/* ============================================================
  SCHEDMATE — SIGNUP (FIGMA-STYLE SAAS • v1)
  Used by: /auth/signup.html
============================================================ */

* { box-sizing: border-box; }
html, body { height: 100%; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}
a{ color: inherit; text-decoration: none; }
p{ margin: 0; }
:focus-visible{ outline:none; box-shadow: var(--ring); border-color: color-mix(in srgb, var(--brand) 55%, var(--border)); }

:root{
  --bg: #070b15;
  --bg2:#0b1327;
  --surface: rgba(15, 23, 42, 0.62);
  --surface-2: rgba(15, 23, 42, 0.42);
  --surface-solid: rgba(15, 23, 42, 0.92);

  --text: #e8eeff;
  --muted: #a7b3d3;
  --muted2:#7f8db2;

  --border: rgba(148, 163, 184, 0.16);
  --border-2: rgba(148, 163, 184, 0.22);

  --brand: #2f6bff;
  --brand2:#6aa7ff;
  --ok:#22c55e;
  --danger:#fb7185;

  --shadow-sm: 0 12px 36px rgba(0,0,0,0.35);
  --shadow-md: 0 18px 60px rgba(0,0,0,0.45);
  --ring: 0 0 0 4px rgba(106,167,255,0.18);

  --radius: 18px;
  --radius-sm: 14px;
  --max: 560px;
}

/* ---------- Ambient background (matches your signup.html markup) ---------- */
.auth-bg{
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(40vmax 40vmax at 25% 20%, rgba(47,107,255,0.22), transparent 55%),
    radial-gradient(35vmax 35vmax at 75% 10%, rgba(106,167,255,0.16), transparent 55%),
    radial-gradient(40vmax 40vmax at 70% 75%, rgba(47,107,255,0.12), transparent 60%),
    radial-gradient(42vmax 42vmax at 15% 80%, rgba(106,167,255,0.10), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  filter: saturate(1.1);
}
.auth-bg .orb{
  position: absolute;
  border-radius: 999px;
  filter: blur(10px);
  opacity: .9;
  mix-blend-mode: screen;
}
.orb-a{ width: 420px; height: 420px; left: -120px; top: -140px; background: rgba(47,107,255,0.28); }
.orb-b{ width: 360px; height: 360px; right: -120px; top: -120px; background: rgba(106,167,255,0.22); }
.orb-c{ width: 520px; height: 520px; left: 40%; bottom: -220px; background: rgba(47,107,255,0.16); }
.auth-bg .grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(to right, rgba(148,163,184,0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148,163,184,0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(60% 60% at 50% 30%, black 45%, transparent 75%);
  opacity: .55;
}
.auth-bg .noise{
  position:absolute;
  inset:0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E");
  opacity: .35;
  mix-blend-mode: overlay;
}

/* ---------- Layout ---------- */
.auth-shell{
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 34px 18px 44px;
}

.auth-brand{
  display:flex;
  align-items:center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--text);
  font-weight: 900;
  letter-spacing: -0.02em;
}
.auth-brand .mark{
  width: 34px; height: 34px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow: 0 18px 50px rgba(47,107,255,0.25);
}
.auth-brand .name{ font-size: 1.06rem; }
.auth-brand .chip{
  margin-left: 6px;
  font-size: .72rem;
  font-weight: 850;
  color: rgba(232,238,255,0.92);
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(15,23,42,0.55);
}

/* ---------- Card ---------- */
.auth-card{
  width: min(var(--max), 100%);
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(15,23,42,0.72), rgba(15,23,42,0.52));
  box-shadow: var(--shadow-md);
  padding: 20px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.glow-frame::before{
  content:"";
  position:absolute;
  inset:-2px;
  border-radius: inherit;
  pointer-events:none;
  background:
    radial-gradient(900px 280px at 20% 0%, rgba(47,107,255,0.26), transparent 65%),
    radial-gradient(700px 260px at 85% 0%, rgba(106,167,255,0.18), transparent 60%);
  opacity: .85;
}

/* ---------- Header ---------- */
.auth-head{
  position: relative;
  z-index: 1;
  padding: 6px 4px 12px;
}
.auth-head h1{
  font-size: 1.55rem;
  line-height: 1.12;
  margin: 0;
  letter-spacing: -0.03em;
}
.auth-head p{
  margin-top: 8px;
  color: var(--muted);
  font-weight: 650;
  line-height: 1.35;
}

/* Invite banner (signup has this) */
.invite{
  margin: 10px 4px 14px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(34,197,94,0.25);
  background: rgba(34,197,94,0.10);
  color: rgba(232,238,255,0.92);
  font-weight: 750;
}
.hidden{ display: none !important; }

/* ---------- Form ---------- */
.auth-form{
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  margin-top: 10px;
  padding: 0 4px 2px;
}

.field{ display:grid; gap: 7px; }

label{
  font-size: .86rem;
  font-weight: 800;
  color: rgba(232,238,255,0.92);
  letter-spacing: -0.01em;
}

input, select{
  width: 100%;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(8,12,24,0.55);
  color: var(--text);
  padding: 0 12px;
  font-weight: 650;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06) inset;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
select{ padding-right: 10px; }
input::placeholder{ color: rgba(127,141,178,0.9); }
input:hover, select:hover{ border-color: var(--border-2); }
input:focus, select:focus{
  border-color: color-mix(in srgb, var(--brand) 55%, var(--border));
  box-shadow: var(--ring);
  outline: none;
}

/* signup has 2-col sections (first/last name, etc.) */
.grid2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* password + eye */
.pass{
  display:flex;
  align-items:center;
  gap: 10px;
}
.pass input{ flex: 1; }

.eye{
  height: 44px;
  min-width: 44px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(8,12,24,0.55);
  color: rgba(232,238,255,0.92);
  cursor: pointer;
  font-weight: 900;
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.eye:hover{
  transform: translateY(-1px);
  border-color: var(--border-2);
  box-shadow: 0 10px 30px rgba(0,0,0,0.20);
}
.eye:active{ transform: translateY(0px); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  width: 100%;
  height: 46px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(15,23,42,0.55);
  color: var(--text);
  font-weight: 850;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{
  transform: translateY(-1px);
  border-color: var(--border-2);
  box-shadow: 0 14px 40px rgba(0,0,0,0.28);
}
.btn:active{ transform: translateY(0px); }

.btn-primary{
  background: linear-gradient(135deg, var(--brand), color-mix(in srgb, var(--brand2) 55%, var(--brand)));
  border-color: color-mix(in srgb, var(--brand) 35%, var(--border));
  box-shadow: 0 18px 55px rgba(47,107,255,0.18);
}
.btn-primary:hover{
  box-shadow: 0 22px 70px rgba(47,107,255,0.24);
}

/* Spinner shown in signup button */
.spin{
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: rgba(255,255,255,0.92);
  display:none;
  animation: spin 1s linear infinite;
}
@keyframes spin{ to { transform: rotate(360deg); } }
button[disabled]{ opacity: .55; cursor:not-allowed; transform:none !important; }

/* ---------- Message + footer link ---------- */
.auth-msg{
  margin-top: 8px;
  min-height: 18px;
  color: rgba(232,238,255,0.92);
  font-weight: 700;
}
.auth-msg.error{ color: var(--danger); }

.auth-foot{
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  color: var(--muted);
  font-weight: 650;
  font-size: .95rem;
  margin-top: 4px;
}
.auth-foot a{
  color: rgba(232,238,255,0.92);
  font-weight: 850;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}
.auth-foot a:hover{
  background: rgba(15,23,42,0.45);
  border-color: var(--border);
}

/* ---------- Responsive ---------- */
@media (max-width: 620px){
  .grid2{ grid-template-columns: 1fr; }
  .auth-card{ padding: 18px; }
}