/* === Custom Styles for "Joined at the Hip" === */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollBounce {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.6;
    }
    50% {
        transform: translateY(12px);
        opacity: 1;
    }
}

@keyframes answerReveal {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.3;
    }
    25% {
        transform: translateY(-20px) rotate(5deg);
        opacity: 0.6;
    }
    50% {
        transform: translateY(-35px) rotate(-3deg);
        opacity: 0.4;
    }
    75% {
        transform: translateY(-15px) rotate(2deg);
        opacity: 0.7;
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(129, 212, 250, 0.4);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(129, 212, 250, 0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 1s ease forwards;
}

.animate-scrollBounce {
    animation: scrollBounce 2s ease-in-out infinite;
}

.animate-answerReveal {
    animation: answerReveal 0.5s ease forwards;
}

/* Polaroid frame effect */
.polaroid-frame {
    background: white;
    padding: 8px 8px 16px;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
}

.polaroid-frame:hover {
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18), 0 4px 8px rgba(0, 0, 0, 0.1);
}

.polaroid-frame-sm {
    background: white;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
}

.polaroid-frame-sm:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15), 0 3px 6px rgba(0, 0, 0, 0.08);
}

/* Timeline dot pulse on scroll */
.timeline-item.visible .absolute.left-4,
.timeline-item.visible .absolute.md\\:left-1\\/2 {
    animation: pulse 2s ease-in-out 1;
}

/* Fade in on scroll */
.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navbar scrolled state */
#navbar.scrolled {
    background: rgba(13, 27, 62, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

#navbar.scrolled #navLogo {
    opacity: 1;
}

/* Nav link hover effect */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #81d4fa;
    transition: width 0.3s ease;
    border-radius: 1px;
}

.nav-link:hover::after {
    width: 100%;
}

/* Floating particles */
.particle {
    position: absolute;
    pointer-events: none;
    animation: float 6s ease-in-out infinite;
    opacity: 0;
}

.particle:nth-child(odd) {
    animation-duration: 8s;
    animation-delay: 1s;
}

.particle:nth-child(3n) {
    animation-duration: 7s;
    animation-delay: 2s;
}

.particle:nth-child(5n) {
    animation-duration: 9s;
    animation-delay: 0.5s;
}

/* Scrapbook hover */
.scrapbook-item {
    transition: transform 0.3s ease;
}

.scrapbook-item:hover {
    transform: translateY(-4px);
}

/* Mobile menu */
#mobileMenu {
    animation: slideDown 0.3s ease forwards;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive polaroid adjustments */
@media (max-width: 768px) {
    .polaroid-frame img,
    .polaroid-frame-sm img {
        height: 140px;
    }
    .timeline-item .polaroid-frame {
        max-width: 85%;
    }
}

@media (max-width: 480px) {
    .polaroid-frame-sm img {
        height: 120px;
    }
    #countdownDays, #countdownHours, #countdownMinutes, #countdownSeconds {
        font-size: 2rem;
    }
}

/* Spotify embed styling */
iframe[src*="spotify"] {
    border-radius: 12px !important;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #fdf6e3;
}

::-webkit-scrollbar-thumb {
    background: #b3e5fc;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #81d4fa;
}

/* Prose adjustments for letter */
.prose p {
    margin-bottom: 1.2em;
}

/* Quiz button active */
#revealAnswer:active {
    transform: scale(0.95);
}

/* Smooth transition for all interactive elements */
a, button, .polaroid-frame, .polaroid-frame-sm, .scrapbook-item {
    -webkit-tap-highlight-color: transparent;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .animate-fadeInUp,
    .animate-scrollBounce,
    .animate-answerReveal,
    .particle {
        animation: none !important;
    }
    .fade-in-on-scroll {
        opacity: 1;
        transform: none;
        transition: none;
    }
}