@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Playfair+Display:wght@700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --green-900:#064e3b;--green-800:#065f46;--green-700:#047857;--green-600:#059669;
  --green-500:#10b981;--green-400:#34d399;--green-300:#6ee7b7;--green-100:#d1fae5;
  --blue-900:#0c4a6e;--blue-700:#0369a1;--blue-500:#0ea5e9;--blue-300:#7dd3fc;--blue-100:#e0f2fe;
  --earth-500:#c2410c;--earth-300:#fb923c;--earth-100:#ffedd5;
  --gray-900:#111827;--gray-800:#1f2937;--gray-700:#374151;--gray-600:#4b5563;
  --gray-500:#6b7280;--gray-400:#9ca3af;--gray-300:#d1d5db;--gray-200:#e5e7eb;--gray-100:#f3f4f6;
  --white:#fff;--black:#000;
  --primary:#047857;--primary-light:#10b981;--primary-dark:#064e3b;
  --secondary:#0ea5e9;--danger:#ef4444;--success:#10b981;--warning:#f59e0b;
  --bg-primary:#f0fdf4;--bg-secondary:#fff;
  --bg-card:rgba(255,255,255,0.88);--bg-glass:rgba(255,255,255,0.15);
  --text-primary:#0f2417;--text-secondary:#374151;--text-muted:#6b7280;
  --border-color:rgba(5,150,105,0.2);--shadow-color:rgba(6,78,59,0.12);
  --font-primary:'Space Grotesk','Inter',sans-serif;
  --font-heading:'Playfair Display',serif;
  --section-py:100px;--container-max:1280px;--container-px:clamp(16px,5vw,80px);
  --radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-xl:32px;--radius-full:9999px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.08);
  --shadow-md:0 4px 16px rgba(6,78,59,.10),0 2px 6px rgba(0,0,0,.06);
  --shadow-lg:0 10px 40px rgba(6,78,59,.15),0 4px 12px rgba(0,0,0,.08);
  --shadow-xl:0 20px 60px rgba(6,78,59,.20),0 8px 20px rgba(0,0,0,.10);
  --shadow-glow:0 0 40px rgba(16,185,129,.25);
  --transition-fast:.15s ease;--transition-base:.3s cubic-bezier(.4,0,.2,1);
  --transition-slow:.6s cubic-bezier(.4,0,.2,1);--transition-spring:.5s cubic-bezier(.34,1.56,.64,1);
  --z-navbar:1000;--z-modal:2000;--z-toast:3000;--z-loading:9999;
}

[data-theme="dark"] {
  --bg-primary:#071a0f;--bg-secondary:#0d2818;
  --bg-card:rgba(13,40,24,0.9);--bg-glass:rgba(16,185,129,0.08);
  --text-primary:#e8f5e9;--text-secondary:#a7f3d0;--text-muted:#6b7280;
  --border-color:rgba(52,211,153,0.15);
  --shadow-md:0 4px 16px rgba(0,0,0,.3),0 2px 6px rgba(0,0,0,.2);
  --shadow-lg:0 10px 40px rgba(0,0,0,.4),0 4px 12px rgba(0,0,0,.25);
  --shadow-xl:0 20px 60px rgba(0,0,0,.5),0 8px 20px rgba(0,0,0,.3);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Poppins',sans-serif;background:var(--bg-primary);color:var(--text-primary);
  line-height:1.6;overflow-x:hidden;transition:background .6s ease,color .6s ease}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{cursor:pointer;font-family:var(--font-primary);border:none;outline:none;background:none}
input,textarea,select{font-family:var(--font-primary);outline:none}
::selection{background:var(--green-300);color:var(--green-900)}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg-primary)}
::-webkit-scrollbar-thumb{background:var(--green-600);border-radius:var(--radius-full)}

/* TYPOGRAPHY */
h1,h2,h3,h4,h5,h6{line-height:1.2;font-weight:700}
.text-gradient{background:linear-gradient(135deg,var(--green-400),var(--blue-300),var(--green-300));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* LAYOUT */
.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--container-px)}
.section{padding:var(--section-py) 0;position:relative}
.section-header{text-align:center;margin-bottom:60px}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.15em;color:var(--primary-light);
  background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.25);
  padding:6px 16px;border-radius:var(--radius-full);margin-bottom:16px}
.section-title{font-size:clamp(1.8rem,4vw,3rem);font-weight:800;color:var(--text-primary);
  margin-bottom:16px;letter-spacing:-.02em}
.section-desc{font-size:1.05rem;color:var(--text-muted);max-width:620px;margin:0 auto;line-height:1.7}

/* HERO OVERLAY & CONTENT */
.hero::before{
    content:"";
    position:absolute;
    inset:0;
    background:rgba(0,0,0,.55);
    z-index:1;
}

.hero-content{
    position:relative;
    z-index:2;
}

.hero-title{
    text-shadow:
    0 5px 20px rgba(0,0,0,.7),
    0 10px 40px rgba(0,0,0,.5);
}

.hero-desc{
    text-shadow:
    0 3px 10px rgba(0,0,0,.7);
}

.hero-bg img{
    filter:brightness(.45) blur(1px);
    transform:scale(1.05);
}

/* GLASS CARD */
.glass-card{
    background:rgba(255,255,255,.1);
    backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,.2);
    box-shadow:0 8px 32px rgba(0,0,0,.1);
}
.glass-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-xl)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-full);font-size:.95rem;font-weight:600;
  letter-spacing:.02em;transition:all .3s ease;position:relative;overflow:hidden}

.btn:hover{
    transform:translateY(-4px);
    box-shadow:0 10px 25px rgba(0,0,0,.2);
}
.btn-primary{background:linear-gradient(135deg,var(--green-600),var(--green-700));color:#fff;
  box-shadow:0 4px 15px rgba(5,150,105,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(5,150,105,.5)}
.btn-outline{background:transparent;color:var(--primary-light);border:2px solid var(--primary-light)}
.btn-outline:hover{background:var(--primary-light);color:#fff;transform:translateY(-2px)}
.btn-glass{background:rgba(255,255,255,.15);backdrop-filter:blur(10px);color:#fff;
  border:1px solid rgba(255,255,255,.3)}
.btn-glass:hover{background:rgba(255,255,255,.25);transform:translateY(-2px)}
.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;
  box-shadow:0 4px 15px rgba(239,68,68,.4)}
.btn-danger:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(239,68,68,.5)}

/* SCROLL PROGRESS */
#scroll-progress{position:fixed;top:0;left:0;height:3px;width:0%;
  background:linear-gradient(90deg,var(--green-400),var(--blue-300),var(--green-500));
  z-index:calc(var(--z-navbar)+1);box-shadow:0 0 10px rgba(16,185,129,.6);transition:width .1s linear}

/* SCROLL REVEAL */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .7s ease,transform .7s cubic-bezier(.34,1.56,.64,1)}
.reveal.revealed{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-40px);transition:opacity .7s ease,transform .7s cubic-bezier(.34,1.56,.64,1)}
.reveal-left.revealed{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(40px);transition:opacity .7s ease,transform .7s cubic-bezier(.34,1.56,.64,1)}
.reveal-right.revealed{opacity:1;transform:translateX(0)}
.reveal-scale{opacity:0;transform:scale(.85);transition:opacity .7s ease,transform .7s cubic-bezier(.34,1.56,.64,1)}
.reveal-scale.revealed{opacity:1;transform:scale(1)}
.delay-1{transition-delay:.1s}.delay-2{transition-delay:.2s}.delay-3{transition-delay:.3s}
.delay-4{transition-delay:.4s}.delay-5{transition-delay:.5s}.delay-6{transition-delay:.6s}

/* LOADING SCREEN */
#loading-screen{position:fixed;inset:0;z-index:var(--z-loading);background:linear-gradient(135deg,#064e3b,#065f46);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;
  transition:opacity .6s ease,visibility .6s ease}
#loading-screen.hidden{opacity:0;visibility:hidden;pointer-events:none}
.loading-logo{font-size:4rem;animation:loadingPulse 1.2s ease-in-out infinite}
.loading-text{font-family:var(--font-heading);font-size:1.4rem;color:var(--green-300);letter-spacing:.05em;text-align:center}
.loading-sub{font-size:.85rem;color:rgba(110,231,183,.6);letter-spacing:.1em}
.loading-bar{width:220px;height:3px;background:rgba(255,255,255,.15);border-radius:var(--radius-full);overflow:hidden;margin-top:8px}
.loading-bar-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--green-400),var(--blue-300));
  border-radius:var(--radius-full);animation:loadingFill 2s ease-in-out forwards}
@keyframes loadingPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}}
@keyframes loadingFill{0%{width:0%}60%{width:75%}100%{width:100%}}

/* GRID */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* BACK TO TOP */
#back-to-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;border-radius:var(--radius-full);
  background:linear-gradient(135deg,var(--green-600),var(--green-700));color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:var(--shadow-lg);
  z-index:100;opacity:0;transform:translateY(20px);transition:all var(--transition-base);border:none}
#back-to-top.visible{opacity:1;transform:translateY(0)}
#back-to-top:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}

/* TOAST */
.toast-container{position:fixed;bottom:90px;right:30px;z-index:var(--z-toast);display:flex;flex-direction:column;gap:10px}
.toast{background:var(--bg-card);backdrop-filter:blur(20px);border:1px solid var(--border-color);
  border-radius:var(--radius-md);padding:14px 20px;display:flex;align-items:center;gap:12px;
  box-shadow:var(--shadow-lg);min-width:280px;animation:toastSlide .4s ease}
.toast.success{border-left:4px solid var(--green-500)}
.toast.error{border-left:4px solid var(--danger)}
.toast.info{border-left:4px solid var(--blue-500)}
@keyframes toastSlide{from{opacity:0;transform:translateX(50px)}to{opacity:1;transform:translateX(0)}}

/* BG PATTERNS */
.bg-alt{background:var(--bg-secondary)}
.bg-green-dark{background:linear-gradient(135deg,var(--green-900),var(--green-800))}
.bg-pattern{background:var(--bg-primary);
  background-image:radial-gradient(at 20% 20%,rgba(16,185,129,.08) 0,transparent 50%),
    radial-gradient(at 80% 80%,rgba(14,165,233,.06) 0,transparent 50%)}

/* BADGE */
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:var(--radius-full);font-size:.75rem;font-weight:600}
.badge-green{background:var(--green-100);color:var(--green-800)}
.badge-blue{background:var(--blue-100);color:var(--blue-900)}
.badge-red{background:#fee2e2;color:#991b1b}
.badge-orange{background:var(--earth-100);color:var(--earth-500)}

/* SECTION ANIMATION */
section{
    animation:fadeUp 1s ease;
}

@keyframes fadeUp{
    from{
        opacity:0;
        transform:translateY(40px);
    }

    to{
        opacity:1;
        transform:translateY(0);
    }
}

/* RESPONSIVE */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  :root{--section-py:70px;--container-px:20px}
  .section-title{font-size:1.75rem}
  .section-header{margin-bottom:40px}
}
@media(max-width:640px){
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
}
@media(max-width:480px){
  :root{--section-py:50px}
}