none; }
  
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .services-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .modal-kpi-grid { grid-template-columns: 1fr; }
  .kpi-diss-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  
  .modal-tabs { overflow-x: auto; width: 100%; border-radius: var(--radius-md); }
  .modal-overview { grid-template-columns: 1fr; }
  .simulator-grid { grid-template-columns: 1fr; }
  .arch-grid { grid-template-columns: 1fr; }
  .kpi-charts-row { grid-template-columns: 1fr; }
  .hero-stats-bar { flex-wrap: wrap; gap: 1rem; }
  .hero-stat-divider { display: none; }
  .modal-overview-features { grid-template-columns: 1fr; }
  
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .hero-title { font-size: 2rem; }
  .section-title { font-size: 1.6rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .about-highlights { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .project-stats { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; padding: 0.75rem; }
  .project-stat-value { font-size: 1rem; }
}

/* Diagrams Gallery in Modal */
.diagrams-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 1.5rem;
}

.diagram-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.diagram-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.diagram-card-img {
  width: 100%;
  height: 220px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  padding: 1rem;
}

.diagram-card-img img {
  max-width: 100%;
  max-height: 85%;
  object-fit: contain;
  transition: var(--transition);
}

.diagram-card:hover .diagram-card-img img {
  transform: scale(1.03);
}

.diagram-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.diagram-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .diagrams-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}