/* ===== RESET & VARIABLES ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital,wght@0,400;1,400&family=JetBrains+Mono:wght@400;500&display=swap');
@import url('https://api.fontshare.com/v2/css?f[]=general-sans@400,500,600,700&display=swap');
:root{
  /* Bicolor Leaf design system */
  --ink:#0E1A2B;--paper:#FAF7F1;--paper-alt:#F2EDE2;--line:#D9D1BF;--muted:#5B6472;
  --accent-red:#C6402E;--accent-blue:#1E4B8F;--accent-pine:#2E5D4A;--accent-ochre:#B8863A;
  /* Semantic aliases (kept for cascade through existing styles) */
  --primary:#0E1A2B;--primary-dark:#000;--primary-light:#1f2c40;--primary-soft:#F2EDE2;--primary-50:#FAF7F1;
  --accent:#C6402E;--accent-dark:#a93624;
  --success:#2E5D4A;--success-soft:#dde9e3;
  --danger:#C6402E;--danger-soft:#fae3df;
  --bg:#FAF7F1;--white:#FFFFFF;--text:#0E1A2B;--text-light:#5B6472;--text-muted:#8a8675;
  --border:#D9D1BF;--border-light:#EDE7D6;
  --shadow:0 1px 3px rgba(14,26,43,.05),0 1px 2px rgba(14,26,43,.03);
  --shadow-md:0 4px 20px rgba(14,26,43,.07);
  --shadow-lg:0 10px 40px rgba(14,26,43,.1);
  --radius:12px;--radius-sm:8px;--radius-lg:16px;
  --max-w:1100px;
  --transition:all .2s ease;
  --font-sans:"General Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-serif:"Instrument Serif",Georgia,serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,monospace;
}
html{scroll-behavior:smooth;scroll-padding-top:5rem}
body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{cursor:pointer;border:none;background:none;font-family:inherit}
input,textarea,select{font-family:inherit;font-size:1rem}

/* ===== UTILITY ===== */
.container{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.75rem;border-radius:50px;font-weight:600;font-size:.95rem;transition:var(--transition);border:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-secondary{background:var(--white);color:var(--primary);border:2px solid var(--primary)}
.btn-secondary:hover{background:var(--primary-50)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#b91c1c}
.btn-sm{padding:.5rem 1.25rem;font-size:.85rem}
.btn-lg{padding:1rem 2.5rem;font-size:1.1rem}
.btn-block{width:100%}
.text-center{text-align:center}
.text-muted{color:var(--text-light)}
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}
.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}

/* ===== NAV ===== */
nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:.75rem 0}
.nav-inner{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.2rem;font-weight:600;color:var(--text);display:flex;align-items:center;gap:.55rem;letter-spacing:-.02em;font-family:var(--font-sans)}
.logo svg{flex-shrink:0;display:block}
.logo .logo-ca{font-family:var(--font-serif);font-style:italic;font-weight:400;color:var(--accent);margin-left:.15rem;font-size:1.15em;line-height:1}
.logo svg{width:28px;height:28px}
.nav-links{display:flex;gap:2rem;list-style:none;align-items:center}
.nav-links a{color:var(--text-light);font-size:.9rem;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--primary)}
.nav-cta{background:var(--primary);color:#fff!important;padding:.5rem 1.25rem;border-radius:50px;font-weight:600;transition:var(--transition)}
.nav-cta:hover{background:var(--primary-dark)}
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);margin:5px 0;border-radius:2px;transition:all .3s}

/* ===== SECTION ===== */
.section{padding:5rem 1.5rem}
.section-title{font-size:2rem;font-weight:700;text-align:center;margin-bottom:.75rem;letter-spacing:-.02em}
.section-subtitle{text-align:center;color:var(--text-light);max-width:600px;margin:0 auto 3rem;font-size:1.05rem}
.section-badge{display:inline-block;padding:.35rem 1rem;border-radius:50px;background:var(--primary-soft);color:var(--primary);font-size:.8rem;font-weight:600;letter-spacing:.02em;margin-bottom:1rem}

/* ===== CARDS ===== */
.card{background:var(--white);border-radius:var(--radius);border:1px solid var(--border);padding:2rem;transition:var(--transition)}
.card:hover{box-shadow:var(--shadow-md);border-color:var(--primary-soft)}
.card-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:1rem;font-size:1.5rem}
.card-icon.blue{background:var(--primary-soft);color:var(--primary)}
.card-icon.green{background:var(--success-soft);color:var(--success)}
.card-icon.amber{background:#fef3c7;color:var(--accent)}

/* ===== FORMS ===== */
.form-group{margin-bottom:1.25rem}
.form-group label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.4rem;color:var(--text)}
.form-input{width:100%;padding:.75rem 1rem;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;transition:var(--transition);background:var(--white)}
.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.form-input.error{border-color:var(--danger)}
.form-error{color:var(--danger);font-size:.8rem;margin-top:.3rem}

/* ===== MODAL ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;display:none;align-items:center;justify-content:center;padding:1rem}
.modal-overlay.active{display:flex}
.modal{background:var(--white);border-radius:var(--radius-lg);padding:2.5rem;max-width:420px;width:100%;box-shadow:var(--shadow-lg);position:relative}
.modal-close{position:absolute;top:1rem;right:1rem;font-size:1.25rem;color:var(--text-muted);cursor:pointer;background:none;border:none;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:var(--transition)}
.modal-close:hover{background:var(--border-light);color:var(--text)}

/* ===== FOOTER ===== */
footer{background:var(--text);color:#fff;padding:3rem 1.5rem 1.5rem}
.footer-inner{max-width:var(--max-w);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem}
.footer-col h4{font-size:.95rem;margin-bottom:1rem;color:#fff}
.footer-col p,.footer-col a{color:var(--text-muted);font-size:.9rem;line-height:1.8}
.footer-col a:hover{color:#fff}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:.4rem}
.footer-bottom{max-width:var(--max-w);margin:2rem auto 0;padding-top:1.5rem;border-top:1px solid #334155;text-align:center;color:var(--text-muted);font-size:.85rem}

/* ===== TOAST ===== */
.toast{position:fixed;top:1.5rem;right:1.5rem;padding:1rem 1.5rem;border-radius:var(--radius-sm);color:#fff;font-weight:500;font-size:.9rem;z-index:300;transform:translateX(120%);transition:transform .3s ease;max-width:360px}
.toast.show{transform:translateX(0)}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
.toast.info{background:var(--primary)}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--white);border-bottom:1px solid var(--border);flex-direction:column;padding:1.5rem;gap:1rem}
  .nav-links.active{display:flex}
  .hamburger{display:block}
  .hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
  .hamburger.active span:nth-child(2){opacity:0}
  .hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
  .footer-inner{grid-template-columns:1fr}
  .section{padding:3rem 1rem}
}