html, body {
    margin: 0; width: 100%; height: 100%;
    overflow: hidden; background: #000;
}
body {
    display: flex; justify-content: center; align-items: center;
    height: 100vh; font-family: Arial, sans-serif;
    overflow: hidden; position: relative;
}

#book-bg-video {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    z-index: 2;
    opacity: 0;
    transition: opacity 1.5s ease;
    pointer-events: none;
}

#matrix-rain {
    position: fixed; top: 0; left: 0;
    width: 104%; height: 100%;
    z-index: 1; pointer-events: none;
}

#orientation-lock {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.96); display: none;
    flex-direction: column; justify-content: center; align-items: center;
    z-index: 99999; color: #fff; text-align: center; font-size: 18px;
    transition: background 0.6s cubic-bezier(0.4,0,0.2,1);
}
#orientation-lock .phone-icon {
    font-size: 64px; opacity: 0.92;
    animation: phone-bounce 2.2s cubic-bezier(0.4,0,0.2,1) infinite;
    filter: drop-shadow(0 4px 16px #fff3);
}
@keyframes phone-bounce {
    0%,100% { transform: rotate(-45deg) scale(1);    opacity: 0.8; }
    20%      { transform: rotate(-45deg) scale(1.05); opacity: 1;   }
    40%,60%  { transform: rotate(45deg)  scale(1.1);  opacity: 1;   }
    80%      { transform: rotate(-45deg) scale(1.05); opacity: 1;   }
}

.heart {
    position: fixed; z-index: 1000; pointer-events: none;
    color: #ff6b6b; font-size: 20px;
    animation: float-heart 4s ease-in-out forwards;
}
@keyframes float-heart {
    0%   { transform: translateY(0) scale(0); opacity: 0; }
    10%  { transform: translateY(-20px) scale(1); opacity: 1; }
    90%  { opacity: 1; }
    100% { transform: translateY(-700px) scale(0); opacity: 0; }
}

.stars-container {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 5; pointer-events: none; display: none;
}
.star { position: absolute; background: white; border-radius: 50%; animation: twinkle 2s infinite; }
.star.large  { width: 4px; height: 4px; box-shadow: 0 0 10px rgba(255,255,255,0.8); }
.star.medium { width: 3px; height: 3px; box-shadow: 0 0 6px  rgba(255,255,255,0.6); }
.star.small  { width: 2px; height: 2px; box-shadow: 0 0 4px  rgba(255,255,255,0.4); }
@keyframes twinkle {
    0%,100% { opacity: 0.3; transform: scale(1);   }
    50%      { opacity: 1;   transform: scale(1.2); }
}
.star:nth-child(2n) { animation-delay: 0.5s; }
.star:nth-child(3n) { animation-delay: 1s;   }
.star:nth-child(4n) { animation-delay: 1.5s; }
.star:nth-child(5n) { animation-delay: 0.8s; }
.star:nth-child(6n) { animation-delay: 1.2s; }

.book-container {
    perspective: 2500px;
    position: relative;
    z-index: 25;
    display: none; opacity: 0;
    transform: scale(0.85) translateY(40px);
    transition: opacity 1.2s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.book-container.show {
    display: block; opacity: 1;
    transform: scale(1) translateY(40px);
}
.book-container::before {
    content: '';
    position: absolute;
    top: -50px; left: -50px; right: -50px; bottom: -50px;
    background: radial-gradient(circle at 50% 50%, rgba(212, 175, 55, 0.28) 0%, rgba(255, 105, 180, 0.15) 35%, transparent 70%);
    z-index: -1;
    filter: blur(35px);
    animation: luxuryGlow 4s ease-in-out infinite alternate;
}
@keyframes luxuryGlow {
    0%   { opacity: 0.5; transform: scale(0.96); filter: blur(30px); }
    100% { opacity: 0.85; transform: scale(1.06); filter: blur(40px); }
}

.book {
    width: 640px; height: 460px;
    position: relative; transform-style: preserve-3d;
    transition: transform 1s cubic-bezier(0.25, 1, 0.5, 1);
    cursor: grab; user-select: none; display: none;
    transform: translateX(-25%); /* Center the closed cover by default */
}
.book.show { display: block; }
.book.opened { transform: translateX(0%) !important; } /* Center the open 2-page spread */
.book.finished { transform: translateX(25%) !important; } /* Center the closed back */

/* Elegant Book Hardcover Base (Visible on Open Spread) */
.book-base {
    position: absolute;
    top: -6px; left: -6px; right: -6px; bottom: -6px;
    background: linear-gradient(135deg, #1b120c 0%, #29170e 45%, #140c07 100%);
    border-radius: 12px;
    border: 1.5px solid rgba(212, 175, 55, 0.45);
    box-shadow:
        0 25px 60px rgba(0, 0, 0, 0.85),
        0 8px 20px rgba(0, 0, 0, 0.5),
        inset 0 0 25px rgba(0, 0, 0, 0.9);
    z-index: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}
.book.opened .book-base {
    opacity: 1;
}

/* Subtle Realistic Book Spine Crease */
.book::before {
    content: '';
    position: absolute;
    left: calc(50% - 5px);
    top: -3px;
    bottom: -3px;
    width: 10px;
    background: linear-gradient(
        90deg,
        rgba(10, 5, 2, 0.75) 0%,
        rgba(45, 25, 15, 0.4) 30%,
        rgba(212, 175, 55, 0.5) 50%,
        rgba(45, 25, 15, 0.4) 70%,
        rgba(10, 5, 2, 0.75) 100%
    );
    border-radius: 4px;
    box-shadow:
        0 0 12px rgba(0, 0, 0, 0.75),
        inset 0 0 4px rgba(0, 0, 0, 0.8);
    z-index: 50;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}
.book.opened::before {
    opacity: 1;
}

.page {
    width: 320px; height: 460px;
    position: absolute; top: 0; right: 0;
    transform-origin: left center;
    transform-style: preserve-3d;
    transition: transform 1s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 1s cubic-bezier(0.25, 1, 0.5, 1);
    box-shadow:
        0 14px 32px rgba(0,0,0,0.45),
        0 3px 10px rgba(0,0,0,0.25);
    cursor: pointer;
    touch-action: pan-x;
    z-index: var(--page-z-index, 1);
    border-radius: 0 8px 8px 0;
    will-change: transform;
}
.page.flipped {
    transform: rotateY(-180deg);
    box-shadow:
        -14px 14px 32px rgba(0,0,0,0.45),
        -3px 3px 10px rgba(0,0,0,0.25);
    z-index: var(--page-flipped-z-index, 1);
    border-radius: 8px 0 0 8px;
}

.page-front,
.page-back {
    position: absolute; width: 100%; height: 100%;
    backface-visibility: hidden; overflow: hidden;
    background: #fbf9f5;
    border-radius: 0 10px 10px 0;
    border: 1px solid rgba(212, 175, 55, 0.35);
}
.page-front {
    background: #fbf9f5;
    z-index: 2;
}
.page-back {
    background: #fbf9f5;
    transform: rotateY(180deg);
    border-radius: 10px 0 0 10px;
}

/* Luxury Hardcover Front Trim (First Page) */
.page[data-page="0"] .page-front {
    border: 3px solid #d4af37;
    box-shadow:
        0 0 0 1px #fff5cc,
        inset 0 0 25px rgba(0,0,0,0.5);
}

.page-front img,
.page-back img {
    width: 100%; height: 100%;
    object-fit: cover; display: block;
    border-radius: inherit; position: relative; z-index: 1;
}

/* Deep Realistic Crease & Paper Shadow Gradients */
.page-front::before {
    content: ''; position: absolute;
    top: 0; left: 0; bottom: 0; width: 50px;
    background: linear-gradient(90deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.15) 30%, transparent 100%);
    z-index: 10; pointer-events: none;
}
.page-back::before {
    content: ''; position: absolute;
    top: 0; right: 0; bottom: 0; width: 50px;
    background: linear-gradient(270deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.15) 30%, transparent 100%);
    z-index: 10; pointer-events: none;
}

/* Elegant Page Edge Trim */
.page-front::after {
    content: ''; position: absolute;
    top: 8px; left: 8px; right: 8px; bottom: 8px;
    border: 1px solid rgba(212, 175, 55, 0.25);
    border-radius: inherit;
    pointer-events: none;
    z-index: 5;
}
.page-back::after {
    content: ''; position: absolute;
    top: 8px; left: 8px; right: 8px; bottom: 8px;
    border: 1px solid rgba(212, 175, 55, 0.25);
    border-radius: inherit;
    pointer-events: none;
    z-index: 5;
}

.empty-page {
    background: #f9f9f9;
    display: flex; align-items: center; justify-content: center;
    color: #ccc; font-size: 14px; font-style: italic;
}

.content-display {
    position: fixed;
    top: 2%; left: 50%; transform: translateX(-50%);
    width: 85vw; max-width: 650px;
    min-height: 160px; max-height: 230px;
    background: linear-gradient(145deg, #ffffff 0%, #fefefe 100%);
    border-radius: 20px;
    padding: 40px 35px;
    box-shadow:
        0 20px 60px rgba(255,105,180,0.15),
        0 10px 30px rgba(0,0,0,0.08),
        inset 0 1px 0 rgba(255,255,255,0.9);
    backdrop-filter: blur(20px);
    opacity: 0; display: none; pointer-events: none;
    overflow-y: auto; box-sizing: border-box;
    transition: all 0.5s ease; z-index: 30;
}
.content-display::after {
    content: '💕';
    position: absolute; top: 15px; right: 20px;
    font-size: 24px; opacity: 0.6;
    animation: heartbeat 2s ease-in-out infinite;
}
.content-display.show {
    display: block; opacity: 1 !important; pointer-events: auto;
    background: rgba(255,255,255,0.98) !important;
}
.content-display p {
    margin: 0; padding: 0;
    color: #2c1810;
    font-size: clamp(18px, 3vw, 24px);
    line-height: 2.2; text-align: center;
    font-family: 'Dancing Script', 'Brush Script MT', cursive;
    font-weight: 400;
    background: linear-gradient(45deg, #8b4513, #a0522d, #8b4513, #6b3410);
    background-size: 400% 400%;
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: romanticText 8s ease-in-out infinite;
    letter-spacing: 0.5px; -webkit-font-smoothing: antialiased;
}
@keyframes heartbeat {
    0%,100% { transform: scale(1);   opacity: 0.6; }
    50%      { transform: scale(1.2); opacity: 0.9; }
}
@keyframes romanticText {
    0%,100% { background-position: 0%    50%; }
    50%      { background-position: 100% 50%; }
}

.typewriter-text { display: inline; }
.typewriter-cursor {
    display: inline-block; width: 2px; background: #333;
    margin-left: 2px; height: 1.2em;
    animation: blink 1s infinite;
}
@keyframes blink { 0%,50% { opacity: 1; } 51%,100% { opacity: 0; } }

.firework-container {
    position: fixed; top: 50%; left: 50%;
    width: 200px; height: 200px; pointer-events: none;
    z-index: 10001; transform: translate(-50%,-50%);
}
.firework {
    position: absolute; top: 50%; left: 50%;
    width: 4px; height: 4px; border-radius: 50%;
    animation: firework-explode 1s ease-out forwards;
}
@keyframes firework-explode {
    0%   { transform: translate(0,0) scale(1); opacity: 1; }
    100% { opacity: 0; }
}
@keyframes giftCelebration {
    0%   { transform: translate(-50%,-50%) scale(0.5); opacity: 0; }
    50%  { transform: translate(-50%,-50%) scale(1.1); opacity: 1; }
    100% { transform: translate(-50%,-50%) scale(1);   opacity: 1; }
}

.photo {
    position: fixed;
    width: 120px; height: 120px;
    border-radius: 20px; object-fit: cover;
    box-shadow: 0 0 20px rgba(255,105,180,0.8);
    opacity: 0; pointer-events: none;
    border: 5px solid white; background: white;
    z-index: 300;
    transition: transform 3s ease, opacity 3s ease;
    transform: translate(-50%,-50%);
}

.music-control {
    display: none !important;
}
.music-control.playing { animation: musicPulse 1.5s infinite; }
@keyframes musicPulse {
    0%,100% { transform: scale(1);    box-shadow: 0 4px 15px rgba(255,107,157,0.4); }
    50%      { transform: scale(1.05); box-shadow: 0 8px 25px rgba(255,107,157,0.8); }
}

.confetti {
    position: fixed; width: 10px; height: 10px;
    border-radius: 2px; pointer-events: none; z-index: 10005;
    animation: confetti-fly 1s ease-out forwards;
}
@keyframes confetti-fly {
    0%   { transform: translate(0,0) rotate(0deg) scale(1); opacity: 1; }
    100% { transform: translate(var(--x,100px), var(--y,-200px)) rotate(720deg) scale(0); opacity: 0; }
}

@media screen and (max-height: 500px) and (orientation: landscape) {
    .book-container.show { transform: scale(1) translateY(10px); }
    .book  { width: 300px; height: 200px; transform: scale(0.7); margin-top: 0; }
    .page  { width: 150px; height: 200px; }
    .content-display {
        width: 45vw; min-height: 50px; max-height: 80px;
        padding: 5px 8px; top: 10px;
    }
    .content-display::after { top: 5px; right: 5px; font-size: 20px; }
    .content-display p { font-size: 13px !important; }
    .photo              { width: 60px; height: 60px; }
    .firework-container { width: 100px; height: 100px; }
    .music-control { width: 35px; height: 35px; font-size: 18px; top: 10px; right: 10px; }
}
/* Luxury Ending Birthday Card */
.birthday-card-face {
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 35%, #251329 0%, #14081c 65%, #0a030f 100%);
    border: 2px solid rgba(212, 175, 55, 0.65);
    border-radius: inherit;
    box-sizing: border-box;
    padding: 35px 25px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow:
        inset 0 0 35px rgba(0, 0, 0, 0.85),
        inset 0 0 15px rgba(212, 175, 55, 0.25);
}
.birthday-card-face::before {
    content: '';
    position: absolute;
    top: 10px; left: 10px; right: 10px; bottom: 10px;
    border: 1px solid rgba(212, 175, 55, 0.35);
    border-radius: inherit;
    pointer-events: none;
}
.card-stars {
    font-size: 22px;
    letter-spacing: 5px;
    margin-bottom: 10px;
    animation: luxuryGlow 3s ease-in-out infinite alternate;
}
.card-title {
    font-family: 'Pacifico', cursive;
    font-size: 26px;
    font-weight: 400;
    color: #fce4a6;
    margin: 0 0 10px 0;
    text-shadow: 0 2px 12px rgba(212, 175, 55, 0.6);
}
.card-divider {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #d4af37, transparent);
    margin-bottom: 16px;
}
.card-message {
    font-family: 'Dancing Script', cursive;
    font-size: 19px;
    line-height: 1.65;
    color: #fbf5ea;
    margin: 0 0 18px 0;
    text-shadow: 0 1px 6px rgba(0,0,0,0.8);
    font-weight: 500;
}
.card-sign {
    font-family: 'Dancing Script', cursive;
    font-size: 22px;
    font-weight: 700;
    color: #ff94ab;
    text-shadow: 0 2px 10px rgba(255, 105, 180, 0.5);
}

/* Luxury Hardcover Back */
.book-backcover-face {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1b120c 0%, #2e1a10 50%, #160e0a 100%);
    border: 3px solid #d4af37;
    border-radius: inherit;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow:
        0 0 0 1px #fff5cc,
        inset 0 0 35px rgba(0,0,0,0.85);
}
.backcover-ornament {
    font-size: 20px;
    color: #d4af37;
    letter-spacing: 6px;
    margin-bottom: 12px;
}
.backcover-title {
    font-family: 'Pacifico', cursive;
    font-size: 28px;
    color: #f7d57f;
    text-shadow: 0 2px 12px rgba(212,175,55,0.6);
    margin-bottom: 6px;
}
.backcover-sub {
    font-family: 'Dancing Script', cursive;
    font-size: 20px;
    color: #ff94ab;
    font-weight: 600;
    margin-bottom: 8px;
}
.backcover-name {
    font-family: 'Dancing Script', cursive;
    font-size: 24px;
    font-weight: 700;
    color: #ff69b4;
    text-shadow: 0 0 16px rgba(255, 105, 180, 0.75), 0 2px 6px rgba(0, 0, 0, 0.6);
    letter-spacing: 0.5px;
    animation: backcoverPulse 2.4s ease-in-out infinite alternate;
}
@keyframes backcoverPulse {
    0% {
        transform: scale(1);
        text-shadow: 0 0 12px rgba(255, 105, 180, 0.6);
    }
    100% {
        transform: scale(1.05);
        text-shadow: 0 0 22px rgba(255, 105, 180, 0.95), 0 0 35px rgba(255, 182, 193, 0.5);
    }
}

/* ── Big Screen / Fullscreen Button ─────────────────────────────── */
#fullscreenBtn {
    position: fixed;
    bottom: 22px;
    right: 22px;
    z-index: 990010;
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 10px 16px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-family: 'Dancing Script', Arial, sans-serif;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, rgba(255,105,180,0.75) 0%, rgba(120,0,80,0.85) 100%);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow:
        0 4px 20px rgba(255,105,180,0.45),
        0 1px 0 rgba(255,255,255,0.15) inset;
    border: 1px solid rgba(255,255,255,0.18);
    transition: transform 0.25s cubic-bezier(0.34,1.56,0.64,1),
                box-shadow 0.25s ease,
                background 0.25s ease;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}
#fullscreenBtn:hover {
    transform: scale(1.07) translateY(-2px);
    box-shadow:
        0 8px 32px rgba(255,105,180,0.6),
        0 1px 0 rgba(255,255,255,0.2) inset;
}
#fullscreenBtn:active {
    transform: scale(0.96);
}
#fullscreenBtn .fs-icon {
    font-size: 20px;
    line-height: 1;
    transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
    display: inline-block;
}
#fullscreenBtn:hover .fs-icon {
    transform: scale(1.25) rotate(8deg);
}
#fullscreenBtn .fs-label {
    white-space: nowrap;
    font-size: 13px;
    letter-spacing: 0.4px;
    opacity: 0.95;
}

/* Fullscreen active state */
body.is-fullscreen #fullscreenBtn,
body.is-fullscreen-quiet #fullscreenBtn {
    background: linear-gradient(135deg, rgba(100,200,120,0.7) 0%, rgba(20,100,60,0.85) 100%);
    box-shadow:
        0 4px 20px rgba(80,200,120,0.45),
        0 1px 0 rgba(255,255,255,0.15) inset;
}

/* Exit fullscreen hint toast */
#fsExitHint {
    position: fixed;
    top: 18px;
    left: 50%;
    transform: translateX(-50%) translateY(-80px);
    z-index: 990020;
    background: rgba(0,0,0,0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #fff;
    font-size: 13px;
    font-family: Arial, sans-serif;
    padding: 8px 18px;
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.18);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
    white-space: nowrap;
}
#fsExitHint kbd {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 12px;
}
#fsExitHint span {
    font-size: 15px;
    vertical-align: middle;
}
body.is-fullscreen #fsExitHint {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}


/* ── Fullscreen Prompt Overlay ───────────────────────────────────── */
#fs-prompt-overlay {
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
#fs-prompt-overlay.active {
    display: flex;
    animation: fsOverlayIn 0.35s ease both;
}
@keyframes fsOverlayIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
#fs-prompt-card {
    background: linear-gradient(145deg, rgba(30,10,25,0.95) 0%, rgba(10,5,20,0.98) 100%);
    border: 1px solid rgba(255, 105, 180, 0.35);
    border-radius: 24px;
    padding: 40px 32px 32px;
    max-width: 320px;
    width: 88vw;
    text-align: center;
    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.7),
        0 0 0 1px rgba(255,255,255,0.06) inset,
        0 0 60px rgba(255,105,180,0.12);
    animation: fsCardIn 0.45s cubic-bezier(0.34,1.56,0.64,1) both;
}
@keyframes fsCardIn {
    from { opacity: 0; transform: scale(0.82) translateY(30px); }
    to   { opacity: 1; transform: scale(1)    translateY(0);    }
}
.fs-prompt-icon {
    font-size: 48px;
    line-height: 1;
    margin-bottom: 14px;
    animation: fsIconPulse 2s ease-in-out infinite;
    display: block;
    filter: drop-shadow(0 0 12px rgba(255,105,180,0.6));
}
@keyframes fsIconPulse {
    0%,100% { transform: scale(1);    opacity: 0.9; }
    50%      { transform: scale(1.12); opacity: 1;   }
}
.fs-prompt-title {
    font-family: 'Pacifico', cursive;
    font-size: 22px;
    font-weight: 400;
    color: #fce4a6;
    margin: 0 0 10px;
    text-shadow: 0 2px 12px rgba(212,175,55,0.5);
}
.fs-prompt-body {
    font-family: 'Dancing Script', cursive;
    font-size: 18px;
    color: rgba(255,255,255,0.78);
    line-height: 1.6;
    margin: 0 0 28px;
}
.fs-prompt-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
#fsPromptYes {
    padding: 14px 20px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-family: 'Dancing Script', cursive;
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #ff69b4 0%, #a0005a 100%);
    box-shadow:
        0 6px 24px rgba(255,105,180,0.55),
        0 1px 0 rgba(255,255,255,0.18) inset;
    transition: transform 0.22s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.22s ease;
    -webkit-tap-highlight-color: transparent;
}
#fsPromptYes:active {
    transform: scale(0.96);
}
#fsPromptNo {
    padding: 10px 20px;
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 50px;
    cursor: pointer;
    font-family: Arial, sans-serif;
    font-size: 13px;
    color: rgba(255,255,255,0.52);
    background: transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}