/* ─────────────────────────────────────────────
   WhatsApp Hub — Stylesheet
   Light: green + white  |  Dark: black + green
───────────────────────────────────────────── */

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

/* ── Variables ── */
:root {
  --wa-green: #25D366;
  --wa-dark-green: #128C7E;
  --wa-light-green: #DCF8C6;
  --wa-teal: #075E54;

  /* Light mode */
  --bg: #f5faf7;
  --bg-card: #ffffff;
  --bg-nav: #ffffff;
  --bg-input: #f0f7f4;
  --text: #0d1f17;
  --text-muted: #4a7060;
  --text-light: #7aaa93;
  --border: #d0ead9;
  --shadow: 0 2px 16px rgba(18, 140, 126, 0.10);
  --shadow-hover: 0 8px 32px rgba(18, 140, 126, 0.18);
  --accent: var(--wa-green);
  --accent-hover: #1db954;
  --badge-group-bg: #dcf8ec;
  --badge-group-text: #0d6e3c;
  --badge-channel-bg: #d4f0ff;
  --badge-channel-text: #0a5f8a;
  --badge-number-bg: #fff3d4;
  --badge-number-text: #8a5a00;
}

[data-theme="dark"] {
  --bg: #0a0f0d;
  --bg-card: #111a15;
  --bg-nav: #0d1610;
  --bg-input: #162019;
  --text: #e8f5ee;
  --text-muted: #7fcca0;
  --text-light: #4a7a5e;
  --border: #1e3328;
  --shadow: 0 2px 16px rgba(37, 211, 102, 0.07);
  --shadow-hover: 0 8px 32px rgba(37, 211, 102, 0.15);
  --accent: var(--wa-green);
  --accent-hover: #2eea74;
  --badge-group-bg: #0d2e1a;
  --badge-group-text: #3de880;
  --badge-channel-bg: #0a1f2e;
  --badge-channel-text: #4dc3f5;
  --badge-number-bg: #2a1f08;
  --badge-number-text: #f5c842;
}

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

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
  line-height: 1.6;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Navigation ── */
nav {
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
  transition: background 0.3s, border-color 0.3s;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--wa-green);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link:hover, .nav-link.active {
  background: var(--bg-input);
  color: var(--accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all 0.2s;
  color: var(--text-muted);
}

.theme-toggle:hover { background: var(--border); color: var(--accent); }

.btn-submit-nav {
  padding: 9px 18px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  letter-spacing: 0.01em;
}

.btn-submit-nav:hover { background: var(--accent-hover); transform: translateY(-1px); }

/* Hamburger */
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  transition: all 0.2s;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ── Page Wrapper ── */
.page { display: none; }
.page.active { display: block; }

/* ── Hero / Home Header ── */
.hero {
  background: linear-gradient(135deg, var(--wa-teal) 0%, var(--wa-dark-green) 50%, #0a3d2e 100%);
  padding: 56px 24px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2325D366' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-inner { position: relative; max-width: 700px; margin: 0 auto; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #c8ffd8;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.15;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.hero h1 span { color: var(--wa-green); }

.hero p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 32px;
}

/* ── Stats Bar ── */
.stats-bar {
  display: flex;
  gap: 0;
  justify-content: center;
  margin-bottom: 0;
}

.stat-item {
  padding: 0 28px;
  border-right: 1px solid rgba(255,255,255,0.15);
  text-align: center;
}

.stat-item:last-child { border-right: none; }

.stat-num {
  font-family: 'Space Mono', monospace;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--wa-green);
  line-height: 1;
}

.stat-label { font-size: 0.75rem; color: rgba(255,255,255,0.55); margin-top: 2px; }

/* ── Controls Bar ── */
.controls-bar {
  max-width: 1100px;
  margin: 28px auto 0;
  padding: 0 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.search-wrap {
  flex: 1;
  min-width: 220px;
  position: relative;
}

.search-wrap svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.4;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 11px 14px 11px 42px;
  border-radius: 12px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-family: inherit;
  font-size: 0.92rem;
  outline: none;
  transition: all 0.2s;
}

.search-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,211,102,0.12); }
.search-input::placeholder { color: var(--text-light); }

.filter-select {
  padding: 11px 14px;
  border-radius: 12px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-family: inherit;
  font-size: 0.88rem;
  outline: none;
  cursor: pointer;
  transition: all 0.2s;
  min-width: 130px;
}

.filter-select:focus { border-color: var(--accent); }

/* Type filter pills */
.type-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.type-pill {
  padding: 8px 16px;
  border-radius: 99px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.83rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 5px;
}

.type-pill:hover { border-color: var(--accent); color: var(--accent); }
.type-pill.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Sort */
.sort-wrap { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.sort-wrap label { font-size: 0.82rem; color: var(--text-muted); white-space: nowrap; }

/* ── Grid ── */
.main-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 24px 64px;
}

.results-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.results-info strong { color: var(--accent); }

.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}

/* ── Card ── */
.link-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow);
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: fadeUp 0.4s ease both;
  position: relative;
  overflow: hidden;
}

.link-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.3s;
}

.link-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: var(--accent); }
.link-card:hover::before { transform: scaleX(1); }

.card-header { display: flex; align-items: flex-start; gap: 12px; }

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.card-icon.group { background: var(--badge-group-bg); }
.card-icon.channel { background: var(--badge-channel-bg); }
.card-icon.number { background: var(--badge-number-bg); }

.card-title-wrap { flex: 1; min-width: 0; }

.card-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge.group { background: var(--badge-group-bg); color: var(--badge-group-text); }
.badge.channel { background: var(--badge-channel-bg); color: var(--badge-channel-text); }
.badge.number { background: var(--badge-number-bg); color: var(--badge-number-text); }

.badge-cat {
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.73rem;
  font-weight: 600;
  background: var(--bg-input);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer { display: flex; align-items: center; gap: 10px; }

.btn-join {
  flex: 1;
  padding: 10px 0;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
  letter-spacing: 0.01em;
}

.btn-join:hover { background: var(--accent-hover); transform: translateY(-1px); }

.btn-copy {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: var(--bg-input);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.2s;
  color: var(--text-muted);
  flex-shrink: 0;
}

.btn-copy:hover { background: var(--border); color: var(--accent); border-color: var(--accent); }

.card-clicks {
  font-size: 0.75rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 3px;
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  grid-column: 1 / -1;
}

.empty-icon { font-size: 3.5rem; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { font-size: 1.2rem; color: var(--text-muted); margin-bottom: 8px; }
.empty-state p { font-size: 0.9rem; color: var(--text-light); }

/* ── Loading ── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-input) 25%, var(--border) 50%, var(--bg-input) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── Submit Page ── */
.submit-page {
  max-width: 640px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.submit-header {
  margin-bottom: 32px;
  text-align: center;
}

.submit-header h2 {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.submit-header p { color: var(--text-muted); font-size: 0.95rem; }

.submit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}

.form-label span { color: var(--accent); }

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1.5px solid var(--border);
  background: var(--bg-input);
  color: var(--text);
  font-family: inherit;
  font-size: 0.92rem;
  outline: none;
  transition: all 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(37,211,102,0.12);
}

.form-input::placeholder, .form-textarea::placeholder { color: var(--text-light); }
.form-textarea { resize: vertical; min-height: 100px; line-height: 1.6; }

.form-hint {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--text-light);
  display: flex;
  align-items: flex-start;
  gap: 4px;
}

/* Type selector cards */
.type-selector { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }

.type-option { display: none; }

.type-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 10px;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: var(--bg-input);
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.type-label:hover { border-color: var(--accent); }
.type-option:checked + .type-label { border-color: var(--accent); background: var(--badge-group-bg); }

.type-emoji { font-size: 1.6rem; }
.type-name { font-size: 0.82rem; font-weight: 700; color: var(--text); }
.type-desc { font-size: 0.72rem; color: var(--text-muted); }

/* Form error */
.field-error {
  margin-top: 5px;
  font-size: 0.78rem;
  color: #ef4444;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Submit button */
.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  letter-spacing: 0.01em;
  margin-top: 8px;
}

.btn-submit:hover:not(:disabled) { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(37,211,102,0.3); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* Guidelines */
.guidelines {
  margin-top: 24px;
  padding: 16px 20px;
  border-radius: 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
}

.guidelines h4 { font-size: 0.85rem; font-weight: 700; color: var(--text); margin-bottom: 10px; }

.guideline-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 0;
}

.guideline-item::before { content: '✓'; color: var(--accent); font-weight: 700; flex-shrink: 0; }

/* ── Toast ── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  animation: toastIn 0.3s ease;
  pointer-events: all;
  max-width: 320px;
}

.toast.success { background: #16a34a; color: #fff; }
.toast.error { background: #dc2626; color: #fff; }
.toast.info { background: var(--wa-dark-green); color: #fff; }

@keyframes toastIn { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(30px); } }

/* ── Admin Panel ── */
.admin-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.admin-header {
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.admin-header h2 { font-size: 1.6rem; font-weight: 800; flex: 1; }

.admin-login {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  max-width: 400px;
  margin: 60px auto;
  text-align: center;
  box-shadow: var(--shadow);
}

.admin-login h2 { margin-bottom: 8px; font-size: 1.4rem; }
.admin-login p { color: var(--text-muted); margin-bottom: 24px; font-size: 0.9rem; }

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.admin-table th {
  text-align: left;
  padding: 14px 16px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--bg-input);
  border-bottom: 1px solid var(--border);
}

.admin-table td {
  padding: 14px 16px;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}

.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--bg-input); }

.admin-actions { display: flex; gap: 6px; }

.btn-sm {
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-approve { background: #16a34a; color: #fff; }
.btn-approve:hover { background: #15803d; }
.btn-delete { background: #fee2e2; color: #dc2626; }
.btn-delete:hover { background: #dc2626; color: #fff; }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--bg-nav);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    gap: 4px;
    z-index: 99;
  }
  .nav-inner { flex-wrap: wrap; }
  .btn-submit-nav span { display: none; }
  .hero { padding: 40px 16px 36px; }
  .stats-bar { gap: 0; }
  .stat-item { padding: 0 16px; }
  .controls-bar { flex-direction: column; align-items: stretch; }
  .sort-wrap { margin-left: 0; justify-content: space-between; }
  .links-grid { grid-template-columns: 1fr; }
  .submit-card { padding: 22px 18px; }
  .type-selector { grid-template-columns: repeat(3, 1fr); }
  .admin-table { font-size: 0.78rem; }
  .admin-table td, .admin-table th { padding: 10px 10px; }
}

@media (max-width: 400px) {
  .stat-item { padding: 0 10px; }
  .type-selector { grid-template-columns: 1fr; }
}