/* oly2.com — Global Styles */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:   #6366f1;
  --primary-h: #4f46e5;
  --danger:    #ef4444;
  --bg:        #f4f4f8;
  --bg2:       #ffffff;
  --bg3:       #f1f1f5;
  --border:    #e2e2ea;
  --text:      #18181b;
  --text-m:    #52525b;
  --text-s:    #a1a1aa;
  --radius:    10px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Navbar */
.navbar {
  background: var(--primary);
  border-bottom: 1px solid var(--primary-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 56px;
  position: sticky; top: 0; z-index: 100;
}
.brand { font-size: 1.2rem; font-weight: 700; color: #fff; text-decoration: none; }
.nav-links { display: flex; gap: 1rem; }
.nav-links a { color: rgba(255,255,255,0.8); font-size: 0.9rem; }
.nav-links a:hover, .nav-links a.active { color: #fff; text-decoration: none; }

/* Container */
.container { max-width: 1100px; margin: 0 auto; padding: 2rem 1rem; }

/* Card */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.card h2 { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; color: var(--text-m); text-transform: uppercase; letter-spacing: .05em; }
.card h3 { font-size: 0.9rem; font-weight: 600; margin-bottom: 0.75rem; color: var(--text-m); }

/* Form */
.form-row {
  display: grid;
  grid-template-columns: 1fr 200px 200px auto;
  gap: 0.75rem;
  align-items: start;
}
@media (max-width: 768px) { .form-row { grid-template-columns: 1fr; } }

input[type="url"], input[type="text"], input[type="password"] {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.6rem 0.9rem;
  font-size: 0.9rem;
  outline: none;
  transition: border-color .15s;
  -webkit-appearance: none;
}
input:focus { border-color: var(--primary); }

/* Buttons */
button, .btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, opacity .15s;
  display: inline-block;
  white-space: nowrap;
  text-decoration: none;
}
button:hover, .btn:hover { background: var(--primary-h); text-decoration: none; }
button:disabled { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #dc2626; }
.btn-active { background: var(--primary-h); box-shadow: 0 0 0 2px var(--primary); }
.btn-copy { background: var(--bg3); border: 1px solid var(--border); color: var(--text-m); padding: 0.2rem 0.5rem; font-size: 0.8rem; }
.btn-copy:hover { background: var(--border); }

/* Result Box */
.result-box {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg3);
  border: 1px solid #22c55e44;
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
}
.result-box.error { border-color: #ef444444; color: var(--danger); }
.hidden { display: none; }

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
@media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}
.stat-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 0.8rem; color: var(--text-m); margin-top: 0.25rem; }

/* Grid 3 */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
@media (max-width: 768px) { .grid-3 { grid-template-columns: 1fr; } }

/* Bar Chart */
.bar-row {
  display: grid;
  grid-template-columns: 90px 1fr 40px;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  font-size: 0.85rem;
}
.bar-wrap { background: var(--bg3); border-radius: 99px; height: 8px; overflow: hidden; }
.bar { background: var(--primary); height: 100%; border-radius: 99px; min-width: 2px; }
.bar-row span:last-child { text-align: right; color: var(--text-m); }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th { text-align: left; padding: 0.6rem 0.75rem; color: var(--text-m); font-weight: 500; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--border)33; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg3); }

.short-url { font-weight: 500; color: var(--primary); }
.link-title { font-size: 0.8rem; color: var(--text-m); }
.original-url { color: var(--text-s); max-width: 300px; }
.clicks { font-weight: 600; }
.clicks a { color: var(--text); }
.date { color: var(--text-s); font-size: 0.8rem; white-space: nowrap; }
.empty { color: var(--text-s); text-align: center; padding: 2rem; }

/* Page Header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.page-header h1 { font-size: 1.4rem; }
.page-header .sub { color: var(--text-m); font-size: 0.85rem; margin-top: 0.25rem; }
.date-filter { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

/* Login */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2.5rem;
  width: 100%;
  max-width: 380px;
  text-align: center;
}
.login-box h1 { font-size: 1.8rem; margin-bottom: 0.25rem; }
.login-box p { color: var(--text-m); margin-bottom: 1.5rem; }
.login-box form { display: flex; flex-direction: column; gap: 0.75rem; }
.login-box button { width: 100%; padding: 0.75rem; }
.error { color: var(--danger); font-size: 0.85rem; }

/* Filter wrap */
.filter-wrap { display: flex; flex-direction: column; gap: 0.5rem; align-items: flex-end; }
.custom-range { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
.custom-range input[type="date"] {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); padding: 0.45rem 0.7rem;
  font-size: 0.85rem; outline: none;
}
.custom-range input[type="date"]:focus { border-color: var(--primary); }

/* Realtime */
.btn-realtime { background: #ede9fe; border: 1px solid #c4b5fd; color: #6366f1; }
.btn-realtime:hover, .btn-realtime.btn-active { background: #6366f1; color: #fff; }

.realtime-bar {
  display: flex; align-items: center; gap: 0.75rem;
  background: #f0fdf4; border: 1px solid #bbf7d0;
  border-radius: var(--radius); padding: 0.9rem 1.25rem;
  margin-bottom: 1.5rem; font-size: 0.95rem;
}
.realtime-bar strong { font-size: 1.5rem; color: #22c55e; }
.rt-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34,197,94,.5);
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,.5); }
  70%  { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}
.rt-updated { margin-left: auto; font-size: 0.8rem; color: var(--text-s); }

/* Edit button */
.btn-edit { background: #f0f9ff; border: 1px solid #bae6fd; color: #0284c7; }
.btn-edit:hover { background: #e0f2fe; }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.35);
  display: flex; align-items: center; justify-content: center; z-index: 200;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 14px; padding: 2rem; width: 100%; max-width: 480px;
  box-shadow: 0 20px 60px rgba(0,0,0,.15);
}
.modal h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1.25rem; color: var(--text); }
.modal-field { margin-bottom: 1rem; }
.modal-field label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-m); margin-bottom: 0.35rem; text-transform: uppercase; letter-spacing: .04em; }
.input-prefix { display: flex; align-items: center; background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.input-prefix span { padding: 0.6rem 0.7rem; font-size: 0.85rem; color: var(--text-m); white-space: nowrap; border-right: 1px solid var(--border); }
.input-prefix input { border: none; background: transparent; flex: 1; }
.input-prefix input:focus { outline: none; }
.modal-actions { display: flex; gap: 0.75rem; margin-top: 1.25rem; }
.modal-actions .btn { flex: 1; justify-content: center; }
.btn-ghost { background: var(--bg3); color: var(--text-m); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--border); }

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  z-index: 999;
  animation: fadeIn .2s;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }