/* ==========================================================
   REGULARIZATE DIGITAL: Master Style Sheet (v2.0 Optimized)
   ========================================================== */

/* ----------------------------------------------------------
   1. VARIABLES & SETUP (UPDATED FOR TRUST/GOV THEME)
   ---------------------------------------------------------- */
:root {
  /* BRAND COLORS (Blue = Trust, Red = Urgency) */
  --brand-blue: #2563eb;       /* Primary Action Color */
  --brand-dark: #1e3a8a;       /* Government/Official Blue */
  --brand-alert: #dc2626;      /* Urgency/Deadline Red */
  --brand-success: #16a34a;    /* WhatsApp/Success Green */
  
  /* GRADIENTS */
  --gradient-blue: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  --gradient-hero: linear-gradient(180deg, #0f172a 0%, #1e3a8a 100%);
  
  /* DEFAULT THEME */
  --bg-primary: #f8fafc;       /* Light Blue-Grey Background */
  --bg-secondary: #ffffff;
  --text-primary: #1e293b;     /* Dark Blue-Grey Text (Softer than black) */
  --text-muted: #64748b;
  --border-light: #e2e8f0;
  
  /* SPACING & UTILS */
  --sp-radius: 8px;            /* Slightly more rounded for modern feel */
  --sp-radius-xl: 16px;
  --sp-font-heavy: 'Oswald', sans-serif;
  --sp-font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --sp-max-width: 1200px;
  
  /* SHADOWS */
  --elev-1: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --elev-2: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --elev-3: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --elev-4: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  
  /* TRANSITIONS */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ----------------------------------------------------------
   2. BASE STYLES & TEXTURE
   ---------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--sp-font-body);
  line-height: 1.6;
  margin: 0;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  
  /* TEXTURE: Subtle Digital Grid */
  background-image: 
      linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--sp-font-heavy);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: 3rem;
  text-align: center;
  color: var(--brand-dark);
  letter-spacing: -1px;
}

h2 {
  font-size: 2.25rem;
  margin-top: 3rem;
  color: var(--brand-dark);
}

h3 {
  font-size: 1.5rem;
  color: var(--brand-blue);
  margin-top: 0;
}

p {
  margin-bottom: 1rem;
  font-weight: 400;
  letter-spacing: 0.2px;
  color: var(--text-muted);
}

a {
  color: var(--brand-blue);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--brand-dark);
}

/* ----------------------------------------------------------
   3. TYPOGRAPHY SYSTEM (PROFESSIONAL HIERARCHY)
   ---------------------------------------------------------- */
.hero-h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  color: white;
  margin-bottom: 1.5rem;
  text-align: center;
}

.section-title {
  font-family: var(--sp-font-heavy);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.3px;
  color: var(--text-muted);
}

.card {
  position: relative;
  z-index: 1;
  background: white;
  border-radius: var(--sp-radius-xl);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--elev-2);
  transition: var(--transition);
}
  color: var(--text-muted);
}

a {
  color: var(--brand-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--brand-dark);
}

a:focus {
  outline: 2px solid var(--brand-blue);
  outline-offset: 2px;
  border-radius: 2px;
}

.center {
  text-align: center;
}

.container {
  max-width: var(--sp-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

hr {
  border: 0;
  border-top: 1px solid var(--border-light);
  margin: 3rem 0;
}

/* Accessibility: Skip to main content link */
.skip-to-main {
  position: absolute;
  top: -9999px;
  left: -9999px;
  z-index: 999;
  padding: 8px 16px;
  background: var(--brand-blue);
  color: white;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
}

.skip-to-main:focus {
  top: 0;
  left: 0;
}

/* ----------------------------------------------------------
   3. BUTTONS (Standard & Variants)
   ---------------------------------------------------------- */
.btn {
  background: var(--gradient-blue);
  color: #ffffff !important;
  font-weight: 700;
  padding: 0.85rem 2rem;
  border-radius: var(--sp-radius);
  display: inline-block;
  text-transform: uppercase;
  font-size: 1rem;
  letter-spacing: 0.5px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  font-family: var(--sp-font-heavy);
  box-shadow: var(--elev-2);
  position: relative;
  overflow: hidden;
}

.btn:before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: left 0.3s ease;
}

.btn:hover:before {
  left: 100%;
}

.btn:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  transform: translateY(-3px);
  box-shadow: var(--elev-4);
}

.btn:active {
  transform: translateY(-1px);
}

.btn:focus {
  outline: 2px solid var(--brand-blue);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-outline {
    background-color: transparent !important;
    color: var(--brand-blue) !important;
    border: 2px solid var(--brand-blue) !important;
    box-shadow: none !important;
}

.btn-outline:hover {
    background-color: var(--brand-blue) !important;
    color: #ffffff !important;
}

/* ----------------------------------------------------------
   4. LAYOUT COMPONENTS
   ---------------------------------------------------------- */
   
/* HERO DIGITAL (From the Index) */
.hero-digital {
    background: linear-gradient(180deg, #0f172a 0%, #1e3a8a 100%);
    color: white;
    padding: 6rem 1rem 8rem; /* Extra padding bottom for overlap */
    text-align: center;
    border-bottom: 5px solid var(--brand-blue);
    position: relative;
    overflow: hidden;
}

.hero-digital h1 { color: white; }
.hero-digital p { color: #cbd5e1; }

.brand-pill {
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid var(--brand-blue);
    color: #60a5fa;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-family: monospace;
    text-transform: uppercase;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 1.5rem;
}

/* CARDS & GRIDS */
.path-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 0 auto 4rem;
    max-width: 1200px;
    padding: 0 1.5rem;
    position: relative;
    z-index: 10;
}

.path-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-light);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}
.path-card:hover { 
    transform: translateY(-8px); 
    border-color: var(--brand-blue); 
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.15);
}

.path-icon {
    background: var(--bg-primary);
    width: 60px; height: 60px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--brand-blue);
}

/* ACTION BOX */
.action-box {
    background: white;
    border: 2px solid var(--brand-blue);
    border-radius: 16px;
    padding: 3.5rem 2.5rem;
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
    box-shadow: var(--elev-3);
    position: relative;
    z-index: 1;
}

.btn-whatsapp {
    background: var(--brand-success);
    color: white !important;
    font-family: var(--sp-font-heavy);
    font-size: 1.2rem;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    margin-top: 1.5rem;
    box-shadow: var(--elev-2);
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-whatsapp:hover {
    background: #15803d;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(21, 128, 61, 0.3);
}

.btn-whatsapp:focus {
    outline: 2px solid var(--brand-success);
    outline-offset: 2px;
}

/* CHECKLISTS */
.digital-list {
    list-style: none;
    padding: 0;
    text-align: left;
    margin: 2rem 0;
}

.digital-list li {
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-primary);
}

.digital-list li svg {
    flex-shrink: 0;
    color: var(--brand-success);
    margin-top: 3px;
}

/* ----------------------------------------------------------
   5. FOOTER & UTILS
   ---------------------------------------------------------- */
.site-footer {
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 4rem 2rem 2rem;
  margin-top: 5rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--brand-blue);
  transition: var(--transition);
}

.site-footer a:hover {
  color: var(--brand-dark);
  text-decoration: underline;
}

/* ----------------------------------------------------------
   6. RESPONSIVE DESIGN
   ---------------------------------------------------------- */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .hero-digital {
        padding: 4rem 1rem 3rem;
    }

    .hero-digital h1 {
        font-size: 1.75rem;
    }

    .path-grid {
        margin-top: -1.5rem;
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .container {
        padding: 0 1rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 15px;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    h3 {
        font-size: 1rem;
    }

    .hero-digital {
        padding: 2.5rem 1rem;
        border-bottom-width: 3px;
    }

    .brand-pill {
        padding: 0.4rem 1rem;
        font-size: 0.8rem;
    }

    .path-card {
        padding: 1.5rem;
    }

    .action-box {
        padding: 2rem 1rem;
    }

    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.85rem;
        letter-spacing: 0px;
    }
}

/* ----------------------------------------------------------
   7. DARK MODE SUPPORT
   ---------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #0f172a;
        color: #f1f5f9;
        background-image:
            linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
            linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
    }

    :root {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --text-primary: #f1f5f9;
        --text-muted: #cbd5e1;
        --border-light: #334155;
    }

    h1, h2, h3, h4, h5, h6 {
        color: #60a5fa;
    }

    a {
        color: #60a5fa;
    }

    a:hover {
        color: #93c5fd;
    }

    .path-card {
        background: #1e293b;
        border-color: #334155;
    }

    .path-icon {
        background: #334155;
        color: #60a5fa;
    }

    .action-box {
        background: #1e293b;
        border-color: #2563eb;
    }

    .site-footer {
        background: #0f172a;
        border-top-color: #334155;
    }

    .hero-digital {
        background: linear-gradient(180deg, #0f172a 0%, #1e3a8a 80%);
    }
}

/* ----------------------------------------------------------
   8. REDUCED MOTION SUPPORT
   ---------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ----------------------------------------------------------
   9. HIGH CONTRAST MODE
   ---------------------------------------------------------- */
@media (prefers-contrast: more) {
    body {
        line-height: 1.8;
    }

    .btn {
        border: 2px solid currentColor;
        font-weight: 900;
    }

    a {
        text-decoration: underline;
    }
}