/* ============================================================
   SmartForm Pro — Frontend Styles
   Premium, dark-edged glassmorphism aesthetic
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

:root {
  --sfp-font:       'DM Sans', sans-serif;
  --sfp-accent:     #6C63FF;
  --sfp-accent-2:   #A78BFA;
  --sfp-success:    #10B981;
  --sfp-error:      #EF4444;
  --sfp-bg:         #0F0F1A;
  --sfp-surface:    rgba(255,255,255,.04);
  --sfp-border:     rgba(255,255,255,.10);
  --sfp-text:       #E8E8F0;
  --sfp-muted:      rgba(232,232,240,.45);
  --sfp-radius:     14px;
  --sfp-radius-sm:  8px;
  --sfp-shadow:     0 8px 32px rgba(0,0,0,.45);
  --sfp-transition: .22s cubic-bezier(.4,0,.2,1);
}

/* Wrapper */
.sfp-wrapper {
  font-family: var(--sfp-font);
  background: var(--sfp-bg);
  border: 1px solid var(--sfp-border);
  border-radius: var(--sfp-radius);
  padding: 2.5rem 2.75rem;
  box-shadow: var(--sfp-shadow);
  position: relative;
  overflow: hidden;
  max-width: 680px;
}

.sfp-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 40% at 70% -10%, rgba(108,99,255,.18) 0%, transparent 70%);
  pointer-events: none;
}

/* Heading */
.sfp-form-title {
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--sfp-text);
  margin: 0 0 .35rem;
  letter-spacing: -.015em;
}
.sfp-form-subtitle {
  color: var(--sfp-muted);
  font-size: .875rem;
  margin: 0 0 2rem;
}

/* Grid */
.sfp-form .sfp-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.sfp-form .sfp-row.sfp-full { grid-template-columns: 1fr; }

/* Field group */
.sfp-field {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  margin-bottom: 1.25rem;
}
.sfp-field:last-child { margin-bottom: 0; }

.sfp-label {
  font-size: .8rem;
  font-weight: 500;
  color: var(--sfp-muted);
  letter-spacing: .04em;
  text-transform: uppercase;
}
.sfp-required { color: var(--sfp-accent-2); margin-left: 2px; }

/* Inputs */
.sfp-input,
.sfp-textarea,
.sfp-select {
  font-family: var(--sfp-font);
  font-size: .9375rem;
  color: var(--sfp-text);
  background: var(--sfp-surface);
  border: 1px solid var(--sfp-border);
  border-radius: var(--sfp-radius-sm);
  padding: .7rem 1rem;
  transition: border-color var(--sfp-transition), box-shadow var(--sfp-transition), background var(--sfp-transition);
  outline: none;
  width: 100%;
  box-sizing: border-box;
  -webkit-appearance: none;
}
.sfp-textarea { resize: vertical; min-height: 120px; }
.sfp-select { cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23a0a0b8' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .85rem center; padding-right: 2.5rem; }

.sfp-input::placeholder,
.sfp-textarea::placeholder { color: rgba(232,232,240,.25); }

.sfp-input:focus,
.sfp-textarea:focus,
.sfp-select:focus {
  border-color: var(--sfp-accent);
  background: rgba(108,99,255,.06);
  box-shadow: 0 0 0 3px rgba(108,99,255,.18);
}

/* Radio / Checkbox group */
.sfp-options { display: flex; flex-wrap: wrap; gap: .6rem; }
.sfp-option-item { display: flex; align-items: center; gap: .45rem; cursor: pointer; }
.sfp-option-item input { accent-color: var(--sfp-accent); width: 16px; height: 16px; cursor: pointer; }
.sfp-option-item span { font-size: .9rem; color: var(--sfp-text); }

/* Field error state */
.sfp-field.has-error .sfp-input,
.sfp-field.has-error .sfp-textarea,
.sfp-field.has-error .sfp-select {
  border-color: var(--sfp-error);
  box-shadow: 0 0 0 3px rgba(239,68,68,.15);
}
.sfp-field-error {
  font-size: .78rem;
  color: var(--sfp-error);
  display: flex;
  align-items: center;
  gap: .3rem;
}
.sfp-field-error::before { content: '⚠'; }

/* Honeypot */
.sfp-honeypot { display: none !important; }

/* Submit */
.sfp-submit-wrap { margin-top: 1.75rem; }
.sfp-submit {
  font-family: var(--sfp-font);
  font-size: .9375rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--sfp-accent) 0%, #8B5CF6 100%);
  border: none;
  border-radius: var(--sfp-radius-sm);
  padding: .8rem 2.25rem;
  cursor: pointer;
  transition: opacity var(--sfp-transition), transform var(--sfp-transition), box-shadow var(--sfp-transition);
  box-shadow: 0 4px 18px rgba(108,99,255,.45);
  letter-spacing: -.01em;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}
.sfp-submit:hover { opacity: .88; transform: translateY(-1px); box-shadow: 0 6px 24px rgba(108,99,255,.55); }
.sfp-submit:active { transform: translateY(0); }
.sfp-submit:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.sfp-submit .sfp-spinner { width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.3); border-top-color: #fff; border-radius: 50%; animation: sfp-spin .7s linear infinite; display: none; }
.sfp-submit.loading .sfp-spinner { display: block; }
.sfp-submit.loading .sfp-btn-text { opacity: .7; }

@keyframes sfp-spin { to { transform: rotate(360deg); } }

/* Messages */
.sfp-alert {
  border-radius: var(--sfp-radius-sm);
  padding: 1rem 1.25rem;
  font-size: .9rem;
  margin-top: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  animation: sfp-fadein .3s ease;
}
@keyframes sfp-fadein { from { opacity:0; transform:translateY(4px); } to { opacity:1; transform:none; } }

.sfp-alert-success {
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
  color: #6EE7B7;
}
.sfp-alert-error {
  background: rgba(239,68,68,.08);
  border: 1px solid rgba(239,68,68,.25);
  color: #FCA5A5;
}
.sfp-alert-icon { font-size: 1.1rem; line-height: 1; }

/* Responsive */
@media (max-width: 540px) {
  .sfp-wrapper { padding: 1.75rem 1.25rem; }
  .sfp-form .sfp-row { grid-template-columns: 1fr; }
}

/* ---- File Upload ---- */
.sfp-file-input { display: none; }
.sfp-file-wrap { display: flex; align-items: center; gap: 10px; }
.sfp-file-btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  background: rgba(108,99,255,.12); border: 1px dashed rgba(108,99,255,.4);
  color: var(--sfp-accent); border-radius: var(--sfp-radius-sm);
  padding: .55rem 1rem; font-size: .85rem; font-weight: 500;
  transition: background var(--sfp-transition), border-color var(--sfp-transition);
  white-space: nowrap;
}
.sfp-file-btn:hover { background: rgba(108,99,255,.22); border-color: var(--sfp-accent); }
.sfp-file-label { font-size: .82rem; color: var(--sfp-muted); }
.sfp-file-hint  { font-size: .75rem; color: var(--sfp-muted); margin-top: 4px; display: block; }

/* ---- Char counter ---- */
.sfp-char-counter {
  font-size: .72rem; color: var(--sfp-muted); display: block;
  text-align: right; margin-top: 4px;
}
.sfp-char-counter.near-limit { color: var(--sfp-accent-2); }

/* ---- Multi-column rows (generated HTML) ---- */
.sfp-row { display: grid; gap: 1.1rem; margin-bottom: 1.1rem; }
.sfp-row-half   { grid-template-columns: 1fr 1fr; }
.sfp-row-thirds { grid-template-columns: 1fr 1fr 1fr; }
.sfp-row .sfp-field { margin-bottom: 0; }

@media (max-width: 560px) {
  .sfp-row-half, .sfp-row-thirds { grid-template-columns: 1fr; }
}