/* =====================================================================
   STYLE.CSS — Blueprint | 6knights.com
   Manifesto for a Better Britain
   Dark theme — architectural, precise, independent
   ===================================================================== */

:root {
  /* — Color Palette (Blueprint) — */
  --color-bg:               #0F0F1A;
  --color-surface:          #161625;
  --color-surface-2:        #1C1C30;
  --color-surface-offset:   #121220;
  --color-divider:          rgba(255, 255, 255, 0.10);
  --color-border:           rgba(255, 255, 255, 0.12);

  /* — Text — */
  --color-text:             #F0EDE8;
  --color-text-secondary:   rgba(240, 237, 232, 0.72);
  --color-text-muted:       rgba(240, 237, 232, 0.45);

  /* — Primary Accent (Blueprint Blue) — */
  --color-primary:          #3B82F6;
  --color-primary-hover:    #60A5FA;
  --color-primary-active:   #2563EB;
  --color-primary-glow:     rgba(59, 130, 246, 0.20);

  /* — Secondary Accent (Warm Gold) — */
  --color-secondary:        #F59E0B;
  --color-secondary-hover:  #FBBF24;

  /* — Status — */
  --color-success:          #22C55E;
  --color-warning:          #F59E0B;
  --color-error:            #EF4444;

  /* — Card / Glass — */
  --color-card-bg:          rgba(22, 22, 37, 0.6);
  --color-card-border:      rgba(255, 255, 255, 0.07);
  --color-card-bg-hover:    rgba(28, 28, 48, 0.8);

  /* — Typography — */
  --font-display:           'DM Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-body:              'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* — Type Scale (fluid) — */
  --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);
  --text-3xl:   clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero:  clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* — Spacing — */
  --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;

  /* — Radii — */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

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

  /* — Shadows — */
  --shadow-sm:  0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg:  0 12px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);

  /* — Content Widths — */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* ─── Global ─── */
body { font-family: var(--font-body); color: var(--color-text); background-color: var(--color-bg); }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-display); color: var(--color-text); font-weight: 700; }
h1 { font-size: var(--text-3xl); font-weight: 900; text-transform: uppercase; letter-spacing: 0.02em; line-height: 1.05; }
h2 { font-size: var(--text-xl); font-weight: 700; line-height: 1.15; }
h3 { font-size: var(--text-lg); font-weight: 600; line-height: 1.25; }
h4 { font-size: var(--text-base); font-weight: 600; line-height: 1.35; }
p { color: var(--color-text-secondary); line-height: 1.7; margin-bottom: var(--space-4); }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-interactive); }
a:hover { color: var(--color-primary-hover); }
strong { color: var(--color-text); font-weight: 600; }
small { font-size: var(--text-xs); color: var(--color-text-muted); }

/* ─── Layout ─── */
.container { width: 100%; max-width: var(--content-wide); margin-inline: auto; padding-inline: var(--space-6); }
.section { padding-block: clamp(var(--space-20), 8vw, var(--space-32)); position: relative; }
.section-header { text-align: center; margin-bottom: clamp(var(--space-10), 4vw, var(--space-16)); }
.section-header h2 { margin-bottom: var(--space-4); }
.section-header p { max-width: 640px; margin-inline: auto; color: var(--color-text-muted); font-size: var(--text-lg); }
.section-kpi { padding-block: var(--space-12); background: var(--color-surface); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.section-dark { background: var(--color-surface); }

/* ─── Navigation ─── */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(15, 15, 26, 0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--color-divider); padding-block: var(--space-4); }
.nav .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: var(--space-3); font-family: var(--font-display); font-weight: 900; font-size: var(--text-lg); color: var(--color-text); text-decoration: none; text-transform: uppercase; letter-spacing: 0.05em; }
.nav-logo:hover { color: var(--color-primary); }
.nav-logo-text { font-family: var(--font-display); font-weight: 900; font-size: var(--text-base); text-transform: uppercase; letter-spacing: 0.08em; }
.nav-links { display: flex; align-items: center; gap: var(--space-8); list-style: none; }
.nav-links a { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-secondary); text-decoration: none; padding: var(--space-2) 0; position: relative; transition: color var(--transition-interactive); }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--color-primary); transition: width var(--transition-interactive); }
.nav-links a:hover, .nav-links a.active { color: var(--color-text); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 44px; height: 44px; align-items: center; justify-content: center; cursor: pointer; background: none; border: none; padding: 0; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--color-text); border-radius: var(--radius-full); transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out); }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-scrolled { background: rgba(15, 15, 26, 0.95) !important; box-shadow: 0 2px 12px rgba(0,0,0,0.4); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links { position: fixed; top: 0; right: 0; width: min(300px, 80vw); height: 100dvh; flex-direction: column; justify-content: flex-start; padding: var(--space-20) var(--space-8) var(--space-8); background: var(--color-surface-offset); border-left: 1px solid var(--color-divider); transform: translateX(100%); transition: transform 0.3s var(--ease-out); z-index: 100; }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: var(--text-base); padding: var(--space-3) 0; }
}

/* ─── Hero ─── */
.hero { position: relative; min-height: 100vh; min-height: 100dvh; display: flex; align-items: center; justify-content: center; text-align: center; overflow: hidden; }
.hero-overlay { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 40%, rgba(59,130,246,0.06), transparent 70%), linear-gradient(180deg, rgba(15,15,26,0.3) 0%, var(--color-bg) 100%); z-index: 1; }
.hero-content { position: relative; z-index: 2; max-width: 900px; padding: var(--space-8); }
.hero-preheading { font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.2em; color: var(--color-primary); font-weight: 600; margin-bottom: var(--space-4); }
.hero-title { font-family: var(--font-display); font-size: var(--text-3xl); font-weight: 900; text-transform: uppercase; letter-spacing: 0.02em; line-height: 1.05; margin-bottom: var(--space-6); color: var(--color-text); }
.hero-subtitle { font-size: var(--text-lg); color: var(--color-text-secondary); max-width: 600px; margin-inline: auto; margin-bottom: var(--space-4); line-height: 1.6; }
.hero-edition { font-size: var(--text-sm); color: var(--color-text-muted); max-width: 500px; margin-inline: auto; margin-bottom: var(--space-8); line-height: 1.5; }
.hero-actions { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }

/* ─── Buttons ─── */
.btn { display: inline-flex; align-items: center; justify-content: 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; text-transform: uppercase; letter-spacing: 0.05em; text-decoration: none; border-radius: var(--radius-md); border: 2px solid transparent; cursor: pointer; min-height: 44px; transition: all var(--transition-interactive); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); box-shadow: var(--shadow-glow); color: #fff; }
.btn-secondary { background: transparent; color: var(--color-text); border-color: rgba(255, 255, 255, 0.25); }
.btn-secondary:hover { border-color: var(--color-text); background: rgba(255, 255, 255, 0.05); color: var(--color-text); }
.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); min-height: 36px; }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); min-height: 52px; }

/* ─── Grids ─── */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(220px, 100%), 1fr)); gap: var(--space-6); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.topic-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(350px, 100%), 1fr)); gap: var(--space-6); }
@media (max-width: 768px) { .grid-2 { grid-template-columns: 1fr; } }

/* ─── KPI Cards ─── */
.kpi-card { background: var(--color-card-bg); backdrop-filter: blur(12px); border: 1px solid var(--color-card-border); border-radius: var(--radius-lg); padding: var(--space-6); text-align: center; }
.kpi-value { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 900; color: var(--color-primary); line-height: 1.1; margin-bottom: var(--space-2); }
.kpi-label { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.4; }

/* ─── Cards ─── */
.card { background: var(--color-card-bg); backdrop-filter: blur(12px); border: 1px solid var(--color-card-border); border-radius: var(--radius-lg); padding: var(--space-6); position: relative; overflow: hidden; }

/* ─── Stat Highlight ─── */
.stat-highlight { color: var(--color-primary); font-family: var(--font-display); font-weight: 900; }

/* ─── Charts ─── */
.chart-container { background: var(--color-card-bg); backdrop-filter: blur(12px); border: 1px solid var(--color-card-border); border-radius: var(--radius-lg); padding: var(--space-6); }
.chart-header { margin-bottom: var(--space-4); }
.chart-title { font-size: var(--text-base); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-1); }
.chart-subtitle { font-size: var(--text-xs); color: var(--color-text-muted); }
.chart-row { margin-bottom: var(--space-8); }
.chart-container canvas { max-height: 280px !important; }

/* ─── Data Table ─── */
.data-table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.data-table thead { background: var(--color-primary); color: #fff; }
.data-table th { padding: var(--space-3) var(--space-4); text-align: left; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; font-size: var(--text-xs); }
.data-table th:first-child { border-radius: var(--radius-md) 0 0 0; }
.data-table th:last-child { border-radius: 0 var(--radius-md) 0 0; }
.data-table td { padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-divider); color: var(--color-text-secondary); }
.data-table tbody tr { background: rgba(22, 22, 37, 0.3); transition: background var(--transition-interactive); }
.data-table tbody tr:nth-child(even) { background: rgba(22, 22, 37, 0.5); }
.data-table tbody tr:hover { background: rgba(59, 130, 246, 0.08); }
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-lg); }

/* ─── Section Label ─── */
.section-label { display: inline-block; font-size: var(--text-xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.2em; color: var(--color-primary); margin-bottom: var(--space-3); padding: var(--space-1) var(--space-4); border: 1px solid rgba(59,130,246,0.3); border-radius: var(--radius-full); background: rgba(59,130,246,0.08); }

/* ─── Structure Grid ─── */
.structure-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }
@media (max-width: 900px) { .structure-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .structure-grid { grid-template-columns: 1fr; } }
.structure-card { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-6); background: var(--color-card-bg); border: 1px solid var(--color-card-border); border-radius: var(--radius-lg); text-decoration: none; transition: border-color var(--transition-interactive), transform var(--transition-interactive), background var(--transition-interactive); }
.structure-card:hover { border-color: rgba(59,130,246,0.4); transform: translateY(-3px); background: var(--color-card-bg-hover); }
.structure-number { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 900; color: var(--color-primary); opacity: 0.35; line-height: 1; }
.structure-title { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); }
.structure-desc { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 0; }
.structure-pages { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }

/* ─── Pull Quote ─── */
.pull-quote { font-size: clamp(1.25rem, 1rem + 1vw, 1.75rem); font-style: italic; text-align: center; max-width: 800px; margin-inline: auto; margin-bottom: var(--space-12); padding: var(--space-6); border-left: none; color: rgba(240,237,232,0.9); line-height: 1.5; position: relative; }
.pull-quote::before { content: '\201C'; position: absolute; top: -0.5em; left: 50%; transform: translateX(-50%); font-size: 4rem; color: var(--color-primary); opacity: 0.3; font-style: normal; font-family: var(--font-display); line-height: 1; }
blockquote { border-left: 3px solid var(--color-primary); padding-left: var(--space-6); margin-block: var(--space-6); font-size: var(--text-lg); color: var(--color-text-secondary); font-style: italic; }

/* ─── Crisis Grid ─── */
.crisis-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); margin-bottom: var(--space-12); }
@media (max-width: 768px) { .crisis-grid { grid-template-columns: 1fr; } }
.crisis-card { padding: var(--space-6); background: rgba(255,255,255,0.02); border: 1px solid var(--color-divider); border-radius: var(--radius-lg); transition: border-color var(--transition-interactive), background var(--transition-interactive); }
.crisis-card:hover { border-color: rgba(59,130,246,0.3); background: rgba(59,130,246,0.03); }
.crisis-icon { color: var(--color-primary); margin-bottom: var(--space-4); }
.crisis-card h3 { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-3); }
.crisis-card p { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.65; margin-bottom: var(--space-4); }
.crisis-stat { display: flex; align-items: baseline; gap: var(--space-3); padding-top: var(--space-3); border-top: 1px solid var(--color-divider); }
.crisis-stat-value { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 900; color: var(--color-primary); }
.crisis-stat-label { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* ─── Fiscal Section ─── */
.fiscal-section { margin-top: var(--space-12); padding-top: var(--space-12); border-top: 1px solid var(--color-divider); }
.fiscal-headline { text-align: center; margin-bottom: var(--space-10); }
.fiscal-big-number { font-family: var(--font-display); font-size: clamp(3rem, 2rem + 5vw, 6rem); font-weight: 900; color: var(--color-error); line-height: 1; margin-bottom: var(--space-4); }
.fiscal-unit { font-size: 0.4em; color: var(--color-error); opacity: 0.7; vertical-align: baseline; margin-left: 0.1em; }
.fiscal-context { font-size: var(--text-lg); color: var(--color-text-secondary); max-width: 700px; margin-inline: auto; line-height: 1.7; }

.spending-comparison { margin-top: var(--space-8); margin-bottom: var(--space-10); max-width: 800px; margin-inline: auto; }
.spending-title { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.spending-subtitle { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-6); }
.spending-bars { display: flex; flex-direction: column; gap: var(--space-4); }
.spending-bar-item { display: grid; grid-template-columns: 140px 1fr auto; align-items: center; gap: var(--space-4); }
@media (max-width: 600px) { .spending-bar-item { grid-template-columns: 100px 1fr auto; gap: var(--space-2); } }
.spending-bar-label { font-size: var(--text-sm); font-weight: 600; color: var(--color-text-secondary); text-align: right; }
.spending-bar-track { height: 28px; background: rgba(255,255,255,0.04); border-radius: var(--radius-md); overflow: hidden; }
.spending-bar-fill { height: 100%; border-radius: var(--radius-md); transition: width 1s var(--ease-out); }
.spending-bar-debt { background: linear-gradient(90deg, var(--color-error), #FF6B6B); }
.spending-bar-nhs { background: linear-gradient(90deg, var(--color-primary), #60A5FA); }
.spending-bar-defence { background: linear-gradient(90deg, #8B5CF6, #A78BFA); }
.spending-bar-education { background: linear-gradient(90deg, var(--color-secondary), #FBBF24); }
.spending-bar-value { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 700; color: var(--color-text); white-space: nowrap; min-width: 70px; }
.spending-note { font-weight: 400; font-size: var(--text-xs); color: var(--color-text-muted); }
.spending-punchline { margin-top: var(--space-6); font-size: var(--text-base); color: rgba(240,237,232,0.85); line-height: 1.7; padding: var(--space-5); background: rgba(239,68,68,0.06); border-left: 3px solid var(--color-error); border-radius: 0 var(--radius-md) var(--radius-md) 0; }

.growth-gap-section { margin-top: var(--space-10); }
.growth-gap-title { font-size: var(--text-xl); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-6); text-align: center; }
.growth-gap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
@media (max-width: 768px) { .growth-gap-grid { grid-template-columns: 1fr; } }
.growth-gap-card { padding: var(--space-6); background: rgba(59,130,246,0.04); border: 1px solid rgba(59,130,246,0.15); border-radius: var(--radius-lg); }
.growth-gap-icon { color: var(--color-primary); margin-bottom: var(--space-3); }
.growth-gap-value { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 900; color: var(--color-primary); line-height: 1.1; margin-bottom: var(--space-1); }
.growth-gap-label { font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-muted); margin-bottom: var(--space-3); }
.growth-gap-card p { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 0; }

.vicious-cycle { margin-top: var(--space-8); }
.vicious-cycle-inner { padding: var(--space-8); background: rgba(239,68,68,0.04); border: 1px solid rgba(239,68,68,0.18); border-radius: var(--radius-xl); max-width: 800px; margin-inline: auto; text-align: center; }
.vicious-cycle-inner h4 { font-size: var(--text-lg); font-weight: 700; color: var(--color-error); margin-bottom: var(--space-3); }
.vicious-cycle-inner p { font-size: var(--text-base); color: rgba(240,237,232,0.8); line-height: 1.7; margin-bottom: 0; }

/* ─── Trust Section ─── */
.trust-section { margin-top: var(--space-12); padding-top: var(--space-12); border-top: 1px solid var(--color-divider); }
.graveyard-section { margin-top: var(--space-10); }
.graveyard-title { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.graveyard-subtitle { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-6); }
.graveyard-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
@media (max-width: 900px) { .graveyard-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .graveyard-grid { grid-template-columns: 1fr; } }
.graveyard-card { padding: var(--space-5); background: rgba(239,68,68,0.03); border: 1px solid rgba(239,68,68,0.12); border-radius: var(--radius-lg); text-align: center; }
.graveyard-icon { font-size: 2rem; margin-bottom: var(--space-3); filter: grayscale(0.3); }
.graveyard-card h5 { font-size: var(--text-sm); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.graveyard-card p { font-size: var(--text-xs); color: var(--color-text-secondary); line-height: 1.5; margin-bottom: 0; }
.gap-callout { margin-top: var(--space-10); }
.gap-callout-inner { padding: var(--space-8); background: linear-gradient(135deg, rgba(59,130,246,0.06), rgba(245,158,11,0.04)); border: 1px solid rgba(59,130,246,0.18); border-radius: var(--radius-xl); max-width: 800px; margin-inline: auto; }
.gap-callout-inner h4 { font-size: var(--text-lg); font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-3); }
.gap-callout-inner p { font-size: var(--text-base); color: rgba(240,237,232,0.8); line-height: 1.7; margin-bottom: 0; }

/* ─── Implementation ─── */
.patterns-section { margin-bottom: var(--space-12); }
.patterns-heading { font-size: var(--text-xl); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-6); text-align: center; }
.patterns-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr)); gap: var(--space-5); }
.pattern-card { padding: var(--space-5); background: var(--color-card-bg); border: 1px solid var(--color-card-border); border-radius: var(--radius-lg); display: flex; flex-direction: column; gap: var(--space-2); }
.pattern-number { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 900; color: var(--color-error); opacity: 0.5; line-height: 1; }
.pattern-card h4 { font-size: var(--text-base); font-weight: 700; color: var(--color-text); }
.pattern-card p { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 0; }
.delivery-section { padding-top: var(--space-10); border-top: 1px solid var(--color-divider); }
.delivery-heading { font-size: var(--text-xl); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-3); text-align: center; }
.delivery-intro { font-size: var(--text-base); color: var(--color-text-muted); text-align: center; max-width: 640px; margin: 0 auto var(--space-8); }
.delivery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); gap: var(--space-5); }
.delivery-card { padding: var(--space-5); background: rgba(59,130,246,0.03); border: 1px solid rgba(59,130,246,0.12); border-radius: var(--radius-lg); display: flex; flex-direction: column; gap: var(--space-3); }
.delivery-icon { color: var(--color-primary); }
.delivery-card h4 { font-size: var(--text-base); font-weight: 700; color: var(--color-text); }
.delivery-card p { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 0; }

/* ─── Five Changes ─── */
.changes-grid { display: flex; flex-direction: column; gap: var(--space-6); }
.change-card { background: rgba(255,255,255,0.02); border: 1px solid var(--color-divider); border-radius: var(--radius-xl); overflow: hidden; transition: border-color var(--transition-interactive); }
.change-card:hover { border-color: rgba(59,130,246,0.3); }
.change-header { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-5) var(--space-6); background: rgba(59,130,246,0.05); border-bottom: 1px solid rgba(59,130,246,0.08); }
.change-number { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: var(--radius-full); background: var(--color-primary); color: #fff; font-family: var(--font-display); font-size: var(--text-lg); font-weight: 900; flex-shrink: 0; }
.change-title { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); }
.change-body { padding: var(--space-6); }
.change-body > p { font-size: var(--text-base); color: var(--color-text-secondary); line-height: 1.7; margin-bottom: var(--space-5); max-width: 80ch; }
.change-stats { display: flex; gap: var(--space-8); margin-bottom: var(--space-5); padding: var(--space-4) 0; border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.change-stat { display: flex; flex-direction: column; gap: var(--space-1); }
.change-stat-value { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 900; color: var(--color-primary); }
.change-stat-label { font-size: var(--text-xs); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.change-wolverhampton { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; padding: var(--space-4); background: rgba(59,130,246,0.03); border-left: 3px solid var(--color-primary); border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.change-wolverhampton strong { color: var(--color-primary); font-weight: 600; }
.interlock-section { margin-top: var(--space-10); }
.interlock-inner { padding: var(--space-8); background: linear-gradient(135deg, rgba(59,130,246,0.06), rgba(245,158,11,0.03)); border: 1px solid rgba(59,130,246,0.18); border-radius: var(--radius-xl); text-align: center; max-width: 800px; margin-inline: auto; }
.interlock-inner h3 { font-size: var(--text-lg); font-weight: 700; color: var(--color-primary); margin-bottom: var(--space-3); }
.interlock-inner p { font-size: var(--text-base); color: rgba(240,237,232,0.8); line-height: 1.7; margin-bottom: 0; }

/* ─── Debate Tiers ─── */
.tiers-section { display: flex; flex-direction: column; gap: var(--space-8); }
.tier-block { border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--color-divider); }
.tier-header { padding: var(--space-6) var(--space-8); }
.tier-1 .tier-header { background: rgba(34,197,94,0.06); border-bottom: 1px solid rgba(34,197,94,0.12); }
.tier-2 .tier-header { background: rgba(245,158,11,0.06); border-bottom: 1px solid rgba(245,158,11,0.12); }
.tier-3 .tier-header { background: rgba(139,92,246,0.06); border-bottom: 1px solid rgba(139,92,246,0.12); }
.tier-badge { display: inline-block; padding: var(--space-1) var(--space-3); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; border-radius: var(--radius-full); margin-bottom: var(--space-3); }
.tier-badge-1 { background: rgba(34,197,94,0.2); color: #22C55E; }
.tier-badge-2 { background: rgba(245,158,11,0.2); color: #F59E0B; }
.tier-badge-3 { background: rgba(139,92,246,0.2); color: #8B5CF6; }
.tier-title { font-size: var(--text-xl); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.tier-desc { font-size: var(--text-sm); color: var(--color-text-secondary); margin-bottom: 0; max-width: 600px; line-height: 1.5; }
.tier-items { padding: var(--space-5) var(--space-8); display: flex; flex-direction: column; gap: var(--space-5); }
.tier-item { padding-bottom: var(--space-5); border-bottom: 1px solid var(--color-divider); }
.tier-item:last-child { border-bottom: none; padding-bottom: 0; }
.tier-item h4 { font-size: var(--text-base); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.tier-item p { font-size: var(--text-sm); color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 0; }
@media (max-width: 768px) { .tier-header, .tier-items { padding-inline: var(--space-5); } }

/* ─── Downloads ─── */
.downloads-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr)); gap: var(--space-6); }
.download-card { background: var(--color-surface); border: 1px solid var(--color-divider); border-radius: var(--radius-lg); padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); transition: border-color var(--transition-interactive), transform var(--transition-interactive); }
.download-card:hover { border-color: rgba(59,130,246,0.3); transform: translateY(-2px); }
.download-card h3 { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); }
.download-card p { font-size: var(--text-sm); color: rgba(240,237,232,0.6); line-height: 1.6; flex: 1; }
.download-featured { grid-column: 1 / -1; background: linear-gradient(135deg, rgba(59,130,246,0.08), rgba(245,158,11,0.04)); border-color: rgba(59,130,246,0.25); }
@media (min-width: 768px) { .download-featured { grid-column: 1 / span 2; } }
.download-badge { display: inline-block; padding: var(--space-1) var(--space-3); background: var(--color-primary); color: #fff; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; border-radius: var(--radius-sm); margin-bottom: var(--space-2); width: fit-content; }
.download-meta { display: flex; gap: var(--space-4); font-size: var(--text-xs); color: rgba(240,237,232,0.35); }
.download-meta span { position: relative; }
.download-meta span + span::before { content: '\00B7'; position: absolute; left: calc(-1 * var(--space-2) - 2px); color: rgba(240,237,232,0.25); }

/* ─── Footer ─── */
.footer { background: var(--color-surface-offset); border-top: 1px solid var(--color-divider); padding-block: var(--space-16); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr)); gap: var(--space-8); }
.footer-heading { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(240,237,232,0.9); margin-bottom: var(--space-4); }
.footer-text { font-size: var(--text-sm); color: rgba(240,237,232,0.45); line-height: 1.6; max-width: 300px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: var(--space-2); }
.footer-links a { color: rgba(240,237,232,0.45); font-size: var(--text-sm); text-decoration: none; transition: color var(--transition-interactive); }
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom { margin-top: var(--space-12); padding-top: var(--space-6); border-top: 1px solid var(--color-divider); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-4); }
.footer-bottom p { font-size: var(--text-xs); color: var(--color-text-muted); margin-bottom: 0; }
.footer-attribution { font-size: var(--text-xs); color: rgba(240,237,232,0.3); text-decoration: none; transition: color var(--transition-interactive); }
.footer-attribution:hover { color: rgba(240,237,232,0.6); }

/* ─── Chatbot ─── */
.chatbot-container { position: fixed; bottom: var(--space-6); right: var(--space-6); z-index: 60; }
.chatbot-toggle { width: 56px; height: 56px; border-radius: var(--radius-full); background: var(--color-primary); color: #fff; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-lg), var(--shadow-glow); transition: all var(--transition-interactive); }
.chatbot-toggle:hover { background: var(--color-primary-hover); transform: scale(1.05); }
.chatbot-panel { position: absolute; bottom: calc(56px + var(--space-4)); right: 0; width: min(380px, calc(100vw - var(--space-8))); height: min(520px, calc(100dvh - 120px)); background: var(--color-surface-offset); border: 1px solid var(--color-card-border); border-radius: var(--radius-xl); overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--shadow-lg); transform: translateY(10px) scale(0.95); opacity: 0; pointer-events: none; transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out); }
.chatbot-panel.open { transform: translateY(0) scale(1); opacity: 1; pointer-events: all; }
.chatbot-header { display: flex; align-items: center; justify-content: space-between; padding: var(--space-4) var(--space-5); background: var(--color-surface); border-bottom: 1px solid var(--color-divider); }
.chatbot-title { font-family: var(--font-display); font-size: var(--text-sm); font-weight: 700; color: var(--color-text); }
.chatbot-subtitle { font-size: var(--text-xs); color: var(--color-text-muted); }
.chatbot-close { background: none; border: none; cursor: pointer; color: var(--color-text-muted); padding: var(--space-2); transition: color var(--transition-interactive); }
.chatbot-close:hover { color: var(--color-text); }
.chatbot-messages { flex: 1; overflow-y: auto; padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); }
.chatbot-message-assistant { align-self: flex-start; background: var(--color-surface); color: var(--color-text-secondary); border-bottom-left-radius: var(--radius-sm); max-width: 85%; padding: var(--space-3) var(--space-4); border-radius: var(--radius-lg); font-size: var(--text-sm); line-height: 1.5; }
.chatbot-message--user { align-self: flex-end; background: var(--color-primary); color: #fff; border-bottom-right-radius: var(--radius-sm); max-width: 85%; padding: var(--space-3) var(--space-4); border-radius: var(--radius-lg); font-size: var(--text-sm); line-height: 1.5; }
.chatbot-input-area { display: flex; gap: var(--space-2); padding: var(--space-3) var(--space-4); border-top: 1px solid var(--color-divider); background: var(--color-surface); }
.chatbot-input-area input { flex: 1; padding: var(--space-2) var(--space-3); background: var(--color-surface-offset); border: 1px solid var(--color-divider); border-radius: var(--radius-md); color: var(--color-text); font-size: var(--text-sm); min-height: 44px; }
.chatbot-input-area input::placeholder { color: var(--color-text-muted); }
.chatbot-input-area input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-glow); }
.chatbot-send { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: var(--color-primary); color: #fff; border: none; border-radius: var(--radius-md); cursor: pointer; transition: background var(--transition-interactive); }
.chatbot-send:hover { background: var(--color-primary-hover); }

/* ─── Scroll Animations ─── */
.fade-in { opacity: 1; }
@supports (animation-timeline: scroll()) {
  .fade-in { opacity: 0; animation: reveal-fade linear both; animation-timeline: view(); animation-range: entry 0% entry 100%; }
}
@keyframes reveal-fade { to { opacity: 1; } }
.fade-in:nth-child(2) { animation-delay: 60ms; }
.fade-in:nth-child(3) { animation-delay: 120ms; }
.fade-in:nth-child(4) { animation-delay: 180ms; }
.fade-in:nth-child(5) { animation-delay: 240ms; }
.fade-in:nth-child(6) { animation-delay: 300ms; }

/* ─── Skip Link ─── */
.skip-link { position: absolute; top: -100%; left: var(--space-4); background: var(--color-primary); color: #fff; padding: var(--space-2) var(--space-4); border-radius: var(--radius-md); font-weight: 600; font-size: var(--text-sm); z-index: 100; text-decoration: none; }
.skip-link:focus { top: var(--space-4); }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .container { padding-inline: var(--space-4); }
  .section { padding-block: clamp(var(--space-12), 6vw, var(--space-20)); }
  .hero { min-height: 80vh; min-height: 80dvh; }
  .hero-title { font-size: clamp(1.75rem, 1rem + 4vw, 3rem); }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 300px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .chatbot-container { bottom: var(--space-4); right: var(--space-4); }
  .chatbot-panel { width: calc(100vw - var(--space-8)); right: calc(-1 * var(--space-4)); height: min(450px, calc(100dvh - 120px)); }
}
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } .kpi-grid { grid-template-columns: 1fr; } }

/* ─── Print ─── */
@media print {
  .nav, .chatbot-container, .btn { display: none !important; }
  body { background: white; color: black; }
  .card, .kpi-card, .chart-container { background: white; border: 1px solid #ccc; backdrop-filter: none; }
  a { color: black; text-decoration: underline; }
}