/* ============================================================
   RITWIK PORTFOLIO — BALANCED DESIGN SYSTEM
   Clean · Professional · Calm · Conversion-focused
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* --- CSS Variables --- */
:root {
  --clr-bg:         #FAFAF8;
  --clr-white:      #FFFFFF;
  --clr-surface:    #F4F2EE;
  --clr-border:     #E2DDD6;
  --clr-text:       #1C1C1C;
  --clr-text-mid:   #4A4A4A;
  --clr-text-muted: #8A8580;
  --clr-accent:     #B5541C;   /* warm terracotta */
  --clr-accent-lt:  #F5EDE6;
  --clr-dark:       #1A1A18;
  --clr-dark-mid:   #2C2C2A;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;

  --shadow-sm: 0 1px 4px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.09);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.11);

  --max-w: 1100px;
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.25;
  font-weight: 600;
  color: var(--clr-text);
}

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
h4 { font-size: 1rem; }

p { color: var(--clr-text-mid); font-size: 1rem; }

.serif { font-family: var(--font-serif); }
.accent { color: var(--clr-accent); }

/* --- Layout Helpers --- */
.container {
  width: 90%;
  max-width: var(--max-w);
  margin: 0 auto;
}

.section { padding: 88px 0; }
.section-sm { padding: 56px 0; }

.section-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 14px;
}

.section-title {
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--clr-text-mid);
  max-width: 560px;
  margin-bottom: 48px;
  line-height: 1.75;
}

.divider {
  width: 48px;
  height: 2px;
  background: var(--clr-accent);
  margin: 20px 0 40px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
}
.btn-primary:hover {
  background: #9e4416;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--clr-accent);
  border: 1.5px solid var(--clr-accent);
}
.btn-outline:hover {
  background: var(--clr-accent-lt);
}

.btn-dark {
  background: var(--clr-dark);
  color: #fff;
}
.btn-dark:hover {
  background: var(--clr-dark-mid);
  transform: translateY(-1px);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--clr-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: -0.02em;
}

.nav-logo span { color: var(--clr-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--clr-text-mid);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--clr-text); }

.nav-cta { margin-left: 8px; }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  padding: 96px 0 88px;
  background: var(--clr-white);
  border-bottom: 1px solid var(--clr-border);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 72px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--clr-accent-lt);
  border: 1px solid #e8c4ae;
  color: var(--clr-accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 2px;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
}

.hero-title {
  margin-bottom: 22px;
  letter-spacing: -0.02em;
}

.hero-title em {
  font-style: italic;
  color: var(--clr-accent);
}

.hero-sub {
  font-size: 1.08rem;
  color: var(--clr-text-mid);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.8;
}

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

/* Hero Card */
.hero-card {
  background: var(--clr-dark);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  color: #fff;
}

.hero-card-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 20px;
}

.hero-stat {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.hero-stat:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }

.hero-stat-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-num span { color: #ffffff; }

.hero-stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  font-weight: 400;
}

.hero-stat-client {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  margin-top: 3px;
  font-style: italic;
}

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: 0 24px;
  border-right: 1px solid var(--clr-border);
}
.stat-item:last-child { border-right: none; }

.stat-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-num .accent { color: var(--clr-accent); }

.stat-label {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  font-weight: 400;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about {
  background: var(--clr-white);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-photo-wrap {
  position: relative;
}

.about-photo-placeholder {
  width: 100%;
  aspect-ratio: 4/5;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--clr-text-muted);
}

.about-photo-placeholder .icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
}
.about-photo-placeholder p { font-size: 0.82rem; }

.about-tag-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.about-tag {
  background: var(--clr-accent-lt);
  color: var(--clr-accent);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 2px;
  letter-spacing: 0.03em;
}

.about-text p + p { margin-top: 18px; }

.about-credentials {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cred-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--clr-text-mid);
}

.cred-icon {
  width: 36px;
  height: 36px;
  background: var(--clr-accent-lt);
  border: 1px solid #e8c4ae;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  flex-shrink: 0;
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services {
  background: var(--clr-bg);
}

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

.service-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: var(--transition);
}

.service-card:hover {
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--clr-accent-lt);
  border: 1px solid #e8c4ae;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-accent);
  margin-bottom: 20px;
}

.service-card h3 {
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-list li {
  font-size: 0.85rem;
  color: var(--clr-text-mid);
  padding-left: 16px;
  position: relative;
}

.service-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--clr-accent);
  font-size: 0.78rem;
}

/* ============================================================
   CASE STUDIES SECTION
   ============================================================ */
.work {
  background: var(--clr-white);
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.work-card {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--clr-white);
  transition: var(--transition);
}

.work-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.work-card-header {
  padding: 28px 28px 20px;
  border-bottom: 1px solid var(--clr-border);
}

.work-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
  margin-bottom: 14px;
}

.work-tag.catering  { background: #f5ede6; color: var(--clr-accent); }
.work-tag.hospitality { background: #e8edf5; color: #2d5fa0; }
.work-tag.live      { background: #edf5ee; color: #2e7d32; }

.work-card h3 { margin-bottom: 8px; font-size: 1.2rem; }
.work-card .work-brief { font-size: 0.87rem; color: var(--clr-text-mid); }

.work-card-body {
  padding: 20px 28px 28px;
}

.work-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

.work-metric-num {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1;
  margin-bottom: 3px;
}

.work-metric-num .accent { color: var(--clr-accent); }

.work-metric-label {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
}

.work-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--clr-accent);
  transition: gap var(--transition);
}

.work-card-link:hover { gap: 10px; }

/* Live badge */
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #2e7d32;
  background: #edf5ee;
  border: 1px solid #c8e6c9;
  padding: 4px 10px;
  border-radius: 2px;
  margin-bottom: 14px;
}

.live-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #2e7d32;
  animation: pulse-green 1.8s infinite;
}

@keyframes pulse-green {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ============================================================
   PROCESS SECTION
   ============================================================ */
.process {
  background: var(--clr-surface);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: var(--clr-border);
}

.process-step {
  text-align: center;
  padding: 0 20px;
  position: relative;
}

.step-num {
  width: 56px;
  height: 56px;
  background: var(--clr-white);
  border: 1.5px solid var(--clr-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-accent);
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
  background: var(--clr-white);
}

.process-step h4 {
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.83rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

/* ============================================================
   TESTIMONIALS SECTION
   ============================================================ */
.testimonials {
  background: var(--clr-white);
}

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

.testimonial-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 28px;
}

.testimonial-quote {
  font-size: 2rem;
  color: var(--clr-accent);
  font-family: var(--font-serif);
  line-height: 1;
  margin-bottom: 14px;
}

.testimonial-text {
  font-size: 0.93rem;
  color: var(--clr-text-mid);
  line-height: 1.75;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testi-avatar {
  width: 40px;
  height: 40px;
  background: var(--clr-surface);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  flex-shrink: 0;
  border: 1px solid var(--clr-border);
}

.testi-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--clr-text);
}

.testi-role {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
}

.star-strip {
  color: #d97706;
  font-size: 0.85rem;
  margin-bottom: 6px;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  background: var(--clr-dark);
  color: #fff;
}

.cta-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255,255,255,0.65);
  font-size: 1.05rem;
  margin-bottom: 36px;
}

.cta-checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
  max-width: 380px;
  margin: 0 auto 36px;
}

.cta-check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

.cta-check::before {
  content: '✓';
  width: 22px;
  height: 22px;
  background: rgba(181,84,28,0.25);
  border: 1px solid rgba(181,84,28,0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--clr-accent);
  flex-shrink: 0;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--clr-dark-mid);
  padding: 48px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .nav-logo { color: #fff; }
.footer-brand p {
  color: rgba(255,255,255,0.45);
  font-size: 0.85rem;
  margin-top: 12px;
  max-width: 240px;
}

.footer-col h4 {
  color: rgba(255,255,255,0.7);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-family: var(--font-sans);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-links a:hover { color: rgba(255,255,255,0.9); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}

.footer-email a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-email a:hover { color: var(--clr-accent); }

/* ============================================================
   CASE STUDY PAGE STYLES
   ============================================================ */

/* Progress Bar */
.progress-bar-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--clr-border);
  z-index: 200;
}

.progress-bar-fill {
  height: 100%;
  background: var(--clr-accent);
  width: 0%;
  transition: width 0.1s linear;
}

/* Case Study Hero */
.cs-hero {
  background: var(--clr-dark);
  color: #fff;
  padding: 96px 0 72px;
}

.cs-hero-inner {
  max-width: 760px;
}

.cs-tag {
  display: inline-block;
  background: rgba(181,84,28,0.25);
  border: 1px solid rgba(181,84,28,0.5);
  color: #e8956a;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 2px;
  margin-bottom: 20px;
}

.cs-hero h1 { color: #fff; margin-bottom: 18px; }

.cs-hero .lead {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.65);
  max-width: 600px;
  line-height: 1.8;
}

.cs-metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.06);
  margin-top: 48px;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.cs-metric {
  background: rgba(255,255,255,0.03);
  padding: 24px 20px;
  text-align: center;
}

.cs-metric-num {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.cs-metric-num .accent { color: #e8956a; }

.cs-metric-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
}

/* Case Study Layout */
.cs-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 56px;
  align-items: start;
  padding: 72px 0;
}

.cs-body {}

/* CS Sections */
.cs-section {
  margin-bottom: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--clr-border);
}

.cs-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.cs-section-num {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 8px;
}

.cs-section h2 {
  margin-bottom: 20px;
  font-size: 1.7rem;
}

.cs-section p {
  line-height: 1.8;
  margin-bottom: 16px;
}

/* Problem Cards */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.problem-card {
  background: #fff8f5;
  border: 1px solid #efd4c4;
  border-left: 4px solid var(--clr-accent);
  border-radius: var(--radius-sm);
  padding: 20px 22px;
}

.problem-card h4 {
  font-size: 0.95rem;
  margin-bottom: 6px;
  color: var(--clr-text);
}

.problem-card p {
  font-size: 0.88rem;
  color: var(--clr-text-mid);
  margin-bottom: 0;
}

/* Strategy Steps */
.strategy-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 24px;
}

.strategy-step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 18px;
  align-items: start;
}

.strategy-num {
  width: 40px;
  height: 40px;
  background: var(--clr-accent-lt);
  border: 1px solid #e8c4ae;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--clr-accent);
  flex-shrink: 0;
}

.strategy-step h4 { font-size: 0.95rem; margin-bottom: 5px; }
.strategy-step p  { font-size: 0.88rem; color: var(--clr-text-mid); margin-bottom: 0; }

/* Before/After Table */
.ba-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin-top: 24px;
}

.ba-table th {
  text-align: left;
  padding: 12px 16px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  font-family: var(--font-sans);
}

.ba-table td {
  padding: 13px 16px;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-mid);
  vertical-align: top;
}

.ba-table td:first-child { font-weight: 500; color: var(--clr-text); }
.ba-table td.before { color: #b34a3a; }
.ba-table td.after  { color: #2e7d32; font-weight: 500; }

/* Timeline */
.timeline {
  position: relative;
  margin-top: 28px;
  padding-left: 28px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--clr-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 28px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--clr-accent);
  border: 2px solid var(--clr-white);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--clr-accent);
}

.timeline-date {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 5px;
}

.timeline-item h4 { font-size: 0.95rem; margin-bottom: 5px; }
.timeline-item p  { font-size: 0.87rem; color: var(--clr-text-mid); margin-bottom: 0; }

/* Charts */
.chart-wrap {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 24px;
}

.chart-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-text-mid);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

/* Key Learnings */
.learnings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.learning-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 22px;
}

.learning-num {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--clr-surface);
  line-height: 1;
  margin-bottom: 10px;
}

.learning-card h4 { font-size: 0.92rem; margin-bottom: 7px; }
.learning-card p  { font-size: 0.85rem; color: var(--clr-text-muted); margin-bottom: 0; }

/* Client Quote */
.quote-block {
  background: var(--clr-dark);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-top: 24px;
  position: relative;
}

.quote-mark {
  font-family: var(--font-serif);
  font-size: 5rem;
  color: rgba(181,84,28,0.3);
  line-height: 0.7;
  margin-bottom: 16px;
  display: block;
}

.quote-text {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 24px;
}

.quote-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.q-avatar {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.q-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
}

.q-role {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
}

/* Sticky Sidebar */
.cs-sidebar {
  position: sticky;
  top: 88px;
}

.sidebar-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 20px;
}

.sidebar-card h4 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-bottom: 16px;
  font-family: var(--font-sans);
}

.sidebar-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.85rem;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--clr-border);
}

.sidebar-meta-row:last-child { border-bottom: none; padding-bottom: 0; }

.meta-label { color: var(--clr-text-muted); }
.meta-val   { font-weight: 500; color: var(--clr-text); text-align: right; }

.sidebar-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-tag {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-mid);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 2px;
}

.sidebar-result {
  background: var(--clr-dark);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 20px;
}

.sidebar-result-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}

.sidebar-result-stat {
  margin-bottom: 14px;
}

.sidebar-result-stat:last-child { margin-bottom: 0; }

.sr-num {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.sr-num .accent { color: #e8956a; }

.sr-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  margin-top: 3px;
}

.sidebar-cta {
  background: var(--clr-accent);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}

.sidebar-cta p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 14px;
}

.sidebar-cta .btn-white {
  background: #fff;
  color: var(--clr-accent);
  font-weight: 600;
  width: 100%;
  justify-content: center;
}

.sidebar-cta .btn-white:hover {
  background: #f5f5f5;
}

/* TOC */
.toc-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toc-links a {
  font-size: 0.83rem;
  color: var(--clr-text-mid);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-links a::before {
  content: '';
  width: 16px;
  height: 1px;
  background: var(--clr-border);
  transition: background var(--transition), width var(--transition);
}

.toc-links a:hover {
  color: var(--clr-accent);
}

.toc-links a:hover::before {
  background: var(--clr-accent);
  width: 22px;
}

/* Live project notice */
.live-project-notice {
  background: #f0f7f0;
  border: 1px solid #c8e6c9;
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin-top: 24px;
}

.live-project-notice h4 {
  font-size: 0.95rem;
  color: #2e7d32;
  margin-bottom: 8px;
}

.live-project-notice p {
  font-size: 0.87rem;
  color: #4a7750;
  margin-bottom: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-inner          { grid-template-columns: 1fr; gap: 48px; }
  .hero-card           { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
  .hero-stat           { padding: 0 20px; border-bottom: none; border-right: 1px solid rgba(255,255,255,0.08); margin: 0; }
  .hero-stat:last-child{ border-right: none; }
  .stats-grid          { grid-template-columns: repeat(2, 1fr); }
  .stat-item           { border-right: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border); padding: 20px; }
  .stat-item:nth-child(2n){ border-right: none; }
  .about-inner         { grid-template-columns: 1fr; gap: 40px; }
  .about-photo-wrap    { max-width: 340px; }
  .services-grid       { grid-template-columns: 1fr 1fr; }
  .work-grid           { grid-template-columns: 1fr; max-width: 480px; }
  .process-steps       { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-steps::before{ display: none; }
  .testimonials-grid   { grid-template-columns: 1fr; }
  .footer-inner        { grid-template-columns: 1fr 1fr; }
  .cs-metrics-strip    { grid-template-columns: repeat(2, 1fr); }
  .cs-layout           { grid-template-columns: 1fr; }
  .cs-sidebar          { position: static; }
  .learnings-grid      { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .nav-links           { display: none; }
  .section             { padding: 64px 0; }
  .services-grid       { grid-template-columns: 1fr; }
  .hero-card           { grid-template-columns: 1fr; }
  .hero-stat           { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); padding: 16px 0; }
  .stats-grid          { grid-template-columns: 1fr 1fr; }
  .work-metrics        { grid-template-columns: 1fr 1fr; }
  .footer-inner        { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom       { flex-direction: column; gap: 10px; text-align: center; }
  .cs-metrics-strip    { grid-template-columns: repeat(2, 1fr); }
  .hero-actions        { flex-direction: column; }
  .btn                 { width: 100%; justify-content: center; }
}