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

:root {
  --navy:    #0d2137;
  --navy-dk: #081624;
  --navy-lt: #163352;
  --amber:   #f59e0b;
  --green:   #059669;
  --red:     #dc2626;
  --text:    #111827;
  --muted:   #6b7280;
  --border:  #e5e7eb;
  --light:   #f9fafb;
  --white:   #ffffff;
  --r:       10px;
  --shadow:  0 2px 8px rgba(0,0,0,.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,.1);
}

html, body { height: 100%; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Two-col layout ──────────────────────────────────────────────────────── */
.signup-page {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

/* ── Left: form col ──────────────────────────────────────────────────────── */
.signup-form-col {
  padding: 40px 56px;
  display: flex;
  flex-direction: column;
  background: var(--white);
  overflow-y: auto;
}

.signup-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 40px;
  transition: color .15s;
}
.signup-back:hover { color: var(--text); }

.signup-form-wrap { max-width: 440px; }

.signup-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 28px;
  text-decoration: none;
}
.signup-logo span:first-child { font-size: 22px; }
.signup-logo-text { display: flex; flex-direction: column; line-height: 1; }
.signup-logo-name { font-size: 20px; font-weight: 800; color: var(--navy); letter-spacing: -.3px; }
.signup-logo-by   { font-size: 9px; font-weight: 500; color: var(--amber); letter-spacing: .05em; text-transform: uppercase; margin-top: 2px; text-decoration: none; transition: color .15s; }
a.signup-logo-by:hover { color: #fbbf24; }

/* Password strength indicator */
.pw-strength { height: 3px; border-radius: 3px; background: var(--border); margin-top: 6px; overflow: hidden; transition: opacity .2s; }
.pw-strength-bar { height: 100%; width: 0; border-radius: 3px; transition: width .3s ease, background .3s ease; }
.pw-strength-bar.weak { width: 33%; background: var(--red); }
.pw-strength-bar.medium { width: 66%; background: var(--amber); }
.pw-strength-bar.strong { width: 100%; background: var(--green); }

.signup-h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -.4px;
  margin-bottom: 8px;
  line-height: 1.2;
}
.signup-sub {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 32px;
}

/* ── Form fields ─────────────────────────────────────────────────────────── */
.sf-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}
.sf-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 16px;
}
.sf-row .sf-field { margin-bottom: 0; }

.sf-lbl {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 4px;
}
.sf-opt { font-weight: 400; color: var(--muted); }

.sf-inp {
  padding: 10px 13px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--light);
  outline: none;
  transition: border-color .15s, box-shadow .15s, background .15s;
  width: 100%;
}
.sf-inp::placeholder { color: #9ca3af; }
.sf-inp:focus {
  border-color: var(--navy);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(13,33,55,.1);
}
.sf-inp.inp-error {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(220,38,38,.1);
}

/* ── Error ───────────────────────────────────────────────────────────────── */
.sf-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 8px;
  padding: 11px 14px;
  font-size: 13.5px;
  color: #b91c1c;
  margin-bottom: 16px;
}
.sf-error.hidden { display: none; }

/* ── Submit ──────────────────────────────────────────────────────────────── */
.sf-submit {
  width: 100%;
  padding: 13px 20px;
  background: var(--navy);
  color: var(--white);
  border: none;
  border-radius: 9px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(13,33,55,.25);
  margin-bottom: 14px;
}
.sf-submit:hover:not(:disabled) {
  background: var(--navy-lt);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(13,33,55,.3);
}
.sf-submit:disabled { opacity: .6; cursor: not-allowed; }

.sf-spinner {
  width: 15px; height: 15px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .65s linear infinite;
}
.sf-spinner.hidden { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.sf-terms {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}
.sf-terms a { color: var(--navy); text-decoration: underline; }

/* ── Right: proof col ────────────────────────────────────────────────────── */
.signup-proof-col {
  background: linear-gradient(150deg, var(--navy-dk) 0%, var(--navy) 60%, var(--navy-lt) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 48px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.proof-inner { max-width: 420px; width: 100%; }

.proof-headline {
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.3;
  letter-spacing: -.3px;
  margin-bottom: 28px;
}

.proof-checks {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 36px;
}
.proof-check {
  font-size: 14.5px;
  color: rgba(255,255,255,.85);
  display: flex;
  align-items: center;
  gap: 8px;
}

.proof-quotes {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}
.proof-quote {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r);
  padding: 18px 20px;
}
.proof-stars { color: var(--amber); font-size: 14px; letter-spacing: 2px; margin-bottom: 8px; }
.proof-quote p {
  font-size: 14px;
  color: rgba(255,255,255,.85);
  line-height: 1.6;
  font-style: italic;
  margin-bottom: 10px;
}
.proof-attr { font-size: 12px; color: rgba(255,255,255,.45); font-weight: 600; }

.proof-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.proof-stat { display: flex; flex-direction: column; align-items: center; text-align: center; }
.ps-num { font-size: 20px; font-weight: 800; color: var(--white); line-height: 1.15; letter-spacing: -.3px; }
.ps-lbl { font-size: 11px; color: rgba(255,255,255,.45); margin-top: 3px; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .signup-page { grid-template-columns: 1fr; }
  .signup-proof-col { display: none; }
  .signup-form-col { padding: 32px 24px; }
  .signup-form-wrap { max-width: 100%; }
  .sf-row { grid-template-columns: 1fr; gap: 0; }
}