:root {
  --bg: #f4f3f2;
  --surface: #ffffff;
  --surface-soft: #f5faff;
  --ink: #0f1f33;
  --muted: #3c5874;
  --accent: #007bff;
  --accent-2: #007bff;
  --line: #c8dbf2;
  --hero-glow-a: #ffffff;
  --hero-glow-b: #ffffff;
  --header-bg: rgba(251, 253, 255, 0.95);
  --shadow: 0 16px 36px rgba(0, 123, 255, 0.16);
  --radius-lg: 24px;
  --radius-md: 14px;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  background-color: var(--bg);
}

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

body {
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  transition: background-color 220ms ease, color 220ms ease;
}

body:not(.night-mode) {
  --bg: #f4f3f2;
  --surface: #ffffff;
  --surface-soft: #f5faff;
  --ink: #0f1f33;
  --muted: #3c5874;
  --accent: #007bff;
  --accent-2: #007bff;
  --line: #c8dbf2;
  --hero-glow-a: #ffffff;
  --hero-glow-b: #ffffff;
  --header-bg: rgba(251, 253, 255, 0.95);
  --shadow: 0 16px 36px rgba(0, 123, 255, 0.16);
  background: #f4f3f2;
  color: #0f1f33;
  background-color: #f4f3f2 !important;
}

html:not(.night-mode) {
  background-color: #f4f3f2;
}

body.night-mode {
  --bg: #0a1020;
  --surface: #111a2e;
  --surface-soft: #16233d;
  --ink: #e7efff;
  --muted: #a8bddc;
  --accent: #007bff;
  --accent-2: #007bff;
  --line: #243658;
  --hero-glow-a: #0a1020;
  --hero-glow-b: #0a1020;
  --header-bg: rgba(10, 16, 32, 0.94);
  --shadow: 0 16px 32px rgba(0, 0, 0, 0.45);
  background-color: #0a1020;
}

html.night-mode {
  background-color: #0a1020;
}

#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0;
  z-index: 999;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.container {
  width: min(1240px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(10px);
  background: var(--header-bg);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 16%, transparent);
}

.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand-image {
  width: 96px;
  height: auto;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 0.95rem;
  opacity: 0.85;
  transition: opacity 180ms ease;
}

.nav-links a:hover {
  opacity: 1;
}

.quick-controls {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.control-btn {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.72rem;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  cursor: pointer;
  min-width: 66px;
}

.control-btn[aria-pressed="true"] {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.top-controls {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.toggle-control {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.35rem 0.55rem;
  min-width: 165px;
}

.control-title {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.66rem;
  color: var(--muted);
  font-weight: 800;
}

.toggle-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
}

.switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 21px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #bfc3ef;
  transition: 0.2s;
}

.slider::before {
  content: "";
  position: absolute;
  width: 15px;
  height: 15px;
  left: 3px;
  bottom: 3px;
  border-radius: 50%;
  background: #fff;
  transition: 0.2s;
}

.switch input:checked + .slider {
  background: var(--accent);
}

.switch input:checked + .slider::before {
  transform: translateX(19px);
}

.hero {
  padding: 5.8rem 0 3.8rem;
}

.hero-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(1.3rem, 2.8vw, 2.4rem);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 1.2rem;
  position: relative;
  overflow: hidden;
}

.hero-card::after {
  content: "";
  position: absolute;
  right: -66px;
  top: -66px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: conic-gradient(from 90deg, var(--accent), transparent, color-mix(in srgb, var(--accent-2) 45%, transparent));
  opacity: 0.33;
}

.eyebrow {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

h1 {
  font-family: "Fraunces", serif;
  font-size: clamp(2rem, 5.2vw, 3.2rem);
  line-height: 1.07;
  max-width: 16ch;
  margin-bottom: 0.9rem;
}

.hero p {
  color: var(--muted);
  max-width: 55ch;
  margin-bottom: 1.1rem;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1.15rem;
}

.btn {
  text-decoration: none;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  font-weight: 800;
  padding: 0.74rem 1.12rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(130deg, #007bff, #3b9dff);
  box-shadow: 0 10px 26px color-mix(in srgb, var(--accent) 30%, transparent);
}

.btn-secondary {
  color: var(--ink);
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
}

.stat-card {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.65rem;
}

.stat-card strong {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1;
}

.stat-card span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.hero-panel {
  border-radius: var(--radius-md);
  padding: 1.2rem;
  color: var(--ink);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, #cfe5ff, #b9d9ff);
  align-self: center;
}

body.night-mode .hero-panel {
  color: #f4f5ff;
  border: 0;
  background: linear-gradient(160deg, #007bff, #2f95ff);
}

.hero-panel h2 {
  margin-bottom: 0.55rem;
}

.hero-panel ul {
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.hero-panel li {
  position: relative;
  padding-left: 1rem;
}

.hero-panel li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  position: absolute;
  left: 0;
  top: 0.57rem;
}

section {
  padding: 1.2rem 0 3.8rem;
  scroll-margin-top: 110px;
}

.section-title {
  font-family: "Fraunces", serif;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  margin-bottom: 0.75rem;
}

.section-sub {
  color: var(--muted);
  margin-bottom: 1.2rem;
  max-width: 70ch;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.tab-btn {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.52rem 0.95rem;
  font-weight: 800;
  cursor: pointer;
}

.tab-btn.is-active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.card,
.tool-card,
.resource-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.resource-card {
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease;
  text-decoration: none;
  color: inherit;
  display: block;
}

.resource-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.card h3,
.tool-card h3,
.resource-card h3 {
  margin-bottom: 0.4rem;
}

.card p,
.tool-card p,
.resource-card p {
  color: var(--muted);
}

.solution-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0.8rem;
}

.range-wrap {
  display: grid;
  gap: 0.35rem;
  margin-top: 0.8rem;
}

.range-wrap span {
  font-weight: 700;
  font-size: 0.9rem;
}

.range-wrap input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.estimate-result {
  margin-top: 0.8rem;
  border-radius: 10px;
  padding: 0.7rem;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.timeline {
  margin-top: 0.8rem;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.65rem;
}

.timeline li {
  color: var(--muted);
  font-weight: 600;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.chip {
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  font-weight: 800;
  cursor: pointer;
}

.chip.is-active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.resource-card.is-hidden {
  display: none;
}

.reviews-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.9rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.85rem;
}

.reviews-note {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  color: var(--muted);
  background: var(--surface-soft);
}

.reviews-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.reviews-actions .btn {
  flex: 1 1 240px;
}

.featured-reviews {
  margin-top: 0.25rem;
}

.featured-reviews h3 {
  margin-bottom: 0.6rem;
}

.featured-reviews-carousel {
  width: 100%;
}

.review-carousel {
  display: grid;
  gap: 0.65rem;
}

.review-viewport {
  position: relative;
  min-height: 170px;
}

.review-slide {
  display: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  background: var(--surface-soft);
}

.review-slide.is-active {
  display: block;
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.55rem;
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex: 0 0 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  color: #fff;
}

.review-avatar-fallback {
  background: var(--avatar-bg);
}

.review-avatar-image {
  object-fit: cover;
  border: 1px solid var(--line);
}

.review-meta {
  flex: 1;
  display: grid;
  gap: 0.1rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.review-author {
  color: var(--ink);
  line-height: 1.2;
}

.review-stars {
  color: #f2c94c;
  letter-spacing: 0.02em;
}

.review-age {
  color: var(--muted);
  font-size: 0.8rem;
  white-space: nowrap;
}

.review-slide p {
  color: var(--ink);
  margin-bottom: 0.55rem;
}

.review-slide footer {
  text-align: left;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 0;
}

.review-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.review-nav {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  font-weight: 800;
  cursor: pointer;
}

.review-dots {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.review-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 0;
  background: color-mix(in srgb, var(--muted) 55%, transparent);
  cursor: pointer;
}

.review-dot.is-active {
  background: var(--accent);
}

.review-empty {
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 0.85rem;
}

@media (max-width: 980px) {
  .review-viewport {
    min-height: 200px;
  }
}

@media (max-width: 720px) {
  .review-viewport {
    min-height: 230px;
  }

  .review-controls {
    gap: 0.4rem;
  }

  .review-nav {
    padding: 0.38rem 0.68rem;
  }
}
.faq-list {
  display: grid;
  gap: 0.7rem;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}

.faq-question {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  font-weight: 800;
  padding: 0.9rem 1rem;
  cursor: pointer;
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 220ms ease;
}

.faq-answer p {
  overflow: hidden;
  color: var(--muted);
  padding: 0 1rem;
}

.faq-item.is-open .faq-answer {
  grid-template-rows: 1fr;
}

.faq-item.is-open .faq-answer p {
  padding-bottom: 0.9rem;
}

.contact {
  border-radius: var(--radius-lg);
  padding: clamp(1.3rem, 2.8vw, 2rem);
  background: linear-gradient(138deg, #cfe5ff, #b9d9ff);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.contact .section-title,
.contact p,
.contact span,
.contact strong,
.contact li {
  color: var(--ink);
}

body.night-mode .contact {
  background: linear-gradient(138deg, #007bff, #2f95ff);
  color: #f4f5ff;
  border: 0;
}

body.night-mode .contact .section-title,
body.night-mode .contact p,
body.night-mode .contact span,
body.night-mode .contact strong,
body.night-mode .contact li {
  color: #f4f5ff;
}

.lead-form {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 1rem 0;
}

.lead-form label {
  display: grid;
  gap: 0.25rem;
  font-size: 0.85rem;
  font-weight: 700;
}

.lead-form input,
.lead-form select {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0.58rem;
  background: #ffffff;
  color: var(--ink);
}

body.night-mode .lead-form input,
body.night-mode .lead-form select {
  border: 1px solid rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.13);
  color: #fff;
}

.lead-form option {
  color: #111;
}

.lead-form button {
  align-self: end;
}

.form-message {
  margin-top: 0.35rem;
  min-height: 1.2em;
  font-weight: 700;
}

.contact-grid {
  margin-top: 0.8rem;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
}

.contact-grid li {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem;
}

.contact-grid a {
  color: inherit;
  text-decoration: none;
  font-weight: 700;
}

body.night-mode .contact-grid li {
  background: rgba(255, 255, 255, 0.11);
  border: 1px solid rgba(255, 255, 255, 0.24);
}

footer {
  color: var(--muted);
  text-align: center;
  font-size: 0.9rem;
  padding: 2rem 0 2.4rem;
}

#back-to-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 220ms ease, transform 220ms ease;
}

#back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 560ms ease, transform 560ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 1500px) {
  .container {
    width: min(1420px, 90vw);
  }
}

@media (max-width: 980px) {
  .hero-card,
  .solution-grid,
  .resource-grid,
  .cards,
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .lead-form {
    grid-template-columns: 1fr 1fr;
  }

  .nav {
    align-items: center;
  }
}

@media (max-width: 860px) {
  .nav {
    min-height: 74px;
  }

  .brand-image {
    width: 86px;
  }

  .nav-right {
    position: relative;
    margin-left: auto;
    gap: 0.55rem;
    flex-wrap: nowrap;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 0.55rem);
    right: 0;
    min-width: 220px;
    padding: 0.6rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: flex-start;
    gap: 0.1rem;
    z-index: 40;
  }

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

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    width: 100%;
    padding: 0.45rem 0.35rem;
  }

  .quick-controls {
    gap: 0.35rem;
  }
}

@media (max-width: 720px) {
  .hero,
  section {
    padding-top: 1rem;
  }

  .hero-card,
  .solution-grid,
  .resource-grid,
  .cards,
  .contact-grid,
  .lead-form {
    grid-template-columns: 1fr;
  }

  .site-header {
    top: 0;
  }

  .quick-controls {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .btn,
  #back-to-top {
    transition: none;
    animation: none;
    transform: none;
  }
}