/* =============================================
   CSS Custom Properties — Sistema de diseño
   ============================================= */
:root {
  --color-primary: #1e3a5f;
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;
  --color-light: #f8fafc;
  --color-dark: #0f172a;
  --color-text: #334155;
  --color-text-light: #64748b;
  --color-white: #ffffff;
  --color-border: #e2e8f0;

  --font-heading: "Montserrat", sans-serif;
  --font-body: "Inter", sans-serif;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.14);

  --radius: 10px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.25;
  font-weight: 700;
}

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

a:hover {
  color: var(--color-accent);
}

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

/* =============================================
   Navbar
   ============================================= */
.navbar {
  background-color: var(--color-white) !important;
  box-shadow: 0 2px 12px rgba(30, 58, 95, 0.10);
  padding: 0.85rem 0;
  transition: box-shadow var(--transition);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary) !important;
  letter-spacing: -0.3px;
  line-height: 1.2;
}

.navbar-brand span {
  color: var(--color-accent);
}

.navbar-nav .nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text) !important;
  letter-spacing: 0.4px;
  padding: 0.5rem 1rem !important;
  border-radius: 6px;
  transition: color var(--transition), background-color var(--transition);
  text-transform: uppercase;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--color-accent) !important;
  background-color: rgba(245, 158, 11, 0.08);
}

.navbar-toggler {
  border: 2px solid var(--color-primary);
  padding: 0.3rem 0.6rem;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231e3a5f' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* =============================================
   Footer
   ============================================= */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: 3.5rem 0 1.5rem;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.footer-brand span {
  color: var(--color-accent);
}

.footer-tagline {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 1.25rem;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

.footer-contact-item i {
  color: var(--color-accent);
  width: 16px;
  flex-shrink: 0;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  transition: background-color var(--transition), color var(--transition);
}

.footer-social a:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.1);
  margin: 2rem 0 1.25rem;
}

.footer-bottom {
  text-align: center;
  font-size: 0.825rem;
  color: rgba(255, 255, 255, 0.45);
}

/* =============================================
   Utilidades globales
   ============================================= */
.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  color: var(--color-text-light);
  font-size: 1rem;
  margin-bottom: 2.5rem;
}

.accent-line {
  width: 50px;
  height: 4px;
  background-color: var(--color-accent);
  border-radius: 2px;
  margin-bottom: 1rem;
}

.btn-primary-custom {
  background-color: var(--color-accent);
  color: var(--color-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
  display: inline-block;
}

.btn-primary-custom:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}

.btn-outline-custom {
  background-color: transparent;
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 0.73rem 1.73rem;
  border-radius: var(--radius);
  border: 2px solid var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: background-color var(--transition), color var(--transition), transform var(--transition);
  display: inline-block;
}

.btn-outline-custom:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* =============================================
   Flash messages
   ============================================= */
.flash-success {
  background-color: #d1fae5;
  color: #065f46;
  border-left: 4px solid #10b981;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-weight: 600;
}

.flash-error {
  background-color: #fee2e2;
  color: #991b1b;
  border-left: 4px solid #ef4444;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-weight: 600;
}