/* ============================================================
   SELLER EM FOCO — COMPONENTS (Part 1: Nav, Buttons, Badges, Cards)
   ============================================================ */

/* ══════════════════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════════════════ */
.sf-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--sf-z-sticky);
  height: var(--sf-nav-height);
  display: flex;
  align-items: center;
  padding: 0 var(--sf-container-padding);
  background: rgba(5, 5, 5, 0.70);
  backdrop-filter: blur(var(--sf-blur-md));
  -webkit-backdrop-filter: blur(var(--sf-blur-md));
  border-bottom: 1px solid var(--sf-border-subtle);
  transition: background var(--sf-transition-base), border-color var(--sf-transition-base);
}
.sf-nav.sf-nav--scrolled {
  background: rgba(5, 5, 5, 0.90);
  border-color: var(--sf-border-default);
}
.sf-nav__inner {
  width: 100%;
  max-width: var(--sf-container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sf-nav__logo {
  font-size: var(--sf-text-md);
  font-weight: var(--sf-weight-semibold);
  color: var(--sf-text-primary);
  letter-spacing: var(--sf-tracking-tight);
}
.sf-nav__logo .sf-accent-text {
  font-weight: var(--sf-weight-bold);
}
.sf-nav__links {
  display: flex;
  align-items: center;
  gap: var(--sf-space-1);
}
.sf-nav__link {
  font-size: var(--sf-text-sm);
  font-weight: var(--sf-weight-medium);
  color: var(--sf-text-secondary);
  padding: var(--sf-space-2) var(--sf-space-3);
  border-radius: var(--sf-radius-md);
  transition: color var(--sf-transition-fast), background var(--sf-transition-fast);
}
.sf-nav__link:hover {
  color: var(--sf-text-primary);
  background: var(--sf-surface-card-hover);
}
.sf-nav__link--active {
  color: var(--sf-text-primary);
}
.sf-nav__cta {
  margin-left: var(--sf-space-4);
}

/* Mobile hamburger */
.sf-nav__hamburger {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.sf-nav__hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--sf-text-primary);
  border-radius: 2px;
  transition: transform var(--sf-transition-base), opacity var(--sf-transition-fast);
}
.sf-nav__hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.sf-nav__hamburger.active span:nth-child(2) { opacity: 0; }
.sf-nav__hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.sf-nav__mobile-menu {
  display: none;
  position: fixed;
  top: var(--sf-nav-height);
  left: 0; right: 0; bottom: 0;
  background: rgba(5, 5, 5, 0.95);
  backdrop-filter: blur(var(--sf-blur-lg));
  -webkit-backdrop-filter: blur(var(--sf-blur-lg));
  padding: var(--sf-space-8) var(--sf-container-padding);
  flex-direction: column;
  gap: var(--sf-space-2);
  z-index: var(--sf-z-overlay);
}
.sf-nav__mobile-menu.active { display: flex; }
.sf-nav__mobile-link {
  font-size: var(--sf-text-lg);
  font-weight: var(--sf-weight-medium);
  color: var(--sf-text-secondary);
  padding: var(--sf-space-4) 0;
  border-bottom: 1px solid var(--sf-border-subtle);
  transition: color var(--sf-transition-fast);
}
.sf-nav__mobile-link:hover { color: var(--sf-text-primary); }

@media (max-width: 768px) {
  .sf-nav__links { display: none; }
  .sf-nav__hamburger { display: flex; }
}

/* ══════════════════════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════════════════════ */
.sf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sf-space-2);
  font-family: var(--sf-font-body);
  font-size: var(--sf-text-md);
  font-weight: var(--sf-weight-medium);
  line-height: 1;
  padding: var(--sf-space-4) var(--sf-space-8);
  border-radius: var(--sf-radius-lg);
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--sf-transition-base);
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}

/* Primary — accent gradient */
.sf-btn--primary {
  background: var(--sf-accent-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 24px rgba(255, 59, 48, 0.15);
}
/* Shimmer light sweep effect */
.sf-btn--primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: skewX(-25deg);
  animation: sfLightSweep 3.5s ease-in-out infinite;
}

/* Secondary — outline */
.sf-btn--secondary {
  background: transparent;
  color: var(--sf-text-secondary);
  border: 1px solid var(--sf-border-default);
}
.sf-btn--secondary:hover {
  color: var(--sf-text-primary);
  border-color: var(--sf-border-strong);
  background: var(--sf-surface-card);
}

/* Ghost — transparent */
.sf-btn--ghost {
  background: transparent;
  color: var(--sf-text-secondary);
  padding: var(--sf-space-2) var(--sf-space-4);
}
.sf-btn--ghost:hover {
  color: var(--sf-text-primary);
  background: var(--sf-surface-card);
}

/* WhatsApp green */
.sf-btn--whatsapp {
  background: #25D366;
  color: #fff;
  border-color: transparent;
}
.sf-btn--whatsapp:hover {
  background: #20BD5A;
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(37, 211, 102, 0.20);
}

/* Dark / inverted */
.sf-btn--dark {
  background: var(--sf-text-primary);
  color: var(--sf-text-inverse);
}
.sf-btn--dark:hover {
  background: #e0e0e0;
  transform: translateY(-2px);
}

/* Sizes */
.sf-btn--sm { font-size: var(--sf-text-sm); padding: var(--sf-space-2-5) var(--sf-space-5); }
.sf-btn--lg { font-size: var(--sf-text-lg); padding: var(--sf-space-5) var(--sf-space-10); }

/* Ripple effect container */
.sf-btn .sf-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  animation: sfRipple 0.6s linear;
  pointer-events: none;
}

/* ══════════════════════════════════════════════════════════
   BADGES
   ══════════════════════════════════════════════════════════ */
.sf-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sf-space-1-5);
  font-size: var(--sf-text-xs);
  font-weight: var(--sf-weight-medium);
  letter-spacing: var(--sf-tracking-wider);
  text-transform: uppercase;
  padding: var(--sf-space-1) var(--sf-space-3);
  border-radius: var(--sf-radius-full);
  line-height: 1.4;
}
.sf-badge--success { background: var(--sf-success-bg); color: var(--sf-success-text); }
.sf-badge--warning { background: var(--sf-warning-bg); color: var(--sf-warning-text); }
.sf-badge--info    { background: var(--sf-info-bg);    color: var(--sf-info-text); }
.sf-badge--danger  { background: var(--sf-danger-bg);  color: var(--sf-danger-text); }
.sf-badge--neutral {
  background: var(--sf-surface-card);
  color: var(--sf-text-secondary);
  border: 1px solid var(--sf-border-subtle);
}
.sf-badge--accent {
  background: var(--sf-accent-subtle);
  color: var(--sf-accent);
}

/* ══════════════════════════════════════════════════════════
   CARDS
   ══════════════════════════════════════════════════════════ */
.sf-card {
  background: var(--sf-surface-card);
  border: 1px solid var(--sf-border-subtle);
  border-radius: var(--sf-radius-lg);
  padding: var(--sf-space-6);
  position: relative;
  overflow: hidden;
  transition: all var(--sf-transition-base);
}
.sf-card:hover {
  border-color: var(--sf-border-default);
  background: var(--sf-surface-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--sf-shadow-lg);
}

/* Elevated card — more contrast */
.sf-card--elevated {
  background: var(--sf-bg-elevated);
  border-color: var(--sf-border-default);
  box-shadow: var(--sf-shadow-md);
}
.sf-card--elevated:hover {
  border-color: var(--sf-border-strong);
  box-shadow: var(--sf-shadow-xl);
}

/* Glow card — accent glow on hover */
.sf-card--glow:hover {
  border-color: var(--sf-border-accent);
  box-shadow: 0 0 40px rgba(255, 59, 48, 0.08), var(--sf-shadow-lg);
}

/* Glass card — frosted glass */
.sf-card--glass {
  background: var(--sf-surface-glass);
  backdrop-filter: blur(var(--sf-blur-md));
  -webkit-backdrop-filter: blur(var(--sf-blur-md));
}
.sf-card--glass:hover {
  background: var(--sf-surface-glass-strong);
}

/* Flat card — no hover lift */
.sf-card--flat {
  background: var(--sf-bg-tertiary);
}
.sf-card--flat:hover {
  transform: none;
  box-shadow: none;
}

/* Stat card */
.sf-card--stat {
  text-align: center;
  padding: var(--sf-space-6);
}
.sf-card--stat:hover { transform: translateY(-2px); }

/* Testimonial card */
.sf-card--testimonial {
  display: flex;
  flex-direction: column;
  gap: var(--sf-space-4);
}
.sf-card__quote {
  font-size: var(--sf-text-sm);
  font-style: italic;
  color: var(--sf-text-secondary);
  line-height: var(--sf-leading-relaxed);
}
.sf-card__author {
  font-size: var(--sf-text-sm);
  font-weight: var(--sf-weight-medium);
  color: var(--sf-text-primary);
}
.sf-card__role {
  font-size: var(--sf-text-xs);
  color: var(--sf-text-tertiary);
}

/* ══════════════════════════════════════════════════════════
   LIGHT MODE — Component Overrides
   ══════════════════════════════════════════════════════════ */

/* Nav glass — white frost */
[data-sf-theme="light"] .sf-nav {
  background: rgba(250, 250, 250, 0.75);
}
[data-sf-theme="light"] .sf-nav.sf-nav--scrolled {
  background: rgba(250, 250, 250, 0.92);
}
[data-sf-theme="light"] .sf-nav__mobile-menu {
  background: rgba(250, 250, 250, 0.96);
}

/* Btn dark — inverts properly */
[data-sf-theme="light"] .sf-btn--dark {
  background: #1A1A1A;
  color: #FAFAFA;
}
[data-sf-theme="light"] .sf-btn--dark:hover {
  background: #333;
}

/* Ripple darker on light surfaces */
[data-sf-theme="light"] .sf-btn--secondary .sf-ripple,
[data-sf-theme="light"] .sf-btn--ghost .sf-ripple {
  background: rgba(0, 0, 0, 0.10);
}

/* Orbs less intense on light */
[data-sf-theme="light"] .sf-orb--accent {
  opacity: 0.4;
}
[data-sf-theme="light"] .sf-glow-spot {
  opacity: 0.25;
}