/* ===== CSS Custom Properties ===== */
:root {
  --color-bg: #000;
  --color-surface: #000;
  --color-text-primary: #fff;
  --color-text-secondary: #ababab;
  --color-border: #383838;
  --color-accent: #fff;

  --font-body: 'Schibsted Grotesk', sans-serif;
  --font-weight-regular: 400;
  --font-weight-semibold: 600;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 40px;
  --spacing-2xl: 60px;
  --spacing-3xl: 80px;

  --max-width: 1440px;
  --content-max-width: 800px;

  --radius-sm: 4px;
  --radius-md: 8px;

  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: var(--font-weight-regular);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
}

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

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

ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ===== Accessibility ===== */
.skip-link {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-text-primary);
  color: var(--color-bg);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.skip-link:focus {
  opacity: 1;
  pointer-events: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== Layout ===== */
.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  padding-bottom: 60px;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ===== Header ===== */
.site-header {
  margin-bottom: var(--spacing-xl);
}

.header-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.profile-name {
  font-size: 22px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.48px;
  line-height: 1.3;
  margin: 0;
}

.profile-tagline {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.4;
  margin: 0;
}

.profile-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin-top: var(--spacing-sm);
}

/* ===== Divider Row ===== */
.divider-row {
  display: flex;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.divider-segment {
  height: 1px;
  background-color: var(--color-border);
}

.divider-segment:first-child {
  width: 280px;
  flex-shrink: 0;
}

.divider-segment:last-child {
  flex: 1;
}

/* ===== Two-column Layout ===== */
.columns {
  display: flex;
  gap: var(--spacing-xl);
  flex: 1;
}

/* ===== Sidebar ===== */
.sidebar {
  width: 280px;
  flex-shrink: 0;
  padding-top: var(--spacing-lg);
  position: sticky;
  top: var(--spacing-xl);
  align-self: flex-start;
}

.profile-role {
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  line-height: 1.4;
  margin: 0 0 var(--spacing-lg) 0;
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.sidebar-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  padding: var(--spacing-sm) 0;
  transition: opacity var(--transition-fast);
}

.sidebar-link:hover {
  opacity: 0.7;
}

.sidebar-link:focus-visible {
  outline: 2px solid var(--color-text-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* ===== Page Navigation (on divider row) ===== */
.divider-segment--nav {
  display: flex;
  align-items: center;
  position: relative;
}

.page-nav {
  display: flex;
  gap: var(--spacing-md);
  position: absolute;
  bottom: var(--spacing-sm);
}

.page-nav-link {
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.page-nav-link:hover {
  color: var(--color-text-primary);
}

.page-nav-link--active {
  color: var(--color-text-primary);
}

.page-nav-link:focus-visible {
  outline: 2px solid var(--color-text-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.page-nav-link--disabled {
  opacity: 0.35;
  pointer-events: none;
  cursor: default;
}

/* ===== Main Content ===== */
.main-content {
  flex: 1;
  min-width: 0;
  padding-top: var(--spacing-lg);
  display: flex;
  flex-direction: column;
}

/* ===== Sections ===== */
.section-label {
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.065px;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  margin-bottom: var(--spacing-xl);
}

.about,
.work {
  margin-bottom: var(--spacing-xl);
}

.work {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.education {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  margin-bottom: var(--spacing-xl);
}

.education .logos-grid {
  justify-content: flex-start;
  gap: var(--spacing-xl);
}

.education .logo-item {
  width: auto;
  height: 48px;
}

.logo-item--iscte-size {
  height: 26px !important;
}

.logo-item--iscte-size img {
  max-height: 26px !important;
}

/* ===== About ===== */
.about-content {
  max-width: var(--content-max-width);
}

.about-content p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.24px;
}

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

/* ===== Work / Logos ===== */
.logos-grid {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.logo-item {
  width: 120px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-item img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.85;
  transition: filter var(--transition-normal), opacity var(--transition-normal);
}

.logo-item img:hover {
  filter: none;
  opacity: 1;
}

.logo-item--sm {
  width: 80px;
  height: 40px;
}

.logo-item--sm img {
  max-width: 80px;
  max-height: 40px;
}

.logo-item--aws {
  position: relative;
  width: 80px !important;
  height: 40px !important;
}

.logo-item--aws img {
  max-width: 80px;
  max-height: 40px;
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.logo-item--aws img:hover {
  filter: none;
  opacity: 1;
}

.logo-item--wide {
  width: 112px !important;
  height: 48px !important;
}

.logo-item--wide img {
  max-width: 112px;
  max-height: 48px;
  object-fit: contain;
}

.logo-item--vw {
  position: relative;
}

.logo-item--vw .logo-default,
.logo-item--vw .logo-hover {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-item--vw .logo-default {
  filter: brightness(0) invert(1);
  opacity: 0.85;
  transition: opacity var(--transition-normal);
}

.logo-item--vw .logo-hover {
  position: absolute;
  inset: 0;
  opacity: 0;
  filter: none;
  transition: opacity var(--transition-normal);
}

.logo-item--vw:hover .logo-default {
  opacity: 0;
}

.logo-item--vw:hover .logo-hover {
  opacity: 1;
}

.logo-item--no-filter img {
  filter: none;
  border-radius: var(--radius-md);
}

.logo-item--square {
  width: 56px !important;
  height: 56px !important;
}

.logo-item--square img {
  max-width: 56px;
  max-height: 56px;
}

.logo-item--habbertec {
  width: 48px !important;
  height: 56px !important;
}

.logo-item--credibom {
  width: 100px !important;
  height: 52px !important;
}

.logo-item--credibom img {
  max-width: 100px;
  max-height: 52px;
}

.logo-item--habbertec img {
  max-width: 48px;
  max-height: 56px;
}

.logo-item--vfablab {
  width: 56px !important;
  height: 56px !important;
}

.logo-item--vfablab img {
  max-width: 56px;
  max-height: 56px;
}

.logo-item--no-hover img {
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.logo-item--no-hover img:hover {
  filter: brightness(0) invert(1);
  opacity: 0.85;
}

.logo-item--no-hover.logo-item--no-filter img {
  filter: none;
  opacity: 0.85;
}

.logo-item--no-hover.logo-item--no-filter img:hover {
  filter: none;
  opacity: 0.85;
}

.logo-item--ocean {
  position: relative;
}

.logo-item--ocean .logo-default,
.logo-item--ocean .logo-hover {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-item--ocean .logo-default {
  filter: brightness(0) invert(1);
  opacity: 0.85;
  transition: opacity var(--transition-normal);
}

.logo-item--ocean .logo-hover {
  position: absolute;
  inset: 0;
  opacity: 0;
  filter: none;
  transition: opacity var(--transition-normal);
}

.logo-item--ocean:hover .logo-default {
  opacity: 0;
}

.logo-item--ocean:hover .logo-hover {
  opacity: 1;
}

.logo-item--iscte {
  position: relative;
}

.logo-item--iscte .logo-default,
.logo-item--iscte .logo-hover {
  width: 100%;
  height: 100%;
  max-height: 26px;
  object-fit: contain;
}

.logo-item--iscte .logo-default {
  filter: brightness(0) invert(1);
  opacity: 0.85;
  transition: opacity var(--transition-normal);
}

.logo-item--iscte .logo-hover {
  position: absolute;
  inset: 0;
  opacity: 0;
  filter: none;
  transition: opacity var(--transition-normal);
}

.logo-item--iscte:hover .logo-default {
  opacity: 0;
}

.logo-item--iscte:hover .logo-hover {
  opacity: 1;
}

.logo-item--ehtl {
  position: relative;
  height: 80px !important;
}

.logo-item--ehtl .logo-default,
.logo-item--ehtl .logo-hover {
  width: 100%;
  height: 100%;
  max-height: 80px;
  object-fit: contain;
}

.logo-item--ehtl .logo-default {
  filter: brightness(0) invert(1);
  opacity: 0.85;
  transition: opacity var(--transition-normal);
}

.logo-item--ehtl .logo-hover {
  position: absolute;
  inset: 0;
  opacity: 0;
  filter: none;
  transition: opacity var(--transition-normal);
}

.logo-item--ehtl:hover .logo-default {
  opacity: 0;
}

.logo-item--ehtl:hover .logo-hover {
  opacity: 1;
}

/* ===== Projects & Reading ===== */
.projects,
.reading {
  margin-bottom: var(--spacing-xl);
}

.section-intro {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--spacing-lg);
}

.card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.card {
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

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

.card-title {
  font-size: 15px;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-xs);
}

.card-description {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
}

.card-link {
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  transition: opacity var(--transition-fast);
}

.card-link:hover {
  opacity: 0.7;
}

.card-link:focus-visible {
  outline: 2px solid var(--color-text-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ===== Footer ===== */
.site-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-width);
  background-color: var(--color-bg);
}

.site-footer p {
  font-size: 12px;
  color: var(--color-text-secondary);
  letter-spacing: -0.06px;
  text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 767px) {
  .columns {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    position: relative;
    top: 0;
    padding-top: 0;
    padding-bottom: 0;
    border-bottom: none;
    margin-bottom: 0;
  }

  .sidebar-links {
    margin-bottom: -4px;
  }

  .main-content {
    padding-top: 0;
  }

  .divider-row {
    flex-direction: column;
    gap: 0;
    margin-bottom: var(--spacing-sm);
  }

  .divider-segment:first-child {
    display: none;
  }

  .divider-segment--nav {
    justify-content: flex-start;
    background-color: transparent;
    height: auto;
    margin-top: var(--spacing-sm);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
  }

  .page-nav {
    position: static;
    gap: var(--spacing-sm);
    width: 100%;
    justify-content: center;
  }

  .page-nav-link {
    font-size: 14px;
    padding: 10px 16px;
    border-radius: 100px;
    border: 1px solid var(--color-border);
    transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
  }

  .page-nav-link--active {
    background-color: var(--color-text-primary);
    color: var(--color-bg);
    border-color: var(--color-text-primary);
  }

  .page-nav-link:not(.page-nav-link--active):hover {
    border-color: var(--color-text-secondary);
  }

  .about,
  .projects,
  .reading {
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
  }

  .logos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    row-gap: 32px;
    column-gap: 16px;
    justify-items: center;
    align-items: center;
  }

  .logos-grid .logo-item {
    width: 100% !important;
    height: 40px !important;
    flex-shrink: 0;
  }

  .logos-grid .logo-item img {
    max-height: 40px;
  }

  .education .logos-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .education .logos-grid .logo-item {
    height: 36px !important;
  }

  .education .logos-grid .logo-item img {
    max-height: 36px;
  }

  .education .logos-grid .logo-item--ehtl {
    height: 56px !important;
  }

  .education .logos-grid .logo-item--ehtl img {
    max-height: 56px;
  }

  .site-footer {
    left: 0;
    right: 0;
    transform: none;
    max-width: none;
    margin-left: var(--spacing-md);
    margin-right: var(--spacing-md);
    width: calc(100% - var(--spacing-md) * 2);
  }
}

@media (min-width: 768px) {

  .about-content p {
    font-size: 18px;
  }

  .logo-item {
    width: 140px;
    height: 70px;
  }

  .contact-link {
    font-size: 15px;
  }
}

@media (min-width: 1024px) {
  .about-content p {
    font-size: 18px;
    line-height: 1.5;
  }

  .logo-item {
    width: 160px;
    height: 80px;
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}