/* ============================================
   TINA NAIL SPA — Custom Styles
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

::selection {
  background: #3dbf84;
  color: #081119;
}

/* ============================================
   NAVIGATION
   ============================================ */
#navbar {
  transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.97);
  box-shadow: 0 1px 0 rgba(13, 28, 43, 0.06);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: #3dbf84;
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* Mobile Menu */
#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu-line:nth-child(1) {
  transform-origin: center;
}

.mobile-menu-line:nth-child(2) {
  transform-origin: center;
}

#mobile-menu-btn.active .mobile-menu-line:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

#mobile-menu-btn.active .mobile-menu-line:nth-child(2) {
  transform: translateY(-5px) rotate(-45deg);
}

.mobile-menu-link {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#mobile-menu.open .mobile-menu-link {
  opacity: 1;
  transform: translateY(0);
}

#mobile-menu.open .mobile-menu-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-menu-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-menu-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-menu-link:nth-child(4) { transition-delay: 0.25s; }

/* ============================================
   HERO
   ============================================ */
#hero {
  position: relative;
}

/* Floating card animation */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Decorative circles animation */
@keyframes pulse-ring {
  0%, 100% { opacity: 0.2; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.1; transform: translate(-50%, -50%) scale(1.05); }
}

/* ============================================
   SERVICE CARDS
   ============================================ */
.service-card {
  transition: background-color 0.3s ease;
}

.service-card:hover {
  background-color: #f2fbf8;
}

.service-card:hover svg path,
.service-card:hover svg circle,
.service-card:hover svg ellipse,
.service-card:hover svg rect {
  stroke: #28a06a;
  fill: #28a06a;
}

/* ============================================
   GALLERY
   ============================================ */
.gallery-item {
  position: relative;
  overflow: hidden;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 17, 25, 0.3) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ============================================
   SCROLL REVEAL (progressive enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }

  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ============================================
   FORM
   ============================================ */
input:focus,
textarea:focus {
  outline: none;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 767px) {
  .font-serif {
    line-height: 1.1;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  #hero h1 {
    font-size: 4.5rem;
  }
}

/* ============================================
   FOCUS VISIBLE
   ============================================ */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid #3dbf84;
  outline-offset: 2px;
}

/* ============================================
   PRINT
   ============================================ */
@media print {
  #navbar,
  #mobile-menu,
  .gallery-item,
  iframe {
    display: none;
  }

  body {
    color: #000;
    background: #fff;
  }
}