/* ========================================
   Fiscorex LLC - Static Website Styles
   ======================================== */

/* CSS Custom Properties (Design Tokens) */
:root {
  /* Colors - Emerald/Teal Variant */
  --color-primary: #10b981;
  --color-primary-dark: #059669;
  --color-primary-light: #34d399;
  --color-navy: #1a1a2e;
  --color-navy-light: #16213e;
  --color-slate: #64748b;
  --color-slate-light: #94a3b8;
  --color-background: #f8fafc;
  --color-card: #ffffff;
  --color-border: #e2e8f0;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-white: #ffffff;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-14: 3.5rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-emerald: 0 10px 25px -5px rgb(16 185 129 / 0.25);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

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

.hidden {
  display: none !important;
}

/* ========================================
   Layout Components
   ======================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-narrow {
  max-width: 768px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
}

.btn-accent {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-emerald);
}

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

.btn-full {
  width: 100%;
}

/* ========================================
   Header
   ======================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.logo {
  flex-shrink: 0;
}

.logo-img {
  height: 56px;
  width: auto;
}

.nav-desktop {
  display: none;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-slate);
  transition: color var(--transition-fast);
}

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

.header-cta {
  display: none;
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-navy);
}

.mobile-menu {
  position: absolute;
  top: 80px;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6) var(--space-4);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav-link {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--color-navy);
  padding: var(--space-2) 0;
}

.mobile-cta {
  margin-top: var(--space-4);
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
  
  .header-cta {
    display: inline-flex;
  }
  
  .mobile-menu-btn {
    display: none;
  }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  padding: calc(80px + var(--space-16)) 0 var(--space-20);
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 50%, #064e3b 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-container {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.hero-content {
  max-width: 800px;
}

.hero-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero-subtitle {
  margin-top: var(--space-6);
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  max-width: 640px;
  text-wrap: pretty;
}

.hero .btn {
  margin-top: var(--space-8);
}

.hero-metrics {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-14);
}

.metric-card {
  padding: var(--space-5);
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(8px);
}

.metric-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(52, 211, 153, 0.2);
  border-radius: var(--radius-xl);
  color: var(--color-primary-light);
}

.metric-title {
  margin-top: var(--space-4);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1.4;
}

.metric-text {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

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

@media (min-width: 768px) {
  .hero {
    padding: calc(80px + var(--space-24)) 0 var(--space-24);
  }
  
  .hero-title {
    font-size: var(--font-size-5xl);
  }
}

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

/* ========================================
   Section Styles
   ======================================== */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.section-subtitle {
  margin-top: var(--space-4);
  font-size: var(--font-size-lg);
  color: var(--color-slate);
  text-wrap: pretty;
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--font-size-4xl);
  }
}

/* ========================================
   Services Section
   ======================================== */
.services {
  padding: var(--space-20) 0;
  background-color: var(--color-white);
}

.services-grid {
  display: grid;
  gap: var(--space-8);
  margin-top: var(--space-14);
}

.service-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-8);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-base);
}

.service-card:hover {
  border-color: #a7f3d0;
  box-shadow: 0 10px 25px -5px rgb(16 185 129 / 0.1);
  transform: translateY(-2px);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  border-radius: var(--radius-2xl);
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-title {
  margin-top: var(--space-6);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-navy);
}

.service-text {
  margin-top: var(--space-3);
  color: var(--color-slate);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ========================================
   About Section
   ======================================== */
.about {
  padding: var(--space-20) 0;
  background-color: var(--color-background);
}

.about-grid {
  display: grid;
  gap: var(--space-12);
  align-items: center;
}

.about-content {
  order: 2;
}

.about-tagline {
  margin-top: var(--space-3);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-primary);
}

.about-text {
  margin-top: var(--space-6);
  color: var(--color-slate);
  line-height: 1.7;
}

.about .btn {
  margin-top: var(--space-8);
}

.about-image {
  order: 1;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
  
  .about-content {
    order: 1;
  }
  
  .about-image {
    order: 2;
  }
}

/* ========================================
   Mechanics Section
   ======================================== */
.mechanics {
  padding: var(--space-20) 0;
  background-color: var(--color-white);
}

.mechanics-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-14);
}

.mechanics-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-base);
}

.mechanics-card:hover {
  border-color: #a7f3d0;
  box-shadow: 0 10px 25px -5px rgb(16 185 129 / 0.1);
}

.mechanics-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mechanics-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: #ecfdf5;
  border-radius: var(--radius-xl);
  color: var(--color-primary);
}

.mechanics-number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

.mechanics-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-navy);
}

.mechanics-text {
  font-size: var(--font-size-sm);
  color: var(--color-slate);
  line-height: 1.6;
}

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

/* ========================================
   Verticals Section
   ======================================== */
.verticals {
  padding: var(--space-20) 0;
  background-color: var(--color-background);
}

.verticals-grid {
  display: grid;
  gap: var(--space-8);
  margin-top: var(--space-14);
}

.vertical-card {
  overflow: hidden;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.vertical-card:hover {
  border-color: #a7f3d0;
  box-shadow: var(--shadow-lg);
}

.vertical-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.vertical-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.vertical-card:hover .vertical-image img {
  transform: scale(1.05);
}

.vertical-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 26, 46, 0.85), transparent 60%);
}

.vertical-title {
  position: absolute;
  bottom: var(--space-4);
  left: var(--space-5);
  right: var(--space-5);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
}

.vertical-content {
  padding: var(--space-6);
}

.vertical-content p {
  color: var(--color-slate);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .verticals-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
  padding: var(--space-20) 0;
  background-color: var(--color-white);
}

.faq-list {
  margin-top: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.faq-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.faq-item.active {
  border-color: #a7f3d0;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5);
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-navy);
  background: none;
  cursor: pointer;
}

.faq-question span {
  flex: 1;
  padding-right: var(--space-4);
}

.faq-chevron {
  flex-shrink: 0;
  color: var(--color-slate);
  transition: transform var(--transition-base);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 var(--space-5) var(--space-5);
  color: var(--color-slate);
  line-height: 1.7;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 50%, #064e3b 100%);
  color: var(--color-white);
}

.footer-grid {
  display: grid;
  gap: var(--space-12);
}

.footer-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  text-wrap: balance;
}

.footer-text {
  margin-top: var(--space-4);
  color: rgba(255, 255, 255, 0.8);
}

.contact-form {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: rgba(255, 255, 255, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.footer-logo img {
  height: 48px;
  width: auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: var(--color-white);
}

.contact-link svg {
  flex-shrink: 0;
  color: var(--color-primary-light);
}

.footer-bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

@media (min-width: 768px) {
  .footer-title {
    font-size: var(--font-size-3xl);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
  
  .footer-contact {
    align-items: flex-end;
    text-align: right;
  }
  
  .contact-info {
    align-items: flex-end;
  }
  
  .contact-link {
    justify-content: flex-end;
  }
}

/* ========================================
   Utility Classes
   ======================================== */
@media (max-width: 767px) {
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 768px) {
  .hide-desktop {
    display: none !important;
  }
}