/* ==========================================================================
   lempka.pl - Premium Design System & Stylesheet
   Version: 3.0 (Comprehensive Agency-Grade Redesign & Micro-Animations)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design System Tokens & Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Light Theme Palette (Warm Ivory & Executive Clarity) */
  --color-light-bg: #F7F5EE;
  --color-light-bg-alt: #FFFFFF;
  --color-light-surface: #FFFFFF;
  --color-light-surface-hover: #F3EFF5;
  --color-light-border: #E8E5DD;
  --color-light-border-strong: #D4D0C5;
  --color-light-text: #111111;
  --color-light-text-muted: #555555;
  --color-light-card-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  --color-light-glass: rgba(247, 245, 238, 0.88);

  /* Dark Theme Palette (Charcoal IDE & Deep Ambient Glow) */
  --color-dark-bg: #0F0F12;
  --color-dark-bg-alt: #15151A;
  --color-dark-surface: #1A1A1E;
  --color-dark-surface-hover: #26262B;
  --color-dark-border: #33333A;
  --color-dark-border-strong: #4A4A54;
  --color-dark-text: #FFFFFF;
  --color-dark-text-muted: #D1D1D6;
  --color-dark-card-shadow: 0 14px 40px rgba(0, 0, 0, 0.5);
  --color-dark-glass: rgba(15, 15, 18, 0.88);

  /* Brand Accents & Glows */
  --color-accent-teal: #00B8D4;
  --color-accent-teal-glow: rgba(0, 184, 212, 0.18);
  --color-accent-yellow: #FFD600;
  --color-accent-yellow-glow: rgba(255, 214, 0, 0.2);

  /* Status Dots */
  --color-dot-red: #FF5F56;
  --color-dot-yellow: #FFBD2E;
  --color-dot-green: #27C93F;

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

  /* Geometry & Motion */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 9999px;
  --max-width: 1200px;
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Theme Mappings */
body[data-theme="light"] {
  --bg-main: var(--color-light-bg);
  --bg-alt: var(--color-light-bg-alt);
  --surface-main: var(--color-light-surface);
  --surface-hover: var(--color-light-surface-hover);
  --border-main: var(--color-light-border);
  --border-strong: var(--color-light-border-strong);
  --text-main: var(--color-light-text);
  --text-muted: var(--color-light-text-muted);
  --shadow-main: var(--color-light-card-shadow);
  --glass-nav: var(--color-light-glass);
}

body[data-theme="dark"] {
  --bg-main: var(--color-dark-bg);
  --bg-alt: var(--color-dark-bg-alt);
  --surface-main: var(--color-dark-surface);
  --surface-hover: var(--color-dark-surface-hover);
  --border-main: var(--color-dark-border);
  --border-strong: var(--color-dark-border-strong);
  --text-main: var(--color-dark-text);
  --text-muted: var(--color-dark-text-muted);
  --shadow-main: var(--color-dark-card-shadow);
  --glass-nav: var(--color-dark-glass);
}

/* --------------------------------------------------------------------------
   2. Reset & Core Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --------------------------------------------------------------------------
   3. Container, Sections & Alternating Backgrounds
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.75rem;
}

.section {
  padding: 6.5rem 0;
  position: relative;
}

.section.alt-bg {
  background-color: var(--bg-alt);
}

.section-header {
  margin-bottom: 3.5rem;
  max-width: 780px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-teal);
  margin-bottom: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.section-tag::before {
  content: "//";
  opacity: 0.85;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 1rem;
  text-wrap: balance;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Scroll-Driven Animations */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   4. Navigation & Header
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--glass-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-main);
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: opacity var(--transition-fast);
}

.brand-logo:hover {
  opacity: 0.9;
}

.logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

body[data-theme="light"] .logo-img {
  mix-blend-mode: multiply;
}

body[data-theme="dark"] .logo-img {
  mix-blend-mode: screen;
}

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

.brand-name {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--text-main);
}

.brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent-teal);
  border-radius: 2px;
}

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

.theme-toggle-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius-pill);
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.theme-toggle-btn:hover {
  border-color: var(--color-accent-teal);
  background-color: var(--surface-hover);
  transform: translateY(-1px);
}

.theme-icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Mobile Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.mobile-menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* --------------------------------------------------------------------------
   5. Hero Section (Module 1)
   -------------------------------------------------------------------------- */
.hero-section {
  padding: 5.5rem 0 4.5rem;
  position: relative;
  overflow: hidden;
}

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

.hero-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-pill);
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-main);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-success);
  box-shadow: 0 0 10px var(--color-success);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
  font-size: 3.75rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  text-wrap: balance;
}

.hero-title .highlight-teal {
  color: var(--color-accent-teal);
  position: relative;
  display: inline-block;
}

.hero-subheadline {
  font-size: 1.3rem;
  font-weight: 450;
  line-height: 1.55;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 680px;
}

/* Terminal Mockup Wrapper for Credo */
.terminal-window {
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-main);
  overflow: hidden;
  margin-bottom: 2.25rem;
}

.terminal-header {
  padding: 0.6rem 1rem;
  background-color: var(--border-main);
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border-strong);
}

.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-r { background-color: var(--color-dot-red); }
.dot-y { background-color: var(--color-dot-yellow); }
.dot-g { background-color: var(--color-dot-green); }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
  font-weight: 600;
}

.credo-body {
  padding: 1.5rem 1.75rem;
  border-left: 4px solid var(--color-accent-yellow);
}

.credo-quote {
  font-size: 1.05rem;
  font-weight: 450;
  color: var(--text-main);
  line-height: 1.6;
}

.credo-author {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-style: normal;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent-teal);
  margin-top: 0.75rem;
}

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

/* Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-teal);
  border-color: var(--color-accent-teal);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--color-accent-teal-glow);
}

.btn-secondary {
  background-color: var(--surface-main);
  color: var(--text-main);
  border: 1px solid var(--border-strong);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.btn-outline:hover {
  border-color: var(--color-accent-yellow);
  color: var(--color-accent-yellow);
  transform: translateY(-2px);
}

/* Metric Authority Cards */
.hero-metrics-column {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.metric-card {
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  box-shadow: var(--shadow-main);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.metric-card:hover {
  transform: translateX(4px);
  border-color: var(--color-accent-teal);
}

.metric-number {
  font-family: var(--font-mono);
  font-size: 1.95rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--color-accent-teal);
  flex-shrink: 0;
  white-space: nowrap;
}

.metric-number.yellow {
  color: var(--color-accent-yellow);
}

.metric-info h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text-main);
}

.metric-info p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.45;
  font-weight: 450;
}

/* --------------------------------------------------------------------------
   6. Core Competency Pillars (Module 2)
   -------------------------------------------------------------------------- */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.pillar-card {
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-main);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: transparent;
  transition: background-color var(--transition-fast);
}

.pillar-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent-teal);
}

.pillar-card:nth-child(1):hover::before { background-color: var(--color-accent-teal); }
.pillar-card:nth-child(2):hover::before { background-color: var(--color-accent-yellow); }
.pillar-card:nth-child(3):hover::before { background-color: var(--color-accent-teal); }

.pillar-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-teal);
  margin-bottom: 1.25rem;
}

.pillar-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.pillar-focus-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-main);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.pillar-description {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   7. Case Studies & Leadership Proof (Module 3)
   -------------------------------------------------------------------------- */
.cases-stack {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.case-card {
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-main);
  transition: border-color var(--transition-fast);
}

.case-card:hover {
  border-color: var(--color-accent-teal);
}

.case-header {
  padding: 2rem 2.5rem;
  background-color: var(--surface-main);
  border-bottom: 1px solid var(--border-strong);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.case-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.case-company-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-main);
  border: 1px solid var(--border-strong);
  color: var(--color-accent-teal);
}

.case-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.case-body {
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr 1.1fr;
  gap: 2rem;
}

.case-block-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.case-block-title.impact {
  color: var(--color-accent-teal);
}

.case-block p {
  font-size: 0.975rem;
  color: var(--text-main);
  line-height: 1.6;
}

/* Highlighted Impact Column */
.case-block.impact-box {
  background-color: var(--bg-main);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--color-accent-teal);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
}

/* --------------------------------------------------------------------------
   8. Product & Open Source Showcase (Module 4)
   -------------------------------------------------------------------------- */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.showcase-card {
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-main);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.showcase-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-teal);
}

.showcase-card-inner {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
}

.showcase-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.showcase-title-area h3 {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.showcase-subtitle {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  color: var(--color-accent-teal);
}

.showcase-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--bg-main);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-accent-yellow);
}

.showcase-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.showcase-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-main);
  border: 1px solid var(--border-strong);
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   9. Engineering Philosophy (Module 5)
   -------------------------------------------------------------------------- */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.principle-card {
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.85rem;
  box-shadow: var(--shadow-main);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.principle-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-yellow);
}

.principle-icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.principle-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.principle-body {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   10. Contact & Stealth Inquiry Funnel (Module 6)
   -------------------------------------------------------------------------- */
.contact-section {
  padding-bottom: 6rem;
}

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

.contact-card {
  background-color: var(--surface-main);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-main);
  position: relative;
  overflow: hidden;
}

.contact-card.advisory {
  border-top: 4px solid var(--color-accent-teal);
}

.contact-card.networking {
  border-top: 4px solid var(--color-accent-yellow);
}

.contact-header-tag {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.contact-card-title {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.contact-card-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2.25rem;
}

/* Toast Notification */
.toast-notification {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--surface-main);
  color: var(--text-main);
  border: 1px solid var(--color-accent-teal);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2000;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-notification.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   11. Footer
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border-main);
  padding: 3.5rem 0 2.5rem;
  background-color: var(--bg-main);
  transition: background-color var(--transition-smooth);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-copy {
  font-size: 0.9rem;
  color: var(--text-main);
  font-weight: 600;
}

.footer-sub {
  font-family: var(--font-mono);
  font-size: 0.775rem;
  color: var(--text-muted);
}

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

.footer-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent-teal);
}

/* --------------------------------------------------------------------------
   12. Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .pillars-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .case-body {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .showcase-grid,
  .philosophy-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .nav-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--surface-main);
    border-bottom: 1px solid var(--border-main);
    padding: 1.5rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  }

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

  .hero-title {
    font-size: 2.35rem;
  }

  .hero-subheadline {
    font-size: 1.125rem;
  }

  .section {
    padding: 4rem 0;
  }

  .case-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }
}