:root{
  --color-primary:#1B3A6B;
  --color-primary-dark:#122847;
  --color-primary-light:#2C5494;
  --color-accent:#F5B400;
  --color-accent-dark:#C99300;
  --color-bg:#F7F9FC;
  --color-surface:#FFFFFF;
  --color-surface-2:#EEF2F8;
  --color-text:#0F1B2D;
  --color-text-muted:#5A6679;
  --color-border:#E1E7EF;
  --color-success:#10B981;
  --color-danger:#EF4444;
  --color-warning:#F59E0B;
  --shadow-sm:0 1px 2px rgba(15,27,45,.06);
  --shadow-md:0 4px 16px rgba(15,27,45,.08);
  --shadow-lg:0 12px 32px rgba(15,27,45,.12);
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:24px;
  --container:1200px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;
  --transition:200ms cubic-bezier(.4,0,.2,1);
}
[data-theme="dark"]{
  --color-bg:#0B1426;
  --color-surface:#152238;
  --color-surface-2:#1E2D47;
  --color-text:#E6ECF5;
  --color-text-muted:#9AA8BD;
  --color-border:#243352;
  --color-primary:#3D6FB5;
  --color-primary-dark:#2C5494;
  --color-primary-light:#5A8DD5;
  --shadow-sm:0 1px 2px rgba(0,0,0,.3);
  --shadow-md:0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:0 12px 32px rgba(0,0,0,.5);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --color-bg:#0B1426;--color-surface:#152238;--color-surface-2:#1E2D47;
    --color-text:#E6ECF5;--color-text-muted:#9AA8BD;--color-border:#243352;
    --color-primary:#3D6FB5;--color-primary-dark:#2C5494;--color-primary-light:#5A8DD5;
    --shadow-sm:0 1px 2px rgba(0,0,0,.3);--shadow-md:0 4px 16px rgba(0,0,0,.4);--shadow-lg:0 12px 32px rgba(0,0,0,.5);
  }
}

body{font-family:var(--font);background:var(--color-bg);color:var(--color-text);transition:background var(--transition),color var(--transition)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 1.25rem}

/* Typography */
h1{font-size:clamp(1.875rem,4vw,3rem);letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2.25rem);letter-spacing:-.015em;margin-bottom:1rem}
h3{font-size:clamp(1.25rem,2.2vw,1.625rem);margin-bottom:.75rem}
h4{font-size:1.125rem;margin-bottom:.5rem}
p{color:var(--color-text);margin-bottom:1rem}
.lead{font-size:1.125rem;color:var(--color-text-muted)}
.muted{color:var(--color-text-muted)}
.text-center{text-align:center}
section{padding:3.5rem 0}

/* Skip link */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-primary);color:#fff;padding:.75rem 1rem;z-index:1000}
.skip-link:focus{left:1rem;top:1rem}

/* Header & Nav */
.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--color-surface) 92%,transparent);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--color-border);padding-top:env(safe-area-inset-top,0)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.875rem 0}
.brand{display:flex;align-items:center;gap:.75rem;color:var(--color-text)}
.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;font-weight:800;letter-spacing:-.04em;box-shadow:var(--shadow-sm)}
.brand-mark::after{content:"";position:absolute;width:14px;height:14px;border-radius:50%;background:var(--color-accent);transform:translate(14px,-14px);box-shadow:0 0 0 3px var(--color-surface)}
.brand-mark{position:relative}
.brand-name{font-weight:800;font-size:.95rem;line-height:1.1}
.brand-sub{font-size:.72rem;color:var(--color-text-muted);font-weight:500;letter-spacing:.02em}

.nav-list{display:flex;align-items:center;gap:.25rem}
.nav-list a{padding:.5rem .85rem;border-radius:8px;color:var(--color-text-muted);font-weight:500;font-size:.95rem;transition:all var(--transition)}
.nav-list a:hover,.nav-list a[aria-current="page"]{background:var(--color-surface-2);color:var(--color-text)}

.nav-actions{display:flex;align-items:center;gap:.5rem}
.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--color-surface-2);color:var(--color-text);transition:all var(--transition)}
.icon-btn:hover{background:var(--color-border)}
.icon-btn svg{width:20px;height:20px}

.lang-switch{display:inline-flex;background:var(--color-surface-2);border-radius:10px;padding:3px;gap:2px}
.lang-switch button{padding:.4rem .65rem;border-radius:7px;font-size:.8rem;font-weight:700;color:var(--color-text-muted)}
.lang-switch button.active{background:var(--color-surface);color:var(--color-text);box-shadow:var(--shadow-sm)}

.menu-toggle{display:none}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.25rem;border-radius:10px;font-weight:600;font-size:.95rem;transition:all var(--transition);min-height:44px}
.btn-primary{background:var(--color-primary);color:#fff}
.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-accent{background:var(--color-accent);color:var(--color-primary-dark)}
.btn-accent:hover{background:var(--color-accent-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}
.btn-ghost:hover{background:var(--color-surface-2)}
.btn-sm{padding:.5rem .9rem;font-size:.85rem;min-height:36px}
.btn-lg{padding:1rem 1.75rem;font-size:1.05rem;min-height:52px}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--color-primary-dark) 0%,var(--color-primary) 60%,var(--color-primary-light) 100%);color:#fff;padding:5rem 0 6rem}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 30%,rgba(245,180,0,.18),transparent 40%),radial-gradient(circle at 85% 70%,rgba(245,180,0,.12),transparent 50%);pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 70%);-webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 70%);pointer-events:none}
.hero .container{position:relative;z-index:1}
.hero h1{color:#fff;margin-bottom:1.25rem}
.hero h1 span{color:var(--color-accent)}
.hero .lead{color:rgba(255,255,255,.85);max-width:620px;font-size:1.2rem;margin-bottom:2rem}
.hero-actions{display:flex;gap:.75rem;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-top:3rem;max-width:760px}
.hero-stat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);backdrop-filter:blur(10px);border-radius:var(--radius-md);padding:1rem 1.25rem}
.hero-stat-num{font-size:1.875rem;font-weight:800;color:var(--color-accent);letter-spacing:-.02em}
.hero-stat-lbl{font-size:.85rem;color:rgba(255,255,255,.8)}

/* Tip of the day banner */
.tip-banner{background:linear-gradient(90deg,rgba(245,180,0,.18),rgba(245,180,0,.08));border:1px solid rgba(245,180,0,.4);border-radius:var(--radius-lg);padding:1.75rem 2rem;display:flex;gap:1.25rem;align-items:flex-start;margin:-3.5rem auto 0;position:relative;z-index:2;max-width:calc(var(--container) - 2.5rem);box-shadow:var(--shadow-sm)}
.tip-banner-icon{flex-shrink:0;width:52px;height:52px;border-radius:50%;background:var(--color-accent);color:var(--color-primary-dark);display:grid;place-items:center}
.tip-banner-body{flex:1;min-width:0}
.tip-banner h4{margin-bottom:.5rem;color:var(--color-text);font-size:1.05rem;letter-spacing:-.005em}
.tip-banner p{margin:0;color:var(--color-text-muted);font-size:1rem;line-height:1.65}

/* Footer */
.site-footer{background:var(--color-primary-dark);color:rgba(255,255,255,.85);padding:3rem 0 1.5rem;margin-top:4rem}
.site-footer h4{color:#fff;margin-bottom:1rem;font-size:1rem}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;margin-bottom:2rem}
.site-footer a{color:rgba(255,255,255,.7);transition:color var(--transition);font-size:.9rem;display:inline-block;padding:.2rem 0}
.site-footer a:hover{color:var(--color-accent)}
.site-footer ul li{margin-bottom:.35rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:1.5rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.85rem;color:rgba(255,255,255,.6)}