/* ==========================================================================
   BINTORO ARCHITECT - OFFICIAL DESIGN SYSTEM & ORDER ENGINE STYLES
   Color Palette:
   - Charcoal Black: #121212 / #1B1B1B / #232323
   - Bintoro Sand Gold / Champagne Bronze: #CDA274 / #B88B58 / #DFB98D
   - Bintoro Mocha Brown: #745A4C / #4B2B19
   - Warm Sandstone / Taupe: #D2C3B1 / #A38F7F
   - Clean Off-White: #FFFFFF / #FAFDFF / #F8F9FA / #F1EFEA
   ========================================================================== */

:root {
  /* Bintoro Brand Signature Palette */
  --bintoro-black: #151515;
  --bintoro-charcoal: #202020;
  --bintoro-darker: #0D0D0D;
  
  --bintoro-brown: #745A4C;
  --bintoro-brown-dark: #4B2B19;
  --bintoro-brown-light: #8E7060;
  
  --bintoro-gold: #CDA274;
  --bintoro-gold-hover: #b88b58;
  --bintoro-gold-light: #fbf7f2;
  --bintoro-gold-glow: rgba(205, 162, 116, 0.32);
  
  --bintoro-taupe: #A38F7F;
  --bintoro-sand: #D2C3B1;
  --bintoro-offwhite: #FAFDFF;
  --bintoro-gray-warm: #EFEFEF;

  /* UI Tokens */
  --primary-dark: #121212;
  --primary-charcoal: #1B1B1B;
  --accent-gold: #CDA274;
  --accent-brown: #745A4C;

  --text-dark: #1B1B1B;
  --text-muted: #64748B;
  --text-light: #FAFDFF;

  --bg-gradient: linear-gradient(180deg, #F8F9FA 0%, #F1EFEA 100%);
  --card-bg: #FFFFFF;
  --border-light: #E2E8F0;
  --border-focus: #CDA274;

  --success: #10B981;
  --success-bg: #ECFDF5;
  --error: #EF4444;
  --error-bg: #FEF2F2;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 10px 25px -5px rgba(27, 27, 27, 0.08), 0 8px 10px -6px rgba(27, 27, 27, 0.04);
  --shadow-lg: 0 25px 50px -12px rgba(27, 27, 27, 0.16);
  --shadow-gold: 0 10px 30px -5px rgba(205, 162, 116, 0.35);

  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', 'Plus Jakarta Sans', sans-serif;
  --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background: var(--bg-gradient);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   TOP ANNOUNCEMENT BAR
   ========================================================================== */
.announcement-bar {
  background: var(--bintoro-darker);
  color: #D6D6D6;
  font-size: 0.8125rem;
  padding: 9px 0;
  border-bottom: 1px solid rgba(205, 162, 116, 0.25);
}

.bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.badge-tag {
  background: linear-gradient(135deg, var(--bintoro-gold), #b88b58);
  color: var(--bintoro-black);
  font-weight: 800;
  font-size: 0.6875rem;
  letter-spacing: 0.07em;
  padding: 3px 9px;
  border-radius: 4px;
  text-transform: uppercase;
}

.announcement-text {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-weight: 500;
}

.cashback-highlight {
  color: #F8D7A8;
  font-weight: 700;
}

.bullet {
  color: var(--bintoro-gold);
  font-size: 0.9rem;
}

.hotline-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--bintoro-gold);
}

.hotline-badge a {
  color: var(--bintoro-gold);
  text-decoration: none;
}

.hotline-badge a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   MAIN HEADER
   ========================================================================== */
.main-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand-identity {
  display: flex;
  align-items: center;
  gap: 18px;
  text-decoration: none;
}

.brand-badge-wrap {
  display: inline-flex;
  align-items: center;
}

.brand-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.brand-logo-img:hover {
  transform: scale(1.02);
}

.brand-desktop-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-divider {
  width: 1px;
  height: 38px;
  background-color: #E2E8F0;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--bintoro-black);
  line-height: 1.15;
}

.brand-title span {
  color: var(--bintoro-gold);
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-info-contacts {
  display: flex;
  gap: 20px;
}

.contact-pill-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bintoro-gold-light);
  border: 1px solid rgba(205, 162, 116, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.contact-text-box {
  display: flex;
  flex-direction: column;
}

.contact-lbl {
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.contact-val {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--bintoro-black);
}

.contact-val a {
  color: var(--bintoro-black);
  text-decoration: none;
}

.contact-val a:hover {
  color: var(--bintoro-gold);
}

.badge-official-partner {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #FDF9F3;
  border: 1px solid rgba(205, 162, 116, 0.4);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--bintoro-brown);
}

.mobile-header-action {
  display: none;
  background: #25D366;
  color: #FFFFFF;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.8125rem;
  padding: 7px 14px;
  border-radius: 9999px;
  box-shadow: 0 4px 10px rgba(37, 211, 102, 0.3);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.form-hero {
  background: linear-gradient(135deg, #181818 0%, #252220 50%, #151515 100%);
  color: #FFFFFF;
  padding: 44px 0 52px;
  position: relative;
  overflow: hidden;
}

.form-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 50%;
  background: radial-gradient(circle at center, rgba(205, 162, 116, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
}

.sub-hero-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  font-weight: 800;
  color: var(--bintoro-gold);
  text-transform: uppercase;
  margin-bottom: 12px;
  background: rgba(205, 162, 116, 0.12);
  border: 1px solid rgba(205, 162, 116, 0.3);
  padding: 4px 14px;
  border-radius: 9999px;
}

.hero-heading {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.hero-desc {
  font-size: 1rem;
  color: #D6D6D6;
  line-height: 1.65;
  margin-bottom: 24px;
}

.hero-badges-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.hero-mini-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(8px);
  padding: 7px 14px;
  border-radius: 9999px;
  font-size: 0.8125rem;
  color: #E2E8F0;
  font-weight: 600;
}

.hero-mini-badge .h-icon {
  font-size: 1rem;
}

/* ==========================================================================
   FORM WRAPPER & STEPPER
   ========================================================================== */
.form-main-wrapper {
  margin-top: -24px;
  margin-bottom: 60px;
  position: relative;
  z-index: 10;
}

/* Stepper Card */
.stepper-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  margin-bottom: 28px;
  position: relative;
}

.stepper-progress-track {
  position: absolute;
  top: 42px;
  left: 60px;
  right: 60px;
  height: 4px;
  background: #E2E8F0;
  z-index: 1;
  border-radius: 4px;
}

.stepper-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--bintoro-gold), #b88b58);
  border-radius: 4px;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.stepper-items {
  display: flex;
  justify-content: space-between;
  position: relative;
  z-index: 2;
}

.step-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  group: step;
}

.node-circle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2px solid #CBD5E1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9375rem;
  color: #64748B;
  transition: var(--transition);
  margin-bottom: 8px;
}

.node-num {
  display: block;
}

.node-check {
  display: none;
  width: 18px;
  height: 18px;
  stroke: #FFFFFF;
}

.node-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: #64748B;
  white-space: nowrap;
  transition: var(--transition);
}

/* Stepper Node States */
.step-node.active .node-circle {
  background: var(--bintoro-black);
  border-color: var(--bintoro-gold);
  color: var(--bintoro-gold);
  box-shadow: 0 0 0 4px rgba(205, 162, 116, 0.25);
  transform: scale(1.08);
}

.step-node.active .node-label {
  color: var(--bintoro-black);
  font-weight: 800;
}

.step-node.completed .node-circle {
  background: var(--bintoro-gold);
  border-color: var(--bintoro-gold);
  color: #FFFFFF;
}

.step-node.completed .node-num {
  display: none;
}

.step-node.completed .node-check {
  display: block;
}

.step-node.completed .node-label {
  color: var(--bintoro-brown-dark);
}

/* ==========================================================================
   FORM CONTAINER & STEPS
   ========================================================================== */
.form-card-container {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: 40px 48px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

.form-step {
  display: none;
  animation: fadeInStep 0.3s ease forwards;
}

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

@keyframes fadeInStep {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.step-header {
  margin-bottom: 28px;
  border-bottom: 1px solid #F1F5F9;
  padding-bottom: 18px;
}

.step-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--bintoro-brown);
  background: var(--bintoro-gold-light);
  border: 1px solid rgba(205, 162, 116, 0.3);
  padding: 3px 10px;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.step-title {
  font-family: var(--font-heading);
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--bintoro-black);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.step-subtitle {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Section Sub Label & Dividers */
.section-sub-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--bintoro-black);
  margin-bottom: 14px;
}

.section-divider {
  height: 1px;
  background: #E2E8F0;
  margin: 32px 0;
}

/* ==========================================================================
   FORM INPUTS & GRID
   ========================================================================== */
.form-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

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

.form-group label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--bintoro-black);
  margin-bottom: 7px;
}

.required {
  color: var(--error);
  font-weight: 800;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
  width: 100%;
  font-family: var(--font-main);
  font-size: 0.9375rem;
  color: var(--bintoro-black);
  background: #FFFFFF;
  border: 1.5px solid #CBD5E1;
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  transition: var(--transition);
  outline: none;
}

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

.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
  border-color: var(--error) !important;
  background-color: #FFF8F8;
}

.input-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 5px;
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-icon input {
  padding-left: 54px;
  padding-right: 40px;
}

.input-prefix {
  position: absolute;
  left: 14px;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--text-muted);
  pointer-events: none;
}

.trailing-icon {
  position: absolute;
  right: 14px;
  font-size: 1rem;
  pointer-events: none;
}

.trailing-unit {
  position: absolute;
  right: 14px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-muted);
  pointer-events: none;
}

/* Pill Radios */
.pill-radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill-radio {
  cursor: pointer;
}

.pill-radio input {
  display: none;
}

.pill-radio span {
  display: inline-block;
  padding: 8px 16px;
  background: #F8FAFC;
  border: 1.5px solid #E2E8F0;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #475569;
  transition: var(--transition);
}

.pill-radio input:checked + span {
  background: #FDF9F3;
  border-color: var(--bintoro-gold);
  color: var(--bintoro-brown-dark);
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(205, 162, 116, 0.2);
}

/* ==========================================================================
   STEP 2: SERVICE SELECTOR CARDS
   ========================================================================== */
.service-selector-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.card-radio-option {
  position: relative;
  cursor: pointer;
  border: 2px solid #E2E8F0;
  border-radius: var(--radius-md);
  background: #FFFFFF;
  padding: 20px;
  transition: var(--transition);
}

.card-radio-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.card-radio-option:hover {
  border-color: #CBD5E1;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.card-radio-option.active {
  border-color: var(--bintoro-gold);
  background: #FCFBF9;
  box-shadow: var(--shadow-gold);
}

.card-option-body {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.card-option-body .icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bintoro-gold-light);
  border: 1px solid rgba(205, 162, 116, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.card-option-body .option-info h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--bintoro-black);
  margin-bottom: 5px;
}

.card-option-body .option-info p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.tag-pill {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 800;
  color: var(--bintoro-brown);
  background: rgba(205, 162, 116, 0.2);
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  margin-top: 8px;
}

/* ==========================================================================
   STEP 3: FEATURE CHECKLIST & ARCHITECTURE STYLES
   ========================================================================== */
.checkbox-pill-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.custom-checkbox {
  cursor: pointer;
}

.custom-checkbox input {
  display: none;
}

.custom-checkbox span {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #F8FAFC;
  border: 1.5px solid #E2E8F0;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #334155;
  transition: var(--transition);
}

.custom-checkbox input:checked + span {
  background: #FDF9F3;
  border-color: var(--bintoro-gold);
  color: var(--bintoro-brown-dark);
  font-weight: 700;
}

/* Architecture Grid */
.architecture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.arch-card {
  position: relative;
  cursor: pointer;
  border: 2px solid #E2E8F0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #FFFFFF;
  transition: var(--transition);
}

.arch-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.arch-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #CBD5E1;
}

.arch-card.active {
  border-color: var(--bintoro-gold);
  box-shadow: var(--shadow-gold);
}

.arch-img-box {
  width: 100%;
  height: 140px;
  position: relative;
  overflow: hidden;
  background: #E2E8F0;
}

.arch-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.arch-card:hover .arch-img-box img {
  transform: scale(1.05);
}

.arch-tag {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(18, 18, 18, 0.85);
  backdrop-filter: blur(4px);
  color: var(--bintoro-gold);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.03em;
}

.arch-content {
  padding: 14px;
}

.arch-content h5 {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--bintoro-black);
  margin-bottom: 4px;
}

.arch-content p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   STEP 4: TIERS & LIVE CALCULATOR
   ========================================================================== */
.tier-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.tier-card {
  position: relative;
  cursor: pointer;
  border: 2px solid #E2E8F0;
  border-radius: var(--radius-md);
  background: #FFFFFF;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.tier-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tier-card:hover {
  border-color: #CBD5E1;
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.tier-card.active {
  border-color: var(--bintoro-gold);
  background: #FFFCF7;
  box-shadow: var(--shadow-gold);
}

.tier-badge-highlight {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--bintoro-gold), #b88b58);
  color: #FFFFFF;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 3px 12px;
  border-radius: 9999px;
  white-space: nowrap;
  box-shadow: 0 4px 10px rgba(205, 162, 116, 0.4);
}

.tier-header {
  border-bottom: 1px solid #F1F5F9;
  padding-bottom: 14px;
  margin-bottom: 14px;
}

.tier-category {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--bintoro-brown);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 4px;
}

.tier-header h4 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--bintoro-black);
  margin-bottom: 6px;
}

.tier-price {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--bintoro-black);
}

.tier-card.active .tier-price {
  color: var(--bintoro-brown-dark);
}

.per-m {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

.tier-specs {
  list-style: none;
  font-size: 0.78rem;
  color: #475569;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tier-specs li {
  position: relative;
  padding-left: 18px;
  line-height: 1.45;
}

.tier-specs li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--bintoro-gold);
  font-weight: 800;
  font-size: 0.875rem;
}

.sub-specs {
  list-style: disc;
  margin-top: 4px;
  margin-left: 16px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.sub-specs li {
  padding-left: 0;
}
.sub-specs li::before {
  content: "";
}

/* Live Calc Box */
.live-calc-box {
  background: linear-gradient(135deg, #1A1A1A 0%, #262321 100%);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
  border: 1px solid rgba(205, 162, 116, 0.3);
}

.calc-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 12px;
}

.calc-icon-badge {
  background: rgba(205, 162, 116, 0.2);
  color: var(--bintoro-gold);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 4px;
}

.calc-note {
  font-size: 0.75rem;
  color: #94A3B8;
}

.calc-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.calc-item {
  display: flex;
  flex-direction: column;
}

.calc-lbl {
  font-size: 0.75rem;
  color: #94A3B8;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.calc-val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: #FFFFFF;
}

.calc-math-sign {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--bintoro-gold);
}

.calc-result-item {
  display: flex;
  flex-direction: column;
}

.calc-result-lbl {
  font-size: 0.78rem;
  color: var(--bintoro-gold);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.calc-result-total {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: #FFFFFF;
  text-shadow: 0 2px 10px rgba(205, 162, 116, 0.3);
}

/* Cashback Banner Box */
.cashback-banner-box {
  background: #FFFBF5;
  border: 1.5px dashed var(--bintoro-gold);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  gap: 16px;
  align-items: center;
}

.cb-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.cb-text h5 {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--bintoro-brown-dark);
  margin-bottom: 3px;
  letter-spacing: 0.03em;
}

.cb-text p {
  font-size: 0.8125rem;
  color: #475569;
  line-height: 1.5;
}

/* ==========================================================================
   STEP 5: SURVEY NOTICE & DROPZONE
   ========================================================================== */
.survey-notice-box {
  background: #F8FAFC;
  border-left: 4px solid var(--bintoro-gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
}

.notice-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.notice-text h5 {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--bintoro-black);
  margin-bottom: 4px;
}

.notice-text p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Dropzone */
.file-upload-dropzone {
  border: 2px dashed #CBD5E1;
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  background: #F8FAFC;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.file-upload-dropzone:hover,
.file-upload-dropzone.dragover {
  border-color: var(--bintoro-gold);
  background: #FDF9F3;
}

.file-input-hidden {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.upload-icon {
  margin-bottom: 10px;
}

.upload-main-text {
  font-size: 0.875rem;
  color: #334155;
  margin-bottom: 4px;
}

.upload-main-text strong {
  color: var(--bintoro-gold);
}

.upload-sub-text {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.file-preview-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  justify-content: center;
}

.file-item-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #334155;
  box-shadow: var(--shadow-sm);
}

.file-item-remove {
  cursor: pointer;
  color: #94A3B8;
  font-weight: 800;
}

.file-item-remove:hover {
  color: var(--error);
}

/* ==========================================================================
   STEP 6: SUMMARY REVIEW
   ========================================================================== */
.summary-review-card {
  border: 1.5px solid #E2E8F0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #FFFFFF;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.summary-header {
  background: #181818;
  color: #FFFFFF;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.summary-brand-tag {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--bintoro-gold);
  letter-spacing: 0.08em;
}

.summary-status-badge {
  background: rgba(205, 162, 116, 0.2);
  color: #FFFFFF;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 9999px;
}

.summary-sections {
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.summary-box {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-md);
  padding: 16px;
}

.summary-box.highlight-box {
  background: #FFFDF9;
  border-color: rgba(205, 162, 116, 0.4);
}

.summary-box-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--bintoro-black);
  margin-bottom: 12px;
  border-bottom: 1px solid #E2E8F0;
  padding-bottom: 8px;
}

.btn-jump-step {
  background: none;
  border: none;
  color: var(--bintoro-gold);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: underline;
}

.btn-jump-step:hover {
  color: var(--bintoro-brown-dark);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  margin-bottom: 6px;
  gap: 10px;
}

.summary-row .k {
  color: var(--text-muted);
  font-weight: 500;
  flex-shrink: 0;
}

.summary-row .v {
  font-weight: 700;
  color: var(--bintoro-black);
  text-align: right;
  word-break: break-word;
}

.text-gold {
  color: var(--bintoro-brown-dark) !important;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 800;
}

.text-highlight {
  color: #0284C7 !important;
}

/* Agreement Box */
.agreement-box {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 24px;
}

.custom-agree-checkbox {
  display: flex;
  gap: 12px;
  cursor: pointer;
  align-items: flex-start;
}

.custom-agree-checkbox input {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  accent-color: var(--bintoro-gold);
  cursor: pointer;
}

.agree-text {
  font-size: 0.8125rem;
  color: #334155;
  line-height: 1.5;
}

/* Submission Alert */
.submission-alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 14px;
}

.submission-alert.hidden {
  display: none;
}

.submission-alert.success {
  background: var(--success-bg);
  border: 1px solid var(--success);
  color: #065F46;
}

.submission-alert.error {
  background: var(--error-bg);
  border: 1px solid var(--error);
  color: #991B1B;
}

/* ==========================================================================
   NAVIGATION BUTTONS (FOOTER)
   ========================================================================== */
.form-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #F1F5F9;
  padding-top: 24px;
  margin-top: 10px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.step-indicator-text {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-main);
  font-size: 0.9375rem;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--bintoro-black);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
  background: #2D2D2D;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background: #F1F5F9;
  color: #475569;
  border: 1px solid #CBD5E1;
}

.btn-secondary:hover {
  background: #E2E8F0;
  color: #1E293B;
}

.btn-submit {
  background: linear-gradient(135deg, var(--bintoro-gold), #b88b58);
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(205, 162, 116, 0.4);
}

.btn-submit:hover {
  filter: brightness(1.06);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(205, 162, 116, 0.5);
}

.btn-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #FFFFFF;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.btn-spinner.hidden {
  display: none;
}

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

/* ==========================================================================
   SUCCESS SCREEN
   ========================================================================== */
.success-screen {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  text-align: center;
  animation: fadeInStep 0.4s ease forwards;
}

.success-screen.hidden {
  display: none;
}

.success-card {
  max-width: 720px;
  margin: 0 auto;
}

/* Checkmark Animation */
.success-animation-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto 20px;
}

.checkmark {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  display: block;
  stroke-width: 3;
  stroke: #10B981;
  stroke-miterlimit: 10;
  box-shadow: inset 0px 0px 0px #10B981;
  animation: fillCircle 0.4s ease-in-out 0.4s forwards, scaleCircle 0.3s ease-in-out 0.9s both;
}

.checkmark-circle {
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  stroke-width: 3;
  stroke-miterlimit: 10;
  stroke: #10B981;
  animation: strokeCircle 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-check {
  transform-origin: 50% 50%;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: strokeCheck 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.7s forwards;
}

@keyframes strokeCircle {
  100% { stroke-dashoffset: 0; }
}

@keyframes strokeCheck {
  100% { stroke-dashoffset: 0; }
}

.success-badge {
  display: inline-block;
  background: var(--success-bg);
  color: #065F46;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 14px;
  border-radius: 9999px;
  border: 1px solid rgba(16, 185, 129, 0.3);
  margin-bottom: 12px;
}

.success-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--bintoro-black);
  margin-bottom: 8px;
}

.success-subtitle {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.email-highlight-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #F0F9FF;
  border: 1px solid #BAE6FD;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  text-align: left;
}

.email-info {
  display: flex;
  flex-direction: column;
}

.email-lbl {
  font-size: 0.6875rem;
  color: #0369A1;
  font-weight: 700;
  text-transform: uppercase;
}

.email-target {
  font-size: 0.9375rem;
  color: #0C4A6E;
  font-weight: 800;
}

/* Ticket Box */
.ticket-box {
  background: linear-gradient(135deg, #181818 0%, #292523 100%);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 24px 30px;
  margin-bottom: 32px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(205, 162, 116, 0.35);
}

.ticket-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 0.75rem;
}

.ticket-tag {
  color: var(--bintoro-gold);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.ticket-date {
  color: #94A3B8;
  font-weight: 600;
}

.ticket-code {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #FFFFFF;
  text-shadow: 0 2px 10px rgba(205, 162, 116, 0.4);
  margin-bottom: 6px;
}

.ticket-hint {
  font-size: 0.75rem;
  color: #94A3B8;
}

/* Next Steps */
.next-steps-guide {
  background: #F8FAFC;
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 32px;
  text-align: left;
}

.next-steps-guide h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--bintoro-black);
  margin-bottom: 18px;
}

.steps-flow {
  display: flex;
  gap: 16px;
}

.next-step-item {
  flex: 1;
  display: flex;
  gap: 12px;
}

.step-num-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bintoro-gold);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-text strong {
  display: block;
  font-size: 0.8125rem;
  color: var(--bintoro-black);
  margin-bottom: 3px;
}

.step-text p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Success Actions */
.success-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto;
}

.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
  font-size: 1rem;
  padding: 14px 20px;
  justify-content: center;
}

.btn-whatsapp:hover {
  background: #20BD5A;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.45);
}

.btn-outline {
  background: #FFFFFF;
  border: 1.5px solid #CBD5E1;
  color: #334155;
  justify-content: center;
}

.btn-outline:hover {
  background: #F8FAFC;
  border-color: #94A3B8;
}

.btn-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.8125rem;
  justify-content: center;
  text-decoration: underline;
}

.btn-link:hover {
  color: var(--bintoro-black);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
  background: #111111;
  color: #D6D6D6;
  padding: 56px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.01em;
}

.footer-logo strong span {
  color: var(--bintoro-gold);
}

.footer-logo span {
  font-size: 0.75rem;
  color: var(--bintoro-gold);
  font-weight: 600;
}

.footer-desc {
  font-size: 0.8125rem;
  line-height: 1.6;
  margin-top: 12px;
  color: #94A3B8;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.footer-col p {
  font-size: 0.8125rem;
  line-height: 1.6;
  margin-bottom: 8px;
  color: #94A3B8;
}

.footer-col a {
  color: var(--bintoro-gold);
  text-decoration: none;
}

.footer-col a:hover {
  text-decoration: underline;
}

.footer-links {
  list-style: none;
  font-size: 0.8125rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links li a {
  color: #94A3B8;
  text-decoration: none;
  transition: var(--transition);
}

.footer-links li a:hover {
  color: var(--bintoro-gold);
  padding-left: 4px;
}

.footer-bottom {
  padding: 20px 0;
  font-size: 0.75rem;
  color: #64748B;
}

.bottom-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.certifications {
  display: flex;
  gap: 16px;
  font-weight: 600;
  color: #94A3B8;
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLETS & MOBILE)
   ========================================================================== */
@media (max-width: 992px) {
  .header-info-contacts {
    display: none;
  }

  .service-selector-grid,
  .architecture-grid,
  .tier-cards-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .steps-flow {
    flex-direction: column;
    gap: 14px;
  }

  .summary-sections {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .announcement-bar {
    display: none;
  }

  .mobile-header-action {
    display: inline-flex;
  }

  .badge-official-partner {
    display: none;
  }

  .hero-heading {
    font-size: 1.6rem;
  }

  .hero-desc {
    font-size: 0.875rem;
  }

  .form-card-container {
    padding: 24px 20px;
  }

  .stepper-card {
    padding: 16px;
  }

  .stepper-progress-track {
    left: 20px;
    right: 20px;
    top: 32px;
  }

  .node-circle {
    width: 32px;
    height: 32px;
    font-size: 0.8125rem;
  }

  .node-label {
    font-size: 0.65rem;
  }

  .col-4, .col-6, .col-8, .col-12 {
    grid-column: span 12;
  }

  .checkbox-pill-grid {
    grid-template-columns: 1fr;
  }

  .calc-body {
    flex-direction: column;
    align-items: flex-start;
  }

  .calc-math-sign {
    display: none;
  }

  .calc-result-total {
    font-size: 1.45rem;
  }

  .form-navigation {
    flex-direction: column-reverse;
    gap: 16px;
  }

  .nav-right {
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }

  .nav-right button {
    width: 100%;
    justify-content: center;
  }

  .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  .bottom-row {
    flex-direction: column;
    text-align: center;
  }
}

/* ==========================================================================
   PRINT MEDIA STYLES (PDF EXPORT)
   ========================================================================== */
@media print {
  body {
    background: #FFFFFF !important;
    color: #000000 !important;
  }

  .announcement-bar,
  .main-header,
  .form-hero,
  .stepper-card,
  .form-navigation,
  .main-footer,
  .success-actions,
  .btn-jump-step {
    display: none !important;
  }

  .form-main-wrapper {
    margin: 0 !important;
    padding: 0 !important;
  }

  .form-card-container,
  .success-screen {
    box-shadow: none !important;
    border: none !important;
    padding: 0 !important;
  }

  .ticket-box {
    background: #F8FAFC !important;
    color: #000000 !important;
    border: 2px solid #000000 !important;
  }

  .ticket-code {
    color: #000000 !important;
    text-shadow: none !important;
  }
}