/* shared.css — Sunday Power Insights common styles */

@font-face {
  font-family: 'Basel Grotesk';
  src: url('fonts/Basel-Grotesk-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Basel Grotesk';
  src: url('fonts/Basel-Grotesk-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --spw-deep: #090044;
  --spw-deep7: #1a1250;
  --spw-deep14: #2b245d;
  --spw-white: #fffff6;
  --spw-white7: #f2f2e8;
  --spw-white14: #e5e5db;
  --spw-yellow-01: #faffb4;
  --spw-yellow-02: #f2ff80;
  --spw-yellow-03: #e2ff06;

  --bg: var(--spw-deep);
  --bg-illustration: var(--spw-deep7);
  --bg-card-hover: var(--spw-deep14);
  --text: var(--spw-white);
  --text-muted: color-mix(in srgb, var(--text), transparent 45%);
  --hr: color-mix(in srgb, var(--text), transparent 70%);
  --btn-cta-bg: var(--spw-yellow-03);
  --btn-cta-text: var(--spw-deep);
  --btn-sec-bg: var(--spw-deep14);
  --btn-sec-text: var(--spw-yellow-02);
  --tag-bg: var(--spw-deep14);
  --tag-text: var(--spw-yellow-02);

  --font: 'Basel Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --h2-size: 3.3rem; --h2-lead: 3.7rem; --h2-track: -0.02em;
  --large-size: 1.5rem; --large-lead: 1.9rem;
  --body-size: 1rem; --body-lead: 1.4rem; --body-track: 0.01em;
  --small-size: 0.7rem; --small-lead: 1.1rem;

  --pad: 1.5rem; --gap: 1.5rem;
  --space-xs: 0.6rem; --space-s: 1.5rem; --space-m: 2.5rem;
  --r: 0.3rem; --r-hover: 1rem;
}

[data-theme="light"] {
  --bg: var(--spw-white);
  --bg-illustration: var(--spw-white7);
  --bg-card-hover: var(--spw-white14);
  --text: var(--spw-deep);
  --text-muted: color-mix(in srgb, var(--text), transparent 45%);
  --hr: color-mix(in srgb, var(--text), transparent 70%);
  --btn-cta-bg: var(--spw-yellow-03);
  --btn-cta-text: var(--spw-deep);
  --btn-sec-bg: var(--spw-white14);
  --btn-sec-text: var(--spw-deep);
  --tag-bg: var(--spw-deep14);
  --tag-text: var(--spw-yellow-02);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 18px; line-height: 24px; font-weight: 400;
  background-color: var(--bg); color: var(--text);
  padding: 4rem var(--pad) 1rem;
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ===== BADGE ===== */
.badge-beta {
  display: inline-block;
  font-size: 0.55rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2em 0.5em;
  border-radius: 0.25rem;
  background: var(--btn-cta-bg);
  color: var(--btn-cta-text);
  vertical-align: super;
  margin-left: 0.4em;
}

/* ===== HEADER ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0.6rem var(--pad);
  display: flex; justify-content: space-between; align-items: center;
  background-color: color-mix(in srgb, var(--bg), transparent 20%);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.logo { display: flex; align-items: center; gap: 0.5rem; text-decoration: none; color: var(--text); }
.logo-svg { height: 1.05rem; width: auto; display: block; fill: currentColor; flex-shrink: 0; }
.logo-divider { color: var(--text-muted); font-weight: 400; font-size: var(--body-size); letter-spacing: var(--body-track); }
.theme-toggle {
  width: 2.4rem; height: 2.4rem; border-radius: var(--r); border: none;
  background: var(--bg-illustration); color: var(--text); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: border-radius 0.2s ease-in-out, background-color 0.3s ease;
}
.theme-toggle:hover { border-radius: 50%; background: var(--bg-card-hover); }
.theme-toggle svg { width: 1.1rem; height: 1.1rem; }
.icon-sun { display: none; } .icon-moon { display: block; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

.header-actions { display: flex; align-items: center; gap: 0.4rem; }
.lang-toggle {
  width: 2.4rem; height: 2.4rem; border-radius: var(--r); border: none;
  background: var(--bg-illustration); color: var(--text); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font); font-size: var(--small-size); font-weight: 500;
  letter-spacing: var(--body-track);
  transition: border-radius 0.2s ease-in-out, background-color 0.3s ease;
}
.lang-toggle:hover { border-radius: 50%; background: var(--bg-card-hover); }

/* ===== BREADCRUMB ===== */
.breadcrumb {
  padding-top: 3rem; margin-bottom: var(--space-s);
  display: flex; align-items: center; gap: 0.4rem;
  font-size: var(--small-size); line-height: var(--small-lead); letter-spacing: var(--body-track);
}
.breadcrumb a { color: var(--text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb .current { color: var(--text); font-weight: 500; }

/* ===== PAGE TITLE ===== */
.page-title { margin-bottom: var(--space-m); max-width: 48rem; }
.page-title h1 {
  font-size: var(--h2-size); line-height: var(--h2-lead);
  letter-spacing: var(--h2-track); font-weight: 400; margin-bottom: var(--space-xs);
}
.page-title p {
  font-size: var(--body-size); line-height: var(--body-lead);
  letter-spacing: var(--body-track); color: var(--text-muted);
}

/* ===== CONTROLS ===== */
.controls {
  display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: center;
  margin-bottom: var(--gap);
}
.control-group { display: flex; align-items: center; gap: 0.3rem; }
.control-label {
  font-size: var(--small-size); line-height: var(--small-lead);
  letter-spacing: var(--body-track); font-weight: 500;
  color: var(--text-muted); margin-right: 0.3rem; white-space: nowrap;
}
.select-wrap { position: relative; display: inline-block; }
.select-wrap select {
  appearance: none; font-family: var(--font);
  font-size: var(--small-size); line-height: var(--small-lead); letter-spacing: var(--body-track);
  background: var(--bg-illustration); color: var(--text);
  border: 1px solid transparent; border-radius: var(--r);
  padding: 0.45rem 2rem 0.45rem 0.8rem; cursor: pointer;
  transition: border-radius 0.2s ease-in-out;
}
.select-wrap select:hover { border-radius: var(--r-hover); }
.select-wrap select:focus { outline: none; border-color: var(--hr); }
.select-wrap::after {
  content: ''; position: absolute; right: 0.7rem; top: 50%; transform: translateY(-50%);
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 5px solid var(--text-muted); pointer-events: none;
}
.toggle-group { display: flex; border-radius: var(--r); overflow: hidden; }
.toggle-btn {
  font-family: var(--font); font-size: var(--small-size); line-height: var(--small-lead);
  letter-spacing: var(--body-track); font-weight: 500;
  background: var(--bg-illustration); color: var(--text-muted);
  border: none; padding: 0.45rem 1rem; cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.toggle-btn:not(:last-child) { border-right: 1px solid color-mix(in srgb, var(--bg), transparent 50%); }
.toggle-btn:hover { color: var(--text); }
.toggle-btn.active { background: var(--btn-cta-bg); color: var(--btn-cta-text); }
.toggle-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.period-btn {
  font-family: var(--font); font-size: var(--small-size); line-height: var(--small-lead);
  letter-spacing: var(--body-track);
  background: var(--bg-illustration); color: var(--text-muted);
  border: none; border-radius: var(--r); padding: 0.45rem 0.8rem; cursor: pointer;
  transition: border-radius 0.2s ease-in-out, background-color 0.2s ease, color 0.2s ease;
}
.period-btn:hover { border-radius: var(--r-hover); color: var(--text); }
.period-btn.active { background: var(--tag-bg); color: var(--tag-text); border-radius: var(--r-hover); }

/* ===== STATUS ===== */
.status-banner {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: var(--small-size); line-height: var(--small-lead);
  letter-spacing: var(--body-track); color: var(--text-muted); margin-bottom: var(--gap);
}
.status-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.status-dot.live { background: #22c55e; }
.status-dot.mock { background: var(--spw-yellow-03); }
.status-dot.loading { background: var(--spw-yellow-03); animation: pulse 1.2s ease-in-out infinite; }
.status-dot.error { background: #ef4444; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ===== CHART ===== */
.chart-container {
  background: var(--bg-illustration); border-radius: var(--r);
  padding: var(--gap); margin-bottom: var(--gap);
  transition: border-radius 0.2s ease-in-out;
}
.chart-wrap { position: relative; height: 480px; }
.loading-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.8rem; z-index: 10;
  background: color-mix(in srgb, var(--bg-illustration), transparent 10%);
  border-radius: var(--r);
}
.loading-overlay.hidden { display: none; }
.loading-bar-track { width: 12rem; height: 3px; background: var(--hr); border-radius: 2px; overflow: hidden; }
.loading-bar { height: 100%; background: var(--spw-yellow-03); border-radius: 2px; width: 0%; transition: width 0.3s ease; }
.loading-text { font-size: var(--small-size); line-height: var(--small-lead); color: var(--text-muted); }

/* ===== SUMMARY ===== */
.summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); margin-bottom: var(--space-m); }
.summary-card {
  padding: var(--gap); background: var(--bg-illustration); border-radius: var(--r);
  transition: border-radius 0.2s ease-in-out;
}
.summary-card:hover { border-radius: var(--r-hover); }
.summary-label, .summary-source {
  display: flex; align-items: center; gap: 0.4rem;
  font-size: var(--small-size); line-height: var(--small-lead);
  letter-spacing: var(--body-track); font-weight: 500;
  color: var(--text-muted); margin-bottom: 0.3rem;
}
.summary-dot { width: 8px; height: 8px; border-radius: 50%; }
.summary-value { font-size: var(--large-size); line-height: var(--large-lead); font-weight: 400; }
.summary-unit { font-size: var(--small-size); color: var(--text-muted); font-weight: 400; }
.summary-detail, .summary-ratio {
  font-size: var(--small-size); line-height: var(--small-lead);
  color: var(--text-muted); margin-top: 0.15rem;
}

/* ===== EXPLAINER ===== */
.explainer {
  max-width: 48rem;
  margin-bottom: var(--space-m);
}
.explainer summary {
  font-size: var(--small-size); line-height: var(--small-lead);
  letter-spacing: var(--body-track); font-weight: 500;
  color: var(--text-muted); cursor: pointer;
  list-style: none; display: flex; align-items: center; gap: 0.4rem;
}
.explainer summary::-webkit-details-marker { display: none; }
.explainer summary::before {
  content: ''; display: inline-block; width: 0.4rem; height: 0.4rem;
  border-right: 1.5px solid var(--text-muted); border-bottom: 1.5px solid var(--text-muted);
  transform: rotate(-45deg); transition: transform 0.2s ease;
}
.explainer[open] summary::before { transform: rotate(45deg); }
.explainer summary:hover { color: var(--text); }
.explainer summary:hover::before { border-color: var(--text); }
.explainer .explainer-body { padding-top: var(--space-xs); }
.explainer p, .explainer li {
  font-size: var(--small-size); line-height: var(--small-lead);
  letter-spacing: var(--body-track); color: var(--text-muted);
}
.explainer p { margin-bottom: 0.6rem; }
.explainer ul { padding-left: 1.2rem; margin-bottom: 0.6rem; }
.explainer li { margin-bottom: 0.25rem; }
.explainer a { color: #8B5CF6; text-decoration: none; }
.explainer a:hover { text-decoration: underline; }

/* ===== FOOTER ===== */
.hr { width: 100%; height: 1px; background: var(--hr); }
.footer {
  padding: var(--space-m) 0 var(--space-s);
  display: flex; justify-content: space-between; align-items: center;
}
.footer-left { display: flex; align-items: center; gap: 0.5rem; }
.footer-svg { height: 0.7rem; width: auto; fill: currentColor; opacity: 0.5; }
.footer-text { font-size: var(--small-size); line-height: var(--small-lead); letter-spacing: var(--body-track); color: var(--text-muted); }
.footer-links a { font-size: var(--small-size); color: var(--text-muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }

/* ===== ANIMATIONS ===== */
@keyframes fadeUp { from { opacity: 0; transform: translateY(1rem); } to { opacity: 1; transform: translateY(0); } }
.animate-in { opacity: 0; animation: fadeUp 0.5s ease forwards; }
.delay-1 { animation-delay: 0.05s; } .delay-2 { animation-delay: 0.1s; }
.delay-3 { animation-delay: 0.15s; } .delay-4 { animation-delay: 0.2s; }
.delay-5 { animation-delay: 0.3s; } .delay-6 { animation-delay: 0.35s; }
.delay-7 { animation-delay: 0.4s; }

/* ===== RESPONSIVE ===== */
@media screen and (max-width: 991px) {
  :root { --h2-size: 3rem; --h2-lead: 3.2rem; --large-size: 1.3rem; --large-lead: 1.7rem; --pad: 1rem; --gap: 1rem; }
  .summary { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 767px) {
  :root { --h2-size: 2rem; --h2-lead: 2.4rem; --large-size: 1.2rem; --large-lead: 1.5rem; --pad: 0.5rem; --gap: 0.8rem; }
  .controls { gap: 0.5rem; }
  .summary { grid-template-columns: 1fr 1fr; }
  .footer { flex-direction: column; align-items: flex-start; gap: var(--space-s); }
}
@media screen and (max-width: 479px) {
  .summary { grid-template-columns: 1fr; }
}