CSS .door-entry { --door-width: min(68vw, 310px); --door-height: calc(var(--door-width) * 1.45); --accent: #d6b06c; position: relative; display: grid; min-height: min(760px, 90svh); place-items: center; overflow: hidden; padding: clamp(3rem, 8vw, 7rem) 1.25rem; color: #f9f7f2; background: radial-gradient(circle at 50% 42%, rgba(214, 176, 108, 0.13), transparent 28rem), linear-gradient(145deg, #171b22 0%, #090b0f 100%); isolation: isolate; } .door-entry::before { position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px); background-size: 34px 34px; content: ""; mask-image: radial-gradient(circle at center, black, transparent 75%); } .door-scene { position: relative; display: grid; width: min(100%, 760px); min-height: calc(var(--door-height) + 4rem); place-items: center; perspective: 1400px; } .door-stage { position: relative; z-index: 2; filter: drop-shadow(0 35px 35px rgba(0, 0, 0, 0.42)); transition: opacity 700ms cubic-bezier(0.22, 1, 0.36, 1), transform 900ms cubic-bezier(0.22, 1, 0.36, 1), filter 700ms ease; will-change: transform, opacity; } .door-frame { position: relative; width: var(--door-width); height: var(--door-height); padding: clamp(8px, 1.4vw, 13px); border-radius: 9px 9px 3px 3px; background: linear-gradient(135deg, #3b2b24, #17120f 65%); box-shadow: inset 0 1px rgba(255, 255, 255, 0.14), 0 0 0 2px #090706, 0 24px 55px rgba(0, 0, 0, 0.45); transform-style: preserve-3d; } .door-frame::after { position: absolute; right: -16%; bottom: -4%; left: -16%; height: 7%; border-radius: 50%; background: rgba(0, 0, 0, 0.52); content: ""; filter: blur(15px); transform: translateZ(-60px); } .door-panel { position: relative; width: 100%; height: 100%; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 4px 4px 2px 2px; background: linear-gradient(90deg, transparent 48%, rgba(255, 255, 255, 0.035), transparent 52%), radial-gradient(circle at 35% 24%, rgba(255, 255, 255, 0.07), transparent 32%), linear-gradient(135deg, #634838 0%, #38271f 48%, #201713 100%); box-shadow: inset 0 0 0 8px rgba(16, 10, 8, 0.24), inset 0 0 45px rgba(0, 0, 0, 0.3); transform-origin: left center; transform-style: preserve-3d; transition: transform 1250ms cubic-bezier(0.72, 0, 0.2, 1); will-change: transform; } .door-panel::before, .door-panel::after { position: absolute; right: 12%; left: 12%; height: 29%; border: 1px solid rgba(214, 176, 108, 0.2); border-radius: 2px; background: rgba(0, 0, 0, 0.075); box-shadow: inset 0 0 0 5px rgba(0, 0, 0, 0.08), 0 1px rgba(255, 255, 255, 0.035); content: ""; } .door-panel::before { top: 9%; } .door-panel::after { bottom: 9%; } .door-highlight { position: absolute; inset: 0; z-index: 1; pointer-events: none; background: linear-gradient( 100deg, transparent 20%, rgba(255, 255, 255, 0.075) 47%, transparent 72% ); transform: translateX(-100%); transition: transform 900ms ease; } .door-lock { position: absolute; top: 50%; left: 50%; z-index: 4; display: grid; width: clamp(68px, 17vw, 88px); aspect-ratio: 1; place-items: center; border: 1px solid rgba(255, 255, 255, 0.2); border-radius: 50%; color: #1b1712; background: linear-gradient(145deg, #f4d99c, #b98a43); box-shadow: 0 14px 30px rgba(0, 0, 0, 0.34), inset 0 1px rgba(255, 255, 255, 0.75); cursor: pointer; transform: translate(-50%, -50%); transition: transform 250ms ease, box-shadow 250ms ease, background 250ms ease; -webkit-tap-highlight-color: transparent; } .door-lock:hover { box-shadow: 0 17px 36px rgba(0, 0, 0, 0.42), 0 0 0 7px rgba(214, 176, 108, 0.1), inset 0 1px rgba(255, 255, 255, 0.8); transform: translate(-50%, -50%) scale(1.06); } .door-lock:focus-visible { outline: 3px solid #fff; outline-offset: 5px; } .door-lock:active { transform: translate(-50%, -50%) scale(0.96); } .door-lock:disabled { cursor: default; } .lock-icon { position: absolute; width: 44%; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2.6; transition: opacity 280ms ease, transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1); } .lock-icon--open { opacity: 0; transform: scale(0.55) rotate(-20deg); } .door-handle { position: absolute; top: 50%; right: 9%; z-index: 3; width: 13px; aspect-ratio: 1; border-radius: 50%; background: #c49a52; box-shadow: 0 2px 5px rgba(0, 0, 0, 0.6), inset 0 1px rgba(255, 255, 255, 0.45); transform: translateY(-50%); } /* Animation states */ .door-stage.is-unlocked .lock-icon--closed { opacity: 0; transform: scale(0.55) rotate(20deg); } .door-stage.is-unlocked .lock-icon--open { opacity: 1; transform: scale(1) rotate(0); } .door-stage.is-unlocked .door-highlight { transform: translateX(100%); } .door-stage.is-opening .door-panel { transform: rotateY(-104deg); } .door-stage.is-vanishing { opacity: 0; filter: blur(8px) drop-shadow(0 45px 45px rgba(0, 0, 0, 0)); pointer-events: none; transform: scale(1.34) translateZ(100px); } .welcome-message { position: absolute; z-index: 1; max-width: 650px; padding: 1.5rem; text-align: center; opacity: 0; filter: blur(12px); transform: translateY(28px) scale(0.96); transition: opacity 900ms ease, transform 1000ms cubic-bezier(0.22, 1, 0.36, 1), filter 900ms ease; } .welcome-message.is-visible { opacity: 1; filter: blur(0); transform: translateY(0) scale(1); } .welcome-eyebrow { display: block; margin-bottom: 0.7rem; color: var(--accent); font: 600 0.75rem/1.2 system-ui, sans-serif; letter-spacing: 0.2em; text-transform: uppercase; } .welcome-message h2 { margin: 0; font: 500 clamp(3.5rem, 13vw, 8rem) / 0.95 Georgia, serif; letter-spacing: -0.055em; } .welcome-message p { margin: 1.25rem auto 0; color: rgba(255, 255, 255, 0.68); font: 400 clamp(0.95rem, 2vw, 1.1rem) / 1.6 system-ui, sans-serif; } @media (max-width: 480px) { .door-entry { --door-width: min(70vw, 270px); min-height: 78svh; } .door-scene { min-height: calc(var(--door-height) + 2rem); } .door-stage.is-vanishing { transform: scale(1.22) translateZ(70px); } } @media (prefers-reduced-motion: reduce) { .door-stage, .door-panel, .door-highlight, .lock-icon, .welcome-message { transition-duration: 80ms; } } JavaScript