/* ==========================================================================
   Agnes Marciniec - Personal Website
   Strategic People & Culture Leader
   ========================================================================== */

/* CSS Custom Properties */
:root {
  /* Dark theme (default) */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #161616;
  --text-primary: #fafafa;
  --text-secondary: rgba(250, 250, 250, 0.7);
  --text-tertiary: rgba(250, 250, 250, 0.4);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(255, 255, 255, 0.15);
  --hover-bg: rgba(255, 255, 255, 0.05);

  /* Aurora colors */
  --aurora-1: #00d4ff;
  --aurora-2: #7c3aed;
  --aurora-3: #06b6d4;
  --aurora-4: #8b5cf6;

  /* Accent */
  --accent: #00d4ff;
  --accent-hover: #00b8e6;
  --accent-subtle: rgba(0, 212, 255, 0.15);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;
  --space-3xl: 8rem;

  /* Typography */
  --font-sans: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Aurora visibility */
  --aurora-opacity: 1;

  /* Layout */
  --content-max-width: 1100px;
  --content-narrow: 720px;
}

/* Light theme */
[data-theme="light"] {
  --bg-primary: #fafafa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f5f5f5;
  --text-primary: #0a0a0a;
  --text-secondary: rgba(10, 10, 10, 0.7);
  --text-tertiary: rgba(10, 10, 10, 0.4);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(0, 0, 0, 0.15);
  --hover-bg: rgba(0, 0, 0, 0.03);
  --accent: #0891b2;
  --accent-hover: #0e7490;
  --accent-subtle: rgba(8, 145, 178, 0.1);
  --aurora-opacity: 0;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-slow), color var(--transition-slow);
  overflow-x: hidden;
}

/* ==========================================================================
   Aurora Background Effect (Dark Mode)
   ========================================================================== */

.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--aurora-opacity);
  transition: opacity var(--transition-slow);
  overflow: hidden;
}

.aurora::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, transparent 0%, var(--bg-primary) 70%);
  z-index: 1;
}

.aurora__item {
  position: absolute;
  width: 40vmax;
  height: 40vmax;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  will-change: transform;
}

.aurora__item:nth-child(1) {
  background: var(--aurora-1);
  top: -20%;
  left: -10%;
  animation: aurora-drift-1 25s ease-in-out infinite;
}

.aurora__item:nth-child(2) {
  background: var(--aurora-2);
  top: 10%;
  right: -15%;
  animation: aurora-drift-2 30s ease-in-out infinite;
}

.aurora__item:nth-child(3) {
  background: var(--aurora-3);
  bottom: -10%;
  left: 20%;
  animation: aurora-drift-3 35s ease-in-out infinite;
}

.aurora__item:nth-child(4) {
  background: var(--aurora-4);
  bottom: 20%;
  right: 10%;
  animation: aurora-drift-4 28s ease-in-out infinite;
}

@keyframes aurora-drift-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(10vw, 15vh) scale(1.1); }
  50% { transform: translate(5vw, 25vh) scale(0.9); }
  75% { transform: translate(-5vw, 10vh) scale(1.05); }
}

@keyframes aurora-drift-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-15vw, 10vh) scale(1.15); }
  66% { transform: translate(-10vw, -5vh) scale(0.95); }
}

@keyframes aurora-drift-3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  20% { transform: translate(10vw, -10vh) scale(1.1); }
  60% { transform: translate(15vw, -20vh) scale(0.9); }
  80% { transform: translate(5vw, -5vh) scale(1.05); }
}

@keyframes aurora-drift-4 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40% { transform: translate(-10vw, -15vh) scale(1.2); }
  70% { transform: translate(-5vw, 5vh) scale(0.85); }
}

/* ==========================================================================
   Theme Toggle
   ========================================================================== */

.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: scale(1.05);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

[data-theme="dark"] .icon-sun,
[data-theme="light"] .icon-moon {
  display: none;
}

[data-theme="dark"] .icon-moon,
[data-theme="light"] .icon-sun {
  display: block;
}

.icon-sun { display: none; }
.icon-moon { display: block; }

/* ==========================================================================
   Skip Link
   ========================================================================== */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  background: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  border-radius: 6px;
  z-index: 1000;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: var(--space-md);
}

/* ==========================================================================
   Site Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: var(--space-md) var(--space-md);
  background: var(--bg-primary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.nav__logo {
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.nav__logo:hover {
  color: var(--accent);
}

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__links {
  display: flex;
  gap: var(--space-xs);
  list-style: none;
}

.nav__link {
  padding: 0.5rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all var(--transition-base);
}

.nav__link:hover {
  color: var(--text-primary);
  background: var(--hover-bg);
}

.nav__link--active {
  color: var(--text-primary);
  background: var(--accent-subtle);
}

.nav__link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav__link-short {
  display: none;
}

@media (max-width: 530px) {
  .nav__link-full {
    display: none;
  }
  .nav__link-short {
    display: inline;
  }
}

/* ==========================================================================
   Page Header
   ========================================================================== */

.page-header {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) var(--space-md);
  text-align: center;
}

.page-header__container {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.page-header__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
  animation: fade-up 0.8s ease-out;
}

.page-header__subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  animation: fade-up 0.8s ease-out 0.1s both;
}

/* ==========================================================================
   Hero Section (Homepage)
   ========================================================================== */

.hero-section {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) var(--space-md);
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-section__container {
  max-width: var(--content-narrow);
  text-align: center;
}

.hero-section__photo-wrapper {
  margin-bottom: var(--space-lg);
  animation: fade-up 0.8s ease-out 0.1s both;
}

.hero-section__photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border-color);
  transition: border-color var(--transition-base), transform var(--transition-base);
  filter: grayscale(15%);
}

.hero-section__photo:hover {
  border-color: var(--accent);
  transform: scale(1.02);
  filter: grayscale(0%);
}

.hero-section__title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
  animation: fade-up 0.8s ease-out 0.2s both;
}

.hero-section__tagline {
  font-size: clamp(1.0625rem, 2.5vw, 1.25rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.5;
  animation: fade-up 0.8s ease-out 0.3s both;
}

.hero-section__intro {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto var(--space-lg);
  animation: fade-up 0.8s ease-out 0.4s both;
}

.hero-section__intro strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-section__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  animation: fade-up 0.8s ease-out 0.5s both;
}

.hero-section__credentials {
  margin-top: var(--space-lg);
  animation: fade-up 0.8s ease-out 0.6s both;
}

.hero-section__credentials-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

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

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

.btn--secondary:hover {
  background: var(--hover-bg);
  border-color: var(--border-color-hover);
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) var(--space-md);
}

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


.section__container {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.section__container--centered {
  text-align: center;
  max-width: var(--content-narrow);
}

.section__title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  text-align: center;
}

.section__intro {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  max-width: var(--content-narrow);
  margin-left: auto;
  margin-right: auto;
}

.section__cta {
  margin-top: var(--space-xl);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

/* ==========================================================================
   Summary Content
   ========================================================================== */

.summary-content {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.summary-content p {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.summary-content p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Pillars (Value Proposition)
   ========================================================================== */

.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.pillar {
  padding: var(--space-lg);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  transition: border-color var(--transition-base);
}

[data-theme="light"] .pillar {
  background: var(--bg-secondary);
}

.pillar:hover {
  border-color: var(--border-color-hover);
}

.pillar__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.pillar__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.pillar__list {
  list-style: none;
  padding: 0;
}

.pillar__list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.pillar__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.7;
}

/* ==========================================================================
   Impact List (Homepage)
   ========================================================================== */

.impact-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
  list-style: none;
  padding: 0;
}

.impact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: border-color var(--transition-base);
}

[data-theme="light"] .impact-item {
  background: var(--bg-primary);
}

.impact-item:hover {
  border-color: var(--border-color-hover);
}

.impact-item__metric {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  min-width: 80px;
}

.impact-item__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   Certifications
   ========================================================================== */

.certifications {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.cert-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  transition: all var(--transition-base);
  cursor: default;
}

[data-theme="light"] .cert-badge {
  background: var(--bg-secondary);
}

.cert-badge svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
  transition: opacity var(--transition-base);
}

.cert-badge:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--accent-subtle);
}

.cert-badge:hover svg {
  opacity: 1;
}

/* ==========================================================================
   Philosophy Content
   ========================================================================== */

.philosophy-content {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.philosophy-content p {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.philosophy-content p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Known For List (Homepage)
   ========================================================================== */

.known-for-list {
  list-style: none;
  padding: 0;
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.known-for-item {
  position: relative;
  padding-left: 1.5rem;
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.known-for-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.7;
}

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

/* ==========================================================================
   How I Work List (About Page)
   ========================================================================== */

.how-i-work-list {
  list-style: none;
  padding: 0;
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.how-i-work-item {
  position: relative;
  padding-left: 1.5rem;
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.how-i-work-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.7;
}

.how-i-work-item:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Highlight Blocks (Experience Highlights Page)
   ========================================================================== */

.highlight-block {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.highlight-block__title {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.highlight-block__intro {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.highlight-block__list {
  list-style: none;
  padding: 0;
}

.highlight-block__list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

.highlight-block__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.7;
}

.highlight-block__list li:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   About Page Content
   ========================================================================== */

.about-content {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.about-content__photo {
  position: sticky;
  top: var(--space-xl);
}

.about-content__photo img {
  width: 200px;
  height: 200px;
  border-radius: 16px;
  object-fit: cover;
  border: 3px solid var(--border-color);
  filter: grayscale(15%);
  transition: filter var(--transition-base), border-color var(--transition-base);
}

.about-content__photo img:hover {
  filter: grayscale(0%);
  border-color: var(--accent);
}

.about-content__text h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.about-content__text p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-content__photo {
    position: static;
    display: flex;
    justify-content: center;
  }

  .about-content__photo img {
    width: 160px;
    height: 160px;
  }

  .about-content__text {
    text-align: left;
  }
}

/* ==========================================================================
   Values Grid
   ========================================================================== */

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.value-card {
  padding: var(--space-lg);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  transition: border-color var(--transition-base);
}

[data-theme="light"] .value-card {
  background: var(--bg-secondary);
}

.value-card:hover {
  border-color: var(--border-color-hover);
}

.value-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.value-card__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================================================
   Experience Grid
   ========================================================================== */

.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.experience-sector {
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  transition: border-color var(--transition-base);
}

[data-theme="light"] .experience-sector {
  background: var(--bg-primary);
}

.experience-sector:hover {
  border-color: var(--border-color-hover);
}

.experience-sector__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--accent);
}

.experience-sector__desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Impact Stories (Impact Page)
   ========================================================================== */

.impact-story {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.impact-story__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.impact-story__metric {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.impact-story__title {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 600;
  color: var(--text-primary);
}

.impact-story__content {
  display: grid;
  gap: var(--space-lg);
}

.impact-story__section h3 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-xs);
}

.impact-story__section p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.impact-story__section ul {
  list-style: none;
  padding: 0;
}

.impact-story__section ul li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.impact-story__section ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.7;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  position: relative;
  z-index: 1;
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.footer__container {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.footer__content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer__brand {
  text-align: left;
}

.footer__name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.footer__location {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

.footer__nav {
  display: flex;
  gap: var(--space-md);
}

.footer__nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color var(--transition-base);
}

.footer__nav a:hover {
  color: var(--text-primary);
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
}

.footer__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  transition: all var(--transition-base);
}

.footer__link:hover {
  color: var(--text-primary);
  border-color: var(--border-color-hover);
  background: var(--hover-bg);
}

.footer__link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.footer__copy {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

@media (max-width: 640px) {
  .footer__content {
    flex-direction: column;
    text-align: center;
  }

  .footer__brand {
    text-align: center;
  }
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */

@media (max-width: 640px) {
  .hero-section {
    min-height: auto;
    padding: var(--space-xl) var(--space-sm);
  }

  .hero-section__photo {
    width: 140px;
    height: 140px;
  }

  .section {
    padding: var(--space-xl) var(--space-sm);
  }

  .page-header {
    padding: var(--space-lg) var(--space-sm) var(--space-xs);
  }

  .nav {
    gap: var(--space-sm);
  }

  .nav__right {
    gap: var(--space-xs);
  }

  .nav__links {
    gap: 0;
  }

  .nav__link {
    padding: 0.5rem 0.5rem;
    font-size: 0.8125rem;
  }

  .certifications {
    gap: 0.5rem;
  }

  .cert-badge {
    padding: 0.4rem 0.75rem;
    font-size: 0.6875rem;
  }

  .cert-badge svg {
    width: 14px;
    height: 14px;
  }

  .impact-list {
    grid-template-columns: 1fr;
  }

  .impact-item {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .impact-item__metric {
    min-width: auto;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-section__cta {
    flex-direction: column;
  }
}

@media (max-width: 380px) {
  .cert-badge span {
    display: none;
  }

  .cert-badge {
    padding: 0.5rem;
    border-radius: 10px;
  }

  .cert-badge svg {
    width: 18px;
    height: 18px;
  }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .aurora__item {
    animation: none;
  }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .aurora,
  .theme-toggle,
  .site-header {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .hero-section__photo,
  .about-content__photo img {
    filter: grayscale(100%);
  }

  .section--alt {
    background: #f5f5f5;
  }

  .btn {
    border: 1px solid #333;
  }
}