/* ─────────────────────────────────────────────────────────────────────────────
   demo.css — Demo landing page styles
   ───────────────────────────────────────────────────────────────────────────── */

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

:root {
  --primary:         #076476;
  --primary-dark:    #054e5c;
  --primary-deep:    #004b59;
  --text-heading:    #1a1c1c;
  --text-body:       #3f484b;
  --text-secondary:  #555f6f;
  --text-muted:      #6f797c;
  --text-light:      #94a3b8;
  --white:           #ffffff;
  --bg-section:      #f5f7f8;
  --bg-card:         #f3f3f4;
  --accent-light:    #97def3;
  --border-input:    #bfc8cc;
  --border-card:     rgba(191, 200, 204, 0.25);
  --border-nav:      #f3f4f6;
  --error:           #dc2626;
  --error-bg:        #fef2f2;
  --error-border:    #fecaca;
  --success-text:    #065f46;
  --success-bg:      #ecfdf5;
  --success-border:  #a7f3d0;
  --font-display:    'Manrope', sans-serif;
  --font-body:       'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text-body);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ─── UTILITIES ──────────────────────────────────────────────────────────── */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.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;
}

/* ─── HEADER ─────────────────────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-bottom: 1px solid var(--border-nav);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img {
  height: 36px;
  display: block;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s;
}

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

.nav-link--active {
  color: var(--primary) !important;
  font-weight: 600 !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-heading);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  list-style: none;
  flex-direction: column;
  padding: 8px 32px 16px;
  border-bottom: 1px solid var(--border-nav);
  background: var(--white);
}

.nav-mobile.open { display: flex; }

.nav-mobile a {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 10px 0;
  display: block;
  border-bottom: 1px solid var(--border-nav);
}

.nav-mobile li:last-child a { border-bottom: none; }
.nav-mobile a:hover { color: var(--primary); }
.nav-mobile a[aria-current="page"] { color: var(--primary); font-weight: 600; }

/* ─── HERO ───────────────────────────────────────────────────────────────── */

.demo-hero {
  background: var(--primary-deep);
  padding: 96px 0 88px;
  text-align: center;
}

.demo-hero-content {
  max-width: 680px;
  margin: 0 auto;
}

.demo-hero-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 20px;
}

.demo-hero-heading {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.demo-hero-sub {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.btn-hero-cta {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-deep);
  background: var(--white);
  padding: 14px 36px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
}

.btn-hero-cta:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

/* ─── VALUE PROPS ─────────────────────────────────────────────────────────── */

.value-props {
  padding: 72px 0;
  background: var(--bg-section);
}

.section-eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  text-align: center;
  margin-bottom: 40px;
}

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

.value-card {
  background: var(--white);
  border: 1px solid var(--border-card);
  border-radius: 14px;
  padding: 36px 32px;
}

.value-card-icon {
  width: 48px;
  height: 48px;
  background: rgba(7, 100, 118, 0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 20px;
}

.value-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 10px;
}

.value-card-body {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ─── DEMO PREVIEW (WHAT YOU'LL SEE) ─────────────────────────────────────── */

.demo-preview {
  padding: 80px 0;
  background: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-subtext {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.65;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.preview-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.preview-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--border-input);
  line-height: 1;
  flex-shrink: 0;
  min-width: 44px;
}

.preview-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.preview-body {
  font-size: 0.91rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ─── WHO THIS IS FOR ─────────────────────────────────────────────────────── */

.who-for {
  padding: 80px 0;
  background: var(--bg-section);
}

.who-for-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.who-card {
  background: var(--white);
  border: 1px solid var(--border-card);
  border-radius: 14px;
  padding: 28px 24px;
}

.who-card-icon {
  width: 44px;
  height: 44px;
  background: rgba(7, 100, 118, 0.07);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 16px;
}

.who-card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.who-card-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ─── SOCIAL PROOF ────────────────────────────────────────────────────────── */

.social-proof {
  padding: 80px 0;
  background: var(--white);
}

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

.testimonial {
  background: var(--bg-section);
  border: 1px solid var(--border-card);
  border-radius: 14px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-quote {
  font-size: 0.93rem;
  color: var(--text-body);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 24px;
}

.testimonial-quote::before { content: '\201C'; }
.testimonial-quote::after  { content: '\201D'; }

.testimonial-name {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-heading);
}

.testimonial-role {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ─── DEMO FORM SECTION ───────────────────────────────────────────────────── */

.demo-form-section {
  background: var(--primary-deep);
  padding: 80px 0 96px;
}

.demo-form-card {
  background: var(--white);
  border-radius: 20px;
  padding: 56px 64px;
  max-width: 680px;
  margin: 0 auto;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.18);
}

.demo-form-card-header {
  margin-bottom: 36px;
}

.demo-form-card-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  line-height: 1.2;
}

.demo-form-card-sub {
  font-size: 0.97rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}

.demo-form-card-instruction {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ─── FORM ELEMENTS ───────────────────────────────────────────────────────── */

.demo-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-required-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-group--full {
  grid-column: 1 / -1;
}

.field-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-heading);
}

.field-required {
  color: var(--error);
  margin-left: 2px;
}

.field-optional {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.8em;
  margin-left: 4px;
}

.field-input,
.field-select,
.field-textarea {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--text-heading);
  background: var(--white);
  border: 1.5px solid var(--border-input);
  border-radius: 8px;
  padding: 10px 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
}

.field-input::placeholder,
.field-textarea::placeholder {
  color: var(--text-light);
}

.field-input:focus,
.field-select:focus,
.field-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(7, 100, 118, 0.12);
}

.field-input[aria-invalid="true"],
.field-select[aria-invalid="true"],
.field-textarea[aria-invalid="true"] {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.08);
}

.field-textarea {
  min-height: 110px;
  resize: vertical;
  line-height: 1.6;
}

.field-select-wrap {
  position: relative;
}

.field-select-wrap::after {
  content: '';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--text-muted);
  pointer-events: none;
}

.field-select {
  cursor: pointer;
  padding-right: 36px;
}

.field-select option { color: var(--text-heading); }

.field-error {
  font-size: 0.8rem;
  color: var(--error);
  font-weight: 500;
  min-height: 1.2em;
}

/* ─── CHECKBOXES ─────────────────────────────────────────────────────────── */

.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text-body);
  user-select: none;
}

.checkbox-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-custom {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: 1.5px solid var(--border-input);
  border-radius: 4px;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, background 0.15s;
}

.checkbox-input:checked + .checkbox-custom {
  background: var(--primary);
  border-color: var(--primary);
}

.checkbox-input:checked + .checkbox-custom::after {
  content: '';
  display: block;
  width: 5px;
  height: 9px;
  border: 2px solid var(--white);
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translateY(-1px);
}

.checkbox-input:focus-visible + .checkbox-custom {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.checkbox-label:hover .checkbox-custom {
  border-color: var(--primary);
}

/* ─── FORM STATUS ─────────────────────────────────────────────────────────── */

.form-status {
  font-size: 0.9rem;
  padding: 14px 16px;
  border-radius: 8px;
  line-height: 1.5;
}

.form-status--success {
  background: var(--success-bg);
  color: var(--success-text);
  border: 1px solid var(--success-border);
}

.form-status--error {
  background: var(--error-bg);
  color: var(--error);
  border: 1px solid var(--error-border);
}

/* ─── SUBMIT BUTTON ───────────────────────────────────────────────────────── */

.btn-submit {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  background: var(--primary);
  border: none;
  border-radius: 8px;
  padding: 14px 24px;
  width: 100%;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  margin-top: 4px;
}

.btn-submit:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* ─── FOOTER ─────────────────────────────────────────────────────────────── */

.site-footer {
  background: var(--primary-deep);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 32px;
}

.footer-inner { display: flex; flex-direction: column; gap: 48px; }

.footer-top {
  display: flex;
  gap: 80px;
  align-items: flex-start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex-shrink: 0;
}

.footer-logo img {
  height: 36px;
  filter: brightness(0) invert(1);
  display: block;
}

.btn-primary {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-deep);
  background: var(--white);
  padding: 10px 20px;
  border-radius: 7px;
  text-decoration: none;
  text-align: center;
  transition: background 0.15s;
  width: fit-content;
}

.btn-primary:hover { background: var(--accent-light); }

.footer-links {
  display: flex;
  gap: 64px;
  flex: 1;
}

.footer-col { display: flex; flex-direction: column; gap: 12px; }

.footer-col-title {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 4px;
}

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

.footer-col a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-legal a:hover { color: var(--white); }

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .who-for-grid { grid-template-columns: repeat(2, 1fr); }
  .demo-form-card { padding: 48px 48px; }
}

@media (max-width: 900px) {
  .value-props-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .preview-grid { grid-template-columns: 1fr; gap: 24px; }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .footer-top { flex-direction: column; gap: 40px; }
  .footer-links { flex-wrap: wrap; gap: 40px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .demo-hero { padding: 64px 0 60px; }
  .demo-hero-heading { font-size: 2rem; }
  .demo-hero-sub { font-size: 1rem; }

  .value-props { padding: 56px 0; }
  .demo-preview { padding: 56px 0; }
  .who-for { padding: 56px 0; }
  .social-proof { padding: 56px 0; }
  .demo-form-section { padding: 56px 0 72px; }

  .demo-form-card { padding: 36px 28px; border-radius: 16px; }
  .demo-form-card-title { font-size: 1.45rem; }
}

@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .checkbox-grid { grid-template-columns: 1fr; }
  .who-for-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .demo-form-card { padding: 28px 20px; border-radius: 12px; }
  .demo-hero-heading { font-size: 1.75rem; }
  .section-heading { font-size: 1.5rem; }
}