@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400&family=Sora:wght@400;500;600&display=swap');

:root {
  --bg: #000000;
  --fg: #F5F5F0;
  --fg-dim: #8A8A85;
  --accent: #4F7358;
  --accent-dim: #2E4335;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Sora', sans-serif;
}

body {
  display: flex;
  flex-direction: column;
}

/* ---------- Top bar ---------- */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 3rem;
}

.logo {
  display: flex;
  align-items: center;
  color: var(--fg);
  line-height: 0;
}

.logo svg {
  width: 34px;
  height: 34px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav a {
  color: var(--fg-dim);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 400;
  transition: color 0.2s ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--fg);
}

.nav a.cta {
  color: var(--bg);
  background: var(--accent);
  padding: 0.55rem 1.3rem;
  border-radius: 100px;
  font-weight: 500;
  transition: background 0.2s ease, transform 0.2s ease;
}

.nav a.cta:hover,
.nav a.cta:focus-visible {
  background: #5E8768;
  transform: translateY(-1px);
}

/* ---------- Stage (central animation) ---------- */

.stage {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3rem;
}

#chart {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(72vw, 980px);
  height: min(46vh, 420px);
}

.slogan {
  position: absolute;
  left: 3rem;
  bottom: 3rem;
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  line-height: 1.25;
  color: var(--fg);
  max-width: 16ch;
  opacity: 0;
  animation: rise 1s ease-out 1.4s forwards;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Footer ---------- */

.footer {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1.4rem 3rem 1.8rem;
  font-size: 0.78rem;
  color: var(--fg-dim);
}

.footer a {
  color: var(--fg-dim);
  text-decoration: none;
}

.footer a:hover,
.footer a:focus-visible {
  color: var(--fg);
}

.footer .divider {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--fg-dim);
  opacity: 0.6;
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .slogan {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* ---------- Login modal ---------- */

.nav button.cta {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  border: none;
  outline: none;
  font: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  background: var(--accent);
  color: var(--bg);
  padding: 0.55rem 1.3rem;
  border-radius: 100px;
  font-weight: 500;
  line-height: 1.4;
  transition: background 0.2s ease, transform 0.2s ease;
}

.nav button.cta:hover,
.nav button.cta:focus-visible {
  background: #5E8768;
  transform: translateY(-1px);
}

.login-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 100;
  padding: 1.5rem;
}

.login-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.login-modal {
  position: relative;
  width: 100%;
  max-width: 380px;
  background: #0B0B0A;
  border: 1px solid rgba(245, 245, 240, 0.1);
  border-radius: 18px;
  padding: 2.4rem 2.2rem 2rem;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(79, 115, 88, 0.08);
  transform: translateY(14px) scale(0.98);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
}

.login-overlay.is-open .login-modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.login-close {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--fg-dim);
  cursor: pointer;
  border-radius: 50%;
  transition: color 0.2s ease, background 0.2s ease;
}

.login-close:hover,
.login-close:focus-visible {
  color: var(--fg);
  background: rgba(245, 245, 240, 0.06);
}

.login-close svg {
  width: 16px;
  height: 16px;
}

.login-modal h2 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.login-subtitle {
  color: var(--fg-dim);
  font-size: 0.88rem;
  line-height: 1.5;
  margin-bottom: 1.8rem;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.login-field span {
  font-size: 0.78rem;
  color: var(--fg-dim);
}

.login-field input {
  font: inherit;
  color: var(--fg);
  background: rgba(245, 245, 240, 0.04);
  border: 1px solid rgba(245, 245, 240, 0.12);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.login-field input::placeholder {
  color: rgba(138, 138, 133, 0.6);
}

.login-field input:focus {
  border-color: var(--accent);
  background: rgba(245, 245, 240, 0.06);
}

.login-error {
  color: #E27D6A;
  font-size: 0.8rem;
  margin-top: -0.3rem;
}

.login-submit {
  margin-top: 0.4rem;
  padding: 0.8rem 1.3rem;
  border: none;
  border-radius: 100px;
  background: var(--accent);
  color: var(--bg);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.login-submit:hover,
.login-submit:focus-visible {
  background: #5E8768;
  transform: translateY(-1px);
}

.login-forgot {
  display: block;
  text-align: center;
  margin-top: 1.4rem;
  font-size: 0.8rem;
  color: var(--fg-dim);
  text-decoration: none;
}

.login-forgot:hover,
.login-forgot:focus-visible {
  color: var(--fg);
}

@media (prefers-reduced-motion: reduce) {
  .login-overlay,
  .login-modal {
    transition: none;
  }
}

/* ---------- Small screens ---------- */

@media (max-width: 640px) {
  .topbar {
    padding: 1.4rem 1.5rem;
  }
  .nav {
    gap: 1.1rem;
  }
  .nav a:not(.cta) {
    display: none;
  }
  .slogan {
    left: 1.5rem;
    bottom: 1.5rem;
  }
  .footer {
    padding: 1rem 1.5rem 1.4rem;
    flex-wrap: wrap;
    row-gap: 0.4rem;
  }
}