/**
 * BirthdayCard.online — festive motion & decorations (modular).
 * FILE_PATH: includes/css/bc-festive-effects.css
 * Respects prefers-reduced-motion.
 */

@keyframes bc-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-14px); }
}

@keyframes bc-sparkle-pulse {
    0%, 100% { opacity: 0.35; transform: scale(0.85); }
    50% { opacity: 1; transform: scale(1.1); }
}

@keyframes bc-hero-shimmer {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes bc-proof-glow {
    0%, 100% { box-shadow: 0 4px 24px rgba(255, 107, 107, 0.12); }
    50% { box-shadow: 0 8px 32px rgba(155, 89, 182, 0.18); }
}

body.birthdaycard-site .bc-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 42%, #ff6b6b 78%, #feca57 100%);
    background-size: 200% 200%;
    animation: bc-hero-shimmer 12s ease infinite;
}

body.birthdaycard-site .bc-floating-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

body.birthdaycard-site .bc-balloon {
    position: absolute;
    width: 36px;
    height: 46px;
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    opacity: 0.75;
    animation: bc-float 5s ease-in-out infinite;
}

body.birthdaycard-site .bc-balloon::after {
    content: '';
    position: absolute;
    bottom: -18px;
    left: 50%;
    width: 2px;
    height: 22px;
    background: rgba(255, 255, 255, 0.45);
    transform: translateX(-50%);
}

body.birthdaycard-site .bc-balloon-pink { background: #ff6b6b; top: 12%; left: 10%; animation-delay: 0s; }
body.birthdaycard-site .bc-balloon-blue { background: #48dbfb; top: 20%; right: 12%; animation-delay: 1.2s; }
body.birthdaycard-site .bc-balloon-mint { background: #1dd1a1; top: 55%; left: 8%; animation-delay: 0.6s; }
body.birthdaycard-site .bc-balloon-gold { background: #feca57; top: 48%; right: 10%; animation-delay: 1.8s; }

body.birthdaycard-site .bc-sparkle {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 12px 3px rgba(255, 255, 255, 0.65);
    animation: bc-sparkle-pulse 2.5s ease-in-out infinite;
}

body.birthdaycard-site .bc-sparkle-1 { top: 18%; left: 48%; }
body.birthdaycard-site .bc-sparkle-2 { top: 35%; right: 28%; animation-delay: 0.8s; }
body.birthdaycard-site .bc-sparkle-3 { top: 62%; left: 38%; animation-delay: 1.4s; }

body.birthdaycard-site .bc-hero-strip {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 6%;
    max-width: 64px;
    opacity: 0.25;
    pointer-events: none;
}

body.birthdaycard-site .bc-hero-strip-left {
    left: 0;
    background: linear-gradient(180deg, #ff6b9d 0%, transparent 55%, #c44569 100%);
    border-radius: 0 12px 12px 0;
}

body.birthdaycard-site .bc-hero-strip-right {
    right: 0;
    background: linear-gradient(180deg, #c44569 0%, transparent 55%, #ff6b9d 100%);
    border-radius: 12px 0 0 12px;
}

body.birthdaycard-site .bc-proof-strip {
    animation: bc-proof-glow 4s ease-in-out infinite;
}

body.birthdaycard-site .bc-step-num {
    background: linear-gradient(135deg, var(--bc-primary) 0%, var(--bc-purple) 100%);
    box-shadow: 0 4px 14px rgba(255, 107, 107, 0.35);
}

body.birthdaycard-site .bc-btn-primary {
    border-radius: 50px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

body.birthdaycard-site .bc-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

body.birthdaycard-site .bc-btn-secondary {
    border-radius: 50px;
}

body.birthdaycard-site .section-title .bc-title-sparkle {
    display: inline;
    color: var(--bc-gold);
}

@media (prefers-reduced-motion: reduce) {
    body.birthdaycard-site .bc-hero,
    body.birthdaycard-site .bc-balloon,
    body.birthdaycard-site .bc-sparkle,
    body.birthdaycard-site .bc-proof-strip {
        animation: none !important;
    }
    body.birthdaycard-site .bc-btn-primary:hover {
        transform: none;
    }
}

@media (max-width: 767.98px) {
    body.birthdaycard-site .bc-balloon,
    body.birthdaycard-site .bc-sparkle {
        display: none;
    }
}