/* ==========================================================================
   BNTT - Embedded Systems Engineering (Hardware & Software)
   Modern, High-Tech Responsive Stylesheet
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-dark: #070a12;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(22, 33, 62, 0.85);
  --bg-surface: #0f172a;
  --border-color: rgba(51, 65, 85, 0.6);
  --border-glow: rgba(0, 240, 255, 0.35);

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --accent-cyan: #00f0ff;
  --accent-blue: #3b82f6;
  --accent-indigo: #6366f1;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;

  --grad-cyan-blue: linear-gradient(135deg, #00f0ff 0%, #3b82f6 100%);
  --grad-glow: radial-gradient(circle at 50% 0%, rgba(0, 240, 255, 0.12) 0%, transparent 65%);
  --grad-card: linear-gradient(180deg, rgba(30, 41, 59, 0.4) 0%, rgba(15, 23, 42, 0.8) 100%);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', "SFMono-Regular", Consolas, monospace;

  /* Layout & Transitions */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(0, 240, 255, 0.2);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  background-image: 
    radial-gradient(circle at 80% 10%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 20% 40%, rgba(0, 240, 255, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 60% 85%, rgba(99, 102, 241, 0.07) 0%, transparent 45%);
}

/* Subtle Circuit Grid Pattern */
.cyber-grid-overlay {
  position: fixed;
  inset: 0;
  background-size: 50px 50px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  pointer-events: none;
  z-index: 0;
}

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

img, svg {
  display: block;
  max-width: 100%;
}

ul {
  list-style: none;
}

/* Utility Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  position: relative;
  z-index: 1;
}

.section {
  padding: 6rem 0;
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding: 4rem 0;
  }
}

/* Section Header Styling */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-full);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
}

.section-badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: #fff;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Navigation Bar (Glassmorphic Header)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(7, 10, 18, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(7, 10, 18, 0.95);
  border-bottom-color: rgba(0, 240, 255, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(59, 130, 246, 0.2));
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
  box-shadow: var(--shadow-glow);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1;
  background: var(--grad-cyan-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tagline {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--grad-cyan-blue);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Header Actions: Language Switcher & Contact CTA */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

/* Language Toggle Switcher */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 3px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-btn:hover {
  color: #fff;
}

.lang-btn.active {
  background: var(--grad-cyan-blue);
  color: #090d16;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

/* Action Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-smooth);
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-cyan-blue);
  color: #090d16;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 240, 255, 0.5);
  filter: brightness(1.08);
}

.btn-secondary {
  background: rgba(30, 41, 59, 0.6);
  border-color: var(--border-color);
  color: #fff;
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(51, 65, 85, 0.8);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 240, 255, 0.15);
}

.btn-sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
}

.btn-icon {
  width: 18px;
  height: 18px;
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  color: #fff;
  cursor: pointer;
}

.mobile-toggle svg {
  width: 24px;
  height: 24px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding-top: 10.5rem;
  padding-bottom: 5rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-content {
  max-width: 650px;
}

.hero-title {
  font-size: clamp(2.3rem, 4.5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  color: #fff;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #38bdf8 70%, #00f0ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

/* Hero Quick Stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

.stat-val {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.3;
  margin-top: 0.25rem;
}

/* Hero Visual / Schematic Graphic */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-card {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid rgba(0, 240, 255, 0.25);
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.8), 0 0 30px rgba(0, 240, 255, 0.15);
  backdrop-filter: blur(12px);
  transition: transform var(--transition-smooth);
}

.hero-visual-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 240, 255, 0.5);
}

.hero-schematic-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* Floating Status Badges around Hero visual */
.floating-chip-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #fff;
  z-index: 2;
  backdrop-filter: blur(10px);
  animation: floatAnim 4s ease-in-out infinite alternate;
}

.badge-top-left {
  top: -15px;
  left: -20px;
  border-color: rgba(16, 185, 129, 0.4);
}

.badge-bottom-right {
  bottom: -15px;
  right: -20px;
  border-color: rgba(99, 102, 241, 0.5);
  animation-delay: -2s;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
}

.pulse-dot.blue {
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

@keyframes floatAnim {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.about-text strong {
  color: #fff;
}

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

.feature-box {
  display: flex;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--grad-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.feature-box:hover {
  border-color: var(--accent-cyan);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.feature-box-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
}

.feature-box-content h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.35rem;
}

.feature-box-content p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Services Section (Solutions)
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--grad-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 240, 255, 0.12);
}

.service-card:hover::before {
  opacity: 1;
}

.service-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.service-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
}

.service-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
}

.service-desc {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-bottom: 1.75rem;
  line-height: 1.6;
}

.service-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.92rem;
  color: var(--text-main);
}

.checklist-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--accent-emerald);
  margin-top: 2px;
}

/* ==========================================================================
   Technology Stack Section
   ========================================================================== */
.tech-groups {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.tech-group-title {
  font-size: 1.1rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tech-group-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.tech-badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.tech-tag {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  transition: var(--transition-fast);
}

.tech-tag:hover {
  border-color: var(--accent-cyan);
  background: rgba(30, 41, 59, 0.9);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 240, 255, 0.15);
}

.tech-tag-icon {
  width: 20px;
  height: 20px;
  color: var(--accent-cyan);
}

/* ==========================================================================
   Workflow / Methodology Section
   ========================================================================== */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
  position: relative;
}

.workflow-card {
  background: var(--grad-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  position: relative;
  transition: var(--transition-smooth);
}

.workflow-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-cyan);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.workflow-number {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 900;
  color: rgba(0, 240, 255, 0.25);
  margin-bottom: 0.75rem;
  line-height: 1;
}

.workflow-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
}

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

/* ==========================================================================
   Why Choose Us (Diferenciais) Section
   ========================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.why-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition-fast);
}

.why-card:hover {
  border-color: var(--accent-blue);
  background: rgba(30, 41, 59, 0.7);
  transform: translateY(-3px);
}

.why-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  margin-bottom: 1.25rem;
}

.why-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.why-card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-wrapper {
  background: var(--grad-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 3.5rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.contact-wrapper::before {
  content: "";
  position: absolute;
  top: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.contact-info {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
}

.contact-info-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.contact-channel-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.channel-icon {
  width: 48px;
  height: 48px;
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.channel-content span {
  display: block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.channel-content a,
.channel-content p {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.channel-content a:hover {
  color: var(--accent-cyan);
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-control {
  background: rgba(7, 10, 18, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
  background: rgba(15, 23, 42, 0.9);
}

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

.form-status {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid var(--accent-emerald);
  color: #34d399;
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid #ef4444;
  color: #f87171;
}

/* ==========================================================================
   Footer Section
   ========================================================================== */
.site-footer {
  background: #04070d;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4.5rem 0 2rem;
  position: relative;
  z-index: 1;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-top: 1rem;
  max-width: 360px;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-link:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-subtle);
}

.footer-tech-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

/* ==========================================================================
   Mobile Drawer & Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .workflow-grid,
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .hero-content {
    max-width: 100%;
  }

  .hero-visual {
    order: -1;
    max-width: 500px;
    margin: 0 auto;
  }

  .contact-wrapper {
    padding: 2rem;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(7, 10, 18, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-smooth);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .header-cta-btn {
    display: none;
  }

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

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}