/* ============================================
   NEXUS FINTECH - GLOBAL STYLES
   
   BRAND COLORS (from logo):
   - Background: #0b1120 (deep dark navy)
   - Text: #e5e7eb (platinum/silver)
   - Accent: #60a5fa (blue glow)
   
   FONTS:
   - H1 Headlines: Michroma (premium/industrial)
   - H2/H3/H4: Exo 2 (tech/readable)
   - Body: Inter
   ============================================ */

/* === CSS VARIABLES === */
:root {
  /* Backgrounds - Dark Theme */
  --bg-primary: #0b1120;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  
  /* Text - Platinum/Silver Cascade (brightest to darkest) */
  --text-primary: #ffffff;
  --text-bright: #e5e7eb;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;
  
  /* Accent */
  --accent-blue: #60a5fa;
  --accent-blue-dark: #3b82f6;
  
  /* Borders */
  --border-color: #374151;
  --border-glow: rgba(96, 165, 250, 0.4);
  
  /* Fonts */
  --font-h1: 'Michroma', sans-serif;
  --font-display: 'Exo 2', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  
  /* Layout */
  --container-max: 1140px;
  --container-narrow: 720px;
  --header-height: 72px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  font-family: var(--font-h1);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h3 {
  font-size: 1.375rem;
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  text-align: justify;
}

p:last-child {
  margin-bottom: 0;
}

strong {
  color: var(--text-bright);
  font-weight: 600;
}

/* === LAYOUT === */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--space-2xl) 0;
}

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

/* === HEADER === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(11, 17, 32, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: box-shadow var(--transition-base);
}

.header--scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

/* === LOGO === */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo img {
  height: 40px;
  width: auto;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.logo-text span {
  font-weight: 400;
  color: var(--text-muted);
}

.logo-img {
  height: 100px;
  width: auto;
}

.logo-img--footer {
  height: 60px;
  margin-bottom: var(--space-sm);
}

/* === NAVIGATION === */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
  color: var(--text-primary);
}

.nav__cta {
  padding: 0.625rem 1.25rem;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-dark));
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.nav__cta:hover {
  box-shadow: 0 0 20px var(--border-glow);
  transform: translateY(-1px);
}

/* === MOBILE NAV TOGGLE === */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  z-index: 101;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* === HERO === */
.hero {
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-2xl);
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero__content {
  max-width: 800px;
}

.hero__tagline {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: var(--space-md);
}

.hero h1 {
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 700px;
}

/* === PAGE HEADER === */
.page-header {
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
  margin-bottom: var(--space-sm);
}

.page-header p {
  font-size: 1.125rem;
  max-width: 700px;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-dark));
  color: var(--text-primary);
}

.btn--primary:hover {
  box-shadow: 0 0 30px var(--border-glow);
  transform: translateY(-2px);
}

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

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

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* === CARDS === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.card {
  padding: var(--space-lg);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 0 30px rgba(96, 165, 250, 0.1);
  transform: translateY(-4px);
}

.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--accent-blue);
  filter: drop-shadow(0 0 8px rgba(96, 165, 250, 0.4));
}

.card h3 {
  margin-bottom: var(--space-xs);
}

.card p {
  color: var(--text-secondary);
  text-align: left;
}

/* === SCENARIO GRID (Home Page) === */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.scenario {
  padding: var(--space-lg);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  border-top: 3px solid var(--accent-blue);
}

.scenario h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

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

/* === STATE GRID (Sectors Page) === */
.state-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.state {
  padding: var(--space-xs) var(--space-md);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-bright);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* === SECTION HEADER === */
.section-header {
  max-width: 700px;
  margin-bottom: var(--space-xl);
}

.section-header.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  font-size: 1.125rem;
}

/* === PAIN POINTS === */
.pain-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.pain-point {
  padding: var(--space-md) var(--space-lg);
  background-color: var(--bg-secondary);
  border-left: 3px solid var(--accent-blue);
  color: var(--text-bright);
  font-size: 1rem;
  line-height: 1.6;
}

/* === NUMBERED LIST === */
.numbered-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.numbered-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.numbered-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.numbered-item__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: #d1d5db;
  line-height: 1;
  text-shadow: 0 0 20px rgba(209, 213, 219, 0.3);
}

.numbered-item h3 {
  margin-bottom: var(--space-xs);
}

.numbered-item p {
  color: var(--text-bright);
}

/* === CREDENTIALS === */
.credentials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

.credential {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.credential:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 0 15px rgba(96, 165, 250, 0.1);
}

.credential svg {
  width: 24px;
  height: 24px;
  color: var(--accent-blue);
  flex-shrink: 0;
  filter: drop-shadow(0 0 4px rgba(96, 165, 250, 0.5));
}

.credential span {
  font-size: 0.9375rem;
  color: var(--text-bright);
}

/* === SERVICE SECTION === */
.service-section {
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--border-color);
}

.service-section:last-of-type {
  border-bottom: none;
}

.service-section h2 {
  margin-bottom: var(--space-sm);
}

.service-section > .container > p {
  margin-bottom: var(--space-lg);
  max-width: 800px;
}

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

.service-card {
  padding: var(--space-md);
  background-color: var(--bg-tertiary);
  border-radius: 6px;
}

.service-card h4 {
  margin-bottom: var(--space-xs);
  color: var(--text-bright);
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  text-align: left;
}

/* === CONTACT FORM === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.contact-info h2 {
  margin-bottom: var(--space-md);
}

.contact-info p {
  margin-bottom: var(--space-lg);
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.contact-detail svg {
  width: 20px;
  height: 20px;
  color: var(--accent-blue);
}

.contact-detail span {
  color: var(--text-bright);
}

.contact-form {
  background-color: var(--bg-secondary);
  padding: var(--space-lg);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

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

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-bright);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

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

/* === CALENDLY EMBED === */
.calendly-section {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.calendly-section h2 {
  margin-bottom: var(--space-sm);
}

.calendly-section > p {
  margin-bottom: var(--space-lg);
}

.calendly-inline-widget {
  min-height: 650px;
  border-radius: 8px;
  overflow: hidden;
}

/* === CTA SECTION === */
.cta-section {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.cta-section h2 {
  margin-bottom: var(--space-sm);
}

.cta-section p {
  margin-bottom: var(--space-lg);
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* === FOOTER === */
.footer {
  padding: var(--space-xl) 0;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-lg);
}

.footer__brand {
  max-width: 300px;
}

.footer__brand .logo-text {
  margin-bottom: var(--space-sm);
}

.footer__brand p {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

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

.footer__column h4 {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.footer__column a {
  font-size: 0.9375rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.footer__column li {
  margin-bottom: var(--space-xs);
}

.footer__bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* === THANK YOU / 404 PAGES === */
.message-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-lg);
}

.message-page__content {
  max-width: 500px;
}

.message-page h1 {
  margin-bottom: var(--space-md);
}

.message-page p {
  margin-bottom: var(--space-lg);
  font-size: 1.125rem;
}

.message-page .btn {
  margin: 0 var(--space-xs);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-primary);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-lg);
    transition: right var(--transition-base);
  }
  
  .nav--open {
    right: 0;
  }
  
  .nav__link {
    font-size: 1.25rem;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + var(--space-xl));
    padding-bottom: var(--space-xl);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer__links {
    flex-direction: column;
    gap: var(--space-lg);
  }
  
  .numbered-item {
    grid-template-columns: 1fr;
  }
  
  .numbered-item__number {
    font-size: 2rem;
  }
  
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .scenario-grid {
    grid-template-columns: 1fr;
  }
}

/* === UTILITY CLASSES === */
.text-center {
  text-align: center;
}

.mt-sm {
  margin-top: var(--space-sm);
}

.mt-md {
  margin-top: var(--space-md);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mt-xl {
  margin-top: var(--space-xl);
}

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

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

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

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

/* === SCENARIO BOX (Service Pages) === */
.scenario-box {
  padding: var(--space-lg);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-blue);
  border-radius: 8px;
}

.scenario-box h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  color: var(--accent-blue);
}

.scenario-box p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.scenario-box p:last-child {
  margin-bottom: 0;
}

/* === SERVICE LIST (Service Pages) === */
.service-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.service-list__item {
  padding: var(--space-md);
  background-color: var(--bg-tertiary);
  border-radius: 6px;
  border-left: 3px solid var(--accent-blue);
}

.service-list__item h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
  color: var(--text-bright);
}

.service-list__item p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  text-align: left;
}

/* === CARD LINKS (Clickable Cards) === */
.card--link {
  display: block;
  text-decoration: none;
  cursor: pointer;
}

.card--link h3 {
  transition: color var(--transition-fast);
}

.card--link:hover h3 {
  color: var(--accent-blue);
}

/* === SMALL CARD GRID (Other Services) === */
.card-grid--small {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}

.card-grid--small .card {
  padding: var(--space-md);
}

.card-grid--small .card h3 {
  font-size: 1rem;
  margin-bottom: 0;
}