/* ==========================================================================
   FINOX EDITORIAL PORTFOLIO - LAYOUT & RESPONSIVE DESIGN SYSTEM
   ========================================================================== */

/* ==========================================================================
   1. NAVIGATION HEADER
   ========================================================================== */

.finox-header {
  width: 100%;
  height: var(--header-height);
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(244, 244, 247, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-wrapper {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 34px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0;
  transition: opacity var(--transition-fast);
}

.nav-link:hover {
  opacity: 0.65;
}

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.header-btn-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding-bottom: 2px;
  border-bottom: 1.5px solid var(--text-primary);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.header-btn-link:hover {
  opacity: 0.7;
  transform: translateX(2px);
}

/* Mobile Hamburger Button */
.mobile-hamburger-btn {
  display: none;
  width: 40px;
  height: 40px;
  padding: 10px 8px;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  cursor: pointer;
  z-index: 1100;
}

.mobile-hamburger-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-hamburger-btn.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.mobile-hamburger-btn.open span:nth-child(2) {
  opacity: 0;
}
.mobile-hamburger-btn.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 850px) {
  .mobile-hamburger-btn {
    display: flex;
  }
  
  .header-btn-link {
    display: none;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: rgba(244, 244, 247, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-medium);
    padding: 2rem 1.5rem;
    flex-direction: column;
    gap: 1.5rem;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-smooth), opacity var(--transition-fast);
    z-index: 999;
  }

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

  .nav-link {
    font-size: 1.15rem;
    font-weight: 700;
    padding: 0.75rem 0;
    text-align: center;
    width: 100%;
    justify-content: center;
  }
}

/* ==========================================================================
   2. HERO SECTION & VERTICAL RAIL (Desktop)
   ========================================================================== */

.hero-wrapper {
  position: relative;
  display: flex;
  min-height: calc(100vh - var(--header-height));
  border-bottom: none;
  background: radial-gradient(ellipse 75% 65% at 75% 35%, rgba(255, 255, 255, 0.75) 0%, rgba(240, 240, 243, 0.4) 60%, transparent 100%);
}

/* Left Vertical Rail */
.left-rail {
  width: var(--rail-width);
  flex-shrink: 0;
  border-right: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 4rem;
  position: relative;
}

.rail-text {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  white-space: nowrap;
  text-transform: uppercase;
}

/* Hero Main Grid */
.hero-main {
  flex-grow: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: stretch;
  position: relative;
}

.hero-left-column {
  padding: 4.5rem 4rem 4.5rem 5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 2;
}

/* Top Stats Group */
.hero-stats-row {
  display: flex;
  gap: 3.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

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

.stat-val {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.stat-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-weight: 500;
}

/* Role & Year Badge */
.hero-role-badge {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.01em;
  margin-top: 0.75rem;
}

/* Giant Title & Tagline */
.hero-title-area {
  margin-top: auto;
  margin-bottom: 1.5rem;
}

.giant-title {
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-left: -0.25rem;
}

.hero-tagline {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 1.75rem;
  line-height: 1.6;
  letter-spacing: -0.015em;
}

.hero-tag-highlight {
  background: var(--text-primary);
  color: #ffffff;
  padding: 0.12em 0.45em;
  border-radius: 6px;
  display: inline-block;
  white-space: nowrap;
  font-weight: 700;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.hero-tag-highlight:hover {
  transform: translateY(-1px);
}

.btn-black-pill {
  background: var(--text-primary);
  color: var(--text-inverse);
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.btn-black-pill:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.btn-outline-pill {
  border: 1.5px solid var(--border-medium);
  color: var(--text-primary);
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.btn-outline-pill:hover {
  background: var(--bg-surface);
  border-color: var(--text-primary);
}

/* Right Hero Portrait Column (Desktop) */
.hero-right-column {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  padding-right: 2rem;
}

.hero-portrait-img {
  width: 100%;
  max-width: 580px;
  height: auto;
  max-height: 88vh;
  object-fit: contain;
  object-position: bottom center;
  filter: grayscale(100%) contrast(108%) brightness(102%);
  mix-blend-mode: multiply;
  mask-image: linear-gradient(to bottom, black 85%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 85%, transparent 100%);
  transition: transform var(--transition-smooth);
}

.hero-right-column:hover .hero-portrait-img {
  transform: scale(1.015);
}

/* ==========================================================================
   MOBILE HERO & RESPONSIVE LAYOUT (1:1 Exact Match with Reference Screenshot)
   ========================================================================== */

@media (max-width: 850px) {
  :root {
    --header-height: 56px;
  }

  .finox-header {
    height: 56px;
    padding: 0 0.5rem;
  }

  .left-rail {
    display: none !important;
  }

  .hero-wrapper {
    min-height: calc(100vh - var(--header-height));
    min-height: calc(100dvh - var(--header-height));
    padding: 2.25rem 1.25rem 0 1.25rem;
    margin: 0;
    border-bottom: none;
    background: none;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    box-sizing: border-box;
    position: relative;
  }

  .hero-main {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    text-align: center;
    width: 100%;
    height: 100%;
    flex-grow: 1;
    margin: 0;
    padding: 0;
  }

  .hero-left-column {
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
  }

  /* 1. Giant Title */
  .hero-title-area {
    margin: 0 0 0.25rem 0;
    width: 100%;
    text-align: center;
  }

  .giant-title {
    font-size: clamp(3.5rem, 16vw, 5rem);
    line-height: 0.9;
    letter-spacing: -0.04em;
    text-align: center;
    margin: 0 auto;
    font-weight: 800;
  }

  .hero-tagline {
    font-size: 1.05rem;
    font-weight: 600;
    text-align: center;
    margin: 0.75rem auto 1.5rem auto;
    max-width: 340px;
    line-height: 1.75;
    color: var(--text-primary);
  }

  /* 2. Stats Group */
  .hero-stats-row {
    margin: 0 auto 1.25rem auto;
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    width: 100%;
    text-align: center;
  }

  .stat-block {
    align-items: center;
    text-align: center;
  }

  .stat-val {
    font-size: 2.5rem;
    line-height: 1;
    font-weight: 800;
    letter-spacing: -0.03em;
  }

  .stat-desc {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-top: 0.35rem;
    max-width: 95px;
    line-height: 1.25;
  }

  /* 3. Role & Year Badge */
  .hero-role-badge {
    display: block;
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 auto 1.5rem auto;
    letter-spacing: 0.03em;
    text-align: center;
  }

  /* 4. Centered Portrait Image - GROUNDED AT BOTTOM OF HERO VIEWPORT */
  .hero-right-column {
    width: 100%;
    max-width: 340px;
    margin-top: auto;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    overflow: visible;
  }

  .hero-portrait-img {
    width: 100%;
    max-width: 290px;
    height: auto;
    max-height: 46vh;
    min-height: 220px;
    object-fit: contain;
    object-position: bottom center;
    margin: 0 auto;
    display: block;
    filter: grayscale(100%) contrast(106%) brightness(102%);
  }
}

/* ==========================================================================
   3. ABOUT ME SECTION (Seamless Editorial Flow)
   ========================================================================== */

.about-editorial-section {
  padding: 6.5rem 0;
  border-bottom: 1px solid var(--border-light);
  position: relative;
}

.about-flow-container {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.about-hero-heading {
  font-size: clamp(2.5rem, 6vw, 3.85rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-bottom: 2rem;
  color: var(--text-primary);
  text-align: center;
}

.about-lead-quote {
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  font-weight: 600;
  line-height: 1.65;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  text-align: center;
  letter-spacing: -0.015em;
  max-width: 820px;
}

.about-lead-sub {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 2.25rem auto;
  text-align: center;
}

.about-actions-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

.about-airlines-block {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-top: 1px solid var(--border-light);
  padding-top: 3.5rem;
}

.about-airlines-label {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 1.5rem;
  text-align: center;
}

.airlines-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
  max-width: 800px;
}

.airline-badge {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  padding: 0.65rem 1.4rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  transition: all var(--transition-fast);
}

.airline-badge:hover {
  background: var(--text-primary);
  color: var(--text-inverse);
  border-color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.airline-dot {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.airline-badge:hover .airline-dot {
  color: var(--text-inverse);
}

@media (max-width: 850px) {
  .about-editorial-section {
    padding: 4.5rem 0;
  }
  .about-hero-heading {
    font-size: 2.25rem;
    margin-bottom: 1.25rem;
  }
  .about-lead-quote {
    font-size: 1.15rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
  }
  .about-lead-sub {
    font-size: 0.9375rem;
    line-height: 1.65;
    margin-bottom: 1.75rem;
  }
  .about-actions-row {
    margin-bottom: 3rem;
  }
  .about-airlines-block {
    padding-top: 2.5rem;
  }
}

/* ==========================================================================
   4. DOMAIN & TECH RIBBON / MARQUEE
   ========================================================================== */

.marquee-section {
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--border-light);
  overflow: hidden;
  background: var(--bg-surface);
  position: relative;
}

.marquee-container {
  display: flex;
  width: max-content;
  animation: marquee-scroll 32s linear infinite;
  gap: 3.5rem;
}

.marquee-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  white-space: nowrap;
}

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

@keyframes marquee-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ==========================================================================
   5. EDITORIAL SECTIONS (Experience, Focus, Open Source, Writing)
   ========================================================================== */

.editorial-section {
  padding: 7.5rem 0;
  border-bottom: 1px solid var(--border-light);
}

.section-head-numbered {
  margin-bottom: 4rem;
}

.section-number-eyebrow {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 0.75rem;
}

.section-main-heading {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.15;
  color: var(--text-primary);
  max-width: 800px;
}

@media (max-width: 850px) {
  .editorial-section {
    padding: 4.5rem 0;
  }
  .section-head-numbered {
    margin-bottom: 2.5rem;
    text-align: center;
  }
  .section-number-eyebrow {
    text-align: center;
  }
  .section-main-heading {
    font-size: 2.15rem;
    text-align: center;
    margin: 0 auto;
  }
}

/* Experience List */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.experience-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 18px;
  padding: 2.75rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.experience-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.05);
}

.experience-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.experience-period-badge {
  font-size: 0.8125rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 0.35rem;
}

.experience-company {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.experience-role {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.experience-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.75rem;
}

.experience-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-chip {
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: var(--bg-surface-subtle);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

@media (max-width: 850px) {
  .experience-card {
    padding: 2rem 1.25rem;
  }
  .experience-company {
    font-size: 1.35rem;
  }
}

/* Focus Areas Grid */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.75rem;
}

@media (max-width: 640px) {
  .focus-grid {
    grid-template-columns: 1fr;
  }
}

.focus-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.75rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.015);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-fast);
}

.focus-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.04);
  border-color: var(--border-medium);
}

.focus-number {
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.focus-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0.5rem 0 0.75rem 0;
  color: var(--text-primary);
}

.focus-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex-grow: 1;
}

.focus-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

.tag-chip-sm {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  background: var(--bg-surface-subtle);
  color: var(--text-secondary);
}

@media (max-width: 850px) {
  .focus-card {
    padding: 1.85rem 1.25rem;
  }
}

/* ==========================================================================
   PATENTS & INTELLECTUAL PROPERTY (2 Dedicated IP Cards)
   ========================================================================== */

.patents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 2rem;
}

@media (max-width: 640px) {
  .patents-grid {
    grid-template-columns: 1fr;
  }
}

.patent-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 18px;
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-fast);
  position: relative;
}

.patent-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.05);
  border-color: var(--text-primary);
}

.patent-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.patent-badge {
  font-size: 0.8125rem;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.patent-type-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: var(--text-primary);
  color: var(--text-inverse);
  letter-spacing: 0.02em;
}

.patent-title {
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.3;
  color: var(--text-primary);
}

.patent-summary {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.6;
}

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

.patent-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-light);
}

@media (max-width: 850px) {
  .patent-card {
    padding: 2rem 1.25rem;
  }
  .patent-title {
    font-size: 1.35rem;
  }
}

/* Open Source Grid */
.oss-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.75rem;
}

@media (max-width: 640px) {
  .oss-grid {
    grid-template-columns: 1fr;
  }
}

.oss-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  transition: transform var(--transition-smooth), border-color var(--transition-fast), box-shadow var(--transition-smooth);
}

.oss-card:hover {
  transform: translateY(-3px);
  border-color: var(--text-primary);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.05);
}

.oss-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.oss-title-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.oss-icon {
  width: 18px;
  height: 18px;
  stroke: var(--text-primary);
}

.oss-name {
  font-size: 1.15rem;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.oss-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: var(--text-primary);
  color: var(--text-inverse);
}

.oss-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.oss-link-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
}

.oss-arrow {
  transition: transform var(--transition-fast);
}

.oss-card:hover .oss-arrow {
  transform: translate(2px, -2px);
}

/* Technical Writing Grid */
.writing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

@media (max-width: 640px) {
  .writing-grid {
    grid-template-columns: 1fr;
  }
}

.writing-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: transform var(--transition-smooth), border-color var(--transition-fast), box-shadow var(--transition-smooth);
}

.writing-card:hover {
  transform: translateY(-3px);
  border-color: var(--text-primary);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.05);
}

.writing-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.writing-source {
  font-size: 0.8125rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
}

.writing-arrow {
  font-size: 1.1rem;
  color: var(--text-primary);
  transition: transform var(--transition-fast);
}

.writing-card:hover .writing-arrow {
  transform: translate(2px, -2px);
}

.writing-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--text-primary);
}

.writing-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   6. FOOTER
   ========================================================================== */

.finox-footer {
  padding: 6.5rem 0 3.5rem 0;
  background: var(--bg-surface-contrast);
  color: var(--text-inverse);
}

.footer-hero-headline {
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.2;
  margin-bottom: 2rem;
  max-width: 850px;
}

.footer-links-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.footer-action-link {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding-bottom: 2px;
  border-bottom: 1.5px solid rgba(255, 255, 255, 0.4);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.footer-action-link:hover {
  border-color: #ffffff;
  transform: translateX(2px);
}

.footer-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 2.25rem;
  margin-top: 5rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  flex-wrap: wrap;
  gap: 1rem;
}

@media (max-width: 850px) {
  .finox-footer {
    padding: 4rem 0 2.5rem 0;
    text-align: center;
  }
  .footer-hero-headline {
    font-size: 2.25rem;
    margin: 0 auto 1.5rem auto;
  }
  .footer-links-row {
    justify-content: center;
    gap: 1rem;
  }
  .footer-meta-row {
    flex-direction: column;
    gap: 1rem;
    margin-top: 3rem;
  }
}