/* =========================================================
   AI VOICE RECEPTIONIST — BOOK FREE DEMO MODAL
   Dark glassmorphism UI, blue/purple gradient theme
   ========================================================= */

/* ---------- Design tokens (CSS variables) ---------- */
:root {
  /* Core palette */
  --color-bg-page: #05060a;
  --color-modal-bg: rgba(20, 20, 32, 0.72);
  --color-modal-border: rgba(255, 255, 255, 0.08);
  --color-overlay: rgba(5, 6, 10, 0.75);

  --color-text-primary: #f5f6fa;
  --color-text-secondary: #a4a8bd;
  --color-text-muted: #74788d;

  /* Gradient accents */
  --gradient-primary: linear-gradient(135deg, #6d5bff 0%, #8f6bff 45%, #3b82f6 100%);
  --gradient-glow-1: #6d5bff;
  --gradient-glow-2: #3b82f6;
  --color-accent: #8f6bff;
  --color-accent-blue: #3b82f6;

  /* Status colors */
  --color-success: #34d399;
  --color-success-bg: rgba(52, 211, 153, 0.12);
  --color-error: #f87171;
  --color-error-bg: rgba(248, 113, 113, 0.12);

  /* Radii & spacing */
  --radius-modal: 20px;
  --radius-input: 12px;
  --radius-btn: 12px;

  /* Motion */
  --transition-fast: 0.18s ease;
  --transition-medium: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

/* ---------- Demo page shell (only for standalone preview) ---------- */
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 20% 20%, #131327 0%, #05060a 60%);
  color: var(--color-text-primary);
}

.demo-page {
  max-width: 640px;
  margin: 0 auto;
  padding: 120px 24px;
  text-align: center;
}

.demo-page h1 {
  font-size: 2.25rem;
  margin-bottom: 12px;
}

.demo-page p {
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.btn-demo-trigger {
  border: none;
  cursor: pointer;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  border-radius: var(--radius-btn);
  background: var(--gradient-primary);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 8px 24px rgba(109, 91, 255, 0.35);
}

.btn-demo-trigger:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(109, 91, 255, 0.5);
}

/* =========================================================
   OVERLAY — dark background with blur, click-outside closes
   ========================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;

  background: var(--color-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);

  /* Hidden by default */
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-medium), visibility var(--transition-medium);
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

/* =========================================================
   MODAL CARD — glassmorphism + gradient glow border
   ========================================================= */
.modal {
  position: relative;
  width: 100%;
  max-width: 460px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;

  border-radius: var(--radius-modal);
  background: var(--color-modal-bg);
  border: 1px solid var(--color-modal-border);

  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);

  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.03),
    0 25px 60px rgba(0, 0, 0, 0.55),
    0 0 80px -20px var(--gradient-glow-1);

  /* Fade + scale animation */
  transform: scale(0.94) translateY(8px);
  opacity: 0;
  transition: transform var(--transition-medium), opacity var(--transition-medium);
}

.modal-scroll-area {
  overflow-y: auto;
  padding: 36px 32px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.modal-overlay.is-open .modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}

/* Ambient gradient glow behind the card */
.modal::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(109, 91, 255, 0.6), rgba(59, 130, 246, 0.4) 60%, transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: -1;
}

/* Custom scrollbar for modal (webkit) */
.modal-scroll-area::-webkit-scrollbar {
  width: 6px;
}
.modal-scroll-area::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
}

/* ---------- Close button ---------- */
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--color-text-secondary);
  background: rgba(255, 255, 255, 0.05);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
  transform: rotate(90deg);
}

.modal-close:focus-visible {
  outline: 2px solid var(--color-accent-blue);
  outline-offset: 2px;
}

/* ---------- Badge ---------- */
.modal-badge {
  display: inline-block;
  padding: 6px 14px;
  margin-bottom: 16px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #cfd0ff;
  background: rgba(109, 91, 255, 0.15);
  border: 1px solid rgba(143, 107, 255, 0.35);
  border-radius: 999px;
}

/* ---------- Headline & description ---------- */
.modal-headline {
  margin: 0 0 12px;
  font-size: 1.5rem;
  line-height: 1.3;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.modal-description {
  margin: 0 0 24px;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
}

/* ---------- Form ---------- */
.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.required {
  color: var(--color-accent-blue);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-input);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.form-group input::placeholder {
  color: var(--color-text-muted);
}

.form-group input:hover,
.form-group select:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(109, 91, 255, 0.2);
}

/* Invalid state, applied via JS */
.form-group.has-error input,
.form-group.has-error select {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.15);
}

.field-error {
  min-height: 14px;
  font-size: 0.75rem;
  color: var(--color-error);
}

/* Dropdown option styling (limited browser support, best-effort) */
.form-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a4a8bd' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-group select option {
  background: #14141f;
  color: var(--color-text-primary);
}

/* ---------- Trust checklist ---------- */
.trust-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.trust-list li {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ---------- Status banner ---------- */
.form-status {
  display: none;
  padding: 10px 14px;
  font-size: 0.82rem;
  border-radius: var(--radius-input);
}

.form-status.is-success {
  display: block;
  color: var(--color-success);
  background: var(--color-success-bg);
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.form-status.is-error {
  display: block;
  color: var(--color-error);
  background: var(--color-error-bg);
  border: 1px solid rgba(248, 113, 113, 0.3);
}

/* ---------- Submit button ---------- */
.btn-submit {
  position: relative;
  margin-top: 8px;
  padding: 14px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-btn);
  background: var(--gradient-primary);
  box-shadow: 0 8px 24px rgba(109, 91, 255, 0.35);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(109, 91, 255, 0.5);
}

.btn-submit:focus-visible {
  outline: 2px solid var(--color-accent-blue);
  outline-offset: 2px;
}

.btn-submit:disabled {
  cursor: not-allowed;
  opacity: 0.75;
  transform: none;
}

/* Spinner, hidden unless button has .is-loading */
.btn-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn-submit.is-loading .btn-spinner {
  display: inline-block;
}

.btn-submit.is-loading .btn-text::after {
  content: "Submitting...";
}

.btn-submit.is-loading .btn-text {
  font-size: 0;
}

.btn-submit.is-loading .btn-text::after {
  font-size: 0.95rem;
}

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

/* =========================================================
   RESPONSIVE — mobile
   ========================================================= */
@media (max-width: 480px) {
  .modal {
    max-width: 100%;
    border-radius: 18px;
    padding: 0;
  }

  .modal-scroll-area {
    padding: 28px 20px 24px;
  }

  .modal-headline {
    font-size: 1.3rem;
  }

  .modal-description {
    font-size: 0.85rem;
  }

  .trust-list {
    flex-direction: column;
    gap: 6px;
  }
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .modal-overlay,
  .modal,
  .btn-demo-trigger,
  .btn-submit,
  .modal-close {
    transition: none;
    animation: none;
  }
}