/* ============================================================
   configuration.css — Multi-Step Configuration Form
   TM Studio — Premium Glassmorphic Dark Theme
   ============================================================ */

/* ── Page Hero ────────────────────────────────────────────── */
.configuration-page {
  background-color: var(--background-color);
}

.config-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent-color), var(--background-color) 82%) 0%,
    var(--background-color) 65%
  );
  border-bottom: 1px solid color-mix(in srgb, var(--accent-color), transparent 75%);
  padding: 72px 0 64px;
}

/* Animated background particles */
.config-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 80% 50%,
      color-mix(in srgb, var(--accent-color), transparent 88%) 0%,
      transparent 70%),
    radial-gradient(ellipse 300px 300px at 15% 80%,
      color-mix(in srgb, var(--accent-color), transparent 93%) 0%,
      transparent 70%);
  pointer-events: none;
}

.config-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in srgb, var(--accent-color), transparent 50%),
    transparent
  );
}

.config-hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent-color);
  margin-bottom: 20px;
  padding: 7px 16px;
  border-radius: 50px;
  border: 1px solid color-mix(in srgb, var(--accent-color), transparent 55%);
  background: color-mix(in srgb, var(--accent-color), transparent 87%);
  backdrop-filter: blur(8px);
}

.config-hero-label i {
  font-size: 0.9rem;
  animation: spin-slow 8s linear infinite;
}

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

.config-hero-title {
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  font-weight: 800;
  color: var(--heading-color);
  line-height: 1.12;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.config-hero-title .text-accent {
  color: var(--accent-color);
  position: relative;
}

.config-hero-title .text-accent::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), transparent);
  border-radius: 2px;
  opacity: 0.6;
}

.config-hero-sub {
  color: color-mix(in srgb, var(--default-color), transparent 28%);
  font-size: 1.08rem;
  max-width: 520px;
  line-height: 1.75;
  margin: 0;
}

.config-hero-badges {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.config-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: color-mix(in srgb, var(--surface-color), transparent 15%);
  border: 1px solid color-mix(in srgb, var(--accent-color), transparent 72%);
  border-radius: 50px;
  padding: 12px 22px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--default-color);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.config-hero-badge:hover {
  transform: translateX(-4px);
  border-color: color-mix(in srgb, var(--accent-color), transparent 40%);
}

.config-hero-badge i {
  color: var(--accent-color);
  font-size: 1.1rem;
}

/* ── Section & Wrapper ────────────────────────────────────── */
.configuration.section {
  padding: 70px 0 90px;
  background-color: var(--background-color);
  position: relative;
}

.configuration.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle,
    color-mix(in srgb, var(--accent-color), transparent 93%) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.config-wrapper {
  background: color-mix(in srgb, var(--surface-color), transparent 5%);
  padding: 52px 56px;
  border-radius: 24px;
  border: 1px solid color-mix(in srgb, var(--default-color), transparent 88%);
  box-shadow:
    0 32px 80px rgba(0, 0, 0, 0.45),
    0 0 0 1px color-mix(in srgb, var(--accent-color), transparent 92%),
    inset 0 1px 0 color-mix(in srgb, var(--default-color), transparent 92%);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.config-wrapper::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle,
    color-mix(in srgb, var(--accent-color), transparent 78%) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.config-wrapper::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle,
    color-mix(in srgb, var(--accent-color), transparent 88%) 0%,
    transparent 70%
  );
  pointer-events: none;
}

/* ── Step Tracker ─────────────────────────────────────────── */
.step-tracker {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 36px;
  border-bottom: 1px solid color-mix(in srgb, var(--default-color), transparent 90%);
  margin-bottom: 40px;
}

.step-track-bar {
  position: absolute;
  top: 22px;
  left: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--accent-color),
    color-mix(in srgb, var(--accent-color), #00e5ff 55%)
  );
  z-index: 2;
  width: 0%;
  transition: width 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2px;
  box-shadow: 0 0 10px color-mix(in srgb, var(--accent-color), transparent 45%);
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  width: 100%;
  position: relative;
  z-index: 3;
}

/* Grey track behind steps */
.progress-steps::before {
  content: '';
  position: absolute;
  top: 22px;
  left: 0;
  right: 0;
  height: 3px;
  background: color-mix(in srgb, var(--default-color), transparent 88%);
  z-index: 0;
  border-radius: 2px;
}

.progress-steps .step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: default;
  z-index: 1;
}

.progress-steps .step i {
  width: 44px;
  height: 44px;
  background: color-mix(in srgb, var(--surface-color), var(--background-color) 40%);
  border: 2px solid color-mix(in srgb, var(--default-color), transparent 80%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: color-mix(in srgb, var(--default-color), transparent 50%);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-steps .step-label {
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--default-color), transparent 58%);
  transition: color 0.3s ease;
}

.progress-steps .step.active i {
  border-color: var(--accent-color);
  background: var(--accent-color);
  color: #fff;
  box-shadow:
    0 0 0 4px color-mix(in srgb, var(--accent-color), transparent 72%),
    0 0 20px color-mix(in srgb, var(--accent-color), transparent 42%);
  transform: scale(1.08);
}

.progress-steps .step.active .step-label {
  color: var(--accent-color);
  font-weight: 800;
}

.progress-steps .step.completed i {
  border-color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color), transparent 22%);
  color: var(--accent-color);
}

.progress-steps .step.completed .step-label {
  color: color-mix(in srgb, var(--accent-color), transparent 18%);
}

/* ── Form Steps ───────────────────────────────────────────── */
.form-step {
  display: none;
  animation: stepFadeIn 0.45s ease forwards;
}

.form-step.active {
  display: block;
}

@keyframes stepFadeIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Step Header ──────────────────────────────────────────── */
.step-header {
  display: flex;
  align-items: flex-start;
  gap: 22px;
  margin-bottom: 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid color-mix(in srgb, var(--default-color), transparent 92%);
}

.step-num {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1;
  color: color-mix(in srgb, var(--accent-color), transparent 55%);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  margin-top: 0;
  letter-spacing: -2px;
  text-shadow: 0 0 40px color-mix(in srgb, var(--accent-color), transparent 60%);
}

.step-header h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--heading-color);
  margin: 0 0 8px;
  letter-spacing: -0.3px;
}

.step-desc {
  color: color-mix(in srgb, var(--default-color), transparent 38%);
  font-size: 0.92rem;
  margin: 0;
  line-height: 1.65;
}

/* ── Service Cards ────────────────────────────────────────── */
.service-card {
  cursor: pointer;
  width: 100%;
  display: block;
}

.service-card input {
  display: none;
}

.service-card .card-content {
  background: color-mix(in srgb, var(--background-color), transparent 15%);
  border: 1.5px solid color-mix(in srgb, var(--default-color), transparent 85%);
  border-radius: 16px;
  padding: 28px 22px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.service-card .card-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.service-card .card-content i {
  font-size: 2.4rem;
  color: var(--accent-color);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.service-card .card-content span {
  font-weight: 700;
  font-size: 1rem;
  color: var(--heading-color);
}

.service-card .card-content small {
  font-size: 0.78rem;
  color: color-mix(in srgb, var(--default-color), transparent 45%);
  line-height: 1.55;
}

.service-card:hover .card-content {
  border-color: color-mix(in srgb, var(--accent-color), transparent 40%);
  background: color-mix(in srgb, var(--accent-color), transparent 90%);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.service-card:hover .card-content::before {
  opacity: 1;
}

.service-card:hover .card-content i {
  transform: scale(1.2) translateY(-2px);
}

.service-card input:checked + .card-content {
  background: color-mix(in srgb, var(--accent-color), transparent 82%);
  border-color: var(--accent-color);
  box-shadow:
    0 0 28px color-mix(in srgb, var(--accent-color), transparent 55%),
    inset 0 1px 0 color-mix(in srgb, var(--accent-color), white 30%);
  transform: translateY(-2px);
}

.service-card input:checked + .card-content::before {
  opacity: 1;
}

/* ── Custom Solutions Grid ────────────────────────────────── */
.custom-solutions-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.custom-option-card {
  cursor: pointer;
  display: block;
}

.custom-option-card input {
  display: none;
}

.custom-option-content {
  display: grid;
  grid-template-columns: 56px 1fr 34px;
  align-items: center;
  gap: 18px;
  background: color-mix(in srgb, var(--background-color), transparent 15%);
  border: 1.5px solid color-mix(in srgb, var(--default-color), transparent 85%);
  border-radius: 14px;
  padding: 20px 22px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.custom-option-content::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-color);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 0 2px 2px 0;
}

.custom-option-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent-color), transparent 82%);
  border: 1px solid color-mix(in srgb, var(--accent-color), transparent 65%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.custom-option-icon i {
  font-size: 1.5rem;
  color: var(--accent-color);
}

.custom-option-content strong {
  display: block;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--heading-color);
  margin-bottom: 5px;
}

.custom-option-content p {
  font-size: 0.81rem;
  color: color-mix(in srgb, var(--default-color), transparent 44%);
  margin: 0;
  line-height: 1.55;
}

.custom-check-mark {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--default-color), transparent 72%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.28s ease;
}

.custom-check-mark i {
  font-size: 1.1rem;
  color: transparent;
  transition: color 0.2s ease;
}

.custom-option-card:hover .custom-option-content {
  border-color: color-mix(in srgb, var(--accent-color), transparent 45%);
  background: color-mix(in srgb, var(--accent-color), transparent 91%);
  transform: translateX(4px);
}

.custom-option-card:hover .custom-option-content::before {
  opacity: 1;
}

.custom-option-card:hover .custom-option-icon {
  transform: scale(1.1);
}

.custom-option-card input:checked + .custom-option-content {
  border-color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color), transparent 85%);
  box-shadow: 0 4px 20px color-mix(in srgb, var(--accent-color), transparent 65%);
}

.custom-option-card input:checked + .custom-option-content::before {
  opacity: 1;
}

.custom-option-card input:checked + .custom-option-content .custom-check-mark {
  background: var(--accent-color);
  border-color: var(--accent-color);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent-color), transparent 50%);
}

.custom-option-card input:checked + .custom-option-content .custom-check-mark i {
  color: #fff;
}

/* ── Feature Grid ─────────────────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.feature-item {
  cursor: pointer;
  display: block;
}

.feature-item input {
  display: none;
}

.feature-item-content {
  display: grid;
  grid-template-columns: 44px 1fr 28px;
  align-items: center;
  gap: 14px;
  background: color-mix(in srgb, var(--background-color), transparent 15%);
  border: 1.5px solid color-mix(in srgb, var(--default-color), transparent 85%);
  border-radius: 14px;
  padding: 18px 20px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.feature-item-content::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-color), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-item-content > i {
  font-size: 1.5rem;
  color: var(--accent-color);
  transition: transform 0.3s ease;
}

.feature-item-content strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--heading-color);
  margin-bottom: 4px;
}

.feature-item-content small {
  font-size: 0.76rem;
  color: color-mix(in srgb, var(--default-color), transparent 44%);
  line-height: 1.45;
}

.feat-check {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--default-color), transparent 72%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.25s ease;
}

.feat-check i {
  font-size: 0.9rem;
  color: transparent;
  transition: color 0.2s ease;
}

.feature-item:hover .feature-item-content {
  border-color: color-mix(in srgb, var(--accent-color), transparent 45%);
  background: color-mix(in srgb, var(--accent-color), transparent 91%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.feature-item:hover .feature-item-content::after {
  opacity: 1;
}

.feature-item:hover .feature-item-content > i {
  transform: scale(1.15) rotate(-5deg);
}

.feature-item input:checked + .feature-item-content {
  border-color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color), transparent 85%);
  box-shadow: 0 4px 20px color-mix(in srgb, var(--accent-color), transparent 62%);
}

.feature-item input:checked + .feature-item-content::after {
  opacity: 1;
}

.feature-item input:checked + .feature-item-content .feat-check {
  background: var(--accent-color);
  border-color: var(--accent-color);
  box-shadow: 0 0 10px color-mix(in srgb, var(--accent-color), transparent 50%);
}

.feature-item input:checked + .feature-item-content .feat-check i {
  color: #fff;
}

/* ── Budget Cards ─────────────────────────────────────────── */
.budget-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.budget-card {
  cursor: pointer;
  display: block;
}

.budget-card-custom {
  grid-column: span 3;
}

.budget-card input {
  display: none;
}

.budget-card .card-content {
  background: color-mix(in srgb, var(--background-color), transparent 15%);
  border: 1.5px solid color-mix(in srgb, var(--default-color), transparent 85%);
  border-radius: 14px;
  padding: 22px 18px;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.budget-card .card-content::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-color);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  border-radius: 2px;
}

.budget-range {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--heading-color);
  letter-spacing: -0.3px;
}

.budget-card .card-content small {
  font-size: 0.76rem;
  color: color-mix(in srgb, var(--default-color), transparent 44%);
}

.budget-card:hover .card-content {
  border-color: color-mix(in srgb, var(--accent-color), transparent 45%);
  background: color-mix(in srgb, var(--accent-color), transparent 90%);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.budget-card:hover .card-content::before {
  transform: scaleX(1);
}

.budget-card input:checked + .card-content {
  background: var(--accent-color);
  border-color: var(--accent-color);
  box-shadow:
    0 0 28px color-mix(in srgb, var(--accent-color), transparent 45%),
    0 8px 32px rgba(0,0,0,0.3);
  transform: translateY(-2px);
}

.budget-card input:checked + .card-content .budget-range,
.budget-card input:checked + .card-content small {
  color: #fff;
}

/* Custom Budget Input */
.custom-budget-input {
  display: none;
  animation: stepFadeIn 0.3s ease forwards;
}

.custom-budget-input.visible {
  display: block;
}

.input-group-text {
  background: color-mix(in srgb, var(--accent-color), transparent 80%) !important;
  border-color: color-mix(in srgb, var(--default-color), transparent 78%) !important;
  color: var(--accent-color) !important;
  font-weight: 700;
}

/* ── Branding Cards ───────────────────────────────────────── */
.branding-card {
  cursor: pointer;
  width: 100%;
  display: block;
  height: 100%;
}

.branding-card input {
  display: none;
}

.branding-card .card-content {
  background: color-mix(in srgb, var(--background-color), transparent 15%);
  border: 1.5px solid color-mix(in srgb, var(--default-color), transparent 85%);
  border-radius: 16px;
  padding: 28px 18px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.branding-card .card-content i {
  font-size: 2rem;
  color: var(--accent-color);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.branding-card .card-content span {
  font-weight: 700;
  font-size: 0.93rem;
  color: var(--heading-color);
}

.branding-card .card-content small {
  font-size: 0.75rem;
  color: color-mix(in srgb, var(--default-color), transparent 45%);
  line-height: 1.55;
}

.branding-card:hover .card-content {
  border-color: color-mix(in srgb, var(--accent-color), transparent 40%);
  background: color-mix(in srgb, var(--accent-color), transparent 90%);
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.25);
}

.branding-card:hover .card-content i {
  transform: scale(1.25) rotate(-5deg);
}

.branding-card input:checked + .card-content {
  background: color-mix(in srgb, var(--accent-color), transparent 80%);
  border-color: var(--accent-color);
  box-shadow:
    0 0 26px color-mix(in srgb, var(--accent-color), transparent 55%),
    0 8px 28px rgba(0,0,0,0.25);
}

/* ── Deadline Notice ──────────────────────────────────────── */
.deadline-notice {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: color-mix(in srgb, #f59e0b, transparent 88%);
  border: 1px solid color-mix(in srgb, #f59e0b, transparent 58%);
  border-radius: 14px;
  padding: 20px 22px;
  backdrop-filter: blur(8px);
}

.deadline-notice > i {
  font-size: 1.4rem;
  color: #f59e0b;
  flex-shrink: 0;
  margin-top: 2px;
  filter: drop-shadow(0 0 8px rgba(245, 158, 11, 0.5));
}

.deadline-notice strong {
  display: block;
  font-size: 0.94rem;
  font-weight: 800;
  color: #fbbf24;
  margin-bottom: 8px;
}

.deadline-notice p {
  font-size: 0.84rem;
  color: color-mix(in srgb, var(--default-color), transparent 22%);
  line-height: 1.7;
  margin: 0;
}

/* ── Color Picker Group ───────────────────────────────────── */
.color-picker-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.color-preview-swatch {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #0c7489;
  border: 2px solid color-mix(in srgb, var(--default-color), transparent 68%);
  flex-shrink: 0;
  transition: background 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 0 0 3px transparent;
}

.color-preview-swatch:focus-within {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent-color), transparent 65%);
}

.hex-input {
  max-width: 160px;
  font-family: 'Roboto Mono', monospace;
  font-size: 0.9rem !important;
  letter-spacing: 1.5px;
}

.native-color-picker {
  display: none;
}

.color-picker-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent-color), transparent 80%);
  border: 1.5px solid color-mix(in srgb, var(--accent-color), transparent 52%);
  cursor: pointer;
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.color-picker-btn i {
  font-size: 1.2rem;
  color: var(--accent-color);
}

.color-picker-btn:hover {
  background: color-mix(in srgb, var(--accent-color), transparent 68%);
  transform: scale(1.08) rotate(8deg);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--accent-color), transparent 60%);
}

/* ── Form Controls ────────────────────────────────────────── */
.form-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--heading-color);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-label i {
  color: var(--accent-color);
  font-size: 0.95rem;
}

.required-star {
  color: #ef4444;
  margin-left: 2px;
}

.field-hint {
  font-size: 0.79rem;
  color: color-mix(in srgb, var(--default-color), transparent 46%);
  margin-bottom: 10px;
  line-height: 1.6;
}

.form-control,
.form-select {
  background-color: color-mix(in srgb, var(--background-color), transparent 8%) !important;
  border: 1.5px solid color-mix(in srgb, var(--default-color), transparent 82%) !important;
  color: var(--default-color) !important;
  border-radius: 12px !important;
  padding: 13px 18px !important;
  font-size: 0.9rem !important;
  transition: border-color 0.28s ease, box-shadow 0.28s ease !important;
}

.form-control::placeholder {
  color: color-mix(in srgb, var(--default-color), transparent 60%) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--accent-color) !important;
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent-color), transparent 72%),
    0 4px 16px rgba(0,0,0,0.15) !important;
  outline: none !important;
  background-color: color-mix(in srgb, var(--accent-color), var(--background-color) 97%) !important;
}

.form-select option {
  background: var(--surface-color);
  color: var(--default-color);
}

/* ── Navigation Buttons ───────────────────────────────────── */
.form-navigation {
  border-top: 1px solid color-mix(in srgb, var(--default-color), transparent 90%);
  padding-top: 30px;
  gap: 12px;
  flex-wrap: wrap;
}

.step-counter-text {
  font-size: 0.82rem;
  font-weight: 700;
  color: color-mix(in srgb, var(--default-color), transparent 42%);
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 30px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.btn-nav-prev {
  background: color-mix(in srgb, var(--default-color), transparent 88%);
  color: color-mix(in srgb, var(--default-color), transparent 18%);
}

.btn-nav-prev:hover:not(:disabled) {
  background: color-mix(in srgb, var(--default-color), transparent 80%);
  color: var(--heading-color);
  transform: translateX(-3px);
}

.btn-nav-prev:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.btn-nav-next {
  background: var(--accent-color);
  color: #fff;
  box-shadow:
    0 4px 20px color-mix(in srgb, var(--accent-color), transparent 52%),
    0 0 0 1px color-mix(in srgb, var(--accent-color), white 20%) inset;
}

.btn-nav-next:hover {
  background: color-mix(in srgb, var(--accent-color), white 12%);
  transform: translateY(-2px) translateX(2px);
  box-shadow:
    0 8px 32px color-mix(in srgb, var(--accent-color), transparent 38%),
    0 0 0 1px color-mix(in srgb, var(--accent-color), white 20%) inset;
  color: #fff;
}

.btn-nav-submit {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}

.btn-nav-submit:hover {
  background: linear-gradient(135deg, #059669, #047857);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(16, 185, 129, 0.5);
}

/* ── Subscription Info Banner ─────────────────────────────── */
.subscription-info-banner {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: color-mix(in srgb, var(--accent-color), transparent 86%);
  border: 1px solid color-mix(in srgb, var(--accent-color), transparent 58%);
  border-radius: 14px;
  padding: 18px 22px;
  font-size: 0.86rem;
  color: color-mix(in srgb, var(--default-color), transparent 18%);
  line-height: 1.65;
  backdrop-filter: blur(8px);
}

.subscription-info-banner > i {
  color: var(--accent-color);
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 2px;
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--accent-color), transparent 55%));
}

.subscription-info-banner strong {
  display: block;
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--accent-color);
  margin-bottom: 4px;
}

.sub-info-link {
  color: var(--accent-color);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent-color), transparent 52%);
  padding-bottom: 1px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.sub-info-link:hover {
  color: color-mix(in srgb, var(--accent-color), white 22%);
  border-color: color-mix(in srgb, var(--accent-color), white 22%);
}

.sub-info-link i {
  font-size: 0.72rem;
  vertical-align: middle;
  margin-left: 3px;
}

/* ── Subscription Plan Cards ──────────────────────────────── */
.sub-plan-card {
  cursor: pointer;
  display: block;
  height: 100%;
}

.sub-plan-card input {
  display: none;
}

.sub-plan-card .card-content {
  position: relative;
  background: color-mix(in srgb, var(--background-color), transparent 15%);
  border: 1.5px solid color-mix(in srgb, var(--default-color), transparent 85%);
  border-radius: 16px;
  padding: 26px 22px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  height: 100%;
  overflow: hidden;
}

/* "No Subscription" — horizontal layout */
.sub-plan-none .card-content {
  flex-direction: row;
  align-items: center;
  text-align: left;
  gap: 20px;
  padding: 20px 24px;
}

.sub-plan-none .sub-plan-info {
  flex: 1;
}

/* Tier badges */
.sub-plan-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: 50px;
  background: color-mix(in srgb, var(--accent-color), transparent 72%);
  border: 1px solid color-mix(in srgb, var(--accent-color), transparent 48%);
  color: var(--accent-color);
}

.diamond-badge {
  background: color-mix(in srgb, #a78bfa, transparent 72%);
  border-color: color-mix(in srgb, #a78bfa, transparent 48%);
  color: #a78bfa;
}

/* Tier icon circles */
.sub-plan-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--default-color), transparent 92%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease;
}

.sub-plan-icon i {
  font-size: 1.6rem;
  color: color-mix(in srgb, var(--default-color), transparent 30%);
}

.basic-icon  { background: color-mix(in srgb, #22c55e, transparent 80%); }
.basic-icon i { color: #22c55e; }

.vip-icon    { background: color-mix(in srgb, var(--accent-color), transparent 76%); }
.vip-icon i  { color: var(--accent-color); }

.diamond-icon { background: color-mix(in srgb, #a78bfa, transparent 76%); }
.diamond-icon i { color: #a78bfa; }

/* Plan name & description */
.sub-plan-info {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.sub-plan-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--heading-color);
}

.sub-plan-card .card-content small {
  font-size: 0.78rem;
  color: color-mix(in srgb, var(--default-color), transparent 40%);
  line-height: 1.55;
}

/* Price */
.sub-plan-price {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--heading-color);
  margin-top: 4px;
}

.sub-plan-price span {
  font-size: 0.76rem;
  font-weight: 500;
  color: color-mix(in srgb, var(--default-color), transparent 44%);
}

/* Hover states */
.sub-plan-card:hover .card-content {
  border-color: color-mix(in srgb, var(--accent-color), transparent 45%);
  background: color-mix(in srgb, var(--accent-color), transparent 90%);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

.sub-plan-card:hover .sub-plan-icon {
  transform: scale(1.12);
}

/* Selected — VIP & Basic */
.sub-plan-card input:checked + .card-content {
  border-color: var(--accent-color);
  background: color-mix(in srgb, var(--accent-color), transparent 82%);
  box-shadow:
    0 0 32px color-mix(in srgb, var(--accent-color), transparent 52%),
    0 10px 36px rgba(0,0,0,0.3);
}

/* Selected — Diamond uses purple glow */
.sub-plan-card:has(input[value="diamond"]:checked) .card-content {
  border-color: #a78bfa;
  background: color-mix(in srgb, #a78bfa, transparent 85%);
  box-shadow:
    0 0 32px color-mix(in srgb, #a78bfa, transparent 52%),
    0 10px 36px rgba(0,0,0,0.3);
}

/* Selected — No Subscription uses neutral */
.sub-plan-card:has(input[value="none"]:checked) .card-content {
  border-color: color-mix(in srgb, var(--default-color), transparent 48%);
  background: color-mix(in srgb, var(--default-color), transparent 92%);
  box-shadow: none;
}

/* ── Success State ────────────────────────────────────────── */
.success-state {
  text-align: center;
  padding: 70px 20px;
}

.success-icon-wrap {
  margin-bottom: 32px;
}

.success-icon-wrap i {
  font-size: 5.5rem;
  color: #10b981;
  filter: drop-shadow(0 0 28px rgba(16, 185, 129, 0.5));
  animation: successPop 0.55s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes successPop {
  from { transform: scale(0.4); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.success-state h2 {
  font-size: 2.1rem;
  font-weight: 900;
  color: var(--heading-color);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.success-state p {
  color: color-mix(in srgb, var(--default-color), transparent 28%);
  font-size: 1.02rem;
  max-width: 500px;
  margin: 0 auto 36px;
  line-height: 1.75;
}

.success-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ── Responsive: Tablet (≤ 991px) ────────────────────────── */
@media (max-width: 991px) {
  .config-wrapper {
    padding: 40px 32px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .budget-options {
    grid-template-columns: repeat(2, 1fr);
  }

  .budget-card-custom {
    grid-column: span 2;
  }

  .progress-steps .step-label {
    display: none;
  }

  .progress-steps .step i {
    width: 38px;
    height: 38px;
    font-size: 0.9rem;
  }

  .step-track-bar,
  .progress-steps::before {
    top: 19px;
  }

  .config-hero-badges {
    align-items: flex-start;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
  }
}

/* ── Responsive: Mobile (≤ 767px) ────────────────────────── */
@media (max-width: 767px) {
  .sub-plan-none .card-content {
    flex-direction: column;
    text-align: center;
  }
}

/* ── Responsive: Mobile (≤ 575px) ────────────────────────── */
@media (max-width: 575px) {
  .config-hero {
    padding: 48px 0 40px;
  }

  .config-hero-title {
    font-size: 1.85rem;
  }

  .config-wrapper {
    padding: 28px 20px;
  }

  .step-header {
    flex-direction: column;
    gap: 8px;
  }

  .step-num {
    font-size: 2.2rem;
  }

  .budget-options {
    grid-template-columns: 1fr;
  }

  .budget-card-custom {
    grid-column: span 1;
  }

  .custom-option-content {
    grid-template-columns: 46px 1fr 28px;
    gap: 12px;
  }

  .form-navigation {
    justify-content: center;
    gap: 10px;
  }

  .step-counter-text {
    order: -1;
    width: 100%;
    text-align: center;
  }

  .color-picker-group {
    flex-wrap: wrap;
  }

  .progress-steps .step i {
    width: 32px;
    height: 32px;
    font-size: 0.78rem;
  }

  .step-track-bar,
  .progress-steps::before {
    top: 16px;
  }
}