:root {
    --primary-purple: #8A2BE2;
    --primary-blue: #00F0FF;
    --primary-red: #FF0055;
    --dark-bg: #050510;
    --card-bg: rgba(20, 20, 35, 0.6);
    --text-main: #FFFFFF;
    --text-muted: #A0A0B0;
    --gradient-main: linear-gradient(135deg, #8A2BE2 0%, #FF0055 100%);
    --gradient-blue: linear-gradient(135deg, #00F0FF 0%, #0055FF 100%);

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --radius-sm: 8px;
    --radius-lg: 20px;
}

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

body {
    background-color: var(--dark-bg);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
    /* Base for mobile */
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 90%;
    max-width: 500px;
    /* Mobile first constrained width for readability */
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

@media (min-width: 768px) {
    .container {
        max-width: 1000px;
    }
}

/* Utilities */
.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 2rem;
}

.mt-4 {
    margin-top: 1rem;
}

.padding-y {
    padding: 80px 0;
}

.padding-small {
    padding: 40px 0;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 30px;
    background: linear-gradient(to right, #fff, #a0a0a0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.highlight-text {
    color: var(--primary-blue);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

.highlight-purple {
    color: var(--primary-purple);
}

.highlight-red {
    color: var(--primary-red);
}

.highlight-blue {
    color: var(--primary-blue);
}

.text-gradient-purple {
    background: linear-gradient(90deg, #b065ff, #ff6584);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.text-gradient-red {
    color: var(--primary-red);
}

.text-gradient-gold {
    color: #FFD700;
    text-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
}

/* Buttons */
.cta-button {
    display: inline-block;
    background: var(--gradient-main);
    color: white;
    font-weight: 700;
    font-family: var(--font-heading);
    padding: 1.2rem 2.5rem;
    border-radius: 50px;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 10px 20px rgba(255, 0, 85, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
    max-width: 350px;
    margin: 0 auto;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(255, 0, 85, 0.5);
}

.mega-button {
    padding: 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #00C6FF 0%, #0072FF 100%);
    box-shadow: 0 10px 30px rgba(0, 114, 255, 0.4);
}

.btn-title {
    font-size: 1.5rem;
    line-height: 1;
    margin-bottom: 5px;
}

.btn-subtitle {
    font-size: 0.9rem;
    font-weight: 400;
    opacity: 0.9;
    text-transform: none;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 60px;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('./assets/hero_bg.png') center/cover no-repeat;
    opacity: 0.4;
    z-index: 0;
    filter: brightness(0.6) contrast(1.2);
}

.hero-bg-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, var(--dark-bg) 0%, transparent 40%, transparent 60%, var(--dark-bg) 100%);
    z-index: 1;
}

.hero-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.badge {
    background: rgba(255, 255, 255, 0.1);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary-blue);
}

.main-title {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Audience Cards */
.cards-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: 1fr;
}

.glass-card {
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform 0.3s ease;
}

.glass-card:hover {
    border-color: var(--primary-purple);
}

.icon-box {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

/* Learning List */
.learning-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.learning-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    background: rgba(10, 10, 20, 0.5);
    padding: 20px;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary-red);
}

.check-icon {
    color: var(--primary-blue);
    font-weight: bold;
    font-size: 1.2rem;
    margin-top: 2px;
}

.learning-item h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: white;
}

.learning-item p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Peptides Grid */
.peptides-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

@media (min-width: 480px) {
    .peptides-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.peptide-tag {
    background: rgba(40, 40, 60, 0.5);
    padding: 12px;
    font-size: 0.9rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.peptide-tag:hover {
    background: rgba(138, 43, 226, 0.2);
    border-color: var(--primary-purple);
    transform: translateY(-2px);
}

/* Mockup Section */
.mockup-container {
    position: relative;
    max-width: 80%;
    margin-bottom: 30px;
    animation: float 6s ease-in-out infinite;
}

.ebook-img {
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 20px 40px rgba(138, 43, 226, 0.3));
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(138, 43, 226, 0.2) 0%, transparent 70%);
    z-index: -1;
}

.impact-phrase {
    font-size: 1.8rem;
    font-style: italic;
    line-height: 1.3;
}

/* Difference */
.difference-box {
    padding: 30px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, rgba(20, 20, 30, 0.8) 0%, rgba(10, 10, 15, 0.95) 100%);
}

.diff-content p {
    margin-bottom: 1rem;
    color: #ddd;
}

/* Disclaimer */
.disclaimer-box {
    border: 1px solid #333;
    padding: 15px;
    border-radius: 8px;
    font-size: 0.7rem;
    color: #666;
    text-align: center;
    background: #000;
}

/* Animations */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 0, 85, 0.7);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(255, 0, 85, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 0, 85, 0);
    }
}

.pulse-animation {
    animation: pulse 2s infinite;
}

/* Scroll Animations */
.fade-in-up,
.slide-up,
.fade-in,
.pop-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.pop-in {
    transform: scale(0.8);
}

.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.3s;
}

.delay-3 {
    transition-delay: 0.5s;
}

/* Responsive Adjustments */
@media (min-width: 768px) {
    .main-title {
        font-size: 5rem;
    }

    .hero-section {
        min-height: 90vh;
    }

    .cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .peptides-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .container {
        max-width: 900px;
    }

    .flex-center-col {
        flex-direction: row;
        gap: 4rem;
        align-items: center;
        justify-content: center;
    }

    .mockup-container {
        max-width: 400px;
        order: 2;
    }

    .impact-phrase {
        max-width: 400px;
        text-align: left;
        font-size: 2.2rem;
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.7;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid #fff;
    border-radius: 20px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: #fff;
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        top: 8px;
    }

    100% {
        opacity: 0;
        top: 24px;
    }
}