/*!
 * Ovulo — Ovulation & Fertile Window Calculator
 * Copyright (c) 2026 Dot2Shape. All rights reserved.
 * https://toolzen.app/ovulo/
 */

/* ---------- Fonts (self-hosted, root /fonts/) ---------- */
@font-face{font-family:"Lora";font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/lora-500.woff2) format("woff2")}
@font-face{font-family:"Lora";font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/lora-600.woff2) format("woff2")}
@font-face{font-family:"Lora";font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/lora-700.woff2) format("woff2")}
@font-face{font-family:"Figtree";font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/figtree-400.woff2) format("woff2")}
@font-face{font-family:"Figtree";font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/figtree-500.woff2) format("woff2")}
@font-face{font-family:"Figtree";font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/figtree-600.woff2) format("woff2")}
@font-face{font-family:"Figtree";font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/figtree-700.woff2) format("woff2")}

/* ---------- Theme: "Soft Bloom" — warm blush light / plum dark ---------- */
:root{
  --bg:#fdf7f9;
  --bg2:#fbeff4;
  --card:#ffffff;
  --text:#33202b;
  --muted:#7a6270;
  --line:#f0dbe5;
  --acc:#db2777;
  --acc2:#f472b6;
  --acc-soft:#fce7f1;
  --acc-soft2:#fbd5e8;
  --ok:#0d9488;
  --warn:#b45309;
  --warn-bg:#fef3e2;
  --r:18px;
  --shadow:0 10px 30px rgba(219,39,119,.07),0 2px 8px rgba(51,32,43,.05);
  --sans:"Figtree",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Lora",Georgia,serif;
}
html.dark{
  --bg:#181017;
  --bg2:#20141d;
  --card:#231822;
  --text:#f6e9f0;
  --muted:#b499a8;
  --line:#3a2735;
  --acc:#f472b6;
  --acc2:#f9a8d4;
  --acc-soft:#3a1f30;
  --acc-soft2:#4a2038;
  --warn-bg:#3a2a14;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease,color .25s ease;
}
::selection{background:var(--acc-soft2);color:var(--text)}

.skip{position:absolute;left:-9999px;top:0;background:var(--acc);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:99;font-weight:600}
.skip:focus{left:0}

/* ---------- Nav ---------- */
header{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{max-width:1060px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:12px}
.nav .logo{border-radius:10px}
.brand{font-family:var(--serif);font-weight:700;font-size:1.22rem;letter-spacing:-.01em;display:flex;flex-direction:column;line-height:1.15}
.brand a{color:var(--text);text-decoration:none}
.brand small{font-family:var(--sans);font-weight:500;font-size:.7rem;letter-spacing:.02em;color:var(--muted)}
.brand small a{color:var(--muted)}
.spacer{flex:1}
#themeToggle{background:none;border:1px solid var(--line);border-radius:99px;width:38px;height:38px;display:grid;place-items:center;cursor:pointer;color:var(--text);transition:border-color .2s}
#themeToggle:hover{border-color:var(--acc2)}
#themeToggle .moon{display:none}
html.dark #themeToggle .moon{display:block}
html.dark #themeToggle .sun{display:none}

/* ---------- Hero ---------- */
.hero{
  max-width:820px;margin:0 auto;padding:58px 20px 26px;text-align:center;position:relative;
}
.hero::before{
  content:"";position:absolute;inset:-40px 0 0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(420px 220px at 28% 10%,color-mix(in srgb,var(--acc2) 16%,transparent),transparent 70%),
    radial-gradient(380px 200px at 74% 4%,color-mix(in srgb,var(--acc) 10%,transparent),transparent 70%);
}
.hero h1{font-family:var(--serif);font-weight:700;font-size:clamp(1.9rem,4.6vw,2.9rem);letter-spacing:-.02em;line-height:1.16;margin-bottom:14px}
.hero h1 .hl{color:var(--acc);font-style:italic}
.hero p{font-size:1.06rem;color:var(--muted);max-width:600px;margin:0 auto 20px}
.badges{display:flex;gap:9px;justify-content:center;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;color:var(--acc);background:var(--acc-soft);border:1px solid color-mix(in srgb,var(--acc) 22%,transparent);padding:6px 12px;border-radius:99px}

/* ---------- Tool ---------- */
.tool{max-width:1060px;margin:16px auto 0;padding:0 20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:26px}

.form-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:18px;align-items:end}
.field label{display:block;font-size:.83rem;font-weight:600;color:var(--muted);margin-bottom:7px}
.field input[type="date"]{
  width:100%;padding:12px 14px;font:inherit;font-weight:600;color:var(--text);
  background:var(--bg);border:1.5px solid var(--line);border-radius:12px;
  transition:border-color .2s;min-height:48px;
}
.field input[type="date"]:focus{outline:none;border-color:var(--acc)}
.stepper{display:flex;align-items:center;border:1.5px solid var(--line);border-radius:12px;background:var(--bg);overflow:hidden;min-height:48px}
.stepper button{
  width:44px;align-self:stretch;border:none;background:none;color:var(--acc);
  font-size:1.25rem;font-weight:700;cursor:pointer;transition:background .15s;
}
.stepper button:hover{background:var(--acc-soft)}
.stepper input{
  flex:1;width:100%;border:none;background:none;text-align:center;font:inherit;
  font-weight:700;font-size:1.02rem;color:var(--text);-moz-appearance:textfield;appearance:textfield;
}
.stepper input::-webkit-outer-spin-button,.stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.stepper input:focus{outline:none}
.stepper .unit{font-size:.78rem;color:var(--muted);padding-right:12px;font-weight:500}

.advanced{margin-top:14px}
.advanced summary{cursor:pointer;font-size:.85rem;font-weight:600;color:var(--acc);list-style:none;display:inline-flex;align-items:center;gap:6px}
.advanced summary::-webkit-details-marker{display:none}
.advanced summary::after{content:"▾";font-size:.7rem;transition:transform .2s}
.advanced[open] summary::after{transform:rotate(180deg)}
.advanced .adv-body{margin-top:12px;max-width:320px}
.advanced .hint{font-size:.78rem;color:var(--muted);margin-top:6px}

.actions{margin-top:20px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:700;
  border:none;border-radius:13px;padding:13px 26px;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s;
}
.btn.primary{
  background:linear-gradient(135deg,var(--acc2),var(--acc));color:#fff;
  box-shadow:0 6px 18px color-mix(in srgb,var(--acc) 35%,transparent);
}
.btn.primary:hover{transform:translateY(-1px);box-shadow:0 9px 24px color-mix(in srgb,var(--acc) 45%,transparent)}
.btn.primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn.ghost{background:none;border:1.5px solid var(--line);color:var(--text);padding:11px 18px}
.btn.ghost:hover{border-color:var(--acc2)}
.btn.small{padding:8px 14px;font-size:.85rem;border-radius:10px}
.err{color:#dc2626;font-size:.85rem;font-weight:600;margin-top:10px}
html.dark .err{color:#f87171}

/* ---------- Results ---------- */
.results{margin-top:26px}
.phase-banner{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:var(--acc-soft);border:1px solid color-mix(in srgb,var(--acc) 20%,transparent);
  border-radius:14px;padding:12px 16px;font-size:.92rem;margin-bottom:18px;
}
.phase-banner b{font-weight:700}
.phase-banner .dotp{width:9px;height:9px;border-radius:99px;background:var(--acc);flex:none}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:14px}
.stat{
  background:var(--bg);border:1px solid var(--line);border-radius:15px;padding:16px 18px;
  position:relative;overflow:hidden;
}
.stat.hero-stat{background:linear-gradient(135deg,color-mix(in srgb,var(--acc2) 14%,var(--card)),color-mix(in srgb,var(--acc) 9%,var(--card)));border-color:color-mix(in srgb,var(--acc) 28%,transparent)}
.stat .lbl{font-size:.76rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:6px}
.stat .lbl svg{color:var(--acc);flex:none}
.stat .val{display:block;font-family:var(--serif);font-weight:700;font-size:1.34rem;letter-spacing:-.01em;margin-top:6px;line-height:1.25}
.stat .sub{display:block;font-size:.8rem;color:var(--muted);margin-top:3px}

/* ---------- Calendar ---------- */
.cal-wrap{margin-top:24px}
.cal-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.cal-head h2{font-family:var(--serif);font-size:1.15rem;font-weight:700}
.legend{display:flex;gap:12px;flex-wrap:wrap;margin-left:auto}
.lg{display:inline-flex;align-items:center;gap:6px;font-size:.76rem;color:var(--muted);font-weight:500}
.lg i{width:12px;height:12px;border-radius:5px;flex:none}
.lg .i-p{background:var(--acc);opacity:.85}
.lg .i-f{background:var(--acc-soft2);border:1px solid color-mix(in srgb,var(--acc) 30%,transparent)}
.lg .i-o{background:none;border:2px solid var(--acc);border-radius:99px}
.lg .i-t{background:none;border:1.5px dashed var(--muted);border-radius:5px}

.months{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.month{background:var(--bg);border:1px solid var(--line);border-radius:15px;padding:14px}
.month h3{font-family:var(--serif);font-size:.98rem;font-weight:600;text-align:center;margin-bottom:10px}
.dow,.days{display:grid;grid-template-columns:repeat(7,1fr);gap:3px}
.dow span{font-size:.64rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);text-align:center;padding:2px 0}
.day{
  aspect-ratio:1;display:grid;place-items:center;font-size:.8rem;font-weight:500;
  border-radius:9px;position:relative;color:var(--text);
}
.day.dim{color:color-mix(in srgb,var(--muted) 45%,transparent)}
.day.p{background:var(--acc);color:#fff;font-weight:700}
.day.p.pp{background:color-mix(in srgb,var(--acc) 55%,var(--bg));color:#fff}
.day.f{background:var(--acc-soft2);font-weight:600}
.day.o{box-shadow:inset 0 0 0 2px var(--acc);font-weight:800;color:var(--acc)}
.day.f.o{background:var(--acc-soft2)}
.day.today{outline:1.5px dashed var(--muted);outline-offset:1px}
.cal-note{font-size:.78rem;color:var(--muted);margin-top:10px}

/* ---------- Forecast table ---------- */
.forecast{margin-top:24px;overflow-x:auto}
.forecast h2{font-family:var(--serif);font-size:1.15rem;font-weight:700;margin-bottom:12px}
.forecast table{width:100%;border-collapse:collapse;font-size:.88rem;min-width:520px}
.forecast th{text-align:left;font-size:.73rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:8px 12px;border-bottom:1.5px solid var(--line)}
.forecast td{padding:11px 12px;border-bottom:1px solid var(--line)}
.forecast td:first-child{font-weight:700}
.forecast .fw{color:var(--acc);font-weight:600}

/* ---------- Disclaimer ---------- */
.disclaimer{
  margin-top:22px;background:var(--warn-bg);border:1px solid color-mix(in srgb,var(--warn) 30%,transparent);
  border-radius:13px;padding:13px 16px;font-size:.83rem;color:var(--text);display:flex;gap:10px;
}
.disclaimer svg{flex:none;color:var(--warn);margin-top:2px}

/* ---------- Ad slots (empty until AdSense goes live) ---------- */
.ad-slot{max-width:1060px;margin:26px auto 0;padding:0 20px}
.ad-slot:empty{display:none}

/* ---------- Content ---------- */
.content{max-width:820px;margin:30px auto 0;padding:0 20px}
.content section{margin:38px 0}
.content h2{font-family:var(--serif);font-weight:700;font-size:1.5rem;letter-spacing:-.01em;margin-bottom:14px}
.content h3{font-family:var(--serif);font-weight:600;font-size:1.12rem;margin:20px 0 8px}
.content p{margin-bottom:12px;color:color-mix(in srgb,var(--text) 88%,var(--muted))}
.content ul{padding-left:22px;margin-bottom:12px}
.content li{margin-bottom:8px}
.content a{color:var(--acc);font-weight:600}
.content b,.content strong{font-weight:700}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-top:16px}
.step{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.step .num{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:99px;background:var(--acc-soft);color:var(--acc);font-weight:800;font-size:.9rem;margin-bottom:10px}
.step b{display:block;margin-bottom:6px;font-family:var(--serif);font-size:1rem}
.step p{font-size:.87rem;margin:0}
.phases{display:grid;grid-template-columns:repeat(auto-fit,minmax(185px,1fr));gap:12px;margin-top:14px}
.phase{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:15px;border-top:3px solid var(--acc2)}
.phase b{font-family:var(--serif);display:block;margin-bottom:4px}
.phase span{font-size:.78rem;color:var(--muted);font-weight:600}
.phase p{font-size:.85rem;margin:6px 0 0}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.tag{font-size:.76rem;font-weight:600;color:var(--muted);background:var(--card);border:1px solid var(--line);padding:5px 11px;border-radius:99px}

/* FAQ */
#faq details{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:0 18px;margin-bottom:10px}
#faq summary{cursor:pointer;font-weight:700;padding:15px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
#faq summary::-webkit-details-marker{display:none}
#faq summary::after{content:"+";font-size:1.2rem;color:var(--acc);font-weight:600;flex:none}
#faq details[open] summary::after{content:"–"}
#faq details p{padding-bottom:15px;font-size:.92rem}

/* ---------- Sticky mobile CTA ---------- */
.stickybar{
  position:fixed;left:0;right:0;bottom:0;z-index:50;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);display:none;
}
.stickybar .btn{width:100%;justify-content:center}
@media (max-width:640px){.stickybar.show{display:block}}

/* ---------- Install banner ---------- */
.install{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:60;max-width:430px;margin:0 auto;
  background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:12px;padding:13px 15px;
}
.install img{border-radius:10px}
.install .txt{flex:1;line-height:1.35}
.install .txt b{display:block;font-size:.92rem}
.install .txt span{font-size:.78rem;color:var(--muted)}
.install .x{background:none;border:none;font-size:1.3rem;color:var(--muted);cursor:pointer;padding:4px}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);margin-top:52px;background:var(--bg2)}
.foot{
  max-width:1060px;margin:0 auto;padding:22px 20px;display:flex;align-items:center;gap:14px;
  flex-wrap:wrap;font-size:.84rem;color:var(--muted);
}
.foot a{color:var(--muted);text-decoration:none;font-weight:500}
.foot a:hover{color:var(--acc)}

/* ---------- Responsive ---------- */
@media (max-width:760px){
  .form-grid{grid-template-columns:1fr}
  .card{padding:20px}
  .hero{padding-top:40px}
  .legend{margin-left:0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}