* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body,
html {
    width: 100%;
    height: 100%;
    background-color: #0d0d0d;
    /* Deep Dark Slate / Black */
    color: #f0f0f0;
    /* Off-white for high readability */
    overflow: hidden;
}

/* Horizontal Slider Navigation Buttons (Structural) */
.nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.4);
    /* Faded white/gray initially */
    font-size: 8rem;
    /* Huge arrow */
    font-weight: 900;
    /* Very bold and noticeable */
    font-family: 'Outfit', sans-serif;
    padding: 1rem 2rem;
    cursor: pointer;
    z-index: 100;
    transition: all 0.3s ease;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    /* Subtle shadow for contrast */
}

.nav-btn:hover {
    color: #ff3366;
    /* Vibrant pink on hover */
    text-shadow: 0 0 20px #ff3366, 0 0 40px #ff3366;
    /* Intense glow */
    transform: translateY(-50%) scale(1.1);
}

.nav-btn.prev {
    left: 20px;
}

.nav-btn.next {
    right: 20px;
}

.nav-btn.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Background Canvas */
#heartfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.slider-container {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    position: relative;
    z-index: 10;
}

.slider-track {
    display: flex;
    height: 100vh;
    height: 100dvh;
    width: 500vw;
    /* 5 slides * 100vw */
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform;
}

.slide {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 5rem;
    /* Extra padding on sides for buttons */
    position: relative;
    overflow-y: auto;
    /* Allow reading long slides if they overflow vertically */
    scrollbar-width: none;
}

.slide::-webkit-scrollbar {
    display: none;
}

.content {
    max-width: 650px;
    width: 100%;
    text-align: center;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 1s cubic-bezier(0.175, 0.885, 0.32, 1.275), transform 1s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.slide.active .content {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Friendly Typography */
h1 {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -1px;
    margin-bottom: 1rem;
    line-height: 1.1;
    color: #ffffff;
}

.highlight {
    color: #ff3366;
    /* Vibrant neon pink/crimson */
    display: block;
    font-size: 4.5rem;
    text-shadow: 0 0 15px rgba(255, 51, 102, 0.6), 0 0 30px rgba(255, 51, 102, 0.3);
}

h2 {
    font-family: 'Playpen Sans', cursive;
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: #ff1a53;
    text-shadow: 0 0 10px rgba(255, 26, 83, 0.4);
}

p {
    font-size: 1.25rem;
    color: #cccccc;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.subtitle {
    font-size: 1.5rem;
    color: #ff6688;
    font-weight: 700;
}

/* Heart Icons */
.heart-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: heartBeat 1.5s infinite;
}

.heart-icon.huge {
    font-size: 6rem;
}

.heart-icon.gigantic {
    font-size: 8rem;
    animation: heartBeat 1s infinite;
}

@keyframes heartBeat {
    0% {
        transform: scale(1);
    }

    14% {
        transform: scale(1.3);
    }

    28% {
        transform: scale(1);
    }

    42% {
        transform: scale(1.3);
    }

    70% {
        transform: scale(1);
    }
}

/* Data Blocks & Clean Lists (Slide 2) */
.data-block {
    background: rgba(255, 255, 255, 0.03);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 51, 102, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    text-align: left;
}

.lead-text {
    font-size: 1.5rem;
    color: #ff6688;
    font-style: italic;
    text-align: center;
    margin-bottom: 2rem;
}

.clean-list {
    list-style: none;
    margin-bottom: 2rem;
}

.clean-list li {
    font-size: 1.15rem;
    color: #e0e0e0;
    margin-bottom: 1.2rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.5;
}

.clean-list li::before {
    content: "✧";
    position: absolute;
    left: 0;
    color: #ff3366;
    font-size: 1.2rem;
}

.clean-list li strong {
    color: #ff1a53;
    font-weight: 700;
}

.confidence-text {
    font-weight: 700;
    font-size: 1.3rem;
    color: #ffffff;
    text-align: center;
    margin-bottom: 0;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

/* Scroll Hint */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.8;
    transition: opacity 0.5s ease;
}

.scroll-indicator.hidden {
    opacity: 0;
    pointer-events: none;
}

.scroll-indicator span {
    font-family: 'Playpen Sans', cursive;
    font-size: 1.2rem;
    color: #ff3366;
}

.arrow {
    font-size: 2rem;
    margin-top: 0.2rem;
    color: #ff3366;
    animation: bounceDown 2s infinite;
}

@keyframes bounceDown {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(10px);
    }

    60% {
        transform: translateY(5px);
    }
}

/* Energy Bars */
.energy-container {
    margin-bottom: 2rem;
    text-align: left;
    background: #fff;
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(255, 51, 102, 0.1);
}

.energy-container label {
    display: block;
    font-weight: 700;
    font-size: 1.2rem;
    color: #4a1525;
    margin-bottom: 0.8rem;
}

.aura-bar {
    width: 100%;
    height: 12px;
    background: #ffeef2;
    border-radius: 6px;
    overflow: hidden;
}

.aura-bar .fill {
    height: 100%;
    width: 0;
    transition: width 1.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.fill.pink {
    background: #ff6688;
}

.fill.crimson {
    background: #ff1a53;
}

/* Grid Benefits */
.grid-benefits {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    transform: translateY(0);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(255, 51, 102, 0.15);
    border-color: rgba(255, 51, 102, 0.4);
}

.benefit-card h3 {
    font-size: 1.3rem;
    color: #ff3366;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 8px rgba(255, 51, 102, 0.3);
}

.benefit-card p {
    font-size: 1rem;
    color: #cccccc;
    margin-bottom: 0;
}

/* Review Grid (Slide 3) */
.review-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.review-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 51, 102, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(255, 51, 102, 0.15);
    border-color: rgba(255, 51, 102, 0.4);
}

.review-rating {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px rgba(255, 51, 102, 0.5);
}

.review-text {
    font-style: italic;
    font-size: 1.2rem;
    color: #e0e0e0;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.review-author {
    font-weight: 700;
    color: #ff3366;
    font-size: 1rem;
    text-align: right;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .review-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .grid-benefits {
        grid-template-columns: 1fr;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.3rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    width: 100%;
    max-width: 350px;
}

.btn.primary {
    background: #ff3366;
    color: white;
    box-shadow: 0 8px 20px rgba(255, 51, 102, 0.3);
}

.btn.primary:hover {
    background: #ff1a53;
    transform: scale(1.05) translateY(-3px);
    box-shadow: 0 12px 25px rgba(255, 51, 102, 0.4);
}

/* Facebook Button specific styles (Now themed pink) */
.btn.facebook-btn {
    background: #ff3366;
    /* Match the neon pink */
    color: white;
    box-shadow: 0 8px 20px rgba(255, 51, 102, 0.4);
    margin-top: 1rem;
    border: 1px solid rgba(255, 51, 102, 0.8);
}

.btn.facebook-btn:hover {
    background: #ff1a53;
    /* Darker neon pink on hover */
    transform: scale(1.05) translateY(-3px);
    box-shadow: 0 12px 25px rgba(255, 51, 102, 0.6), 0 0 20px rgba(255, 51, 102, 0.8);
    color: #fff;
}

/* --- MOBILE OPTIMIZATION --- */
@media (max-width: 768px) {

    /* Move arrows to the bottom on mobile to avoid covering text */
    .nav-btn {
        position: fixed;
        /* Ensures they don't get trapped below the mobile URL bar */
        top: auto;
        bottom: 30px;
        transform: translateY(0);
        font-size: 2.5rem;
        padding: 0;
        width: 60px;
        height: 60px;
        display: flex;
        align-items: center;
        justify-content: center;
        /* Make them neon pink and extremely obvious */
        background: rgba(255, 51, 102, 0.1);
        color: #ff3366;
        border: 2px solid #ff3366;
        border-radius: 50%;
        box-shadow: 0 0 15px rgba(255, 51, 102, 0.6);
        text-shadow: 0 0 10px #ff3366;
        z-index: 1000;
    }

    .nav-btn:hover {
        transform: scale(1.1);
        /* Don't translate Y since we removed top: 50% */
    }

    .nav-btn.prev {
        left: 20px;
    }

    .nav-btn.next {
        right: 20px;
    }

    /* Reduce side padding on slides to maximize width, leave room at bottom */
    .slide {
        padding: 2.5rem 1.5rem 6rem 1.5rem;
        /* 6rem bottom padding for arrows */
        flex-direction: column;
        justify-content: flex-start;
        /* Prevent vertical centering from pushing content off screen */
    }

    /* Pull content back up if it was centered awkwardly */
    .slide.active .content {
        transform: translateY(20px) scale(1);
        /* Give it a slight top margin visually */
    }

    /* Typography scaling */
    h1 {
        font-size: 2rem;
        margin-bottom: 0.8rem;
    }

    .highlight {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.6rem;
        margin-bottom: 1rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    p {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    /* Data blocks and spacing */
    .data-block {
        padding: 1.5rem;
    }

    .lead-text {
        font-size: 1.2rem;
        margin-bottom: 1rem;
    }

    .clean-list li {
        font-size: 0.95rem;
        margin-bottom: 0.8rem;
    }

    .confidence-text {
        font-size: 1.1rem;
    }

    /* Stack grid elements vertically and reduce padding */
    .grid-benefits,
    .review-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
        margin-top: 1rem;
    }

    .benefit-card {
        padding: 1rem;
    }

    .benefit-card h3 {
        font-size: 1.1rem;
    }

    .benefit-card p {
        font-size: 0.9rem;
    }

    .review-card {
        padding: 1.2rem;
    }

    .review-text {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }

    .energy-container {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .energy-container label {
        font-size: 1rem;
    }

    /* Reduce icon sizes */
    .heart-icon {
        font-size: 2rem;
    }

    .heart-icon.huge.glow,
    .heart-icon.gigantic {
        font-size: 3.5rem;
    }

    /* Buttons */
    .btn {
        font-size: 1rem;
        padding: 0.8rem 1.5rem;
    }
}