/* ==========================================================================
   NETFORGE SOLUTIONS — SWISS INTERNATIONAL TYPOGRAPHIC STYLE SYSTEM
   Location: Sabana Sur, San José, Costa Rica
   Brand Palette: Extracted from authentic Netforge Isometric Cube Logo
     - Obsidian Ground: #0A1019
     - Electric Sky Cyan: #39BDF7 (N-stem)
     - Glacial Ice Cyan: #7DD2FA (N-diagonal, Top inner)
     - Azure Cobalt Blue: #61A5F8 (Top outer)
     - Ice Ring Tint: #DBF3FE
     - Crisp Frosted White: #E1F2FD (F-glyph)
   ========================================================================== */

:root,
html[data-theme="light"] {
  /* Day Theme Palette */
  --color-bg: #F8FAFC;              /* Crisp cool alabaster */
  --color-surface: #FFFFFF;         /* Pure architectural white */
  --color-surface-subtle: #F1F5F9;  /* Soft slate surface */
  --color-surface-tint: #E2E8F0;    /* Structural divider tint */
  
  --color-ink-primary: #0A1019;     /* Authentic Logo Obsidian (>18:1 contrast on white) */
  --color-ink-secondary: #334155;   /* Slate body text (>10:1 contrast) */
  --color-ink-muted: #566579;       /* Fine metadata label text (>5.9:1 contrast, WCAG AA) */
  
  --color-border: #E2E8F0;          /* Hairline structural rule */
  --color-border-subtle: #EDF2F7;   /* Ultra-fine card boundary */
  --color-border-dark: #0A1019;     /* Strong structural grid line */
  
  /* Brand Accents — Calibrated for Light Backgrounds */
  --color-accent: #0284C7;          /* Oceanic Cyan-Blue derived from #61A5F8/#39BDF7 */
  --color-accent-hover: #0369A1;    /* Deep Cobalt Blue */
  --color-accent-active: #0C4A6E;   /* Deepest Navy Blue */
  --color-accent-subtle: #E0F2FE;   /* Glacial tint background */
  --color-accent-contrast: #FFFFFF; /* High contrast text on accent buttons (5.93:1) */
  --color-focus-ring: #0284C7;
  
  /* Component Surfaces */
  --header-bg: rgba(248, 250, 252, 0.94);
  --hero-cube-bg: linear-gradient(180deg, #F8FAFC 0%, #EEF2F6 100%);
  --hero-card-header-bg: #F1F5F9;
  
  /* Form Controls */
  --input-bg: #FFFFFF;
  --input-focus-bg: #FFFFFF;
  --input-border: #CBD5E1;
  
  /* Status Colors */
  --status-success-bg: #F0FDF4;
  --status-success-border: #86EFAC;
  --status-success-ink: #166534;
  
  --status-info-bg: #F0F9FF;
  --status-info-border: #BAE6FD;
  --status-info-ink: #0369A1;
  
  --status-error-bg: #FEF2F2;
  --status-error-border: #FECACA;
  --status-error-ink: #991B1B;
  
  /* Footer Tokens - Light Theme */
  --footer-bg: #F1F5F9;             /* Soft architectural slate ground */
  --footer-border: #E2E8F0;         /* Fine structural rule */
  --footer-heading: #0A1019;        /* High-contrast brand obsidian (>17:1 on #F1F5F9) */
  --footer-text: #334155;           /* Readable body slate (>9:1 on #F1F5F9) */
  --footer-muted: #566579;          /* Accessible metadata caption (>5.3:1 on #F1F5F9) */
  --footer-link: #334155;           /* Structural link color */
  --footer-link-hover: #0284C7;     /* Brand cyan-blue accent */
  --footer-btn-border: #CBD5E1;     /* Subtle button border */
  
  /* Logo presentation */
  --logo-mark-bg: #0A1019;
  --logo-mark-border: #E2E8F0;

  /* Typography Scale (Fluid Swiss Modular) */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
  
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.84rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.25vw, 1.0625rem);
  --text-md: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
  --text-lg: clamp(1.35rem, 1.2rem + 0.6vw, 1.625rem);
  --text-xl: clamp(1.75rem, 1.5rem + 1vw, 2.25rem);
  --text-2xl: clamp(2.25rem, 1.8rem + 1.8vw, 3.25rem);
  --text-hero: clamp(2.75rem, 2.2rem + 4.2vw, 5.5rem);
  
  /* Line Heights */
  --leading-tight: 1.08;
  --leading-snug: 1.22;
  --leading-normal: 1.55;
  --leading-relaxed: 1.68;
  
  /* Layout Spacing (Swiss Modular Scale) */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --space-2xl: 5.5rem;
  --space-3xl: 8rem;
  
  /* Grid & Max Widths */
  --container-max: 1360px;
  --container-pad: clamp(1rem, 4vw, 3rem);
  --header-height: 76px;
  
  /* Transitions */
  --transition-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 280ms cubic-bezier(0.16, 1, 0.3, 1);

  color-scheme: light;
}

html[data-theme="dark"] {
  /* Night Theme Palette — Art-Directed around authentic logo */
  --color-bg: #0A1019;              /* The authentic Netforge Logo background */
  --color-surface: #111A27;         /* Deep obsidian elevation */
  --color-surface-subtle: #172233;  /* Sub-elevation surface */
  --color-surface-tint: #1E2D44;    /* Subtle highlight tint */
  
  --color-ink-primary: #F8FAFC;     /* Crisp white text (>17:1 contrast on #0A1019) */
  --color-ink-secondary: #94A3B8;   /* Slate neutral text (>7.4:1 contrast) */
  --color-ink-muted: #8293A6;       /* Metadata text (>6.0:1 contrast) */
  
  --color-border: #22334A;          /* Crisp tech grid boundary */
  --color-border-subtle: #182538;   /* Subtle divider */
  --color-border-dark: #39BDF7;     /* High-impact accent rule */
  
  /* Brand Accents — Direct from Logo Vectors */
  --color-accent: #39BDF7;          /* Logo Stem Electric Cyan (8.90:1 contrast on #0A1019) */
  --color-accent-hover: #7DD2FA;    /* Logo Inner/Diagonal Ice Cyan (11.33:1 contrast) */
  --color-accent-active: #61A5F8;   /* Logo Outer Azure Blue (7.49:1 contrast) */
  --color-accent-subtle: rgba(57, 189, 247, 0.12); /* Cyan glow highlight */
  --color-accent-contrast: #0A1019; /* High-contrast obsidian black text on electric cyan (8.9:1) */
  --color-focus-ring: #7DD2FA;
  
  /* Component Surfaces */
  --header-bg: rgba(10, 16, 25, 0.94);
  --hero-cube-bg: linear-gradient(180deg, #131E2E 0%, #0D1522 100%);
  --hero-card-header-bg: #172233;
  
  /* Form Controls */
  --input-bg: #101824;
  --input-focus-bg: #141F30;
  --input-border: #2B3D55;
  
  /* Status Colors */
  --status-success-bg: #062E1A;
  --status-success-border: #166534;
  --status-success-ink: #86EFAC;
  
  --status-info-bg: #0B2942;
  --status-info-border: #0369A1;
  --status-info-ink: #7DD2FA;
  
  --status-error-bg: #381010;
  --status-error-border: #991B1B;
  --status-error-ink: #FCA5A5;
  
  /* Footer Tokens - Dark Theme */
  --footer-bg: #070B11;             /* Ultra-deep obsidian closure */
  --footer-border: #22334A;         /* Tech grid rule */
  --footer-heading: #F8FAFC;        /* High-contrast crisp white (>18:1 on #070B11) */
  --footer-text: #94A3B8;           /* Comfortable slate (>7:1 on #070B11) */
  --footer-muted: #8293A6;          /* Metadata caption (>6:1 on #070B11) */
  --footer-link: #94A3B8;           /* Link color */
  --footer-link-hover: #39BDF7;     /* Electric cyan accent */
  --footer-btn-border: rgba(255, 255, 255, 0.18);
  
  /* Logo presentation */
  --logo-mark-bg: #0A1019;
  --logo-mark-border: #22334A;

  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    /* If user hasn't explicitly chosen light theme, honor OS preference */
    --color-bg: #0A1019;
    --color-surface: #111A27;
    --color-surface-subtle: #172233;
    --color-surface-tint: #1E2D44;
    --color-ink-primary: #F8FAFC;
    --color-ink-secondary: #94A3B8;
    --color-ink-muted: #8293A6;
    --color-border: #22334A;
    --color-border-subtle: #182538;
    --color-border-dark: #39BDF7;
    --color-accent: #39BDF7;
    --color-accent-hover: #7DD2FA;
    --color-accent-active: #61A5F8;
    --color-accent-subtle: rgba(57, 189, 247, 0.12);
    --color-accent-contrast: #0A1019;
    --color-focus-ring: #7DD2FA;
    --header-bg: rgba(10, 16, 25, 0.94);
    --hero-cube-bg: linear-gradient(180deg, #131E2E 0%, #0D1522 100%);
    --hero-card-header-bg: #172233;
    --input-bg: #101824;
    --input-focus-bg: #141F30;
    --input-border: #2B3D55;
    --status-success-bg: #062E1A;
    --status-success-border: #166534;
    --status-success-ink: #86EFAC;
    --status-info-bg: #0B2942;
    --status-info-border: #0369A1;
    --status-info-ink: #7DD2FA;
    --status-error-bg: #381010;
    --status-error-border: #991B1B;
    --status-error-ink: #FCA5A5;
    --footer-bg: #070B11;
    --footer-border: #22334A;
    --footer-heading: #F8FAFC;
    --footer-text: #94A3B8;
    --footer-muted: #8293A6;
    --footer-link: #94A3B8;
    --footer-link-hover: #39BDF7;
    --footer-btn-border: rgba(255, 255, 255, 0.18);
    --logo-mark-bg: #0A1019;
    --logo-mark-border: #22334A;
    color-scheme: dark;
  }
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

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

html {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-ink-primary);
  font-size: 16px;
  line-height: var(--leading-normal);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  color: var(--color-ink-primary);
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

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

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

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

ul, ol {
  list-style: none;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1.5rem;
  background: var(--color-ink-primary);
  color: var(--color-bg);
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  font-size: var(--text-sm);
  z-index: 9999;
  border-radius: 2px;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1.5rem;
  outline: 3px solid var(--color-accent);
}

/* Focus Visibility Standard */
:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
}

/* ==========================================================================
   LAYOUT UTILITIES & CONTAINER
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.editorial-rule {
  width: 100%;
  height: 1px;
  background-color: var(--color-border);
  border: none;
}

.editorial-rule-dark {
  width: 100%;
  height: 2px;
  background-color: var(--color-border-dark);
  border: none;
}

/* Swiss Section Numbering & Badges */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-secondary);
  margin-bottom: var(--space-sm);
}

.section-tag::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  color: var(--color-ink-primary);
}

.section-subtitle {
  font-size: var(--text-md);
  color: var(--color-ink-secondary);
  line-height: var(--leading-relaxed);
  max-width: 65ch;
  margin-top: var(--space-xs);
}

/* ==========================================================================
   BUTTONS & CTAs
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.625rem;
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  border-radius: 0;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 48px;
  text-align: center;
}

.btn:disabled,
.btn[aria-busy="true"] {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-accent);
  color: var(--color-ink-primary);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-ink-primary);
  border-color: transparent;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
}

.btn-ghost:hover {
  background-color: var(--color-surface-subtle);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.5rem 0.875rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-ink-primary);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.theme-toggle-btn:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-accent);
}

.theme-toggle-btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* Icon visibility matching theme state */
html[data-theme="light"] .icon-moon,
:root:not([data-theme="dark"]) .icon-moon {
  display: inline-block;
}
html[data-theme="light"] .icon-sun,
:root:not([data-theme="dark"]) .icon-sun {
  display: none;
}

html[data-theme="dark"] .icon-sun {
  display: inline-block;
}
html[data-theme="dark"] .icon-moon {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun {
    display: inline-block;
  }
  :root:not([data-theme="light"]) .icon-moon {
    display: none;
  }
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

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

.brand-identity {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  text-decoration: none;
}

.brand-logo-mark {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 4px;
  background-color: var(--logo-mark-bg);
  border: 1px solid var(--logo-mark-border);
  box-shadow: 0 1px 3px rgba(10, 16, 25, 0.2);
  padding: 2px;
}

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

.brand-title {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--color-ink-primary);
  line-height: 1.1;
}

.brand-location-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  text-transform: uppercase;
}

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

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-secondary);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

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

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

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

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.5rem;
  width: 44px;
  height: 44px;
  cursor: pointer;
  position: relative;
  align-items: center;
  justify-content: center;
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-ink-primary);
  position: relative;
  transition: all var(--transition-fast);
}

.hamburger-line::before,
.hamburger-line::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 2px;
  background-color: var(--color-ink-primary);
  left: 0;
  transition: all var(--transition-fast);
}

.hamburger-line::before {
  top: -7px;
}

.hamburger-line::after {
  bottom: -7px;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line {
  background-color: transparent;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line::after {
  bottom: 0;
  transform: rotate(-45deg);
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 380px;
  background-color: var(--color-bg);
  border-left: 1px solid var(--color-border);
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.2);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  z-index: 999;
  visibility: hidden;
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-drawer-backdrop {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 16, 25, 0.6);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth);
}

.mobile-drawer-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-nav-link {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-ink-primary);
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-nav-link span.index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.mobile-drawer-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.mobile-contact-pill {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-secondary);
  line-height: 1.8;
}

/* ==========================================================================
   HERO SECTION (SWISS POSTER COMPOSITION)
   ========================================================================== */

.hero-section {
  padding-top: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: clamp(3rem, 7vw, 6rem);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  background-color: var(--color-bg);
}

.hero-editorial-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-secondary);
}

.hero-editorial-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.hero-editorial-label::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
}

.hero-editorial-meta {
  color: var(--color-ink-muted);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: start;
  }
}

.hero-main-title {
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.04em;
  color: var(--color-ink-primary);
  margin-bottom: 1.75rem;
}

.hero-lead-text {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-ink-secondary);
  max-width: 58ch;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

/* Swiss Architectural Hero Aside */
.hero-aside-card {
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
}

.hero-card-header {
  padding: 1rem 1.25rem;
  background-color: var(--hero-card-header-bg);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}

.hero-cube-visual {
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--hero-cube-bg);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.hero-cube-svg {
  width: 140px;
  height: 140px;
  border-radius: 12px;
  background-color: var(--logo-mark-bg);
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 24px rgba(10, 16, 25, 0.25);
}

.hero-cube-caption {
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--color-ink-secondary);
  text-transform: uppercase;
}

.hero-card-table {
  width: 100%;
  border-collapse: collapse;
}

.hero-card-table tr {
  border-bottom: 1px solid var(--color-border-subtle);
}

.hero-card-table tr:last-child {
  border-bottom: none;
}

.hero-card-table th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  text-align: left;
  padding: 0.875rem 1.25rem;
  width: 38%;
  background-color: var(--color-surface-subtle);
  border-right: 1px solid var(--color-border-subtle);
}

.hero-card-table td {
  font-size: var(--text-sm);
  color: var(--color-ink-primary);
  font-weight: 500;
  padding: 0.875rem 1.25rem;
}

/* ==========================================================================
   SERVICES SECTION (01 / SERVICIOS)
   ========================================================================== */

.section-services {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.services-header-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

@media (min-width: 768px) {
  .services-header-row {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: flex-end;
  }
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 2px solid var(--color-border-dark);
}

@media (min-width: 900px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  padding: clamp(2rem, 3.5vw, 3rem) clamp(1.25rem, 2.5vw, 2.25rem);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: background-color var(--transition-fast);
}

@media (min-width: 900px) {
  .service-card {
    border-right: 1px solid var(--color-border);
  }
  .service-card:last-child {
    border-right: none;
  }
}

.service-card:hover {
  background-color: var(--color-surface-subtle);
}

.service-top-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.service-index {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-ink-primary);
  line-height: 1;
}

.service-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.625rem;
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-ink-secondary);
}

.service-title {
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-ink-primary);
  margin-bottom: 1.25rem;
}

.service-description {
  font-size: var(--text-base);
  color: var(--color-ink-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: 1.75rem;
}

.service-bullet-list {
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.service-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: var(--text-sm);
  color: var(--color-ink-primary);
}

.bullet-dash {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-weight: 700;
}

.service-note-box {
  margin-top: 1.5rem;
  padding: 0.875rem 1rem;
  background-color: var(--color-surface-subtle);
  border-left: 2px solid var(--color-accent);
  font-size: var(--text-xs);
  color: var(--color-ink-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   WHY NETFORGE (02 / ENFOQUE Y COMPROMISOS)
   ========================================================================== */

.section-why {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface-subtle);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

@media (min-width: 640px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .why-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
  }
}

.why-item {
  padding: clamp(1.75rem, 3vw, 2.5rem);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-fast);
}

@media (min-width: 1024px) {
  .why-item {
    border-top: none;
    border-bottom: none;
    border-right: 1px solid var(--color-border);
  }
  .why-item:first-child {
    border-left: 1px solid var(--color-border);
  }
}

.why-item:hover {
  background-color: var(--color-surface-subtle);
}

.why-number {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.why-heading {
  font-size: var(--text-md);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-ink-primary);
  margin-bottom: 0.875rem;
}

.why-text {
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  line-height: var(--leading-relaxed);
}

/* ==========================================================================
   HOW WE WORK (03 / PROCESO DE TRABAJO)
   ========================================================================== */

.section-process {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  border-top: 2px solid var(--color-border-dark);
}

@media (min-width: 768px) {
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process-step {
  padding: clamp(2rem, 3vw, 2.75rem) clamp(1.25rem, 2vw, 2rem);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: background-color var(--transition-fast);
}

@media (min-width: 768px) {
  .process-step {
    border-right: 1px solid var(--color-border);
  }
}

@media (min-width: 1100px) {
  .process-step:nth-child(4) {
    border-right: none;
  }
}

.process-step:hover {
  background-color: var(--color-surface-subtle);
}

.process-step-num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 1.5rem;
}

.process-step-title {
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-ink-primary);
  margin-bottom: 1rem;
}

.process-step-desc {
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  line-height: var(--leading-relaxed);
}

/* ==========================================================================
   ABOUT US: MISSION & VISION (04 / NOSOTROS)
   ========================================================================== */

.section-about {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.about-split-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

@media (min-width: 900px) {
  .about-split-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--color-border);
  }
}

.about-column {
  padding: clamp(2rem, 4vw, 3.5rem);
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
}

@media (min-width: 900px) {
  .about-column:first-child {
    border-right: 1px solid var(--color-border);
  }
  .about-column:last-child {
    background-color: var(--color-surface-subtle);
  }
}

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

.about-quote {
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.6;
  color: var(--color-ink-primary);
  margin-bottom: 1.5rem;
}

.about-note {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: var(--leading-normal);
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  margin-top: auto;
}

/* ==========================================================================
   TEAM SECTION (05 / EQUIPO)
   ========================================================================== */

.section-team {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.team-grid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  border-top: 2px solid var(--color-border-dark);
}

@media (min-width: 640px) {
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .team-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.team-card {
  padding: clamp(1.75rem, 2.5vw, 2.25rem);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-fast);
}

@media (min-width: 640px) {
  .team-card {
    border-right: 1px solid var(--color-border);
  }
}

@media (min-width: 1024px) {
  .team-card:last-child {
    border-right: none;
  }
}

.team-card:hover {
  background-color: var(--color-surface-subtle);
}

.team-initials-badge {
  width: 48px;
  height: 48px;
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-ink-primary);
  margin-bottom: 1.5rem;
}

.team-card:first-child .team-initials-badge {
  background-color: var(--color-accent);
  color: var(--color-accent-contrast);
  border-color: var(--color-accent);
}

.team-name {
  font-size: var(--text-md);
  font-weight: 700;
  color: var(--color-ink-primary);
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

.team-role {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1.4;
  margin-bottom: 1rem;
}

.team-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-ink-muted);
  border-top: 1px solid var(--color-border);
  padding-top: 0.875rem;
  margin-top: auto;
}

/* ==========================================================================
   FAQ SECTION (06 / PREGUNTAS FRECUENTES)
   ========================================================================== */

.section-faq {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface-subtle);
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

@media (min-width: 900px) {
  .faq-layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 4rem;
  }
}

.faq-aside {
  display: flex;
  flex-direction: column;
}

.faq-aside-box {
  padding: 1.75rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  margin-top: 1.5rem;
}

.faq-accordion-list {
  display: flex;
  flex-direction: column;
  border-top: 2px solid var(--color-border-dark);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
  transition: background-color var(--transition-fast);
}

.faq-item[open] {
  background-color: var(--color-surface);
}

.faq-summary {
  list-style: none;
  padding: 1.35rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  user-select: none;
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--color-ink-primary);
  transition: color var(--transition-fast);
}

.faq-summary::-webkit-details-marker {
  display: none;
}

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

.faq-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 1.125rem;
  line-height: 1;
  color: var(--color-ink-primary);
  flex-shrink: 0;
  transition: transform var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.faq-item[open] .faq-indicator {
  transform: rotate(45deg);
  background-color: var(--color-accent);
  color: var(--color-accent-contrast);
  border-color: var(--color-accent);
}

.faq-content {
  padding: 0 1.5rem 1.5rem 1.5rem;
  font-size: var(--text-base);
  color: var(--color-ink-secondary);
  line-height: var(--leading-relaxed);
}

/* ==========================================================================
   CONTACT SECTION (07 / CONTACTO)
   ========================================================================== */

.section-contact {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

@media (min-width: 960px) {
  .contact-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
  }
}

.contact-info-col {
  display: flex;
  flex-direction: column;
}

.contact-info-card {
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
  margin-top: 1.5rem;
}

.contact-channel {
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.contact-channel:last-child {
  border-bottom: none;
}

.contact-channel-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-bottom: 0.35rem;
}

.contact-channel-val {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-ink-primary);
  line-height: 1.3;
}

a.contact-channel-val {
  color: var(--color-ink-primary);
  transition: color var(--transition-fast);
}

a.contact-channel-val:hover {
  color: var(--color-accent);
}

.contact-channel-sub {
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  margin-top: 0.25rem;
}

/* Contact Form Architecture */
.contact-form-wrapper {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: clamp(1.75rem, 3.5vw, 3rem);
}

.form-header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.form-header h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-ink-primary);
}

.form-header p {
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  margin-top: 0.25rem;
}

.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-primary);
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
}

.form-label .req {
  color: var(--color-accent);
}

.form-label .opt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-ink-muted);
}

.form-control {
  width: 100%;
  padding: 0.875rem 1rem;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 0;
  font-size: var(--text-base);
  color: var(--color-ink-primary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.form-control:focus {
  background-color: var(--input-focus-bg);
  border-color: var(--color-accent);
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 1px;
}

.form-control.error {
  border-color: var(--status-error-border);
  background-color: var(--status-error-bg);
}

.field-error {
  font-size: 0.75rem;
  color: var(--status-error-ink);
  margin-top: 0.35rem;
  font-weight: 600;
  display: none;
}

.form-services-fieldset {
  border: 1px solid var(--color-border);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  background-color: var(--color-surface-subtle);
}

.form-services-legend {
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0 0.5rem;
  color: var(--color-ink-primary);
}

.checkbox-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

@media (min-width: 480px) {
  .checkbox-group {
    grid-template-columns: repeat(3, 1fr);
  }
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  color: var(--color-ink-primary);
  cursor: pointer;
}

.checkbox-input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
}

.form-action-area {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.form-status-box {
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  font-size: var(--text-sm);
  line-height: 1.55;
  display: none;
  margin-top: 1rem;
}

.form-status-box.success {
  display: block;
  background-color: var(--status-success-bg);
  border-color: var(--status-success-border);
  color: var(--status-success-ink);
}

.form-status-box.info {
  display: block;
  background-color: var(--status-info-bg);
  border-color: var(--status-info-border);
  color: var(--status-info-ink);
}

.form-status-box.error {
  display: block;
  background-color: var(--status-error-bg);
  border-color: var(--status-error-border);
  color: var(--status-error-ink);
}

/* ==========================================================================
   FOOTER (SWISS ARCHITECTURAL CLOSURE)
   ========================================================================== */

.site-footer {
  background-color: var(--footer-bg);
  color: var(--footer-text);
  padding-top: clamp(4rem, 6vw, 6rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--footer-border);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  padding-bottom: clamp(3rem, 5vw, 4rem);
  border-bottom: 1px solid var(--footer-border);
}

@media (min-width: 900px) {
  .footer-top-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
  }
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
}

.footer-brand-title {
  font-size: var(--text-xl);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  color: var(--footer-heading);
  margin-bottom: 1rem;
}

.footer-tagline {
  font-size: var(--text-base);
  color: var(--footer-text);
  line-height: var(--leading-relaxed);
  max-width: 44ch;
  margin-bottom: 1.5rem;
}

.footer-location-block {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--footer-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-nav-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--footer-heading);
  margin-bottom: 1.5rem;
}

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

.footer-nav-link {
  font-size: var(--text-sm);
  color: var(--footer-link);
  transition: color var(--transition-fast);
}

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

.footer-contact-item {
  margin-bottom: 1rem;
}

.footer-contact-item .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--footer-muted);
  display: block;
  margin-bottom: 0.2rem;
}

.footer-contact-item a {
  font-size: var(--text-sm);
  color: var(--footer-heading);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer-contact-item a:hover {
  color: var(--footer-link-hover);
}

.footer-contact-val {
  font-size: var(--text-sm);
  color: var(--footer-text);
}

.footer-bottom-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 2rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--footer-muted);
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--footer-link);
  background: var(--color-surface);
  border: 1px solid var(--footer-btn-border);
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.back-to-top-btn:hover {
  color: var(--footer-heading);
  border-color: var(--footer-link-hover);
}

/* ==========================================================================
   RESPONSIVE OVERRIDES
   ========================================================================= */

@media (max-width: 991px) {
  .desktop-nav {
    display: none;
  }
  .header-cta-group .btn-primary {
    display: none;
  }
  .mobile-nav-toggle {
    display: flex;
  }
}

@media (max-width: 480px) {
  .brand-location-tag {
    display: none;
  }
  .hero-actions .btn {
    width: 100%;
  }
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}