/* ============================================================
   components.css — nút, ô nhập, thẻ, khối nội dung dùng lại
   ============================================================ */

/* ---------- Nút ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: .94rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform var(--t-fast), box-shadow var(--t-fast),
              background var(--t-fast), border-color var(--t-fast);
}
.btn:active { transform: scale(.975); }
.btn[disabled] { opacity: .45; pointer-events: none; }

.btn-moon {
  background: linear-gradient(135deg, var(--moon), var(--blossom));
  color: #061024;
  font-weight: 600;
  box-shadow: 0 8px 26px rgba(95, 180, 236, .32);
}
.btn-moon:hover { transform: translateY(-2px); box-shadow: 0 14px 38px rgba(95, 180, 236, .45); }

.btn-ghost {
  border-color: var(--line);
  background: var(--panel);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--moon); transform: translateY(-2px); }

.btn-quiet { color: var(--ink-mute); padding: 10px 16px; }
.btn-quiet:hover { color: var(--moon); }

.btn-sm { padding: 9px 18px; font-size: .86rem; }
.btn-block { width: 100%; }

/* ---------- Ô nhập ---------- */
.field { margin-bottom: 14px; }
.field > label {
  display: block;
  font-size: .84rem;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.input, .textarea, select.input {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--dusk) 40%, transparent);
  color: var(--ink);
  transition: border-color var(--t-fast), background var(--t-fast);
}
.input::placeholder, .textarea::placeholder { color: var(--ink-mute); }
.input:focus, .textarea:focus, select.input:focus {
  outline: none;
  border-color: var(--moon);
  background: color-mix(in srgb, var(--dusk) 60%, transparent);
}
.textarea { min-height: 110px; resize: vertical; line-height: 1.6; }

.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .row-2 { grid-template-columns: 1fr; } }

/* ---------- Khối / panel ---------- */
.panel {
  padding: 28px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.panel.lit { border-color: var(--line); box-shadow: var(--glow); }

/* ---------- Đầu mục ---------- */
.section { padding-block: clamp(48px, 8vw, 88px); }
.section-head { margin-bottom: 34px; }
.section-head p { color: var(--ink-soft); margin-top: 10px; }
.section-head .label-sm { display: block; margin-bottom: 8px; }

/* ---------- Lưới thẻ công cụ ---------- */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(232px, 1fr));
  gap: 14px;
}

.tool {
  position: relative;
  display: block;
  padding: 20px 20px 22px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  background: var(--panel);
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform var(--t-mid), border-color var(--t-fast), box-shadow var(--t-mid);
}
.tool:hover {
  border-color: var(--line);
  box-shadow: 0 20px 44px rgba(0, 0, 0, .35);
}
.tool .glyph {
  font-size: 1.6rem;
  margin-bottom: 12px;
  display: block;
  transform: translateZ(26px);
}
.tool h3 { font-size: 1.05rem; margin-bottom: 5px; transform: translateZ(18px); }
.tool p { font-size: .86rem; color: var(--ink-mute); margin: 0; }

.tag {
  position: absolute; top: 15px; right: 15px;
  font-size: .68rem;
  padding: 3px 9px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--blossom) 22%, transparent);
  color: var(--blossom);
  border: 1px solid color-mix(in srgb, var(--blossom) 36%, transparent);
}
.tag.free { background: color-mix(in srgb, var(--sage) 20%, transparent); color: var(--sage); border-color: color-mix(in srgb, var(--sage) 34%, transparent); }

.group-title {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: .86rem; font-weight: 600;
  color: var(--moon);
  margin: 34px 0 14px;
}
.group-title:first-of-type { margin-top: 0; }

/* ---------- Khối kết quả luận giải ---------- */
.result {
  margin-top: 26px;
  padding: 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(14px);
  animation: riseIn .55s var(--ease);
}
@keyframes riseIn { from { opacity: 0; transform: translateY(18px); } }

.result h3 { color: var(--moon); margin-bottom: 12px; }
.result h4 {
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: .92rem; font-weight: 600;
  color: var(--blossom);
  margin: 22px 0 8px;
}
.result p { color: var(--ink-soft); }
.result blockquote {
  margin: 20px 0;
  padding: 16px 22px;
  border-left: 2px solid var(--moon);
  font-family: 'Lora', serif;
  font-style: italic;
  color: var(--ink);
  background: color-mix(in srgb, var(--dusk) 34%, transparent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.chip {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--moon) 9%, transparent);
  font-size: .8rem;
  color: var(--moon);
}
.chip.alt { color: var(--mist); border-color: color-mix(in srgb, var(--mist) 34%, transparent); background: color-mix(in srgb, var(--mist) 10%, transparent); }

/* số lớn (chỉ số thần số học, % hợp đôi) */
.big-num {
  font-family: 'Lora', serif;
  font-size: clamp(2.6rem, 8vw, 4.4rem);
  line-height: 1;
  color: var(--moon);
  display: block;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 12px;
  margin: 20px 0;
}
.stat {
  padding: 16px 14px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--dusk) 30%, transparent);
  text-align: center;
}
.stat .n { font-family: 'Lora', serif; font-size: 1.9rem; color: var(--moon); line-height: 1.1; }
.stat .k { font-size: .76rem; color: var(--ink-mute); margin-top: 4px; }

/* thanh đo */
.meter { height: 7px; border-radius: 999px; background: var(--line-soft); overflow: hidden; margin: 8px 0 16px; }
.meter i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--mist), var(--moon), var(--blossom)); transition: width 1.1s var(--ease); }

/* ---------- Câu hỏi thường gặp ---------- */
.faq details {
  border-bottom: 1px solid var(--line-soft);
  padding: 4px 0;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 34px 16px 0;
  position: relative;
  font-weight: 500;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  position: absolute; right: 6px; top: 50%;
  transform: translateY(-50%);
  color: var(--moon); font-size: 1.25rem;
  transition: transform var(--t-fast);
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--ink-soft); font-size: .93rem; padding-bottom: 14px; margin: 0; }

/* ---------- Trạng thái rỗng / đang tải ---------- */
.empty {
  text-align: center;
  padding: 54px 24px;
  color: var(--ink-mute);
}
.empty .pup { width: 76px; height: 76px; margin: 0 auto 16px; opacity: .8; }
.empty p { margin-inline: auto; }

.thinking { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 30px; color: var(--ink-mute); font-size: .9rem; }
.thinking i {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--moon);
  animation: bob 1.1s ease-in-out infinite;
}
.thinking i:nth-child(2) { animation-delay: .16s; }
.thinking i:nth-child(3) { animation-delay: .32s; }
@keyframes bob { 0%, 100% { transform: translateY(0); opacity: .4; } 50% { transform: translateY(-7px); opacity: 1; } }

/* ---------- Các bước (chỉ dùng khi thật sự là chuỗi tuần tự) ---------- */
.steps { display: flex; gap: 8px; justify-content: center; margin-bottom: 28px; flex-wrap: wrap; }
.step {
  display: flex; align-items: center; gap: 7px;
  font-size: .82rem; color: var(--ink-mute);
}
.step b {
  width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--line-soft);
  font-size: .74rem; font-weight: 500;
}
.step.on { color: var(--moon); }
.step.on b { border-color: var(--moon); background: color-mix(in srgb, var(--moon) 16%, transparent); }
.step.done b { background: var(--moon); color: var(--void); border-color: var(--moon); }