/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html:focus-within{scroll-behavior:smooth}
body{min-height:100vh;text-rendering:optimizeSpeed;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img,picture,svg{display:block;max-width:100%}
input,button,select,textarea{font:inherit}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:900;line-height:1.2}
/* ===== VARIABLES ===== */
:root{
  --color-primary:#2E7D32;
  --color-primary-dark:#1B5E20;
  --color-secondary:#FFC107;
  --color-secondary-dark:#FF8F00;
  --color-accent:#1A237E;
  --color-accent-dark:#0D1B2A;
  --color-bg-light:#F5F5F5;
  --color-bg-dark:#0D1B2A;
  --color-text:#212121;
  --color-text-secondary:#616161;
  --color-border:#BDBDBD;
  --color-white:#FFFFFF;
  --color-white-soft:rgba(255,255,255,0.85);
  --font-heading:'Archivo Black','Arial Black',system-ui,-apple-system,sans-serif;
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --scale-ratio:1.25;
  --size-xs:calc(0.75rem * var(--scale-ratio));
  --size-sm:calc(0.875rem * var(--scale-ratio));
  --size-base:1rem;
  --size-md:calc(1rem * var(--scale-ratio));
  --size-lg:calc(1.25rem * var(--scale-ratio));
  --size-xl:calc(1.5rem * var(--scale-ratio));
  --size-2xl:calc(2rem * var(--scale-ratio));
  --size-3xl:calc(2.5rem * var(--scale-ratio));
  --size-4xl:calc(3.25rem * var(--scale-ratio));
  --space-unit:1rem;
  --space-xs:calc(0.25 * var(--space-unit));
  --space-sm:calc(0.5 * var(--space-unit));
  --space-md:calc(1 * var(--space-unit));
  --space-lg:calc(2 * var(--space-unit));
  --space-xl:calc(3 * var(--space-unit));
  --space-2xl:calc(4 * var(--space-unit));
  --max-width:1200px;
  --header-height:72px;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-lg:16px;
  --shadow-sm:0 1px 3px rgba(0,0,0,0.12);
  --shadow-md:0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg:0 8px 24px rgba(0,0,0,0.2);
  --transition-fast:150ms ease;
  --transition-base:300ms ease;
  --transition-slow:500ms ease;
}
/* ===== BASE TYPOGRAPHY ===== */
html{font-size:16px}
body{font-family:var(--font-body);color:var(--color-text);background:var(--color-bg-light);line-height:1.6}
h1{font-family:var(--font-heading);font-size:var(--size-3xl);letter-spacing:-0.02em}
h2{font-family:var(--font-heading);font-size:var(--size-2xl);letter-spacing:-0.01em}
h3{font-family:var(--font-heading);font-size:var(--size-xl)}
h4{font-family:var(--font-heading);font-size:var(--size-lg)}
p{max-width:72ch;color:var(--color-text-secondary);margin-bottom:var(--space-md)}
a{color:var(--color-primary);transition:color var(--transition-fast)}
a:hover{color:var(--color-secondary-dark)}
a:focus-visible{outline:3px solid var(--color-secondary);outline-offset:2px;border-radius:var(--radius-sm)}
/* ===== SKIP LINK ===== */
.skip-link{position:absolute;top:-100%;left:var(--space-md);padding:var(--space-sm) var(--space-md);background:var(--color-accent);color:var(--color-white);font-weight:700;z-index:10000;border-radius:0 0 var(--radius-sm) var(--radius-sm);transition:top var(--transition-fast)}
.skip-link:focus{top:0}
/* ===== CONTAINER ===== */
.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-md)}
/* ===== HEADER ===== */
.site-header{position:relative;background:var(--color-primary);width:100%;z-index:1000;box-shadow:var(--shadow-md);overflow:hidden}
.site-header::after{content:'';position:absolute;bottom:-6px;left:0;right:0;height:16px;background:linear-gradient(135deg,var(--color-secondary) 33%,transparent 33%,transparent 66%,var(--color-secondary) 66%);background-size:24px 24px;opacity:0.6;z-index:1}
.header-inner{display:flex;align-items:center;justify-content:space-between;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-md);height:var(--header-height);position:relative;z-index:2}
/* ===== LOGO ===== */
.site-logo{font-family:var(--font-heading);font-size:var(--size-xl);font-weight:900;color:var(--color-white);letter-spacing:0.04em;display:flex;align-items:center;gap:2px;flex-shrink:0;padding:var(--space-xs) 0;position:relative}
.site-logo:hover{color:var(--color-white)}
.logo-brand{color:var(--color-secondary);text-shadow:0 0 12px rgba(255,193,7,0.3)}
.logo-suffix{color:var(--color-white)}
/* ===== NAV TOGGLE ===== */
.nav-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;background:transparent;border:2px solid var(--color-white-soft);border-radius:var(--radius-sm);cursor:pointer;padding:8px;transition:background var(--transition-fast),border-color var(--transition-fast);flex-shrink:0}
.nav-toggle:hover{background:rgba(255,255,255,0.15);border-color:var(--color-white)}
.nav-toggle:focus-visible{outline:3px solid var(--color-secondary);outline-offset:2px;border-color:transparent}
.nav-toggle-bar{display:block;width:100%;height:3px;background:var(--color-white);border-radius:2px;transition:transform var(--transition-base),opacity var(--transition-base)}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(8px) rotate(45deg)}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
/* ===== NAVIGATION ===== */
.site-nav{display:flex;align-items:center;gap:var(--space-xs)}
.nav-link{font-family:var(--font-heading);font-size:var(--size-sm);font-weight:700;color:var(--color-white-soft);padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);transition:color var(--transition-fast),background var(--transition-fast),transform var(--transition-fast);position:relative;letter-spacing:0.03em;text-transform:uppercase}
.nav-link:hover{color:var(--color-secondary);background:rgba(255,255,255,0.1);transform:translateY(-1px)}
.nav-link[aria-current="page"]{color:var(--color-secondary);background:rgba(255,255,255,0.12);box-shadow:inset 0 -3px 0 var(--color-secondary)}
.nav-link:focus-visible{outline:3px solid var(--color-secondary);outline-offset:2px;background:rgba(0,0,0,0.2)}
/* ===== FOOTER ===== */
.site-footer{background:var(--color-accent-dark);color:var(--color-white-soft);padding:var(--space-xl) 0 0;position:relative;overflow:hidden}
.site-footer::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary),var(--color-primary));opacity:0.8}
.footer-inner{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-md);display:grid;grid-template-columns:1fr 1fr 1.5fr;gap:var(--space-lg);align-items:start}
.footer-brand{display:flex;flex-direction:column;gap:var(--space-sm)}
.footer-logo{font-family:var(--font-heading);font-size:var(--size-lg);font-weight:900;color:var(--color-white);letter-spacing:0.04em}
.footer-logo::first-letter{color:var(--color-secondary)}
.footer-tagline{font-size:var(--size-sm);color:var(--color-white-soft);line-height:1.7;max-width:36ch;opacity:0.8}
.footer-links,.footer-contact{display:flex;flex-direction:column;gap:var(--space-xs)}
.footer-links-title,.footer-contact-title{font-family:var(--font-heading);font-size:var(--size-sm);font-weight:700;color:var(--color-secondary);text-transform:uppercase;letter-spacing:0.06em;margin-bottom:var(--space-xs)}
.footer-link{font-size:var(--size-sm);color:var(--color-white-soft);padding:var(--space-xs) 0;transition:color var(--transition-fast),padding-left var(--transition-fast);border-bottom:1px solid rgba(255,255,255,0.08)}
.footer-link:hover{color:var(--color-secondary);padding-left:var(--space-xs)}
.footer-contact-item{font-size:var(--size-sm);color:var(--color-white-soft);opacity:0.85;line-height:1.6}
.footer-contact-item a{color:var(--color-secondary);border-bottom:1px solid transparent;transition:border-color var(--transition-fast)}
.footer-contact-item a:hover{border-color:var(--color-secondary)}
.footer-bottom{grid-column:1 / -1;display:flex;justify-content:space-between;align-items:center;padding:var(--space-md) 0;margin-top:var(--space-lg);border-top:1px solid rgba(255,255,255,0.1);font-size:var(--size-sm);color:var(--color-white-soft);opacity:0.7;flex-wrap:wrap;gap:var(--space-sm)}
.footer-icp{font-size:var(--size-xs);letter-spacing:0.05em}
/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);font-family:var(--font-heading);font-size:var(--size-sm);font-weight:700;padding:var(--space-sm) var(--space-md);border:none;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast);text-transform:uppercase;letter-spacing:0.04em;line-height:1.2}
.btn-primary{background:var(--color-primary);color:var(--color-white);box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-secondary{background:var(--color-secondary);color:var(--color-accent-dark);box-shadow:var(--shadow-sm)}
.btn-secondary:hover{background:var(--color-secondary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;color:var(--color-white);border:2px solid var(--color-white-soft)}
.btn-outline:hover{background:var(--color-white);color:var(--color-primary);transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid var(--color-secondary);outline-offset:2px}
.btn:active{transform:translateY(0)}
/* ===== BREADCRUMB ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-xs);font-size:var(--size-sm);color:var(--color-text-secondary);padding:var(--space-sm) 0;margin-bottom:var(--space-md)}
.breadcrumb a{color:var(--color-primary);transition:color var(--transition-fast)}
.breadcrumb a:hover{color:var(--color-secondary-dark)}
.breadcrumb-sep{margin:0 var(--space-xs);color:var(--color-border);user-select:none}
.breadcrumb-current{color:var(--color-text-secondary);font-weight:600}
/* ===== SECTION NUMBER & TITLE ===== */
.section-number{font-family:var(--font-heading);font-size:var(--size-4xl);font-weight:900;color:var(--color-primary);opacity:0.25;line-height:1;margin-bottom:calc(-1 * var(--space-sm));user-select:none;display:block}
.section-number + .section-title{margin-top:0}
.section-title{font-family:var(--font-heading);font-size:var(--size-2xl);font-weight:900;color:var(--color-text);margin-bottom:var(--space-sm);letter-spacing:-0.02em;position:relative}
.section-title::after{content:'';display:block;width:48px;height:4px;background:var(--color-secondary);margin-top:var(--space-sm);border-radius:2px}
.rotated-note{display:inline-block;font-family:var(--font-body);font-size:var(--size-xs);color:var(--color-text-secondary);writing-mode:vertical-rl;transform:rotate(180deg);letter-spacing:0.06em;opacity:0.7;margin-left:var(--space-xs);vertical-align:super;line-height:1.4}
/* ===== BACK TO TOP ===== */
.back-to-top{position:fixed;bottom:var(--space-lg);right:var(--space-lg);width:52px;height:52px;border-radius:50%;background:var(--color-primary);color:var(--color-white);border:3px solid var(--color-secondary);display:flex;align-items:center;justify-content:center;font-size:var(--size-xl);cursor:pointer;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(20px) scale(0.9);transition:opacity var(--transition-base),visibility var(--transition-base),transform var(--transition-base),background var(--transition-fast);z-index:999;line-height:1}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.back-to-top:hover{background:var(--color-primary-dark);transform:translateY(-4px) scale(1.05)}
.back-to-top:focus-visible{outline:3px solid var(--color-secondary);outline-offset:4px}
.back-to-top svg{width:24px;height:24px;fill:currentColor}
/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  :root{--header-height:64px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:var(--space-md)}
  .footer-contact{grid-column:1 / -1}
  .section-title{font-size:var(--size-xl)}
  .section-number{font-size:var(--size-3xl)}
}
@media (max-width:768px){
  :root{--header-height:60px;--size-3xl:2rem;--size-2xl:1.5rem;--size-xl:1.25rem}
  .header-inner{padding:0 var(--space-sm)}
  .site-logo{font-size:var(--size-md)}
  .nav-toggle{display:flex}
  .site-nav{position:fixed;top:var(--header-height);left:0;right:0;bottom:0;background:var(--color-primary-dark);flex-direction:column;align-items:stretch;gap:0;padding:var(--space-md);transform:translateX(-100%);opacity:0;visibility:hidden;transition:transform var(--transition-base),opacity var(--transition-base),visibility var(--transition-base);overflow-y:auto;z-index:999}
  .site-nav[data-open]{transform:translateX(0);opacity:1;visibility:visible}
  .nav-link{font-size:var(--size-base);padding:var(--space-md);border-bottom:1px solid rgba(255,255,255,0.1);color:var(--color-white-soft);text-align:center;border-radius:0}
  .nav-link:hover{background:rgba(255,255,255,0.1);transform:none}
  .nav-link[aria-current="page"]{background:rgba(255,193,7,0.15);color:var(--color-secondary);box-shadow:none;border-left:4px solid var(--color-secondary)}
  .footer-inner{grid-template-columns:1fr;gap:var(--space-lg)}
  .footer-bottom{flex-direction:column;text-align:center;gap:var(--space-xs)}
  .back-to-top{bottom:var(--space-md);right:var(--space-md);width:46px;height:46px}
  .section-title{font-size:var(--size-lg)}
  .section-number{font-size:var(--size-2xl)}
}
@media (max-width:480px){
  .site-logo{font-size:var(--size-sm)}
  .nav-link{font-size:var(--size-sm);padding:var(--space-sm) var(--space-md)}
  .footer-inner{padding:0 var(--space-sm)}
  .container{padding:0 var(--space-sm)}
}
/* ===== ACCESSIBILITY & MOTION ===== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important;scroll-behavior:auto!important}
  .back-to-top{transition:none}
  .nav-toggle-bar{transition:none}
  .site-nav{transition:none}
  .nav-link{transition:none}
  .btn{transition:none}
}
:focus-visible{outline:3px solid var(--color-secondary);outline-offset:2px}
/* ===== UTILITY ===== */
.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}
.text-center{text-align:center}
.mt-1{margin-top:var(--space-md)}
.mt-2{margin-top:var(--space-lg)}
.mb-1{margin-bottom:var(--space-md)}
.mb-2{margin-bottom:var(--space-lg)}