/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Tokens ─────────────────────────────────────────────────── */
:root {
  --bg:          #0d0f1e;
  --surface:     #161829;
  --surface-alt: #1d1f35;
  --border:      #2d3058;
  --accent:      #ffc107;
  --accent-dim:  #e6a800;
  --red:         #e63946;
  --blue:        #4a9eff;
  --text:        #f5f5f5;
  --muted:       #8892b0;
  --danger:      #e63946;
  --font:        'DM Mono', 'Courier New', monospace;
  --radius:      10px;
}

/* ── Base ───────────────────────────────────────────────────── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Grain ──────────────────────────────────────────────────── */
#grain {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ── Header ─────────────────────────────────────────────────── */
#site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(13,15,30,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo { display: flex; align-items: center; gap: 8px; margin-right: auto; text-decoration: none; }
.logo-mark { display: inline-flex; align-items: center; }
.logo-text { font-size: 18px; font-weight: 700; letter-spacing: 0.04em; color: var(--text); }

@keyframes letterwave {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-3px); }
}
.ll {
  display: inline-block;
  animation: letterwave 0.9s ease-in-out infinite;
  animation-delay: calc(var(--i) * 0.08s);
}
.header-title { font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 220px; }
.back-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 12px;
  font-family: var(--font);
}
.back-btn:hover { color: var(--text); border-color: var(--text); }

/* ── Main ───────────────────────────────────────────────────── */
#app {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ── Typography ─────────────────────────────────────────────── */
.section-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
  margin: 0 0 16px;
}

/* ── Buttons ────────────────────────────────────────────────── */
.cta-btn {
  background: var(--accent);
  color: #0d0d0f;
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font);
  letter-spacing: 0.02em;
  transition: opacity 0.15s, transform 0.15s;
}
.cta-btn:hover { opacity: 0.85; }
.cta-btn:disabled { opacity: 0.4; cursor: default; }

/* ── Page transition ripple ─────────────────────────────────── */
.ripple-overlay {
  position: fixed;
  inset: 0;
  background: var(--accent);
  z-index: 9999;
  clip-path: circle(0px at var(--ox, 50%) var(--oy, 50%));
  transition: clip-path 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.ripple-overlay.open {
  clip-path: circle(200vmax at var(--ox, 50%) var(--oy, 50%));
}
.ripple-overlay.fade-out {
  transition: opacity 0.3s ease;
  opacity: 0;
}

.ghost-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 10px 20px;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font);
}
.ghost-btn:hover { color: var(--text); border-color: var(--text); }
.confirm-n-btn:hover { border-color: var(--text); color: var(--text); }

.add-slot-btn {
  background: none;
  border: 1px dashed var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font);
  margin-top: 4px;
  width: 100%;
}
.add-slot-btn:hover { color: var(--text); }

.remove-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
  flex-shrink: 0;
  font-family: var(--font);
}
.remove-btn:hover { color: var(--danger); }

.respond-btn {
  background: none;
  border: 1px solid var(--blue);
  color: var(--blue);
  border-radius: 6px;
  padding: 5px 12px;
  cursor: pointer;
  font-size: 12px;
  font-family: var(--font);
}
.respond-btn:hover { background: rgba(74,158,255,0.08); }

/* ── Fade-in ────────────────────────────────────────────────── */
@keyframes fadeinup {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeinbtn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.hero-title { animation: fadeinup 0.8s ease both; }
.hero-sub   { animation: fadeinup 0.8s 0.12s ease both; }
.hero .cta-btn { animation: fadeinbtn 0.8s 0.26s ease both; transition: transform 0.15s ease; }
.hero .cta-btn:hover { transform: scale(1.07); }

/* ── Home ───────────────────────────────────────────────────── */
.home-wrap { display: flex; flex-direction: column; gap: 48px; }

.hero { padding-top: 24px; }
.hero-title {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.hero-sub {
  color: var(--muted);
  font-size: 15px;
  max-width: 480px;
  line-height: 1.7;
  margin: 0 0 32px;
}

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 12px;
  cursor: pointer;
  transition: border-color 0.15s;
}
.card:hover { border-color: var(--muted); }
.card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.card-title { font-size: 16px; font-weight: 700; }
.card-badge {
  font-size: 11px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px 10px;
  color: var(--muted);
}
.card-meta { font-size: 13px; color: var(--muted); margin: 4px 0; }
.pending-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

/* ── Forms ──────────────────────────────────────────────────── */
.form-wrap { display: flex; flex-direction: column; }
.form-title {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.form-sub { color: var(--muted); font-size: 14px; margin: 0 0 28px; line-height: 1.6; }
.form-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 6px;
  margin-top: 16px;
  display: block;
}
.form-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  width: 100%;
  margin-bottom: 4px;
  transition: border-color 0.15s;
}
.form-input:focus { border-color: var(--accent); }
.form-input.field-error { border-color: var(--danger); }
.form-input::placeholder { color: var(--muted); }
textarea.form-input { height: 80px; resize: vertical; }

.slot-row { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; }
.slot-row .form-input { margin-bottom: 0; }

.allday-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
  font-size: 11px;
  font-family: var(--font);
  white-space: nowrap;
  flex-shrink: 0;
  transition: border-color 0.15s, color 0.15s;
}
.allday-btn:hover { color: var(--text); border-color: var(--muted); }
.allday-btn.active { border-color: var(--accent); color: var(--accent); background: rgba(255,193,7,0.07); }

.form-input:disabled {
  background: var(--bg);
  color: var(--border);
  border-color: var(--border);
  opacity: 0.35;
  cursor: not-allowed;
}

.form-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 32px; }

/* ── Availability grid ──────────────────────────────────────── */
.slot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 8px;
}
.slot-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 14px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  position: relative;
  font-family: var(--font);
  transition: border-color 0.15s;
  color: var(--text);
}
.slot-tile:hover { border-color: var(--muted); }
.slot-tile.active { border-color: var(--accent); background: rgba(255,193,7,0.08); }
.slot-date { font-size: 12px; color: var(--muted); }
.slot-time { font-size: 18px; font-weight: 700; }
.check-mark { position: absolute; top: 10px; right: 12px; color: var(--accent); font-size: 14px; }

/* ── Results ────────────────────────────────────────────────── */
.results-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 28px; }
.results-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 32px; }
.result-row {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.result-row.best { border-color: var(--accent); }
.result-meta { display: flex; align-items: center; gap: 8px; min-width: 200px; flex-wrap: wrap; }
.result-date { font-size: 12px; color: var(--muted); }
.result-time { font-size: 14px; font-weight: 700; }
.best-tag {
  background: var(--accent);
  color: #0d0d0f;
  font-size: 10px;
  font-weight: 700;
  border-radius: 4px;
  padding: 2px 6px;
  letter-spacing: 0.06em;
}
.bar-wrap { flex: 1; background: var(--surface-alt); border-radius: 4px; height: 8px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--border); border-radius: 4px; transition: width 0.6s ease; }
.bar-fill.best { background: var(--accent); }
.result-count { font-size: 12px; color: var(--muted); min-width: 40px; text-align: right; }

.attendee-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.attendee-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
}
.attendee-name { font-size: 14px; font-weight: 600; flex: 1; }
.date-chip {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--text);
}

.responded-dropdown {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 0;
  min-width: 160px;
  z-index: 20;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.responded-dropdown.open { display: block; }
.responded-dropdown-item {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.responded-dropdown-item + .responded-dropdown-item { border-top: 1px solid var(--border); }

.attendee-email { font-size: 12px; color: var(--muted); }

.att-actions { display: flex; gap: 4px; margin-left: auto; }
.att-edit-btn, .att-remove-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
  color: var(--muted);
  font-family: var(--font);
  transition: border-color 0.15s, color 0.15s;
}
.att-edit-btn:hover  { border-color: var(--blue); color: var(--blue); }
.att-remove-btn:hover { border-color: var(--danger); color: var(--danger); }
.responded-tag { font-size: 12px; color: var(--accent); }
.attendee-comment { font-size: 12px; color: var(--muted); width: 100%; padding-top: 4px; border-top: 1px solid var(--border); margin-top: 4px; font-style: italic; }

/* ── Misc ───────────────────────────────────────────────────── */
.delete-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 10px 20px;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font);
  transition: border-color 0.15s, color 0.15s;
}
.delete-btn:hover { border-color: var(--danger); color: var(--danger); }

/* ── Join match card ────────────────────────────────────────── */
.match-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--red);
  border-radius: 8px;
  padding: 12px 16px;
  margin-top: 8px;
}
.match-card .cta-btn { padding: 7px 14px; font-size: 12px; }
.match-label { font-size: 13px; color: var(--muted); }
.match-label strong { color: var(--text); }

.empty { color: var(--muted); font-size: 14px; padding: 8px 0; }
.error-msg {
  background: rgba(255,77,77,0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 16px;
  font-size: 13px;
}

/* ── Comments ───────────────────────────────────────────────── */
.comments-section { margin-top: 40px; }
.comment-form {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}
.comment-form input[type="text"] {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s;
}
.comment-form input[type="text"]:focus { border-color: var(--accent); }
.comment-form input[type="text"]::placeholder { color: var(--muted); }
.comment-form .cta-btn { padding: 10px 18px; font-size: 14px; }
.comment-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.comment-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text);
}

/* ── Auth ───────────────────────────────────────────────────── */
.auth-wrap {
  max-width: 400px;
  margin: 60px auto 0;
  padding: 0 16px;
}
.auth-title {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 24px;
  color: var(--text);
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.auth-form input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s;
}
.auth-form input:focus { border-color: var(--accent); }
.auth-form input::placeholder { color: var(--muted); }
.auth-switch {
  margin-top: 18px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}
.auth-switch a { color: var(--accent); text-decoration: none; }
.auth-switch a:hover { text-decoration: underline; }

/* ── User badge ─────────────────────────────────────────────── */
.user-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}
.user-name {
  font-size: 13px;
  color: var(--muted);
}
.logout-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--font);
  font-size: 12px;
  padding: 4px 10px;
  transition: border-color 0.15s, color 0.15s;
}
.logout-btn:hover { border-color: var(--text); color: var(--text); }