/* ============================================================
   MATMON × AKIN — Demand Generation Partnership
   Brand: Dark Blue #0D5270 · Accent Cyan #2CA6DE · Gold #F6B819
          Grey #3B4951 · White #FFFFFF · Montserrat
   ============================================================ */

:root {
  /* 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, 4.5rem);

  /* 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;

  /* Brand colors */
  --blue: #0D5270;
  --blue-deep: #093d54;
  --cyan: #2CA6DE;
  --cyan-light: #57b3ca;
  --gold: #F6B819;
  --gold-deep: #d99e08;
  --grey: #3B4951;

  /* Light theme surfaces */
  --color-bg: #ffffff;
  --color-surface: #f6f9fb;
  --color-surface-2: #eef4f8;
  --color-text: #1f2c33;
  --color-text-muted: #5a6b74;
  --color-text-faint: #8fa0a8;
  --color-border: rgba(13,82,112,0.12);
  --color-divider: rgba(13,82,112,0.10);

  --radius-sm: 0.375rem; --radius-md: 0.625rem; --radius-lg: 1rem; --radius-xl: 1.5rem; --radius-full: 9999px;
  --transition-interactive: 200ms cubic-bezier(0.16,1,0.3,1);
  --shadow-sm: 0 1px 3px rgba(13,82,112,0.08);
  --shadow-md: 0 8px 24px rgba(13,82,112,0.10);
  --shadow-lg: 0 24px 60px rgba(9,61,84,0.18);

  --content: 1180px;
  --gradient: linear-gradient(135deg, #57b3ca 0%, #2ca6de 42%, #1f7bb5 78%, #0d5270 100%);

  --font-body: 'Montserrat', system-ui, sans-serif;
  --font-display: 'Montserrat', system-ui, sans-serif;
}

[data-theme="dark"] {
  --color-bg: #0b2230;
  --color-surface: #0f2d3d;
  --color-surface-2: #133546;
  --color-text: #e7eef2;
  --color-text-muted: #9fb4bf;
  --color-text-faint: #6a828f;
  --color-border: rgba(255,255,255,0.12);
  --color-divider: rgba(255,255,255,0.08);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 24px 60px rgba(0,0,0,0.5);
}

/* ---------- Base ---------- */
*,*::before,*::after { box-sizing: border-box; margin:0; padding:0; }
html {
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility; scroll-behavior: smooth; scroll-padding-top: 88px;
}
body {
  min-height:100dvh; line-height:1.65; font-family:var(--font-body);
  font-size:var(--text-base); color:var(--color-text); background:var(--color-bg);
  -webkit-text-size-adjust:none;
}
img,svg { display:block; max-width:100%; height:auto; }
h1,h2,h3,h4 { text-wrap:balance; line-height:1.12; font-weight:700; letter-spacing:-0.01em; }
p,li { text-wrap:pretty; max-width:68ch; }
a { color:inherit; }
ul[role=list],ol[role=list] { list-style:none; }
::selection { background:rgba(44,166,222,0.28); color:var(--color-text); }
:focus-visible { outline:2px solid var(--cyan); outline-offset:3px; border-radius:var(--radius-sm); }
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{ animation-duration:.01ms!important; animation-iteration-count:1!important; transition-duration:.01ms!important; scroll-behavior:auto!important; }
}

.container { width:100%; max-width:var(--content); margin-inline:auto; padding-inline:clamp(var(--space-5),5vw,var(--space-12)); }
.sr-only { position:absolute; width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0; }
.skip-link { position:absolute; left:-9999px; top:0; background:var(--blue); color:#fff; padding:var(--space-3) var(--space-5); z-index:200; border-radius:0 0 var(--radius-md) 0; }
.skip-link:focus { left:0; }

/* ---------- Buttons ---------- */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:var(--space-2);
  font-family:var(--font-body); font-weight:600; font-size:var(--text-sm);
  padding:var(--space-3) var(--space-6); border-radius:var(--radius-full);
  text-decoration:none; transition:transform var(--transition-interactive), background var(--transition-interactive), box-shadow var(--transition-interactive), color var(--transition-interactive);
  white-space:nowrap; line-height:1;
}
.btn-lg { padding:var(--space-4) var(--space-8); font-size:var(--text-base); }
.btn-gold { background:var(--gold); color:#1f2c33; box-shadow:0 6px 18px rgba(246,184,25,0.35); }
.btn-gold:hover { background:var(--gold-deep); transform:translateY(-2px); box-shadow:0 10px 26px rgba(246,184,25,0.45); }
.btn-ghost { background:transparent; color:#fff; border:1.5px solid rgba(255,255,255,0.55); }
.btn-ghost:hover { background:rgba(255,255,255,0.12); border-color:#fff; transform:translateY(-2px); }

/* ---------- Header ---------- */
.header {
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition:background var(--transition-interactive), box-shadow var(--transition-interactive), padding var(--transition-interactive);
  padding:var(--space-4) 0;
}
.header-inner { width:100%; max-width:var(--content); margin-inline:auto; padding-inline:clamp(var(--space-5),5vw,var(--space-12)); display:flex; align-items:center; gap:var(--space-6); }
.brand { display:flex; align-items:center; flex-shrink:0; }
.brand-logo { height:32px; width:auto; }
.nav { display:flex; gap:clamp(var(--space-4),2vw,var(--space-8)); margin-left:auto; }
.nav a { color:#fff; text-decoration:none; font-size:var(--text-sm); font-weight:500; opacity:0.9; transition:opacity var(--transition-interactive); }
.nav a:hover { opacity:1; }
.nav-cta { margin-left:var(--space-4); }
.header.scrolled {
  background:rgba(13,82,112,0.92); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-md); padding:var(--space-3) 0;
}
.header.scrolled .brand-logo { height:28px; }

/* ---------- Hero ---------- */
.hero { position:relative; min-height:92vh; display:flex; align-items:center; overflow:hidden; isolation:isolate; }
.hero-media { position:absolute; inset:0; z-index:-2; }
.hero-media img { width:100%; height:100%; object-fit:cover; }
.hero-scrim {
  position:absolute; inset:0;
  background:
    linear-gradient(105deg, rgba(9,61,84,0.94) 0%, rgba(13,82,112,0.86) 42%, rgba(31,123,181,0.62) 72%, rgba(44,166,222,0.30) 100%);
}
.hero-content { width:100%; max-width:var(--content); margin-inline:auto; padding:clamp(7rem,12vh,9rem) clamp(var(--space-5),5vw,var(--space-12)) var(--space-16); }
.kicker { color:var(--gold); font-weight:600; font-size:var(--text-sm); letter-spacing:0.04em; text-transform:uppercase; margin-bottom:var(--space-5); }
.hero-title { color:#fff; font-size:var(--text-3xl); font-weight:800; line-height:1.05; letter-spacing:-0.02em; max-width:16ch; }
.hero-tagline { color:var(--gold); font-size:var(--text-lg); font-weight:700; letter-spacing:0.005em; margin-top:var(--space-5); }
.hero-lede { color:rgba(255,255,255,0.92); font-size:var(--text-lg); font-weight:400; max-width:54ch; margin-top:var(--space-6); }
.hero-actions { display:flex; flex-wrap:wrap; gap:var(--space-4); margin-top:var(--space-8); }
.hero-stats { display:flex; flex-wrap:wrap; gap:clamp(var(--space-6),4vw,var(--space-12)); margin-top:var(--space-16); padding-top:var(--space-8); border-top:1px solid rgba(255,255,255,0.22); }
.hero-stats div { display:flex; flex-direction:column; }
.hero-stats dt { color:#fff; font-size:var(--text-xl); font-weight:800; line-height:1; }
.hero-stats dd { color:rgba(255,255,255,0.8); font-size:var(--text-xs); text-transform:uppercase; letter-spacing:0.06em; margin-top:var(--space-2); }

/* ---------- Section shells ---------- */
.section { padding-block:clamp(var(--space-16),9vw,var(--space-32)); }
.eyebrow { color:var(--cyan); font-weight:700; font-size:var(--text-sm); letter-spacing:0.08em; text-transform:uppercase; margin-bottom:var(--space-4); }
.eyebrow-light { color:var(--gold); }
.section-head { font-size:var(--text-2xl); max-width:18ch; }
.section-head.small { font-size:var(--text-xl); }
.section-head.light { color:#fff; }
.section-sub { color:var(--color-text-muted); font-size:var(--text-lg); font-weight:400; max-width:58ch; margin-top:var(--space-5); }
.section-sub.light { color:rgba(255,255,255,0.85); }

/* ---------- Summary ---------- */
.section-summary { background:var(--color-bg); }
.summary-grid { display:grid; grid-template-columns:1.5fr 1fr; gap:clamp(var(--space-8),5vw,var(--space-16)); align-items:start; }
.summary-lead h2 { font-size:var(--text-2xl); margin-bottom:var(--space-6); }
.lead-text { color:var(--color-text-muted); margin-bottom:var(--space-5); font-size:var(--text-base); }
.summary-card { background:var(--gradient); color:#fff; border-radius:var(--radius-xl); padding:clamp(var(--space-6),3vw,var(--space-10)); box-shadow:var(--shadow-lg); position:relative; overflow:hidden; }
.summary-card::after { content:""; position:absolute; inset:0; background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E"); opacity:0.06; mix-blend-mode:overlay; pointer-events:none; }
.summary-card h3 { font-size:var(--text-lg); margin-bottom:var(--space-5); position:relative; }
.check-list { display:flex; flex-direction:column; gap:var(--space-4); position:relative; }
.check-list li { position:relative; padding-left:var(--space-8); font-size:var(--text-sm); line-height:1.55; color:rgba(255,255,255,0.95); max-width:none; }
.check-list li::before {
  content:""; position:absolute; left:0; top:2px; width:20px; height:20px; border-radius:var(--radius-full);
  background:var(--gold); background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%231f2c33' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:center;
}

/* ---------- Targets ---------- */
.section-targets { background:var(--color-surface); }
.layers { display:flex; flex-direction:column; gap:clamp(var(--space-10),5vw,var(--space-20)); margin-top:var(--space-16); }
.layer-row { display:grid; grid-template-columns:1fr 1fr; gap:clamp(var(--space-6),4vw,var(--space-12)); align-items:center; }
.layer-row.reverse .layer-img { order:2; }
.layer-img { border-radius:var(--radius-xl); overflow:hidden; box-shadow:var(--shadow-md); aspect-ratio:16/11; }
.layer-img img { width:100%; height:100%; object-fit:cover; transition:transform 600ms cubic-bezier(0.16,1,0.3,1); }
.layer-row:hover .layer-img img { transform:scale(1.04); }
.layer-tag { display:inline-block; color:var(--cyan); font-weight:700; font-size:var(--text-xs); letter-spacing:0.06em; text-transform:uppercase; margin-bottom:var(--space-3); }
.layer-body h3 { font-size:var(--text-xl); margin-bottom:var(--space-4); }
.layer-body p { color:var(--color-text-muted); margin-bottom:var(--space-4); }
.layer-stat { color:var(--blue); font-size:var(--text-base); }
[data-theme="dark"] .layer-stat { color:var(--cyan); }
.layer-stat strong { color:var(--color-text); font-weight:700; }
.targets-total { display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:clamp(var(--space-6),4vw,var(--space-12)); margin-top:clamp(var(--space-12),6vw,var(--space-20)); padding:clamp(var(--space-8),4vw,var(--space-12)); background:var(--gradient); border-radius:var(--radius-xl); box-shadow:var(--shadow-lg); }
.total-stat { display:flex; flex-direction:column; align-items:center; text-align:center; }
.total-num { color:#fff; font-size:var(--text-2xl); font-weight:800; line-height:1; }
.total-label { color:rgba(255,255,255,0.85); font-size:var(--text-sm); margin-top:var(--space-2); }
.total-divider { width:1px; height:48px; background:rgba(255,255,255,0.3); }

/* ---------- Method (dark blue) ---------- */
.section-method { background:var(--blue-deep); position:relative; overflow:hidden; }
.section-method::before { content:""; position:absolute; inset:0; background:var(--gradient); opacity:0.35; pointer-events:none; }
.section-method .container { position:relative; }
.steps { display:grid; grid-template-columns:repeat(2,1fr); gap:clamp(var(--space-6),3vw,var(--space-10)); margin-top:var(--space-16); }
.step { display:flex; gap:var(--space-5); align-items:flex-start; }
.step-num { font-size:var(--text-xl); font-weight:800; color:var(--gold); line-height:1; flex-shrink:0; min-width:2.2ch; }
.step h3 { color:#fff; font-size:var(--text-lg); margin-bottom:var(--space-3); }
.step p { color:rgba(255,255,255,0.82); font-size:var(--text-base); }
.step em { color:var(--gold); font-style:italic; }

/* ---------- Roadmap ---------- */
.section-roadmap { background:var(--color-bg); }
.timeline { display:grid; grid-template-columns:repeat(5,1fr); gap:var(--space-5); margin-top:var(--space-16); position:relative; }
.timeline::before { content:""; position:absolute; top:36px; left:0; right:0; height:2px; background:var(--color-divider); z-index:0; }
.phase { position:relative; padding-top:var(--space-16); }
.phase::before { content:""; position:absolute; top:28px; left:0; width:18px; height:18px; border-radius:var(--radius-full); background:var(--cyan); border:3px solid var(--color-bg); z-index:1; }
.phase-flag::before { background:var(--gold); width:24px; height:24px; top:25px; }
.phase-months { display:block; color:var(--cyan); font-weight:700; font-size:var(--text-xs); text-transform:uppercase; letter-spacing:0.05em; margin-bottom:var(--space-2); }
.phase-flag .phase-months { color:var(--gold-deep); }
.phase h3 { font-size:var(--text-base); margin-bottom:var(--space-2); }
.phase p { color:var(--color-text-muted); font-size:var(--text-sm); max-width:none; }

/* ---------- Investment ---------- */
.section-investment { background:var(--color-surface); }
.invest-grid { display:grid; grid-template-columns:1.4fr 1fr; gap:clamp(var(--space-6),4vw,var(--space-12)); margin-top:var(--space-12); align-items:start; }
.invest-table { width:100%; background:var(--color-bg); border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow-sm); border:1px solid var(--color-border); }
.invest-table thead th { background:var(--blue); color:#fff; text-align:left; padding:var(--space-4) var(--space-5); font-size:var(--text-sm); font-weight:600; }
.invest-table th.num,.invest-table td.num { text-align:right; }
.invest-table tbody td { padding:var(--space-4) var(--space-5); font-size:var(--text-sm); border-top:1px solid var(--color-divider); color:var(--color-text); }
.invest-table tbody tr:nth-child(even) { background:var(--color-surface); }
.invest-table td.num { font-weight:700; color:var(--blue); white-space:nowrap; }
[data-theme="dark"] .invest-table td.num { color:var(--cyan); }
.invest-cards { display:grid; gap:var(--space-4); }
.invest-card { background:var(--color-bg); border:1px solid var(--color-border); border-radius:var(--radius-lg); padding:var(--space-5) var(--space-6); display:flex; flex-direction:column; gap:var(--space-1); box-shadow:var(--shadow-sm); }
.invest-card.highlight { background:var(--gradient); border:none; box-shadow:var(--shadow-md); }
.ic-label { font-size:var(--text-xs); text-transform:uppercase; letter-spacing:0.05em; color:var(--color-text-muted); }
.invest-card.highlight .ic-label { color:rgba(255,255,255,0.85); }
.ic-amount { font-size:var(--text-xl); font-weight:800; color:var(--blue); }
.invest-card.highlight .ic-amount { color:#fff; }
[data-theme="dark"] .ic-amount { color:var(--cyan); }
.ic-foot { font-size:var(--text-xs); color:var(--color-text-faint); margin-top:var(--space-1); }
.invest-note { color:var(--color-text-faint); font-size:var(--text-sm); margin-top:var(--space-6); font-style:italic; }
.retainer-note { margin-top:var(--space-8); padding:var(--space-7) var(--space-8); background:linear-gradient(135deg, rgba(44,166,222,0.10), rgba(13,82,112,0.08)); border:1px solid rgba(44,166,222,0.30); border-left:4px solid var(--cyan); border-radius:var(--radius-lg); }
.retainer-tag { display:inline-block; font-size:var(--text-xs); font-weight:700; letter-spacing:0.06em; text-transform:uppercase; color:var(--blue); background:rgba(246,184,25,0.18); padding:0.32em 0.8em; border-radius:999px; margin-bottom:var(--space-3); }
.retainer-note p { margin:0; color:var(--color-text); font-size:var(--text-base); line-height:1.65; }
.retainer-note strong { color:var(--blue); font-weight:700; }
[data-theme="dark"] .retainer-note { background:linear-gradient(135deg, rgba(44,166,222,0.14), rgba(13,82,112,0.18)); border-color:rgba(44,166,222,0.45); }
[data-theme="dark"] .retainer-tag { color:var(--gold); background:rgba(246,184,25,0.16); }
[data-theme="dark"] .retainer-note strong { color:var(--cyan); }

/* Skip rendering work for heavy sections until they're near the viewport (smoother scroll) */
.section-return, .section-portfolio { content-visibility:auto; contain-intrinsic-size:1px 900px; }

/* ---------- Return (image bg) ---------- */
.section-return { position:relative; overflow:hidden; isolation:isolate; }
.return-media { position:absolute; inset:0; z-index:-2; }
.return-media img { width:100%; height:100%; object-fit:cover; }
.return-scrim { position:absolute; inset:0; background:linear-gradient(115deg, rgba(9,61,84,0.95) 0%, rgba(13,82,112,0.9) 55%, rgba(31,123,181,0.78) 100%); }
.roi-cards { display:grid; grid-template-columns:repeat(3,1fr); gap:var(--space-6); margin-top:var(--space-12); }
.roi-card { background:rgba(255,255,255,0.08); border:1px solid rgba(255,255,255,0.18); backdrop-filter:blur(6px); border-radius:var(--radius-lg); padding:clamp(var(--space-6),3vw,var(--space-8)); }
.roi-card.featured { background:var(--gold); border-color:var(--gold); }
.roi-tier { display:block; color:rgba(255,255,255,0.85); font-size:var(--text-xs); text-transform:uppercase; letter-spacing:0.06em; font-weight:700; }
.roi-card.featured .roi-tier { color:rgba(31,44,51,0.7); }
.roi-figure { display:block; color:#fff; font-size:var(--text-2xl); font-weight:800; line-height:1; margin:var(--space-3) 0 var(--space-4); }
.roi-card.featured .roi-figure { color:#1f2c33; }
.roi-card p { color:rgba(255,255,255,0.85); font-size:var(--text-sm); max-width:none; }
.roi-card.featured p { color:rgba(31,44,51,0.85); }

/* ---------- Start ---------- */
.section-start { background:var(--color-bg); }
.start-steps { display:grid; grid-template-columns:repeat(4,1fr); gap:var(--space-6); margin-top:var(--space-12); }
.start-steps li { display:flex; flex-direction:column; gap:var(--space-3); }
.ss-num { width:44px; height:44px; border-radius:var(--radius-full); background:var(--gradient); color:#fff; font-weight:800; font-size:var(--text-lg); display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-sm); }
.start-steps h3 { font-size:var(--text-base); }
.start-steps p { color:var(--color-text-muted); font-size:var(--text-sm); max-width:none; }
.start-cta { margin-top:clamp(var(--space-12),6vw,var(--space-20)); background:var(--gradient); border-radius:var(--radius-xl); padding:clamp(var(--space-10),5vw,var(--space-16)); text-align:center; box-shadow:var(--shadow-lg); position:relative; overflow:hidden; }
.start-cta h3 { color:#fff; font-size:var(--text-xl); }
.start-cta p { color:rgba(255,255,255,0.9); margin:var(--space-4) auto var(--space-8); max-width:48ch; }
.start-cta .start-signature { color:var(--gold); font-weight:800; font-size:var(--text-2xl); line-height:1.15; letter-spacing:-0.01em; max-width:24ch; margin:0 auto var(--space-6); }

/* ---------- Portfolio video ---------- */
.section-portfolio { background:linear-gradient(135deg,#0d5270 0%,#0b455f 55%,#093d54 100%); color:#fff; }
.section-portfolio .section-head.light { color:#fff; }
.section-portfolio .eyebrow-light { color:var(--gold); }
.portfolio-lede { color:rgba(228,240,247,0.85); font-size:var(--text-base); max-width:62ch; margin-top:var(--space-4); }
.portfolio-video { margin:var(--space-10) 0 0; border-radius:var(--radius-xl); overflow:hidden; box-shadow:0 30px 70px -25px rgba(0,0,0,0.55); border:1px solid rgba(255,255,255,0.12); line-height:0; }
.portfolio-video video { width:100%; height:auto; display:block; }

/* ---------- Designer quotes below video ---------- */
.quotes-intro { color:#fff; font-weight:700; font-size:var(--text-lg); max-width:54ch; margin:var(--space-12) auto var(--space-8); text-align:center; line-height:1.4; }
.quote-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:var(--space-6); }
.quote-card { position:relative; background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.12); border-left:3px solid var(--gold); border-radius:var(--radius-lg); padding:var(--space-8) var(--space-8) var(--space-6); margin:0; }
.quote-card::before { content:"\201C"; position:absolute; top:0.1em; left:0.28em; font-size:3.4rem; line-height:1; color:var(--gold); opacity:0.45; font-family:Georgia,serif; }
.quote-card blockquote { margin:0; color:rgba(238,246,251,0.94); font-size:var(--text-base); line-height:1.6; }
.quote-card figcaption { margin-top:var(--space-5); font-size:var(--text-sm); color:rgba(228,240,247,0.7); font-weight:600; }
.quote-card figcaption a { color:var(--gold); text-decoration:none; font-weight:700; }
.quote-card figcaption a:hover { text-decoration:underline; }
@media (max-width:760px){ .quote-grid { grid-template-columns:1fr; } }
.sources-fold { margin-top:var(--space-10); border-top:1px solid rgba(255,255,255,0.14); padding-top:var(--space-6); }
.sources-fold > summary { cursor:pointer; color:var(--gold); font-weight:600; font-size:var(--text-sm); letter-spacing:0.02em; list-style:none; }
.sources-fold > summary::-webkit-details-marker { display:none; }
.sources-fold > summary::before { content:"+ "; font-weight:700; }
.sources-fold[open] > summary::before { content:"\2212 "; }
.source-list { display:grid; grid-template-columns:repeat(2,1fr); gap:var(--space-3) var(--space-8); margin-top:var(--space-6); }
.source-list a { color:rgba(255,255,255,0.9); text-decoration:none; font-size:var(--text-sm); border-bottom:1px solid transparent; transition:border-color var(--transition-interactive); }
.source-list a:hover { border-bottom-color:var(--gold); color:#fff; }
.image-credit { color:rgba(228,240,247,0.6); font-size:var(--text-xs); margin-top:var(--space-6); max-width:none; }
.image-credit a { color:rgba(255,255,255,0.85); }

/* ---------- Footer ---------- */
.footer { background:var(--blue-deep); color:#fff; padding-block:clamp(var(--space-12),6vw,var(--space-16)); }
.footer-inner { display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:var(--space-8); }
.footer-logo { height:34px; width:auto; }
.footer-meta { text-align:right; }
.footer-meta p { color:rgba(255,255,255,0.8); font-size:var(--text-sm); max-width:none; }
.footer-meta a { color:var(--gold); text-decoration:none; font-size:var(--text-sm); font-weight:600; }
.footer-meta a:hover { text-decoration:underline; }

/* ---------- Theme toggle ---------- */
.theme-toggle { position:fixed; bottom:var(--space-6); right:var(--space-6); z-index:100; width:48px; height:48px; border-radius:var(--radius-full); background:var(--blue); color:#fff; display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-md); border:none; cursor:pointer; transition:transform var(--transition-interactive), background var(--transition-interactive); }
.theme-toggle:hover { transform:scale(1.08); background:var(--cyan); }

/* ---------- Reveal animation ---------- */
.reveal { opacity:0; transform:translateY(28px); transition:opacity 700ms cubic-bezier(0.16,1,0.3,1), transform 700ms cubic-bezier(0.16,1,0.3,1); }
.reveal.in { opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){ .reveal{ opacity:1; transform:none; } }

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .nav { display:none; }
  .nav-cta { margin-left:auto; }
  .summary-grid,.invest-grid { grid-template-columns:1fr; }
  .steps { grid-template-columns:1fr; }
  .timeline { grid-template-columns:1fr; gap:var(--space-8); }
  .timeline::before { display:none; }
  .phase { padding-top:0; padding-left:var(--space-8); }
  .phase::before { top:6px; }
  .phase-flag::before { top:3px; }
  .roi-cards { grid-template-columns:1fr; }
  .start-steps { grid-template-columns:1fr 1fr; }
  .source-list { grid-template-columns:1fr; }
}
@media (max-width:680px){
  .layer-row,.layer-row.reverse { grid-template-columns:1fr; }
  .layer-row.reverse .layer-img { order:0; }
  .targets-total { flex-direction:column; }
  .total-divider { width:60px; height:1px; }
  .start-steps { grid-template-columns:1fr; }
  .footer-inner { flex-direction:column; align-items:flex-start; }
  .footer-meta { text-align:left; }
  .hero { min-height:auto; padding-block:var(--space-12); }
}