/* ── Reset & Custom Properties ──────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font:          'Inter', system-ui, -apple-system, sans-serif;
  --clr-bg:        #f5f6f8;
  --clr-surface:   #ffffff;
  --clr-border:    #e2e5eb;
  --clr-border-h:  #c9cdd6;
  --clr-text:      #1a1d26;
  --clr-text-sec:  #5f6578;
  --clr-text-tert: #9096a6;
  --clr-primary:   #4f46e5;
  --clr-primary-h: #4338ca;
  --clr-primary-bg:#eef2ff;
  --clr-green:     #059669;
  --clr-green-h:   #047857;
  --clr-green-bg:  #ecfdf5;
  --radius-sm:     6px;
  --radius:        10px;
  --radius-lg:     14px;
  --radius-xl:     20px;
  --shadow-sm:     0 1px 2px rgba(0,0,0,.05);
  --shadow:        0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.04);
  --shadow-lg:     0 4px 24px rgba(0,0,0,.10);
}

body {
  font-family: var(--font);
  background: var(--clr-bg);
  color: var(--clr-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ─────────────────────────────────────── */
header {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
}

.header-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 2rem 1.5rem 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.logo-icon { color: var(--clr-primary); }

.logo h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -.02em;
}

.subtitle {
  margin-top: .35rem;
  font-size: .925rem;
  color: var(--clr-text-sec);
}

/* ── Filter Bar ─────────────────────────────────── */
.filter-bar { margin-top: 1.25rem; }

.search-wrapper { position: relative; }

.search-icon {
  position: absolute;
  left: .85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-text-tert);
  pointer-events: none;
}

#searchInput {
  width: 100%;
  padding: .7rem .9rem .7rem 2.6rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  background: var(--clr-bg);
  font-family: var(--font);
  font-size: .9rem;
  color: var(--clr-text);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}

#searchInput::placeholder { color: var(--clr-text-tert); }

#searchInput:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}

.category-filters {
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
  margin-top: .75rem;
}

.cat-btn {
  padding: .35rem .85rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-xl);
  background: var(--clr-surface);
  color: var(--clr-text-sec);
  font-family: var(--font);
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
}

.cat-btn:hover {
  border-color: var(--clr-border-h);
  color: var(--clr-text);
}

.cat-btn.active {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
  color: #fff;
}

/* ── Main ───────────────────────────────────────── */
main {
  flex: 1;
  max-width: 1040px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
}

.result-count {
  font-size: .8rem;
  font-weight: 500;
  color: var(--clr-text-tert);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

/* ── App Card ───────────────────────────────────── */
.app-card {
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .9rem;
  transition: border-color .2s, box-shadow .2s;
}

.app-card:hover {
  border-color: var(--clr-border-h);
  box-shadow: var(--shadow-lg);
}

.card-top {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
}

.app-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  background: var(--clr-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
  color: var(--clr-primary);
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .02em;
}

.app-icon-wrapper::after {
  content: attr(data-initials);
}

.app-icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  z-index: 1;
}

.app-title-block {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  min-width: 0;
}

.app-title-block h2 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .7rem;
  font-weight: 600;
  padding: .15rem .5rem;
  border-radius: var(--radius-sm);
  width: fit-content;
  text-transform: uppercase;
  letter-spacing: .03em;
}

.badge--link {
  background: var(--clr-primary-bg);
  color: var(--clr-primary);
}

.badge--download {
  background: var(--clr-green-bg);
  color: var(--clr-green);
}

.app-desc {
  font-size: .875rem;
  line-height: 1.6;
  color: var(--clr-text-sec);
  flex: 1;
}

.card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-top: auto;
  padding-top: .75rem;
  border-top: 1px solid var(--clr-border);
}

.app-meta {
  display: flex;
  gap: .35rem;
}

.meta-chip {
  font-size: .7rem;
  font-weight: 500;
  padding: .2rem .5rem;
  border-radius: var(--radius-sm);
  background: var(--clr-bg);
  color: var(--clr-text-tert);
  border: 1px solid var(--clr-border);
}

.meta-chip--cat {
  color: var(--clr-primary);
  background: var(--clr-primary-bg);
  border-color: transparent;
}

.app-action {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1rem;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: .8rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background .15s, transform .1s;
}

.app-action:active { transform: scale(.97); }

.action--link {
  background: var(--clr-primary);
  color: #fff;
}

.action--link:hover { background: var(--clr-primary-h); }

.action--download {
  background: var(--clr-green);
  color: #fff;
}

.action--download:hover { background: var(--clr-green-h); }

/* ── Donate Section ─────────────────────────────── */
.donate-section {
  max-width: 1040px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem 2rem;
}

.donate-inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: linear-gradient(135deg, #fef9f0 0%, #fdf2f8 100%);
  border: 1.5px solid #f3d9b1;
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
}

.donate-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #d97706;
  box-shadow: var(--shadow-sm);
}

.donate-content { flex: 1; min-width: 0; }

.donate-title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: .2rem;
}

.donate-text {
  font-size: .85rem;
  color: var(--clr-text-sec);
  line-height: 1.5;
}

.donate-btn {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .65rem 1.3rem;
  border-radius: var(--radius);
  background: #d97706;
  color: #fff;
  font-family: var(--font);
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background .15s, transform .1s;
  box-shadow: var(--shadow-sm);
}

.donate-btn:hover { background: #b45309; }
.donate-btn:active { transform: scale(.97); }

/* ── States ─────────────────────────────────────── */
.hidden { display: none !important; }

.loading-state,
.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--clr-text-tert);
}

.empty-icon {
  color: var(--clr-border-h);
  margin-bottom: .75rem;
}

.empty-state p {
  font-size: .95rem;
  font-weight: 500;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--clr-border);
  border-top-color: var(--clr-primary);
  border-radius: 50%;
  margin: 0 auto 1rem;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.error-state { text-align: center; padding: 3rem 1rem; }
.error-title { font-weight: 600; color: #dc2626; margin-bottom: .3rem; }
.error-detail { font-size: .85rem; color: var(--clr-text-tert); }

/* ── Footer ─────────────────────────────────────── */
footer {
  text-align: center;
  padding: 1.25rem 1.5rem;
  font-size: .8rem;
  color: var(--clr-text-tert);
  border-top: 1px solid var(--clr-border);
  background: var(--clr-surface);
}

.footer-inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.footer-link {
  background: none;
  border: none;
  font-family: var(--font);
  font-size: .8rem;
  color: var(--clr-text-tert);
  cursor: pointer;
  padding: .25rem .5rem;
  border-radius: var(--radius-sm);
  transition: color .15s, background .15s;
}

.footer-link:hover {
  color: var(--clr-primary);
  background: var(--clr-primary-bg);
}

.footer-sep {
  width: 1px;
  height: 14px;
  background: var(--clr-border);
}

/* ── Modal ──────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 17, 23, .45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 1rem;
  overflow-y: auto;
}

.modal {
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 720px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, .15);
  animation: modal-in .2s ease-out;
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--clr-border);
}

.modal-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -.01em;
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  background: var(--clr-surface);
  color: var(--clr-text-sec);
  cursor: pointer;
  transition: all .15s;
}

.modal-close:hover {
  background: var(--clr-bg);
  color: var(--clr-text);
  border-color: var(--clr-border-h);
}

.modal-body {
  padding: 1.5rem;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-body h3 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-top: 1.75rem;
  margin-bottom: .5rem;
  padding-bottom: .4rem;
  border-bottom: 1px solid var(--clr-border);
}

.modal-body h3:first-child { margin-top: 0; }

.modal-body h4 {
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-top: 1.25rem;
  margin-bottom: .35rem;
}

.modal-body p {
  font-size: .85rem;
  line-height: 1.7;
  color: var(--clr-text-sec);
  margin-bottom: .6rem;
}

.modal-body ul {
  margin: .5rem 0 .75rem 1.25rem;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--clr-text-sec);
}

.modal-body li { margin-bottom: .15rem; }

.modal-body a {
  color: var(--clr-primary);
  text-decoration: none;
  font-weight: 500;
}

.modal-body a:hover { text-decoration: underline; }

.modal-body strong { color: var(--clr-text); font-weight: 600; }

.legal-date {
  margin-top: 2rem;
  padding-top: .75rem;
  border-top: 1px solid var(--clr-border);
  font-size: .8rem !important;
  color: var(--clr-text-tert) !important;
  font-weight: 500;
}

.modal-body::-webkit-scrollbar { width: 6px; }
.modal-body::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 3px; }
.modal-body::-webkit-scrollbar-thumb:hover { background: var(--clr-border-h); }

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 600px) {
  .header-inner { padding: 1.5rem 1rem 1.25rem; }
  main { padding: 1rem; }
  .app-grid { grid-template-columns: 1fr; }
  .card-bottom { flex-direction: column; align-items: stretch; }
  .app-action { justify-content: center; }

  .donate-section { padding: 0 1rem 1.5rem; }
  .donate-inner { flex-direction: column; text-align: center; padding: 1.25rem; }
  .donate-btn { width: 100%; justify-content: center; }

  .modal-overlay { padding: .75rem; }
  .modal-header { padding: 1rem 1.25rem; }
  .modal-body { padding: 1.25rem; max-height: 75vh; }

  .footer-inner { flex-direction: column; text-align: center; }
}