:root{
  --primary:#E52721;
  --primary-gradient: linear-gradient(90deg, #E52721, #730000);
  --accent:#DD0429;

  --bg:#121212;
  --surface:#17161A;
  --neutral:#212529;

  --text:#FFFFFF;
  --muted:#4F4F4F;

  --line:rgba(255,255,255,.08);
  --shadow:0 24px 80px rgba(0,0,0,.5);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
}

*{box-sizing:border-box}
html,body{min-height:100%}
body.theme-dark{
  margin:0;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(76,111,255,.18), transparent 26%),
    radial-gradient(circle at top right, rgba(37,211,102,.08), transparent 22%),
    linear-gradient(180deg, #07101d 0%, #08111f 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a{text-decoration:none}
.has-text-white{color:var(--text)!important}
.title,.label,.table th,.table td{color:var(--text)!important}

.app-shell{
  display:grid;
  grid-template-columns:280px 1fr;
  min-height:100vh;
}

.app-sidebar{
  border-right:1px solid var(--line);
  background:rgba(10,18,33,.72);
  backdrop-filter: blur(18px);
  padding:28px;
}

.brand-lockup{margin-bottom:36px}
.brand-pill{
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  border-radius:999px;
  background:var(--primary-soft);
  color:#cdd7ff;
  font-weight:700;
  letter-spacing:.02em;
}
.brand-meta{
  color:var(--muted);
  margin-top:10px;
  font-size:.95rem;
}
.sidebar-nav{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.sidebar-nav a{
  color:#d8e0f5;
  padding:14px 16px;
  border-radius:14px;
  border:1px solid transparent;
  background:transparent;
}
.sidebar-nav a:hover{
  background:rgba(255,255,255,.04);
  border-color:var(--line);
}

.app-main{
  padding:36px;
}

.page-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.eyebrow{
  color:#8da0cb;
  text-transform:uppercase;
  letter-spacing:.16em;
  font-size:.74rem;
  font-weight:700;
  margin-bottom:8px;
}

.glass-card{
  background:linear-gradient(180deg, rgba(18,29,51,.94), rgba(13,22,39,.96));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  border-radius:var(--radius-lg);
}
.form-card,.table-wrap,.stats-card{padding:26px}

.dashboard-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:20px;
}
.stat-label{color:var(--muted); margin-bottom:10px}
.stat-value{font-size:3rem; font-weight:800}

.dark-input,
.dark-input.input,
.dark-input.textarea{
  background:#0b1525!important;
  color:var(--text)!important;
  border:1px solid var(--line-strong)!important;
  border-radius:14px!important;
  box-shadow:none!important;
}
.dark-input::placeholder{color:#7485a8}

.action-button{
  background:linear-gradient(180deg, #5f7cff, #4c6fff)!important;
  color:white!important;
  border:none!important;
  border-radius:14px!important;
  font-weight:700;
  padding:0 18px!important;
  min-height:48px;
  box-shadow:0 12px 30px rgba(76,111,255,.35);
}

.dark-table{
  background:transparent!important;
}
.dark-table thead th{
  color:#b8c5e0!important;
  border-color:var(--line)!important;
}
.dark-table td{
  border-color:var(--line)!important;
}

.availability-row{
  display:grid;
  grid-template-columns:180px 1fr 1fr 120px;
  gap:14px;
  align-items:center;
  margin-bottom:14px;
}
.availability-day{color:#d7def0;font-weight:600}
.switch-label{color:#c3cee7}

/* Auth */
.auth-shell{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:28px;
}
.auth-card{
  width:min(520px, 100%);
  padding:30px;
}

/* Booking */
.booking-page-body{
  padding:24px;
}
.booking-shell{
  min-height:calc(100vh - 48px);
  display:grid;
  place-items:center;
}
.booking-surface{
  width:min(1280px, 100%);
  display:grid;
  grid-template-columns:400px 1fr;
  background:linear-gradient(180deg, rgba(16,28,49,.96), rgba(10,18,32,.98));
  border:1px solid var(--line);
  border-radius:32px;
  overflow:hidden;
  box-shadow:var(--shadow);
  position:relative;
}
.booking-side{
  border-right:1px solid var(--line);
  padding:32px;
  background:
    radial-gradient(circle at top left, rgba(76,111,255,.16), transparent 35%),
    linear-gradient(180deg, rgba(15,28,49,.98), rgba(10,18,32,.98));
}
.back-badge{
  width:50px;height:50px;border-radius:999px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  color:#8fb2ff;
  font-size:1.4rem;
  margin-bottom:24px;
}
.workspace-logo{
  width:124px;height:124px;border-radius:26px;
  display:grid;place-items:center;
  background:#0a1220;
  border:1px solid var(--line);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.03);
  margin-bottom:54px;
}
.workspace-logo-inner{
  color:#ff3c3c;
  font-weight:800;
  font-size:1.35rem;
  letter-spacing:-.04em;
}
.host-row{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:18px;
}
.host-avatar{
  width:56px;height:56px;border-radius:999px;
  display:grid;place-items:center;
  background:linear-gradient(180deg,#dce6ff,#a9bcff);
  color:#11203c;font-weight:800;
}
.host-name{font-weight:700}
.host-role{color:var(--muted);font-size:.92rem}
.event-kicker{color:#89a0d1;font-weight:700;margin-bottom:8px}
.event-title{
  font-size:2.35rem;
  line-height:1.05;
  margin:0 0 12px;
  font-weight:800;
  letter-spacing:-.04em;
}
.event-duration{
  color:#dce4fb;
  font-weight:600;
  margin-bottom:18px;
}
.event-description{
  color:#c2cce3;
  line-height:1.75;
  max-width:290px;
}
.booking-main{
  position:relative;
  padding:38px 36px 30px;
}
.booking-ribbon{
  position:absolute;
  top:0; right:0;
  padding:14px 18px 10px;
  background:#57606f;
  color:white;
  font-size:.74rem;
  font-weight:700;
  text-align:center;
  transform:translate(22px, 6px) rotate(45deg);
  transform-origin:top right;
  width:170px;
  text-transform:uppercase;
  letter-spacing:.08em;
}
.booking-head h2{
  margin:0;
  font-size:2.05rem;
  letter-spacing:-.03em;
}
.booking-head p{
  color:var(--muted);
  margin-top:8px;
  margin-bottom:26px;
}
.booking-grid{
  display:grid;
  grid-template-columns:1fr 320px;
  gap:26px;
}
.calendar-panel,.slots-panel{
  border:1px solid var(--line);
  background:rgba(9,16,29,.42);
  border-radius:24px;
  padding:24px;
}
.calendar-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:18px;
  margin-bottom:24px;
}
.calendar-title{
  min-width:220px;
  text-align:center;
  font-size:1.4rem;
  font-weight:700;
}
.calendar-arrow{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--line);
  background:#101b2f;color:#dce6ff;font-size:1.7rem;line-height:1;cursor:pointer;
}
.calendar-weekdays,.calendar-days{
  display:grid;
  grid-template-columns:repeat(7, 1fr);
  gap:12px;
}
.calendar-weekdays{
  margin-bottom:14px;
}
.calendar-weekdays span{
  text-align:center;
  color:#90a2c4;
  font-size:.84rem;
  font-weight:700;
}
.calendar-day{
  aspect-ratio:1/1;
  border-radius:999px;
  border:1px solid transparent;
  background:#0f1a2d;
  color:#dbe6ff;
  cursor:pointer;
  font-weight:700;
  transition:.18s ease;
}
.calendar-day:hover{border-color:#5876ff;background:#122142}
.calendar-day.is-selected{
  background:linear-gradient(180deg,#6080ff,#4367ff);
  color:white;
  box-shadow:0 10px 24px rgba(76,111,255,.4);
}
.calendar-day.is-disabled{
  opacity:.34;
  cursor:not-allowed;
}
.calendar-day.is-empty{
  background:transparent;
  border-color:transparent;
}
.timezone-row{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:20px;
  color:#c7d2eb;
  font-weight:600;
}
.timezone-small{color:#8da0c8}

.slots-head{margin-bottom:18px}
.slots-title{font-size:1.15rem;font-weight:700}
.slots-subtitle{color:var(--muted);margin-top:6px}
.slots-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  min-height:320px;
  max-height:320px;
  overflow:auto;
  padding-right:4px;
  margin-bottom:22px;
}
.slot-pill{
  min-height:52px;
  border-radius:16px;
  border:1px solid rgba(94,121,255,.35);
  background:rgba(76,111,255,.12);
  color:#dce6ff;
  font-weight:700;
  cursor:pointer;
}
.slot-pill:hover{
  background:rgba(76,111,255,.22);
}
.slot-pill.is-selected{
  background:linear-gradient(180deg,#5e7dff,#4669ff);
  color:white;
  box-shadow:0 10px 24px rgba(76,111,255,.34);
}
.slot-empty{
  display:grid;
  place-items:center;
  min-height:120px;
  border:1px dashed var(--line-strong);
  border-radius:18px;
  color:var(--muted);
  padding:20px;
  text-align:center;
}
.invitee-form{
  border-top:1px solid var(--line);
  padding-top:18px;
}
.success-surface{
  display:block;
  max-width:760px;
}
.success-card{padding:30px}

@media (max-width: 1100px){
  .booking-surface{grid-template-columns:1fr}
  .booking-side{border-right:none;border-bottom:1px solid var(--line)}
  .booking-grid{grid-template-columns:1fr}
}

@media (max-width: 920px){
  .app-shell{grid-template-columns:1fr}
  .app-sidebar{display:none}
  .app-main{padding:20px}
  .availability-row{grid-template-columns:1fr;gap:10px}
  .booking-page-body{padding:10px}
  .booking-main{padding:26px 18px 20px}
  .booking-side{padding:22px}
  .calendar-weekdays,.calendar-days{gap:8px}
}


/* v4 mobile optimization */
@media (max-width: 768px){
  .booking-shell{
    align-items:start;
  }

  .booking-surface{
    width:100%;
    border-radius:20px;
    margin:0;
  }

  .booking-ribbon{
    display:none;
  }

  .booking-head h2{
    font-size:1.5rem;
  }

  .booking-head p{
    font-size:.95rem;
    line-height:1.5;
  }

  .workspace-logo{
    width:88px;
    height:88px;
    border-radius:18px;
    margin-bottom:22px;
  }

  .workspace-logo-inner{
    font-size:1rem;
  }

  .host-row{
    margin-bottom:14px;
  }

  .host-avatar{
    width:48px;
    height:48px;
    font-size:.95rem;
  }

  .event-title{
    font-size:1.8rem;
  }

  .event-description{
    max-width:none;
    font-size:.98rem;
    line-height:1.65;
  }

  .booking-grid{
    gap:18px;
  }

  .calendar-panel,
  .slots-panel{
    padding:18px;
    border-radius:18px;
  }

  .calendar-nav{
    gap:10px;
    margin-bottom:16px;
  }

  .calendar-title{
    min-width:auto;
    font-size:1.12rem;
  }

  .calendar-arrow{
    width:38px;
    height:38px;
    font-size:1.35rem;
  }

  .calendar-weekdays,
  .calendar-days{
    gap:6px;
  }

  .calendar-weekdays span{
    font-size:.72rem;
  }

  .calendar-day{
    min-height:42px;
    font-size:.92rem;
  }

  .slots-list{
    min-height:0;
    max-height:none;
    overflow:visible;
    display:grid;
    grid-template-columns:repeat(2, minmax(0, 1fr));
    gap:10px;
  }

  .slot-pill{
    min-height:46px;
    border-radius:14px;
    font-size:.95rem;
  }

  .slot-empty{
    grid-column:1 / -1;
    min-height:90px;
    font-size:.92rem;
  }

  .invitee-form .field{
    margin-bottom:14px;
  }

  .timezone-row{
    flex-wrap:wrap;
    row-gap:6px;
    font-size:.92rem;
  }

  .action-button{
    min-height:46px;
  }
}

@media (max-width: 560px){
  .app-main{
    padding:14px;
  }

  .page-head{
    align-items:flex-start;
    flex-direction:column;
    margin-bottom:18px;
  }

  .stats-card,
  .form-card,
  .table-wrap{
    padding:18px;
  }

  .dashboard-grid{
    grid-template-columns:1fr;
    gap:14px;
  }

  .booking-page-body{
    padding:0;
  }

  .booking-shell{
    min-height:100vh;
  }

  .booking-surface{
    border-radius:0;
    border-left:none;
    border-right:none;
    min-height:100vh;
  }

  .booking-side{
    padding:18px 16px;
  }

  .booking-main{
    padding:18px 16px 24px;
  }

  .back-badge{
    width:42px;
    height:42px;
    margin-bottom:18px;
  }

  .booking-head{
    margin-bottom:4px;
  }

  .calendar-panel,
  .slots-panel{
    padding:14px;
    border-radius:16px;
  }

  .calendar-days{
    grid-template-columns:repeat(7, minmax(0, 1fr));
  }

  .calendar-day{
    min-height:38px;
    font-size:.88rem;
  }

  .slots-list{
    grid-template-columns:1fr 1fr;
  }

  .dark-input,
  .dark-input.input,
  .dark-input.textarea{
    min-height:46px;
    font-size:16px !important;
  }

  .invitee-form{
    margin-top:4px;
  }
}

@media (max-width: 420px){
  .event-title{
    font-size:1.55rem;
  }

  .calendar-weekdays span{
    font-size:.66rem;
  }

  .calendar-day{
    min-height:34px;
    font-size:.82rem;
  }

  .slots-list{
    grid-template-columns:1fr;
  }

  .slot-pill{
    width:100%;
  }

  .timezone-row{
    align-items:flex-start;
  }
}


/* v5 brand styling */
.action-button{
  background: var(--primary-gradient)!important;
  color:#fff!important;
  box-shadow:0 10px 30px rgba(229,39,33,.4);
}

.calendar-day.is-selected{
  background: var(--primary-gradient);
  color:white;
}

.slot-pill.is-selected{
  background: var(--primary-gradient);
}

.brand-pill{
  background: rgba(229,39,33,.15);
  color:#ffb3b0;
}

body.theme-dark{
  background: #121212;
}


/* v6 premium ui */
.premium-surface{
  grid-template-columns: 380px 1fr;
  background:
    radial-gradient(circle at top right, rgba(229,39,33,.12), transparent 24%),
    linear-gradient(180deg, rgba(23,22,26,.98), rgba(18,18,18,.99));
}

.premium-side{
  background:
    radial-gradient(circle at top left, rgba(229,39,33,.10), transparent 34%),
    linear-gradient(180deg, rgba(23,22,26,.98), rgba(18,18,18,.98));
}

.premium-logo{
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.03),
    0 20px 50px rgba(0,0,0,.35);
}

.premium-features{
  padding:18px;
  margin-top:26px;
  display:grid;
  gap:12px;
}

.feature-item{
  display:flex;
  align-items:center;
  gap:10px;
  color:#d9d9de;
  font-weight:600;
}

.feature-dot{
  width:10px;
  height:10px;
  border-radius:999px;
  background:linear-gradient(90deg, #E52721, #730000);
  box-shadow:0 0 18px rgba(229,39,33,.4);
}

.booking-progress{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:26px;
  flex-wrap:wrap;
}

.progress-step{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.02);
  color:#8f8f97;
  transition:.2s ease;
}

.progress-step.is-active{
  border-color:rgba(229,39,33,.45);
  background:rgba(229,39,33,.12);
  color:#fff;
}

.progress-step.is-done{
  border-color:rgba(229,39,33,.25);
  background:rgba(229,39,33,.08);
  color:#f2d6d6;
}

.step-index{
  width:26px;
  height:26px;
  border-radius:999px;
  display:grid;
  place-items:center;
  background:#212529;
  font-size:.85rem;
  font-weight:800;
}

.progress-step.is-active .step-index,
.progress-step.is-done .step-index{
  background:linear-gradient(90deg, #E52721, #730000);
  color:#fff;
}

.progress-connector{
  width:28px;
  height:1px;
  background:rgba(255,255,255,.08);
}

.premium-head{
  margin-bottom:22px;
}

.premium-grid{
  grid-template-columns: minmax(0, 1fr) 340px;
  align-items:start;
}

.premium-panel{
  position:relative;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(33,37,41,.62), rgba(23,22,26,.88));
  box-shadow:0 18px 60px rgba(0,0,0,.22);
}

.panel-badge{
  position:absolute;
  top:14px;
  right:14px;
  padding:8px 10px;
  border-radius:999px;
  background:rgba(229,39,33,.12);
  border:1px solid rgba(229,39,33,.18);
  color:#ffbebc;
  font-size:.72rem;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.sticky-panel{
  position:sticky;
  top:18px;
}

.details-panel{
  margin-top:24px;
  padding:24px;
  border-radius:24px;
}

.details-head{
  margin-bottom:18px;
}

.details-title{
  font-size:1.15rem;
  font-weight:800;
  color:#fff;
}

.details-subtitle{
  color:#8f8f97;
  margin-top:6px;
}

.details-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}

.booking-summary{
  margin-top:20px;
  padding:18px;
}

.summary-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:8px 0;
  color:#d5d5da;
}

.summary-row span{
  color:#8f8f97;
}

.premium-cta{
  margin-top:18px;
  min-height:56px;
  font-size:1rem;
  letter-spacing:.01em;
}

.premium-cta.is-disabled{
  opacity:.56;
  filter:saturate(.7);
}

.slot-pill{
  transition:transform .15s ease, background .18s ease, box-shadow .18s ease;
}

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

.calendar-day{
  transition:transform .15s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.calendar-day:hover{
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(0,0,0,.15);
}

@media (max-width: 1100px){
  .premium-surface{
    grid-template-columns:1fr;
  }

  .premium-grid{
    grid-template-columns:1fr;
  }

  .sticky-panel{
    position:relative;
    top:auto;
  }
}

@media (max-width: 768px){
  .booking-progress{
    gap:8px;
    margin-bottom:18px;
  }

  .progress-step{
    padding:8px 10px;
    gap:8px;
  }

  .progress-connector{
    display:none;
  }

  .details-grid{
    grid-template-columns:1fr;
    gap:12px;
  }

  .details-panel{
    margin-top:18px;
    padding:18px;
    border-radius:18px;
  }

  .panel-badge{
    position:static;
    display:inline-flex;
    margin-bottom:14px;
  }
}