/* ════════════════════════════════════════════════════════════
   tools/period/style.css — Menstrual Cycle Calculator
   UI: CYCLE WHEEL — Big circular SVG with 4 colored phases
   Theme: Soft coral + multi-phase colors
   ════════════════════════════════════════════════════════════ */

body.tool-period {
  --page-bg:    #FFF7F4;       /* very pale coral */
  --card-bg:    #FFFFFF;
  --card-soft:  #FFE9E0;
  --ink:        #1F1816;
  --text:       #3A2D29;
  --muted:      #8A6F68;
  --hairline:   #F2DCD2;

  --phase-period:  #E94B5C;   /* red — menstrual */
  --phase-follic:  #FFAB91;   /* light orange — follicular */
  --phase-ovul:    #66BB6A;   /* green — ovulation/fertile */
  --phase-luteal:  #FFCC80;   /* yellow — luteal */

  --r-card:     24px;
  --r-input:    14px;
  --shadow-soft: 0 1px 2px rgba(180,80,90,.04), 0 12px 32px -20px rgba(180,80,90,.12);

  background: var(--page-bg);
  color: var(--text);
}
body.tool-period main.container,
body.tool-period .site-header-inner { max-width: 1180px; padding-inline: clamp(16px, 3vw, 28px); }

body.tool-period .back-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--muted); font-size: 13.5px;
  text-decoration: none; margin: 20px 0 16px; font-weight: 500;
}
body.tool-period .back-link:hover { color: var(--ink); }

.pr-hero { padding: clamp(16px, 3vw, 28px) 4px clamp(16px, 3vw, 24px); max-width: 760px; }
.pr-eyebrow { font-size: 11px; letter-spacing: .2em; font-weight: 600; color: var(--phase-period); text-transform: uppercase; margin: 0 0 14px; }
.pr-h1 { font-size: clamp(28px, 4.5vw, 44px); line-height: 1.12; font-weight: 700; letter-spacing: -.02em; color: var(--ink); margin: 0 0 14px; }
.pr-h1-accent { color: var(--phase-period); font-weight: 700; }
.pr-sub { font-size: 16px; color: var(--muted); margin: 0; line-height: 1.55; max-width: 600px; }

/* INPUTS */
.pr-input-card {
  background: var(--card-bg); border-radius: var(--r-card);
  padding: clamp(20px, 3vw, 28px); margin-bottom: 16px;
  box-shadow: var(--shadow-soft);
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px;
}
@media (max-width: 720px) { .pr-input-card { grid-template-columns: 1fr; } }
.pr-field { display: flex; flex-direction: column; gap: 8px; }
.pr-field-label { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; font-weight: 700; color: var(--muted); }
.pr-input-wrap {
  display: flex; align-items: center;
  background: var(--card-soft); border: 1.5px solid var(--hairline);
  border-radius: var(--r-input); padding: 0 18px;
  transition: border-color .15s;
}
.pr-input-wrap:focus-within { border-color: var(--phase-period); background: var(--card-bg); }
.pr-input-wrap input {
  flex: 1; background: transparent; border: 0; padding: 14px 0;
  font-size: 17px; color: var(--ink); font-weight: 600; outline: none; min-width: 0;
  text-align: center;
}

/* CYCLE WHEEL */
.pr-wheel-card {
  background: var(--card-bg); border-radius: var(--r-card);
  padding: clamp(28px, 4vw, 48px);
  margin-bottom: 20px; box-shadow: var(--shadow-soft);
  display: grid; grid-template-columns: auto 1fr; gap: 40px;
  align-items: center;
}
@media (max-width: 820px) { .pr-wheel-card { grid-template-columns: 1fr; justify-items: center; text-align: center; } }

.pr-wheel-wrap {
  position: relative; width: 320px; height: 320px;
  flex-shrink: 0;
}
.pr-wheel { width: 320px; height: 320px; transform: rotate(-90deg); }
.pr-wheel-seg { fill: none; stroke-width: 36; }
.pr-wheel-marker {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
}
.pr-wheel-day-num {
  font-size: 72px; font-weight: 800;
  color: var(--ink); line-height: .9;
  letter-spacing: -.04em; font-variant-numeric: tabular-nums;
}
.pr-wheel-day-lbl {
  font-size: 12px; color: var(--muted);
  letter-spacing: .15em; text-transform: uppercase;
  font-weight: 600; margin-top: 4px;
}
.pr-wheel-phase {
  margin-top: 12px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12.5px; font-weight: 700;
  letter-spacing: .04em;
}

.pr-wheel-body { min-width: 0; }
.pr-wheel-eyebrow {
  font-size: 11px; letter-spacing: .15em;
  text-transform: uppercase; font-weight: 700;
  color: var(--phase-period); margin: 0 0 8px;
}
.pr-wheel-title {
  font-size: clamp(22px, 2.8vw, 28px);
  font-weight: 700; color: var(--ink);
  margin: 0 0 6px; letter-spacing: -.01em;
}
.pr-wheel-desc {
  font-size: 16px; color: var(--text);
  line-height: 1.55; margin: 0 0 18px;
}
.pr-wheel-mini {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;
}
.pr-mini {
  padding: 12px 14px;
  background: var(--card-soft);
  border-radius: 12px;
}
.pr-mini-lbl {
  font-size: 11px; color: var(--muted);
  letter-spacing: .1em; text-transform: uppercase;
  font-weight: 600; margin: 0 0 4px;
}
.pr-mini-val {
  font-size: 16px; font-weight: 700; color: var(--ink); margin: 0;
}

/* 4 PHASE CARDS */
.pr-phases {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
}
@media (max-width: 920px) { .pr-phases { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .pr-phases { grid-template-columns: 1fr; } }
.pr-phase {
  padding: 22px 24px;
  border-radius: 18px;
  background: var(--card-bg);
  border: 1.5px solid var(--hairline);
  position: relative;
  transition: transform .15s, border-color .15s;
}
.pr-phase.is-active { transform: translateY(-2px); box-shadow: 0 4px 16px -8px rgba(0,0,0,.1); }
.pr-phase-1.is-active { border-color: var(--phase-period); }
.pr-phase-2.is-active { border-color: var(--phase-follic); }
.pr-phase-3.is-active { border-color: var(--phase-ovul); }
.pr-phase-4.is-active { border-color: var(--phase-luteal); }
.pr-phase-dot {
  width: 14px; height: 14px; border-radius: 50%;
  margin-bottom: 10px;
}
.pr-phase-1 .pr-phase-dot { background: var(--phase-period); }
.pr-phase-2 .pr-phase-dot { background: var(--phase-follic); }
.pr-phase-3 .pr-phase-dot { background: var(--phase-ovul); }
.pr-phase-4 .pr-phase-dot { background: var(--phase-luteal); }
.pr-phase-name {
  font-size: 16px; font-weight: 700; color: var(--ink);
  margin: 0 0 2px; letter-spacing: -.005em;
}
.pr-phase-days {
  font-size: 12px; font-weight: 600; color: var(--muted);
  margin: 0 0 10px;
  letter-spacing: .04em;
}
.pr-phase-body { font-size: 14px; line-height: 1.5; color: var(--text); margin: 0; }

/* NEXT PERIOD DATES */
.pr-dates-card {
  background: var(--card-bg); border-radius: var(--r-card);
  padding: clamp(20px, 3vw, 32px);
  margin-bottom: 20px; box-shadow: var(--shadow-soft);
}
.pr-dates-head {
  display: flex; justify-content: space-between;
  margin-bottom: 18px; flex-wrap: wrap; gap: 12px;
}
.pr-dates-title { font-size: 17px; font-weight: 700; color: var(--ink); margin: 0; }
.pr-dates-grid { display: flex; flex-direction: column; gap: 0; }
.pr-date-row {
  display: grid; grid-template-columns: auto 1fr auto;
  gap: 14px; align-items: center;
  padding: 14px 4px;
  border-top: 1px solid var(--hairline);
}
.pr-date-row:first-child { border-top: 0; }
.pr-date-num {
  font-size: 13px; font-weight: 700;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--card-soft); color: var(--muted);
  display: grid; place-items: center;
}
.pr-date-body { font-size: 15px; color: var(--ink); }
.pr-date-body strong { font-weight: 700; }
.pr-date-tag {
  font-size: 11px; font-weight: 700;
  letter-spacing: .04em;
  padding: 4px 10px; border-radius: 999px;
}
.pr-tag-period { background: #FCE0E5; color: #C13A65; }
.pr-tag-ovul { background: #DFF2E0; color: #2E7A36; }

/* panel */
.pr-panel { background: var(--card-bg); border-radius: var(--r-card); padding: clamp(20px, 3vw, 36px); margin-bottom: 20px; box-shadow: var(--shadow-soft); }
.pr-panel-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 18px; padding: 0 2px; gap: 14px; flex-wrap: wrap; }
.pr-panel-title { font-size: clamp(17px, 2vw, 22px); font-weight: 700; color: var(--ink); margin: 0; letter-spacing: -.01em; }
.pr-panel-sub { font-size: 13px; color: var(--muted); margin: 0; }

.pr-acc { display: flex; flex-direction: column; gap: 8px; }
.pr-acc details { background: var(--card-soft); border: 1px solid var(--hairline); border-radius: 14px; overflow: hidden; }
.pr-acc details[open] { background: var(--card-bg); border-color: var(--phase-period); }
.pr-acc summary { padding: 14px 18px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 16px; font-weight: 600; color: var(--ink); }
.pr-acc summary::-webkit-details-marker { display: none; }
.pr-acc summary::after { content: '+'; color: var(--phase-period); font-size: 18px; }
.pr-acc details[open] summary::after { content: '−'; }
.pr-acc-body { padding: 4px 18px 18px; font-size: 16px; line-height: 1.65; color: var(--text); }
.pr-acc-body p { margin: 0 0 10px; }
.pr-acc-body strong { color: var(--ink); }
.pr-acc-body ul { margin: 6px 0 10px 22px; padding: 0; }

.pr-faq-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 28px; }
@media (max-width: 820px) { .pr-faq-grid { grid-template-columns: 1fr; } }
.pr-related-title { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; font-weight: 600; color: var(--muted); margin: 0 0 14px; }
.pr-related-list { list-style: none; padding: 0; margin: 0; }
.pr-related-list li { padding: 12px 0; border-top: 1px solid var(--hairline); font-size: 13px; line-height: 1.5; color: var(--muted); }
.pr-related-list li:first-child { border-top: 0; padding-top: 4px; }
.pr-related-list a { color: var(--ink); font-weight: 600; text-decoration: none; }
.pr-related-list a:hover { color: var(--phase-period); }