/* ============================================================
   base.css — Global Typography, Layout Patterns, Shared Components
============================================================ */

/* ── BODY ── */
body {
  background: var(--white);
  color: var(--grey-900);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar         { width: 4px; }
::-webkit-scrollbar-track   { background: var(--grey-100); }
::-webkit-scrollbar-thumb   { background: var(--royal); border-radius: 2px; }

/* ── SECTION BASE ── */
section {
  padding: var(--section-pad) var(--side-pad);
}

/* ── SECTION TAG ── */
.section-tag {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: .7rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--royal);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.section-tag::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  flex-shrink: 0;
}
/* Light variant (on dark backgrounds) */
.section-tag.--light,
.section-tag[class*="--light"] {
  color: var(--royal-light);
}
/* Centered variant */
.section-tag.--center {
  justify-content: center;
}
.section-tag.--center::before,
.section-tag.--center::after {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: currentColor;
  flex-shrink: 0;
}

/* ── SECTION TITLE ── */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 500;
  line-height: 1.1;
  color: var(--navy);
  letter-spacing: -.01em;
  margin-bottom: 20px;
}
.section-title em {
  color: var(--royal);
  font-style: normal;
}
.section-title.--light,
.section-title[class*="--light"] {
  color: var(--white);
}
.section-title.--light em {
  color: var(--royal-light);
}
.section-title.--center {
  text-align: center;
}

/* ── SHARED BUTTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--royal);
  color: var(--white);
  padding: 15px 42px;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: .88rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  border: none;
  border-left: 3px solid var(--royal-light);
  position: relative;
  overflow: hidden;
  transition: transform var(--trans-med), box-shadow var(--trans-med), background var(--trans-med);
}
.btn-primary::after {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
  transition: left .5s;
}
.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-royal);
}
.btn-primary:hover::after { left: 160%; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--white);
  padding: 15px 36px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: .88rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,.22);
  transition: all var(--trans-med);
}
.btn-ghost:hover {
  border-color: var(--royal-light);
  color: var(--royal-light);
  background: rgba(30,64,175,.08);
}

/* WhatsApp float — pill style */
.wa-float {
  position: fixed;
  bottom: 32px;
  right: 28px;
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #25D366;
  color: #fff;
  padding: 14px 22px 14px 18px;
  border-radius: 99px;
  box-shadow: 0 6px 28px rgba(37,211,102,.45), 0 2px 8px rgba(0,0,0,.15);
  animation: waPulse 3s ease infinite;
  transition: transform .3s, box-shadow .3s, padding .3s;
  text-decoration: none;
  overflow: hidden;
  max-width: 200px;
}
.wa-float svg {
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,.15));
}
.wa-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: .82rem;
  letter-spacing: .08em;
  white-space: nowrap;
  text-transform: uppercase;
}
.wa-float:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(37,211,102,.55), 0 4px 12px rgba(0,0,0,.2);
}
@keyframes waPulse {
  0%, 100% { box-shadow: 0 6px 28px rgba(37,211,102,.45), 0 2px 8px rgba(0,0,0,.15); }
  50%       { box-shadow: 0 6px 36px rgba(37,211,102,.65), 0 0 0 8px rgba(37,211,102,.08), 0 2px 8px rgba(0,0,0,.15); }
}
@media (max-width: 480px) {
  .wa-float { padding: 13px; border-radius: 50%; }
  .wa-label { display: none; }
}