:root{--bg1:#0b8a3c;--bg2:#c62828;--card:rgba(255,255,255,0.96);--glass:rgba(255,255,255,0.12);--accent:#ffffff}
*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter,system-ui,Arial,sans-serif;background-image:repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 10px), linear-gradient(180deg,var(--bg1),var(--bg2));background-size:auto,cover;-webkit-font-smoothing:antialiased;color:#fff}
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:36px}
.card{width:100%;max-width:420px;background:linear-gradient(180deg,rgba(255,255,255,0.06),rgba(255,255,255,0.03));border-radius:20px;padding:28px;backdrop-filter:blur(6px);box-shadow:0 8px 30px rgba(0,0,0,0.25);position:relative;z-index:2}

/* Leaf field (background) */
.bird-field{position:fixed;inset:0;pointer-events:none;overflow:visible;z-index:1}
.leaf-field{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.leaf{position:absolute;top:-10vh;opacity:0.95;will-change:transform,opacity;font-size:28px;transform-origin:center;}
@keyframes leaf-fall{0%{transform:translateY(-10vh) translateX(0) rotate(0deg);opacity:1}100%{transform:translateY(110vh) translateX(80px) rotate(360deg);opacity:0.9}}

/* Birds */
.bird{position:absolute;top:0;left:-10vw;z-index:1;opacity:0.95;will-change:transform,opacity;display:block}
.bird svg{display:block;filter:drop-shadow(0 4px 8px rgba(0,0,0,0.18));}
.bird.right{animation-name:fly-right;}
.bird.left{animation-name:fly-left;}
@keyframes fly-right{0%{transform:translateX(-10vw) translateY(0) scale(1) rotate(0deg);opacity:1}100%{transform:translateX(120vw) translateY(10vh) scale(1) rotate(10deg);opacity:0.95}}
@keyframes fly-left{0%{transform:translateX(110vw) translateY(0) scale(1) rotate(0deg);opacity:1}100%{transform:translateX(-120vw) translateY(10vh) scale(1) rotate(-10deg);opacity:0.95}}

/* Time layer (sky + sun/moon) */
.time-layer{position:fixed;inset:0;pointer-events:none;z-index:-1;transition:background 1.1s ease}
.time-layer .sun,.time-layer .moon{position:absolute;width:80px;height:80px;border-radius:50%;transform:translate(-50%,-50%);transition:opacity 1s ease, transform 1s linear;box-shadow:0 8px 30px rgba(0,0,0,0.12)}
.time-layer .sun{background:radial-gradient(circle at 30% 30%,#fff3 0%,#ffd54d 45%,#ffb300 100%);opacity:0}
.time-layer .moon{background:radial-gradient(circle at 30% 30%,#fff 0%,#cfd8dc 45%,#b0bec5 100%);opacity:0;box-shadow:0 6px 18px rgba(0,0,0,0.08) inset}

/* day / night backgrounds */
.time-layer.day{background:linear-gradient(180deg,rgba(135,206,235,0.12),rgba(255,255,255,0.02));}
.time-layer.night{background:linear-gradient(180deg,rgba(6,12,34,0.65),rgba(20,30,48,0.55));}

/* sun/moon visibility */
.time-layer.day .sun{opacity:1}
.time-layer.day .moon{opacity:0}
.time-layer.night .sun{opacity:0}
.time-layer.night .moon{opacity:1}
.hero{display:flex;flex-direction:column;align-items:center;gap:10px;margin-bottom:18px;text-align:center}
.avatar{width:88px;height:88px;border-radius:50%;background:var(--card);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--bg2);font-size:28px;box-shadow:0 6px 16px rgba(0,0,0,0.18)}
.logo{width:88px;height:88px;border-radius:16px;object-fit:cover;display:block;box-shadow:0 6px 16px rgba(0,0,0,0.18);border:3px solid rgba(255,255,255,0.06)}
h1{margin:0;font-size:20px;font-weight:700}
p.tag{margin:0;color:#fff9a0;font-size:13px;opacity:0.95}
.links{display:flex;flex-direction:column;gap:12px;margin-top:6px}
.btn{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:12px;text-decoration:none;color:var(--accent);background:linear-gradient(90deg,rgba(255,255,255,0.06),rgba(255,255,255,0.02));box-shadow:inset 0 -2px 0 rgba(255,255,255,0.03);transition:transform .18s ease,box-shadow .18s ease;position:relative;overflow:hidden}
.btn:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,0.25)}
.icon{width:28px;height:28px;flex:0 0 28px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:rgba(255,255,255,0.08)}
.btn .txt{font-weight:600;font-size:15px}
.sub{font-size:12px;opacity:0.9;margin-left:auto}
footer{margin-top:14px;text-align:center;font-size:12px;opacity:0.85;color:#fff}
@media (max-width:420px){.card{padding:20px;border-radius:18px}.avatar{width:76px;height:76px;font-size:24px}}
/* small entrance animation */
.card{opacity:0;transform:translateY(10px);animation:enter .45s cubic-bezier(.2,.9,.3,1) forwards}
@keyframes enter{to{opacity:1;transform:none}}

/* Ripple effect */
.ripple{position:absolute;border-radius:50%;transform:scale(0);background:rgba(255,255,255,0.12);animation:ripple .6s linear;pointer-events:none}
@keyframes ripple{to{transform:scale(4);opacity:0}}

/* Accessibility focus */
.btn:focus{outline:3px solid rgba(255,255,255,0.12);outline-offset:3px}
details{background:rgba(255,255,255,0.02);padding:12px;border-radius:10px;color:#fff}
summary{cursor:pointer;font-weight:600}

/* Ensure icons don't shrink */
.icon svg{display:block}