:root {
    --bg: #fff7fb;
    --bg-grad-1: #ffe9f6;
    --bg-grad-2: #fff7fb;
    --pink: #ff7eb8;
    --hot-pink: #ff4fa3;
    --peach: #ffb3c7;
    --mint: #b7f5e3;
    --sky: #bfe6ff;
    --lav: #d9c7ff;
    --lemon: #fff2a8;
    --ink: #593a4e;
    --card: #ffffffee;
    --shadow: 0 20px 60px rgba(255, 126, 184, .23), 0 10px 25px rgba(89,58,78,.08);
}

* {
    box-sizing: border-box
}

html, body {
    height: 100%
}

body {
    margin: 0;
    background: radial-gradient(circle at 10% 10%, var(--bg-grad-1) 0 25%, transparent 26%), radial-gradient(circle at 90% 15%, #fff2fe 0 22%, transparent 23%), radial-gradient(circle at 20% 85%, #fff2fb 0 18%, transparent 19%), linear-gradient(180deg, var(--bg-grad-1), var(--bg-grad-2));
    font-family: "Zen Maru Gothic", system-ui, -apple-system, Segoe UI, Roboto, "M PLUS Rounded 1c", sans-serif;
    color: var(--ink);
    overflow: hidden;
}

/* ===== decorations ===== */
.decorations {
    position: fixed;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.sparkle {
    position: absolute;
    width: 12px;
    height: 12px;
    filter: drop-shadow(0 2px 2px rgba(0,0,0,.05));
    animation: float 12s linear infinite;
    opacity: .9
}

    .sparkle:before, .sparkle:after {
        content: "";
        position: absolute;
        inset: 0;
        background: conic-gradient(from 0deg, var(--mint), var(--sky), var(--lav), var(--peach), var(--mint));
        -webkit-mask: radial-gradient(circle at 50% 50%, #000 62%, transparent 63%);
        mask: radial-gradient(circle at 50% 50%, #000 62%, transparent 63%);
        border-radius: 50%
    }

    .sparkle:after {
        transform: rotate(45deg) scale(.8);
        filter: blur(.5px);
        opacity: .7
    }

.heart {
    position: absolute;
    width: 18px;
    height: 18px;
    background: var(--pink);
    transform: rotate(-45deg);
    border-radius: 4px 0 0 4px;
    animation: bob 7s ease-in-out infinite;
    box-shadow: 0 6px 14px rgba(255,79,163,.2)
}

    .heart:before, .heart:after {
        content: "";
        position: absolute;
        width: 18px;
        height: 18px;
        background: var(--pink);
        border-radius: 50%
    }

    .heart:before {
        top: -9px;
        left: 0
    }

    .heart:after {
        left: 9px;
        top: 0
    }

.ribbon {
    position: absolute;
    width: 180px;
    height: 36px;
    background: linear-gradient(90deg, #ffd1ea, #ffe7f5);
    border-radius: 999px;
    box-shadow: 0 8px 24px rgba(255,126,184,.25);
    transform: rotate(-6deg);
    opacity: .9;
    animation: drift 20s linear infinite
}

    .ribbon:before, .ribbon:after {
        content: "";
        position: absolute;
        width: 26px;
        height: 26px;
        background: linear-gradient(135deg, #ffd1ea,#ffffff);
        border-radius: 0 100% 100% 100%;
        bottom: -12px;
        filter: drop-shadow(0 6px 10px rgba(255,126,184,.25))
    }

    .ribbon:before {
        left: -10px;
        transform: rotate(40deg)
    }

    .ribbon:after {
        right: -10px;
        transform: scaleX(-1) rotate(40deg)
    }

.cloud {
    position: absolute;
    width: 130px;
    height: 38px;
    background: #fff;
    border-radius: 999px;
    filter: drop-shadow(0 12px 24px rgba(146, 139, 178, .15));
    animation: cloud 36s linear infinite
}

    .cloud:before, .cloud:after {
        content: "";
        position: absolute;
        background: #fff;
        border-radius: 50%
    }

    .cloud:before {
        width: 50px;
        height: 50px;
        left: 18px;
        top: -25px
    }

    .cloud:after {
        width: 70px;
        height: 70px;
        left: 55px;
        top: -35px
    }

.sticker {
    position: absolute;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--lemon), #fff);
    border: 3px solid #fff;
    box-shadow: 0 10px 20px rgba(0,0,0,.06);
    transform: rotate(6deg);
    animation: wiggle 4s ease-in-out infinite
}

    .sticker svg {
        width: 100%;
        height: 100%;
        padding: 6px
    }

/* ===== layout ===== */
.wrap {
    position: relative;
    height: 100%;
    display: grid;
    place-items: center;
    padding: 24px
}

.card {
    position: relative;
    width: min(92vw, 520px);
    background: var(--card);
    border: 2px solid #fff;
    backdrop-filter: blur(8px);
    border-radius: 36px;
    box-shadow: var(--shadow);
    padding: 28px 28px 36px;
    animation: pop .6s ease both;
}

/* header */
.header {
    text-align: left;
    margin-bottom: 8px
}

.title {
    font-size: 28px;
    font-weight: 900;
    font-family: Nunito, system-ui, sans-serif;
    letter-spacing: .5px;
    margin: 6px 0 6px
}

.subtitle {
    font-size: 14px;
    opacity: .8;
    margin: 0 0 18px
}

/* form */
form {
    display: grid;
    gap: 14px
}

.field {
    display: grid;
    gap: 6px
}

.label {
    font-size: 13px;
    opacity: .85
}

.input {
    width: 100%;
    padding: 14px 16px;
    border-radius: 16px;
    border: 2px solid #ffe4f1;
    outline: none;
    background: #fff;
    font-size: 15px;
    color: var(--ink);
    box-shadow: inset 0 -2px 6px rgba(255,126,184,.06);
}

    .input:focus {
        border-color: var(--pink);
        box-shadow: 0 0 0 6px rgba(255,126,184,.12)
    }

.btn {
    display: inline-block;
    text-align: center;
    padding: 14px 18px;
    border-radius: 16px;
    border: 0;
    cursor: pointer;
    font-weight: 900;
    letter-spacing: .3px;
    background: linear-gradient(180deg, var(--pink), var(--hot-pink));
    color: white;
    box-shadow: 0 12px 24px rgba(255,79,163,.28);
    transition: transform .08s ease;
    width: 100%;
}

    .btn:hover {
        transform: translateY(-1px)
    }

    .btn:active {
        transform: translateY(1px)
    }

.tiny {
    font-size: 12px;
    opacity: .7;
    margin-top: 14px;
    text-align: center
}

/* badge */
.badge {
    position: absolute;
    right: -10px;
    top: -10px;
    background: conic-gradient(from 0deg, #fff 0 10%, var(--lemon) 10% 35%, #fff 35% 45%, #ffd9ec 45% 70%, #fff 70% 80%, var(--mint) 80% 100%);
    width: 90px;
    height: 90px;
    border-radius: 50%;
    border: 6px solid #fff;
    display: grid;
    place-items: center;
    transform: rotate(8deg);
    box-shadow: 0 12px 22px rgba(0,0,0,.07);
    animation: glow 3s ease-in-out infinite
}

    .badge span {
        font-family: Nunito, system-ui, sans-serif;
        font-weight: 900;
        font-size: 14px;
        text-align: center;
        transform: rotate(-8deg);
    }

/* animations */
@keyframes float {
    0% {
        transform: translateY(0)
    }

    100% {
        transform: translateY(-130vh) rotate(360deg)
    }
}

@keyframes bob {
    0%,100% {
        transform: translateY(0) rotate(-45deg)
    }

    50% {
        transform: translateY(-10px) rotate(-45deg)
    }
}

@keyframes drift {
    0% {
        transform: translateX(0) rotate(-6deg)
    }

    100% {
        transform: translateX(140vw) rotate(-6deg)
    }
}

@keyframes cloud {
    0% {
        transform: translateX(-20vw)
    }

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

@keyframes glow {
    0%,100% {
        box-shadow: 0 0 0 rgba(255,126,184,0)
    }

    50% {
        box-shadow: 0 0 0 12px rgba(255,126,184,.1)
    }
}

@keyframes pop {
    0% {
        transform: scale(.92)
    }

    100% {
        transform: scale(1)
    }
}

/* responsive */
@media (max-width:520px) {
    .badge {
        transform: scale(.8) rotate(8deg);
        right: -18px;
        top: -18px
    }

    .title {
        font-size: 24px
    }
}