/* ==========================================================================
   LovelyPet — style.css
   Pastel Sky Blue Design System (Clean Header & High Contrast)
   Plain CSS only — No Bootstrap, No Tailwind, No Build Step.
   ========================================================================== */

/* ---- Design Tokens ------------------------------------------------------ */
:root {
  /* Brand Colors */
  --color-primary: #5A9BD4;
  --color-primary-dark: #2C6E9F;
  --color-primary-light: #EBF4FC;
  --color-accent: #E85B6C;
  --color-accent-dark: #C93D4E;

  /* Surfaces */
  --bg-page: #F3F7FA;
  --bg-surface: #FFFFFF;
  --bg-row-hover: #EBF2F7;

  /* Text Colors (High Contrast) */
  --text-main: #1E293B;
  --text-muted: #64748B;
  --text-on-accent: #FFFFFF;

  /* Pastel Containers & Badges */
  --pastel-blue: #DCEEFB;
  --pastel-pink: #FFE7EA;
  --pastel-mint: #DFF5EC;
  --pastel-blue-text: #225C84;
  --pastel-pink-text: #A82E3E;
  --pastel-mint-text: #1B634D;

  /* Leaderboard Accents */
  --rank-gold: #D99B00;
  --rank-gold-bg: #FFF8E6;
  --rank-silver: #788B9B;
  --rank-silver-bg: #F0F4F7;
  --rank-bronze: #B86B35;
  --rank-bronze-bg: #FAF0E8;

  /* Shape & Elevation */
  --radius-card: 16px;
  --radius-input: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 16px rgba(15, 23, 42, 0.06);
  --shadow-card-hover: 0 12px 28px rgba(15, 23, 42, 0.12);

  /* Typography */
  --font-main: 'Prompt', 'Plus Jakarta Sans', system-ui, sans-serif;

  /* Layout */
  --container-width: 1180px;
}

/* ---- Reset & Base Style -------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--text-main);
  background: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
input, select, button { font-size: 1rem; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Accessible Focus Ring */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ---- Typography ----------------------------------------------------------- */
h1, h2, h3 { margin: 0 0 12px; font-weight: 700; line-height: 1.25; color: var(--text-main); }
h1 { font-size: clamp(2rem, 3.5vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
p { margin: 0 0 12px; color: var(--text-muted); max-width: 62ch; font-weight: 400; }

.section-heading { margin-bottom: 28px; }
.section-heading p { margin: 0; }

/* ---- Header & Navigation (Ultra Clean & Minimal Layout) ---------------- */
.site-header {
  background: var(--bg-surface);
  border-bottom: 1px solid rgba(100, 116, 139, 0.12);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  font-weight: 800;
  font-size: 1.45rem;
  color: var(--color-primary-dark);
  white-space: nowrap;
  flex-shrink: 0;
}
.brand span { color: var(--color-accent); }

.nav-collapse {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 24px;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
}
.nav-links a { 
  padding: 6px 4px; 
  border-bottom: 3px solid transparent; 
  transition: all 0.2s ease;
}
.nav-links a:hover { border-bottom-color: var(--color-accent); color: var(--color-accent); }
.nav-links a.is-active { border-bottom-color: var(--color-primary); color: var(--color-primary-dark); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-left: auto;
}

.auth-control { display: flex; align-items: center; gap: 12px; font-size: 0.95rem; white-space: nowrap; }
.auth-control .greeting { font-weight: 700; color: var(--text-main); }
.auth-control .greeting .heart { color: var(--color-accent); }

/* Mobile Hamburger Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  padding: 0;
  background: var(--bg-page);
  border: 1px solid rgba(100, 116, 139, 0.2);
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Buttons (High Contrast & Clear Typography) -------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  font-weight: 700;
  letter-spacing: 0.2px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

/* Primary Button: Solid Accent Pink with High Contrast Text */
.btn-primary { 
  background: var(--color-accent); 
  color: #FFFFFF !important; 
  box-shadow: 0 4px 12px rgba(232, 91, 108, 0.35);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}
.btn-primary:hover { 
  background: var(--color-accent-dark); 
  box-shadow: 0 6px 16px rgba(201, 61, 78, 0.45); 
}

/* Secondary Button: Blue Border with Bold Text */
.btn-secondary { 
  background: #FFFFFF; 
  color: var(--color-primary-dark) !important; 
  border-color: var(--color-primary); 
}
.btn-secondary:hover { 
  background: var(--color-primary-light); 
  color: var(--color-primary-dark) !important;
}

/* Ghost Button */
.btn-ghost { 
  color: var(--text-main) !important; 
  font-weight: 700; 
}
.btn-ghost:hover { 
  color: var(--color-accent) !important; 
  background: rgba(232, 91, 108, 0.08); 
}

.btn-sm { padding: 6px 16px; font-size: 0.88rem; }

/* ---- Hero Section -------------------------------------------------------- */
.hero {
  background:
    radial-gradient(circle at 15% 20%, #E2F2FF 0, transparent 50%),
    radial-gradient(circle at 85% 10%, #FFE3E6 0, transparent 45%),
    var(--bg-page);
  padding: 56px 0 48px;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.hero-copy .eyebrow-passport {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1.5px dashed var(--color-primary);
  border-radius: var(--radius-pill);
  color: var(--color-primary-dark);
  font-size: 0.88rem;
  font-weight: 700;
  background: var(--bg-surface);
  margin-bottom: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.02);
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; }

.hero-passport-card {
  background: var(--bg-surface);
  border-radius: var(--radius-card);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  padding: 22px;
  position: relative;
  border: 1px solid rgba(90, 155, 212, 0.2);
}
.hero-passport-card::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1.5px dashed rgba(90, 155, 212, 0.4);
  border-radius: 12px;
  pointer-events: none;
}
.hero-passport-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 10px;
}
.hero-passport-card .passport-row {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  font-size: 0.92rem;
  color: var(--text-muted);
}
.hero-passport-card .passport-row strong { color: var(--text-main); font-weight: 700; }

/* ---- Filter Tabs --------------------------------------------------------- */
.filter-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.filter-tab {
  padding: 9px 20px;
  border-radius: var(--radius-pill);
  background: var(--bg-surface);
  border: 1.5px solid rgba(100, 116, 139, 0.18);
  color: var(--text-muted);
  font-weight: 600;
  transition: all 0.2s ease;
}
.filter-tab:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }
.filter-tab.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 10px rgba(90, 155, 212, 0.3);
}

/* ---- Breed Encyclopedia Cards & Inner Page Search ------------------------- */
.breed-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.breed-card {
  background: var(--bg-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  border: 1px solid rgba(100, 116, 139, 0.08);
  transition: all 0.2s ease;
}
.breed-card:hover { 
  box-shadow: var(--shadow-card-hover); 
  transform: translateY(-4px);
}
.breed-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.breed-card .breed-body { padding: 18px 20px 20px; }
.breed-card .breed-category {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--pastel-blue-text);
  background: var(--pastel-blue);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
}
.breed-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
.breed-card p { font-size: 0.9rem; margin-bottom: 0; line-height: 1.5; }
.breed-card.is-hidden { display: none; }

/* ---- Pet Catalog Grid ---------------------------------------------------- */
.pet-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.pet-card {
  background: var(--bg-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  border: 1px solid rgba(100, 116, 139, 0.08);
  transition: all 0.2s ease;
}
.pet-card:hover { 
  box-shadow: var(--shadow-card-hover); 
  transform: translateY(-4px);
}
.pet-card .pet-image-wrap { position: relative; aspect-ratio: 1 / 1; }
.pet-card .pet-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.pet-card .like-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-accent-dark);
  font-size: 0.85rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.pet-card .pet-body { padding: 16px 18px 18px; }
.pet-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.pet-card .breed-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--pastel-mint-text);
  background: var(--pastel-mint);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
}
.pet-card .btn { width: 100%; }

/* ---- Leaderboard Top 3 --------------------------------------------------- */
.leaderboard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: end;
}
.rank-card {
  background: var(--bg-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 24px 20px;
  text-align: center;
  border-top: 5px solid transparent;
}
.rank-card img {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 14px;
  border: 3px solid #FFFFFF;
  box-shadow: 0 0 0 3px currentColor;
}
.rank-card .rank-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.95rem;
  margin-bottom: 12px;
}
.rank-card h3 { margin-bottom: 4px; font-size: 1.15rem; }
.rank-card .likes { font-weight: 700; color: var(--color-accent-dark); }

.rank-card.rank-1 { 
  border-top-color: var(--rank-gold); 
  background: var(--rank-gold-bg); 
  color: var(--rank-gold); 
  order: 2; 
  transform: translateY(-16px); 
}
.rank-card.rank-2 { border-top-color: var(--rank-silver); background: var(--rank-silver-bg); color: var(--rank-silver); order: 1; }
.rank-card.rank-3 { border-top-color: var(--rank-bronze); background: var(--rank-bronze-bg); color: var(--rank-bronze); order: 3; }
.rank-card .rank-number { background: currentColor; }
.rank-card .rank-number span { color: #FFFFFF; }

/* ---- Sections & Footer --------------------------------------------------- */
.section { padding: 52px 0; }
.section-alt { background: var(--bg-surface); }

.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid rgba(100, 116, 139, 0.12);
  padding: 32px 0;
  margin-top: 40px;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.92rem;
  color: var(--text-muted);
}
.footer-links { display: flex; gap: 20px; font-weight: 500; }

/* ---- Back To Top --------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #FFFFFF;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.25s ease;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-primary-dark); }

/* ---- Status Badges ------------------------------------------------------- */
.status-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
}
.status-badge.is-active  { background: var(--pastel-mint); color: var(--pastel-mint-text); }
.status-badge.is-pending { background: var(--pastel-blue); color: var(--pastel-blue-text); }
.status-badge.is-blocked { background: var(--pastel-pink); color: var(--pastel-pink-text); }

/* ---- Responsive Breakpoints ---------------------------------------------- */
@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav-collapse {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding-top: 16px;
    padding-bottom: 8px;
  }
  .nav-collapse.is-open { display: flex; }
  .nav-links { flex-direction: column; gap: 4px; }
  .nav-links a { display: block; padding: 10px 8px; }
  .header-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    margin-left: 0;
    gap: 12px;
  }
}

@media (max-width: 992px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-passport-card { max-width: 440px; margin: 0 auto; }
  .breed-grid { grid-template-columns: repeat(2, 1fr); }
  .pet-grid { grid-template-columns: repeat(2, 1fr); }
  .leaderboard-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }
}

@media (max-width: 768px) {
  .breed-grid, .pet-grid, .leaderboard-grid { grid-template-columns: 1fr; }
  .rank-card.rank-1 { transform: none; order: 1; }
  .rank-card.rank-2 { order: 2; }
  .rank-card.rank-3 { order: 3; }
  .site-footer .container { flex-direction: column; text-align: center; align-items: center; }
}