/* ============================================================
   TOKENS
   ============================================================ */
:root {
  --color-base:          #f0f2f5;
  --color-dark:          #1a1a1a;
  --color-warm:          #f5f3ef;
  --color-navy:          #1e2538;
  --color-white:         #ffffff;
  --color-text-primary:  #1a1a1a;
  --color-text-muted:    #888888;
  --color-text-faint:    #aaaaaa;
  --color-text-warm:     #3a3630;
  --color-text-warm-muted: #7a7470;
  --color-border:        rgba(26, 26, 26, 0.12);
  --color-border-faint:  rgba(26, 26, 26, 0.08);

  --font-sans: 'Barlow', sans-serif;
  --nav-height: 64px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-primary);
  background: var(--color-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

img, svg {
  display: block;
}

/* ============================================================
   SKIP LINK + SR-ONLY UTILITY
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   SKIP LINK
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  background: var(--color-dark);
  color: var(--color-base);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 2px;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 1rem;
}

/* ============================================================
   NAV
   ============================================================ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  border-bottom: 0.5px solid transparent;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    color 0.35s ease;

  /* default theme variables — overridden per state below */
  --logo-color:      #1a1a1a;
  --nav-link-color:  #3a3a3a;
  --nav-cta-color:   #1a1a1a;
  --nav-cta-border:  rgba(26, 26, 26, 0.6);
  --mobile-menu-bg:  rgba(240, 242, 245, 0.97);
  --mobile-divider:  rgba(26, 26, 26, 0.07);
}

/* --- Theme states ---
   Each class is named for the SECTION behind the nav.
   The nav background is always the OPPOSITE of that section
   so it reads clearly regardless of scroll position.
   light/warm sections → dark nav   |   dark sections → light nav
   ---------------------------------------------------------------- */
.site-nav.logo--light {
  background: rgba(26, 26, 26, 0.94);
  border-bottom-color: rgba(255, 255, 255, 0.07);
  --logo-color:      #ffffff;
  --nav-link-color:  rgba(255, 255, 255, 0.65);
  --nav-cta-color:   #ffffff;
  --nav-cta-border:  rgba(255, 255, 255, 0.5);
  --mobile-menu-bg:  rgba(26, 26, 26, 0.98);
  --mobile-divider:  rgba(255, 255, 255, 0.07);
}

.site-nav.logo--dark {
  background: rgba(240, 242, 245, 0.94);
  border-bottom-color: rgba(26, 26, 26, 0.08);
  --logo-color:      #1a1a1a;
  --nav-link-color:  #3a3a3a;
  --nav-cta-color:   #1a1a1a;
  --nav-cta-border:  #1a1a1a;
  --mobile-menu-bg:  rgba(240, 242, 245, 0.98);
  --mobile-divider:  rgba(26, 26, 26, 0.07);
}

.site-nav.logo--warm {
  background: rgba(26, 26, 26, 0.94);
  border-bottom-color: rgba(255, 255, 255, 0.07);
  --logo-color:      #ffffff;
  --nav-link-color:  rgba(255, 255, 255, 0.65);
  --nav-cta-color:   #ffffff;
  --nav-cta-border:  rgba(255, 255, 255, 0.5);
  --mobile-menu-bg:  rgba(26, 26, 26, 0.98);
  --mobile-divider:  rgba(255, 255, 255, 0.07);
}

/* --- Logo area --- */
.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--logo-color);
  transition: color 0.35s ease, opacity 0.2s;
}
.logo-area:hover {
  opacity: 0.8;
}

.logo-mark {
  height: 42px;
  width: auto;
  flex-shrink: 0;
}

.logo-wordmark {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* --- Nav links --- */
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nav-link-color);
  transition: color 0.35s ease, opacity 0.2s;
}
.nav-link:hover {
  opacity: 0.6;
}
.nav-link.is-active {
  font-weight: 500;
  opacity: 1;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

/* ============================================================
   FOCUS STYLES — visible outlines for keyboard users
   ============================================================ */
.nav-link:focus-visible,
.logo-area:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
  border-radius: 1px;
}

.nav-cta:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

.hero-cta:focus-visible,
.why-cta:focus-visible,
.scta-btn:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
  border-radius: 1px;
}

.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible {
  outline: 2px solid rgba(26, 26, 26, 0.5);
  outline-offset: 0;
  border-color: rgba(26, 26, 26, 0.35);
}

.form-submit:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

.nav-cta {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nav-cta-color);
  border: 0.5px solid var(--nav-cta-border);
  padding: 7px 14px;
  border-radius: 2px;
  transition:
    color 0.35s ease,
    border-color 0.35s ease,
    opacity 0.2s;
}
.nav-cta:hover {
  opacity: 0.7;
}

/* --- Hamburger toggle (desktop: hidden) --- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px 2px;
  color: var(--logo-color);
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
main {
  padding-top: var(--nav-height);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-dark);
  padding: 28px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #888;
}

.footer-copy {
  font-size: 10px;
  color: #888;
}

/* ============================================================
   SHARED UTILITIES
   ============================================================ */
.section-label {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 10px;
}

/* ============================================================
   PAGE-SPECIFIC STYLES — Phase 2 & 3
   ============================================================ */

/* HOME -------------------------------------------------------- */

.hero {
  background: var(--color-base);
  padding: 96px 64px 88px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: calc(100vh - var(--nav-height));
  justify-content: center;
}

.hero-eyebrow {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.hero-h1 {
  font-size: 52px;
  font-weight: 300;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 640px;
  margin: 0 0 22px;
}

.hero-h1 em {
  font-style: italic;
  color: #555;
}

.hero-sub {
  font-size: 15px;
  color: #666;
  line-height: 1.7;
  max-width: 480px;
  margin: 0 0 40px;
}

.hero-cta {
  display: inline-block;
  background: var(--color-dark);
  color: var(--color-base);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 16px 32px;
  border-radius: 2px;
  transition: opacity 0.2s;
}
.hero-cta:hover { opacity: 0.82; }

.hero-sub-note {
  font-size: 10px;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
  margin-top: 14px;
}

.problem-section {
  background: var(--color-dark);
  padding: 88px 64px;
  text-align: center;
}

.problem-section .section-label {
  color: #888;
}

.problem-h2 {
  font-size: 26px;
  font-weight: 300;
  color: var(--color-base);
  line-height: 1.35;
  letter-spacing: -0.01em;
  max-width: 540px;
  margin: 0 auto 36px;
}

.pain-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 640px;
  margin: 0 auto;
}

.pain-card {
  background: rgba(255, 255, 255, 0.05);
  border: 0.5px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  padding: 20px 16px;
  font-size: 12px;
  color: #aaa;
  line-height: 1.55;
}

.services-overview {
  background: var(--color-base);
  padding: 88px 64px;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 24px;
  max-width: 800px;
}

.service-card {
  background: var(--color-white);
  border: 0.5px solid var(--color-border);
  border-radius: 4px;
  padding: 22px;
}

.service-num {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: #bbb;
  margin-bottom: 10px;
}

.service-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-primary);
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}

.service-desc {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.why-section {
  background: var(--color-warm);
  padding: 88px 64px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.why-section .section-label {
  color: #6a6460;
}

.why-h2 {
  font-size: 26px;
  font-weight: 300;
  color: var(--color-text-warm);
  line-height: 1.4;
  max-width: 480px;
  margin: 0 0 16px;
}

.why-body {
  font-size: 14px;
  color: var(--color-text-warm-muted);
  line-height: 1.75;
  max-width: 460px;
  margin: 0 0 36px;
}

.why-cta {
  display: inline-block;
  border: 0.5px solid rgba(58, 54, 48, 0.45);
  color: var(--color-text-warm);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 13px 28px;
  border-radius: 2px;
  transition: opacity 0.2s;
}
.why-cta:hover { opacity: 0.65; }

/* SERVICES ---------------------------------------------------- */

.page-h1 {
  font-size: 34px;
  font-weight: 300;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}

.page-subtitle {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 500px;
}

.services-hero {
  background: var(--color-base);
  padding: 72px 64px 52px;
}

.services-full {
  background: var(--color-base);
  padding: 0 64px 80px;
}

.service-full-card {
  background: var(--color-white);
  border: 0.5px solid var(--color-border);
  border-radius: 4px;
  padding: 32px;
  margin-bottom: 10px;
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 28px;
  align-items: start;
}

.sfcard-num {
  font-size: 40px;
  font-weight: 300;
  color: #e2e2e2;
  letter-spacing: -0.02em;
  line-height: 1;
  padding-top: 2px;
}

.sfcard-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-primary);
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}

.sfcard-body {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.sfcard-outcome {
  font-size: 11px;
  color: var(--color-text-primary);
  letter-spacing: 0.05em;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 0.5px solid var(--color-border-faint);
}

.services-cta {
  background: var(--color-dark);
  padding: 88px 64px;
  text-align: center;
}

.scta-h {
  font-size: 26px;
  font-weight: 300;
  color: var(--color-base);
  margin-bottom: 12px;
}

.scta-sub {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

.scta-btn {
  display: inline-block;
  background: var(--color-base);
  color: var(--color-dark);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 15px 30px;
  border-radius: 2px;
  transition: opacity 0.2s;
}
.scta-btn:hover { opacity: 0.85; }

/* ABOUT ------------------------------------------------------- */

.about-hero {
  background: var(--color-navy);
  padding: 104px 64px 88px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.about-eyebrow {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #a0a8c0;
  margin-bottom: 20px;
}

.about-h1 {
  font-size: 36px;
  font-weight: 300;
  color: var(--color-base);
  line-height: 1.3;
  letter-spacing: -0.01em;
  max-width: 580px;
}

.about-story {
  background: var(--color-warm);
  padding: 88px 64px;
}

.about-story .section-label {
  color: #b0aba4;
}

.about-story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  max-width: 920px;
}

.story-h {
  font-size: 20px;
  font-weight: 300;
  color: var(--color-text-warm);
  line-height: 1.3;
  margin-bottom: 16px;
}

.story-body {
  font-size: 13px;
  color: var(--color-text-warm-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}
.story-body:last-child { margin-bottom: 0; }

.about-approach {
  background: var(--color-base);
  padding: 88px 64px;
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 28px;
  max-width: 820px;
}

.approach-card {
  border-top: 1.5px solid var(--color-text-primary);
  padding-top: 16px;
}

.approach-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: 10px;
}

.approach-body {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* CONTACT ----------------------------------------------------- */

.contact-hero {
  background: var(--color-base);
  padding: 72px 64px 48px;
}

.contact-body {
  background: var(--color-base);
  padding: 0 64px 88px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
  max-width: 960px;
}

.consult-badge {
  display: inline-block;
  background: var(--color-dark);
  color: var(--color-base);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 2px;
  margin-bottom: 24px;
}

.contact-info-h {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text-primary);
  margin-bottom: 10px;
}

.contact-info-body {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 28px;
}

.contact-detail {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.contact-form-card {
  background: var(--color-white);
  border: 0.5px solid var(--color-border);
  border-radius: 4px;
  padding: 28px;
}

.form-row {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 5px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: #f8f8f8;
  border: 0.5px solid var(--color-border);
  border-radius: 2px;
  padding: 9px 11px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--color-text-primary);
  outline: none; /* overridden by :focus-visible below */
  transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: rgba(26, 26, 26, 0.35);
}

.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
  border-color: rgba(180, 30, 30, 0.45);
}

.form-select {
  color: var(--color-text-muted);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23aaa' stroke-width='1' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 30px;
}

.form-textarea {
  resize: vertical;
  min-height: 96px;
  line-height: 1.6;
}

.form-error {
  display: none;
  font-size: 10px;
  color: #b41e1e;
  margin-top: 5px;
  letter-spacing: 0.02em;
}

/* Honeypot — visually hidden so humans don't see it, bots fill it */
.form-honeypot {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  tab-size: 0;
}

.form-submit {
  width: 100%;
  background: var(--color-dark);
  color: var(--color-base);
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 14px;
  border: none;
  border-radius: 2px;
  margin-top: 6px;
  cursor: pointer;
  transition: opacity 0.2s;
}
.form-submit:hover { opacity: 0.82; }

.form-success {
  font-size: 14px;
  color: var(--color-text-primary);
  text-align: center;
  padding: 40px 0;
  line-height: 1.7;
}

/* ============================================================
   404 PAGE
   ============================================================ */
.error-404 {
  background: var(--color-base);
  padding: 96px 64px 112px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: calc(100vh - var(--nav-height));
  justify-content: center;
}

.error-404-code {
  font-size: 96px;
  font-weight: 300;
  color: #ddd;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 24px;
}

.error-404-h {
  font-size: 22px;
  font-weight: 300;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

.error-404-body {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 380px;
  margin-bottom: 40px;
}

.error-404-cta {
  display: inline-block;
  background: var(--color-dark);
  color: var(--color-base);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 14px 30px;
  border-radius: 2px;
  transition: opacity 0.2s;
}
.error-404-cta:hover { opacity: 0.82; }
.error-404-cta:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
  border-radius: 1px;
}

/* ============================================================
   RESPONSIVE — 768px and below
   ============================================================ */
@media (max-width: 768px) {
  .site-nav {
    padding: 0 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 20px 24px;
    background: var(--mobile-menu-bg);
    border-top: 0.5px solid var(--mobile-divider);
  }

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

  .nav-link {
    width: 100%;
    padding: 13px 0;
    border-bottom: 0.5px solid var(--mobile-divider);
  }

  .nav-cta {
    margin-top: 18px;
    width: 100%;
    text-align: center;
    padding: 11px 0;
  }

  .site-footer {
    padding: 24px 20px;
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  /* Inner pages shared */
  .page-h1 { font-size: 28px; }

  /* Services */
  .services-hero,
  .services-cta {
    padding: 64px 24px;
  }

  .services-full {
    padding: 0 24px 64px;
  }

  .service-full-card {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px;
  }

  .sfcard-num {
    font-size: 28px;
  }

  /* About */
  .about-hero {
    padding: 80px 24px 72px;
  }

  .about-h1 { font-size: 28px; }

  .about-story,
  .about-approach {
    padding: 64px 24px;
  }

  .about-story-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  /* Contact */
  .contact-hero {
    padding: 64px 24px 40px;
  }

  .contact-body {
    padding: 0 24px 64px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* Home */
  .hero {
    padding: 72px 24px 64px;
    min-height: auto;
  }

  .hero-h1 {
    font-size: 36px;
  }

  .hero-sub {
    font-size: 14px;
  }

  .problem-section,
  .services-overview,
  .why-section {
    padding: 72px 24px;
  }

  .problem-h2 {
    font-size: 22px;
  }

  .pain-points {
    grid-template-columns: 1fr;
    max-width: 320px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .why-h2 {
    font-size: 22px;
  }
}