:root {
  --bg: #0d0a08;
  --bg-2: #17110c;
  --panel: rgba(27, 21, 16, 0.86);
  --panel-strong: rgba(34, 25, 19, 0.96);
  --line: rgba(220, 184, 116, 0.18);
  --line-strong: rgba(220, 184, 116, 0.34);
  --text: #f5ecd7;
  --muted: #c9b998;
  --gold: #d7b06a;
  --gold-2: #f0d59e;
  --gold-deep: #9c7131;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.34);
  --radius: 26px;
  --container: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background:
    radial-gradient(circle at top, rgba(215, 176, 106, 0.12), transparent 30%),
    linear-gradient(180deg, #120d0a 0%, #0d0a08 32%, #110c09 100%);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.06;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.12) 0 2px, transparent 2px 18px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 16px);
  mix-blend-mode: soft-light;
}

img {
  max-width: 100%;
  display: block;
}

a,
button,
input,
select {
  font: inherit;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.section {
  padding: 88px 0;
}

.section-dark {
  background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0.01));
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold-2);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 700;
}

h1, h2, h3, strong.brand-title {
  font-family: 'Cinzel', serif;
  font-weight: 700;
  line-height: 1.06;
  margin: 0;
  color: #f7e4ba;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 5rem);
  max-width: 11ch;
}

h2 {
  font-size: clamp(2rem, 3vw, 3rem);
}

h3 {
  font-size: 1.28rem;
}

p {
  margin: 0;
}

.section-intro,
.hero-text,
.status-note,
.hero-note,
.info-card p,
.workflow-step p,
.tip-list li,
.side-list li,
.faq-answer p,
.trust-strip-grid p,
.footer-note,
.site-footer p {
  color: var(--muted);
  line-height: 1.75;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(13, 10, 8, 0.74);
  border-bottom: 1px solid rgba(220, 184, 116, 0.1);
}

.topbar-inner,
.topnav,
.hero-stats,
.hero-card-grid,
.card-heading,
.formula-top,
.result-row,
.footer-inner,
.section-heading,
.trust-strip-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.topbar-inner {
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.brand-copy {
  display: grid;
  gap: 4px;
}

.brand-copy strong {
  font-family: 'Cinzel', serif;
  font-size: 1.06rem;
  letter-spacing: 0.04em;
  color: #f7e4ba;
}

.topnav {
  flex-wrap: wrap;
}

.topnav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 0.2s ease, transform 0.2s ease;
}

.topnav a:hover {
  color: var(--gold-2);
  transform: translateY(-1px);
}

.hero {
  padding: 62px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 34px;
  align-items: center;
}

.hero-text {
  max-width: 62ch;
  margin-top: 22px;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-stats {
  flex-wrap: wrap;
  margin-top: 34px;
  justify-content: flex-start;
}

.hero-stats article,
.metric-card,
.guide-band,
.info-card,
.tool-card,
.tools-side,
.panel,
.formula-card,
.tips-panel,
.workflow-step,
.faq-item,
.cta {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01)),
    var(--panel);
  box-shadow: var(--shadow);
}

.hero-stats article {
  min-width: 152px;
  padding: 16px 18px;
  border-radius: 18px;
}

.hero-stats strong {
  display: block;
  font-size: 1.28rem;
  margin-bottom: 5px;
  color: var(--gold-2);
}

.hero-stats span,
.metric-card span,
.guide-range,
.formula-list span,
.result-row span {
  color: var(--muted);
}

.panel {
  border-radius: var(--radius);
  padding: 26px;
}

.hero-card {
  background:
    radial-gradient(circle at top, rgba(215,176,106,0.12), transparent 38%),
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015)),
    var(--panel-strong);
}

.hero-logo {
  width: min(100%, 430px);
  margin: -18px auto 14px;
  filter: drop-shadow(0 18px 26px rgba(0,0,0,0.35));
}

.hero-card-grid {
  margin-bottom: 20px;
}

.metric-card {
  flex: 1 1 0;
  border-radius: 18px;
  padding: 18px;
  min-height: 102px;
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  color: var(--gold-2);
  font-size: 1.15rem;
  line-height: 1.4;
}

.hydration-meter {
  margin-top: 4px;
}

.meter-track {
  width: 100%;
  height: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
}

.meter-fill {
  height: 100%;
  width: 65%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-2));
  box-shadow: 0 0 16px rgba(215, 176, 106, 0.34);
  transition: width 0.25s ease;
}

.meter-scale {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--muted);
}

.hero-note {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(220,184,116,0.12);
}

.trust-strip {
  padding: 20px 0 0;
}

.trust-strip-grid {
  align-items: stretch;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.trust-strip-grid > div {
  padding: 20px 22px;
  border-top: 1px solid var(--line);
}

.section-heading {
  align-items: end;
  margin-bottom: 28px;
}

.section-intro {
  max-width: 58ch;
}

.tools-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(290px, 0.65fr);
  gap: 24px;
}

.tools-main,
.mini-tools,
.guide-cards,
.formula-grid,
.tips-grid,
.tips-subgrid,
.workflow-grid,
.faq-list {
  display: grid;
  gap: 22px;
}

.mini-tools {
  grid-template-columns: repeat(2, 1fr);
}

.tool-card,
.tools-side,
.info-card,
.formula-card,
.tips-panel,
.workflow-step,
.faq-item {
  border-radius: var(--radius);
  padding: 24px;
}

.card-heading {
  align-items: start;
  margin-bottom: 18px;
}

.card-heading.tight {
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.compact-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

input,
select {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(220, 184, 116, 0.16);
  background: rgba(7, 7, 7, 0.18);
  color: var(--text);
  padding: 14px 14px;
  outline: none;
}

input:focus,
select:focus {
  border-color: rgba(240, 213, 158, 0.62);
  box-shadow: 0 0 0 4px rgba(215,176,106,0.09);
}

.form-actions {
  display: flex;
  align-items: end;
}

.result-shell {
  margin-top: 18px;
}

.result-list {
  display: grid;
  gap: 12px;
}

.result-row {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(220,184,116,0.08);
}

.result-row strong,
.formula-list strong,
.side-list strong {
  color: var(--gold-2);
}

.status-note,
.micro-save {
  margin-top: 16px;
}

.micro-save {
  font-size: 0.92rem;
  color: rgba(240, 213, 158, 0.82);
}

.button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.preset-button:hover,
.faq-question:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #120d08;
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  box-shadow: 0 14px 28px rgba(215,176,106,0.18);
}

.button-secondary,
.button-ghost {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border: 1px solid var(--line);
}

.small-button {
  padding: 11px 14px;
  font-size: 0.92rem;
}

.full-button {
  width: 100%;
  margin-top: 14px;
}

.tools-side h3 {
  margin-bottom: 8px;
}

.preset-stack {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.preset-button {
  appearance: none;
  width: 100%;
  border-radius: 18px;
  padding: 15px 18px;
  text-align: left;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015)),
    rgba(255,255,255,0.03);
  border: 1px solid rgba(220,184,116,0.14);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.preset-button:hover {
  border-color: rgba(240,213,158,0.42);
}

.side-divider {
  height: 1px;
  background: var(--line);
  margin: 24px 0;
}

.side-list,
.formula-list,
.tip-list {
  margin: 0;
  padding-left: 18px;
}

.side-list {
  display: grid;
  gap: 12px;
}

.guide-meter {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.guide-band {
  border-radius: 22px;
  padding: 20px;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.guide-band.active {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background:
    radial-gradient(circle at top, rgba(215,176,106,0.12), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015)),
    var(--panel-strong);
}

.guide-range,
.workflow-number {
  display: inline-flex;
  margin-bottom: 10px;
  font-weight: 700;
  color: var(--gold-2);
}

.guide-cards,
.tips-subgrid {
  margin-top: 22px;
  grid-template-columns: repeat(3, 1fr);
}

.info-card h3,
.workflow-step h3,
.tips-panel h3,
.formula-card h3 {
  margin-bottom: 10px;
}

.formula-grid {
  grid-template-columns: repeat(4, 1fr);
}

.formula-card {
  display: flex;
  flex-direction: column;
}

.formula-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 66px;
  height: 40px;
  border-radius: 999px;
  color: #160f0a;
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  font-weight: 800;
}

.formula-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
}

.formula-list li,
.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.tips-grid {
  grid-template-columns: repeat(2, 1fr);
}

.tip-list {
  display: grid;
  gap: 11px;
}

.workflow-grid {
  grid-template-columns: repeat(3, 1fr);
}

.workflow-number {
  font-size: 1.1rem;
}

.cta {
  border-radius: 30px;
  padding: 28px;
}

.faq-list {
  grid-template-columns: 1fr;
}

.faq-item {
  overflow: hidden;
}

.faq-question {
  appearance: none;
  width: 100%;
  padding: 0;
  background: none;
  border: 0;
  text-align: left;
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
  font-size: 1.06rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-item.open .faq-answer {
  max-height: 180px;
  margin-top: 12px;
}

.site-footer {
  padding: 24px 0 42px;
  border-top: 1px solid rgba(220,184,116,0.08);
}

.footer-inner {
  align-items: start;
}

@media (max-width: 1120px) {
  .hero-grid,
  .tools-layout,
  .guide-meter,
  .formula-grid,
  .workflow-grid,
  .trust-strip-grid,
  .guide-cards,
  .tips-grid,
  .tips-subgrid {
    grid-template-columns: 1fr 1fr;
  }

  .tools-layout,
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .tools-side {
    order: -1;
  }

  .formula-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .workflow-grid,
  .guide-cards,
  .tips-subgrid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .section {
    padding: 72px 0;
  }

  .topbar-inner,
  .topnav,
  .section-heading,
  .card-heading,
  .hero-card-grid,
  .cta,
  .footer-inner {
    flex-direction: column;
    align-items: start;
  }

  .form-grid,
  .compact-grid,
  .mini-tools,
  .trust-strip-grid,
  .guide-meter,
  .guide-cards,
  .formula-grid,
  .tips-grid,
  .tips-subgrid,
  .workflow-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 12px;
  }

  .hero-stats article {
    width: 100%;
  }

  .tool-card,
  .tools-side,
  .panel,
  .info-card,
  .formula-card,
  .tips-panel,
  .workflow-step,
  .faq-item {
    padding: 20px;
  }

  h1 {
    max-width: 100%;
  }
}