/* ============================================================
   Kanthavel Stationery Hub - Main Stylesheet
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --primary:    #2563EB;
  --primary-l:  #3B82F6;
  --accent:     #F97316;
  --success:    #22C55E;
  --bg:         #EEF4FF;
  --dark:       #0F172A;
  --glass:      rgba(255,255,255,0.25);
  --blur:       blur(20px);
  --radius:     1.25rem;
  --shadow:     0 8px 32px rgba(37,99,235,0.10);
  --shadow-lg:  0 20px 60px rgba(37,99,235,0.15);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--dark); }
h1,h2,h3,h4,h5 { font-family: 'Poppins', sans-serif; }

/* ── Glassmorphism ── */
.glass {
  background: rgba(255,255,255,0.60);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.70);
  box-shadow: var(--shadow);
}
.glass-dark {
  background: rgba(15,23,42,0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.10);
}

/* ── Gradient Buttons ── */
.btn-primary {
  background: linear-gradient(135deg, #2563EB, #7C3AED);
  color: #fff; border: none; border-radius: var(--radius);
  padding: .75rem 1.75rem; font-family: 'Poppins', sans-serif;
  font-weight: 600; cursor: pointer; transition: all .3s;
  box-shadow: 0 4px 20px rgba(37,99,235,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(37,99,235,0.45); }

.btn-accent {
  background: linear-gradient(135deg, #F97316, #EF4444);
  color: #fff; border: none; border-radius: var(--radius);
  padding: .75rem 1.75rem; font-family: 'Poppins', sans-serif;
  font-weight: 600; cursor: pointer; transition: all .3s;
  box-shadow: 0 4px 20px rgba(249,115,22,0.35);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(249,115,22,0.45); }

.btn-outline {
  background: transparent;
  color: var(--primary); border: 2px solid var(--primary); border-radius: var(--radius);
  padding: .70rem 1.75rem; font-family: 'Poppins', sans-serif;
  font-weight: 600; cursor: pointer; transition: all .3s;
}
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* ── Product Card ── */
.product-card {
  background: #fff; border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(37,99,235,0.07);
  overflow: hidden; transition: all .35s cubic-bezier(.34,1.56,.64,1);
  border: 1px solid rgba(37,99,235,0.07);
}
.product-card:hover { transform: translateY(-8px) scale(1.01); box-shadow: var(--shadow-lg); }
.product-card .card-img { overflow: hidden; position: relative; }
.product-card .card-img img { width: 100%; height: 200px; object-fit: cover; transition: transform .4s; }
.product-card:hover .card-img img { transform: scale(1.08); }
.product-card .badge { position: absolute; top: .6rem; left: .6rem; background: linear-gradient(135deg,#F97316,#EF4444); color: #fff; padding: .2rem .65rem; border-radius: 100px; font-size: .7rem; font-weight: 700; font-family: 'Poppins',sans-serif; }
.product-card .wishlist-btn { position: absolute; top: .6rem; right: .6rem; width: 34px; height: 34px; background: rgba(255,255,255,.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .2s; border: none; }
.product-card .wishlist-btn:hover { background: #FEE2E2; color: #EF4444; transform: scale(1.15); }

/* ── Hero ── */
.hero-gradient { background: linear-gradient(135deg, #EEF4FF 0%, #DBEAFE 40%, #EDE9FE 100%); }

/* ── Section Title ── */
.section-title { font-family: 'Poppins', sans-serif; font-weight: 800; }
.section-title span { background: linear-gradient(135deg, #2563EB, #7C3AED); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ── Floating Animation ── */
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
@keyframes fadeUp { from{opacity:0;transform:translateY(24px)} to{opacity:1;transform:translateY(0)} }
@keyframes shimmer { 0%{background-position:-200% 0} 100%{background-position:200% 0} }
@keyframes spin-slow { to{transform:rotate(360deg)} }
@keyframes pulse-ring { 0%{transform:scale(.8);opacity:.8} 100%{transform:scale(1.6);opacity:0} }

.float { animation: float 3.5s ease-in-out infinite; }
.float-delay { animation: float 3.5s ease-in-out 1s infinite; }
.fade-up { opacity: 0; animation: fadeUp .6s ease forwards; }
.fade-up-1 { animation-delay: .1s; }
.fade-up-2 { animation-delay: .2s; }
.fade-up-3 { animation-delay: .3s; }
.fade-up-4 { animation-delay: .4s; }

/* ── Skeleton Loader ── */
.skeleton { background: linear-gradient(90deg,#f0f4ff 25%,#e0eaff 50%,#f0f4ff 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: .5rem; }

/* ── Toast ── */
.toast {
  background: #fff; border-radius: 1rem; padding: 1rem 1.25rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  display: flex; align-items: center; gap: .75rem;
  animation: fadeUp .35s ease; pointer-events: all;
  border-left: 4px solid var(--primary);
}
.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: #EF4444; }
.toast.warning { border-left-color: var(--accent); }

/* ── Category Card ── */
.cat-card {
  border-radius: var(--radius); padding: 1.5rem; text-align: center;
  transition: all .3s; cursor: pointer; border: 2px solid transparent;
  background: #fff; box-shadow: 0 4px 16px rgba(37,99,235,0.07);
}
.cat-card:hover { border-color: var(--primary); transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.cat-card .cat-icon { width: 64px; height: 64px; border-radius: 1rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; font-size: 1.5rem; color: var(--primary); background: var(--bg); transition: all .3s; }
.cat-card:hover .cat-icon { background: linear-gradient(135deg,#2563EB,#7C3AED); color: #fff; }

/* ── Combo Card ── */
.combo-card { background: linear-gradient(135deg,#fff 0%,#EEF4FF 100%); border: 1px solid rgba(37,99,235,0.1); border-radius: var(--radius); overflow: hidden; transition: all .35s; }
.combo-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

/* ── Rewards ── */
.membership-badge { padding: .25rem .75rem; border-radius: 100px; font-size: .75rem; font-weight: 700; font-family: 'Poppins',sans-serif; }
.badge-bronze   { background: linear-gradient(135deg,#CD7C2F,#A0522D); color: #fff; }
.badge-silver   { background: linear-gradient(135deg,#9CA3AF,#6B7280); color: #fff; }
.badge-gold     { background: linear-gradient(135deg,#F59E0B,#D97706); color: #fff; }
.badge-platinum { background: linear-gradient(135deg,#6366F1,#4F46E5); color: #fff; }

/* ── Form Styles ── */
.form-input {
  width: 100%; padding: .75rem 1rem; border-radius: .875rem;
  border: 1.5px solid #E2E8F0; background: #fff;
  font-family: 'Inter', sans-serif; font-size: .9rem;
  transition: all .2s; outline: none;
}
.form-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.form-label { display: block; font-size: .85rem; font-weight: 600; color: #374151; margin-bottom: .4rem; }

/* ── Progress Bar ── */
.progress-bar { height: 8px; border-radius: 100px; background: #E2E8F0; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 100px; background: linear-gradient(90deg,#2563EB,#7C3AED); transition: width .6s ease; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ── Star Rating ── */
.stars { color: #FCD34D; }

/* ── Admin Sidebar ── */
.admin-sidebar { width: 260px; background: linear-gradient(180deg,#0F172A,#1E293B); min-height: 100vh; position: fixed; left: 0; top: 0; z-index: 100; transition: transform .3s; }
.admin-content { margin-left: 260px; min-height: 100vh; background: #F8FAFC; }
.sidebar-link { display: flex; align-items: center; gap: .875rem; padding: .75rem 1.25rem; color: #94A3B8; border-radius: .75rem; margin: .125rem .75rem; transition: all .2s; font-size: .9rem; }
.sidebar-link:hover, .sidebar-link.active { background: rgba(37,99,235,.2); color: #fff; }
.sidebar-link.active { border-left: 3px solid var(--primary); }

/* ── Stats Card ── */
.stat-card { background: #fff; border-radius: var(--radius); padding: 1.5rem; box-shadow: 0 4px 20px rgba(37,99,235,.07); border: 1px solid rgba(37,99,235,.06); }
.stat-icon { width: 52px; height: 52px; border-radius: 1rem; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .admin-sidebar { transform: translateX(-100%); }
  .admin-sidebar.open { transform: translateX(0); }
  .admin-content { margin-left: 0; }
}

/* ── Utilities ── */
.scrollbar-hide::-webkit-scrollbar { display: none; }
.scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }
.text-gradient { background: linear-gradient(135deg,#2563EB,#7C3AED); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.bg-gradient-main { background: linear-gradient(135deg,#2563EB,#7C3AED); }
.border-gradient { border-image: linear-gradient(135deg,#2563EB,#7C3AED) 1; }