/* RESET */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  color: #181818;
  background: #ffffff;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: none;
  background: none;
  cursor: pointer;
}

img {
  max-width: 100%;
  display: block;
}

/* VARIABLES */

:root {
  --white: #ffffff;
  --black: #151515;
  --text: #242424;
  --muted: #707070;
  --yellow: #ffc400;
  --yellow-light: #fff8d9;
  --orange: #ff8a00;
  --orange-dark: #e66f00;
  --border: #eeeeee;
  --light: #fafafa;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  --container: 1180px;
}

/*  GLOBAL */
.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.section {
  padding: 110px 0;
}

.section-light {
  background: #fafafa;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 60px;
}

.section-heading.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--orange);
}

.section-label::before {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--yellow);
  border-radius: 20px;
}

.section-label.light {
  color: var(--yellow);
}

.section-heading h2 {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 22px;
}

.section-heading h2 span {
  color: var(--orange);
}

.section-heading p {
  color: var(--muted);
  font-size: 16px;
  max-width: 650px;
}

/*  NAVBAR */

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.nav-wrapper {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
}

.logo > span:last-child > span {
  color: var(--orange);
}

.logo-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--yellow);
  color: var(--black);
  border-radius: 9px;
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  color: #555;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s ease;
}

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

.nav-button {
  padding: 11px 18px;
  background: var(--black);
  color: var(--white);
  border-radius: 9px;
  font-size: 13px;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    background 0.2s ease;
}

.nav-button:hover {
  transform: translateY(-2px);
  background: var(--orange);
}

/*  HERO */

.hero {
  position: relative;
  overflow: hidden;
  padding: 120px 0 100px;
  background:
    radial-gradient(
      circle at 85% 20%,
      rgba(255, 196, 0, 0.16),
      transparent 30%
    ),
    linear-gradient(180deg, #ffffff 0%, #fffdf5 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 70px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  background: var(--yellow-light);
  border: 1px solid #ffe78a;
  border-radius: 50px;
  color: #8a6500;
  font-size: 12px;
  font-weight: 700;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
}

.hero h1 {
  max-width: 760px;
  margin: 25px 0;
  font-size: clamp(48px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: -4px;
}

.hero h1 span {
  display: block;
  color: var(--orange);
}

.hero-description {
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 35px;
}

.btn {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 21px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 800;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
  box-shadow: 0 12px 30px rgba(255, 138, 0, 0.22);
}

.btn-primary:hover {
  background: var(--orange-dark);
  box-shadow: 0 16px 35px rgba(255, 138, 0, 0.28);
}

.btn-secondary {
  background: var(--white);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--yellow);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 35px;
  margin-top: 50px;
}

.hero-meta div {
  display: flex;
  flex-direction: column;
}

.hero-meta strong {
  font-size: 17px;
}

.hero-meta span {
  color: var(--muted);
  font-size: 12px;
}

/*  HERO TERMINAL */

.hero-card {
  overflow: hidden;
  border: 1px solid #252525;
  border-radius: 18px;
  background: #171717;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.18);
  transform: rotate(1deg);
  transition: transform 0.3s ease;
}

.hero-card:hover {
  transform: rotate(0deg) translateY(-5px);
}

.window-bar {
  height: 48px;
  display: flex;
  align-items: center;
  padding: 0 17px;
  background: #222;
  border-bottom: 1px solid #303030;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #777;
}

.window-title {
  margin: auto;
  color: #999;
  font-size: 11px;
}

.terminal {
  padding: 28px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.terminal-line {
  margin-bottom: 12px;
  color: #ddd;
}

.terminal-line.muted {
  color: #777;
}

.terminal-line.success {
  color: #8be28b;
}

.signal-box {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid #343434;
  border-radius: 12px;
  background: #202020;
}

.signal-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 18px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.buy {
  color: #65e37b;
}

.signal-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-top: 1px solid #303030;
  color: #888;
}

.signal-row strong {
  color: #eee;
}

/*  TRUST */

.trust-section {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.trust-item {
  min-height: 110px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px;
  border-right: 1px solid var(--border);
}

.trust-item:first-child {
  border-left: 1px solid var(--border);
}

.trust-item strong {
  color: var(--orange);
  font-size: 12px;
  letter-spacing: 1px;
}

.trust-item span {
  margin-top: 5px;
  font-size: 13px;
  font-weight: 700;
}

/*  FEATURES */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.feature-card {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: #ffe17b;
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 45px;
  height: 45px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 12px;
  background: var(--yellow-light);
  font-size: 21px;
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 16px;
}

.feature-card p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

/*  STEPS */

.steps {
  max-width: 850px;
  margin: auto;
}

.step {
  display: grid;
  grid-template-columns: 70px 1fr;
  align-items: center;
  gap: 25px;
}

.step-number {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  background: var(--yellow);
  border-radius: 15px;
  font-size: 13px;
  font-weight: 900;
}

.step h3 {
  margin-bottom: 5px;
  font-size: 18px;
}

.step p {
  color: var(--muted);
  font-size: 14px;
}

.step-line {
  width: 2px;
  height: 35px;
  margin: 8px 0 8px 28px;
  background: #ffd75c;
}

/*  ARCHITECTURE */

.architecture {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}

.folder {
  overflow: hidden;
  border: 1px solid #262626;
  border-radius: 16px;
  background: #171717;
  box-shadow: var(--shadow);
}

.folder-header {
  padding: 18px 20px;
  border-bottom: 1px solid #2d2d2d;
  color: white;
  font-family: monospace;
  font-size: 14px;
}

.folder-body {
  padding: 25px;
  display: grid;
  gap: 15px;
  color: #ccc;
  font-family: monospace;
  font-size: 13px;
}

.folder-body div:nth-child(2),
.folder-body div:nth-child(3),
.folder-body div:nth-child(4),
.folder-body div:nth-child(5),
.folder-body div:nth-child(6) {
  color: var(--yellow);
}

.architecture-description {
  display: grid;
  gap: 14px;
}

.architecture-item {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: white;
}

.architecture-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
}

.architecture-item span {
  color: var(--muted);
  font-size: 13px;
}

/*  INCLUDED */

.included-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  max-width: 900px;
  margin: auto;
}

.included-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 11px;
  font-size: 14px;
  font-weight: 600;
}

.included-check {
  width: 25px;
  height: 25px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--yellow);
  font-size: 12px;
  font-weight: 900;
}

/*  USE CASES */

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.use-case {
  padding: 30px;
  border-right: 1px solid var(--border);
}

.use-case:first-child {
  border-left: 1px solid var(--border);
}

.use-case > span {
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
}

.use-case h3 {
  margin: 15px 0 8px;
  font-size: 17px;
}

.use-case p {
  color: var(--muted);
  font-size: 13px;
}

/* REQUIREMENTS */

.section-dark {
  background: #171717;
  color: white;
}

.requirements-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 90px;
  align-items: center;
}

.requirements-grid h2 {
  max-width: 600px;
  margin-bottom: 20px;
  font-size: clamp(34px, 5vw, 55px);
  line-height: 1.1;
  letter-spacing: -2px;
}

.requirements-grid h2 span {
  color: var(--yellow);
}

.requirements-grid p {
  max-width: 600px;
  color: #aaa;
  font-size: 15px;
}

.requirements-list {
  display: grid;
  gap: 10px;
}

.requirements-list div {
  padding: 17px 20px;
  border: 1px solid #303030;
  border-radius: 10px;
  background: #202020;
  color: #ddd;
  font-size: 14px;
}

.requirements-list span {
  margin-right: 8px;
  color: var(--yellow);
}

/*  NOTICE */

.notice-section {
  padding: 40px 0;
  background: #fffaf0;
}

.notice {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 25px;
  border: 1px solid #ffe3a3;
  border-radius: 14px;
  background: white;
}

.notice-icon {
  width: 35px;
  height: 35px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--yellow);
  font-weight: 900;
}

.notice h3 {
  margin-bottom: 7px;
}

.notice p {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 7px;
}

/*  FAQ */

.faq-container {
  max-width: 850px;
}

.faq-list {
  border-top: 1px solid var(--border);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 23px 5px;
  text-align: left;
  font-size: 15px;
  font-weight: 700;
}

.faq-icon {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--yellow-light);
  color: var(--orange);
  font-size: 18px;
  transition: transform 0.25s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

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

.faq-answer p {
  overflow: hidden;
  color: var(--muted);
  font-size: 14px;
  padding: 0 5px;
}

.faq-item.active .faq-answer p {
  padding-bottom: 22px;
}

/*  PURCHASE */

.purchase-section {
  padding: 100px 0;
  background:
    radial-gradient(
      circle at 10% 50%,
      rgba(255, 196, 0, 0.25),
      transparent 25%
    ),
    linear-gradient(135deg, #fffdf5, #fff);
}

.purchase-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 50px;
  padding: 55px;
  border: 1px solid #ffe09a;
  border-radius: 25px;
  background: white;
  box-shadow: var(--shadow);
}

.purchase-content h2 {
  max-width: 700px;
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 55px);
  line-height: 1.1;
  letter-spacing: -2px;
}

.purchase-content h2 span {
  color: var(--orange);
}

.purchase-content p {
  max-width: 650px;
  color: var(--muted);
  font-size: 15px;
}

.purchase-action {
  min-width: 210px;
  text-align: center;
}

.price {
  display: flex;
  flex-direction: column;
  margin-bottom: 18px;
}

.price span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.price strong {
  font-size: 38px;
}

.btn-large {
  width: 100%;
}

.purchase-action small {
  display: block;
  margin-top: 12px;
  color: #888;
  font-size: 10px;
}

/*  FOOTER */

.footer {
  padding: 60px 0 25px;
  background: #111;
  color: white;
}

.footer-wrapper {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 40px;
  border-bottom: 1px solid #292929;
}

.footer .logo {
  color: white;
}

.footer p {
  margin-top: 15px;
  color: #777;
  font-size: 12px;
}

.footer-links {
  display: flex;
  align-items: flex-start;
  gap: 25px;
}

.footer-links a {
  color: #aaa;
  font-size: 12px;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--yellow);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 22px;
  color: #666;
  font-size: 11px;
}

/*  RESPONSIVE */

@media (max-width: 1050px) {
  .nav-links {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-card {
    max-width: 700px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .use-case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .architecture {
    grid-template-columns: 1fr;
  }

  .requirements-grid {
    grid-template-columns: 1fr;
  }

  .purchase-card {
    grid-template-columns: 1fr;
  }

  .purchase-action {
    max-width: 300px;
  }
}

@media (max-width: 700px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .section {
    padding: 75px 0;
  }

  .nav-wrapper {
    height: 68px;
  }

  .nav-button {
    padding: 9px 12px;
    font-size: 11px;
  }

  .hero {
    padding: 80px 0 70px;
  }

  .hero h1 {
    font-size: 48px;
    letter-spacing: -3px;
  }

  .hero-description {
    font-size: 15px;
  }

  .hero-meta {
    gap: 20px;
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-item:nth-child(3) {
    border-left: 1px solid var(--border);
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .included-grid {
    grid-template-columns: 1fr;
  }

  .use-case-grid {
    grid-template-columns: 1fr;
  }

  .use-case {
    border-left: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .purchase-card {
    padding: 30px 22px;
  }

  .footer-wrapper {
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }

  .terminal {
    padding: 18px;

    font-size: 10px;
  }

  .step {
    grid-template-columns: 55px 1fr;
    gap: 15px;
  }

  .step-number {
    width: 48px;
    height: 48px;
  }
}