:root {
    /* Soft, eye‑friendly palette */
    --bg-1: #f6f7ff;
    --bg-2: #e9fbff;
    --bg-3: #fff4e8;
    --text: #0f172a;
    /* slate‑900 */
    --muted: #475569;
    /* slate‑600 */
    --accent: #7c3aed;
    /* violet */
    --accent-2: #06b6d4;
    /* cyan */
    --ok: #22c55e;
    /* green */
    --warn: #f59e0b;
    /* amber */
    --danger: #ef4444;
    /* red */
    --card: #ffffffcc;
}

/* Reset & base */
* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font: 16px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    color: var(--text);
    overflow: hidden;
    background: linear-gradient(120deg, var(--bg-1), var(--bg-2) 50%, var(--bg-3));
}

/* Animated ambient background blobs (gentle) */
.ambient {
    position: fixed;
    inset: -10vmax;
    z-index: 0;
    pointer-events: none;
    filter: blur(50px) saturate(120%);
    background:
        radial-gradient(30vmax 30vmax at 10% 20%, #c7d2fe 0%, transparent 60%),
        radial-gradient(30vmax 30vmax at 85% 30%, #a7f3d0 0%, transparent 60%),
        radial-gradient(35vmax 35vmax at 40% 85%, #fde68a 0%, transparent 60%),
        radial-gradient(30vmax 30vmax at 70% 80%, #f5d0fe 0%, transparent 60%);
    animation: floaty 36s ease-in-out infinite alternate;
}

@keyframes floaty {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }

    50% {
        transform: translate3d(-3vmax, 2vmax, 0) scale(1.03);
    }

    100% {
        transform: translate3d(3vmax, -2vmax, 0) scale(0.98);
    }
}

/* Layout */
main {
    position: relative;
    z-index: 1;
    min-height: 100%;
    display: grid;
    place-items: center;
    padding: 6vmin 4vmin;
}

.card {
    width: min(900px, 92vw);
    background-color: rgba(255, 255, 255, 0.4);
    /* background: var(--card); */
    backdrop-filter: blur(5px);
    border-radius: 22px;
    box-shadow: 0 10px 30px #0000001a;
    padding: clamp(20px, 4vmin, 40px);
    border: 1px solid #ffffff88;
}

/* Fun caution tape (animated stripes) */
.tape {
    position: relative;
    overflow: hidden;
    height: 18px;
    border-radius: 999px;
    margin: 8px 0 24px;
    background: repeating-linear-gradient(45deg, var(--warn) 0 14px, #111 14px 28px);
    background-size: 28px 28px;
    animation: slide 1.2s linear infinite;
}

@keyframes slide {
    from {
        background-position: 0 0;
    }

    to {
        background-position: 28px 0;
    }
}

/* Headline with per‑letter bounce */
h1 {
    margin: 0 0 12px;
    font-weight: 800;
    font-size: clamp(28px, 6vw, 56px);
    letter-spacing: 0.02em;
    display: inline-block;
    white-space: nowrap;
}

.headline {
    width: 100%;
    text-align: center;
}


.headline .char {
    display: inline-block;
    transform-origin: 50% 80%;
}

.headline .char.bounce {
    animation: bop 1.2s ease-in-out infinite;
    animation-delay: calc(var(--i) * 70ms);
}

@keyframes bop {
    0% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-6%) rotate(-2deg);
    }

    100% {
        transform: translateY(0) rotate(0deg);
    }
}

.sub {
    font-size: clamp(14px, 2.6vw, 18px);
    color: white;
    /* color: var(--muted); */
    margin: 8px 0 18px;
    text-align: center;
}

/* Progress bar (indeterminate) */
.progress {
    position: relative;
    height: 10px;
    background: #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
}

.bar {
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    width: 40%;
    border-radius: 10px;
    animation: load 2.2s cubic-bezier(.4, 0, .2, 1) infinite;
}

@keyframes load {
    0% {
        transform: translateX(-110%);
    }

    50% {
        transform: translateX(60%);
    }

    100% {
        transform: translateX(120%);
    }
}

/* Spinning wrench emoji */
.wrench {
    display: inline-block;
    font-size: 1.25em;
    margin-left: .25em;
    animation: spin 2.5s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(1turn);
    }
}

/* Button */
.row {
    /* display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: flex-start; */
    text-align: center;
    margin-top: 18px;
}

.btn {
    width: 150px;
    appearance: none;
    border: 0;
    cursor: pointer;
    padding: 10px 16px;
    border-radius: 12px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    color: white;
    box-shadow: 0 6px 16px #00000022;
    transition: transform .08s ease, box-shadow .2s ease, filter .2s ease;
}

.btn:active {
    transform: translateY(1px);
    filter: saturate(110%);
    box-shadow: 0 4px 10px #0000002a;
}

/* Mini log */
.log {
    margin-top: 16px;
    padding: 12px 14px;
    border-radius: 12px;
    background: #ffffffb8;
    border: 1px dashed #cbd5e1;
    color: var(--muted);
    font-size: 14px;
    max-height: 30vh;
    overflow: auto;
}

.log p {
    margin: 0.2rem 0;
}

/* Footer */
footer {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 10px;
    z-index: 1;
    text-align: center;
    color: #334155;
    font-size: 13px;
}

/* Accessibility: calm mode */
.calm .ambient,
.calm .wrench,
.calm .headline .char,
.calm .bar,
.calm .tape {
    animation: none !important;
}

.calm .wrench {
    transform: none;
}

@media (prefers-reduced-motion: reduce) {

    .ambient,
    .wrench,
    .headline .char,
    .bar,
    .tape {
        animation: none !important;
    }
}

.f_container p {
    line-height: 18px;
    padding: 0;
    margin: 0;
}

.yt_bg {
    position: absolute;
    display: block;
    top: 0px;
    left: 50%;
    transform: translate(-50%, 0px);
    width: 1920px;
    min-width: 1920px;
    max-width: 1920px;
    height: 624px;
    overflow-x: visible;
    overflow-y: hidden !important;
    padding: 0;
    margin: 0;
    clip: rect(0px, 1920px, 624px, 0px) !important;
}

.video_screen_texture {
    position: absolute;
    top: 0px;
    left: 50%;
    transform: translate(-50%, 0px);
    width: 1920px;
    min-width: 1920px;
    max-width: 1920px;
    height: 100%;
    overflow-x: hidden;
    overflow-y: hidden;
    padding: 0;
    margin: 0;
    background-color: rgba(43, 147, 135, 0.1);
    background-image: radial-gradient(rgba(38, 133, 122, 0.7) 1px, rgba(43, 147, 135, 0.2) 0);
    background-size: 3px 3px;
    background-position: -2px -2px;
    box-shadow: inset 0 -20px 20px -20px rgb(2, 17, 15), inset 0 -30px 30px -30px rgba(0, 42, 37, 0.8);
}