/* ===== CINEMATIC BACKGROUND SYSTEM ===== */
.cinema-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: -1;
  overflow: hidden;
}
.cinema-layer {
  position: absolute;
  top: -10%; left: -5%;
  width: 110%; height: 120%;
  will-change: transform;
}
.cinema-video video {
  width: 100%; height: 100%;
  object-fit: cover;
}
.cinema-video .cinema-fallback {
  display: none;
  width: 100%; height: 100%;
  object-fit: cover;
}
.cinema-depth {
  background-size: cover;
  background-position: center;
  opacity: 0;
  mix-blend-mode: soft-light;
  transition: opacity 2s ease;
}
.cinema-depth.loaded { opacity: 0.3; }
.cinema-overlay {
  background: linear-gradient(
    180deg,
    rgba(10, 22, 40, 0.80) 0%,
    rgba(10, 22, 40, 0.55) 20%,
    rgba(10, 22, 40, 0.60) 50%,
    rgba(10, 22, 40, 0.70) 75%,
    rgba(10, 22, 40, 0.90) 100%
  );
}
.cinema-grain {
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  animation: grain 0.5s steps(1) infinite;
}
@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-5%, -10%); }
  30% { transform: translate(3%, -15%); }
  50% { transform: translate(12%, 9%); }
  70% { transform: translate(9%, 4%); }
  90% { transform: translate(-1%, 7%); }
}

/* Mobile: hide video, show still image */
@media (max-width: 768px) {
  .cinema-video video { display: none; }
  .cinema-video .cinema-fallback { display: block; }
  .cinema-depth { display: none; }
  .cinema-grain { opacity: 0.03; }
}

/* Reduce motion preference */
@media (prefers-reduced-motion: reduce) {
  .cinema-video video { display: none; }
  .cinema-video .cinema-fallback { display: block; }
  .cinema-grain { animation: none; }
  .cinema-layer { will-change: auto; }
}

/* Make body and sections semi-transparent so video shows through */
body {
  background: transparent !important;
}

/* ===== DESIGN TOKENS ===== */
:root {
  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);

  /* Spacing (4px base) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'General Sans', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Helvetica Neue', sans-serif;
}

/* ===== LIGHT MODE (default) ===== */
:root, [data-theme="light"] {
  /* Surfaces */
  --color-bg:             rgba(248, 247, 244, 0.88);
  --color-surface:        rgba(255, 255, 255, 0.92);
  --color-surface-2:      rgba(241, 240, 236, 0.90);
  --color-surface-offset: #EBE9E4;
  --color-divider:        #D8D5CE;
  --color-border:         #CBC8C0;

  /* Text */
  --color-text:           #0A1628;
  --color-text-secondary: #3D4A5C;
  --color-text-muted:     #6B7280;
  --color-text-faint:     #9CA3AF;
  --color-text-inverse:   #F8F7F4;

  /* Navy (primary brand) */
  --color-navy:           #0A1628;
  --color-navy-light:     #162240;
  --color-navy-lighter:   #1E2D4F;

  /* Amber accent (CTAs, highlights) */
  --color-accent:         #D4872C;
  --color-accent-hover:   #BF7624;
  --color-accent-active:  #A8671E;
  --color-accent-light:   #F5E6D3;

  /* Functional */
  --color-success:        #2D7A3A;
  --color-warning:        #C4760A;
  --color-error:          #C23B22;

  /* Shadows (warm-tinted) */
  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 80 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 80 / 0.12);
  --shadow-xl: 0 20px 48px oklch(0.2 0.01 80 / 0.16);
}

/* ===== DARK MODE ===== */
[data-theme="dark"] {
  --color-bg:             #0A1628;
  --color-surface:        #0F1D33;
  --color-surface-2:      #162240;
  --color-surface-offset: #1A2847;
  --color-divider:        #243352;
  --color-border:         #2E3F62;

  --color-text:           #E2E0DC;
  --color-text-secondary: #B0ADA6;
  --color-text-muted:     #7E8A9A;
  --color-text-faint:     #4D5A6E;
  --color-text-inverse:   #0A1628;

  --color-navy:           #E2E0DC;
  --color-navy-light:     #B0ADA6;
  --color-navy-lighter:   #7E8A9A;

  --color-accent:         #E9A04A;
  --color-accent-hover:   #F0B56A;
  --color-accent-active:  #D4872C;
  --color-accent-light:   #1E2D4F;

  --color-success:        #4CAF6A;
  --color-warning:        #E9A04A;
  --color-error:          #E06050;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.45);
  --shadow-xl: 0 20px 48px oklch(0 0 0 / 0.55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #0A1628;
    --color-surface:        #0F1D33;
    --color-surface-2:      #162240;
    --color-surface-offset: #1A2847;
    --color-divider:        #243352;
    --color-border:         #2E3F62;
    --color-text:           #E2E0DC;
    --color-text-secondary: #B0ADA6;
    --color-text-muted:     #7E8A9A;
    --color-text-faint:     #4D5A6E;
    --color-text-inverse:   #0A1628;
    --color-navy:           #E2E0DC;
    --color-navy-light:     #B0ADA6;
    --color-navy-lighter:   #7E8A9A;
    --color-accent:         #E9A04A;
    --color-accent-hover:   #F0B56A;
    --color-accent-active:  #D4872C;
    --color-accent-light:   #1E2D4F;
    --color-success:        #4CAF6A;
    --color-warning:        #E9A04A;
    --color-error:          #E06050;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.25);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.35);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.45);
    --shadow-xl: 0 20px 48px oklch(0 0 0 / 0.55);
  }
}

/* ===== GLOBAL TYPOGRAPHY ===== */
h1, h2, h3 { font-family: var(--font-display); }
h1 { font-size: var(--text-2xl); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: var(--text-xl); font-weight: 600; letter-spacing: -0.01em; color: var(--color-navy); }
h3 { font-size: var(--text-lg); font-weight: 600; }

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }

/* ===== LAYOUT ===== */
.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.section {
  padding-block: clamp(var(--space-10), 6vw, var(--space-24));
}

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 100;
  text-decoration: none;
}
.skip-link:focus {
  top: var(--space-2);
}

/* ===== NAV ===== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-3) 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
}
.nav-logo:hover { text-decoration: none; color: #fff; }

.nav-logo svg { flex-shrink: 0; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-weight: 500;
}
.nav-links a:hover { color: #fff; text-decoration: none; }

.theme-toggle {
  padding: var(--space-2);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-2); }

@media (max-width: 640px) {
  .nav-links { gap: var(--space-3); }
  .nav-links a { font-size: var(--text-xs); }
}

/* ===== HERO ===== */
.hero {
  background: rgba(10, 22, 40, 0.40);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-text-inverse);
  padding: clamp(var(--space-12), 8vw, var(--space-32)) 0 clamp(var(--space-10), 6vw, var(--space-24));
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .hero {
  background: linear-gradient(180deg, var(--color-surface-offset) 0%, var(--color-surface) 100%);
  border-bottom: 1px solid var(--color-divider);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 120px,
      rgba(255, 255, 255, 0.02) 120px,
      rgba(255, 255, 255, 0.02) 121px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 120px,
      rgba(255, 255, 255, 0.02) 120px,
      rgba(255, 255, 255, 0.02) 121px
    );
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero h1 {
  color: #FFFFFF;
  max-width: 18ch;
  margin-bottom: var(--space-4);
}

.hero-subtitle {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.72);
  max-width: 52ch;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  border: none;
  line-height: 1.4;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #FFFFFF;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
  color: #FFFFFF;
}
.btn-primary:active { background: var(--color-accent-active); }

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.16);
  text-decoration: none;
  color: #FFFFFF;
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}
.btn-outline:hover {
  background: var(--color-accent);
  color: #FFFFFF;
  text-decoration: none;
}

/* ===== SECTION: CONCEPT ===== */
.concept-section { background: rgba(248, 247, 244, 0.88); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }

.concept-grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .concept-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-12);
    align-items: start;
  }
}

.concept-prose p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.75;
}

.concept-prose strong { color: var(--color-text); }

.causes-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.causes-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.causes-list .cause-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  color: var(--color-accent);
}

.key-numbers {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.key-numbers h3 {
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.key-numbers-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.kn-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.kn-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-accent);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.kn-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.kn-highlight {
  margin-top: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 500;
  line-height: 1.5;
}

[data-theme="dark"] .kn-highlight {
  background: oklch(from var(--color-accent) l c h / 0.12);
}

/* ===== CALCULATOR ===== */
.calculator-section {
  background: rgba(241, 240, 236, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.calc-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 4vw, var(--space-10));
  box-shadow: var(--shadow-lg);
  max-width: 720px;
  margin-inline: auto;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.calc-intro {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  line-height: 1.6;
}

.calc-inputs {
  display: grid;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

@media (min-width: 600px) {
  .calc-inputs { grid-template-columns: 1fr 1fr 1fr; }
}
@media (min-width: 600px) and (max-width: 899px) {
  .calc-inputs { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 900px) {
  .calc-inputs { grid-template-columns: 1fr 1fr 1fr; }
}

.calc-field label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.calc-field .field-hint {
  display: block;
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.calc-field input[type="number"] {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-variant-numeric: tabular-nums;
  color: var(--color-text);
  -moz-appearance: textfield;
}
.calc-field input[type="number"]::-webkit-inner-spin-button,
.calc-field input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.calc-field input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(212, 135, 44, 0.15);
}

.calc-outputs {
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-6);
  display: grid;
  gap: var(--space-5);
}

.calc-total {
  text-align: center;
  padding: var(--space-6);
  background: var(--color-navy);
  border-radius: var(--radius-lg);
  color: #FFFFFF;
}

[data-theme="dark"] .calc-total {
  background: var(--color-surface-offset);
}

.calc-total-label {
  font-size: var(--text-sm);
  opacity: 0.7;
  margin-bottom: var(--space-2);
}

.calc-total-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.calc-savings {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 500px) {
  .calc-savings { grid-template-columns: 1fr 1fr; }
}

.savings-card {
  padding: var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-divider);
}

.savings-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
  line-height: 1.4;
}

.savings-value {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-success);
  font-variant-numeric: tabular-nums;
}

.calc-disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-align: center;
  margin-top: var(--space-4);
  line-height: 1.5;
}

/* ===== PLAYBOOK ===== */
.playbook-section { background: rgba(248, 247, 244, 0.88); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }

.playbook-intro {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 60ch;
  line-height: 1.7;
}

.playbook-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  counter-reset: playbook;
}

.playbook-item {
  counter-increment: playbook;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  align-items: start;
}

.playbook-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  color: #FFFFFF;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.playbook-content h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--color-text);
}

.playbook-content p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ===== HUB CTA ===== */
.hub-cta-section {
  background: rgba(10, 22, 40, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  text-align: center;
}

[data-theme="dark"] .hub-cta-section {
  background: var(--color-surface-offset);
}

.hub-cta-section h2 {
  color: #FFFFFF;
  margin-bottom: var(--space-4);
}

.hub-cta-section p {
  color: rgba(255, 255, 255, 0.72);
  max-width: 52ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  line-height: 1.7;
  font-size: var(--text-base);
}

.hub-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

/* ===== FAQ ===== */
.faq-section { background: rgba(248, 247, 244, 0.88); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }

.faq-list {
  max-width: 720px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  transition: transform 200ms ease;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(-135deg);
}

.faq-item summary:hover { color: var(--color-accent); }

.faq-answer {
  padding: 0 var(--space-5) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===== FOOTER ===== */
.site-footer {
  background: rgba(10, 22, 40, 0.92);
  color: rgba(255,255,255,0.6);
  border-top: 1px solid var(--color-divider);
  padding: var(--space-8) 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer-brand {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  list-style: none;
}

.footer-links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  text-decoration: none;
}
.footer-links a:hover { color: #fff; text-decoration: none; }

/* ===== UTILITY ===== */
.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.hero .section-label { color: rgba(255, 255, 255, 0.5); }

/* ===== CALCULATOR: EXTRA STYLES ===== */
.calc-total--savings {
  background: var(--color-success);
}
[data-theme="dark"] .calc-total--savings {
  background: rgba(76, 175, 106, 0.2);
  border: 1px solid var(--color-success);
}
.savings-value--neutral {
  color: var(--color-text);
}
.calc-validation-msg {
  font-size: var(--text-xs);
  color: var(--color-warning);
  margin-top: var(--space-1);
  min-height: 1.2em;
}

/* ===== HUB CTA LABEL ===== */
.hub-cta-label {
  color: rgba(255, 255, 255, 0.4);
}

/* ===== EMAIL CAPTURE ===== */
.email-capture-section {
  background: rgba(241, 240, 236, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.email-capture-card {
  max-width: 560px;
  margin-inline: auto;
  text-align: center;
}
.email-capture-card h2 {
  margin-bottom: var(--space-3);
}
.email-capture-card > p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.7;
}
.email-form-row {
  display: flex;
  gap: var(--space-2);
}
.email-form-row input[type="email"] {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  min-width: 0;
}
.email-form-row input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(212, 135, 44, 0.15);
}
.email-form-row input[type="email"]::placeholder {
  color: var(--color-text-faint);
}
.email-capture-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}
@media (max-width: 480px) {
  .email-form-row {
    flex-direction: column;
  }
}

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  color: var(--color-text-muted);
  text-decoration: none;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, color 0.2s ease;
  z-index: 40;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover {
  color: var(--color-text);
  text-decoration: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .hero h1 { font-size: clamp(1.75rem, 1.2rem + 2.5vw, 2.5rem); }
  .playbook-item { gap: var(--space-3); }
  .playbook-number { width: 30px; height: 30px; font-size: var(--text-xs); }
  .calc-inputs { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
  .back-to-top { bottom: var(--space-4); right: var(--space-4); }
}