/* ==========================================================================
   Trade-in Phone Valuation Calculator Page Styles
   Myan Mobile & IT - Premium Dark Tech Theme
   ========================================================================== */

.calc-page-main {
  padding-top: calc(var(--nav-height) + 1.5rem);
  padding-bottom: 4rem;
  min-height: 100vh;
}

/* Breadcrumb */
.calc-breadcrumb-nav {
  margin-bottom: 1.5rem;
}

.calc-breadcrumb-trail {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 20px;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.calc-breadcrumb-trail a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.calc-breadcrumb-trail a:hover {
  color: #fbbf24;
}

.calc-breadcrumb-sep {
  color: var(--border-medium);
}

.calc-breadcrumb-current {
  color: #fbbf24;
  font-weight: 600;
}

/* Header Banner */
.calc-hero-header {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(15, 23, 42, 0.8) 100%);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--radius-xl);
  padding: 2.2rem 2.5rem;
  margin-bottom: 2.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  position: relative;
  overflow: hidden;
}

.calc-hero-header::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.calc-hero-badge {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fbbf24;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.calc-hero-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.calc-hero-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin: 0;
  max-width: 720px;
  line-height: 1.6;
}

/* Main Grid */
.calc-layout-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 2rem;
  align-items: start;
  margin-bottom: 3.5rem;
}

/* Step Cards */
.calc-step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: border-color var(--transition-fast);
}

.calc-step-card:hover {
  border-color: rgba(245, 158, 11, 0.3);
}

.calc-step-card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border-subtle);
}

.calc-step-badge {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #0f172a;
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.calc-step-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

/* Form Fields */
.calc-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 1.2rem;
}

.calc-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.calc-field-group:last-child {
  margin-bottom: 0;
}

.calc-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.calc-select {
  width: 100%;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.calc-select:focus {
  border-color: rgba(245, 158, 11, 0.7);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.calc-select option {
  background: #0f172a;
  color: #f8fafc;
}

/* Condition Option Cards */
.calc-condition-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.calc-cond-radio {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.2rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.calc-cond-radio:hover {
  background: rgba(245, 158, 11, 0.04);
  border-color: rgba(245, 158, 11, 0.35);
}

.calc-cond-radio.selected {
  background: rgba(245, 158, 11, 0.08);
  border-color: rgba(245, 158, 11, 0.65);
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.12);
}

.calc-cond-radio input[type="radio"] {
  accent-color: #f59e0b;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  cursor: pointer;
}

.calc-cond-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.calc-cond-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.calc-cond-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.calc-cond-rate-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
  align-self: flex-start;
}

/* Accessories Checkboxes */
.calc-accessories-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.calc-acc-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calc-acc-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-medium);
}

.calc-acc-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.calc-acc-left input[type="checkbox"] {
  accent-color: #f59e0b;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.calc-acc-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.calc-acc-bonus {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: #4ade80;
}

/* Right Column: Sticky Summary Card */
.calc-summary-panel {
  position: sticky;
  top: calc(var(--nav-height) + 1.5rem);
}

.calc-summary-card {
  background: linear-gradient(150deg, rgba(30, 41, 59, 0.75) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(245, 158, 11, 0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.calc-summary-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
}

.calc-device-thumb-wrap {
  position: relative;
  width: 72px;
  height: 72px;
  min-width: 72px;
  border-radius: var(--radius-md, 10px);
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.28);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.calc-device-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  padding: 0;
  transition: opacity 0.25s ease;
}

.calc-device-thumb.is-logo,
.calc-device-banner-thumb-wrap img.is-logo {
  object-fit: contain !important;
  padding: 8px !important;
}

.calc-device-thumb-wrap.is-loading .calc-device-thumb {
  opacity: 0;
}

.calc-thumb-spinner {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.95);
  z-index: 2;
}

.calc-device-thumb-wrap.is-loading .calc-thumb-spinner {
  display: flex;
}

.calc-thumb-spinner::after {
  content: "";
  width: 22px;
  height: 22px;
  border: 2.5px solid rgba(56, 189, 248, 0.2);
  border-top-color: #38bdf8;
  border-radius: 50%;
  animation: calcThumbSpin 0.7s linear infinite;
}

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

.calc-device-meta {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.calc-device-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: #ffffff;
}

.calc-device-sub {
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* Price Highlight Box */
.calc-price-highlight {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
}

.calc-price-tag-label {
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #fbbf24;
  margin-bottom: 0.45rem;
}

.calc-price-big {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #fef08a;
  text-shadow: 0 0 24px rgba(245, 158, 11, 0.4);
  line-height: 1.2;
  margin-bottom: 0.45rem;
}

.calc-price-range-text {
  font-size: 0.86rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* Breakdown List */
.calc-breakdown-list {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.calc-bd-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.calc-bd-row strong {
  color: var(--text-primary);
  font-weight: 700;
}

/* Action CTA Buttons */
.calc-cta-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.calc-btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.95rem 1.25rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #0f172a;
  font-family: inherit;
  font-size: 0.98rem;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}

.calc-btn-primary:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  box-shadow: 0 8px 26px rgba(245, 158, 11, 0.5);
  transform: translateY(-2px);
}

.calc-btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calc-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(245, 158, 11, 0.4);
  color: #fbbf24;
}

/* Information / Perks Cards at Bottom */
.calc-perks-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.calc-perk-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color var(--transition-fast);
}

.calc-perk-card:hover {
  border-color: rgba(245, 158, 11, 0.3);
}

.calc-perk-num {
  font-size: 1.25rem;
  font-weight: 800;
  color: #fbbf24;
  font-family: var(--font-mono);
}

.calc-perk-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.calc-perk-desc {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .calc-layout-grid {
    grid-template-columns: 1fr;
  }

  .calc-summary-panel {
    position: static;
  }

  .calc-perks-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .calc-hero-header {
    padding: 1.5rem;
  }

  .calc-hero-title {
    font-size: 1.6rem;
  }

  .calc-field-row {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .calc-step-card {
    padding: 1.25rem;
  }

  .calc-price-big {
    font-size: 1.75rem;
  }
}