/* ===== Nidarshana Vedh Cosmos: design system =====
   Deep night navy, starlight off-white, the parent's warm gold, one cool accent.
   Every colour is a custom property, defined for both themes. Contrast for the
   text pairs is checked by scripts/nv_cosmos/check_contrast.py (WCAG AA, 4.5:1).
   The names --parchment-*, --ink* and --gold-ink at the bottom of each theme
   block exist only so the email step (nv-gate.js, copied unchanged from the
   Vedic site) picks up this site's colours. */

:root, :root[data-theme="dark"] {
  --bg: #0A1124;
  --bg-deep: #070C1A;
  --surface: #111A33;
  --surface-2: #19244A;
  --border: #2B3963;
  --text: #EDF0F8;
  --text-soft: #BAC3DC;
  --text-faint: #9AA6C8;
  --gold: #E3B75B;          /* gold for text and lines on dark */
  --gold-fill: #E3B75B;     /* button fill, same in both themes */
  --on-gold: #0A1124;
  --accent: #93B8F5;        /* cool accent: links, focus, chart lines */
  --accent-soft: rgba(147, 184, 245, .14);
  --warm: #F0A99E;          /* tension aspects, errors */
  --shadow: 0 10px 40px rgba(0, 0, 0, .35);
  --star: rgba(237, 240, 248, .55);
  --parchment-deep: var(--surface); --parchment-mid: var(--surface-2); --parchment-edge: var(--border);
  --ink: var(--text); --ink-faded: var(--text-soft); --ink-ghost: var(--text-faint); --gold-ink: var(--gold);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #F5F6FB;
  --bg-deep: #ECEFF8;
  --surface: #FFFFFF;
  --surface-2: #ECEFF8;
  --border: #C9D0E4;
  --text: #10172E;
  --text-soft: #39435F;
  --text-faint: #566181;
  --gold: #7A5600;
  --gold-fill: #E3B75B;
  --on-gold: #0A1124;
  --accent: #2A56A3;
  --accent-soft: rgba(42, 86, 163, .09);
  --warm: #A23A2C;
  --shadow: 0 10px 30px rgba(16, 23, 46, .10);
  --star: rgba(16, 23, 46, .0);
  --parchment-deep: var(--surface); --parchment-mid: var(--surface-2); --parchment-edge: var(--border);
  --ink: var(--text); --ink-faded: var(--text-soft); --ink-ghost: var(--text-faint); --gold-ink: var(--gold);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; font-size: 1rem; line-height: 1.65;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: 'Crimson Pro', Georgia, 'Times New Roman', serif; font-weight: 500; line-height: 1.2; margin: 0 0 .6em; color: var(--text); }
h1 { font-size: clamp(2.1rem, 6vw, 3.3rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 4vw, 2.1rem); margin-top: 2.2em; }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1.1em; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
img, svg { max-width: 100%; }
.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 16px; }
.container-narrow { width: 100%; max-width: 780px; margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--gold-fill); color: var(--on-gold); padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }
.eyebrow { font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--gold); font-weight: 600; margin: 0 0 .9rem; }

/* ----- navbar ----- */
.navbar { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.navbar .container { display: flex; align-items: center; gap: 14px; min-height: 64px; }
.nav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); flex: none; }
.nav-brand svg { flex: none; }
.nav-brand-text { font-family: 'Crimson Pro', Georgia, serif; font-size: 1.3rem; line-height: 1; white-space: nowrap; }
.nav-brand-text span { color: var(--gold); }
.nav-brand-text small { display: block; font-family: 'Inter', sans-serif; font-size: .62rem; letter-spacing: .22em; text-transform: uppercase; color: var(--text-faint); margin-top: 4px; }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0 0 0 auto; padding: 0; }
.nav-links a { display: block; padding: 10px 12px; color: var(--text-soft); text-decoration: none; font-size: .95rem; border-radius: 8px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); background: var(--accent-soft); }
.nav-links .nav-parent a { font-size: .82rem; border: 1px solid var(--border); margin-left: 6px; color: var(--gold); }
.theme-toggle, .nav-toggle { background: none; border: 1px solid var(--border); color: var(--text); width: 44px; height: 44px; border-radius: 10px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; flex: none; }
.theme-toggle:hover, .nav-toggle:hover { background: var(--accent-soft); }
.theme-icon-sun { display: none; } .theme-icon-moon { display: block; }
:root[data-theme="dark"] .theme-icon-sun { display: block; } :root[data-theme="dark"] .theme-icon-moon { display: none; }
.nav-toggle { display: none; flex-direction: column; gap: 4px; }
.nav-toggle span { display: block; width: 18px; height: 2px; background: currentColor; }
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .navbar .container { flex-wrap: wrap; }
  .theme-toggle { margin-left: auto; }
  .nav-links { display: none; order: 5; width: 100%; flex-direction: column; align-items: stretch; margin: 0; padding: 6px 0 14px; }
  .nav-links.active { display: flex; }
  .nav-links a { padding: 13px 10px; font-size: 1rem; }
  .nav-links .nav-parent a { margin: 6px 0 0; text-align: center; }
}

/* ----- buttons ----- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 24px; border-radius: 999px; font: inherit; font-weight: 600; font-size: 1rem; text-decoration: none; cursor: pointer; border: 1px solid var(--border); background: transparent; color: var(--text); }
.btn:hover { background: var(--accent-soft); }
.btn-primary { background: var(--gold-fill); color: var(--on-gold); border-color: var(--gold-fill); }
.btn-primary:hover { background: #EFC878; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.4rem; }

/* ----- hero ----- */
.hero { position: relative; padding: 72px 0 64px; overflow: hidden; border-bottom: 1px solid var(--border);
  background: radial-gradient(1200px 500px at 80% -10%, rgba(147, 184, 245, .16), transparent 60%), radial-gradient(800px 400px at 0% 110%, rgba(227, 183, 91, .10), transparent 60%), var(--bg); }
:root[data-theme="light"] .hero { background: radial-gradient(1000px 420px at 85% -10%, rgba(42, 86, 163, .10), transparent 60%), radial-gradient(700px 360px at 0% 110%, rgba(227, 183, 91, .22), transparent 60%), var(--bg); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .7;
  background-image: radial-gradient(1.2px 1.2px at 12% 22%, var(--star), transparent), radial-gradient(1px 1px at 28% 68%, var(--star), transparent), radial-gradient(1.4px 1.4px at 44% 14%, var(--star), transparent), radial-gradient(1px 1px at 61% 48%, var(--star), transparent), radial-gradient(1.3px 1.3px at 77% 26%, var(--star), transparent), radial-gradient(1px 1px at 90% 72%, var(--star), transparent), radial-gradient(1px 1px at 6% 84%, var(--star), transparent), radial-gradient(1.2px 1.2px at 52% 88%, var(--star), transparent); }
.hero .container { position: relative; display: grid; gap: 40px; grid-template-columns: 1fr; align-items: center; }
.hero h1 { max-width: 15ch; }
.hero .lead { font-size: 1.15rem; color: var(--text-soft); max-width: 52ch; }
.hero-orbit { justify-self: center; width: min(320px, 70vw); aspect-ratio: 1; }
.hero-orbit svg { width: 100%; height: auto; display: block; }
@media (min-width: 900px) { .hero .container { grid-template-columns: 1.3fr .7fr; } .hero { padding: 96px 0 88px; } }

/* ----- sections and cards ----- */
.section { padding: 56px 0; }
.section-alt { background: var(--bg-deep); border-block: 1px solid var(--border); }
.section-head { max-width: 62ch; margin-bottom: 28px; }
.section-head h2 { margin-top: 0; }
.cards { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .cards.cols-3 { grid-template-columns: repeat(3, 1fr); } .cards.cols-4 { grid-template-columns: repeat(4, 1fr); } }
.card { display: flex; flex-direction: column; gap: 6px; padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; text-decoration: none; color: var(--text); }
a.card:hover { border-color: var(--gold); box-shadow: var(--shadow); transform: translateY(-2px); }
.card { transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease; }
.card h3 { margin: 0; font-size: 1.4rem; }
.card p { margin: 0; color: var(--text-soft); font-size: .96rem; }
.card .card-more { margin-top: auto; padding-top: 10px; color: var(--gold); font-weight: 600; font-size: .9rem; }
.card-glyph { font-size: 1.8rem; color: var(--gold); line-height: 1; margin-bottom: 4px; }
@media (prefers-reduced-motion: reduce) { .card { transition: none; } a.card:hover { transform: none; } html { scroll-behavior: auto; } }
.split { display: grid; gap: 28px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 860px) { .split { grid-template-columns: 1fr 1fr; } }
.twosigns { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.twosigns > div { padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); }
.twosigns b { display: block; font-family: 'Crimson Pro', Georgia, serif; font-size: 1.6rem; font-weight: 500; color: var(--gold); }
.twosigns span { font-size: .85rem; color: var(--text-soft); }

/* ----- page header and article ----- */
.page-header { padding: 48px 0 18px; }
.page-header .subtitle, .page-header p { color: var(--text-soft); font-size: 1.1rem; max-width: 60ch; margin: 0; }
.crumbs { font-size: .85rem; color: var(--text-faint); margin-bottom: 14px; }
.crumbs a { color: var(--text-faint); }
.article-content { padding-bottom: 40px; }
.article-content h2 { margin-top: 1.8em; }
.article-content ul, .article-content ol { padding-left: 1.3em; margin: 0 0 1.1em; }
.article-content li { margin-bottom: .4em; }
.note, .table-note { font-size: .9rem; color: var(--text-soft); }
.callout { padding: 16px 18px; background: var(--accent-soft); border-left: 3px solid var(--accent); border-radius: 0 10px 10px 0; margin: 1.4em 0; font-size: .96rem; }
.badge { display: inline-block; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; padding: 3px 10px; border: 1px solid var(--gold); color: var(--gold); border-radius: 999px; font-weight: 600; }
.tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.placeholder-box { padding: 22px; border: 1px dashed var(--border); border-radius: 14px; color: var(--text-soft); background: var(--surface); }

/* ----- tool forms ----- */
.tool-card { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 22px 18px; box-shadow: var(--shadow); }
@media (min-width: 600px) { .tool-card { padding: 30px; } }
.form-row { margin-bottom: 18px; }
.form-row-label, .tool-card label.lbl { display: block; font-size: .88rem; font-weight: 600; color: var(--text-soft); margin-bottom: 7px; }
.form-hint { display: block; font-size: .85rem; color: var(--text-faint); margin-top: 6px; }
.date-select-row, .time-select-row { display: grid; gap: 10px; grid-template-columns: 1fr 1.5fr 1.2fr; }
.time-select-row { grid-template-columns: 1fr 1fr 1fr; }
.pair { display: grid; gap: 10px; grid-template-columns: 1fr; }
@media (min-width: 560px) { .pair { grid-template-columns: 1fr 1fr; } }
.tool-card select, .tool-card input[type=text], .tool-card input[type=number] { width: 100%; min-height: 48px; padding: 10px 12px; font: inherit; font-size: 1rem; color: var(--text); background: var(--bg); border: 1px solid var(--text-faint); border-radius: 10px; appearance: none; }
.tool-card select { background-image: linear-gradient(45deg, transparent 50%, var(--text-soft) 50%), linear-gradient(135deg, var(--text-soft) 50%, transparent 50%); background-position: calc(100% - 18px) 52%, calc(100% - 13px) 52%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px; }
.tool-card select:disabled { opacity: .55; }
.tool-card input::placeholder { color: var(--text-faint); }
.check, .radio { display: flex; align-items: center; gap: 10px; font-size: .95rem; color: var(--text-soft); margin-top: 10px; min-height: 28px; }
.check input, .radio input { width: 20px; height: 20px; flex: none; accent-color: var(--gold-fill); }
.seg { display: inline-flex; flex-wrap: wrap; gap: 8px; }
.seg label { display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; min-height: 44px; border: 1px solid var(--border); border-radius: 999px; cursor: pointer; font-size: .95rem; color: var(--text-soft); }
.seg input { accent-color: var(--gold-fill); width: 18px; height: 18px; }
.seg label:has(input:checked) { border-color: var(--gold); color: var(--text); background: var(--accent-soft); }
.place-group { position: relative; }
.place-suggestions { display: none; position: absolute; left: 0; right: 0; top: 100%; z-index: 20; margin-top: 4px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); max-height: 260px; overflow-y: auto; }
.place-suggestion-item, .place-suggestion-empty { padding: 12px 14px; font-size: .94rem; cursor: pointer; color: var(--text); border-bottom: 1px solid var(--border); }
.place-suggestion-item:last-child { border-bottom: 0; }
.place-suggestion-item:hover { background: var(--accent-soft); }
.place-suggestion-empty { color: var(--text-soft); cursor: default; }
.form-actions { margin-top: 8px; }
.form-actions .btn { width: 100%; }
@media (min-width: 560px) { .form-actions .btn { width: auto; min-width: 200px; } }
.tool-error { margin: 14px 0 0; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--warm); color: var(--warm); font-size: .94rem; }
:root[data-theme="dark"] .tool-error { background: rgba(240, 169, 158, .08); }
.gate-note { text-align: center; margin: 16px 0 0; font-size: .85rem; color: var(--text-faint); }

/* ----- results ----- */
#tool-result { margin-top: 28px; scroll-margin-top: 80px; }
.result-head { font-size: 1.6rem; margin: 0 0 14px; }
.big3 { display: grid; gap: 12px; grid-template-columns: 1fr; margin-bottom: 18px; }
@media (min-width: 640px) { .big3 { grid-template-columns: repeat(3, 1fr); } }
.big3 > div, .answer { padding: 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; }
.big3 .k { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); font-weight: 600; }
.big3 .v { font-family: 'Crimson Pro', Georgia, serif; font-size: 1.9rem; line-height: 1.15; color: var(--text); margin: 4px 0; }
.big3 .v .g { color: var(--gold); margin-right: 6px; }
.big3 .d { font-size: .92rem; color: var(--text-soft); }
.answer { text-align: center; padding: 26px 18px; }
.answer .num { font-family: 'Crimson Pro', Georgia, serif; font-size: 4.5rem; line-height: 1; color: var(--gold); }
.answer .num small { font-size: 1.2rem; color: var(--text-soft); }
.answer .lbl2 { font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; color: var(--text-faint); font-weight: 600; margin-bottom: 6px; }
.answer p { margin: 8px auto 0; max-width: 52ch; color: var(--text-soft); }
.numset { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .numset { grid-template-columns: repeat(3, 1fr); } }
.numset .answer .num { font-size: 3.4rem; }
.work { margin: 18px 0; padding: 16px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; }
.work h3 { font-size: 1.15rem; margin-bottom: 8px; }
.work ol, .work ul { margin: 0; padding-left: 1.2em; }
.work li { margin-bottom: 4px; font-size: .96rem; }
.work code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .92em; color: var(--text); }
.tbl-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; margin: 10px 0 20px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: .94rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--text-soft); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 600; background: var(--surface-2); }
tr:last-child td { border-bottom: 0; }
td.wrap { white-space: normal; }
.g { color: var(--gold); }
.lettertbl td, .lettertbl th { text-align: center; padding: 8px 6px; }
.lettertbl { font-size: .9rem; }
.lt-v { background: var(--accent-soft); font-weight: 700; }
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.chip { display: inline-flex; flex-direction: column; align-items: center; min-width: 34px; padding: 4px 6px; border: 1px solid var(--border); border-radius: 8px; font-size: .95rem; line-height: 1.2; }
.chip b { font-weight: 600; } .chip i { font-style: normal; font-size: .78rem; color: var(--text-soft); }
.chip.is-v { border-color: var(--accent); background: var(--accent-soft); }
.chip-sep { width: 100%; height: 0; }
.result-tools { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; margin: 4px 0 16px; }
.wheel-wrap { display: flex; justify-content: center; margin: 6px 0 18px; }
.wheel { width: 100%; max-width: 520px; height: auto; }
.cw-bg { fill: var(--surface); stroke: var(--border); }
.cw-ring { fill: var(--surface-2); stroke: var(--border); }
.cw-sign { fill: var(--gold); font-size: 15px; text-anchor: middle; dominant-baseline: central; }
.cw-line { stroke: var(--border); stroke-width: 1; }
.cw-cusp { stroke: var(--text-faint); stroke-width: 1; }
.cw-angle { stroke: var(--gold); stroke-width: 2; }
.cw-num { fill: var(--text-faint); font-size: 10px; text-anchor: middle; dominant-baseline: central; }
.cw-pl { fill: var(--text); font-size: 17px; text-anchor: middle; dominant-baseline: central; }
.cw-tick { stroke: var(--text-faint); stroke-width: 1; }
.cw-lab { fill: var(--gold); font-size: 10px; font-weight: 600; text-anchor: middle; dominant-baseline: central; }
.asp-soft { stroke: var(--accent); } .asp-hard { stroke: var(--warm); } .asp-conj { stroke: var(--gold); }
.wheel .asp { stroke-width: 1.2; opacity: .85; fill: none; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: .85rem; color: var(--text-soft); justify-content: center; margin: -6px 0 18px; }
.legend i { display: inline-block; width: 22px; height: 0; border-top: 2px solid; vertical-align: middle; margin-right: 6px; }
.legend .l-soft { color: var(--accent); } .legend .l-hard { color: var(--warm); } .legend .l-conj { color: var(--gold); }
.compare { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .compare { grid-template-columns: 1fr 1fr; } }
.compare > div { padding: 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; }
.compare h3 { font-size: 1.15rem; margin-bottom: 12px; }
.compare .row { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--border); }
.compare .row:last-of-type { border-bottom: 0; }
.compare .row span:first-child { color: var(--text-soft); }
.compare .row b { font-family: 'Crimson Pro', Georgia, serif; font-size: 1.25rem; font-weight: 500; text-align: right; }
.tag-same { color: var(--gold); font-weight: 600; } .tag-diff { color: var(--accent); font-weight: 600; }
.stonelist { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .stonelist { grid-template-columns: 1fr 1fr; } }
.stone { padding: 16px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; }
.stone h4 { margin: 0 0 4px; font-size: 1.25rem; }
.stone p { margin: 0; font-size: .94rem; color: var(--text-soft); }
.sources { font-size: .85rem; color: var(--text-soft); border-top: 1px solid var(--border); padding-top: 14px; margin-top: 24px; }

/* ----- faq ----- */
.faq-item { border-bottom: 1px solid var(--border); padding: 4px 0; }
.faq-item h4 { font-family: 'Inter', sans-serif; font-size: 1rem; font-weight: 600; margin: 12px 0 6px; }

/* ----- footer ----- */
.footer { margin-top: 40px; padding: 48px 0 28px; border-top: 1px solid var(--border); background: var(--bg-deep); }
.footer-grid { display: grid; gap: 28px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer h4 { font-family: 'Inter', sans-serif; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 12px; }
.footer p { font-size: .93rem; color: var(--text-soft); max-width: 40ch; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 6px; }
.footer-links a { color: var(--text-soft); text-decoration: none; font-size: .94rem; display: inline-block; padding: 3px 0; }
.footer-links a:hover { color: var(--text); text-decoration: underline; }
.footer-bottom { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--border); font-size: .84rem; color: var(--text-faint); display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

.contact-form .form-group { margin-bottom: 16px; }
.contact-form label { display: block; font-size: .88rem; font-weight: 600; color: var(--text-soft); margin-bottom: 6px; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; padding: 12px; font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--text-faint); border-radius: 10px; min-height: 48px; }
.contact-form textarea { min-height: 140px; }