/* ===================================================================
   CollabLS – base theme + layout + nav
   =================================================================== */

/* -----------------------------
   Design tokens
----------------------------- */

:root {
  /* Palette */
  --ls-bg: #020617;
  --ls-bg-alt: #020617;
  --ls-card-bg: #020617;
  --ls-card-border: #1f2937;
  --ls-text: #e5e7eb;
  --ls-text-muted: #9ca3af;

  /* CollabLS brand accents */
  --ls-primary: #4e7a27;   /* green brand */
  --ls-accent:  #000000;   /* dark accent */

  /* Radii / shadows */
  --ls-radius-card: 1.2rem;
  --ls-radius-pill: 999px;
  --ls-shadow-card: 0 26px 70px rgba(0, 0, 0, 0.85);

  /* Typography */
  --ls-font: system-ui, -apple-system, BlinkMacSystemFont,
             "Segoe UI", sans-serif;
}

/* -----------------------------
   Base
----------------------------- */

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  padding: 0.9rem;
  font-family: var(--ls-font);
  background:
    radial-gradient(circle at top left,
      rgba(16, 185, 129, 0.12) 0,
      #020617 40%,
      #020617 100%);
  color: var(--ls-text);
  min-height: 100vh;
}

/* Shell to keep everything centered-ish */
.collab-shell {
  max-width: 960px;
  margin: 0 auto;
}

/* -----------------------------
   Card + typography
----------------------------- */

.ls-card {
  position: relative;
  background: radial-gradient(circle at top left,
    rgba(15, 23, 42, 0.35) 0,
    var(--ls-card-bg) 45%);
  border-radius: var(--ls-radius-card);
  border: 1px solid var(--ls-card-border);
  padding: 1.6rem 1.7rem 1.4rem;
  box-shadow: var(--ls-shadow-card);
  overflow: hidden;
}

.ls-card-inner {
  position: relative;
  z-index: 1;
}

.ls-h1 {
  margin: 0 0 0.6rem;
  font-size: 1.9rem;
  line-height: 1.1;
}

.ls-h2 {
  margin: 0 0 0.4rem;
  font-size: 1.25rem;
}

.ls-text-muted {
  color: var(--ls-text-muted);
  font-size: 0.95rem;
}

/* Pills / labels */

.ls-pill-app {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.8rem;
  border-radius: var(--ls-radius-pill);
  font-size: 0.8rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.55);
  margin-bottom: 0.9rem;
  color: var(--ls-text-muted);
}

.ls-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: rgba(148, 163, 184, 0.18);
  color: var(--ls-text-muted);
}

/* -----------------------------
   Forms
----------------------------- */

.ls-form {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.ls-label {
  font-size: 0.85rem;
  display: block;
}

.ls-input,
.ls-textarea,
.ls-select {
  margin-top: 0.2rem;
  width: 100%;
  padding: 0.55rem 0.65rem;
  border-radius: 0.45rem;
  border: 1px solid #4b5563;
  background: #020617;
  color: var(--ls-text);
  font: inherit;
}

.ls-input::placeholder,
.ls-textarea::placeholder {
  color: rgba(148, 163, 184, 0.8);
}

.ls-input:focus,
.ls-textarea:focus,
.ls-select:focus {
  outline: none;
  border-color: rgba(96, 165, 250, 0.9);
  box-shadow: 0 0 0 1px rgba(96, 165, 250, 0.5);
}

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

.ls-checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--ls-text-muted);
}

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

.ls-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  border-radius: var(--ls-radius-pill);
  border: none;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.ls-btn-primary {
  background: var(--ls-primary);
  color: #f9fafb;
}

.ls-btn-outline {
  background: transparent;
  color: var(--ls-text);
  border: 1px solid #4b5563;
}

.ls-btn:disabled,
.ls-btn[disabled] {
  opacity: 0.5;
  cursor: default;
}

/* Discovery CTA row */

.ls-cta-row {
  margin-top: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

/* -----------------------------
   Flash messages
----------------------------- */

.ls-flash-success {
  margin-bottom: 0.75rem;
  padding: 0.55rem 0.7rem;
  border-radius: 0.6rem;
  background: rgba(22, 163, 74, 0.12);
  color: #bbf7d0;
  font-size: 0.88rem;
}

.ls-flash-error {
  margin-bottom: 0.75rem;
  padding: 0.55rem 0.7rem;
  border-radius: 0.6rem;
  background: rgba(185, 28, 28, 0.16);
  color: #fecaca;
  font-size: 0.88rem;
}

/* -----------------------------
   Matches list (simple)
----------------------------- */

.matches-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1rem;
}

.match-card {
  padding: 0.85rem 0.9rem;
  border-radius: 0.75rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(31, 41, 55, 0.9);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.match-card-title {
  font-weight: 600;
}

.match-card-meta {
  font-size: 0.85rem;
  color: var(--ls-text-muted);
}

/* ===================================================================
   NAVIGATION
   =================================================================== */

/* Layout */

.collab-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.4rem 0.2rem 0.9rem;
}

.collab-nav-left {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

/* Brand pill */

.collab-nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--ls-text);
  font-weight: 600;
  font-size: 0.98rem;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.collab-nav-icon {
  font-size: 1.1rem;
}

.collab-nav-title {
  letter-spacing: 0.03em;
}

/* Desktop links + auth */

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

.collab-nav-links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.collab-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ls-text-muted);
  border: 1px solid transparent;
  white-space: nowrap;
}

.collab-nav-link:hover {
  color: var(--ls-text);
  border-color: rgba(148, 163, 184, 0.55);
  background: rgba(15, 23, 42, 0.85);
}

.collab-nav-link--ghost {
  border-color: rgba(31, 41, 55, 0.9);
}

.collab-nav-cta {
  border: none;
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--ls-primary);
  color: #f9fafb;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.collab-nav-cta:hover {
  filter: brightness(1.08);
}

/* Hamburger toggle (circle with 3 bars) */
.collab-nav-toggle {
  display: inline-flex;
  align-items: center;          /* center horizontally */
  justify-content: center;      /* center vertically */
  flex-direction: column;
  gap: 3px;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.5);
  background: rgba(15,23,42,0.9);
  cursor: pointer;
  padding: 0;
}

/* the three bars */
.collab-nav-toggle span {
  display: block;
  width: 1.3rem;
  height: 2px;
  background: #e5e7eb;
  border-radius: 999px;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

/* when button has .is-open, morph into an X */
.collab-nav-toggle.is-open span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
.collab-nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.collab-nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* morph into an X when open */
.collab-nav-toggle.is-open .collab-nav-toggle-line:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
.collab-nav-toggle.is-open .collab-nav-toggle-line:nth-child(2) {
  opacity: 0;
}
.collab-nav-toggle.is-open .collab-nav-toggle-line:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* -----------------------------
   Mobile nav behavior
----------------------------- */

@media (max-width: 640px) {
  body {
    padding: 0.9rem 0.7rem 2.2rem;
  }

  .collab-nav {
    position: relative;
    padding-bottom: 0.4rem;
  }

  /* show hamburger on mobile */
  .collab-nav-toggle {
    display: inline-flex;
  }

  /* dropdown panel (hidden by default) */
  .collab-nav-right {
    position: absolute;
    top: 3.1rem;
    right: 0;
    left: 0;
    display: none;
    padding: 0.6rem 0.6rem 0.7rem;
    border-radius: 0.9rem;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(18px);
    flex-direction: column;
    gap: 0.45rem;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.9);
    z-index: 20;
  }

  /* show when JS toggles .is-open */
  .collab-nav-right.is-open {
    display: flex;
  }

  .collab-nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

  .collab-nav-link {
    width: 100%;
    justify-content: flex-start;
  }

  .collab-nav-cta {
    width: 100%;
    justify-content: center;
  }
}