/* ============================================================
   Poorna Technology Consulting
   Design system inspired by Anthropic / Claude visual language
   ============================================================ */

/* ── Custom Properties ──────────────────────────────────────── */
:root {
  /* Brand */
  --terracotta:    #c96442;
  --coral:         #d97757;

  /* Surfaces */
  --parchment:     #f5f4ed;
  --ivory:         #faf9f5;
  --white:         #ffffff;
  --warm-sand:     #e8e6dc;

  /* Dark (footer only) */
  --dark-surface:  #30302e;
  --near-black:    #141413;

  /* Text */
  --text-primary:      #141413;
  --text-secondary:    #5e5d59;
  --text-tertiary:     #87867f;
  --text-charcoal:     #4d4c48;
  --text-warm-silver:  #b0aea5;

  /* Borders */
  --border-cream:  #f0eee6;
  --border-warm:   #e8e6dc;
  --border-dark:   #30302e;
  --border-dark-2: #3a3a38;

  /* Typography */
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-sans:  system-ui, -apple-system, Arial, sans-serif;

  /* Radii */
  --r-sm:  8px;
  --r-md:  12px;
  --r-lg:  16px;

  /* Shadows */
  --shadow-whisper: rgba(0, 0, 0, 0.05) 0px 4px 24px;

  /* Layout */
  --max-w:      1200px;
  --px:         32px;
  --section-py: 80px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--parchment);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
}

a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
img  { display: block; max-width: 100%; }

/* ── Layout ─────────────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--px);
}

.section { padding: var(--section-py) 0; }

.section-parchment { background: var(--parchment); }
.section-ivory     {
  background: var(--ivory);
  border-top: 1px solid var(--border-cream);
  border-bottom: 1px solid var(--border-cream);
}
.section-dark      { background: var(--parchment); }

/* Grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* ── Navigation ─────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--parchment);
  border-bottom: 1px solid var(--border-cream);
}

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
  max-width: var(--max-w); margin: 0 auto; padding: 0 var(--px);
}

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.0625rem; font-weight: 500;
  color: var(--terracotta);
  flex-shrink: 0;
}

.nav-logo-mark {
  width: 30px; height: 30px;
  border-radius: 50%; flex-shrink: 0;
}

.nav-links { display: flex; align-items: center; gap: 6px; }

.nav-links a {
  font-size: 0.9375rem; font-weight: 400;
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--r-sm);
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--warm-sand);
}

.nav-links a.nav-cta {
  background: var(--terracotta) !important;
  color: var(--ivory) !important;
  padding: 7px 16px;
  font-weight: 500;
}

.nav-links a.nav-cta:hover  { background: var(--coral) !important; }
.nav-links a.nav-cta.active { background: var(--terracotta) !important; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}

.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--text-primary); border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* ── Hero (homepage) ─────────────────────────────────────────── */
.hero {
  padding: 112px 0 96px;
  background: var(--parchment);
  border-bottom: 1px solid var(--border-cream);
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.875rem; font-weight: 500;
  letter-spacing: 0.5px; text-transform: uppercase;
  color: var(--terracotta); margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 500; line-height: 1.10;
  color: var(--text-primary);
  max-width: 820px; margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.125rem; line-height: 1.65;
  color: var(--text-secondary);
  max-width: 600px; margin-bottom: 40px;
}

.hero-actions {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}

/* ── Page Hero (inner pages) ─────────────────────────────────── */
.page-hero {
  padding: 72px 0 64px;
  background: var(--parchment);
  border-bottom: 1px solid var(--border-cream);
}

.page-hero-centered { text-align: center; }

.page-hero .hero-eyebrow { color: var(--terracotta); }

.page-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 500; line-height: 1.15;
  color: var(--text-primary);
  max-width: 700px; margin-bottom: 16px;
}

.page-hero-title-centered { margin-left: auto; margin-right: auto; }

.page-hero-desc {
  font-size: 1.0625rem; line-height: 1.65;
  color: var(--text-secondary);
  max-width: 560px;
}

.page-hero-desc-spaced { margin-bottom: 40px; }

.page-hero-centered .page-hero-desc { margin-left: auto; margin-right: auto; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center;
  padding: 10px 22px;
  background: var(--terracotta); color: var(--ivory);
  font-family: var(--font-sans); font-size: 1rem; font-weight: 500;
  border-radius: var(--r-sm); border: none; cursor: pointer;
  text-decoration: none;
  box-shadow: var(--terracotta) 0 0 0 0, var(--terracotta) 0 0 0 1px;
  transition: background 0.15s;
}

.btn-primary:hover { background: var(--coral); color: var(--ivory); }

.btn-secondary {
  display: inline-flex; align-items: center;
  padding: 10px 22px;
  background: var(--warm-sand); color: var(--text-charcoal);
  font-family: var(--font-sans); font-size: 1rem; font-weight: 500;
  border-radius: var(--r-sm); border: none; cursor: pointer;
  text-decoration: none;
  box-shadow: var(--warm-sand) 0 0 0 0, #d1cfc5 0 0 0 1px;
  transition: background 0.15s, box-shadow 0.15s;
}

.btn-secondary:hover {
  background: var(--border-warm);
  box-shadow: var(--border-warm) 0 0 0 0, #c2c0b6 0 0 0 1px;
}

.align-self-start { align-self: flex-start; }

/* ── Section Headings ────────────────────────────────────────── */
.section-label {
  display: block;
  font-size: 0.875rem; font-weight: 500;
  letter-spacing: 0.5px; text-transform: uppercase;
  color: var(--terracotta); margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 500; line-height: 1.20;
  color: var(--text-primary); margin-bottom: 16px;
}

.section-title-tight  { margin-bottom: 12px; }

.section-desc {
  font-size: 1.0625rem; line-height: 1.65;
  color: var(--text-secondary); max-width: 560px;
}

.section-desc-spaced { margin-bottom: 24px; }

.section-header { margin-bottom: 48px; }
.section-cta    { margin-top: 48px; }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--ivory);
  border: 1px solid var(--border-cream);
  border-radius: var(--r-sm);
  padding: 28px 32px;
  box-shadow: var(--shadow-whisper);
}

.card-on-ivory {
  background: var(--white);
  border-color: var(--border-warm);
}

.card-label {
  font-size: 0.875rem; font-weight: 500;
  letter-spacing: 0.12px; text-transform: uppercase;
  color: var(--terracotta); margin-bottom: 10px;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.375rem; font-weight: 500; line-height: 1.25;
  color: var(--text-primary); margin-bottom: 10px;
}

.card-text {
  font-size: 0.9375rem; line-height: 1.6;
  color: var(--text-secondary);
}

/* ── Steps ───────────────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.step {
  padding: 28px 24px;
  border: 1px solid var(--border-cream);
  border-radius: var(--r-sm);
  background: var(--parchment);
}

.step-on-ivory { background: var(--white); border-color: var(--border-warm); }

.step-number {
  font-family: var(--font-serif);
  font-size: 2rem; font-weight: 500;
  color: var(--border-warm); line-height: 1; margin-bottom: 16px;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.1875rem; font-weight: 500;
  color: var(--text-primary); margin-bottom: 8px;
}

.step-text { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Service Tags (homepage What We Do) ──────────────────────── */
.service-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }

.service-tag {
  display: inline-flex; align-items: center;
  padding: 8px 16px;
  background: var(--ivory); border: 1px solid var(--border-warm);
  border-radius: 100px;
  font-size: 0.9375rem; color: var(--text-charcoal);
  box-shadow: var(--border-warm) 0 0 0 1px;
}

.section-note {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border-warm);
}

.section-note-text { font-size: 1rem; color: var(--text-secondary); }

.section-link { color: var(--terracotta); font-weight: 500; }
.section-link:hover { color: var(--coral); }

/* ── Differentiators (Why Poorna) ────────────────────────────── */
.item-list { display: flex; flex-direction: column; }
.item-list-constrained { max-width: 760px; }

.differentiator {
  padding: 28px 0;
  border-bottom: 1px solid var(--border-cream);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  align-items: start;
}

.differentiator:first-child { border-top: 1px solid var(--border-cream); }

.differentiator-title {
  font-family: var(--font-serif);
  font-size: 1.0625rem; font-weight: 500;
  color: var(--text-primary); line-height: 1.3;
}

.differentiator-text {
  font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6;
}

/* ── Service Cards (services page) ───────────────────────────── */
.service-card {
  background: var(--ivory);
  border: 1px solid var(--border-cream);
  border-radius: var(--r-sm);
  padding: 32px;
  box-shadow: var(--shadow-whisper);
  transition: box-shadow 0.2s;
}

.service-card:hover { box-shadow: rgba(0,0,0,0.08) 0px 8px 32px; }

.service-card-on-ivory {
  background: var(--white);
  border-color: var(--border-warm);
}

.service-title {
  font-family: var(--font-serif);
  font-size: 1.3rem; font-weight: 500; line-height: 1.25;
  color: var(--text-primary); margin-bottom: 10px;
}

.service-desc {
  font-size: 0.9375rem; color: var(--text-secondary);
  line-height: 1.6; margin-bottom: 20px;
}

.service-items { display: flex; flex-direction: column; }

.service-items li {
  padding: 8px 0;
  border-top: 1px solid var(--border-cream);
  font-size: 0.875rem; color: var(--text-tertiary);
  padding-left: 14px; position: relative;
}

.service-items li::before {
  content: ''; position: absolute; left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 4px;
  background: var(--text-warm-silver); border-radius: 50%;
}

/* Philosophy card (8th card) */
.service-card-feature {
  background: var(--warm-sand) !important;
  border-color: var(--border-warm) !important;
  display: flex; flex-direction: column;
}

.service-philosophy-quote {
  font-family: var(--font-serif);
  font-size: 1.375rem; font-weight: 500; line-height: 1.4;
  color: var(--text-primary); margin-bottom: 16px;
}

.service-philosophy-text {
  font-size: 0.9375rem; line-height: 1.6;
  color: var(--text-secondary); margin-bottom: 28px; flex: 1;
}

.card-label-spaced { margin-bottom: 20px; }

/* ── About: Prose & Stack ─────────────────────────────────────── */
.prose { max-width: 660px; }

.prose p {
  font-size: 1.0625rem; line-height: 1.7;
  color: var(--text-secondary); margin-bottom: 20px;
}

.prose p:last-child { margin-bottom: 0; }

.content-block-spaced { margin-bottom: 32px; }

.stack-list { display: flex; flex-direction: column; }

.stack-item { padding: 20px 0; }

.stack-item-bordered { border-bottom: 1px solid var(--border-warm); }

.feature-title {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.0625rem; font-weight: 500;
  color: var(--text-primary); margin-bottom: 6px;
}

.feature-text { font-size: 0.9375rem; line-height: 1.6; color: var(--text-secondary); }

.body-copy { font-size: 0.9375rem; line-height: 1.7; color: var(--text-secondary); }
.body-copy-spaced { margin-bottom: 16px; }

.action-block { margin-top: 28px; }

/* About: simple item list (Independence section) */
.item-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-cream);
  font-size: 0.9375rem; color: var(--text-secondary);
  padding-left: 18px; position: relative;
}

.item-list li::before {
  content: ''; position: absolute; left: 0; top: 50%;
  transform: translateY(-50%);
  width: 5px; height: 5px;
  background: var(--terracotta); border-radius: 50%;
}

.item-list li:last-child { border-bottom: none; }

/* ── Contact ──────────────────────────────────────────────────── */
.contact-block { margin-bottom: 48px; }

.contact-email-link {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 500; line-height: 1.2;
  color: var(--terracotta);
  transition: color 0.15s;
}

.contact-email-link:hover { color: var(--coral); }

.contact-email-link-centered { display: block; text-align: center; }

.company-details {
  margin-top: 48px;
  padding: 28px 32px;
  background: var(--ivory);
  border: 1px solid var(--border-warm);
  border-radius: var(--r-md);
  max-width: 520px; margin-left: auto; margin-right: auto;
  text-align: left;
}

.company-details .card-label { margin-bottom: 16px; }

.company-details-name {
  font-family: var(--font-serif);
  font-size: 1rem; font-weight: 500;
  color: var(--text-primary); margin-bottom: 10px;
}

.company-details-address {
  font-size: 0.875rem; line-height: 1.7;
  color: var(--text-secondary); margin-bottom: 16px;
}

.company-details-meta {
  border-top: 1px solid var(--border-cream);
  padding-top: 12px;
  display: flex; flex-direction: column; gap: 6px;
}

.company-details-meta p { font-size: 0.8125rem; color: var(--text-tertiary); }

.company-details-meta strong { color: var(--text-charcoal); font-weight: 500; }

.company-details-meta a { color: var(--terracotta); }

/* ── Footer ───────────────────────────────────────────────────── */
.footer {
  background: var(--near-black);
  padding: 48px 0;
  border-top: 1px solid var(--border-dark);
}

.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1rem; font-weight: 500;
  color: var(--text-warm-silver);
}

.footer-links { display: flex; gap: 24px; }

.footer-links a {
  font-size: 0.875rem; color: var(--text-tertiary);
  transition: color 0.15s;
}

.footer-links a:hover { color: var(--text-warm-silver); }

.footer-copy { font-size: 0.8125rem; color: var(--text-tertiary); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 991px) {
  :root { --section-py: 64px; }

  .grid-3  { grid-template-columns: repeat(2, 1fr); }
  .steps   { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 899px) {
  .nav-inner { padding: 0 20px; }
  .nav-logo  { font-size: 1rem; white-space: nowrap; }

  .nav-links {
    display: none; position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--parchment);
    border-bottom: 1px solid var(--border-cream);
    padding: 16px 20px 24px;
    flex-direction: column; align-items: flex-start; gap: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
    z-index: 10;
  }

  .nav-links.open { display: flex; }
  .nav-toggle     { display: flex; }
}

@media (max-width: 767px) {
  :root { --px: 20px; --section-py: 56px; }

  .grid-2, .grid-3       { grid-template-columns: 1fr; }
  .steps                  { grid-template-columns: 1fr; }
  .differentiator         { grid-template-columns: 1fr; gap: 6px; }
  .hero                   { padding: 72px 0 64px; }
  .page-hero              { padding: 56px 0 48px; }
}

@media (max-width: 479px) {
  .hero-title        { font-size: 2rem; }
  .page-hero-title   { font-size: 1.75rem; }
  .section-title     { font-size: 1.5rem; }
}