/* ============================================
   BASE — Reset, typografia, utility
   ============================================ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-8);
}
.container--wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

/* Section */
.section { padding: var(--space-20) 0; }
.section--gray { background: var(--color-bg); }
.section--dark { background: var(--color-dark); color: var(--color-white); }

/* Section header */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}
.section-tag {
  display: inline-block;
  background: var(--color-blue-glass);
  color: var(--color-blue-light);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.2;
  margin-bottom: var(--space-3);
}
.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-red), var(--color-blue));
  margin: var(--space-3) auto 0;
  border-radius: 2px;
}
.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-gray);
  max-width: 540px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.8rem 1.8rem;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.8px;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}
.btn--red {
  background: var(--color-red);
  color: var(--color-white);
  box-shadow: var(--shadow-red);
}
.btn--red:hover {
  background: var(--color-red-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(196,30,58,0.3);
}
.btn--outline {
  background: rgba(255,255,255,0.12);
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.45);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.15), 0 4px 20px rgba(0,0,0,0.15);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.70);
  transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.2), 0 8px 28px rgba(0,0,0,0.2);
}
.btn--full { width: 100%; }
.btn--lg { padding: 1rem 2.4rem; font-size: var(--text-base); }
.btn--hero {
  padding: 1.05rem 2.2rem;
  font-size: var(--text-sm);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* Form elements */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.field label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-gray);
}
.field input,
.field select,
.field textarea {
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-dark);
  background: var(--color-white);
  outline: none;
  transition: border-color var(--duration) var(--ease);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-red);
}
.field--dark input,
.field--dark select,
.field--dark textarea {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
  color: var(--color-white);
}
.field--dark input::placeholder,
.field--dark select::placeholder,
.field--dark textarea::placeholder {
  color: rgba(255,255,255,0.35);
}
.field--dark input:focus,
.field--dark select:focus,
.field--dark textarea:focus {
  border-color: var(--color-red-light);
}
.field--dark label { color: rgba(255,255,255,0.55); }

/* Grid helpers */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.col-span-2 { grid-column: 1 / -1; }

/* Loading / empty state */
.empty-state {
  grid-column: 1/-1;
  text-align: center;
  padding: var(--space-16);
  color: var(--color-gray);
  font-size: var(--text-base);
}

/* Success message */
.success-msg {
  text-align: center;
  padding: var(--space-8);
  color: #059669;
  font-size: var(--text-lg);
  font-weight: 600;
}

/* Utility */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* Responsive */
@media (max-width: 768px) {
  .container, .container--wide { padding: 0 var(--space-5); }
  .grid-2 { grid-template-columns: 1fr; }
  .section { padding: var(--space-16) 0; }
}