/* =========================================
   RINKU BARUA — PROFESSIONAL PORTFOLIO
   Design: Premium Editorial / Executive
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=Playfair+Display:wght@500;600;700&display=swap');

:root {
  --navy: #101e32;
  --navy-light: #1b304b;
  --gold: #b89a61;
  --gold-light: #d6c49d;
  --cream: #f6f4ef;
  --white: #ffffff;
  --text: #263345;
  --muted: #707986;
  --line: #e5e1d8;
  --max-width: 1160px;
  --shadow: 0 18px 50px rgba(16, 30, 50, 0.08);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
}

.section {
  padding: 105px 0;
}

.section-white {
  background: var(--white);
}

.section-dark {
  background: var(--navy);
  color: var(--white);
}

.section-heading {
  max-width: 700px;
  margin-bottom: 48px;
}

.eyebrow {
  display: inline-block;
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  margin-bottom: 15px;
}

.section-heading h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(34px, 5vw, 49px);
  line-height: 1.2;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 17px;
}

.section-dark .section-heading h2 {
  color: var(--white);
}

.section-heading p {
  color: var(--muted);
  font-size: 16px;
  max-width: 620px;
}

.section-dark .section-heading p {
  color: #c1cad5;
}

/* HEADER */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(246, 244, 239, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(16, 30, 50, 0.08);
}

.navbar {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.logo {
  color: var(--navy);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.7px;
  white-space: nowrap;
}

.logo span {
  color: var(--gold);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 27px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  transition: color 0.25s ease;
}

.nav-links a:hover {
  color: var(--gold);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  color: var(--white) !important;
  padding: 11px 19px;
  border-radius: 3px;
  transition: background 0.25s ease, transform 0.25s ease;
}

.nav-cta:hover {
  background: var(--gold);
  transform: translateY(-2px);
}

/* HERO */

.hero {
  background: var(--navy);
  color: var(--white);
  padding: 105px 0 110px;
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(214, 196, 157, 0.12);
  border-radius: 50%;
  right: -190px;
  top: -220px;
}

.hero::after {
  content: "";
  position: absolute;
  width: 370px;
  height: 370px;
  border: 1px solid rgba(214, 196, 157, 0.09);
  border-radius: 50%;
  right: -110px;
  top: -145px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  align-items: center;
  gap: 80px;
  position: relative;
  z-index: 1;
}

.hero .eyebrow {
  color: var(--gold-light);
}

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(45px, 6vw, 72px);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: -1.5px;
  max-width: 730px;
  margin-bottom: 25px;
}

.hero h1 span {
  color: var(--gold-light);
}

.hero-description {
  max-width: 640px;
  color: #c4ccd6;
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 42px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 49px;
  padding: 12px 23px;
  font-size: 13px;
  font-weight: 700;
  border: 1px solid transparent;
  border-radius: 3px;
  transition: all 0.25s ease;
}

.button-primary {
  background: var(--gold);
  color: var(--navy);
}

.button-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
}

.button-outline {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--white);
}

.button-outline:hover {
  border-color: var(--gold);
  color: var(--gold-light);
}

.hero-speciality {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 23px;
  color: #c6ced8;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.4px;
}

.hero-speciality span::before {
  content: "•";
  color: var(--gold);
  margin-right: 9px;
}

.hero-image-wrap {
  position: relative;
  width: 100%;
  max-width: 340px;
  justify-self: end;
}

.hero-image-wrap::before {
  content: "";
  position: absolute;
  inset: -13px 13px 13px -13px;
  border: 1px solid var(--gold);
  opacity: 0.75;
}

.hero-image {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  background: #263a51;
  filter: saturate(0.88);
}

/* INTRODUCTION STRIP */

.intro-strip {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  padding: 29px 0;
}

.intro-strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
}

.intro-strip p {
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}

.intro-strip span {
  color: var(--gold);
}

/* ABOUT */

.about-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 75px;
  align-items: start;
}

.about-aside {
  border-left: 3px solid var(--gold);
  padding: 8px 0 8px 25px;
}

.about-aside h3 {
  font-family: 'Playfair Display', serif;
  font-size: 27px;
  line-height: 1.35;
  color: var(--navy);
  margin-bottom: 14px;
}

.about-aside p {
  color: var(--muted);
  font-size: 14px;
}

.about-content p {
  font-size: 16px;
  color: #586271;
  margin-bottom: 19px;
}

.about-highlight {
  margin-top: 28px;
  padding: 24px 27px;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  color: var(--navy);
  font-weight: 600;
  font-size: 15px;
}

/* EXPERIENCE */

.experience-list {
  position: relative;
  max-width: 900px;
  margin-left: 8px;
}

.experience-list::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 15px;
  left: 8px;
  width: 1px;
  background: #dcd6c9;
}

.experience-item {
  position: relative;
  padding: 0 0 45px 43px;
}

.experience-item:last-child {
  padding-bottom: 0;
}

.experience-item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 3px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--gold);
  background: var(--cream);
  border-radius: 50%;
  z-index: 1;
}

.experience-date {
  display: inline-block;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 9px;
  text-transform: uppercase;
}

.experience-item h3 {
  font-family: 'Playfair Display', serif;
  color: var(--navy);
  font-size: 25px;
  margin-bottom: 4px;
}

.experience-role {
  color: #667180;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
}

.experience-item p {
  color: var(--muted);
  font-size: 14px;
  max-width: 760px;
}

/* EXPERTISE */

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.expertise-card {
  background: var(--white);
  padding: 30px 27px;
  min-height: 190px;
  transition: background 0.25s ease;
}

.expertise-card:hover {
  background: #fbfaf7;
}

.expertise-number {
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 22px;
}

.expertise-card h3 {
  color: var(--navy);
  font-size: 17px;
  margin-bottom: 9px;
}

.expertise-card p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

/* CAREER EVIDENCE */

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.evidence-card {
  padding: 30px;
  background: var(--white);
  border: 1px solid var(--line);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.evidence-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.evidence-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 11px;
}

.evidence-card p {
  color: var(--muted);
  font-size: 14px;
}

/* COLOUR CAT */

.initiative-panel {
  background: var(--navy-light);
  border: 1px solid rgba(214, 196, 157, 0.25);
  padding: 55px;
  display: grid;
  grid-template-columns: 1fr 0.75fr;
  gap: 55px;
  align-items: center;
}

.initiative-panel .eyebrow {
  color: var(--gold-light);
}

.initiative-panel h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.2;
  margin-bottom: 18px;
}

.initiative-panel p {
  color: #c5cfda;
  font-size: 14px;
  margin-bottom: 16px;
}

.initiative-details {
  border-left: 1px solid rgba(214, 196, 157, 0.45);
  padding-left: 30px;
}

.initiative-details h3 {
  color: var(--gold-light);
  font-size: 14px;
  margin-bottom: 15px;
}

.initiative-details ul {
  list-style: none;
}

.initiative-details li {
  color: #e0e5eb;
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.initiative-details li::before {
  content: "—";
  color: var(--gold);
  margin-right: 10px;
}

/* EDUCATION & TRAINING */

.education-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.education-card {
  background: var(--cream);
  padding: 32px;
  border-top: 3px solid var(--gold);
}

.education-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 23px;
  color: var(--navy);
  margin-bottom: 20px;
}

.education-entry {
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.education-entry:last-child {
  border-bottom: 0;
}

.education-entry h4 {
  color: var(--navy);
  font-size: 15px;
  margin-bottom: 4px;
}

.education-entry p {
  color: var(--muted);
  font-size: 13px;
}

/* CONTACT */

.contact-section {
  background: var(--navy);
  color: var(--white);
  padding: 95px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 70px;
  align-items: center;
}

.contact-section h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(37px, 5vw, 53px);
  line-height: 1.2;
  margin-bottom: 20px;
}

.contact-section .contact-description {
  color: #c2ccd7;
  max-width: 560px;
  font-size: 15px;
}

.contact-info {
  border-left: 1px solid rgba(214, 196, 157, 0.45);
  padding-left: 32px;
}

.contact-item {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.contact-item:last-child {
  border-bottom: 0;
}

.contact-item small {
  display: block;
  color: var(--gold-light);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 5px;
}

.contact-item a,
.contact-item p {
  color: var(--white);
  font-size: 14px;
  overflow-wrap: anywhere;
}

.contact-item a:hover {
  color: var(--gold-light);
}

/* FOOTER */

.site-footer {
  background: #0a1423;
  color: #aeb8c5;
  padding: 25px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.footer-inner p {
  font-size: 12px;
}

.footer-inner strong {
  color: var(--gold-light);
}

/* GENERAL LINKS & DETAILS */

.text-link {
  color: var(--gold);
  font-weight: 700;
  font-size: 13px;
}

.text-link:hover {
  color: var(--navy);
}

::selection {
  background: var(--gold-light);
  color: var(--navy);
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

/* RESPONSIVE: TABLET */

@media (max-width: 900px) {
  .section {
    padding: 80px 0;
  }

  .hero {
    padding: 80px 0;
  }

  .hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
  }

  .hero-image-wrap {
    max-width: 280px;
  }

  .nav-links {
    gap: 14px;
  }

  .nav-links a {
    font-size: 12px;
  }

  .about-grid {
    gap: 40px;
  }

  .initiative-panel {
    padding: 38px;
    gap: 35px;
  }

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

/* RESPONSIVE: MOBILE */

@media (max-width: 640px) {
  .container {
    width: min(100% - 36px, var(--max-width));
  }

  .section {
    padding: 66px 0;
  }

  .navbar {
    min-height: 68px;
    flex-wrap: wrap;
    gap: 10px;
    padding: 13px 0;
  }

  .logo {
    font-size: 17px;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding: 5px 0 7px;
    gap: 21px;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links li {
    flex-shrink: 0;
  }

  .nav-links a {
    font-size: 11px;
  }

  .nav-cta {
    padding: 8px 12px;
  }

  .hero {
    padding: 64px 0 70px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .hero h1 {
    font-size: clamp(42px, 12vw, 57px);
  }

  .hero-description {
    font-size: 15px;
  }

  .hero-image-wrap {
    max-width: 245px;
    justify-self: start;
    margin-left: 14px;
  }

  .hero-speciality {
    gap: 10px 16px;
  }

  .intro-strip-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }

  .section-heading {
    margin-bottom: 33px;
  }

  .section-heading h2 {
    font-size: 35px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about-content p {
    font-size: 15px;
  }

  .experience-item {
    padding-left: 34px;
    padding-bottom: 35px;
  }

  .experience-item h3 {
    font-size: 22px;
  }

  .expertise-grid,
  .evidence-grid,
  .education-grid {
    grid-template-columns: 1fr;
  }

  .expertise-card {
    min-height: auto;
    padding: 25px;
  }

  .initiative-panel {
    grid-template-columns: 1fr;
    padding: 28px 23px;
    gap: 25px;
  }

  .initiative-details {
    border-left: 0;
    border-top: 1px solid rgba(214, 196, 157, 0.45);
    padding: 23px 0 0;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 35px;
  }

  .contact-info {
    padding-left: 20px;
  }

  .contact-section {
    padding: 70px 0;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* ACCESSIBILITY: REDUCED MOTION */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}