/* GrantForge Brand Identity CSS
   Version 1.0
   Created for GrantForge SaaS Platform
*/

/* ========== ROOT VARIABLES ========== */
:root {
  /* Brand Colors */
  --color-navy: #12364E;       /* Primary */
  --color-teal: #11B6A2;       /* Accent */
  --color-sky: #31A4FF;        /* Highlight/CTA */
  --color-sand: #E7D5C7;       /* Human-centered balance */
  --color-slate: #7B8F9C;      /* UI neutrals */
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-light: #F5F7FA;
  --color-medium: #E1E5EB;
  --color-dark: #2D3748;
  
  /* Typography */
  --font-heading: 'Satoshi Variable', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-xxl: 3rem;     /* 48px */
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
}

/* ========== TYPOGRAPHY ========== */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-dark);
  background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-navy);
  margin-top: 0;
}

h1 {
  font-size: 3rem;      /* 48px */
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.25rem;   /* 36px */
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.75rem;   /* 28px */
}

h4 {
  font-size: 1.5rem;    /* 24px */
}

h5 {
  font-size: 1.25rem;   /* 20px */
  font-weight: 600;
}

h6 {
  font-size: 1rem;      /* 16px */
  font-weight: 600;
}

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

.text-lg {
  font-size: 1.125rem;  /* 18px */
}

.text-sm {
  font-size: 0.875rem;  /* 14px */
}

.text-xs {
  font-size: 0.75rem;   /* 12px */
}

.text-navy { color: var(--color-navy); }
.text-teal { color: var(--color-teal); }
.text-sky { color: var(--color-sky); }
.text-sand { color: var(--color-sand); }
.text-slate { color: var(--color-slate); }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
}

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

.btn-primary:hover, .btn-primary:focus {
  background-color: #1E96F3;
  box-shadow: 0 4px 12px rgba(49, 164, 255, 0.3);
  transform: translateY(-2px);
}

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

.btn-secondary:hover, .btn-secondary:focus {
  background-color: #0A2A40;
  box-shadow: 0 4px 12px rgba(18, 54, 78, 0.3);
  transform: translateY(-2px);
}

.btn-tertiary {
  background-color: transparent;
  color: var(--color-navy);
  border: 2px solid var(--color-navy);
}

.btn-tertiary:hover, .btn-tertiary:focus {
  background-color: rgba(18, 54, 78, 0.05);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ========== LAYOUT ========== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -1rem;
}

.col {
  flex: 1;
  padding: 0 1rem;
}

.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* Spacing utilities */
.m-0 { margin: 0; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.ml-0 { margin-left: 0; }
.mr-0 { margin-right: 0; }

.m-1 { margin: var(--space-xs); }
.mt-1 { margin-top: var(--space-xs); }
.mb-1 { margin-bottom: var(--space-xs); }
.ml-1 { margin-left: var(--space-xs); }
.mr-1 { margin-right: var(--space-xs); }

.m-2 { margin: var(--space-sm); }
.mt-2 { margin-top: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-sm); }
.ml-2 { margin-left: var(--space-sm); }
.mr-2 { margin-right: var(--space-sm); }

.m-3 { margin: var(--space-md); }
.mt-3 { margin-top: var(--space-md); }
.mb-3 { margin-bottom: var(--space-md); }
.ml-3 { margin-left: var(--space-md); }
.mr-3 { margin-right: var(--space-md); }

.m-4 { margin: var(--space-lg); }
.mt-4 { margin-top: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-lg); }
.ml-4 { margin-left: var(--space-lg); }
.mr-4 { margin-right: var(--space-lg); }

.m-5 { margin: var(--space-xl); }
.mt-5 { margin-top: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-xl); }
.ml-5 { margin-left: var(--space-xl); }
.mr-5 { margin-right: var(--space-xl); }

.m-6 { margin: var(--space-xxl); }
.mt-6 { margin-top: var(--space-xxl); }
.mb-6 { margin-bottom: var(--space-xxl); }
.ml-6 { margin-left: var(--space-xxl); }
.mr-6 { margin-right: var(--space-xxl); }

/* Padding utilities follow the same pattern */
.p-0 { padding: 0; }
.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }
.pl-0 { padding-left: 0; }
.pr-0 { padding-right: 0; }

.p-1 { padding: var(--space-xs); }
.pt-1 { padding-top: var(--space-xs); }
.pb-1 { padding-bottom: var(--space-xs); }
.pl-1 { padding-left: var(--space-xs); }
.pr-1 { padding-right: var(--space-xs); }

/* Continue with p-2 through p-6 following the same pattern as margin */

/* ========== NAVIGATION ========== */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
}

.navbar-logo {
  height: 40px;
}

.navbar-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-item {
  margin-left: var(--space-lg);
}

.navbar-link {
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--color-navy);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.navbar-link:hover {
  color: var(--color-teal);
}

.navbar-cta {
  margin-left: var(--space-lg);
}

/* ========== CARDS ========== */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-title {
  margin-top: 0;
  margin-bottom: var(--space-sm);
}

.card-body {
  color: var(--color-slate);
}

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

/* Feature card variation */
.card-feature {
  text-align: center;
  padding: var(--space-xl);
}

.card-feature-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-md);
}

/* Pricing card variation */
.card-pricing {
  text-align: center;
  padding: var(--space-xl);
  border: 2px solid var(--color-medium);
}

.card-pricing-popular {
  border-color: var(--color-teal);
  position: relative;
}

.card-pricing-popular::before {
  content: "Most Popular";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-teal);
  color: var(--color-white);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.card-pricing-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-navy);
  margin: var(--space-md) 0;
}

.card-pricing-period {
  font-size: 1rem;
  color: var(--color-slate);
}

.card-pricing-features {
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0;
  text-align: left;
}

.card-pricing-feature {
  padding: var(--space-xs) 0;
  display: flex;
  align-items: center;
}

.card-pricing-feature::before {
  content: "✓";
  color: var(--color-teal);
  margin-right: var(--space-sm);
  font-weight: bold;
}

/* Testimonial card variation */
.card-testimonial {
  padding: var(--space-xl);
  position: relative;
}

.card-testimonial::before {
  content: """;
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  font-size: 4rem;
  font-family: Georgia, serif;
  color: rgba(17, 182, 162, 0.2);
  line-height: 1;
}

.card-testimonial-quote {
  font-style: italic;
  margin-bottom: var(--space-md);
}

.card-testimonial-author {
  display: flex;
  align-items: center;
}

.card-testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin-right: var(--space-sm);
}

.card-testimonial-name {
  font-weight: 600;
  margin: 0;
}

.card-testimonial-role {
  color: var(--color-slate);
  font-size: 0.875rem;
  margin: 0;
}

/* ========== FORM ELEMENTS ========== */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--color-navy);
}

.form-control {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-dark);
  background-color: var(--color-white);
  border: 2px solid var(--color-medium);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-teal);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(17, 182, 162, 0.25);
}

.form-control::placeholder {
  color: var(--color-slate);
  opacity: 0.7;
}

.form-check {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-xs);
}

.form-check-input {
  width: 18px;
  height: 18px;
  margin-right: var(--space-xs);
  border: 2px solid var(--color-medium);
  border-radius: 4px;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.form-check-input:checked {
  background-color: var(--color-teal);
  border-color: var(--color-teal);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23ffffff'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd' /%3E%3C/svg%3E");
  background-size: 14px;
  background-position: center;
  background-repeat: no-repeat;
}

.form-check-input:focus {
  outline: 0;
  box-shadow: 0 0 0 3px rgba(17, 182, 162, 0.25);
}

.form-check-label {
  font-size: 0.875rem;
}

.form-select {
  display: block;
  width: 100%;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-dark);
  background-color: var(--color-white);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%237B8F9C'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd' /%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  border: 2px solid var(--color-medium);
  border-radius: var(--radius-md);
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-select:focus {
  border-color: var(--color-teal);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(17, 182, 162, 0.25);
}

/* ========== HERO SECTION ========== */
.hero {
  padding: var(--space-xxl) 0;
  background: linear-gradient(135deg, var(--color-navy) 0%, #1A4A68 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image: url('neural-pattern.svg');
  background-size: cover;
  opacity: 0.1;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  text-align: center;
  max-width: 500px;
  margin: 0 auto var(--space-xl);
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--space-lg);
  opacity: 0.9;
}

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

.hero-image {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 50%;
  max-width: 600px;
  z-index: 2;
}

/* ========== FEATURES SECTION ========== */
.features {
  padding: var(--space-xxl) 0;
}

.features-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-md);
}

/* ========== HOW IT WORKS SECTION ========== */
.how-it-works {
  padding: var(--space-xxl) 0;
  background-color: var(--color-light);
}

.how-it-works-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

.steps {
  display: flex;
  justify-content: space-between;
  position: relative;
}

.steps::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-medium);
  z-index: 1;
}

.step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 2;
}

.step-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--color-teal);
  color: var(--color-white);
  font-size: 2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

/* ========== TESTIMONIALS SECTION ========== */
.testimonials {
  padding: var(--space-xxl) 0;
}

.testimonials-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

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

/* ========== PRICING SECTION ========== */
.pricing {
  padding: var(--space-xxl) 0;
  background-color: var(--color-light);
}

.pricing-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

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

/* ========== FOOTER ========== */
.footer {
  padding: var(--space-xl) 0;
  background-color: var(--color-navy);
  color: var(--color-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.footer-logo {
  height: 40px;
  margin-bottom: var(--space-md);
}

.footer-heading {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  font-size: 1.25rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-link {
  margin-bottom: var(--space-xs);
}

.footer-link a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.footer-social-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.footer-social-icon:hover {
  background-color: var(--color-teal);
}

.footer-bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display
  justify-content: space-between;
  align-items: center;
}

.footer-copyright {
  font-size: 0.875rem;
  opacity: 0.8;
}

/* ========== NEURAL NETWORK PATTERN ========== */
.neural-pattern {
  position: relative;
}

.neural-pattern::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image: url('neural-pattern.svg');
  background-size: cover;
  opacity: 0.05;
  z-index: 0;
}

.neural-pattern-light::before {
  opacity: 0.03;
}

.neural-pattern-dark::before {
  opacity: 0.1;
}

/* ========== ANIMATIONS ========== */
@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

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

@keyframes drawStroke {
  0% {
    stroke-dashoffset: 1000;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

.animate-pulse {
  animation: pulse 2s infinite ease-in-out;
}

.animate-fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

.animate-draw {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: drawStroke 2s ease-out forwards;
}

/* ========== RESPONSIVE BREAKPOINTS ========== */
/* Mobile (up to 640px) */
@media (max-width: 640px) {
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .navbar {
    flex-direction: column;
  }
  
  .navbar-menu {
    margin-top: var(--space-md);
    flex-direction: column;
    align-items: center;
  }
  
  .navbar-item {
    margin: var(--space-xs) 0;
    margin-left: 0;
  }
  
  .hero-image {
    position: relative;
    right: auto;
    top: auto;
    transform: none;
    width: 100%;
    margin-top: var(--space-lg);
  }
  
  .steps::before {
    display: none;
  }
  
  .steps {
    flex-direction: column;
    gap: var(--space-lg);
  }
}

/* Tablet (641px to 1024px) */
@media (min-width: 641px) and (max-width: 1024px) {
  .hero-image {
    width: 45%;
  }
  
  .steps::before {
    top: 40px;
  }
}

/* Desktop (1025px and above) */
@media (min-width: 1025px) {
  .container {
    padding: 0 var(--space-lg);
  }
}