/* ===================================================================
   LỊCH VẠN NIÊN — Bảng màu: Giấy điều (#C0392B đỏ son), Vàng kim
   (#D4A B4 - nến/đồng tiền cổ), Mực đen (#1C1410), Ngà (#F5EDE1)
   ================================================================ */

:root {
  --son-do: #A8312A;
  --son-do-dam: #7E2017;
  --vang-kim: #C99A3E;
  --vang-nhat: #E8C97A;
  --muc-den: #211712;
  --ngu-gia: #4A3B2F;
  --nga: #F4ECDC;
  --nga-dam: #E9DCC2;
  --giay-cu: #FBF6EA;
  --xanh-luc: #3F6E52;
  --do-canh-bao: #8C2F22;

  --font-display: "Noto Serif", "Times New Roman", serif;
  --font-body: "Be Vietnam Pro", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--giay-cu);
  color: var(--muc-den);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body {
  background-image:
    radial-gradient(circle at 10% 5%, rgba(169, 49, 42, 0.04), transparent 40%),
    radial-gradient(circle at 95% 90%, rgba(201, 154, 62, 0.06), transparent 45%);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

/* ---------- Layout ---------- */
.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 64px;
}

.site-header {
  background: linear-gradient(180deg, var(--son-do) 0%, var(--son-do-dam) 100%);
  color: var(--nga);
  padding: 28px 20px 34px;
  position: relative;
  overflow: hidden;
}

.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    135deg,
    rgba(212, 175, 110, 0.05) 0px,
    rgba(212, 175, 110, 0.05) 2px,
    transparent 2px,
    transparent 14px
  );
  pointer-events: none;
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.site-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 40px);
  margin: 0;
  letter-spacing: 0.5px;
}

.site-title .nho {
  display: block;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--vang-nhat);
  margin-bottom: 4px;
  opacity: 0.9;
}

.dau-trien {
  width: 64px;
  height: 64px;
  border: 2px solid var(--vang-kim);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--vang-nhat);
  flex-shrink: 0;
  background: rgba(0,0,0,0.1);
}

/* ---------- Today Hero Card ---------- */
.hom-nay {
  margin-top: -30px;
  position: relative;
  z-index: 2;
  background: var(--giay-cu);
  border: 1px solid var(--nga-dam);
  border-radius: 14px;
  box-shadow: 0 18px 40px -20px rgba(33, 23, 18, 0.35), 0 1px 0 rgba(255,255,255,0.6) inset;
  padding: 28px 28px 24px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: center;
}

@media (max-width: 720px) {
  .hom-nay { grid-template-columns: 1fr; text-align: center; padding: 24px 18px; }
  .hom-nay-duong { margin: 0 auto; }
}

.hom-nay-duong {
  text-align: center;
  min-width: 140px;
}

.hn-thu {
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--son-do);
  font-weight: 600;
  margin-bottom: 4px;
}

.hn-ngay-lon {
  font-family: var(--font-display);
  font-size: 76px;
  line-height: 0.95;
  font-weight: 700;
  color: var(--muc-den);
}

.hn-thang-nam {
  font-size: 15px;
  color: var(--ngu-gia);
  margin-top: 2px;
}

.hn-am-box {
  display: inline-block;
  margin-top: 10px;
  padding: 5px 14px;
  background: var(--son-do);
  color: var(--nga);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.hn-divider {
  width: 1px;
  background: var(--nga-dam);
  align-self: stretch;
  display: none;
}

.hn-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px 22px;
}

.hn-info-item .label {
  font-size: 11px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--vang-kim);
  font-weight: 700;
  margin-bottom: 3px;
}

.hn-info-item .value {
  font-size: 16px;
  color: var(--muc-den);
  font-weight: 600;
}
.hn-info-item .value.tot { color: var(--xanh-luc); }
.hn-info-item .value.xau { color: var(--do-canh-bao); }

/* ---------- Section heading ---------- */
.section {
  margin-top: 40px;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 0;
  color: var(--son-do-dam);
}

.section-head .duoi {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--vang-kim) 0, var(--vang-kim) 4px, transparent 4px, transparent 9px);
  opacity: 0.6;
}

/* ---------- Calendar nav ---------- */
.cal-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.cal-nav .thang-nam {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--muc-den);
  font-weight: 700;
}

.cal-nav .thang-nam .am {
  font-size: 14px;
  font-weight: 400;
  color: var(--son-do);
  display: block;
  font-family: var(--font-body);
  margin-top: 2px;
}

.nav-btns { display: flex; gap: 8px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--nga-dam);
  background: var(--giay-cu);
  color: var(--muc-den);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-body);
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--nga-dam); border-color: var(--vang-kim); }
.btn.chinh {
  background: var(--son-do);
  color: var(--nga);
  border-color: var(--son-do);
}
.btn.chinh:hover { background: var(--son-do-dam); }

/* ---------- Month grid ---------- */
.thang-luoi {
  background: var(--giay-cu);
  border: 1px solid var(--nga-dam);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 30px -18px rgba(33,23,18,0.25);
}

.thu-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  background: var(--nga-dam);
}

.thu-header span {
  text-align: center;
  padding: 10px 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--ngu-gia);
  text-transform: uppercase;
}
.thu-header span.cn { color: var(--son-do); }

.ngay-luoi {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.o-ngay {
  min-height: 86px;
  border-right: 1px solid var(--nga-dam);
  border-bottom: 1px solid var(--nga-dam);
  padding: 8px 8px 6px;
  position: relative;
  cursor: pointer;
  transition: background 0.12s;
  display: block;
  text-decoration: none;
  color: inherit;
}
.ngay-luoi .o-ngay:nth-child(7n) { border-right: none; }
.o-ngay:hover { background: rgba(201, 154, 62, 0.08); }
.o-ngay.rong { background: var(--nga); cursor: default; }
.o-ngay.rong:hover { background: var(--nga); }

.o-ngay .duong-so {
  font-size: 18px;
  font-weight: 700;
  color: var(--muc-den);
  line-height: 1;
}
.o-ngay.chu-nhat .duong-so { color: var(--son-do); }
.o-ngay.hom-nay {
  background: rgba(168, 49, 42, 0.07);
}
.o-ngay.hom-nay .duong-so {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--son-do);
  color: var(--nga);
  border-radius: 50%;
  font-size: 15px;
}

.o-ngay.dang-xem {
  outline: 2px solid var(--vang-kim);
  outline-offset: -2px;
  background: rgba(201, 154, 62, 0.12);
  border-radius: 4px;
}

.o-ngay .am-so {
  font-size: 12px;
  color: var(--ngu-gia);
  margin-top: 4px;
}
.o-ngay .am-so.mung1 {
  color: var(--son-do);
  font-weight: 700;
}
.o-ngay .am-so.mung1::before { content: "● "; font-size: 8px; vertical-align: middle; }

.o-ngay .am-nhuan-tag {
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 9px;
  background: var(--vang-kim);
  color: var(--muc-den);
  padding: 1px 5px;
  border-radius: 4px;
  font-weight: 700;
}

@media (max-width: 640px) {
  .o-ngay { min-height: 64px; padding: 6px 5px 4px; }
  .o-ngay .duong-so { font-size: 15px; }
  .o-ngay .am-so { font-size: 10px; }
}

/* ---------- Detail grid (giờ hoàng đạo, hướng, tuổi xung) ---------- */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.card {
  background: var(--giay-cu);
  border: 1px solid var(--nga-dam);
  border-radius: 12px;
  padding: 20px 22px;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  margin: 0 0 14px;
  color: var(--son-do-dam);
  display: flex;
  align-items: center;
  gap: 8px;
}

.gio-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 14px;
}

.gio-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
  background: var(--nga);
}

.gio-item.tot {
  background: rgba(63, 110, 82, 0.1);
  color: var(--xanh-luc);
  font-weight: 600;
}
.gio-item.xau { color: var(--ngu-gia); opacity: 0.65; }

.gio-item .nhan {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.kv-row {
  display: flex;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px dashed var(--nga-dam);
  font-size: 14px;
}
.kv-row:last-child { border-bottom: none; }
.kv-row .k { color: var(--ngu-gia); }
.kv-row .v { font-weight: 600; text-align: right; }

/* ---------- Tra cứu / Jump form ---------- */
.tra-cuu-box {
  background: var(--nga);
  border: 1px solid var(--nga-dam);
  border-radius: 12px;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tra-cuu-box label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ngu-gia);
}

.tra-cuu-box select, .tra-cuu-box input {
  padding: 8px 10px;
  border: 1px solid var(--nga-dam);
  border-radius: 7px;
  background: var(--giay-cu);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--muc-den);
}

/* ---------- Footer ---------- */
.site-footer {
  text-align: center;
  padding: 30px 20px;
  color: var(--ngu-gia);
  font-size: 13px;
  border-top: 1px solid var(--nga-dam);
  margin-top: 50px;
}

/* ---------- Modal (chi tiết ngày) ---------- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(33, 23, 18, 0.55);
  z-index: 50;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.show { display: flex; }

.modal-box {
  background: var(--giay-cu);
  border-radius: 16px;
  max-width: 480px;
  width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  padding: 26px 26px 20px;
  position: relative;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.4);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 18px;
  font-size: 22px;
  cursor: pointer;
  color: var(--ngu-gia);
  background: none;
  border: none;
  line-height: 1;
}

.eyebrow {
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--vang-kim);
  font-weight: 700;
  margin-bottom: 6px;
}

/* ---------- Breadcrumb (trang detail) ---------- */
.breadcrumb {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  padding: 18px 0 0;
  font-size: 14px;
  font-weight: 600;
}
.breadcrumb a {
  color: var(--son-do);
  text-decoration: none;
}
.breadcrumb a:hover { text-decoration: underline; }

/* ---------- Cảnh báo ---------- */
.canh-bao {
  margin-top: 14px;
  padding: 12px 16px;
  background: rgba(140, 47, 34, 0.1);
  border: 1px solid var(--do-canh-bao);
  border-radius: 8px;
  color: var(--do-canh-bao);
  font-size: 14px;
  font-weight: 600;
}