:root {
    --green-accent: #2EFF7B;
    --green-glow: rgba(46, 255, 123, 0.3);
    --green-shadow: rgba(46, 255, 123, 0.15);
    --text-primary: #FFFFFF;
    --text-secondary: #A0AEC0;
    --bg-dark: #0D0F12;
    --card-bg: #15181D;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-deep: rgba(0, 0, 0, 0.5);
    --shadow-soft: rgba(0, 0, 0, 0.2);
}


/* --- Reset --- */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body.dark-theme {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: 3rem 1rem;
    position: relative;
    overflow-x: hidden;
}


/* --- Animations --- */

@keyframes backgroundBreathe {
    0%,
    100% {
        transform: translateX(-50%) scale(1);
        opacity: 0.05;
    }
    50% {
        transform: translateX(-50%) scale(1.2);
        opacity: 0.08;
    }
}

@keyframes priceBreathe {
    0%,
    100% {
        text-shadow: 0 0 15px var(--green-glow), 0 0 30px var(--green-glow), 0 0 50px var(--green-shadow);
        filter: brightness(1);
    }
    50% {
        text-shadow: 0 0 20px var(--green-glow), 0 0 40px var(--green-glow), 0 0 70px var(--green-shadow);
        filter: brightness(1.1);
    }
}

@keyframes blink {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

@keyframes iosPulse {
    0% {
        transform: scale(1);
        filter: brightness(1);
    }
    40% {
        transform: scale(1.015);
        /* latido suave */
        filter: brightness(1.08);
        /* más vivo */
    }
    100% {
        transform: scale(1);
        filter: brightness(1);
    }
}


/* --- Background glow --- */

.background-glow {
    position: absolute;
    top: -20%;
    left: 50%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--green-accent) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
    animation: backgroundBreathe 20s ease-in-out infinite;
}


/* --- Main Content --- */

.main-content {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.super-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 4px;
    margin-bottom: 0.25rem;
    display: block;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 6rem;
    font-weight: 900;
    margin: 0 0 1.5rem;
    line-height: 1;
    letter-spacing: -3px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto;
    height: auto;
    min-height: 60px;
    line-height: 1.6;
}

.cursor {
    display: inline-block;
    width: 2px;
    height: 1.2rem;
    background-color: var(--green-accent);
    margin-left: 5px;
    animation: blink 1s infinite;
}

.char {
    display: inline-block;
    overflow: hidden;
    vertical-align: bottom;
}

.char span {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}


/* --- Class Content Grid --- */

.class-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: flex-start;
}


/* --- Video Wrapper --- */

.video-wrapper {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 50px var(--shadow-deep);
    transition: all 0.5s ease;
}

.video-wrapper:hover {
    box-shadow: 0 40px 80px var(--shadow-deep), 0 0 120px var(--green-shadow);
    transform: translateY(-5px);
}

.video-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 16px;
    background: #000;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}


/* --- Pricing & Login Wrappers --- */

.pricing-wrapper {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.price-card,
.login-box {
    border-radius: 24px;
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--border-color);
    background: linear-gradient(145deg, #1A1D22, #101216);
    box-shadow: 0 30px 60px var(--shadow-deep), 0 0 100px -20px var(--green-shadow);
    transition: all 0.5s ease;
}

.price-card:hover,
.login-box:hover {
    box-shadow: 0 40px 80px var(--shadow-deep), 0 0 120px var(--green-shadow);
    transform: translateY(-5px);
}

.actions-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.actions-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}


/* --- Price Tag --- */

.price-tag {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 1.5rem;
}

.original-price {
    font-size: 2rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: line-through;
    opacity: 0.7;
}

.current-price {
    font-size: 6rem;
    font-weight: 900;
    line-height: 1;
    color: var(--green-accent);
    position: relative;
    margin-bottom: 0.5rem;
}

.glow-effect {
    display: inline-block;
    animation: priceBreathe 5s ease-in-out infinite;
}

.offer-deadline {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}


/* --- Buttons --- */

.cta-button {
    display: inline-block;
    width: 100%;
    max-width: 350px;
    padding: 1.2rem 2rem;
    background-color: var(--green-accent);
    color: var(--bg-dark);
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 12px;
    border: 2px solid transparent;
    position: relative;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: transparent;
    color: var(--green-accent);
    border-color: var(--green-accent);
    box-shadow: 0 0 30px var(--green-shadow), inset 0 0 20px var(--green-shadow);
}

.cta-button:active {
    transform: scale(0.98);
    filter: brightness(0.9);
    transition-duration: 0.1s;
}


/* --- Scroll Animations --- */

.animate-on-scroll {
    opacity: 0;
    filter: blur(5px);
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, filter 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
}


/* --- Responsive --- */

@media (min-width: 992px) {
    .class-content {
        grid-template-columns: 2fr 1fr;
    }
}

@media (max-width: 768px) {
    body.dark-theme {
        padding: 2rem 1rem;
    }
    .section-title {
        font-size: 4.5rem;
    }
    .section-subtitle {
        font-size: 1.1rem;
        height: auto;
        min-height: 50px;
    }
    .current-price {
        font-size: 5rem;
    }
    .original-price {
        font-size: 1.8rem;
    }
    .price-card,
    .login-box {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 3.2rem;
        letter-spacing: -1.5px;
    }
    .section-subtitle {
        font-size: 1rem;
        min-height: 70px;
    }
    .current-price {
        font-size: 4rem;
    }
    .original-price {
        font-size: 1.5rem;
    }
    .cta-button {
        font-size: 1.1rem;
        padding: 1rem 1.5rem;
    }
}