/* CalForge - Main Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg: #ffffff;
  --bg2: #f7f8fa;
  --bg3: #eef0f4;
  --border: #e2e5ec;
  --accent: #4f8ef7;
  --accent2: #7c5cfc;
  --accent3: #00b894;
  --text: #1a1d23;
  --text2: #5a6070;
  --text3: #9aa0b0;
  --card: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 16px rgba(0,0,0,0.07);
  --font-head: 'Poppins', sans-serif;
  --font-body: 'Poppins', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent2); }

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
}
.nav-logo span { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
  font-size: 0.875rem;
  font-weight: 500;
}
.nav-links a { color: var(--text2); transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-burger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.nav-burger span { display: block; width: 24px; height: 2px; background: var(--text2); border-radius: 2px; transition: all 0.3s; }

/* HERO */
.hero {
  text-align: center;
  padding: 80px 24px 60px;
  background: linear-gradient(160deg, #f0f5ff 0%, #ffffff 60%);
  border-bottom: 1px solid var(--border);
}
.hero-badge {
  display: inline-block;
  background: rgba(79,142,247,0.10);
  color: var(--accent);
  border: 1px solid rgba(79,142,247,0.25);
  border-radius: 100px;
  padding: 4px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
  color: var(--text);
}
.hero h1 span { color: var(--accent); }
.hero p {
  color: var(--text2);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto 32px;
}
.hero-stats { display: flex; gap: 40px; justify-content: center; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat .num { font-family: var(--font-head); font-size: 1.8rem; font-weight: 800; color: var(--accent); }
.hero-stat .lbl { font-size: 0.8rem; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }

/* SEARCH */
.search-wrap { max-width: 560px; margin: 40px auto 0; position: relative; }
.search-wrap input {
  width: 100%;
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  padding: 14px 24px 14px 48px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
  box-shadow: var(--shadow);
}
.search-wrap input:focus { border-color: var(--accent); }
.search-wrap input::placeholder { color: var(--text3); }
.search-icon { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); color: var(--text3); }

/* SECTIONS */
.section { padding: 60px 24px; max-width: 1200px; margin: 0 auto; }
.section-title { font-family: var(--font-head); font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.section-sub { color: var(--text2); font-size: 0.9rem; margin-bottom: 32px; }

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

/* CATEGORIES */
.cat-section { margin-bottom: 56px; }
.cat-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.cat-icon { width: 36px; height: 36px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.cat-title { font-family: var(--font-head); font-size: 1.1rem; font-weight: 700; color: var(--text); }
.cat-count { color: var(--text3); font-size: 0.85rem; }

.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }

.tool-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s;
  text-decoration: none;
}
.tool-btn:hover {
  border-color: var(--accent);
  background: rgba(79,142,247,0.05);
  color: var(--text);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79,142,247,0.12);
}
.tool-btn .emoji { font-size: 1.1rem; flex-shrink: 0; }

/* FEATURED CARDS */
.feat-card {
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.feat-card h3 { font-family: var(--font-head); font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; color: var(--text); }
.feat-card .desc { color: var(--text2); font-size: 0.85rem; margin-bottom: 20px; }

/* FORM ELEMENTS */
.calc-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.calc-row.full { grid-template-columns: 1fr; }
.field-group { display: flex; flex-direction: column; gap: 6px; }
.field-label { font-size: 0.75rem; color: var(--text2); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.field-hint { font-size: 0.73rem; color: var(--text3); margin-top: 2px; }

input[type=number], input[type=text], input[type=date], input[type=time], select, textarea {
  background: var(--bg2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none;
  -webkit-appearance: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,142,247,0.10);
  background: #fff;
}
input::placeholder { color: var(--text3); }
select {
  cursor: pointer;
  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 fill='%235a6070' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.calc-btn {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 16px;
  transition: all 0.2s;
  letter-spacing: 0.2px;
}
.calc-btn:hover { background: #3a7de8; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(79,142,247,0.3); }

.result-box {
  background: linear-gradient(135deg, #f0f5ff 0%, #f7f0ff 100%);
  border: 1.5px solid rgba(79,142,247,0.2);
  border-radius: var(--radius-sm);
  padding: 18px 16px;
  margin-top: 16px;
  display: none;
}
.result-box.show { display: block; }
.result-box .result-label { font-size: 0.72rem; color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 4px; }
.result-box .result-value { font-family: var(--font-head); font-size: 1.7rem; font-weight: 800; color: var(--text); }
.result-box .result-sub { font-size: 0.82rem; color: var(--text2); margin-top: 4px; }

/* CALC PAGE */
.calc-page { max-width: 720px; margin: 40px auto; padding: 0 24px 80px; }
.calc-page-header { margin-bottom: 32px; }
.breadcrumb { font-size: 0.82rem; color: var(--text3); margin-bottom: 12px; }
.breadcrumb a { color: var(--text3); }
.breadcrumb a:hover { color: var(--accent); }
.calc-page h1 { font-family: var(--font-head); font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 800; letter-spacing: -0.5px; display: flex; align-items: center; gap: 12px; color: var(--text); }
.calc-page .tagline { color: var(--text2); margin-top: 8px; font-size: 1rem; }

.calc-card { background: #fff; border: 1.5px solid var(--border); border-radius: 16px; padding: 28px; margin-bottom: 24px; box-shadow: var(--shadow); }
.calc-card h2 { font-family: var(--font-head); font-size: 1rem; font-weight: 700; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border); color: var(--text); }

.info-card { background: var(--bg2); border: 1.5px solid var(--border); border-radius: 16px; padding: 28px; margin-bottom: 24px; }
.info-card h2 { font-family: var(--font-head); font-size: 1rem; font-weight: 700; margin-bottom: 16px; color: var(--accent2); }
.info-card p { color: var(--text2); font-size: 0.9rem; line-height: 1.7; margin-bottom: 12px; }
.info-card ul { color: var(--text2); font-size: 0.9rem; line-height: 1.9; padding-left: 20px; }

/* RANGE SLIDER */
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 4px; background: var(--border); border-radius: 4px; outline: none; border: none; padding: 0; box-shadow: none; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--accent); cursor: pointer; }

/* FOOTER */
footer { border-top: 1px solid var(--border); padding: 48px 24px 32px; margin-top: 40px; background: var(--bg2); }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--text2); font-size: 0.875rem; margin-top: 12px; max-width: 260px; line-height: 1.7; }
.footer-col h4 { font-family: var(--font-head); font-weight: 700; font-size: 0.82rem; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text2); }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col ul a { color: var(--text3); font-size: 0.875rem; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { color: var(--text3); font-size: 0.82rem; }

/* STATIC PAGES */
.static-page { max-width: 800px; margin: 60px auto; padding: 0 24px 80px; }
.static-page h1 { font-family: var(--font-head); font-size: 2.2rem; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 8px; color: var(--text); }
.static-page .date { color: var(--text3); font-size: 0.85rem; margin-bottom: 40px; }
.static-page h2 { font-family: var(--font-head); font-size: 1.15rem; font-weight: 700; margin: 32px 0 12px; color: var(--accent); }
.static-page p, .static-page li { color: var(--text2); line-height: 1.8; margin-bottom: 12px; font-size: 0.95rem; }
.static-page ul { padding-left: 20px; }

/* BLOG */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; margin-top: 32px; }
.blog-card { background: #fff; border: 1.5px solid var(--border); border-radius: 16px; padding: 28px; box-shadow: var(--shadow); transition: all 0.2s; text-decoration: none; display: block; }
.blog-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79,142,247,0.12); }
.blog-card .blog-tag { display: inline-block; background: rgba(79,142,247,0.10); color: var(--accent); border-radius: 100px; padding: 3px 12px; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 14px; }
.blog-card h2 { font-family: var(--font-head); font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 10px; line-height: 1.4; }
.blog-card p { color: var(--text2); font-size: 0.875rem; line-height: 1.6; margin-bottom: 16px; }
.blog-card .blog-meta { font-size: 0.78rem; color: var(--text3); }
.blog-card .read-more { color: var(--accent); font-size: 0.85rem; font-weight: 600; }

.blog-page { max-width: 780px; margin: 40px auto; padding: 0 24px 80px; }
.blog-page h1 { font-family: var(--font-head); font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -0.5px; color: var(--text); margin-bottom: 16px; line-height: 1.2; }
.blog-page .blog-meta { color: var(--text3); font-size: 0.85rem; margin-bottom: 40px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.blog-page h2 { font-family: var(--font-head); font-size: 1.35rem; font-weight: 700; color: var(--text); margin: 40px 0 16px; }
.blog-page h3 { font-family: var(--font-head); font-size: 1.1rem; font-weight: 700; color: var(--text); margin: 28px 0 12px; }
.blog-page p { color: var(--text2); font-size: 0.975rem; line-height: 1.85; margin-bottom: 20px; }
.blog-page ul, .blog-page ol { color: var(--text2); font-size: 0.975rem; line-height: 1.85; padding-left: 24px; margin-bottom: 20px; }
.blog-page li { margin-bottom: 8px; }
.blog-page strong { color: var(--text); font-weight: 600; }
.blog-page .callout { background: linear-gradient(135deg, #f0f5ff, #f7f0ff); border: 1.5px solid rgba(79,142,247,0.2); border-radius: 12px; padding: 20px 24px; margin: 28px 0; }
.blog-page .callout p { margin-bottom: 0; color: var(--text); }
.blog-page .related-tools { background: var(--bg2); border: 1.5px solid var(--border); border-radius: 16px; padding: 24px; margin: 40px 0; }
.blog-page .related-tools h3 { margin-top: 0; }

.blog-figure { background: #fff; border: 1.5px solid var(--border); border-radius: 16px; padding: 20px; margin: 28px 0; box-shadow: var(--shadow); }
.blog-figure svg { display: block; width: 100%; height: auto; }
.blog-figure figcaption { font-size: 0.8rem; color: var(--text3); margin-top: 12px; text-align: center; }

/* TABS */
.tab-btn { background: var(--bg2); border: 1.5px solid var(--border); border-radius: var(--radius-sm); padding: 8px 16px; color: var(--text2); font-family: var(--font-body); font-size: 0.85rem; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.tab-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* DECISION WHEEL */
#wheel-canvas { display: block; margin: 0 auto 16px; border-radius: 50%; cursor: pointer; box-shadow: 0 4px 24px rgba(0,0,0,0.10); }
.spin-btn { display: block; margin: 0 auto; background: var(--accent2); }
.spin-result { text-align: center; font-family: var(--font-head); font-size: 1.4rem; font-weight: 800; color: var(--accent2); min-height: 36px; margin-top: 8px; }

/* RESULT ROWS */
.result-rows { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.result-row { display: flex; justify-content: space-between; align-items: center; background: var(--bg2); border-radius: var(--radius-sm); padding: 8px 12px; border: 1px solid var(--border); }
.result-row .rk { color: var(--text2); font-size: 0.85rem; }
.result-row .rv { font-family: var(--font-head); font-weight: 700; font-size: 0.95rem; color: var(--accent); }

/* TIMER */
.timer-display { text-align: center; font-family: var(--font-head); font-size: 3.5rem; font-weight: 800; letter-spacing: -1px; color: var(--accent); padding: 20px 0; }
.timer-controls { display: flex; gap: 8px; justify-content: center; }
.timer-controls button { background: var(--bg2); border: 1.5px solid var(--border); border-radius: var(--radius-sm); padding: 10px 20px; color: var(--text); font-family: var(--font-head); font-size: 0.9rem; font-weight: 700; cursor: pointer; transition: all 0.2s; }
.timer-controls button:hover { border-color: var(--accent); background: rgba(79,142,247,0.05); }

/* MOBILE */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 16px 24px; gap: 16px; box-shadow: var(--shadow); }
  .nav-burger { display: flex; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .calc-row { grid-template-columns: 1fr; }
  .hero { padding: 50px 20px 40px; }
  .tools-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .blog-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .featured-grid { grid-template-columns: 1fr; }
}