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

:root {
  --bg: #f2f4f5;
  --surface: #ffffff;
  --surface2: #f7f8f9;
  --border: #e0e4e8;
  --border-strong: #c8cdd3;
  --accent: #002f34;
  --accent-hover: #004d55;
  --accent2: #23e5db;
  --cta: #ffce32;
  --cta-hover: #f5c100;
  --text: #1a1d1e;
  --text-muted: #6b7280;
  --text-dim: #9ca3af;
  --card-bg: #ffffff;
  --success: #16a34a;
  --danger: #dc2626;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 1px 4px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 12px rgba(0,0,0,0.12), 0 8px 28px rgba(0,0,0,0.09);
  --transition: 0.18s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--accent);
  padding: 0 2rem;
  box-shadow: 0 2px 8px rgba(0,47,52,0.18);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.04em;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span { color: #23e5db; }

.logo-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cta);
  display: inline-block;
  position: relative;
}

.logo-dot::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--cta);
  animation: ripple 1.5s ease-out infinite;
}

@keyframes ripple {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(3); opacity: 0; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.75; }
}

nav { display: flex; align-items: center; gap: 4px; }

nav a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  transition: var(--transition);
}

nav a:hover, nav a.active {
  color: #fff;
  background: rgba(255,255,255,0.12);
}

.btn-post {
  background: var(--cta) !important;
  color: var(--accent) !important;
  font-weight: 700 !important;
  padding: 8px 20px !important;
  border-radius: 8px !important;
  font-size: 0.875rem !important;
}

.btn-post:hover {
  background: var(--cta-hover) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255,206,50,0.35) !important;
}

main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 2rem 3rem;
  min-height: calc(100vh - 120px);
}

.hero {
  text-align: center;
  padding: 2.5rem 0 2rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(35,229,219,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,47,52,0.06);
  border: 1px solid rgba(0,47,52,0.15);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}

.hero h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 0.9rem;
  color: var(--accent);
}

.hero h1 em {
  font-style: normal;
  color: #007c85;
}

.hero p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 460px;
  margin: 0 auto 1.5rem;
}

.filters {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-right: 4px;
}

.filter-btn {
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,47,52,0.04);
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
}

.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.item-card {
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  animation: fadeUp 0.35s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.item-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.card-image {
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
  background: #eef2f3;
}

.card-image-placeholder {
  width: 100%;
  height: 190px;
  background: #eef2f3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
  color: #b0bec5;
}

.card-body { padding: 0.85rem 1rem 1rem; }

.card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 0.35rem;
}

.badge {
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 4px;
}

.badge-cat {
  background: #e8f4f5;
  color: #007c85;
  border: 1px solid #b2dde0;
}

.badge-cond {
  background: #ecfdf5;
  color: var(--success);
  border: 1px solid #bbf7d0;
}

.badge-cond.used {
  background: #fff7ed;
  color: #c2410c;
  border-color: #fed7aa;
}

.card-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.card-exchange {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 5px;
}

.card-exchange::before {
  content: '⇄';
  color: #007c85;
  font-size: 0.95rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 9px 18px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0,47,52,0.2);
}

.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1.5px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0,47,52,0.04);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: #fff;
}

.btn-danger {
  background: #fef2f2;
  color: var(--danger);
  border: 1.5px solid #fecaca;
}

.btn-danger:hover { background: #fee2e2; }

.empty-state {
  text-align: center;
  padding: 5rem 2rem;
  grid-column: 1/-1;
}

.empty-icon { font-size: 3.5rem; margin-bottom: 1rem; }
.empty-state h3 { font-family: 'Plus Jakarta Sans', sans-serif; font-size: 1.2rem; margin-bottom: 0.5rem; color: var(--accent); }
.empty-state p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; }

.page-header { margin-bottom: 2rem; }

.page-header h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: -0.04em;
  margin-bottom: 0.3rem;
  color: var(--accent);
}

.page-header p { color: var(--text-muted); }

.form-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 680px;
  box-shadow: var(--shadow);
}

.form-grid { display: grid; gap: 1.2rem; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
}

input, select, textarea {
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  padding: 10px 14px;
  transition: var(--transition);
  outline: none;
  width: 100%;
  appearance: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(0,47,52,0.07);
}

input::placeholder, textarea::placeholder { color: var(--text-dim); }
textarea { resize: vertical; min-height: 100px; }

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

.image-upload-area {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  background: var(--surface2);
}

.image-upload-area:hover {
  border-color: var(--accent);
  background: rgba(0,47,52,0.03);
}

.image-upload-area input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
  padding: 0;
  border: none;
}

.upload-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.upload-text { font-size: 0.875rem; color: var(--text-muted); }
.upload-text strong { color: var(--accent); }

#image-preview {
  margin-top: 1rem;
  border-radius: var(--radius);
  overflow: hidden;
  display: none;
  border: 1.5px solid var(--border);
}

#image-preview img { width: 100%; max-height: 200px; object-fit: cover; display: block; }

.form-actions { display: flex; gap: 1rem; margin-top: 0.5rem; }
.form-actions .btn { flex: 1; padding: 12px; }

.details-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.details-image-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1.5px solid var(--border);
  background: #eef2f3;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
}

.details-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.details-image-placeholder { font-size: 5rem; color: #b0bec5; }
.details-info { display: flex; flex-direction: column; gap: 1.1rem; }
.details-meta { display: flex; flex-wrap: wrap; gap: 6px; }

.details-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  letter-spacing: -0.04em;
  line-height: 1.2;
  color: var(--accent);
}

.details-section {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.details-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.details-section-value { font-size: 0.95rem; color: var(--text); }

.exchange-box {
  background: #e8f4f5;
  border: 1.5px solid #b2dde0;
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.exchange-icon { font-size: 1.5rem; flex-shrink: 0; }
.exchange-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: #007c85;
  margin-bottom: 2px;
}

.exchange-value { font-weight: 700; font-size: 0.95rem; color: var(--accent); }
.details-actions { display: flex; flex-direction: column; gap: 10px; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 100%;
  max-width: 460px;
  position: relative;
  box-shadow: 0 8px 40px rgba(0,0,0,0.14);
  animation: modalIn 0.22s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes modalIn {
  from { transform: scale(0.93) translateY(16px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.modal-subtitle { font-size: 0.85rem; color: var(--text-muted); margin-top: 2px; }

.modal-close {
  background: var(--surface2);
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  width: 30px;
  height: 30px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  flex-shrink: 0;
  transition: var(--transition);
  padding: 0;
}

.modal-close:hover { background: var(--border); color: var(--text); }
.modal-form { display: flex; flex-direction: column; gap: 1rem; }

.requests-list { display: flex; flex-direction: column; gap: 12px; }

.request-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
  transition: var(--transition);
  animation: fadeUp 0.3s ease both;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.request-card:hover { border-color: var(--accent); box-shadow: var(--shadow); }

.request-item-name {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
  color: var(--accent);
}

.request-your-item {
  font-size: 0.84rem;
  color: #007c85;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 500;
}

.request-message { font-size: 0.84rem; color: var(--text-muted); margin-bottom: 0.4rem; }
.request-date { font-size: 0.74rem; color: var(--text-dim); }

.status-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
}

.status-pending { background: #fffbeb; color: #d97706; border: 1.5px solid #fde68a; }
.status-accepted { background: #ecfdf5; color: var(--success); border: 1.5px solid #bbf7d0; }
.status-rejected { background: #fef2f2; color: var(--danger); border: 1.5px solid #fecaca; }

.stats-bar {
  display: flex;
  gap: 1px;
  margin-bottom: 1.75rem;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.stat-item { flex: 1; background: var(--surface); padding: 1rem; text-align: center; }

.stat-value {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--accent);
  letter-spacing: -0.03em;
}

.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-top: 2px;
}

.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 0.85rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 300;
  transform: translateX(200%);
  transition: transform 0.32s cubic-bezier(0.34,1.56,0.64,1);
  max-width: 300px;
  box-shadow: var(--shadow-hover);
  color: var(--text);
}

.toast.show { transform: translateX(0); }
.toast.error { border-left-color: var(--danger); }

footer {
  border-top: 1.5px solid var(--border);
  padding: 1.5rem 2rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  background: var(--surface);
}

footer span { color: var(--text-muted); }
footer a { color: #007c85; text-decoration: none; }
footer a:hover { text-decoration: underline; }

.section-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.section-top h2 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.count-chip {
  background: #e8f4f5;
  border: 1.5px solid #b2dde0;
  color: #007c85;
  font-size: 0.73rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
}

.search-wrap { position: relative; max-width: 300px; width: 100%; }

.search-wrap input {
  padding-left: 36px;
  height: 40px;
  font-size: 0.875rem;
  background: var(--surface);
  border-color: var(--border-strong);
}

.search-wrap input:focus { border-color: var(--accent); background: #fff; }

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  main { padding: 1.25rem 1rem 2.5rem; }
  header { padding: 0 1rem; }
  .hero h1 { font-size: 1.75rem; }
  .details-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  nav a:not(.btn-post) { display: none; }
  .nav-mobile { display: flex; }
  .request-card { grid-template-columns: 1fr; }
  .stats-bar { flex-direction: column; gap: 1px; }
}