/* ============================================================
   Clickbridge Consulting — Design System v2
   Authoritative. Tech-positive. Alive.
   ============================================================ */

:root {
  --color-bg:          #F7F5F0;
  --color-bg-alt:      #EDEAE3;
  --color-bg-deep:     #1A2E28;
  --color-bg-deep-mid: #243B34;
  --color-text:        #1A1A1A;
  --color-text-muted:  #5C5C5C;
  --color-text-on-dark:#E8E4DC;
  --color-accent:      #2D6A4F;
  --color-accent-light:#40916C;
  --color-accent-glow: #52B788;
  --color-warm:        #C9A96E;
  --color-warm-light:  #D4BC8A;
  --color-line:        #D4CFC4;
  --color-line-dark:   #3A5549;

  --font-serif:  'DM Serif Display', Georgia, serif;
  --font-sans:   'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:   'JetBrains Mono', monospace;

  --max-content: 720px;
  --max-wide:    1080px;
  --section-pad: clamp(5rem, 10vw, 8rem);
  --gutter:      clamp(1.25rem, 4vw, 2.5rem);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: clamp(1rem, 1vw + 0.75rem, 1.125rem);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-light); }

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container--wide {
  max-width: var(--max-wide);
}

section {
  position: relative;
  padding: var(--section-pad) 0;
  overflow: hidden;
}

/* ---- Typography ---- */
h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.75rem, 3vw + 0.5rem, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--color-text);
}

p + p { margin-top: 1.25em; }

.label {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
  display: block;
}

/* ---- Mycelial background SVG ---- */
.mycelial-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.mycelial-bg svg {
  width: 100%;
  height: 100%;
}

/* ---- Navigation ---- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-nav.scrolled {
  border-bottom-color: var(--color-line);
}

.site-nav__wordmark {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.site-nav__wordmark span {
  color: var(--color-accent);
}

.site-nav__link {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.8125rem;
  color: #fff;
  background: var(--color-accent);
  padding: 0.5rem 1.25rem;
  border-radius: 4px;
  transition: background 0.2s ease;
  letter-spacing: 0.01em;
}

.site-nav__link:hover {
  background: var(--color-accent-light);
  color: #fff;
}

/* ---- Hero ---- */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--section-pad) + 4rem);
  background: var(--color-bg);
}

.hero .mycelial-bg {
  opacity: 0.07;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
  }
}

.hero__content {
  max-width: 600px;
}

.hero h1 {
  margin-bottom: 1.75rem;
}

.hero h1 .hero__em {
  color: var(--color-accent);
  font-style: normal;
}

.hero__sub {
  font-size: clamp(1.0625rem, 1.5vw + 0.5rem, 1.1875rem);
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  max-width: 480px;
}

.hero__rule {
  width: 3rem;
  height: 3px;
  background: var(--color-warm);
  border: none;
  margin-bottom: 2rem;
  border-radius: 2px;
}

/* Hero image */
.hero__visual {
  display: none;
}

@media (min-width: 900px) {
  .hero__visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
  }
}

.hero__visual img {
  width: 100%;
  max-width: 480px;
  height: auto;
  border-radius: 12px;
  mix-blend-mode: multiply;
  filter: brightness(1.05) contrast(1.05);
  mask-image: radial-gradient(ellipse 70% 70% at center, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at center, black 40%, transparent 100%);
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.9375rem;
  letter-spacing: 0.015em;
  padding: 1rem 2.25rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(45, 106, 79, 0.2);
}

.btn--primary:hover {
  background: var(--color-accent-light);
  color: #fff;
  box-shadow: 0 4px 16px rgba(45, 106, 79, 0.25);
}

/* ---- Problem Section ---- */
.problem-section {
  background: var(--color-bg-alt);
}

.problem-list {
  list-style: none;
  display: grid;
  gap: 0;
  margin-top: 2.5rem;
}

.problem-list li {
  padding: 1.25rem 0 1.25rem 2rem;
  font-size: clamp(1rem, 1vw + 0.6rem, 1.0625rem);
  line-height: 1.6;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-line);
  position: relative;
}

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

.problem-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1.55rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--color-warm);
  background: transparent;
}

/* ---- Pull Quote ---- */
.pull-quote {
  background: var(--color-bg-deep);
  padding: clamp(3rem, 6vw, 5rem) 0;
  text-align: center;
}

.pull-quote blockquote {
  font-family: var(--font-serif);
  font-size: clamp(1.375rem, 2.5vw + 0.5rem, 2rem);
  line-height: 1.4;
  color: var(--color-text-on-dark);
  max-width: 680px;
  margin: 0 auto;
  position: relative;
}

.pull-quote blockquote::before {
  content: '';
  display: block;
  width: 2.5rem;
  height: 3px;
  background: var(--color-warm);
  margin: 0 auto 2rem;
  border-radius: 2px;
}

.pull-quote .mycelial-bg {
  opacity: 0.08;
}

/* ---- Outcomes Section ---- */
.outcomes-section {
  background: var(--color-bg);
}

.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 640px) {
  .outcomes-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.outcome-card {
  padding: 2rem;
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.outcome-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 1.5rem;
  right: 1.5rem;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-glow));
  border-radius: 0 0 2px 2px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.outcome-card:hover {
  border-color: var(--color-accent-glow);
  box-shadow: 0 4px 20px rgba(45, 106, 79, 0.08);
}

.outcome-card:hover::before {
  opacity: 1;
}

.outcome-card__number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent-glow);
  margin-bottom: 0.75rem;
  display: block;
}

.outcome-card h3 {
  margin-bottom: 0.625rem;
  font-size: 1.0625rem;
}

.outcome-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ---- Credibility Section ---- */
.cred-section {
  background: var(--color-bg-alt);
}

.cred-intro {
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  max-width: 560px;
}

.cred-items {
  display: grid;
  gap: 0;
}

.cred-item {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 0;
  align-items: stretch;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-line);
}

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

.cred-marker-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.25rem;
}

.cred-marker {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.cred-marker-line {
  width: 2px;
  flex-grow: 1;
  background: var(--color-accent);
  opacity: 0.2;
  margin-top: 0.5rem;
}

.cred-item:last-child .cred-marker-line {
  display: none;
}

.cred-item p {
  font-size: 1rem;
  line-height: 1.65;
}

.cred-item strong {
  font-weight: 600;
  color: var(--color-text);
  display: block;
  margin-bottom: 0.125rem;
}

/* ---- Referral Section — dark band ---- */
.referral-section {
  background: var(--color-bg-deep);
  color: var(--color-text-on-dark);
}

.referral-section .label {
  color: var(--color-accent-glow);
}

.referral-section h2 {
  color: var(--color-text-on-dark);
}

.referral-section p {
  color: rgba(232, 228, 220, 0.7);
}

.referral-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.referral-tag {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
  padding: 0.625rem 1.5rem;
  border: 1px solid var(--color-line-dark);
  border-radius: 100px;
  color: var(--color-text-on-dark);
  background: transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.referral-tag:hover {
  border-color: var(--color-accent-glow);
  background: rgba(82, 183, 136, 0.08);
}

/* ---- Contact Section ---- */
.contact-section {
  background: var(--color-bg);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}

@media (min-width: 768px) {
  .contact-wrap {
    grid-template-columns: 1fr 1.1fr;
    gap: 5rem;
  }
}

.contact-intro h2 {
  color: var(--color-text);
}

.contact-intro p {
  color: var(--color-text-muted);
  margin-top: 1rem;
}

.contact-intro .label {
  margin-bottom: 0.75rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  border: 1px solid var(--color-line);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-field label {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-text);
}

.form-field label .optional {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

.form-field input,
.form-field textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.1);
  background: #fff;
}

.form-field textarea {
  min-height: 120px;
  resize: vertical;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--color-line);
}

.form-success {
  display: none;
  padding: 2rem;
  background: rgba(45, 106, 79, 0.06);
  border: 1px solid var(--color-accent);
  border-radius: 8px;
  color: var(--color-accent);
  font-weight: 500;
  line-height: 1.5;
}

.form-success.visible {
  display: block;
}

.contact-email {
  margin-top: 2rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.contact-email a {
  font-weight: 500;
}

/* ---- Footer ---- */
.site-footer {
  padding: 2.5rem 0;
  background: var(--color-bg-deep);
  text-align: center;
}

.site-footer p {
  font-size: 0.8125rem;
  color: rgba(232, 228, 220, 0.5);
}

.site-footer__wordmark {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-on-dark);
  margin-bottom: 0.375rem;
  letter-spacing: 0.02em;
}

/* ---- Divider element ---- */
.section-divider {
  width: 2.5rem;
  height: 2px;
  background: var(--color-warm);
  border: none;
  margin-bottom: 1.5rem;
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
  .hero {
    min-height: auto;
    padding-top: calc(var(--section-pad) + 3rem);
    padding-bottom: var(--section-pad);
  }

  .site-nav {
    padding: 1rem var(--gutter);
  }

  .site-nav__link {
    padding: 0.4rem 1rem;
    font-size: 0.75rem;
  }

  .outcomes-grid {
    gap: 1rem;
  }

  .outcome-card {
    padding: 1.5rem;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .cred-item {
    grid-template-columns: 2.5rem 1fr;
  }
}