/* =====================================================
   Photogrammetry Point Cloud - Global Styles
   ===================================================== */

/* ===== CSS Custom Properties (Design Tokens) ===== */
:root {
  /* Colours */
  --color-bg: #eef3f8;
  --color-surface: #f7fbff;
  --color-text: #10243a;
  --color-text-muted: #5f6f88;
  --color-primary: #0b5aa3;
  --color-primary-hover: #094978;
  --color-accent: #1377b8;
  --color-border: rgba(11, 90, 163, 0.15);
  --color-border-light: rgba(11, 90, 163, 0.1);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.88);
  --glass-border: rgba(255, 255, 255, 0.65);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  
  /* Spacing */
  --space-xs: 0.5rem;    /* 8px */
  --space-sm: 1rem;      /* 16px */
  --space-md: 1.5rem;    /* 24px */
  --space-lg: 2rem;      /* 32px */
  --space-xl: 3rem;      /* 48px */
  --space-2xl: 4rem;     /* 64px */
  --space-3xl: 6rem;     /* 96px */
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-size-base: 1rem;        /* 16px */
  --font-size-sm: 0.875rem;      /* 14px */
  --font-size-lg: 1.125rem;      /* 18px */
  --font-size-xl: 1.25rem;       /* 20px */
  --font-size-2xl: 1.5rem;       /* 24px */
  --font-size-3xl: 1.875rem;     /* 30px */
  --font-size-4xl: 2.25rem;      /* 36px */
  --font-size-5xl: 3rem;         /* 48px */
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Layout */
  --max-width-content: 1200px;
  --max-width-text: 65ch;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  
  /* Transitions */
  --transition: 200ms ease;
  --transition-slow: 400ms ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: radial-gradient(circle at 15% 10%, rgba(11, 90, 163, 0.08), transparent 20%),
                    radial-gradient(circle at 80% 15%, rgba(8, 145, 178, 0.06), transparent 18%);
  background-repeat: no-repeat;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.lead {
  font-size: var(--font-size-xl);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
}

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

/* ===== Layout Containers ===== */
.container {
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: var(--max-width-text);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

section {
  padding: var(--space-3xl) 0;
}

section.section-light {
  background-color: #f6f9ff;
  background-image: url("data:image/svg+xml,%3Csvg width='300' height='300' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cstyle%3E circle %7B fill: %230B5AA3; %7D %3C/style%3E%3C/defs%3E%3Ccircle cx='45' cy='28' r='2.5' opacity='0.08'/%3E%3Ccircle cx='112' cy='67' r='4' opacity='0.12'/%3E%3Ccircle cx='78' cy='145' r='3' opacity='0.09'/%3E%3Ccircle cx='234' cy='89' r='2' opacity='0.07'/%3E%3Ccircle cx='167' cy='234' r='3.5' opacity='0.11'/%3E%3Ccircle cx='289' cy='178' r='2.5' opacity='0.08'/%3E%3Ccircle cx='201' cy='45' r='4.5' opacity='0.13'/%3E%3Ccircle cx='23' cy='198' r='3' opacity='0.1'/%3E%3Ccircle cx='156' cy='12' r='2' opacity='0.07'/%3E%3Ccircle cx='267' cy='267' r='3.5' opacity='0.11'/%3E%3Ccircle cx='89' cy='223' r='2.5' opacity='0.09'/%3E%3Ccircle cx='145' cy='156' r='5' opacity='0.14'/%3E%3Ccircle cx='12' cy='112' r='2' opacity='0.06'/%3E%3Ccircle cx='223' cy='189' r='4' opacity='0.12'/%3E%3Ccircle cx='178' cy='78' r='3' opacity='0.1'/%3E%3Ccircle cx='34' cy='289' r='2.5' opacity='0.08'/%3E%3Ccircle cx='256' cy='23' r='3.5' opacity='0.11'/%3E%3Ccircle cx='123' cy='267' r='2' opacity='0.07'/%3E%3Ccircle cx='67' cy='134' r='4.5' opacity='0.13'/%3E%3Ccircle cx='189' cy='123' r='3' opacity='0.09'/%3E%3Ccircle cx='245' cy='156' r='2.5' opacity='0.08'/%3E%3Ccircle cx='98' cy='45' r='3.5' opacity='0.11'/%3E%3Ccircle cx='278' cy='98' r='2' opacity='0.06'/%3E%3Ccircle cx='134' cy='201' r='4' opacity='0.12'/%3E%3Ccircle cx='56' cy='178' r='3' opacity='0.1'/%3E%3C/svg%3E");
  background-size: 300px 300px;
  background-repeat: repeat;
}

section.section-alt {
  background-color: #eef4fb;
  background-image: url("data:image/svg+xml,%3Csvg width='400' height='400' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cstyle%3E line %7B stroke: %230B5AA3; stroke-width: 0.8; opacity: 0.07; %7D %3C/style%3E%3C/defs%3E%3Cline x1='45' y1='67' x2='123' y2='34'/%3E%3Cline x1='123' y1='34' x2='189' y2='89'/%3E%3Cline x1='189' y1='89' x2='45' y2='67'/%3E%3Cline x1='189' y1='89' x2='245' y2='156'/%3E%3Cline x1='245' y1='156' x2='167' y2='178'/%3E%3Cline x1='167' y1='178' x2='189' y2='89'/%3E%3Cline x1='45' y1='67' x2='78' y2='145'/%3E%3Cline x1='78' y1='145' x2='167' y2='178'/%3E%3Cline x1='167' y1='178' x2='45' y2='67'/%3E%3Cline x1='78' y1='145' x2='23' y2='223'/%3E%3Cline x1='23' y1='223' x2='89' y2='267'/%3E%3Cline x1='89' y1='267' x2='78' y2='145'/%3E%3Cline x1='167' y1='178' x2='89' y2='267'/%3E%3Cline x1='89' y1='267' x2='156' y2='289'/%3E%3Cline x1='156' y1='289' x2='167' y2='178'/%3E%3Cline x1='167' y1='178' x2='245' y2='234'/%3E%3Cline x1='245' y1='234' x2='156' y2='289'/%3E%3Cline x1='245' y1='156' x2='312' y2='123'/%3E%3Cline x1='312' y1='123' x2='356' y2='178'/%3E%3Cline x1='356' y1='178' x2='245' y2='156'/%3E%3Cline x1='245' y1='156' x2='356' y2='178'/%3E%3Cline x1='356' y1='178' x2='289' y2='234'/%3E%3Cline x1='289' y1='234' x2='245' y2='156'/%3E%3Cline x1='245' y1='234' x2='289' y2='234'/%3E%3Cline x1='289' y1='234' x2='312' y2='312'/%3E%3Cline x1='312' y1='312' x2='245' y2='234'/%3E%3Cline x1='123' y1='34' x2='201' y2='12'/%3E%3Cline x1='201' y1='12' x2='267' y2='56'/%3E%3Cline x1='267' y1='56' x2='123' y2='34'/%3E%3Cline x1='189' y1='89' x2='267' y2='56'/%3E%3Cline x1='267' y1='56' x2='312' y2='123'/%3E%3Cline x1='312' y1='123' x2='189' y2='89'/%3E%3Cline x1='23' y1='223' x2='12' y2='312'/%3E%3Cline x1='12' y1='312' x2='67' y2='356'/%3E%3Cline x1='67' y1='356' x2='23' y2='223'/%3E%3Cline x1='89' y1='267' x2='67' y2='356'/%3E%3Cline x1='67' y1='356' x2='134' y2='378'/%3E%3Cline x1='134' y1='378' x2='89' y2='267'/%3E%3Cline x1='156' y1='289' x2='134' y2='378'/%3E%3C/svg%3E");
  background-size: 400px 400px;
  background-repeat: repeat;
}

/* ===== Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* Fallback for browsers without backdrop-filter support */
@supports not (backdrop-filter: blur(12px)) {
  .site-header {
    background: rgba(255, 255, 255, 0.844);
    border-bottom-color: rgba(255, 255, 255, 0.7);
  }
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  font-size: var(--font-size-lg);
  color: var(--color-text);
}


.logo img {
  height: 80px;
  width: auto;
}

/* Mobile */
@media only screen and (max-width: 1090px) {
    .logo img {
        height: 60px;
    }
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--color-text);
}

.logo-dot {
  color: var(--color-primary);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-xs);
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

.main-nav ul {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.main-nav a {
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  padding: var(--space-xs) 0;
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
}

.nav-cta {
  background: var(--color-primary);
  color: white !important;
  padding: var(--space-xs) var(--space-md) !important;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: background var(--transition);
}

.nav-cta:hover {
  background: var(--color-primary-hover);
}

.nav-cta::after {
  display: none;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, #e9f2fb 0%, #ffffff 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: 
    linear-gradient(45deg, transparent 48%, rgba(10, 110, 189, 0.03) 49%, rgba(10, 110, 189, 0.03) 51%, transparent 52%),
    linear-gradient(-45deg, transparent 48%, rgba(8, 145, 178, 0.02) 49%, rgba(8, 145, 178, 0.02) 51%, transparent 52%);
  background-size: 80px 80px;
  opacity: 0.4;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 700px;
}

.hero h1 {
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero .lead {
  margin-bottom: var(--space-xl);
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  text-align: center;
  border-radius: var(--border-radius);
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

.btn-large {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-lg);
}

.leaflet-region-label {
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  border: 1px solid rgba(11, 90, 163, 0.18);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  font-size: 0.9rem;
  font-weight: 700;
}

/* ===== Cards ===== */
.card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-slow);
  border: 1px solid var(--color-border-light);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* Fallback for browsers without backdrop-filter support */
@supports not (backdrop-filter: blur(12px)) {
  .card-glass {
    background: rgba(255, 255, 255, 0.94);
  }
}

.card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: white;
  font-size: var(--font-size-2xl);
  font-weight: 700;
}

.card h3 {
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-xl);
}

.card p {
  margin-bottom: var(--space-md);
  font-size: var(--font-size-base);
}

.card ul {
  list-style: none;
  padding: 0;
}

.card ul li {
  padding-left: var(--space-md);
  margin-bottom: var(--space-xs);
  position: relative;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 600;
}

/* ===== Grid Layouts ===== */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ===== Section Headers ===== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

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

.section-header .lead {
  max-width: 700px;
  margin: 0 auto;
}

.section-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-primary);
  color: white;
  border-radius: 999px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-md);
}

/* ===== Value Props ===== */
.value-props {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

.value-prop {
  text-align: center;
  padding: var(--space-lg);
}

.value-prop-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  color: white;
  font-size: var(--font-size-3xl);
}

.value-prop h3 {
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-xl);
}

.value-prop p {
  font-size: var(--font-size-base);
}

/* ===== Process Steps ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-number {
  width: 60px;
  height: 60px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0 auto var(--space-md);
  box-shadow: var(--shadow-md);
}

.process-step h3 {
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-xl);
}

.process-step p {
  font-size: var(--font-size-base);
}

/* ===== Industries Strip ===== */
.industries-strip {
  background: var(--color-surface);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.industries-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}

.industry-tag {
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition);
}

.industry-tag:hover {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* ===== FAQ Section ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: var(--space-lg);
  font-weight: 600;
  font-size: var(--font-size-lg);
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: background var(--transition);
}

.faq-question:hover {
  background: var(--color-bg);
}

.faq-question::after {
  content: '+';
  font-size: var(--font-size-2xl);
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

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

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

.faq-answer-content {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-text-muted);
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  text-align: center;
}

.cta-section h2,
.cta-section p {
  color: white;
}

.cta-section .btn-secondary {
  background: white;
  color: var(--color-primary);
  border-color: white;
}

.cta-section .btn-secondary:hover {
  background: transparent;
  color: white;
}

/* ===== Portfolio Grid ===== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.portfolio-item {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-slow);
  border: 1px solid var(--color-border-light);
}

.portfolio-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.portfolio-image {
  width: 100%;
  height: 240px;
  background: linear-gradient(135deg, #E8EBED 0%, #D0D7DE 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

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

.portfolio-content h3 {
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-xl);
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.portfolio-tag {
  padding: 4px var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ===== Contact Form ===== */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--color-text);
  color: var(--color-border);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h4 {
  color: white;
  margin-bottom: var(--space-md);
  font-size: var(--font-size-lg);
}

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

.footer-section a {
  /* color: var(--color-border); */
  color: lightgrey;
  transition: color var(--transition);
}

.footer-section a:hover {
  color: white;
}

.footer-logo {
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ===== Placeholder Image ===== */
.placeholder-image {
  width: 100%;
  height: 300px;
  background: linear-gradient(135deg, #E8EBED 0%, #D0D7DE 100%);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-lg);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.animate-in.visible {
  animation-play-state: running;
}

/* Stagger animation delays */
.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.2s; }
.animate-in:nth-child(3) { animation-delay: 0.3s; }
.animate-in:nth-child(4) { animation-delay: 0.4s; }

/* ===== Utility Classes ===== */
.text-center {
  text-align: center;
}

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

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

/* ===== Responsive Design ===== */
@media (max-width: 1090px) {
  :root {
    --font-size-5xl: 2.25rem;  /* 36px */
    --font-size-4xl: 1.875rem; /* 30px */
    --font-size-3xl: 1.5rem;   /* 24px */
  }
  
  section {
    padding: var(--space-2xl) 0;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  /* Mobile Navigation */
  .nav-toggle {
    display: flex;
  }
  
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
  }
  
  .main-nav.active {
    max-height: calc(100vh - 80px);
    overflow-y: auto;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: var(--space-md) 0;
  }
  
  .main-nav li {
    width: 100%;
    border-bottom: 1px solid var(--color-border-light);
  }
  
  .main-nav li:last-child {
    border-bottom: none;
  }
  
  .main-nav a {
    display: block;
    padding: var(--space-md) var(--space-lg);
  }
  
  .nav-cta {
    margin: var(--space-md) var(--space-lg);
    display: block;
    text-align: center;
  }
  
  /* Hero */
  .hero {
    padding: var(--space-2xl) 0;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  /* Grid adjustments */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .value-props {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.875rem; /* 30px */
  }
  
  .section-header h2 {
    font-size: 1.5rem; /* 24px */
  }
  
  .btn-large {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
  }
}