/* ============================================
   TREECOSTPRO - Professional Tree Removal Calculator
   Color palette: Deep forest green + warm amber
============================================ */

:root {
  --green-900: #1a2e1a;
  --green-800: #1e3a1e;
  --green-700: #2d5a2d;
  --green-600: #3a7a3a;
  --green-500: #4a9a4a;
  --green-400: #5fb85f;
  --green-100: #e8f5e8;
  --amber-600: #c8800a;
  --amber-500: #e8960c;
  --amber-400: #f4aa20;
  --amber-100: #fff8e8;
  --gray-900: #1a1a1a;
  --gray-800: #2d2d2d;
  --gray-700: #444;
  --gray-600: #666;
  --gray-400: #999;
  --gray-200: #e5e5e5;
  --gray-100: #f5f5f5;
  --white: #fff;
  --red-500: #e53e3e;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.18);
  --radius: 10px;
  --radius-lg: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Source Sans 3', Arial, sans-serif;
  font-size: 16px;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.65;
}

/* TYPOGRAPHY */
h1, h2, h3, h4 {
  font-family: 'Oswald', 'Arial Narrow', Arial, sans-serif;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 600; }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); font-weight: 600; }

a { color: var(--green-600); text-decoration: none; }
a:hover { color: var(--green-500); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ============================================
   NAVBAR
============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  padding: 20px 0;
  transition: background 0.3s, padding 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
  background: var(--green-900);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  min-width: 0;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 1.4rem;
  color: var(--amber-400);
}

.logo-text {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-accent { color: var(--amber-400); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links li a {
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}

.nav-links li a:hover { color: var(--white); background: rgba(255,255,255,0.1); }

.nav-cta {
  background: var(--amber-500) !important;
  color: var(--gray-900) !important;
  font-weight: 700 !important;
  border-radius: 6px !important;
  padding: 10px 18px !important;
}

.nav-cta:hover { background: var(--amber-400) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ============================================
   HERO
============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20, 45, 20, 0.82) 0%, rgba(20, 45, 20, 0.65) 100%);
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 24px 80px;
  color: var(--white);
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  background: rgba(232, 150, 12, 0.25);
  border: 1px solid var(--amber-400);
  color: var(--amber-400);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 20px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.88);
  max-width: 640px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--amber-400);
}

.stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-hero {
  display: inline-block;
  background: var(--amber-500);
  color: var(--gray-900);
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 16px 36px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(232, 150, 12, 0.4);
}

.btn-hero:hover {
  background: var(--amber-400);
  color: var(--gray-900);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(232, 150, 12, 0.5);
}

/* ============================================
   TRUST BAR
============================================ */
.trust-bar {
  background: var(--green-800);
  padding: 16px 0;
  border-bottom: 2px solid var(--green-700);
}

.trust-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.88);
  font-size: 0.875rem;
  font-weight: 500;
}

.trust-icon {
  color: var(--amber-400);
  font-weight: 700;
}

/* ============================================
   SECTIONS
============================================ */
.section-header {
  text-align: center;
  margin-bottom: 52px;
}

.section-header h2 {
  margin-bottom: 12px;
  color: var(--green-800);
}

.section-header p {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 580px;
  margin: 0 auto;
}

/* ============================================
   CALCULATOR SECTION
============================================ */
.calculator-section {
  padding: 80px 0;
  background: var(--gray-100);
}

/* MODE TABS */
.calc-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  justify-content: center;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border: 2px solid var(--gray-200);
  background: var(--white);
  border-radius: var(--radius);
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-600);
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: var(--green-800);
  border-color: var(--green-800);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.tab-btn:hover:not(.active) {
  border-color: var(--green-600);
  color: var(--green-700);
}

.tab-icon { font-size: 1.1rem; }

/* CALCULATOR LAYOUT */
.calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}

/* INPUT PANEL */
.calc-input-panel {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.input-mode { display: none; }
.input-mode.active { display: block; }

.mode-intro {
  margin-bottom: 24px;
}

.mode-intro h3 {
  color: var(--green-800);
  margin-bottom: 8px;
}

.mode-intro p {
  font-size: 0.9rem;
  color: var(--gray-600);
}

/* PHOTO UPLOAD */
.photo-upload-area {
  border: 2px dashed var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 20px;
  transition: border-color 0.2s;
  overflow: hidden;
}

.photo-upload-area:hover {
  border-color: var(--green-400);
}

.upload-visual {
  padding: 32px 24px;
  text-align: center;
}

.upload-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.upload-primary {
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.upload-secondary {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: 20px;
}

.upload-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-upload {
  background: var(--green-700);
  color: var(--white);
  border: none;
  border-radius: 6px;
  padding: 10px 24px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-upload:hover { background: var(--green-600); }

.photo-preview {
  position: relative;
}

.photo-preview img {
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  display: block;
}

.btn-change-photo {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.7);
  color: var(--white);
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 0.8rem;
  cursor: pointer;
}

/* ANALYSIS STATUS */
.analysis-status {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--green-100);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  color: var(--green-700);
}

.analysis-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--green-300);
  border-top-color: var(--green-700);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

/* PHOTO ANALYSIS RESULTS */
.photo-analysis-results {
  background: var(--green-100);
  border: 1px solid var(--green-400);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 20px;
}

.photo-analysis-results h4 {
  color: var(--green-800);
  margin-bottom: 14px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.analysis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.analysis-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.analysis-label {
  font-size: 0.75rem;
  color: var(--green-700);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.analysis-value {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--green-900);
}

.analysis-note {
  font-size: 0.8rem;
  color: var(--green-700);
  font-style: italic;
}

/* SHARED FIELDS */
.shared-fields { margin-top: 0; }

.field-group { margin-bottom: 22px; }

.field-label {
  display: block;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.field-label.required::after {
  content: ' *';
  color: var(--red-500);
}

.label-note {
  font-weight: 400;
  color: var(--gray-500);
  font-size: 0.8rem;
  margin-left: 6px;
}

.field-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: 'Source Sans 3', Arial, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field-input:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(74, 154, 74, 0.12);
}

/* SLIDER */
.slider-with-value {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--gray-200);
  border-radius: 3px;
  outline: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--green-700);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(45, 90, 45, 0.3);
  transition: background 0.2s;
}

.range-slider::-webkit-slider-thumb:hover { background: var(--green-500); }

.range-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--green-700);
  cursor: pointer;
  border: none;
}

.slider-number {
  width: 80px !important;
  flex-shrink: 0;
  text-align: center;
}

.field-unit {
  font-size: 0.85rem;
  color: var(--gray-500);
  font-weight: 600;
  width: 20px;
  flex-shrink: 0;
}

.height-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 0.7rem;
  color: var(--gray-400);
}

/* RADIO CARDS */
.radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.radio-card { cursor: pointer; }
.radio-card input { display: none; }

.radio-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  transition: all 0.2s;
}

.radio-card input:checked + .radio-label {
  border-color: var(--green-500);
  background: var(--green-100);
}

.radio-indicator {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--gray-400);
  flex-shrink: 0;
  margin-top: 2px;
  transition: all 0.2s;
}

.radio-card input:checked + .radio-label .radio-indicator {
  border-color: var(--green-500);
  background: var(--green-500);
  box-shadow: inset 0 0 0 3px white;
}

.radio-text strong { display: block; font-size: 0.875rem; }
.radio-text small { font-size: 0.75rem; color: var(--gray-500); }

/* SELECT CARDS */
.select-group {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.select-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 10px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
}

.select-card.active, .select-card:hover {
  border-color: var(--green-500);
  background: var(--green-100);
}

.select-icon { font-size: 1.3rem; }
.select-card strong { font-size: 0.8rem; }
.select-card small { font-size: 0.72rem; color: var(--gray-500); line-height: 1.3; }

/* CHECKBOXES */
.checkbox-group { display: flex; flex-direction: column; gap: 12px; }

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

.checkbox-item input { display: none; }

.checkbox-custom {
  width: 20px;
  height: 20px;
  border: 2px solid var(--gray-300);
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
  transition: all 0.2s;
  position: relative;
}

.checkbox-item input:checked + .checkbox-custom {
  background: var(--green-600);
  border-color: var(--green-600);
}

.checkbox-item input:checked + .checkbox-custom::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 7px;
  height: 12px;
  border-right: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(45deg);
}

.checkbox-text strong { display: block; font-size: 0.9rem; }
.checkbox-text small { font-size: 0.8rem; color: var(--gray-500); }

/* CALCULATE BUTTON */
.btn-calculate {
  width: 100%;
  background: var(--green-800);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 16px 24px;
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
}

.btn-calculate:hover {
  background: var(--green-700);
  transform: translateY(-1px);
}

.btn-arrow { font-size: 1.1rem; transition: transform 0.2s; }
.btn-calculate:hover .btn-arrow { transform: translateX(4px); }

/* ============================================
   RESULTS PANEL
============================================ */
.calc-results-panel {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  min-height: 500px;
  display: flex;
  flex-direction: column;
}

.results-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
  color: var(--gray-500);
  min-height: 400px;
}

.placeholder-icon { font-size: 3.5rem; margin-bottom: 16px; }

.results-placeholder h3 {
  color: var(--gray-700);
  margin-bottom: 10px;
}

.results-placeholder p {
  font-size: 0.9rem;
  max-width: 300px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.sample-range {
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 10px 20px;
  font-size: 0.85rem;
  color: var(--gray-600);
}

/* RESULTS CONTENT */
.results-content { display: flex; flex-direction: column; gap: 20px; }

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--green-100);
}

.results-header h3 {
  color: var(--green-800);
}

.results-zip {
  background: var(--green-100);
  color: var(--green-700);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
}

/* ESTIMATE MAIN */
.estimate-main {
  background: linear-gradient(135deg, var(--green-800), var(--green-700));
  border-radius: var(--radius-lg);
  padding: 28px;
  color: var(--white);
}

.estimate-range {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.range-item {
  flex: 1;
  text-align: center;
  min-width: 100px;
}

.range-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 6px;
}

.range-value {
  display: block;
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--white);
}

.range-item.high .range-value { color: var(--amber-400); }

.range-divider {
  color: rgba(255,255,255,0.5);
  font-size: 1rem;
}

.estimate-midpoint {
  text-align: center;
  padding: 14px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius);
  margin-bottom: 14px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
}

.estimate-midpoint strong {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.5rem;
  color: var(--amber-400);
  margin-left: 8px;
}

.estimate-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.size-badge, .regional-badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
}

.size-badge {
  background: rgba(255,255,255,0.2);
  color: var(--white);
}

.regional-badge {
  background: rgba(232, 150, 12, 0.25);
  color: var(--amber-400);
  border: 1px solid rgba(232, 150, 12, 0.4);
}

/* STUMP SECTION */
.stump-section {
  background: var(--amber-100);
  border: 1px solid var(--amber-400);
  border-radius: var(--radius);
  padding: 18px;
}

.stump-section h4 {
  color: var(--amber-600);
  margin-bottom: 8px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stump-range {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 6px;
}

.total-with-stump {
  font-size: 0.9rem;
  color: var(--gray-700);
}

.total-with-stump strong {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.2rem;
  color: var(--green-800);
}

/* BREAKDOWN */
.breakdown-section { border-top: 1px solid var(--gray-200); padding-top: 16px; }

.breakdown-toggle {
  background: none;
  border: none;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--green-700);
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.breakdown-detail {
  margin-top: 14px;
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 16px;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.875rem;
}

.breakdown-row:last-child { border-bottom: none; }
.breakdown-row.highlight span:last-child { font-weight: 700; color: var(--green-700); }

/* RECOMMENDATIONS */
.recommendations-section h4 {
  color: var(--green-800);
  margin-bottom: 12px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.recommendations-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.recommendations-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--gray-700);
}

.recommendations-list li::before {
  content: '✓';
  color: var(--green-500);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* DISCLAIMER */
.results-disclaimer {
  font-size: 0.78rem;
  color: var(--gray-500);
  font-style: italic;
  border-top: 1px solid var(--gray-200);
  padding-top: 14px;
  line-height: 1.5;
}

/* RESULTS CTA */
.results-cta {
  background: var(--green-100);
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
}

.results-cta p {
  font-size: 0.875rem;
  color: var(--green-800);
  margin-bottom: 12px;
}

.btn-recalculate {
  background: var(--green-700);
  color: var(--white);
  border: none;
  border-radius: 6px;
  padding: 10px 24px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-recalculate:hover { background: var(--green-600); }

/* LOADING / ERROR */
.results-loading, .results-error {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 16px;
  min-height: 300px;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--green-100);
  border-top-color: var(--green-600);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.results-error .error-icon { font-size: 2rem; color: var(--amber-500); }

/* ============================================
   HOW IT WORKS
============================================ */
.how-it-works {
  padding: 80px 0;
  background: var(--white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  position: relative;
  transition: box-shadow 0.2s, transform 0.2s;
}

.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.step-number {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--green-100);
  position: absolute;
  top: 12px;
  right: 16px;
  line-height: 1;
}

.step-icon { font-size: 2rem; margin-bottom: 14px; }

.step-card h3 {
  color: var(--green-800);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.step-card p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ============================================
   COST FACTORS
============================================ */
.cost-factors {
  padding: 80px 0;
  background: var(--gray-100);
}

.factors-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: start;
}

.factors-content { display: flex; flex-direction: column; gap: 24px; }

.factor-item {
  background: var(--white);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.factor-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.factor-icon { font-size: 1.2rem; }
.factor-header h3 { font-size: 1rem; color: var(--green-800); }

.factor-impact {
  margin-left: auto;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.factor-impact.high { background: #fde8e8; color: var(--red-500); }
.factor-impact.medium { background: var(--amber-100); color: var(--amber-600); }

.factor-item p { font-size: 0.875rem; color: var(--gray-600); line-height: 1.6; }

.factors-visual img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  height: 240px;
  object-fit: cover;
}

.cost-table {
  background: var(--white);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.cost-table h4 {
  color: var(--green-800);
  margin-bottom: 14px;
  font-size: 1rem;
}

.cost-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.cost-table th {
  background: var(--green-800);
  color: var(--white);
  padding: 10px 12px;
  text-align: left;
  font-family: 'Source Sans 3', Arial, sans-serif;
  font-weight: 600;
}

.cost-table th:first-child { border-radius: 6px 0 0 0; }
.cost-table th:last-child { border-radius: 0 6px 0 0; }

.cost-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-700);
}

.cost-table tr:nth-child(even) td { background: var(--gray-100); }
.cost-table tr:last-child td { border-bottom: none; }
.cost-table td:last-child { font-weight: 600; color: var(--green-700); }

.table-note {
  font-size: 0.78rem;
  color: var(--gray-500);
  font-style: italic;
  margin-top: 10px;
}

/* ============================================
   SERVICES SECTION
============================================ */
.services-section {
  padding: 80px 0;
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.service-body { padding: 22px; }
.service-body h3 { color: var(--green-800); margin-bottom: 8px; }

.service-price {
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--amber-600);
  margin-bottom: 10px;
}

.service-body p { font-size: 0.875rem; color: var(--gray-600); line-height: 1.6; }

/* ============================================
   FAQ
============================================ */
.faq-section {
  padding: 80px 0;
  background: var(--gray-100);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--green-800);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background 0.15s;
}

.faq-question:hover { background: var(--green-100); }

.faq-icon {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--green-500);
  flex-shrink: 0;
  transition: transform 0.2s;
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  display: none;
  padding: 0 24px 20px;
}

.faq-item.open .faq-answer { display: block; }

.faq-answer p {
  font-size: 0.9rem;
  color: var(--gray-700);
  line-height: 1.7;
}

/* ============================================
   FINAL CTA
============================================ */
.final-cta {
  background: linear-gradient(135deg, var(--green-900), var(--green-800));
  padding: 80px 0;
  text-align: center;
  color: var(--white);
}

.final-cta h2 {
  color: var(--white);
  margin-bottom: 16px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.final-cta p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

/* ============================================
   FOOTER
============================================ */
.footer {
  background: var(--gray-900);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.6);
}

.footer-links h4 {
  color: var(--white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links ul li a {
  color: rgba(255,255,255,0.6);
  font-size: 0.875rem;
  transition: color 0.2s;
}
.footer-links ul li a:hover { color: var(--amber-400); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px;
  text-align: center;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  max-width: 1200px;
  margin: 0 auto;
}

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 1024px) {
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .factors-layout { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--green-900);
    flex-direction: column;
    padding: 16px 24px;
    gap: 4px;
    box-shadow: var(--shadow-md);
  }

  .nav-links.open { display: flex; }
  .nav-links li a { display: block; padding: 12px 16px; }

  .hero-content { padding: 100px 24px 60px; }
  .hero-stats { gap: 20px; }

  .calc-tabs { flex-direction: column; }
  .tab-btn { justify-content: center; }

  .calculator-wrapper { grid-template-columns: 1fr; }
  .calc-results-panel { min-height: auto; }

  .radio-group { grid-template-columns: 1fr 1fr; }
  .select-group { grid-template-columns: 1fr 1fr 1fr; }

  .steps-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .services-grid { grid-template-columns: 1fr; }

  .footer-container { grid-template-columns: 1fr; gap: 32px; }

  .trust-container { gap: 12px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.9rem; }
  .hero-subtitle { font-size: 0.95rem; }
  .hero-stats { flex-direction: column; gap: 12px; }

  .calc-input-panel, .calc-results-panel { padding: 20px; }

  .radio-group { grid-template-columns: 1fr; }
  .select-group { grid-template-columns: 1fr; }

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

  .estimate-range { flex-direction: column; gap: 12px; }

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