/* ==========================================================================
   OptimumCortex AI — Design System
   Brand: Enterprise Premium | Inspired by Microsoft Azure, IBM, Palantir
   Fonts: Sora (headings) + Inter (body)
   ========================================================================== */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

/* ---- Design Tokens ---- */
:root {
  /* Brand Colors */
  --clr-deep-blue:    #0A2540;
  --clr-electric:     #0066FF;
  --clr-cyan:         #00B4FF;
  --clr-white:        #FFFFFF;
  --clr-slate:        #4B5563;
  --clr-silver:       #D1D5DB;

  /* Extended Palette */
  --clr-bg-dark:      #061828;
  --clr-bg-section:   #0D2035;
  --clr-bg-card:      rgba(13, 32, 53, 0.8);
  --clr-border:       rgba(0, 102, 255, 0.15);
  --clr-border-hover: rgba(0, 180, 255, 0.4);
  --clr-text-primary: #E8EDF5;
  --clr-text-muted:   #8BA3C7;
  --clr-text-light:   #4B5563;

  /* Gradients */
  --grad-primary:     linear-gradient(135deg, #0066FF 0%, #00B4FF 100%);
  --grad-hero:        linear-gradient(135deg, #061828 0%, #0A2540 50%, #0D2F50 100%);
  --grad-card:        linear-gradient(145deg, rgba(13,37,64,0.9) 0%, rgba(10,32,53,0.95) 100%);
  --grad-glow:        radial-gradient(ellipse at center, rgba(0,102,255,0.15) 0%, transparent 70%);

  /* Typography */
  --font-heading:     'Sora', Arial, sans-serif;
  --font-body:        'Inter', Arial, sans-serif;

  /* Spacing */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  6rem;

  /* Border radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.5);
  --shadow-blue: 0 4px 24px rgba(0,102,255,0.25);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.3), 0 0 1px rgba(0,180,255,0.1);

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

  /* Z-index */
  --z-navbar:   1000;
  --z-overlay:  900;
  --z-modal:    1100;

  /* Layout */
  --container-max: 1200px;
  --navbar-h:      90px;
}

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

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--clr-text-primary);
  background-color: var(--clr-bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

ul, ol {
  list-style: none;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-white);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: clamp(1rem, 2vw, 1.25rem); }

p { margin-bottom: var(--space-md); }

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-muted { color: var(--clr-text-muted); }
.text-center { text-align: center; }
.text-electric { color: var(--clr-electric); }
.text-cyan { color: var(--clr-cyan); }

/* ==========================================================================
   LAYOUT
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

@media (max-width: 768px) {
  .container { padding: 0 var(--space-md); }
}

section {
  padding: var(--space-4xl) 0;
}

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

/* ==========================================================================
   NAVBAR
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-h);
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  z-index: var(--z-navbar);
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.1);
  border-bottom-color: #d1d5db;
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-sm);
}

.navbar__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.navbar__logo img,
.navbar__logo svg {
  height: auto;
  width: auto;
}

/* Navbar logo — sized for 1773×308 source (ratio 5.76:1) */
.navbar__logo-img {
  height: 70px;
  width: auto;
  max-width: 403px;
}

.footer__logo-img {
  height: 60px;
  width: auto;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}

.navbar__link {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: #374151;
  padding: 6px 10px;
  border-radius: var(--radius-md);
  transition: color var(--transition-base), background var(--transition-base);
  white-space: nowrap;
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--clr-electric);
  background: rgba(0, 102, 255, 0.06);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* Language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-full);
  padding: 3px;
}

.lang-switcher__btn {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #6b7280;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.lang-switcher__btn:hover { color: var(--clr-electric); }
.lang-switcher__btn--active {
  background: var(--grad-primary);
  color: var(--clr-white);
}

/* Mobile hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.navbar__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #374151;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

@media (max-width: 1280px) {
  .navbar__nav { display: none; }
  .navbar__hamburger { display: flex; }

  .navbar__nav--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--navbar-h);
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    padding: var(--space-md) var(--space-xl);
    gap: var(--space-xs);
  }

  .navbar__link { font-size: 1rem; padding: var(--space-md); }
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  padding: 0.75rem 1.75rem;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}

.btn--primary {
  background: var(--grad-primary);
  color: var(--clr-white);
  box-shadow: var(--shadow-blue);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,102,255,0.4);
  color: var(--clr-white);
}

.btn--outline {
  background: transparent;
  color: var(--clr-text-primary);
  border: 1px solid var(--clr-border);
}

.btn--outline:hover {
  border-color: var(--clr-electric);
  color: var(--clr-white);
  background: rgba(0,102,255,0.08);
}

.btn--ghost {
  background: rgba(255,255,255,0.05);
  color: var(--clr-text-primary);
  border: 1px solid rgba(255,255,255,0.1);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  color: var(--clr-white);
}

.btn--lg {
  font-size: 1rem;
  padding: 1rem 2.25rem;
  border-radius: var(--radius-lg);
}

.btn--sm {
  font-size: 0.8125rem;
  padding: 0.5rem 1.25rem;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--grad-hero);
  overflow: hidden;
  padding-top: var(--navbar-h);
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,102,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,102,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__glow {
  position: absolute;
  top: 20%;
  right: 10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(0,102,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero__glow2 {
  position: absolute;
  bottom: 10%;
  left: 5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(0,180,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(0,102,255,0.1);
  border: 1px solid rgba(0,102,255,0.3);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  margin-bottom: var(--space-xl);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--clr-cyan);
  letter-spacing: 0.05em;
}

.hero__badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 400;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
  max-width: 600px;
}

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

/* ==========================================================================
   SECTION HEADERS
   ========================================================================== */

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-cyan);
  margin-bottom: var(--space-md);
}

.section-header__title {
  margin-bottom: var(--space-md);
}

.section-header__subtitle {
  font-size: 1.125rem;
  color: var(--clr-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   CARDS
   ========================================================================== */

.card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  border-color: var(--clr-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0,102,255,0.1);
}

.card:hover::before {
  opacity: 1;
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: rgba(0,102,255,0.12);
  border: 1px solid rgba(0,102,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
  color: var(--clr-cyan);
  transition: all var(--transition-base);
}

.card:hover .card__icon {
  background: rgba(0,102,255,0.2);
  border-color: rgba(0,180,255,0.4);
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--clr-white);
}

.card__text {
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ==========================================================================
   GRIDS
   ========================================================================== */

.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
}

/* ==========================================================================
   STATS SECTION
   ========================================================================== */

.stats {
  background: var(--grad-card);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: var(--space-3xl) 0;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

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

.stats__item { padding: var(--space-lg); }

.stats__number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stats__label {
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
  font-weight: 500;
}

/* ==========================================================================
   HERO SUB-PAGES
   ========================================================================== */

.page-hero {
  padding: calc(var(--navbar-h) + var(--space-4xl)) 0 var(--space-4xl);
  background: var(--grad-hero);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,102,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,102,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-hero__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-cyan);
  background: rgba(0,180,255,0.08);
  border: 1px solid rgba(0,180,255,0.2);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  margin-bottom: var(--space-lg);
}

.page-hero__title {
  margin-bottom: var(--space-lg);
}

.page-hero__subtitle {
  font-size: 1.125rem;
  color: var(--clr-text-muted);
  max-width: 640px;
  margin: 0 auto;
}

/* ==========================================================================
   CTA SECTION
   ========================================================================== */

.cta-section {
  background: linear-gradient(135deg, rgba(0,102,255,0.08) 0%, rgba(0,180,255,0.05) 100%);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  text-align: center;
  padding: var(--space-4xl) 0;
}

.cta-section__title {
  margin-bottom: var(--space-md);
}

.cta-section__subtitle {
  font-size: 1.125rem;
  color: var(--clr-text-muted);
  max-width: 540px;
  margin: 0 auto var(--space-2xl);
}

.cta-section__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ==========================================================================
   TAGS / BADGES
   ========================================================================== */

.tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(0,102,255,0.1);
  border: 1px solid rgba(0,102,255,0.25);
  color: var(--clr-cyan);
}

.tag--green {
  background: rgba(16,185,129,0.1);
  border-color: rgba(16,185,129,0.25);
  color: #34d399;
}

/* ==========================================================================
   PROCESS STEPS
   ========================================================================== */

.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  position: relative;
}

@media (max-width: 768px) {
  .process__steps { grid-template-columns: 1fr; }
}

.process__step {
  text-align: center;
  padding: var(--space-xl);
}

.process__step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: var(--clr-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
}

.process__step-title {
  font-size: 1rem;
  margin-bottom: var(--space-sm);
  color: var(--clr-white);
}

.process__step-desc {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   TIMELINE (Founder page)
   ========================================================================== */

.timeline {
  position: relative;
  padding-left: var(--space-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--clr-electric), var(--clr-cyan), transparent);
}

.timeline__item {
  position: relative;
  padding-left: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-xl) - 5px);
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--grad-primary);
  border: 2px solid var(--clr-bg-dark);
}

.timeline__period {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--clr-cyan);
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.timeline__company {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: var(--space-xs);
}

.timeline__role {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--clr-electric);
  margin-bottom: var(--space-sm);
}

.timeline__desc {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin: 0;
}

/* ==========================================================================
   TECH STACK PILLS
   ========================================================================== */

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tech-pill {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--clr-text-muted);
  transition: all var(--transition-base);
}

.tech-pill:hover {
  background: rgba(0,102,255,0.1);
  border-color: rgba(0,102,255,0.3);
  color: var(--clr-white);
}

/* ==========================================================================
   CASE STUDY CARDS
   ========================================================================== */

.cs-card {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.cs-card:hover {
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0,102,255,0.1);
  transform: translateY(-2px);
}

.cs-card__header {
  padding: var(--space-xl) var(--space-2xl) var(--space-lg);
  border-bottom: 1px solid var(--clr-border);
  background: rgba(0,102,255,0.05);
}

.cs-card__tag {
  margin-bottom: var(--space-sm);
}

.cs-card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.cs-card__client {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}

.cs-card__body {
  padding: var(--space-xl) var(--space-2xl);
}

.cs-card__section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-cyan);
  margin-bottom: var(--space-sm);
}

.cs-card__text {
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

/* ==========================================================================
   CONTACT FORM
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-text-primary);
  margin-bottom: var(--space-sm);
}

.form-control {
  display: block;
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--clr-text-primary);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  outline: none;
}

.form-control::placeholder { color: var(--clr-text-muted); }

.form-control:focus {
  border-color: var(--clr-electric);
  box-shadow: 0 0 0 3px rgba(0,102,255,0.15);
  background: rgba(0,102,255,0.03);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

.form-error {
  font-size: 0.8125rem;
  color: #f87171;
  margin-top: var(--space-xs);
}

.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

.alert--success {
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  color: #34d399;
}

.alert--error {
  background: rgba(248,113,113,0.1);
  border: 1px solid rgba(248,113,113,0.3);
  color: #f87171;
}

/* ==========================================================================
   CONTACT INFO CARDS
   ========================================================================== */

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--clr-border);
}

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

.contact-info__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background: rgba(0,102,255,0.1);
  border: 1px solid rgba(0,102,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-xs);
}

.contact-info__value {
  font-size: 0.9375rem;
  color: var(--clr-text-primary);
  font-weight: 500;
}

/* ==========================================================================
   FOUNDER PAGE
   ========================================================================== */

.founder-profile {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-3xl);
  align-items: start;
}

@media (max-width: 768px) {
  .founder-profile { grid-template-columns: 1fr; }
}

.founder-avatar {
  width: 100%;
  aspect-ratio: 1;
  max-width: 280px;
  border-radius: var(--radius-xl);
  background: var(--grad-card);
  border: 2px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--clr-electric);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.founder-avatar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 30%, rgba(0,102,255,0.15) 0%, transparent 70%);
}

.expertise-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.footer {
  background: var(--clr-bg-dark);
  border-top: 1px solid var(--clr-border);
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

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

.footer__logo { margin-bottom: var(--space-lg); }

.footer__tagline {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.footer__description {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

.footer__col-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--clr-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  transition: color var(--transition-base);
}

.footer__link:hover { color: var(--clr-white); }

.footer__bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer__copyright {
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  margin: 0;
}

.footer__legal {
  display: flex;
  gap: var(--space-lg);
}

.footer__legal a {
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  transition: color var(--transition-base);
}

.footer__legal a:hover { color: var(--clr-white); }

/* ==========================================================================
   DIFFERENTIATORS LIST
   ========================================================================== */

.diff-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.diff-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
}

.diff-list__item::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grad-primary);
  flex-shrink: 0;
}

/* ==========================================================================
   BREADCRUMB
   ========================================================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--space-xl);
}

.breadcrumb a { color: var(--clr-electric); }
.breadcrumb span { opacity: 0.5; }

/* ==========================================================================
   SCROLLBAR
   ========================================================================== */

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg-dark); }
::-webkit-scrollbar-thumb { background: rgba(0,102,255,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-electric); }

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.mt-0  { margin-top: 0; }
.mb-0  { margin-bottom: 0; }
.mt-md { margin-top: var(--space-md); }
.mb-md { margin-bottom: var(--space-md); }
.mt-xl { margin-top: var(--space-xl); }
.mb-xl { margin-bottom: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

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

.main-content {
  padding-top: var(--navbar-h);
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

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

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.animate-fade-up { animation: fadeInUp 0.6s ease forwards; }
.animate-fade    { animation: fadeIn  0.5s ease forwards; }

/* ==========================================================================
   RESPONSIVE HELPERS
   ========================================================================== */

@media (max-width: 768px) {
  section { padding: var(--space-2xl) 0; }
  .hero { min-height: auto; padding: calc(var(--navbar-h) + var(--space-3xl)) 0 var(--space-3xl); }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .footer__grid { gap: var(--space-2xl); }
  .cta-section__actions { flex-direction: column; align-items: center; }
}

/* ==========================================================================
   PRINT
   ========================================================================== */

@media print {
  .navbar, .footer, .cta-section { display: none; }
  .main-content { padding-top: 0; }
}