:root {
  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --color-bg: #ffffff;
  --color-canvas: #fafafa;
  --color-surface: #ffffff;
  --color-surface-subtle: #f4f4f5;
  --color-border: #09090b;
  --color-border-subtle: #e4e4e7;
  --color-text-main: #09090b;
  --color-text-muted: #52525b;
  --color-text-subtle: #71717a;
  --color-text-inverse: #ffffff;
  --color-accent: #09090b;
  --color-accent-hover: #27272a;
  --color-success: #16a34a;
  --color-danger: #dc2626;

  --shadow-brutal: 4px 4px 0px #09090b;
  --shadow-brutal-sm: 2px 2px 0px #09090b;
  --shadow-brutal-hover: 6px 6px 0px #09090b;
}

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

html {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  color: var(--color-text-main);
  background-color: var(--color-bg);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.55;
}

.skip-link {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 9999;
  padding: 0.5rem 1rem;
  background: #000;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.page-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* NAVBAR */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1020;
}

.site-navbar {
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.brand-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--color-text-main);
}

.brand-wrapper:hover {
  color: var(--color-text-main);
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-weight: 800;
  font-size: 0.95rem;
  font-family: var(--font-mono);
  border: 1px solid var(--color-border);
}

.brand-text {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
}

.nav-link {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-text-muted) !important;
  padding: 0.45rem 0.85rem !important;
  transition: color 0.15s ease, background-color 0.15s ease;
  border-radius: 3px;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-text-main) !important;
  background-color: var(--color-surface-subtle);
}

.nav-link.active {
  color: var(--color-text-main) !important;
  font-weight: 700;
}

.nav-user {
  font-size: 0.88rem;
  color: var(--color-text-subtle);
  padding: 0.45rem 0.75rem;
  font-family: var(--font-mono);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  border-radius: 3px;
}

.nav-action-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.38rem 0.85rem;
  border-radius: 3px;
  color: var(--color-text-main);
  transition: all 0.15s ease;
}

.nav-action-btn:hover {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

/* TYPOGRAPHY */
.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.1;
  color: var(--color-text-main);
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.section-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 680px;
}

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-main);
  background: var(--color-surface-subtle);
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

.font-mono {
  font-family: var(--font-mono) !important;
}

/* CARDS & SURFACES */
.glass-card,
.stat-card,
.feature-card,
.step-card,
.usecase-card,
.faq-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  position: relative;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.glass-card {
  box-shadow: var(--shadow-brutal);
}

.stat-card {
  padding: 1.4rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-brutal);
}

.stat-label {
  color: var(--color-text-subtle);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: -0.03em;
  color: var(--color-text-main);
  line-height: 1.1;
  word-break: break-word;
}

.stat-note {
  margin-top: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* SHORTENER WIDGET */
.shortener-widget-container {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 4px;
  box-shadow: var(--shadow-brutal);
  padding: 2rem;
}

@media (min-width: 992px) {
  .shortener-widget-container {
    padding: 2.5rem;
  }
}

.input-addon-group {
  display: flex;
  align-items: stretch;
}

.input-addon-prefix {
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-right: none;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  border-top-left-radius: 3px;
  border-bottom-left-radius: 3px;
  white-space: nowrap;
}

.input-addon-group > .flex-grow-1 > .form-control,
.input-addon-group > .form-control {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.form-control,
.form-select {
  border: 1px solid var(--color-border);
  border-radius: 3px;
  background: #ffffff;
  color: var(--color-text-main);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--color-border);
  outline: 2px solid var(--color-border);
  outline-offset: 1px;
  box-shadow: none;
  background: #ffffff;
}

.form-label {
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 0.45rem;
  color: var(--color-text-main);
}

.form-text {
  color: var(--color-text-subtle);
  font-size: 0.83rem;
  margin-top: 0.35rem;
}

.invalid-feedback {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-danger);
  margin-top: 0.35rem;
}

/* BUTTONS */
.btn {
  font-weight: 700;
  border-radius: 3px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, color 0.15s ease;
  letter-spacing: -0.01em;
  padding: 0.65rem 1.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--color-accent);
  border: 1px solid var(--color-border);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-brutal-sm);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-accent-hover);
  border-color: var(--color-border);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
  box-shadow: var(--shadow-brutal);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline-secondary,
.btn-outline-primary {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  color: var(--color-text-main);
  box-shadow: var(--shadow-brutal-sm);
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus-visible,
.btn-outline-primary:hover,
.btn-outline-primary:focus-visible {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-border);
  color: var(--color-text-main);
  transform: translateY(-2px);
  box-shadow: var(--shadow-brutal);
}

.btn-outline-secondary:active,
.btn-outline-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.85rem;
}

/* SHORT LINK BOX */
.short-link-box {
  padding: 1.25rem;
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: 3px;
}

.short-link-display {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-main);
  word-break: break-all;
}

/* FEATURE CARDS */
.feature-card {
  padding: 1.75rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-brutal);
}

.feature-number {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  margin-bottom: 0.75rem;
  display: inline-block;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  letter-spacing: -0.02em;
}

.feature-text {
  color: var(--color-text-muted);
  font-size: 0.94rem;
  line-height: 1.55;
  margin-bottom: 0;
}

/* STEP WORKFLOW */
.step-card {
  padding: 2rem 1.5rem;
  height: 100%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-brutal-sm);
  position: relative;
}

.step-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-brutal);
}

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--color-accent);
  color: #ffffff;
  font-weight: 800;
  font-family: var(--font-mono);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  margin-bottom: 1.25rem;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  letter-spacing: -0.02em;
}

.step-text {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* USE CASE CARDS */
.usecase-card {
  padding: 1.75rem;
  height: 100%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-brutal-sm);
}

.usecase-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-brutal);
}

.usecase-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-subtle);
  margin-bottom: 0.5rem;
}

.usecase-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.usecase-text {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* FAQ ACCORDION */
.faq-details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  margin-bottom: 0.85rem;
  box-shadow: var(--shadow-brutal-sm);
  transition: all 0.15s ease;
}

.faq-details:hover {
  box-shadow: var(--shadow-brutal);
}

.faq-details[open] {
  background: #ffffff;
}

.faq-summary {
  list-style: none;
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.2rem;
  transition: transform 0.2s ease;
  line-height: 1;
}

.faq-details[open] .faq-icon {
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 1.5rem 1.35rem 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* CTA BANNER */
.cta-box {
  background: #09090b;
  color: #ffffff;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  padding: 3.5rem 2rem;
  box-shadow: var(--shadow-brutal);
}

.cta-box h2 {
  font-weight: 800;
  letter-spacing: -0.03em;
}

.cta-box p {
  color: #d4d4d8;
  max-width: 600px;
  font-size: 1.1rem;
}

.cta-box .btn-cta-primary {
  background: #ffffff;
  color: #09090b;
  border: 1px solid #ffffff;
  font-weight: 700;
}

.cta-box .btn-cta-primary:hover {
  background: #f4f4f5;
  color: #09090b;
  transform: translateY(-2px);
}

.cta-box .btn-cta-secondary {
  background: transparent;
  color: #ffffff;
  border: 1px solid #71717a;
  font-weight: 700;
}

.cta-box .btn-cta-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
  color: #ffffff;
  transform: translateY(-2px);
}

/* RECENT LIST & ITEMS */
.recent-list {
  display: grid;
  gap: 0.85rem;
}

.recent-item {
  padding: 1rem 1.25rem;
  border-radius: 3px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-brutal-sm);
  transition: transform 0.15s ease;
}

.recent-item:hover {
  transform: translateY(-1px);
}

.badge {
  font-family: var(--font-mono);
  font-weight: 600;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  padding: 0.35em 0.65em;
  font-size: 0.78rem;
}

.badge.text-bg-light {
  background-color: var(--color-surface-subtle) !important;
  color: var(--color-text-main) !important;
}

.badge.text-bg-success {
  background-color: #dcfce7 !important;
  color: #14532d !important;
  border-color: #16a34a;
}

.badge.text-bg-secondary {
  background-color: #f4f4f5 !important;
  color: #52525b !important;
  border-color: #a1a1aa;
}

/* FOOTER */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--color-border);
  padding-top: 3.5rem;
  padding-bottom: 2rem;
  margin-top: auto;
}

.footer-brand-desc {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-main);
  margin-bottom: 1.1rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--color-text-main);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 1.75rem;
  margin-top: 3rem;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  padding: 0.25rem 0.65rem;
  border-radius: 3px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: 50%;
  display: inline-block;
}

/* LIVE PREVIEW COMPARISON BOX */
.comparison-box {
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1.5rem;
}

.url-pill-before {
  background: #fee2e2;
  border: 1px solid #f87171;
  color: #991b1b;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.65rem 0.85rem;
  border-radius: 3px;
  word-break: break-all;
}

.url-pill-after {
  background: #dcfce7;
  border: 1px solid #4ade80;
  color: #166534;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.65rem 0.85rem;
  border-radius: 3px;
  word-break: break-all;
}

/* QR CODE STYLES */
.qr-container {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1.5rem;
  display: inline-block;
  box-shadow: var(--shadow-brutal-sm);
}

.qr-code-image {
  width: 100%;
  max-width: 220px;
  height: auto;
  border: 1px solid var(--color-border-subtle);
}

/* TOAST / FEEDBACK */
.copied-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #09090b;
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  z-index: 10000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid #27272a;
}

.copied-toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* RESPONSIVE */
@media (max-width: 767.98px) {
  .hero-title {
    font-size: 2.1rem;
  }
  .stat-value {
    font-size: 1.65rem;
  }
  .shortener-widget-container {
    padding: 1.25rem;
  }
  .cta-box {
    padding: 2.25rem 1.25rem;
  }
  .input-addon-group {
    flex-direction: column;
  }
  .input-addon-prefix {
    border-right: 1px solid var(--color-border);
    border-bottom: none;
    border-top-right-radius: 3px;
    border-bottom-left-radius: 0;
  }
  .input-addon-group > .flex-grow-1 > .form-control,
  .input-addon-group > .form-control {
    border-top-left-radius: 0;
    border-top-right-radius: 0;
    border-bottom-left-radius: 3px;
    border-bottom-right-radius: 3px;
  }
}