/* =====================
   HEADER
   ===================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background 0.3s, padding 0.3s;
}

.header--scrolled {
  background: var(--color-dark);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
  padding: 14px 0;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo img {
  height: 22px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav a {
  font: 500 14px/1 var(--font-body);
  color: var(--color-gray-300);
  transition: color 0.2s;
}

.header__nav a:hover {
  color: var(--color-white);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 14px;
}

@media (max-width: 768px) {
  .header__nav {
    gap: 16px;
  }
  .header__nav a:not(.btn) {
    display: none;
  }
}

/* =====================
   HERO
   ===================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(216, 29, 42, 0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(216, 29, 42, 0.08) 0%, transparent 50%);
  animation: gradient-shift 8s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes gradient-shift {
  0%   { opacity: 0.6; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.1); }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__sub {
  margin-top: 24px;
  font-size: 20px;
  color: var(--color-gray-300);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero__ctas {
  margin-top: 40px;
}

@media (max-width: 640px) {
  .hero__sub { font-size: 17px; }
  .hero__ctas { flex-direction: column; }
}

/* =====================
   PROBLEM
   ===================== */
.problem {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.problem__text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.problem__text p {
  color: var(--color-gray-700);
}

.problem__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.problem__visual svg {
  width: 100%;
  max-width: 400px;
}

@media (max-width: 768px) {
  .problem { grid-template-columns: 1fr; gap: 40px; }
}

/* =====================
   ECOSYSTEM
   ===================== */
.ecosystem__body {
  max-width: 780px;
  margin: 24px auto 0;
  color: var(--color-gray-300);
  font-size: 18px;
}

.ecosystem__diagram {
  margin: 56px auto 0;
  max-width: 700px;
}

.ecosystem__diagram svg {
  width: 100%;
}

.ecosystem__cards {
  margin-top: 56px;
  text-align: left;
}

.ecosystem__cards h3 {
  margin-bottom: 12px;
}

.ecosystem__cards p {
  color: var(--color-gray-300);
  font-size: 16px;
}

@media (max-width: 640px) {
  .ecosystem__diagram svg {
    max-width: 320px;
    margin: 0 auto;
  }
}

/* =====================
   PRODUCTS
   ===================== */
.product {
  max-width: 960px;
}

.product__sub {
  color: var(--color-gray-700);
  font-size: 20px;
  margin-top: 8px;
}

.product__features {
  margin-top: 40px;
}

.product__icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.product__feature h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.product__feature p {
  color: var(--color-gray-700);
  font-size: 16px;
}

.product__cta {
  margin-top: 32px;
}

.product__divider {
  border: none;
  border-top: 1px solid var(--color-gray-200);
  margin: 80px 0;
}

/* =====================
   STATS
   ===================== */
.stats {
  padding: 80px 0;
}

.stats__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stats__number {
  font: 700 48px/1 var(--font-display);
  letter-spacing: -2px;
  color: var(--color-white);
}

.stats__label {
  font: 400 14px/1.4 var(--font-body);
  color: var(--color-gray-300);
  text-transform: uppercase;
  letter-spacing: 1px;
}

@media (max-width: 640px) {
  .stats__number { font-size: 36px; }
}

/* =====================
   ROADMAP
   ===================== */
.roadmap__body {
  max-width: 640px;
  margin: 16px auto 0;
  color: var(--color-gray-700);
}

.roadmap__cards {
  margin-top: 48px;
  text-align: left;
}

.roadmap__icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  margin-bottom: 16px;
  opacity: 0.6;
}

.roadmap__card h3 {
  margin-bottom: 8px;
}

.roadmap__card p {
  color: var(--color-gray-700);
  font-size: 16px;
  margin-bottom: 16px;
}

.roadmap__status {
  font: 500 12px/1 var(--font-body);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-primary);
  opacity: 0.8;
}

/* =====================
   TEAM
   ===================== */
.team__card {
  max-width: 520px;
  margin: 48px auto 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.team__photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 8px;
  background: var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
}

.team__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team__photo-placeholder {
  font: 600 36px/1 var(--font-display);
  color: var(--color-gray-300);
}

.team__role {
  font: 500 16px/1 var(--font-body);
  color: var(--color-gray-700);
}

.team__bio {
  margin-top: 8px;
  color: var(--color-gray-700);
  font-size: 16px;
  text-align: center;
}

.team__linkedin {
  margin-top: 8px;
  color: var(--color-gray-700);
  transition: color 0.2s;
}

.team__linkedin:hover {
  color: var(--color-primary);
}

/* =====================
   CONTACT
   ===================== */
.contact__body {
  max-width: 560px;
  margin: 16px auto 0;
  color: var(--color-gray-300);
}

.contact__cta {
  margin-top: 32px;
}

.contact__links {
  margin-top: 32px;
  display: flex;
  justify-content: center;
  gap: 32px;
}

.contact__links a {
  color: var(--color-gray-300);
  font-size: 15px;
  transition: color 0.2s;
}

.contact__links a:hover {
  color: var(--color-white);
}

/* =====================
   FOOTER
   ===================== */
.footer {
  background: var(--color-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__copy {
  font-size: 14px;
  color: var(--color-gray-300);
}

.footer__links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer__links a {
  font-size: 14px;
  color: var(--color-gray-300);
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--color-white);
}

@media (max-width: 640px) {
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
  .contact__links { flex-direction: column; gap: 12px; }
}

.footer__logo {
  height: 16px;
  width: auto;
}

/* =====================
   TRANSITION (quote style)
   ===================== */
.transition-quote {
  font: 600 28px/1.3 var(--font-display);
  letter-spacing: -1px;
  color: var(--color-white);
  max-width: 700px;
  margin: 0 auto;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 640px) {
  .transition-quote {
    font-size: 22px;
  }
}