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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  color: #111;
  background: #fff;
  line-height: 1.6;
}

/* ── Layout ── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

.dark {
  background: #111;
  color: #fff;
}

section {
  padding: 96px 0;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #111;
}

.dark .logo { color: #fff; }

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: #444;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: #111; }

/* ── Mobile nav toggle ── */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #111;
  border-radius: 2px;
  transition: all 0.2s;
}

/* ── Contact success ── */
.contact-success {
  display: none;
  text-align: center;
  padding: 48px 32px;
  max-width: 400px;
  margin: 0 auto;
}
.contact-success .success-icon {
  width: 56px;
  height: 56px;
  background: rgba(0,0,0,0.06);
  color: #111;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  margin: 0 auto 20px;
}
.contact-success h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.contact-success p  { color: #666; font-size: 15px; }

/* ── Hero ── */
.hero {
  padding: 160px 0 96px;
  background: #fff;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.1;
  color: #111;
  max-width: 700px;
}

.hero-sub {
  margin-top: 20px;
  font-size: clamp(18px, 2.5vw, 24px);
  color: #777;
  font-weight: 400;
  max-width: 500px;
}

.hero-buttons {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: #111;
  color: #fff;
}

.btn-primary:hover {
  background: #333;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: #111;
  border: 1.5px solid #ddd;
}

.btn-ghost:hover {
  border-color: #111;
  transform: translateY(-1px);
}

/* ── Intro ── */
.intro {
  padding: 72px 0;
  background: #f5f5f5;
}

.intro-text {
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 600;
  color: #111;
  max-width: 680px;
  letter-spacing: -0.5px;
}

.intro-sub {
  margin-top: 16px;
  font-size: 17px;
  color: #777;
  max-width: 560px;
}

/* ── Pillars ── */
.pillars {
  background: #fff;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.pillar-card {
  padding: 40px 32px;
  border: 1px solid #eee;
  border-radius: 16px;
  background: #fff;
  transition: box-shadow 0.2s, transform 0.2s;
}

.pillar-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.pillar-icon {
  font-size: 32px;
  margin-bottom: 20px;
  color: #09f;
}

.pillar-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.pillar-card p {
  color: #666;
  font-size: 15px;
  line-height: 1.6;
}

/* ── Section headings ── */
h2 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 20px;
}

.section-sub {
  font-size: 17px;
  color: #999;
  max-width: 640px;
  margin-bottom: 24px;
}

.dark .section-sub { color: #aaa; }

.section-body {
  font-size: 22px;
  font-weight: 700;
  margin: 32px 0 12px;
}

/* ── Diagram ── */
.diagram-section {
  text-align: center;
}

.diagram-section h2 { color: #fff; }
.diagram-section .section-sub { margin: 0 auto 24px; text-align: center; }

.diagram {
  margin: 48px auto;
  max-width: 700px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 24px;
  overflow: visible;
}

.diagram-svg {
  width: 100%;
  height: auto;
}

.connector-line {
  stroke-dasharray: 6 4;
  animation: dash 2.5s linear infinite;
}

@keyframes dash {
  to { stroke-dashoffset: -20; }
}

.node rect { transition: filter 0.3s; }
.node:hover rect { filter: drop-shadow(0 0 6px #9966ff); }

.diagram-note {
  font-size: 14px;
  color: #aaa;
  max-width: 620px;
  margin: 0 auto 16px;
  text-align: center;
}

.founder-tag {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.founder-label {
  font-size: 13px;
  color: #888;
  letter-spacing: 0.5px;
}

.founder-name {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

/* ── Apps ── */
.how-it-works { background: #fff; }

.app-cards {
  margin: 48px 0;
}

.app-card {
  padding: 40px 24px;
  border: 1px solid #eee;
  border-radius: 16px;
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s;
}

.app-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.app-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.app-icon.spark { color: #09f; }
.app-icon.pulse { color: #9966ff; }
.app-icon.future { color: #00ccaa; }

.app-card h4 {
  font-size: 18px;
  font-weight: 700;
}

.how-cards { margin-top: 0; }

.how-card {
  padding: 40px 32px;
  background: #f5f5f5;
  border-radius: 16px;
}

.how-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.how-card p { color: #666; font-size: 15px; }

/* ── Technology ── */
.technology { text-align: left; }
.technology h2 { color: #fff; }
.technology .section-body { color: #09f; }

/* ── Vision ── */
.vision { background: #fff; text-align: center; }

.vision-text {
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 500;
  color: #444;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ── About ── */
.about p {
  font-size: 17px;
  color: #ccc;
  max-width: 620px;
  margin-bottom: 24px;
}

.about-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-list li {
  font-size: 15px;
  color: #aaa;
  padding-left: 20px;
  position: relative;
}

.about-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #09f;
}

/* ── Contact ── */
.contact { background: #f5f5f5; }

.contact h2 { text-align: center; margin-bottom: 48px; }

.contact-form {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 16px 20px;
  border: 1.5px solid #ddd;
  border-radius: 10px;
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  background: #fff;
  color: #111;
  transition: border-color 0.2s;
  outline: none;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: #09f;
}

.contact-form .btn {
  align-self: center;
  padding: 16px 40px;
}

/* ── Footer ── */
.footer {
  padding: 64px 0 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  flex-wrap: wrap;
  padding-bottom: 48px;
}

.footer-brand .logo { font-size: 22px; }

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

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h5 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #888;
  margin-bottom: 4px;
}

.footer-col a {
  text-decoration: none;
  color: #aaa;
  font-size: 14px;
  transition: color 0.2s;
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 32px;
  max-width: 1080px;
  margin: 0 auto;
}

.footer-bottom p {
  font-size: 13px;
  color: #666;
}

/* ── Join Page ── */

.join-hero {
  padding: 160px 0 96px;
  background: #fff;
}

.join-trust-line {
  font-size: 13px;
  font-weight: 500;
  color: #999;
  letter-spacing: 0.3px;
  margin-bottom: 24px;
}

.join-hero h1 {
  font-size: clamp(40px, 5.5vw, 72px);
  font-weight: 800;
  letter-spacing: -2.5px;
  line-height: 1.05;
  color: #111;
  max-width: 700px;
}

.join-body-text {
  font-size: 17px;
  color: #444;
  line-height: 1.7;
  max-width: 480px;
}

/* Platform diagram */
.platform-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding: 40px 32px;
  background: #f5f5f5;
  border-radius: 16px;
  border: 1px solid #eee;
}

.platform-node {
  width: 100%;
  padding: 18px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  letter-spacing: -0.3px;
}

.platform-node-top {
  background: #111;
  color: #fff;
  border: 1.5px solid #9966ff;
}

.platform-node-mid {
  background: #111;
  color: #fff;
  border: 1.5px solid #09f;
}

.platform-node-bot {
  background: #111;
  color: #fff;
  border: 1.5px solid #00ccaa;
}

.platform-arrow {
  font-size: 22px;
  color: #ccc;
  padding: 8px 0;
  line-height: 1;
}

/* Benefit cards */
.join-benefit-card {
  padding: 36px 32px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 16px;
  transition: border-color 0.2s;
}

.join-benefit-card:hover {
  border-color: rgba(255,255,255,0.18);
}

.join-benefit-icon {
  font-size: 28px;
  margin-bottom: 16px;
  color: #09f;
}

.join-benefit-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.join-benefit-card p {
  font-size: 15px;
  color: #aaa;
  line-height: 1.6;
}

/* Role buckets */
.role-bucket {
  padding: 40px 36px;
  border: 1px solid #eee;
  border-radius: 16px;
  background: #fff;
  transition: box-shadow 0.2s, transform 0.2s;
}

.role-bucket:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.role-bucket-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 16px;
}

.role-bucket-label.tech {
  background: rgba(0,153,255,0.10);
  color: #09f;
}

.role-bucket-label.creative {
  background: rgba(153,102,255,0.10);
  color: #9966ff;
}

.role-bucket h3 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 20px;
}

.role-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.role-list li {
  font-size: 15px;
  color: #555;
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}

.role-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #09f;
}

.role-note {
  margin-top: 40px;
  font-size: 16px;
  font-weight: 500;
  color: #555;
  border-left: 3px solid #09f;
  padding-left: 20px;
  line-height: 1.6;
}

/* Work on cards */
.work-card {
  padding: 32px 28px;
  border: 1px solid #e8e8e8;
  border-radius: 14px;
  background: #fff;
  transition: box-shadow 0.2s, transform 0.2s;
}

.work-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.07);
  transform: translateY(-2px);
}

.work-card-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.work-card p {
  font-size: 15px;
  color: #444;
  font-weight: 500;
  line-height: 1.5;
}

/* Fit items */
.fit-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 680px;
}

.fit-item {
  font-size: 17px;
  color: #ccc;
  display: flex;
  gap: 12px;
  line-height: 1.5;
}

.fit-check {
  color: #09f;
  flex-shrink: 0;
  font-weight: 700;
}

.selective-note {
  margin-top: 56px;
  font-size: 15px;
  color: #888;
  font-style: italic;
}

/* Application form */
.apply-section {
  background: #fff;
}

.apply-section h2 { margin-bottom: 12px; }

.apply-form {
  max-width: 720px;
  margin: 48px 0 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.apply-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.apply-form label {
  font-size: 13px;
  font-weight: 600;
  color: #333;
  letter-spacing: 0.2px;
}

.apply-form select {
  width: 100%;
  padding: 16px 20px;
  border: 1.5px solid #ddd;
  border-radius: 10px;
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  background: #fff;
  color: #111;
  transition: border-color 0.2s;
  outline: none;
  appearance: none;
  cursor: pointer;
}

.apply-form select:focus { border-color: #09f; }

.req { color: #09f; }
.opt { color: #aaa; font-weight: 400; }

.apply-submit-row {
  padding-top: 8px;
}

.apply-btn {
  font-size: 16px;
  padding: 16px 48px;
}

.apply-note {
  font-size: 13px;
  color: #999;
  margin-top: 8px;
  line-height: 1.6;
}

.apply-success {
  text-align: center;
  padding: 80px 40px;
  max-width: 480px;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: rgba(0,0,0,0.06);
  color: #111;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  margin: 0 auto 24px;
}

.apply-success h3 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 10px;
}

.apply-success p {
  font-size: 16px;
  color: #777;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 720px;
}

.faq-item {
  padding: 28px 0;
  border-bottom: 1px solid #e5e5e5;
}

.faq-item:first-child { border-top: 1px solid #e5e5e5; }

.faq-item h4 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.2px;
  margin-bottom: 8px;
}

.faq-item p {
  font-size: 15px;
  color: #666;
  line-height: 1.65;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-cols { gap: 32px; }
  .footer-inner { flex-direction: column; }
  .join-hero h1 { letter-spacing: -1.5px; }

  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.08);
    padding: 8px 32px 20px;
    z-index: 99;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; font-size: 15px; border-bottom: 1px solid rgba(0,0,0,0.05); }
  .nav-links a:last-child { border-bottom: none; }
}

@media (max-width: 480px) {
  .hero-buttons { flex-direction: column; }
  section { padding: 64px 0; }
}