/* css/braincraft-lp.css */
/* Premium Glassmorphism & Cyber-Dark Purple Design for BrainCraft LP */

:root {
    --purple-glow: rgba(139, 92, 246, 0.4);
    --teal-glow: rgba(0, 206, 201, 0.4);
    --dark-bg: #09090b;
    --card-bg: rgba(30, 27, 75, 0.4);
    --card-border: rgba(139, 92, 246, 0.2);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
}

body.braincraft-lp-body {
    background-color: var(--dark-bg);
    background-image: 
        radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(0, 206, 201, 0.12) 0px, transparent 50%);
    color: var(--text-primary);
    font-family: 'Noto Sans JP', 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.bc-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Glassmorphism Header */
.bc-header {
    background: rgba(9, 9, 11, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 0;
}

.bc-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bc-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    text-decoration: none;
}

.bc-logo span {
    color: #a78bfa;
}

/* Hero Section */
.bc-hero {
    padding: 100px 0 80px 0;
    text-align: center;
    position: relative;
}

.bc-hero-badge {
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.3);
    color: #c084fc;
    font-size: 0.88rem;
    font-weight: 800;
    padding: 8px 20px;
    border-radius: 50px;
    display: inline-block;
    margin-bottom: 24px;
    letter-spacing: 0.05em;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.bc-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.25;
    margin: 0 0 24px 0;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 30%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bc-hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto 40px auto;
    line-height: 1.6;
}

/* Premium Buttons */
.bc-btn-premium {
    background: linear-gradient(135deg, #8b5cf6 0%, #00cec9 100%);
    color: #fff;
    font-size: 1.15rem;
    font-weight: 800;
    padding: 18px 45px;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
    position: relative;
    overflow: hidden;
}

.bc-btn-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.bc-btn-premium:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(139, 92, 246, 0.6);
}

.bc-btn-premium:hover::before {
    left: 100%;
}

/* Grid of Struggles */
.bc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 50px;
}

.bc-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 24px;
    padding: 30px;
    text-align: left;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.bc-card:hover {
    transform: translateY(-8px);
    border-color: rgba(139, 92, 246, 0.5);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.15);
}

.bc-card-icon {
    font-size: 2rem;
    margin-bottom: 20px;
    display: inline-block;
}

.bc-card h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin: 0 0 12px 0;
    color: #fff;
}

.bc-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Features List Section */
.bc-features-section {
    padding: 80px 0;
    background: rgba(255, 255, 255, 0.01);
    border-y: 1px solid rgba(255, 255, 255, 0.03);
}

.bc-section-title {
    font-size: 2.2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 60%, #00cec9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bc-section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Reviews / Testimonials */
.bc-reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.bc-review-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px dashed rgba(0, 206, 201, 0.25);
    border-radius: 20px;
    padding: 24px;
    font-style: italic;
    color: #e2e8f0;
    line-height: 1.6;
    font-size: 0.92rem;
}

/* Sticky Bottom Bar */
.bc-sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(9, 9, 11, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(139, 92, 246, 0.3);
    padding: 16px 0;
    z-index: 99;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
}

@media (max-width: 768px) {
    .bc-hero h1 {
        font-size: 2.2rem;
    }
    .bc-hero p {
        font-size: 1.05rem;
    }
    .bc-btn-premium {
        padding: 14px 30px;
        font-size: 1rem;
        width: 100%;
        justify-content: center;
    }
    .bc-sticky-bar {
        padding: 12px 16px;
    }
}

/* FAQ details/summary */
details summary {
    cursor: pointer;
    outline: none;
    user-select: none;
}
details summary::-webkit-details-marker {
    display: none;
}
details[open] {
    border-color: rgba(139, 92, 246, 0.45) !important;
}
details[open] summary span:last-child {
    transform: rotate(45deg);
    display: inline-block;
    transition: transform 0.2s ease;
}

/* Review cards */
.bc-review-card cite {
    font-style: normal;
    color: #64748b;
    font-size: 0.78rem;
    display: block;
    margin-top: 12px;
}

/* Step numbers hover effect */
.bc-step-item {
    transition: transform 0.2s, border-color 0.2s;
}
.bc-step-item:hover {
    transform: translateX(4px);
    border-color: rgba(139, 92, 246, 0.4) !important;
}

@media (max-width: 600px) {
    .bc-hero h1 {
        font-size: 1.8rem;
    }
    .bc-section-title {
        font-size: 1.6rem;
    }
}