:root {
  --bg0: #0a1210;
  --bg1: #12201c;
  --bg2: #1a2e28;
  --ink: #e8f2ee;
  --muted: #8aa399;
  --accent: #3dd68c;
  --accent-dim: #2a9f68;
  --warn: #f0b429;
  --danger: #f07178;
  --line: rgba(232, 242, 238, 0.1);
  --card: rgba(18, 32, 28, 0.72);
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(61, 214, 140, 0.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(45, 140, 200, 0.12), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1) 45%, #0d1814);
  background-attachment: fixed;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  animation: rise 0.7s ease both;
}

.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-decoration: none;
}

.brand span {
  color: var(--accent);
}

.nav-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0.7rem 1.15rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--accent);
  color: #062016;
}

.btn-primary:hover {
  background: #52e09c;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-danger {
  background: transparent;
  border-color: rgba(240, 113, 120, 0.4);
  color: var(--danger);
}

.hero {
  min-height: calc(100vh - 5rem);
  display: grid;
  align-content: center;
  gap: 1.25rem;
  padding: 2rem 0 4rem;
  animation: rise 0.85s 0.08s ease both;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  max-width: 11ch;
}

.hero p {
  margin: 0;
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.55;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  margin-top: 0.75rem;
}

.price-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink);
  font-weight: 700;
}

.price-pill em {
  font-style: normal;
  color: var(--accent);
}

.section {
  padding: 4rem 0;
  border-top: 1px solid var(--line);
  animation: rise 0.8s ease both;
}

.section h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  letter-spacing: -0.03em;
}

.section .lead {
  margin: 0 0 2rem;
  color: var(--muted);
  max-width: 36rem;
}

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

@media (max-width: 860px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.feature {
  padding: 1.25rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  backdrop-filter: blur(10px);
}

.feature h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.98rem;
}

.demo-url {
  margin-top: 1.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.05rem;
  padding: 1rem 1.15rem;
  border-radius: 14px;
  border: 1px dashed rgba(61, 214, 140, 0.45);
  background: rgba(61, 214, 140, 0.06);
  width: fit-content;
  max-width: 100%;
  word-break: break-all;
  animation: pulse-border 3s ease-in-out infinite;
}

.footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  font-size: 0.92rem;
  border-top: 1px solid var(--line);
}

/* App / dashboard */
.app-shell {
  padding-bottom: 3rem;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 0 1.5rem;
  flex-wrap: wrap;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--card);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.panel h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

label {
  display: block;
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

input,
textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
  color: var(--ink);
  padding: 0.75rem 0.9rem;
  font: inherit;
  margin-bottom: 0.9rem;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(61, 214, 140, 0.35);
  border-color: rgba(61, 214, 140, 0.5);
}

.hint {
  color: var(--muted);
  font-size: 0.88rem;
  margin: -0.4rem 0 0.9rem;
}

.links-list {
  display: grid;
  gap: 0.75rem;
}

.link-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  display: grid;
  gap: 0.55rem;
}

.link-card strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.link-card code {
  font-size: 0.92rem;
  color: var(--accent);
  word-break: break-all;
}

.link-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.status {
  padding: 0.75rem 1rem;
  border-radius: 12px;
  margin-bottom: 1rem;
  display: none;
}

.status.show {
  display: block;
}

.status.error {
  background: rgba(240, 113, 120, 0.12);
  border: 1px solid rgba(240, 113, 120, 0.35);
  color: #ffc4c7;
}

.status.ok {
  background: rgba(61, 214, 140, 0.12);
  border: 1px solid rgba(61, 214, 140, 0.35);
  color: #b6f5d3;
}

.status.info {
  background: rgba(240, 180, 41, 0.1);
  border: 1px solid rgba(240, 180, 41, 0.3);
  color: #ffe2a0;
}

.empty {
  color: var(--muted);
  padding: 0.5rem 0;
}

.login-box {
  max-width: 420px;
  margin: 10vh auto;
  text-align: center;
  padding: 2rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--card);
}

.login-box h1 {
  font-family: var(--font-display);
  margin: 0 0 0.5rem;
}

.login-box p {
  color: var(--muted);
  margin: 0 0 1.25rem;
}

.auth-tabs {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.auth-tab.active {
  border-color: rgba(61, 214, 140, 0.55);
  color: var(--accent);
}

.auth-form {
  text-align: left;
}

.login-box .btn-primary {
  margin-top: 0.25rem;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 40;
}

.modal-backdrop.show {
  display: flex;
}

.modal {
  width: min(520px, 100%);
  background: var(--bg1);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.25rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-border {
  0%,
  100% {
    border-color: rgba(61, 214, 140, 0.35);
  }
  50% {
    border-color: rgba(61, 214, 140, 0.75);
  }
}