/* =============================================
   ExamNova — Auth Page (Login / Register)
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  --accent:      #4F46E5;
  --accent-h:    #4338CA;
  --accent-l:    #EEF2FF;
  --text:        #0F172A;
  --text-2:      #475569;
  --text-3:      #94A3B8;
  --border:      #E2E8F0;
  --card:        #FFFFFF;
  --bg:          #F1F5F9;
  --success:     #10B981;
  --danger:      #EF4444;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;font-family:'Outfit',sans-serif}

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #1E1B4B 0%, #312E81 40%, #4F46E5 100%);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 76px 20px 40px;
}

/* ── Brand Strip ── */
.auth-brand {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  display: flex;
  align-items: center;
  padding: 0 30px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.brand-logo {
  font-size: 1.2rem;
  font-weight: 800;
  color: white;
  letter-spacing: -0.3px;
}
.brand-logo span { color: rgba(255,255,255,0.5); }
.brand-tagline {
  margin-left: auto;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

/* ── Auth Card ── */
.auth-card {
  width: 100%;
  max-width: 460px;
  background: var(--card);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  overflow: hidden;
  margin-top: 56px;
}

.auth-header {
  padding: 28px 32px 0;
  text-align: center;
}
.auth-logo-mark {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  font-size: 1.4rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
  letter-spacing: -1px;
}
.auth-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.3px;
}
.auth-sub {
  font-size: 0.875rem;
  color: var(--text-2);
  margin-top: 4px;
}

/* ── Tabs ── */
.auth-tabs {
  display: flex;
  gap: 8px;
  padding: 20px 32px 0;
}
.auth-tab {
  flex: 1;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.15s;
}
.auth-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* ── Form Body ── */
.auth-body { padding: 24px 32px 32px; }

.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 5px;
}
.input-wrap { position: relative; }
.form-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
}
.toggle-pass {
  position: absolute; right: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  cursor: pointer;
  font-size: 0.85rem;
  background: none; border: none;
  padding: 0;
}

/* OTP Row */
.otp-row {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}
.otp-row .form-input { flex: 1; }
.btn-otp {
  padding: 10px 14px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}
.btn-otp:hover { background: var(--accent-h); }
.btn-otp:disabled { opacity: 0.5; cursor: not-allowed; }
.otp-verified { color: var(--success); font-size: 0.78rem; font-weight: 600; margin-top: 4px; display: none; }
.otp-verified.show { display: flex; align-items: center; gap: 4px; }

/* Submit Button */
.btn-submit {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 4px;
}
.btn-submit:hover { background: var(--accent-h); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* Footer Links */
.auth-footer {
  text-align: center;
  padding-top: 16px;
  font-size: 0.85rem;
  color: var(--text-2);
  border-top: 1px solid var(--border);
  margin-top: 18px;
}
.auth-footer a, .auth-footer span {
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.auth-footer a:hover, .auth-footer span:hover { text-decoration: underline; }

/* Forgot password view */
.forgot-view { display: none; padding: 24px 32px 32px; }
.forgot-view.active { display: block; }
.auth-body.hidden { display: none; }

/* Spinner */
.spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Error / hint text */
.field-error { color: var(--danger); font-size: 0.78rem; margin-top: 4px; display: none; }
.field-error.show { display: block; }