/* =====================
   RESET + VIBRANT THEME
====================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

:root {
  --blue: #2563eb;
  --indigo: #4f46e5;
  --purple: #7c3aed;
  --pink: #ec4899;
  --green: #22c55e;
  --bg: #f1f5ff;
  --card: rgba(255, 255, 255, 0.85);
  --text: #0f172a;
  --muted: #475569;
  --border: rgba(255, 255, 255, 0.5);
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
  --glow: 0 0 0 0 rgba(79, 70, 229, 0.5);
}

/* =====================
   PAGE BACKGROUND
====================== */
body {
  background:
    radial-gradient(circle at top left, #dbeafe, transparent 60%),
    radial-gradient(circle at bottom right, #ede9fe, transparent 60%),
    linear-gradient(180deg, #eef2ff, #f8fafc);
  min-height: 100vh;
  color: var(--text);
  display: flex;
  flex-direction: column;
}

/* =====================
   HEADER (HERO STYLE)
====================== */
header {
  padding: 3rem 1.5rem 2rem;
  text-align: center;
}

#bigTitle {
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(90deg, var(--blue), var(--purple), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.03em;
}

header p {
  margin-top: 0.7rem;
  font-size: 1.15rem;
  color: var(--muted);
}

/* =====================
   MAIN CONTAINER
====================== */
main {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* =====================
   LANDING CARD
====================== */
#landingPage {
  max-width: 460px;
  margin: 4.5rem auto;
  padding: 2.8rem;
  background: var(--card);
  backdrop-filter: blur(14px);
  border-radius: 22px;
  box-shadow: var(--shadow);
  text-align: center;
  animation: popIn 0.7s cubic-bezier(.25,.8,.25,1);
}

#landingPage h1 {
  font-size: 2.1rem;
  margin-bottom: 0.6rem;
}

#landingPage p {
  color: var(--muted);
  margin-bottom: 1.8rem;
}

#landingPage input {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.9);
  font-size: 1rem;
  margin-bottom: 1.2rem;
}

#landingPage button {
  width: 100%;
  padding: 0.85rem;
  border-radius: 16px;
  border: none;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(79,70,229,0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

#landingPage button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(79,70,229,0.5);
}

/* =====================
   TABS
====================== */
.tabs {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.8rem;
}

.tab {
  flex: 1;
  padding: 0.85rem;
  border-radius: 16px;
  text-align: center;
  font-weight: 700;
  cursor: pointer;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}

.tab:hover {
  transform: translateY(-1px);
}

.tab.active {
  background: linear-gradient(135deg, var(--indigo), var(--purple));
  color: white;
  box-shadow: 0 10px 30px rgba(124,58,237,0.45);
}

/* =====================
   SEARCH BAR
====================== */
.search input {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.85);
  margin-bottom: 1.2rem;
}

/* =====================
   CATEGORY PILLS
====================== */
.categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.categories button {
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  border: none;
  background: rgba(255,255,255,0.8);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.categories button:hover {
  transform: translateY(-1px);
}

.categories button.active {
  background: linear-gradient(135deg, var(--blue), var(--pink));
  color: white;
  box-shadow: 0 6px 18px rgba(236,72,153,0.45);
}

/* =====================
   ITEM GRID
====================== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.8rem;
}

/* =====================
   ITEM CARD
====================== */
.card {
  position: relative;
  background: var(--card);
  backdrop-filter: blur(16px);
  border-radius: 22px;
  padding: 1.2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: fadeUp 0.5s ease;
}

.card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 28px 60px rgba(0,0,0,0.18);
}

.item-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 16px;
}

/* =====================
   BADGE
====================== */
.badge {
  font-size: 0.7rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
}
.badge.category {
  position: absolute;
  top: 14px;
  right: 14px;
  background: linear-gradient(135deg, var(--green), #4ade80);
  color: white;
}
.badge.returned {
  background: #9ca3af;
  color: white;
  font-size: 0.75rem;
}


/* =====================
   CARD CONTENT
====================== */
.card h3 {
  font-size: 1.15rem;
}

.card .meta {
  font-size: 0.8rem;
  color: var(--muted);
}

.card p {
  font-size: 0.9rem;
  color: var(--muted);
}

/* =====================
   CARD CTA
====================== */
.card button {
  margin-top: auto;
  padding: 0.7rem;
  border-radius: 14px;
  border: none;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: white;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(79,70,229,0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(79,70,229,0.55);
}

/* =====================
   REPORT CARD
====================== */
.form-wrapper {
  max-width: 480px;
  margin: 3.5rem auto;
  padding: 2.6rem;
  background: var(--card);
  backdrop-filter: blur(16px);
  border-radius: 22px;
  box-shadow: var(--shadow);
  text-align: center;
}

.report-btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.8rem 1.3rem;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--green), #16a34a);
  color: white;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 10px 25px rgba(34,197,94,0.4);
}

/* =====================
   FOOTER
====================== */
footer {
  text-align: center;
  padding: 1.2rem;
  font-size: 0.8rem;
  color: var(--muted);
}

/* =====================
   UTILITIES
====================== */
.hidden {
  display: none;
}

.loading {
  text-align: center;
  margin: 2.5rem 0;
  color: var(--muted);
}

/* =====================
   ANIMATIONS
====================== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
.input-error {
  border: 2px solid #ef4444 !important;
  animation: shake 0.3s;
}

@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  50% { transform: translateX(4px); }
  75% { transform: translateX(-4px); }
  100% { transform: translateX(0); }
}
.badges {
  display: flex;
  gap: 0.4rem;
}

.returned-row {
  margin-top: 0.35rem;
}