* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    overflow: hidden;
    height: 100vh;
    background-color: #1a1008;
    font-family: 'Arial', sans-serif;
}

/* =================== */
/* The door (full screen) */
/* =================== */

.door {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    z-index: 10;

    /* Wood grain background */
    background:
        /* Vertical wood grain lines */
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 40px,
            rgba(0, 0, 0, 0.03) 40px,
            rgba(0, 0, 0, 0.03) 41px
        ),
        /* Base wood color with subtle variation */
        linear-gradient(
            180deg,
            #6b4420 0%,
            #7a5028 8%,
            #6d4522 16%,
            #7f5530 25%,
            #6b4420 33%,
            #744d26 42%,
            #7a5028 50%,
            #6d4522 58%,
            #7f5530 67%,
            #6b4420 75%,
            #744d26 83%,
            #7a5028 92%,
            #6b4420 100%
        );

    /* Subtle inner shadow for depth */
    box-shadow: inset 0 0 80px rgba(0, 0, 0, 0.3);
}

/* Door panel insets (decorative rectangles) */
.door::before,
.door::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: min(260px, 60%);
    height: 28%;
    border: 3px solid rgba(0, 0, 0, 0.12);
    border-radius: 3px;
    box-shadow:
        inset 0 0 15px rgba(0, 0, 0, 0.08),
        0 0 8px rgba(0, 0, 0, 0.05);
}
.door::before { top: 6%; }
.door::after { bottom: 18%; }

/* =================== */
/* Peephole            */
/* =================== */

.peephole {
    position: absolute;
    top: 18%;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: radial-gradient(circle at 40% 40%, #2a2a2a, #111 60%, #000);
    border: 3px solid #8a7040;
    box-shadow:
        0 0 0 2px rgba(0, 0, 0, 0.3),
        inset 0 0 8px rgba(0, 0, 0, 0.8);
}

/* =================== */
/* Door knocker        */
/* =================== */

.knocker {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 110px;
    z-index: 20;
}

/* Mounting plate */
.knocker-mount {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #c9a84c, #a08030 50%, #8a6e28);
    box-shadow:
        0 2px 6px rgba(0, 0, 0, 0.5),
        inset 0 1px 2px rgba(255, 255, 255, 0.2);
    border: 2px solid #6d5520;
}

/* Hinge connecting mount to ring */
.knocker-hinge {
    position: absolute;
    top: 28px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 14px;
    background: linear-gradient(180deg, #a08030, #8a6e28);
    border-radius: 2px;
}

/* The ring */
.knocker-ring {
    position: absolute;
    top: 32px;
    left: 50%;
    transform: translateX(-50%);
    width: 52px;
    height: 60px;
    border: 7px solid #b8952e;
    border-radius: 50%;
    background: transparent;
    box-shadow:
        0 3px 8px rgba(0, 0, 0, 0.5),
        inset 0 1px 3px rgba(255, 255, 255, 0.15);
    transform-origin: top center;
    transition: transform 0.08s ease-in;
}

/* Knocker ring highlight */
.knocker-ring::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 2px;
    width: 14px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
}

/* Knocker pulse hint — draws attention */
@keyframes knocker-pulse {
    0%, 100% {
        box-shadow:
            0 3px 8px rgba(0, 0, 0, 0.5),
            inset 0 1px 3px rgba(255, 255, 255, 0.15),
            0 0 0 0 rgba(200, 170, 80, 0);
    }
    50% {
        box-shadow:
            0 3px 8px rgba(0, 0, 0, 0.5),
            inset 0 1px 3px rgba(255, 255, 255, 0.15),
            0 0 15px 4px rgba(200, 170, 80, 0.35);
    }
}

.knocker-ring {
    animation: knocker-pulse 2s ease-in-out infinite;
}

/* Stop pulsing after first knock */
.knocker-ring.tapped {
    animation: none;
}

/* Knocker animation */
@keyframes knock-hit {
    0% { transform: translateX(-50%) rotateX(0deg); }
    30% { transform: translateX(-50%) rotateX(-35deg); }
    60% { transform: translateX(-50%) rotateX(8deg); }
    80% { transform: translateX(-50%) rotateX(-3deg); }
    100% { transform: translateX(-50%) rotateX(0deg); }
}

.knocker-ring.knocking {
    animation: knock-hit 0.35s ease-out;
}

/* =================== */
/* Light behind door   */
/* =================== */

.light-gap {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at 30% 50%,
        rgba(255, 245, 200, 1) 0%,
        rgba(255, 240, 170, 0.8) 25%,
        rgba(255, 235, 140, 0.4) 50%,
        rgba(200, 180, 100, 0.1) 75%,
        transparent 100%
    );
    z-index: 5;
    display: flex;
    align-items: center;
    padding-left: 5%;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease-in;
}

/* =================== */
/* Screen shake levels */
/* =================== */

@keyframes shake-light {
    0%, 100% { transform: translate(0, 0); }
    20% { transform: translate(-3px, 2px); }
    40% { transform: translate(3px, -2px); }
    60% { transform: translate(-2px, 1px); }
    80% { transform: translate(2px, -1px); }
}

@keyframes shake-medium {
    0%, 100% { transform: translate(0, 0); }
    10% { transform: translate(-6px, 3px); }
    20% { transform: translate(5px, -4px); }
    30% { transform: translate(-4px, 2px); }
    40% { transform: translate(4px, -3px); }
    50% { transform: translate(-3px, 4px); }
    60% { transform: translate(5px, -2px); }
    70% { transform: translate(-4px, 2px); }
    80% { transform: translate(3px, -4px); }
    90% { transform: translate(-2px, 1px); }
}

@keyframes shake-heavy {
    0%, 100% { transform: translate(0, 0); }
    5% { transform: translate(-10px, 5px); }
    10% { transform: translate(8px, -7px); }
    15% { transform: translate(-7px, 4px); }
    20% { transform: translate(9px, -6px); }
    25% { transform: translate(-6px, 8px); }
    30% { transform: translate(7px, -4px); }
    35% { transform: translate(-9px, 5px); }
    40% { transform: translate(5px, -8px); }
    45% { transform: translate(-4px, 6px); }
    50% { transform: translate(8px, -3px); }
    55% { transform: translate(-6px, 7px); }
    60% { transform: translate(7px, -5px); }
    65% { transform: translate(-5px, 3px); }
    70% { transform: translate(4px, -6px); }
    80% { transform: translate(-3px, 2px); }
    90% { transform: translate(2px, -1px); }
}

.door.shake-light {
    animation: shake-light 0.25s ease-out;
}

.door.shake-medium {
    animation: shake-medium 0.35s ease-out;
}

.door.shake-heavy {
    animation: shake-heavy 0.45s ease-out;
}

/* Door slide open for reveal */
@keyframes door-slide-open {
    0% { transform: translateX(0); }
    100% { transform: translateX(min(40vw, 300px)); }
}

@keyframes door-slam-shut {
    0% { transform: translateX(min(40vw, 300px)); }
    100% { transform: translateX(0); }
}

.door.sliding-open {
    animation: door-slide-open 0.4s ease-out forwards;
}

.door.slamming-shut {
    animation: door-slam-shut 0.06s ease-in forwards;
}

/* =================== */
/* Message             */
/* =================== */

.message {
    position: fixed;
    top: 50%;
    left: 15%;
    transform: translate(-120%, -50%);
    font-size: 3.5rem;
    font-weight: 900;
    color: #cc0000;
    text-shadow: 3px 3px 15px rgba(0, 0, 0, 0.6);
    white-space: nowrap;
    user-select: none;
    opacity: 0;
    z-index: 20;
    pointer-events: none;
}

@keyframes slide-in-angry {
    0% {
        transform: translate(-120%, -50%);
        opacity: 0;
    }
    15% {
        opacity: 1;
    }
    65% {
        transform: translate(12%, -50%);
    }
    82% {
        transform: translate(-4%, -50%);
    }
    100% {
        transform: translate(0%, -50%);
        opacity: 1;
    }
}

.message.visible {
    animation: slide-in-angry 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* =================== */
/* Sound toggle        */
/* =================== */

.sound-toggle {
    position: fixed;
    top: 15px;
    left: 15px;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    z-index: 100;
    transition: transform 0.2s;
}

.sound-toggle:hover {
    transform: scale(1.1);
}

.sound-toggle img {
    width: 24px;
    height: 24px;
    position: absolute;
    opacity: 0;
    transition: opacity 0.2s;
    filter: invert(1) brightness(0.7);
}

.sound-toggle img.active {
    opacity: 1;
}

/* Footer */
.site-footer {
    position: fixed;
    bottom: 8px;
    left: 0;
    width: 100%;
    text-align: center;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.15);
    z-index: 100;
    letter-spacing: 0.5px;
}

.site-footer a {
    color: rgba(255, 255, 255, 0.15);
    text-decoration: none;
    transition: color 0.2s;
}

.site-footer a:hover {
    color: rgba(255, 255, 255, 0.4);
}

/* =================== */
/* Mobile              */
/* =================== */

@media (max-width: 768px) {
    .knocker {
        width: 70px;
        height: 95px;
    }

    .knocker-mount {
        width: 30px;
        height: 30px;
    }

    .knocker-hinge {
        top: 24px;
        width: 7px;
        height: 12px;
    }

    .knocker-ring {
        top: 28px;
        width: 44px;
        height: 50px;
        border-width: 6px;
    }

    .peephole {
        width: 24px;
        height: 24px;
    }

    .message {
        font-size: 3rem;
    }

    .sound-toggle {
        width: 36px;
        height: 36px;
        top: 10px;
        left: 10px;
    }

    .sound-toggle img {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 480px) {
    .knocker {
        width: 60px;
        height: 85px;
    }

    .knocker-mount {
        width: 26px;
        height: 26px;
    }

    .knocker-hinge {
        top: 20px;
        width: 6px;
        height: 10px;
    }

    .knocker-ring {
        top: 24px;
        width: 38px;
        height: 44px;
        border-width: 5px;
    }

    .peephole {
        width: 22px;
        height: 22px;
        top: 16%;
    }

    .message {
        font-size: 2.2rem;
    }

    .sound-toggle {
        width: 32px;
        height: 32px;
        top: 8px;
        left: 8px;
    }

    .sound-toggle img {
        width: 18px;
        height: 18px;
    }
}