/* ==========================================================================
   Modal Styles: Overlay, Container, Forms, States
   ========================================================================== */

/* ── Overlay ── */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(13, 31, 24, 0.40);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-out),
              visibility var(--duration-base) var(--ease-out);
}

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

/* ── Container ── */

.modal {
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur-heavy));
  -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg), 0 0 80px rgba(91, 223, 176, 0.08);
  transform: translateY(20px) scale(0.97);
  opacity: 0;
  transition: transform var(--duration-slow) var(--ease-spring),
              opacity var(--duration-base) var(--ease-out);
}

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

/* Scrollbar styling */
.modal::-webkit-scrollbar {
  width: 6px;
}

.modal::-webkit-scrollbar-track {
  background: transparent;
}

.modal::-webkit-scrollbar-thumb {
  background: rgba(13, 31, 24, 0.12);
  border-radius: 3px;
}

/* ── Header ── */

.modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.modal__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.modal__subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

.modal__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--glass-bg-light);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.modal__close:hover {
  background: var(--surface-elevated);
  color: var(--text-primary);
}

.modal__close svg {
  width: 18px;
  height: 18px;
}

/* ── Plan badge ── */

.modal__plan-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  background: rgba(91, 223, 176, 0.10);
  border: 1px solid rgba(91, 223, 176, 0.25);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--accent-dim);
  margin-bottom: var(--space-md);
}

/* ── Form layout ── */

.modal__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* ── Input & Label ── */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--glass-bg-light);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-tertiary);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='%230D1F18' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  background-size: 16px;
  padding-right: 2.5rem;
  cursor: pointer;
}

/* Validation error state */
.form-group--error input,
.form-group--error textarea,
.form-group--error select {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--error);
  display: none;
}

.form-group--error .form-error {
  display: block;
}

/* ── Password wrapper & toggle ── */

.password-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.password-wrapper input {
  width: 100%;
  padding-right: 2.8rem;
}

.password-toggle {
  position: absolute;
  right: 0.6rem;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out);
  padding: 0;
}

.password-toggle:hover {
  color: var(--text-secondary);
}

.password-toggle svg {
  width: 18px;
  height: 18px;
}

.password-toggle__hide {
  display: none;
}

.password-toggle.active .password-toggle__show {
  display: none;
}

.password-toggle.active .password-toggle__hide {
  display: block;
}

/* ── Password strength indicator ── */

.password-strength {
  display: none;
  align-items: center;
  gap: var(--space-xs);
}

.password-strength.visible {
  display: flex;
}

.password-strength__bar {
  flex: 1;
  height: 3px;
  border-radius: 2px;
  background: rgba(13, 31, 24, 0.08);
  overflow: hidden;
  position: relative;
}

.password-strength__bar::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: var(--strength, 0%);
  border-radius: 2px;
  background: var(--strength-color, rgba(13, 31, 24, 0.12));
  transition: width var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out);
}

.password-strength__label {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--strength-color, var(--text-tertiary));
  white-space: nowrap;
  min-width: 3rem;
  text-align: right;
  transition: color var(--duration-base) var(--ease-out);
}

/* ── Validation success state ── */

.form-group--valid input,
.form-group--valid textarea,
.form-group--valid select {
  border-color: var(--success);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12);
}

/* ── Toggle switch (Invoice) ── */

.form-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  user-select: none;
  padding: var(--space-sm) 0;
}

.form-toggle__track {
  width: 44px;
  height: 24px;
  border-radius: var(--radius-full);
  background: rgba(13, 31, 24, 0.12);
  position: relative;
  transition: background var(--duration-base) var(--ease-out);
  flex-shrink: 0;
}

.form-toggle__thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-base) var(--ease-spring);
}

.form-toggle input {
  display: none;
}

.form-toggle input:checked ~ .form-toggle__track {
  background: var(--accent);
}

.form-toggle input:checked ~ .form-toggle__track .form-toggle__thumb {
  transform: translateX(20px);
}

.form-toggle__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

/* ── Fiscal fields (collapsible) ── */

.form-fiscal {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--duration-slow) var(--ease-out),
              opacity var(--duration-base) var(--ease-out),
              margin var(--duration-base) var(--ease-out);
  margin-top: 0;
}

.form-fiscal.active {
  max-height: 600px;
  opacity: 1;
  margin-top: var(--space-md);
}

.form-fiscal .form-group--full {
  grid-column: span 2;
}

/* ── Add-on checkbox ── */

.form-addon {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: rgba(91, 223, 176, 0.05);
  border: 1px solid rgba(91, 223, 176, 0.15);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.form-addon:has(input:checked) {
  border-color: var(--accent);
  background: rgba(91, 223, 176, 0.08);
}

.form-addon__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
}

.form-addon__checkbox {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 2px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
}

.form-addon input {
  display: none;
}

.form-addon input:checked ~ .form-addon__header .form-addon__checkbox {
  background: var(--accent);
  border-color: var(--accent);
}

.form-addon__checkbox svg {
  width: 14px;
  height: 14px;
  stroke: var(--primary);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.form-addon input:checked ~ .form-addon__header .form-addon__checkbox svg {
  opacity: 1;
}

.form-addon__info {
  flex: 1;
}

.form-addon__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

.form-addon__price {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--accent-dim);
  display: block;
  margin-top: 2px;
}

.form-addon__desc {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-sm);
  line-height: 1.4;
}

.form-addon__download {
  display: none;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  font-size: var(--text-xs);
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.form-addon__download:hover {
  text-decoration: underline;
}

.form-addon__download svg {
  width: 14px;
  height: 14px;
}

.form-addon input:checked ~ .form-addon__download {
  display: inline-flex;
}

/* ── Submit button ── */

.modal__submit {
  width: 100%;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: var(--primary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  box-shadow: 0 4px 20px rgba(91, 223, 176, 0.3);
  margin-top: var(--space-sm);
}

.modal__submit:hover {
  background: #6fe8bf;
  box-shadow: 0 6px 30px rgba(91, 223, 176, 0.4);
  transform: translateY(-1px);
}

.modal__submit:active {
  transform: scale(0.97);
}

.modal__submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

/* Loading spinner */
.modal__submit.loading .modal__submit-text {
  opacity: 0;
}

.modal__submit-spinner {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
}

.modal__submit.loading .modal__submit-spinner {
  display: flex;
}

.modal__submit-spinner::after {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid rgba(245, 251, 248, 0.3);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ── Success state ── */

.modal__success {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-xl) 0;
  gap: var(--space-md);
}

.modal__success.active {
  display: flex;
}

.modal__success-check {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(91, 223, 176, 0.10);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal__success-check svg {
  width: 32px;
  height: 32px;
  stroke: var(--accent);
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: checkDraw 0.5s var(--ease-out) 0.2s forwards;
}

@keyframes checkDraw {
  to { stroke-dashoffset: 0; }
}

.modal__success-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.modal__success-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* ── Form hidden when success ── */

.modal.success .modal__form,
.modal.success .modal__plan-badge {
  display: none;
}

.modal.success .modal__success {
  display: flex;
}

/* ── Mobile bottom-sheet (<480px) ── */

@media (max-width: 480px) {
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }

  .modal {
    max-width: 100%;
    max-height: 92vh;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--space-lg);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-fiscal {
    grid-template-columns: 1fr;
  }

  .form-fiscal .form-group--full {
    grid-column: span 1;
  }
}

/* ── Tablet ── */

@media (max-width: 768px) {
  .modal {
    max-width: 480px;
  }
}