/* ============================================================
   LottoStat — style.css
   ============================================================ */

/* ===== RESET & ROOT VARIABLES ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* backgrounds */
  --bg:  #0d0d12;
  --bg2: #13131b;
  --bg3: #1a1a24;

  /* borders */
  --border:  rgba(255, 255, 255, 0.07);
  --border2: rgba(255, 255, 255, 0.12);

  /* accent colors */
  --gold:      #d4a841;
  --gold-dim:  rgba(212, 168, 65, 0.12);
  --red:       #e05252;
  --red-dim:   rgba(224, 82, 82, 0.12);
  --blue:      #4a9fd8;
  --blue-dim:  rgba(74, 159, 216, 0.12);
  --green:     #4aae82;
  --green-dim: rgba(74, 174, 130, 0.12);

  /* text */
  --text:  #e8e6e0;
  --text2: #8a8880;
  --text3: #5a5856;

  /* radii */
  --radius:  10px;
  --radius2: 16px;
}

html {
  scroll-behavior: smooth;
}

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

/* ===== HEADER ===== */
header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
}

.api-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid rgba(74, 174, 130, 0.25);
  border-radius: 20px;
  padding: 3px 10px;
}

.api-dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ===== NAV TABS ===== */
nav {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
}

nav::-webkit-scrollbar {
  display: none;
}

.nav-tab {
  padding: 14px 20px;
  font-size: 13px;
  font-weight: 500;
  font-family: 'Sarabun', sans-serif;
  color: var(--text3);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.nav-tab:hover  { color: var(--text2); }
.nav-tab.active { color: var(--gold); border-bottom-color: var(--gold); }

/* ===== MAIN LAYOUT ===== */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.section { display: none; }
.section.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== LOADER ===== */
.loader-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 0;
  gap: 16px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loader-text {
  color: var(--text3);
  font-size: 14px;
}

/* ===== ERROR BOX ===== */
.error-box {
  background: var(--red-dim);
  border: 1px solid rgba(224, 82, 82, 0.25);
  border-radius: var(--radius2);
  padding: 28px;
  text-align: center;
}

.error-box h3 {
  color: var(--red);
  margin-bottom: 8px;
  font-size: 18px;
}

.error-box p {
  color: var(--text2);
  font-size: 13px;
  line-height: 1.8;
  white-space: pre-line;
}

.retry-btn {
  margin-top: 16px;
  padding: 10px 24px;
  background: var(--red-dim);
  border: 1px solid rgba(224, 82, 82, 0.3);
  border-radius: var(--radius);
  color: var(--red);
  font-family: 'Sarabun', sans-serif;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
}

.retry-btn:hover { background: rgba(224, 82, 82, 0.2); }

/* ===== HERO RESULT CARD ===== */
.result-hero {
  background: linear-gradient(135deg, #1a1508 0%, #0d0d12 100%);
  border: 1px solid rgba(212, 168, 65, 0.25);
  border-radius: var(--radius2);
  padding: 28px 32px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}

.result-hero::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 160px; height: 160px;
  background: radial-gradient(circle, rgba(212,168,65,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.result-date  { font-size: 12px; color: var(--text3); margin-bottom: 8px; }
.result-label { font-size: 11px; color: var(--gold); opacity: 0.7; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 8px; }

.prize-1 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 48px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 6px;
  line-height: 1;
  margin-bottom: 4px;
}

.prize-sub {
  font-size: 11px;
  color: var(--gold);
  opacity: 0.5;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.prizes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.pi-label    { font-size: 11px; color: var(--text3); margin-bottom: 6px; }
.prize-nums  { display: flex; gap: 6px; flex-wrap: wrap; }

.pnum {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 6px;
  letter-spacing: 1px;
}

.p2top  { background: rgba(74,159,216,0.15); color: #7ac0ec; border: 1px solid rgba(74,159,216,0.2); }
.p2bot  { background: rgba(74,174,130,0.15); color: #7acca8; border: 1px solid rgba(74,174,130,0.2); }
.p3     { background: rgba(212,168,65,0.1);  color: var(--gold); border: 1px solid rgba(212,168,65,0.15); }
.pnear  { background: var(--bg3); color: var(--text2); border: 1px solid var(--border); font-size: 13px; }

/* ===== MINI STAT CARDS ===== */
.mini-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.mini-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.mc-label { font-size: 11px; color: var(--text3); margin-bottom: 8px; }
.mc-val   { font-size: 26px; font-weight: 700; font-family: 'IBM Plex Mono', monospace; }
.mc-sub   { font-size: 11px; color: var(--text3); margin-top: 4px; }

/* ===== GENERIC CARD ===== */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 20px 24px;
  margin-bottom: 16px;
}

/* ===== FILTER BUTTONS ===== */
.filter-row { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }

.filter-btn {
  padding: 7px 16px;
  font-size: 12px;
  font-family: 'Sarabun', sans-serif;
  font-weight: 500;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  color: var(--text2);
  transition: all 0.15s;
}

.filter-btn:hover  { border-color: var(--border2); color: var(--text); }
.filter-btn.active { background: var(--gold-dim); border-color: rgba(212,168,65,0.4); color: var(--gold); }

/* ===== LEGEND ===== */
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--text3); }
.legend-sq   { width: 12px; height: 12px; border-radius: 2px; }

/* ===== FREQUENCY LIST ===== */
.freq-list  { display: flex; flex-direction: column; gap: 7px; }
.freq-item  { display: flex; align-items: center; gap: 12px; }
.freq-rank  { font-size: 10px; color: var(--text3); width: 18px; text-align: right; }
.freq-digit { font-family: 'IBM Plex Mono', monospace; font-size: 16px; font-weight: 600; width: 40px; color: var(--text); }

.freq-bar-bg   { flex: 1; background: var(--bg3); border-radius: 3px; height: 18px; overflow: hidden; }
.freq-bar-fill { height: 100%; border-radius: 3px; transition: width 0.5s ease; }

.bar-hot4 { background: linear-gradient(90deg, #c0392b, #e05252); }
.bar-hot3 { background: linear-gradient(90deg, #c47019, #e8963a); }
.bar-mid  { background: linear-gradient(90deg, #2c6e49, #4aae82); }
.bar-cold { background: linear-gradient(90deg, #1a3a5c, #4a9fd8); }
.bar-zero { background: var(--bg3); }

.freq-count { font-size: 12px; color: var(--text3); width: 56px; text-align: right; font-family: 'IBM Plex Mono', monospace; }

.freq-badge { font-size: 10px; padding: 2px 7px; border-radius: 10px; font-weight: 500; width: 56px; text-align: center; }
.badge-fire   { background: var(--red-dim);               color: var(--red); }
.badge-warm   { background: rgba(232,150,58,0.15);         color: #e8963a; }
.badge-normal { background: var(--green-dim);              color: var(--green); }
.badge-cold   { background: var(--blue-dim);               color: var(--blue); }
.badge-zero   { background: var(--bg3); color: var(--text3); border: 1px solid var(--border); }

/* ===== HEATMAP ===== */
.heatmap-wrap { overflow-x: auto; }
.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
  min-width: 380px;
}

.hm-cell {
  aspect-ratio: 1;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  font-family: 'IBM Plex Mono', monospace;
  cursor: default;
  transition: transform 0.1s;
}

.hm-cell:hover { transform: scale(1.15); z-index: 1; position: relative; }

/* ===== TOP LIST ===== */
.top-list { display: flex; flex-direction: column; gap: 8px; }

.top-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  transition: border-color 0.15s;
}

.top-item:hover { border-color: var(--border2); }

.top-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 20px;
  font-weight: 600;
  color: var(--gold);
  min-width: 48px;
}

.top-bar-wrap { flex: 1; background: var(--bg); border-radius: 3px; height: 5px; }
.top-bar      { height: 100%; border-radius: 3px; }
.bar-gold     { background: var(--gold); }
.bar-blue     { background: var(--blue); }

/* ===== CHECK NUMBER ===== */
.check-wrap      { max-width: 480px; }
.check-input-row { display: flex; gap: 10px; margin-bottom: 20px; }

.num-input {
  flex: 1;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 14px 20px;
  font-size: 28px;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  color: var(--gold);
  text-align: center;
  letter-spacing: 8px;
  outline: none;
  transition: border-color 0.2s;
}

.num-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212,168,65,0.1);
}

.check-btn {
  padding: 14px 24px;
  background: var(--gold-dim);
  border: 1px solid rgba(212,168,65,0.35);
  border-radius: var(--radius);
  color: var(--gold);
  font-size: 14px;
  font-family: 'Sarabun', sans-serif;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
}

.check-btn:hover { background: rgba(212,168,65,0.2); }

.check-tabs { display: flex; gap: 8px; margin-bottom: 16px; }

.check-tab {
  padding: 7px 16px;
  font-size: 12px;
  font-family: 'Sarabun', sans-serif;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  color: var(--text2);
  transition: all 0.15s;
  font-weight: 500;
}

.check-tab.active { background: var(--blue-dim); border-color: rgba(74,159,216,0.35); color: var(--blue); }

.result-panel {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 20px;
}

.result-num-big {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 56px;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 8px;
  margin-bottom: 8px;
}

.stat-rows { display: flex; flex-direction: column; }

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.stat-row:last-child { border-bottom: none; }
.stat-row-label      { color: var(--text2); }
.stat-row-val        { font-weight: 600; font-family: 'IBM Plex Mono', monospace; }

/* ===== STATUS TAGS ===== */
.tag      { display: inline-block; padding: 2px 9px; border-radius: 10px; font-size: 11px; font-weight: 600; }
.tag-hot  { background: var(--red-dim);               color: var(--red); }
.tag-warm { background: rgba(232,150,58,0.15);         color: #e8963a; }
.tag-cold { background: var(--blue-dim);               color: var(--blue); }
.tag-normal { background: var(--green-dim);            color: var(--green); }
.tag-zero { background: var(--bg3); color: var(--text3); border: 1px solid var(--border); }

/* ===== HISTORY LIST (in check tab) ===== */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
  max-height: 260px;
  overflow-y: auto;
}

.history-list::-webkit-scrollbar       { width: 4px; }
.history-list::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

.hist-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 12px;
  background: var(--bg2);
  border-radius: 6px;
  font-size: 13px;
}

.hist-date { color: var(--text3); font-size: 12px; }
.hist-win  { color: var(--gold); font-family: 'IBM Plex Mono', monospace; font-weight: 600; }

/* ===== HISTORY TABLE ===== */
.history-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius2); overflow: hidden; }

.htable { width: 100%; border-collapse: collapse; font-size: 14px; }
.htable thead { background: var(--bg3); }

.htable th {
  padding: 12px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text3);
  border-bottom: 1px solid var(--border);
}

.htable td              { padding: 13px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.htable tr:last-child td { border-bottom: none; }
.htable tr:hover td     { background: var(--bg3); }

.td-date { color: var(--text2); font-size: 13px; }
.td-p1   { font-family: 'IBM Plex Mono', monospace; font-size: 15px; font-weight: 600; color: var(--gold); letter-spacing: 2px; }
.td-2t   { font-family: 'IBM Plex Mono', monospace; font-weight: 600; color: #7ac0ec; }
.td-2b   { font-family: 'IBM Plex Mono', monospace; font-weight: 600; color: #7acca8; }
.td-3    { font-family: 'IBM Plex Mono', monospace; font-size: 13px; color: var(--text2); }

/* ===== SECTION HEADER ===== */
.sec-head  { margin-bottom: 20px; }
.sec-title { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.sec-sub   { font-size: 13px; color: var(--text3); }

/* ===== DISCLAIMER ===== */
.disclaimer {
  margin-top: 24px;
  padding: 12px 16px;
  background: rgba(224, 82, 82, 0.05);
  border: 1px solid rgba(224, 82, 82, 0.12);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--text3);
  line-height: 1.6;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  main          { padding: 20px 16px 48px; }
  .result-hero  { padding: 20px; }
  .prize-1      { font-size: 32px; letter-spacing: 3px; }
  header        { padding: 0 16px; }
  nav           { padding: 0 8px; }
  .nav-tab      { padding: 12px 12px; font-size: 12px; }
}

/* ===== PERIOD SELECTOR ===== */
.period-selector-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding: 12px 16px;
  background: var(--card);
  border-radius: 10px;
  border: 1px solid var(--border);
}
.period-label {
  font-size: 13px;
  color: var(--text2);
  white-space: nowrap;
}
.period-select {
  flex: 1;
  background: var(--bg);
  color: var(--text1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  font-family: 'Sarabun', sans-serif;
  cursor: pointer;
  outline: none;
  appearance: none;
  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='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.period-select:focus {
  border-color: var(--gold);
}
.period-select option {
  background: #1a1a28;
  color: var(--text1);
}

/* ===== MONTHLY ANALYSIS ===== */
.predict-hero {
  background: linear-gradient(135deg, #0d1a2a 0%, #0d0d12 100%);
  border: 1px solid rgba(74,159,216,0.3);
  border-radius: var(--radius2);
  padding: 24px 28px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.predict-hero::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(74,159,216,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.predict-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.predict-sub {
  font-size: 12px;
  color: var(--text3);
  margin-bottom: 16px;
}

.predict-nums {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.predict-num-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.predict-badge {
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 8px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.pb-rank1 { background: rgba(212,168,65,0.2); color: var(--gold); }
.pb-rank2 { background: rgba(74,159,216,0.15); color: var(--blue); }
.pb-rank3 { background: rgba(74,174,130,0.15); color: var(--green); }

.predict-num-box {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 28px;
  font-weight: 700;
  padding: 12px 18px;
  border-radius: var(--radius);
  letter-spacing: 4px;
  border: 2px solid;
}

.pn-gold  { background: rgba(212,168,65,0.12); color: var(--gold);  border-color: rgba(212,168,65,0.35); }
.pn-blue  { background: rgba(74,159,216,0.1);  color: var(--blue);  border-color: rgba(74,159,216,0.3); }
.pn-green { background: rgba(74,174,130,0.1);  color: var(--green); border-color: rgba(74,174,130,0.3); }
.pn-dim   { background: var(--bg3); color: var(--text2); border-color: var(--border); font-size: 22px; }

.predict-note {
  font-size: 11px;
  color: var(--text3);
  font-style: italic;
}

/* Monthly chart bars */
.month-bar-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 8px;
}

.month-bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}

.month-bar-label { width: 60px; color: var(--text3); font-size: 11px; }
.month-bar-track { flex: 1; background: var(--bg3); border-radius: 3px; height: 20px; overflow: hidden; position: relative; }
.month-bar-fill  { height: 100%; border-radius: 3px; transition: width 0.6s ease; display: flex; align-items: center; padding-left: 8px; }
.month-bar-text  { font-size: 10px; font-family: 'IBM Plex Mono', monospace; color: rgba(255,255,255,0.8); white-space: nowrap; }
.month-bar-count { width: 40px; text-align: right; color: var(--text2); font-size: 11px; font-family: 'IBM Plex Mono', monospace; }

.month-chip {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 5px;
  margin: 2px 3px;
  letter-spacing: 1px;
}

.chip-hot  { background: rgba(224,82,82,0.15); color: var(--red); border: 1px solid rgba(224,82,82,0.2); }
.chip-warm { background: rgba(232,150,58,0.15); color: #e8963a; border: 1px solid rgba(232,150,58,0.2); }
.chip-norm { background: var(--bg3); color: var(--text2); border: 1px solid var(--border); }