/* ==========================================================================
   BirthdayAlertDay — promo landing page
   Тёмная тема с фиолетово-синим (Discord-blurple) акцентом, без фреймворков.
   ========================================================================== */

:root {
  --bg: #0e0f1a;
  --bg-elevated: #16171f;
  --bg-embed: #2b2d31;
  --accent: #5865f2;
  --accent-strong: #7c6cf0;
  --gold: #ffc857;
  --text: #f5f6fa;
  --text-muted: #b5b9c9;
  --border: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --container-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

.text-accent {
  color: var(--accent-strong);
}

/* ---------------------------- Buttons ---------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

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

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  box-shadow: 0 8px 24px rgba(88, 101, 242, 0.35);
}

.btn--primary:hover {
  box-shadow: 0 10px 28px rgba(88, 101, 242, 0.5);
}

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

.btn--ghost:hover {
  border-color: var(--accent-strong);
}

.btn--lg {
  padding: 14px 28px;
  font-size: 1.05rem;
}

/* ---------------------------- Navbar ---------------------------- */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 15, 26, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  margin-right: auto;
}

.navbar__logo-icon {
  font-size: 1.3rem;
}

.navbar__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}

.navbar__burger span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.navbar__link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  color: var(--text-muted);
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.navbar__link:hover {
  color: var(--text);
}

.navbar__dropdown {
  position: relative;
}

.navbar__dropdown-menu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.navbar__dropdown.is-open .navbar__dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.navbar__dropdown-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 160px;
}

.navbar__dropdown-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-strong);
  font-weight: 700;
  margin-bottom: 4px;
}

.navbar__dropdown-group a {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
}

.navbar__dropdown-group a:hover {
  color: var(--text);
}

.navbar__cta {
  margin-left: auto;
}

/* ---------------------------- Hero ---------------------------- */

.hero {
  position: relative;
  padding: 110px 0 90px;
  overflow: hidden;
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(circle, rgba(88, 101, 242, 0.35), transparent 70%);
  filter: blur(20px);
  z-index: -1;
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(255, 200, 87, 0.12);
  border: 1px solid rgba(255, 200, 87, 0.35);
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 600;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 900px;
}

.hero__subtitle {
  max-width: 560px;
  color: var(--text-muted);
  font-size: 1.1rem;
  margin: 0;
}

.hero__actions {
  display: flex;
  gap: 14px;
  margin-top: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ---------------------------- Features ---------------------------- */

.features {
  padding: 40px 0 120px;
}

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 56px;
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}

.features .feature:last-child {
  border-bottom: none;
}

.feature--reverse .feature__media {
  order: -1;
}

.feature__title {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 0 14px;
}

.feature__desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0 0 20px;
}

.feature__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chip {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text);
}

.chip--extra {
  background: rgba(88, 101, 242, 0.12);
  border-color: rgba(88, 101, 242, 0.4);
  color: var(--accent-strong);
}

.feature__media {
  display: flex;
  justify-content: center;
}

/* ---------------------------- Discord message mock ---------------------------- */

.discord-mock {
  width: 100%;
  max-width: 420px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
}

.discord-mock__slash {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.discord-mock__slash-icon {
  color: var(--accent-strong);
  font-weight: 700;
}

.discord-mock__slash-opt {
  color: var(--text);
  margin-left: 4px;
}

.discord-mock__msg {
  display: flex;
  gap: 12px;
}

.discord-mock__avatar {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.discord-mock__body {
  flex: 1;
  min-width: 0;
}

.discord-mock__author {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.discord-mock__bot-tag {
  font-size: 0.6rem;
  background: var(--accent);
  color: #fff;
  padding: 1px 5px;
  border-radius: 4px;
  font-weight: 700;
}

.discord-mock__ping,
.discord-mock__plain {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.6;
}

.discord-mock__mention {
  background: rgba(88, 101, 242, 0.25);
  color: #c9d0ff;
  border-radius: 4px;
  padding: 0 3px;
}

.discord-mock__embed {
  margin-top: 10px;
  background: var(--bg-embed);
  border-left: 4px solid var(--gold);
  border-radius: 6px;
  padding: 12px 14px;
}

.discord-mock__embed-title {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.discord-mock__embed-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.discord-mock__embed-footer {
  margin-top: 10px;
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.8;
}

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

.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer__link:hover {
  color: var(--text);
}

/* ---------------------------- Responsive ---------------------------- */

@media (max-width: 860px) {
  .feature,
  .feature--reverse {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0;
  }

  .feature--reverse .feature__media {
    order: 0;
  }

  .navbar__burger {
    display: flex;
  }

  .navbar__nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
  }

  .navbar__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .navbar__dropdown-menu {
    position: static;
    transform: none;
    grid-template-columns: 1fr;
    width: 100%;
    margin-top: 10px;
    display: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    box-shadow: none;
  }

  .navbar__dropdown.is-open .navbar__dropdown-menu {
    display: grid;
  }
}

/* ---------------------------- Text pages (docs / terms / privacy) ---------------------------- */

.page-header {
  padding: 64px 0 32px;
  text-align: center;
}

.page-header__title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin: 0 0 12px;
}

.page-header__subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0;
}

.prose {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 100px;
}

.prose h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 48px 0 16px;
  padding-top: 8px;
  scroll-margin-top: 90px;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 28px 0 10px;
  color: var(--accent-strong);
  scroll-margin-top: 90px;
}

.prose p {
  color: var(--text-muted);
  margin: 0 0 14px;
}

.prose ul,
.prose ol {
  color: var(--text-muted);
  margin: 0 0 14px;
  padding-left: 22px;
}

.prose li {
  margin-bottom: 6px;
}

.prose li::marker {
  color: var(--accent-strong);
}

.prose code {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.88em;
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
}

.prose a {
  color: var(--accent-strong);
  text-decoration: underline;
}

.prose strong {
  color: var(--text);
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

.callout {
  background: rgba(88, 101, 242, 0.1);
  border: 1px solid rgba(88, 101, 242, 0.35);
  border-radius: 12px;
  padding: 16px 20px;
  margin: 0 0 14px;
  color: var(--text);
  font-size: 0.95rem;
}

.callout strong {
  color: var(--accent-strong);
}

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0 0 40px;
  justify-content: center;
}

.toc a {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.toc a:hover {
  color: var(--text);
  border-color: var(--accent-strong);
}

.cmd-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 16px;
}

.cmd-card__name {
  display: inline-block;
  font-family: "SFMono-Regular", Consolas, Menlo, monospace;
  font-size: 0.95rem;
  color: var(--gold);
  margin: 0 0 8px;
}

.cmd-card__desc {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.92rem;
}