@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;1,400&family=Inter:wght@300;400;500&display=swap');

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

:root {
  --bg: #FFFFF0;
  --text: #1B2A4A;
  --white: #FFFFFF;
  --gold: #C9B99A;
  --gray-light: #B0B0B0;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Fade-in on load ── */

.fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Navigation ── */

.site-nav {
  position: fixed;
  top: 0;
  right: 0;
  padding: 2rem 2.5rem;
  z-index: 100;
  display: flex;
  gap: 2rem;
}

.site-nav a {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  text-decoration: none;
  color: var(--text);
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.site-nav a:hover {
  opacity: 1;
}

/* ── Page wrapper ── */

.page-wrapper {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 2rem 6rem;
}

/* ── Hero (index) ── */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 2rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text);
}

.hero-line {
  width: 60px;
  height: 1px;
  background-color: var(--gold);
  margin: 2.5rem auto;
}

.hero-tagline {
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--text);
  opacity: 0.55;
  text-transform: lowercase;
}

/* ── Image block ── */

.image-block {
  margin: 6rem auto 4rem;
  max-width: 780px;
  aspect-ratio: 16 / 10;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(27, 42, 74, 0.08);
  background-color: #e8e6df;
}

.image-block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── Identifier line ── */

.identifier-line {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  opacity: 0.5;
  margin-bottom: 5rem;
}

/* ── Summary section ── */

.summary {
  max-width: 620px;
  margin: 0 auto 5rem;
}

.summary p {
  font-size: 0.95rem;
  line-height: 1.85;
  margin-bottom: 1.8rem;
  color: var(--text);
  opacity: 0.75;
}

/* ── Text links row ── */

.links-row {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 6rem;
}

.links-row a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
  opacity: 0.6;
  position: relative;
  transition: opacity 0.3s ease;
}

.links-row a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--gold);
  transition: width 0.3s ease;
}

.links-row a:hover {
  opacity: 1;
}

.links-row a:hover::after {
  width: 100%;
}

/* ── Footer ── */

.site-footer {
  border-top: 1px solid var(--gold);
  padding-top: 3rem;
  text-align: center;
}

.footer-contact {
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  opacity: 0.55;
  margin-bottom: 0.5rem;
}

.footer-contact a {
  color: var(--text);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.footer-contact a:hover {
  opacity: 0.8;
}

.disclaimer {
  font-size: 0.65rem;
  font-weight: 300;
  color: var(--gray-light);
  line-height: 1.6;
  max-width: 540px;
  margin: 2rem auto 0;
}

/* ── Page titles ── */

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  padding-top: 8rem;
  margin-bottom: 4rem;
}

/* ── Password gate (portfolio) ── */

.password-gate {
  max-width: 320px;
  margin: 0 auto 4rem;
  text-align: center;
}

.password-gate input[type="password"] {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--text);
  background: var(--white);
  border: 1px solid rgba(27, 42, 74, 0.12);
  border-radius: 4px;
  outline: none;
  transition: border-color 0.3s ease;
}

.password-gate input[type="password"]:focus {
  border-color: var(--gold);
}

.password-gate button {
  margin-top: 1rem;
  padding: 0.6rem 2.4rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--text);
  background: transparent;
  border: 1px solid rgba(27, 42, 74, 0.15);
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.3s ease, border-color 0.3s ease;
}

.password-gate button:hover {
  opacity: 0.7;
  border-color: var(--gold);
}

.password-error {
  font-size: 0.75rem;
  color: #c0392b;
  opacity: 0;
  margin-top: 0.8rem;
  transition: opacity 0.3s ease;
}

.password-error.show {
  opacity: 0.7;
}

/* ── Protected content ── */

.protected-content {
  display: none;
}

.protected-content.unlocked {
  display: block;
}

/* ── Spreadsheet embed ── */

.spreadsheet-container {
  width: 100%;
  min-height: 500px;
  background: var(--white);
  border: 1px solid rgba(27, 42, 74, 0.06);
  border-radius: 6px;
  padding: 1.5rem;
  margin-bottom: 4rem;
}

.spreadsheet-container iframe {
  width: 100%;
  height: 500px;
  border: none;
}

/* ── Divider ── */

.divider {
  width: 100%;
  height: 1px;
  background-color: var(--gold);
  opacity: 0.4;
  margin: 3rem 0;
}

/* ── Numbered entries ── */

.entry {
  margin-bottom: 4rem;
}

.entry-number {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: 1rem;
}

.entry-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: 1rem;
}

.entry-text {
  font-size: 0.9rem;
  line-height: 1.85;
  opacity: 0.7;
}

/* ── Approach sections ── */

.approach-section {
  margin-bottom: 5rem;
}

.approach-number {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: 1.2rem;
}

.approach-heading {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 1.2rem;
}

.approach-text {
  font-size: 0.9rem;
  line-height: 1.85;
  opacity: 0.7;
  max-width: 620px;
}

/* ── Closing line ── */

.closing-line {
  text-align: center;
  margin: 4rem 0 6rem;
}

.closing-line p {
  font-size: 0.9rem;
  font-weight: 300;
  opacity: 0.6;
  margin-bottom: 1rem;
}

.closing-line a {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
  opacity: 0.6;
  position: relative;
  transition: opacity 0.3s ease;
  cursor: pointer;
}

.closing-line a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--gold);
  transition: width 0.3s ease;
}

.closing-line a:hover {
  opacity: 1;
}

.closing-line a:hover::after {
  width: 100%;
}

/* ── Inquiries trigger ── */

.inquiries-trigger {
  position: fixed;
  bottom: 2rem;
  right: 2.5rem;
  z-index: 200;
}

.inquiries-trigger a {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
  opacity: 0.35;
  transition: opacity 0.3s ease;
  cursor: pointer;
}

.inquiries-trigger a:hover {
  opacity: 0.7;
}

/* ── Inquiries popup ── */

.inquiries-overlay {
  position: fixed;
  inset: 0;
  background: rgba(27, 42, 74, 0.08);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.inquiries-overlay.open {
  opacity: 1;
  visibility: visible;
}

.inquiries-popup {
  position: fixed;
  bottom: 4rem;
  right: 2.5rem;
  z-index: 1000;
  background: var(--white);
  border-radius: 6px;
  padding: 2rem 2rem 1.8rem;
  width: 300px;
  box-shadow: 0 12px 48px rgba(27, 42, 74, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
}

.inquiries-popup.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.inquiries-popup input[type="email"] {
  width: 100%;
  padding: 0.7rem 0.8rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--text);
  background: var(--bg);
  border: 1px solid rgba(27, 42, 74, 0.1);
  border-radius: 4px;
  outline: none;
  transition: border-color 0.3s ease;
}

.inquiries-popup input[type="email"]:focus {
  border-color: var(--gold);
}

.inquiries-popup button {
  margin-top: 0.8rem;
  width: 100%;
  padding: 0.6rem;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--text);
  background: transparent;
  border: 1px solid rgba(27, 42, 74, 0.12);
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.3s ease, border-color 0.3s ease;
}

.inquiries-popup button:hover {
  opacity: 0.7;
  border-color: var(--gold);
}

.inquiries-close {
  position: absolute;
  top: 0.8rem;
  right: 1rem;
  font-size: 0.9rem;
  color: var(--text);
  opacity: 0.3;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-body);
  transition: opacity 0.3s ease;
  line-height: 1;
}

.inquiries-close:hover {
  opacity: 0.6;
}

/* ── Responsive ── */

@media (max-width: 600px) {
  .site-nav {
    padding: 1.5rem 1.5rem;
    gap: 1.5rem;
  }

  .page-wrapper {
    padding: 0 1.2rem 4rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .page-title {
    padding-top: 6rem;
    margin-bottom: 3rem;
  }

  .links-row {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .image-block {
    margin: 4rem auto 3rem;
  }

  .summary {
    margin-bottom: 3rem;
  }

  .password-gate {
    max-width: 280px;
  }

  .inquiries-popup {
    right: 1rem;
    left: 1rem;
    width: auto;
  }

  .inquiries-trigger {
    right: 1.5rem;
    bottom: 1.5rem;
  }

  .spreadsheet-container {
    padding: 0.8rem;
  }
}