:root{--gold: #D4AF37;--gold-light: #f1e5ac;--emerald: #0a1f1c;--cream: #fdfaf0;--night-sky: #0f172a;--day-sky: #e0f2fe;--text-dark: #2c3e50;--text-light: #f8fafc;--transition: all .8s cubic-bezier(.4, 0, .2, 1)}body{margin:0;padding:0;background-color:var(--emerald);font-family:Josefin Sans,sans-serif;overflow-x:hidden;color:var(--text-dark);scroll-behavior:smooth}.envelope-wrapper{position:fixed;top:0;left:0;width:100%;height:100vh;display:flex;justify-content:center;align-items:center;z-index:1000;background:radial-gradient(circle,#1a3a34,#0a1f1c);transition:transform 1.2s cubic-bezier(.7,0,.3,1),opacity 1s ease-in-out}.envelope-wrapper.opened{transform:translateY(-100%);opacity:0;pointer-events:none}.envelope{position:relative;width:320px;height:220px;background:var(--emerald);border:2px solid var(--gold);cursor:pointer;box-shadow:0 30px 60px #00000080;transition:transform .3s ease}.envelope:hover{transform:scale(1.02)}.envelope:before{content:"";position:absolute;top:0;left:0;width:0;height:0;border-left:160px solid transparent;border-right:160px solid transparent;border-top:110px solid var(--gold);z-index:2;transition:transform .6s ease;transform-origin:top}.envelope.open-anim:before{transform:rotateX(180deg);z-index:0}.monogram{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:70px;height:70px;border:2px solid var(--gold);border-radius:50%;background:var(--emerald);display:flex;justify-content:center;align-items:center;color:var(--gold);font-family:Alex Brush,cursive;font-size:1.8rem;z-index:3;box-shadow:0 0 15px #d4af374d}.envelope-hint{position:absolute;bottom:15%;color:var(--gold);text-transform:uppercase;letter-spacing:4px;font-size:.9rem;font-weight:600;text-align:center;width:100%}.main-container{min-height:100vh;background-color:var(--day-sky);transition:var(--transition);position:relative;opacity:0;display:none}.main-container.visible{opacity:1;display:block}body.night-mode .main-container{background-color:var(--night-sky);color:var(--text-light)}.theme-toggle{position:fixed;top:20px;left:15px;z-index:100;display:flex;align-items:center;gap:10px;background:#fff3;padding:8px 18px;border-radius:30px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3);box-shadow:0 4px 15px #0000001a}.theme-toggle-label{font-size:.8rem;font-weight:600}.switch{position:relative;display:inline-block;width:50px;height:24px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;inset:0;background-color:gold;transition:.4s;border-radius:34px}.slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;transition:.4s;border-radius:50%}input:checked+.slider{background-color:#334155}input:checked+.slider:before{transform:translate(26px)}.mansion-illustration{height:50vh;position:relative;overflow:hidden;background:linear-gradient(to bottom,#7dd3fc,#e0f2fe);transition:var(--transition)}body.night-mode .mansion-illustration{background:linear-gradient(to bottom,#0f172a,#1e293b)}.mansion-svg{position:absolute;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:800px;height:auto;z-index:2}.mansion-window{fill:#fff;transition:var(--transition)}body.night-mode .mansion-window{fill:#fde047;filter:drop-shadow(0 0 8px #fde047)}.sky-animations{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:999;overflow:hidden}.shooting-star{position:absolute;top:var(--top);left:-150px;width:150px;height:2px;background:linear-gradient(to right,#fff0,#fff);filter:drop-shadow(0 0 8px white);transform:rotate(35deg);opacity:0;display:none}body.night-mode .shooting-star{display:block;animation:shooting var(--duration) linear infinite;animation-delay:var(--delay)}@keyframes shooting{0%{transform:translate(0) translateY(0) rotate(35deg);opacity:0}2%{opacity:1}60%{transform:translate(130vw) translateY(100vh) rotate(35deg);opacity:0}to{transform:translate(130vw) translateY(100vh) rotate(35deg);opacity:0}}.sun-flare{position:fixed;top:5%;right:5%;width:600px;height:600px;background:radial-gradient(circle,#ffffb466,#fff0 70%);border-radius:50%;filter:blur(60px);z-index:0;pointer-events:none;opacity:0;transition:opacity 1s ease}body:not(.night-mode) .sun-flare{opacity:1;animation:sunPulse 12s infinite alternate ease-in-out}@keyframes sunPulse{0%{transform:scale(1) translate(0);opacity:.3}50%{transform:scale(1.4) translate(-40px,40px);opacity:.6}to{transform:scale(1.2) translate(20px,-20px);opacity:.4}}.stars{position:absolute;width:100%;height:100%;opacity:0;transition:var(--transition);pointer-events:none}body.night-mode .stars{opacity:1}.content-card{background:var(--cream);margin:-40px auto 0;width:95%;max-width:700px;border-radius:40px 40px 0 0;padding:60px 30px;position:relative;box-shadow:0 -20px 50px #00000026;transition:var(--transition);z-index:10}body.night-mode .content-card{background:#1e293b;color:var(--text-light);box-shadow:0 -20px 50px #0009}.names-header{text-align:center;margin-bottom:40px}.names-header h1{font-family:Alex Brush,cursive;font-size:clamp(3rem,10vw,4.5rem);color:var(--gold);margin:0;text-shadow:2px 2px 4px rgba(0,0,0,.05)}.names-header h2{font-family:Playfair Display,serif;text-transform:uppercase;letter-spacing:6px;font-size:.9rem;margin-top:15px;opacity:.8}.section-title{font-family:Playfair Display,serif;text-align:center;text-transform:uppercase;letter-spacing:4px;color:var(--gold);margin:60px 0 30px;font-weight:700;position:relative}.section-title:after{content:"❦";display:block;font-size:1.2rem;margin-top:5px;opacity:.5}.details-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px;text-align:center;margin-bottom:50px}.detail-item{padding:25px;border:1px solid rgba(212,175,55,.3);border-radius:20px;background:#ffffff4d;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);transition:transform .3s ease}body.night-mode .detail-item{background:#ffffff0d}.detail-item:hover{transform:translateY(-5px);border-color:var(--gold)}.detail-label{font-size:.75rem;text-transform:uppercase;letter-spacing:2px;opacity:.7;margin-bottom:8px}.detail-value{font-size:1.2rem;font-weight:600}.timeline{position:relative;padding-left:40px;margin:40px 0}.timeline:before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,transparent,var(--gold),transparent);opacity:.4}.timeline-item{position:relative;margin-bottom:35px;opacity:0;transform:translate(-20px);transition:all .6s ease}.timeline-item.reveal{opacity:1;transform:translate(0)}.timeline-item:before{content:"";position:absolute;left:-46px;top:8px;width:14px;height:14px;background:var(--gold);border-radius:50%;box-shadow:0 0 10px var(--gold)}.timeline-time{font-weight:700;color:var(--gold);font-size:1rem;margin-bottom:5px}.btn-rsvp{display:block;width:100%;padding:20px;background:var(--gold);color:#fff;text-align:center;text-decoration:none!important;font-weight:700;border-radius:20px;margin-top:50px;text-transform:uppercase;letter-spacing:3px;box-shadow:0 15px 30px #d4af3766;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;cursor:pointer}.btn-rsvp:hover{transform:translateY(-5px);box-shadow:0 20px 40px #d4af3799;background:#b8962d}.btn-outline-gold{border-color:var(--gold);color:var(--text-dark);transition:all .3s ease}.btn-outline-gold:hover{background-color:var(--gold);color:#fff}body.night-mode .btn-outline-gold{color:var(--gold)!important;border-color:var(--gold)!important;background-color:transparent!important}body.night-mode .btn-outline-gold:hover{background-color:var(--gold)!important;color:var(--night-sky)!important}.countdown-wrapper{margin:30px auto;color:inherit}body.night-mode .countdown-item{background:#ffffff0d;border-color:#d4af374d}.reveal-section{opacity:0;transform:translateY(30px);transition:all 1s ease-out}.reveal-section.active{opacity:1;transform:translateY(0)}@keyframes twinkle{0%,to{opacity:.3;transform:scale(1)}50%{opacity:1;transform:scale(1.2)}}@media(max-width:576px){.content-card{padding:40px 20px}.details-grid{grid-template-columns:1fr}.names-header h1{font-size:3.2rem}}