/* style.css */
:root {
    --primary-color: #ec4899;
    --bg-gradient: linear-gradient(0deg, #fce7f3 0%, #ffffff 100%);
    --item-text-color: #9d174d;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 0.3s ease;
    position: relative;
    overflow: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(circle, rgba(255,255,255,0.85) 0 2px, transparent 3px),
        radial-gradient(circle, rgba(255,255,255,0.6) 0 3px, transparent 4px),
        radial-gradient(circle, rgba(255,255,255,0.75) 0 1.5px, transparent 2.5px),
        radial-gradient(circle, rgba(255,255,255,0.5) 0 2.5px, transparent 3.5px),
        radial-gradient(circle, rgba(255,255,255,0.7) 0 1.5px, transparent 2.5px);
    background-size: 140px 180px, 95px 140px, 70px 110px, 160px 200px, 110px 150px;
    background-position: 8% 100%, 35% 100%, 58% 100%, 78% 100%, 92% 100%;
    animation: bubble-rise 14s linear infinite;
}

@keyframes bubble-rise {
    from {
        background-position: 8% 100%, 35% 100%, 58% 100%, 78% 100%, 92% 100%;
    }
    to {
        background-position: 8% -20%, 35% -30%, 58% -20%, 78% -35%, 92% -20%;
    }
}

.app-container {
    background: #ffffff;
    width: 90%;
    max-width: 480px;
    padding: 24px;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    box-sizing: border-box;
    position: relative;
    z-index: 1;
}

.top-icons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-bottom: 10px;
}

.icon-btn {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    transition: transform 0.2s;
}

.icon-btn:hover {
    transform: scale(1.1);
}

.header-section {
    text-align: center;
    margin-bottom: 20px;
}

.header-section h1 {
    color: var(--primary-color);
    font-size: 22px;
    margin: 0 0 6px 0;
}

.header-section p {
    color: #64748b;
    font-size: 13px;
    margin: 0;
}

.slots-box {
    border: 2px dashed var(--primary-color);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 20px;
    background: #fafafa;
}

.section-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 16px;
}

.section-row:last-child {
    margin-bottom: 0;
}

.item-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex-grow: 1;
}

.prompt-item {
    font-size: 15px;
    font-weight: bold;
    color: var(--item-text-color);
    text-align: center;
    padding: 8px 8px 8px 44px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
    position: relative;
}

.prompt-item .item-name {
    display: block;
    text-align: center;
}

.prompt-item .icon-label {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
}

.sparkle-line {
    font-size: 11px;
    color: var(--primary-color);
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.blank-space {
    height: 14px;
}

.icon-label {
    color: var(--item-text-color);
}

.item-name {
    color: var(--item-text-color);
}

.single-shuffle-btn {
    width: 36px;
    height: 36px;
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, opacity 0.2s;
    flex-shrink: 0;
}

.single-shuffle-btn:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.shuffle-main-btn {
    width: 100%;
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
    padding: 14px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 14px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.1s, opacity 0.2s;
    position: relative;
    overflow: hidden;
}

.shuffle-main-btn:active {
    transform: scale(0.98);
}

.footer-section {
    text-align: center;
    margin-top: 16px;
    position: relative;
}

.footer-section p {
    color: #94a3b8;
    font-size: 11px;
    margin: 0;
}

.watermark {
    position: absolute;
    right: 0;
    bottom: 0;
    color: #94a3b8;
    font-size: 11px;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: #ffffff;
    padding: 20px;
    border-radius: 16px;
    width: 85%;
    max-width: 360px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    animation: popUpModal 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes popUpModal {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.close-btn {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 20px;
    color: #64748b;
    cursor: pointer;
}

.scroll-box {
    max-height: 150px;
    overflow-y: auto;
    border: 1px solid #e2e8f0;
    padding: 8px;
    border-radius: 8px;
    background: #fff;
}

.custom-input {
    width: 100%;
    padding: 8px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 13px;
}

.apply-btn {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 10px;
}

.btn-ripple-effect {
    position: absolute;
    color: #fff;
    font-size: 14px;
    pointer-events: none;
    animation: ripple-anim 0.6s linear forwards;
}

.btn-sparkle-dot {
    position: absolute;
    background: #fff;
    border-radius: 50%;
    pointer-events: none;
    animation: sparkle-anim 0.5s linear forwards;
}

@keyframes ripple-anim {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 1; }
    100% { transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(1.2); opacity: 0; }
}

@keyframes sparkle-anim {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    100% { transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(0.2); opacity: 0; }
}
/* ===== Pastel Rainbow Theme ===== */
body.theme-rainbow {
    background: linear-gradient(135deg, #ffd6e0 0%, #ffe8cc 20%, #fffacc 40%, #d6f5d6 60%, #d6e8ff 80%, #e6d6ff 100%);
    --rainbow-gradient: linear-gradient(90deg, #ff6f91, #ff9a3c, #ffd93d, #6bcf7f, #4d96ff, #a66dd4);
}

body.theme-rainbow .header-section h1,
body.theme-rainbow .item-name {
    background: var(--rainbow-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

body.theme-rainbow .icon-label {
    color: #5b4b57;
}

body.theme-rainbow .slots-box {
    border: none;
    background-color: #fffdfb;
    background-image: url("data:image/svg+xml;base64,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");
    background-repeat: no-repeat;
    background-size: 100% 100%;
    background-position: center;
}

body.theme-rainbow .prompt-item {
    background: #fffdfb;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

body.theme-rainbow .shuffle-main-btn,
body.theme-rainbow .single-shuffle-btn,
body.theme-rainbow .apply-btn {
    background: var(--rainbow-gradient);
    color: #5b4b57;
}

body.theme-rainbow .scroll-box {
    border: 1px solid transparent;
    border-image: var(--rainbow-gradient) 1;
}

body.theme-rainbow .sparkle-line {
    background: linear-gradient(90deg, #ff9aa2, #ffb7b2, #ffdac1, #e2f0cb, #b5ead7, #c7ceea);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}