/* WestFax developer portal — tokens from Branding/design.md */

:root {
  --wf-red: #B4232D;
  --ink: #222222;
  --black: #000000;
  --white: #FFFFFF;
  --brand-blue: #2D62FF;
  --blue-light: #D9E5FF;
  --blue-dark: #080331;
  --glow-blue: #0077FF;
  --neutral-darkest: #111111;
  --neutral-dark: #444444;
  --neutral: #666666;
  --neutral-light: #AAAAAA;
  --neutral-lighter: #CCCCCC;
  --neutral-lightest: #EEEEEE;
  --line: #ECECEC;
  --success-bg: #CEF5CA;
  --success-fg: #114E0B;
  --warning-bg: #FCF8D8;
  --warning-fg: #5E5515;
  --error-bg: #F8E4E4;
  --error-fg: #3B0B0B;
  --header-font: 'Inter', sans-serif;
  --body-font: 'Aptos', 'Calibri', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --radius-sm: 0.25rem;
  --radius-card: 0.3125rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--body-font);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
  background:
    radial-gradient(120% 80% at 90% -20%, rgba(0, 119, 255, 0.10) 0%, transparent 55%),
    radial-gradient(80% 60% at 0% 0%, rgba(45, 98, 255, 0.06) 0%, transparent 50%),
    var(--white);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6,
.wf-eyebrow {
  font-family: var(--header-font);
  color: var(--ink);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 700; line-height: 1.15; }
h2 { font-size: 1.75rem; font-weight: 700; line-height: 1.2; }
h3 { font-size: 1.25rem; font-weight: 700; line-height: 1.3; }

a { color: var(--brand-blue); }
a:hover { color: var(--wf-red); }

/* ---- Nav ---- */
.wf-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 0.125rem 2rem rgba(0, 119, 255, 0.05);
  padding: 0.65rem 0 0;
}

.wf-nav-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding-bottom: 0.5rem;
}

.wf-nav .navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
  margin-right: auto;
}

.wf-nav .navbar-brand img {
  height: 36px;
  width: auto;
  display: block;
}

.wf-nav .brand-tag {
  font-family: var(--header-font);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--wf-red);
  padding: 0.2rem 0.45rem;
  border: 1px solid rgba(180, 35, 45, 0.25);
  border-radius: var(--radius-sm);
  line-height: 1;
}

.wf-nav-collapse {
  display: none;
  width: 100%;
  flex-direction: column;
  align-items: stretch;
  gap: 0.5rem;
  padding-top: 0.5rem;
}

.wf-nav-collapse.show {
  display: flex;
}

.wf-nav-primary,
.wf-nav-auth,
.wf-nav-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.15rem;
}

.wf-nav-primary {
  justify-content: flex-end;
}

.wf-nav-auth {
  justify-content: flex-end;
  margin-left: auto;
}

.wf-nav-tools {
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding: 0.35rem 0 0.55rem;
  gap: 0.75rem;
}

.wf-nav-tools-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.15rem;
}

.wf-mode-toggle {
  display: inline-flex;
  align-items: center;
  margin: 0;
  margin-left: auto;
}

.wf-mode-toggle .toggle,
.wf-mode-toggle .btn {
  font-family: var(--header-font);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.wf-mode-toggle .toggle-off,
.wf-mode-toggle .btn-dark {
  background-color: var(--ink) !important;
  border-color: var(--ink) !important;
}

.wf-nav .nav-link {
  font-family: var(--header-font);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--neutral-dark);
  padding: 0.45rem 0.75rem !important;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
}

.wf-nav .nav-link i {
  font-size: 0.85rem;
  opacity: 0.85;
  width: 1rem;
  text-align: center;
}

.wf-nav .nav-link .nav-ext {
  font-size: 0.65rem;
  opacity: 0.6;
  width: auto;
}

.wf-nav .nav-link:hover {
  color: var(--ink);
  background: rgba(45, 98, 255, 0.06);
}

.wf-nav .nav-link.active {
  color: var(--wf-red);
  background: rgba(180, 35, 45, 0.06);
}

.wf-nav .navbar-toggler {
  border: 1px solid var(--neutral-lighter);
  padding: 0.4rem 0.55rem;
  background: transparent;
  border-radius: var(--radius-sm);
  margin-left: auto;
}

.wf-nav .navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(45, 98, 255, 0.25);
}

@media (min-width: 992px) {
  .wf-nav-top {
    flex-wrap: nowrap;
    padding-bottom: 0.35rem;
  }

  .wf-nav-collapse {
    display: flex !important;
    flex-direction: row;
    align-items: center;
    width: auto;
    flex: 1;
    gap: 0.75rem;
    padding-top: 0;
    min-width: 0;
  }

  .wf-nav-primary {
    margin-left: auto;
  }

  .wf-nav-auth {
    margin-left: 0.5rem;
    flex-shrink: 0;
  }

  .wf-nav-collapse > .wf-nav-auth:first-child {
    margin-left: auto;
  }

  .wf-nav .navbar-toggler {
    display: none;
  }
}

/* ---- Buttons ---- */
.btn-wf {
  background: var(--wf-red);
  color: #fff !important;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--header-font);
  font-weight: 600;
  text-align: center;
}

.btn-wf:hover,
.btn-wf:focus {
  background: #9a1e26;
  color: #fff !important;
}

.btn-wf-secondary {
  background: transparent;
  color: var(--ink) !important;
  border: 1px solid var(--ink);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--header-font);
  font-weight: 600;
}

.btn-wf-secondary:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--ink) !important;
}

.btn-wf-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

.btn-wf-ghost {
  background: transparent;
  color: var(--neutral-dark) !important;
  border: 1px solid var(--neutral-lighter);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--header-font);
  font-weight: 600;
}

.btn-wf-ghost.btn-wf-sm,
.btn-wf-secondary.btn-wf-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

.btn-wf-ghost:hover {
  border-color: var(--brand-blue);
  color: var(--brand-blue) !important;
}

.wf-fax-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.wf-fax-toolbar-left,
.wf-fax-toolbar-right {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.5rem;
}

.wf-fax-toolbar .form-select,
.wf-fax-toolbar .btn {
  height: 2.25rem;
  min-height: 2.25rem;
  box-sizing: border-box;
}

.wf-fax-toolbar .form-select {
  padding-top: 0.35rem;
  padding-bottom: 0.35rem;
  font-size: 0.875rem;
}

.btn-wf-dark {
  background: #1a1a1a;
  color: #fff !important;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--header-font);
  font-weight: 600;
  text-align: center;
}

.btn-wf-dark:hover,
.btn-wf-dark:focus {
  background: #000;
  color: #fff !important;
}

/* ---- Layout ---- */
.wf-main {
  flex: 1;
  padding: 2rem 0 3rem;
}

.wf-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--wf-red);
  margin-bottom: 0.5rem;
}

.wf-lead {
  font-size: 1.125rem;
  color: var(--neutral);
  max-width: 36rem;
}

.wf-card {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: 0 0.125rem 1.5rem rgba(0, 119, 255, 0.04);
}

.wf-card .card-body {
  padding: 1.25rem 1.35rem;
}

.wf-icon-well {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 100rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-light);
  color: var(--brand-blue);
  margin-bottom: 0.75rem;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875rem;
}

.wf-icon-btn {
  display: inline;
  appearance: none;
  margin: 0 0 0 0.35rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--neutral);
  font-size: 0.85rem;
  line-height: 1;
  vertical-align: middle;
  cursor: pointer;
}

.wf-icon-btn:hover {
  color: var(--ink);
}

.wf-copy-id {
  display: inline;
  max-width: 9.5rem;
  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.65rem;
  line-height: 1.35;
  color: var(--neutral-dark);
  text-align: left;
  word-break: break-all;
  cursor: pointer;
}

.wf-copy-id:hover {
  color: var(--brand-blue);
  text-decoration: underline;
}

.wf-copy-id.is-copied {
  color: var(--success-fg, #114E0B);
  text-decoration: none;
}

.wf-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0;
  font-size: 0.875rem;
  color: var(--neutral);
  background: rgba(255, 255, 255, 0.6);
}

/* ---- Code / curl blocks ---- */
.wf-step {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.wf-step:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.wf-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 100rem;
  background: var(--ink);
  color: #fff;
  font-family: var(--header-font);
  font-size: 0.8rem;
  font-weight: 700;
  margin-right: 0.5rem;
}

.wf-code {
  position: relative;
  background: var(--blue-dark);
  color: #e8eefc;
  border-radius: var(--radius-card);
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.55;
  margin: 0.75rem 0 0;
}

.wf-code .copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.55rem;
  font-size: 0.7rem;
  font-family: var(--header-font);
  cursor: pointer;
}

.wf-code .copy-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.wf-code pre {
  margin: 0;
  white-space: pre;
  color: inherit;
  font: inherit;
}

.wf-toc a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--neutral-dark);
  text-decoration: none;
  font-family: var(--header-font);
  font-size: 0.875rem;
  font-weight: 500;
}

.wf-toc a:hover,
.wf-toc a:focus {
  background: rgba(45, 98, 255, 0.06);
  color: var(--ink);
}

.wf-toc i {
  color: var(--brand-blue);
  width: 1rem;
  text-align: center;
}

/* ---- Quickstart send tabs ---- */
.wf-tabs {
  border-bottom: 1px solid var(--line);
  gap: 0.15rem;
  flex-wrap: wrap;
}

.wf-tabs .nav-link {
  font-family: var(--header-font);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--neutral-dark);
  border: 1px solid transparent;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  padding: 0.55rem 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.wf-tabs .nav-link .mono {
  font-size: 0.75rem;
  color: var(--brand-blue);
}

.wf-tabs .nav-link:hover {
  border-color: var(--line);
  color: var(--ink);
}

.wf-tabs .nav-link.active {
  color: var(--wf-red);
  background: #fff;
  border-color: var(--line) var(--line) #fff;
}

.wf-tabs .nav-link.active .mono {
  color: var(--wf-red);
}

.wf-tab-content {
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  padding: 0 1rem 1rem;
  background: rgba(255, 255, 255, 0.6);
}

/* ---- Quickstart sample response expanders ---- */
.wf-samples-label {
  font-family: var(--header-font);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--neutral-dark);
  margin: 0;
}

.wf-samples-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.wf-samples a.wf-sample-toggle,
.wf-samples a.wf-sample-toggle:link,
.wf-samples a.wf-sample-toggle:visited,
.wf-samples a.wf-sample-toggle:hover,
.wf-samples a.wf-sample-toggle:focus,
.wf-samples a.wf-sample-toggle:active,
.wf-samples a.wf-sample-toggle:not(.collapsed) {
  display: inline-block;
  color: var(--ink) !important;
  text-decoration: none !important;
  font-size: 0.95rem;
  line-height: 1.4;
  cursor: pointer;
}

.wf-sample-caret {
  display: inline-block;
  transition: transform 0.15s ease;
}

.wf-sample-toggle:not(.collapsed) .wf-sample-caret {
  transform: rotate(90deg);
}

.wf-code-sample {
  margin: 0.4rem 0 0.65rem;
  border-radius: var(--radius-sm);
}

.wf-code-sample pre {
  max-height: 22rem;
  overflow: auto;
}

/* Override Bootstrap alerts to brand status colors */
.alert-success { background: var(--success-bg); color: var(--success-fg); border-color: transparent; }
.alert-warning { background: var(--warning-bg); color: var(--warning-fg); border-color: transparent; }
.alert-danger { background: var(--error-bg); color: var(--error-fg); border-color: transparent; }
.alert-info { background: var(--blue-light); color: var(--blue-dark); border-color: transparent; }

.flash-slow { background: var(--warning-bg) !important; color: var(--warning-fg) !important; }

.form-control:focus,
.form-select:focus {
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 0.2rem rgba(45, 98, 255, 0.2);
}

.table > :not(caption) > * > * {
  border-bottom-color: var(--line);
}

@media (max-width: 991.98px) {
  .wf-nav .nav-sep { display: none; }
  .wf-nav .navbar-nav { gap: 0.15rem; padding: 0.5rem 0; }
}

/* ---- Articles ---- */
.wf-article-box {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 0.9rem 1rem;
  background: rgba(45, 98, 255, 0.04);
}

.wf-article {
  font-size: 1rem;
  line-height: 1.6;
}

.wf-article h1 {
  font-size: 1.75rem;
  margin-top: 0;
}

.wf-article h2 {
  font-size: 1.35rem;
  margin-top: 1.75rem;
}

.wf-article h3 {
  font-size: 1.1rem;
  margin-top: 1.25rem;
}

.wf-article pre {
  background: var(--blue-dark);
  color: #e8eefc;
  padding: 1rem;
  border-radius: var(--radius-card);
  overflow-x: auto;
  font-size: 0.8rem;
}

.wf-article code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.875em;
}

.wf-article :not(pre) > code {
  background: var(--neutral-lightest);
  padding: 0.1em 0.35em;
  border-radius: 0.2rem;
}

.wf-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.wf-article th,
.wf-article td {
  border: 1px solid var(--line);
  padding: 0.5rem 0.65rem;
  text-align: left;
}

.wf-article th {
  background: var(--neutral-lightest);
  font-family: var(--header-font);
  font-weight: 600;
}

.wf-article blockquote {
  border-left: 3px solid var(--wf-red);
  margin: 1rem 0;
  padding: 0.35rem 0 0.35rem 1rem;
  color: var(--neutral-dark);
}

/* ---- Marketing landing ---- */
body.wf-marketing {
  font-family: 'Inter', sans-serif;
  background: #f4f5f7;
}

.wf-main--marketing {
  padding: 0 0 3rem;
}

.wf-landing-hero {
  padding: 3rem 0 2.5rem;
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(180, 35, 45, 0.06) 0%, transparent 55%),
    linear-gradient(180deg, #f4f5f7 0%, #eef0f3 100%);
}

.wf-landing-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--neutral);
  margin-bottom: 1rem;
}

.wf-landing-eyebrow-bar {
  display: inline-block;
  width: 1.75rem;
  height: 2px;
  background: var(--wf-red);
  flex-shrink: 0;
}

.wf-landing-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 1.25rem;
}

.wf-landing-accent {
  color: var(--wf-red);
}

.wf-landing-lead {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--neutral);
  max-width: 34rem;
  margin-bottom: 1.75rem;
}

.wf-landing-free {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  color: var(--neutral);
}

.wf-landing-hero-media {
  width: 100%;
}

.wf-landing-hero-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
  background: #e8eaed;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.wf-landing-features {
  margin-top: -0.5rem;
  padding: 0 0 1rem;
}

.wf-landing-feature-bar {
  display: grid;
  grid-template-columns: 1fr;
  background: #fff;
  border-radius: 0.75rem;
  box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.06);
  overflow: hidden;
}

.wf-landing-feature {
  padding: 1.5rem 1.35rem;
  border-bottom: 1px solid var(--line);
}

.wf-landing-feature:last-child {
  border-bottom: 0;
}

.wf-landing-feature-icon {
  color: var(--wf-red);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.wf-landing-feature h2 {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}

.wf-landing-feature p {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--neutral);
  margin: 0;
}

@media (min-width: 768px) {
  .wf-landing-feature-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .wf-landing-feature {
    border-right: 1px solid var(--line);
  }

  .wf-landing-feature:nth-child(2n) {
    border-right: 0;
  }

  .wf-landing-feature:nth-child(n+3) {
    border-bottom: 0;
  }
}

@media (min-width: 992px) {
  .wf-landing-hero {
    padding: 4rem 0 3.5rem;
  }

  .wf-landing-feature-bar {
    grid-template-columns: repeat(4, 1fr);
  }

  .wf-landing-feature {
    border-bottom: 0;
    border-right: 1px solid var(--line);
    padding: 1.75rem 1.5rem;
  }

  .wf-landing-feature:last-child {
    border-right: 0;
  }
}

/* ---- Register ---- */
.wf-register {
  padding: 2.5rem 0 3.5rem;
}

.wf-register-title {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: 1rem;
}

.wf-register-lead {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--neutral);
  margin-bottom: 1.75rem;
  max-width: 32rem;
}

.wf-register-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.wf-register-bullets li {
  position: relative;
  padding-left: 1.5rem;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
}

.wf-register-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--wf-red);
}

.wf-register-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 1.5rem 1.5rem 1.75rem;
  box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.05);
}

@media (min-width: 992px) {
  .wf-register {
    padding: 3.5rem 0 4rem;
  }

  .wf-register-form {
    padding: 1.75rem 1.85rem 2rem;
  }
}