.shm-wa-fab { position: fixed; z-index: 999; right: 24px; bottom: 24px; display: grid; width: 64px; height: 64px; place-items: center; border: 1px solid rgba(255, 255, 255, .5); border-radius: 50%; padding: 0; color: #fff; background: linear-gradient(145deg, #2cda71, #1fbd5c); box-shadow: 0 16px 38px rgba(16, 99, 49, .28), 0 4px 12px rgba(0, 0, 0, .18); font: inherit; cursor: pointer; isolation: isolate; transition: transform .2s ease, box-shadow .2s ease, filter .2s ease; }
.shm-wa-fab svg { position: relative; z-index: 2; width: 2rem; height: 2rem; color: #fff; }
.shm-wa-fab-pulse { position: absolute; z-index: -1; inset: -.42rem; border: 1px solid rgba(37, 211, 102, .52); border-radius: inherit; pointer-events: none; animation: shm-wa-pulse 2.8s ease-out infinite; }
.shm-wa-fab-tooltip { position: absolute; right: calc(100% + .85rem); width: max-content; max-width: 15rem; border: 1px solid rgba(255, 255, 255, .12); border-radius: 999px; padding: .72rem 1rem; color: #fff; background: #15161a; box-shadow: 0 12px 30px rgba(0, 0, 0, .22); font-size: .94rem; font-weight: 760; line-height: 1; opacity: 0; pointer-events: none; transform: translateX(.4rem); transition: opacity .2s ease, transform .2s ease; }
.shm-wa-fab:hover, .shm-wa-fab:focus-visible { transform: translateY(-3px) scale(1.03); color: #fff; filter: saturate(1.06); box-shadow: 0 20px 44px rgba(16, 99, 49, .34), 0 5px 14px rgba(0, 0, 0, .2); }
.shm-wa-fab:hover .shm-wa-fab-tooltip, .shm-wa-fab:focus-visible .shm-wa-fab-tooltip { opacity: 1; transform: translateX(0); }
.shm-wa-fab:focus-visible { outline: 3px solid rgba(37, 211, 102, .32); outline-offset: 4px; }
@keyframes shm-wa-pulse { 0%, 42% { opacity: .52; transform: scale(.88); } 75%, 100% { opacity: 0; transform: scale(1.18); } }
.shm-wa-gate { width: min(820px, calc(100vw - 2rem)); max-height: min(92vh, 860px); margin: auto; padding: 0; border: 0; border-radius: 28px; color: #141519; background: #fffdfa; box-shadow: 0 28px 90px rgba(0, 0, 0, .35); }
.shm-wa-gate::backdrop { background: rgba(12, 13, 16, .68); backdrop-filter: blur(5px); }
.shm-wa-gate-shell { position: relative; padding: clamp(1.9rem, 4vw, 2.8rem); }
.shm-wa-gate-close { position: absolute; top: 1rem; right: 1rem; display: grid; width: 2.25rem; height: 2.25rem; place-items: center; border: 1px solid #dedad4; border-radius: 50%; color: #16171b; background: transparent; font-size: 1.5rem; cursor: pointer; }
.shm-wa-gate-kicker { margin: 0 0 .75rem; color: #fa176d; font-size: .82rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.shm-wa-gate h2 { max-width: 23ch; margin: 0; color: #111216; font-size: clamp(2.2rem, 4vw, 2.9rem); line-height: 1.02; letter-spacing: -.045em; }
.shm-wa-gate-copy { max-width: 60ch; margin: 1.05rem 0 1.8rem; color: #646873; font-size: 1.12rem; line-height: 1.5; }
.shm-wa-gate-form label { display: grid; gap: .52rem; color: #33363d; font-size: .94rem; font-weight: 700; }
.shm-wa-gate-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.shm-wa-gate input, .shm-wa-gate textarea { width: 100%; border: 1px solid #dedad4; border-radius: 12px; padding: .95rem 1rem; color: #17181c; background: #fff; font: inherit; font-size: 1.04rem; }
.shm-wa-gate input:focus, .shm-wa-gate textarea:focus { outline: 2px solid rgba(250, 23, 109, .28); border-color: #fa176d; }
.shm-wa-gate input[readonly] { color: #636873; background: #f5f2ed; }
.shm-wa-gate-message { margin-top: 1rem; }
.shm-wa-gate-message textarea { resize: vertical; min-height: 5.6rem; }
.shm-wa-gate-actions { display: flex; align-items: center; gap: 1rem; margin-top: 1.45rem; }
.shm-wa-gate-submit { border: 0; cursor: pointer; }
.shm-wa-gate-submit[disabled] { opacity: .65; cursor: wait; }
.shm-wa-gate-status { margin: 0; color: #b01852; font-size: .95rem; line-height: 1.35; }
@media (prefers-reduced-motion: reduce) { .shm-wa-fab-pulse { animation: none; } }
@media (max-width: 560px) { .shm-wa-fab { right: 16px; bottom: 16px; width: 58px; height: 58px; } .shm-wa-fab svg { width: 1.82rem; height: 1.82rem; } .shm-wa-fab-tooltip { display: none; } .shm-wa-gate { width: calc(100vw - 1rem); max-height: 94vh; } .shm-wa-gate-shell { padding: 1.55rem 1.2rem; } .shm-wa-gate h2 { font-size: 2.05rem; } .shm-wa-gate-copy { font-size: 1.03rem; } .shm-wa-gate-form label { font-size: .9rem; } .shm-wa-gate input, .shm-wa-gate textarea { font-size: 1rem; } .shm-wa-gate-grid { grid-template-columns: 1fr; } .shm-wa-gate-actions { align-items: flex-start; flex-direction: column; } }