:root{
  --bg: #F7FAF9;
  --bg-soft: #F1F6F4;
  --text: #0F172A;
  --muted: #64748B;
  --border: rgba(15, 23, 42, 0.10);
  --teal: #0F766E;
  --teal-dark: #115E59;
  --card: #FFFFFF;

  /* Golden ratio-ish spacing scale */
  --s1: 10px;
  --s2: 16px;
  --s3: 26px;   /* 16 * 1.618 */
  --s4: 42px;   /* 26 * 1.618 */
  --s5: 68px;   /* 42 * 1.618 */
  --radius: 10px;
  --max: 1040px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

a{ color: inherit; text-decoration: none; }
.container{
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--s3);
}

.header{
  position: sticky;
  top: 0;
  background: rgba(247, 250, 249, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.header__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo{
  font-weight: 650;
  letter-spacing: -0.01em;
}

.nav{
  display: flex;
  gap: var(--s3);
  align-items: center;
}

.nav__link{
  color: var(--muted);
  font-weight: 550;
}
.nav__link:hover{ color: var(--text); }

.nav__link--cta{
  color: var(--teal);
}
.hero {
  text-align: center;
  padding: 100px 20px 80px;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  line-height: 1.6;
  color: #555;
}

.cta-group {
  margin-top: 30px;
}

.btn-primary {
  background-color: #0F766E;
  color: white;
  padding: 12px 24px;
  margin-right: 15px;
  text-decoration: none;
  border-radius: 6px;
}

.btn-secondary {
  border: 1px solid #0F766E;
  color: #0F766E;
  padding: 12px 24px;
  text-decoration: none;
  border-radius: 6px;
}

.blueprint-section {
  text-align: center;
  padding: 80px 20px;
}

.blueprint-image {
  max-width: 100%;
  margin-top: 40px;
}

.strengths {
  padding: 80px 20px;
  text-align: center;
}

.strength-grid {
  display: flex;
  gap: 40px;
  max-width: 1100px;
  margin: 40px auto 0;
}

.strength-card {
  flex: 1;
}

.final-cta {
  text-align: center;
  padding: 100px 20px;
}

.hero{
  position: relative;
  padding: var(--s5) 0 var(--s4);
  overflow: hidden;
}

.hero__inner{
  position: relative;
  z-index: 2;
}

.hero__bg{
  position: absolute;
  inset: -20% -10% auto auto;
  width: 800px;
  height: 800px;
  background-image: url("phi-bg.svg");
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.1; /* subtle watermark */
  transform: rotate(6deg);
  z-index: 1;
  pointer-events: none;
}

/* Hero metrics strip */
.hero-metrics {
  display: flex;
  gap: var(--s4);
  margin: var(--s4) 0;
  justify-content: center;
  flex-wrap: wrap;
}

.metric {
  text-align: center;
}

.metric__value {
  font-size: 28px;
  font-weight: 700;
  color: var(--teal);
  display: block;
}

.metric__label {
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
}

.kicker{
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 var(--s2);
}

.h1{
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.06;
  margin: 0 0 var(--s3);
  letter-spacing: -0.02em;
}

.subhead{
  max-width: 70ch;
  font-size: 18px;
  color: rgba(15, 23, 42, 0.85);
  margin: 0 0 var(--s4);
}

.actions{
  display: flex;
  gap: var(--s2);
  margin-bottom: var(--s4);
  flex-wrap: wrap;
}

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-weight: 650;
}

.btn--primary{
  background: var(--teal);
  color: white;
  border-color: transparent;
}
.btn--primary:hover{ background: var(--teal-dark); }

.btn--secondary{
  background: transparent;
  color: var(--text);
}
.btn--secondary:hover{ border-color: rgba(15,23,42,0.20); }

.cred{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s3);
  border-top: 1px solid var(--border);
  padding-top: var(--s3);
}

.cred__label{
  color: var(--muted);
  font-weight: 650;
  font-size: 13px;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}
.cred__value{
  font-weight: 550;
}

.section{
  padding: var(--s5) 0;
}
.section--soft{
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__header{
  margin-bottom: var(--s4);
}
.h2{
  font-size: 32px;
  margin: 0 0 var(--s2);
  letter-spacing: -0.015em;
}
.section__sub{
  margin: 0;
  color: var(--muted);
  max-width: 80ch;
}

.grid{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s3);
}

.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--s3);
  transition: border-color 120ms ease;
}
.card:hover{
  border-color: rgba(15, 118, 110, 0.35);
}

.card__title{
  font-weight: 750;
  margin-bottom: 10px;
}
.card__desc{
  color: rgba(15,23,42,0.85);
  margin-bottom: 12px;
}
.card__meta{
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.split{
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--s4);
  align-items: start;
}

.body{
  margin: 0 0 var(--s2);
  max-width: 80ch;
}
.body--muted{ color: var(--muted); }

.panel{
  background: rgba(255,255,255,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--s3);
}

.panel__row{
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: var(--s2);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.panel__row:last-child{ border-bottom: none; }

.panel__label{
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
}
.panel__value{
  font-weight: 600;
}

.textlink{
  color: var(--teal);
  font-weight: 650;
}
.textlink:hover{ color: var(--teal-dark); }

.footer{
  padding: var(--s4) 0;
}
.footer__inner{
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: var(--s3);
}
.dot{ margin: 0 10px; }

@media (max-width: 960px){
  .cred{ grid-template-columns: 1fr; }
  .grid{ grid-template-columns: 1fr; }
  .split{ grid-template-columns: 1fr; }
  .nav{ gap: var(--s2); }
}

/* ============ Responsive layout ============ */

/* Make images never overflow */
img, iframe {
  max-width: 100%;
}

/* Prevent horizontal scroll from long lines */
body {
  overflow-x: hidden;
}

/* Containers: ensure safe padding on small screens */
.container {
  padding-left: 16px;
  padding-right: 16px;
}

/* Header: allow wrapping + better spacing on mobile */
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* Nav: wrap links if needed */
.nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* Buttons: keep readable tap targets */
.btn, .btn--primary, .btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
}

/* Section spacing */
.section {
  padding-top: 72px;
  padding-bottom: 72px;
}

/* Typography scaling */
.h1 { font-size: 44px; line-height: 1.1; }
.h2 { font-size: 32px; line-height: 1.2; }
.body, p, li { font-size: 16px; line-height: 1.6; }

/* If you used a hero without .h1/.h2 classes */
.hero h1 {
  font-size: 44px;
  line-height: 1.1;
}

/* Blueprint image: make it breathe on mobile */
.blueprint-image {
  width: 100%;
  height: auto;
  display: block;
}

/* Strength grid: default desktop behavior (keep if you already have) */
.strength-grid {
  display: flex;
  gap: 32px;
}

/* ============ Breakpoints ============ */
@media (max-width: 900px) {
  .strength-grid {
    flex-direction: column;
  }
}

/* Mobile */
@media (max-width: 640px) {
  /* Smaller top/bottom padding */
  .section {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  /* Headings */
  .h1, .hero h1 { font-size: 32px; }
  .h2 { font-size: 26px; }

  /* Header: stack logo + nav */
  .header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    gap: 10px;
  }

  /* Make nav links easier to tap */
  .nav__link {
    padding: 8px 10px;
  }

  /* Make CTAs stack */
  .cta-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
  }

  /* If you have hero-metrics strip */
  .hero-metrics {
    gap: 16px;
  }

  /* Panels/iframes on resume page */
  iframe {
    height: 70vh;
  }
}