/* 
 * VK Academe - Premium Vanilla CSS
 * Typography: Outfit (headings) & Inter (body)
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    /* Color Palette */
    --color-bg-dark: #0b0f19;
    --color-bg-navy: #111827;
    --color-bg-card: #1f2937;
    --color-bg-card-light: #374151;
    --color-text-light: #f9fafb;
    --color-text-muted: #9ca3af;
    --color-text-dim: #6b7280;
    
    /* Brand Highlights */
    --color-primary: #f97316;       /* Bright Orange */
    --color-primary-hover: #ea580c; /* Deep Orange */
    --color-secondary: #2563eb;     /* Royal Blue */
    --color-secondary-hover: #1d4ed8;
    --color-accent: #22c55e;        /* Success Green */
    --color-accent-hover: #16a34a;
    --color-danger: #ef4444;        /* Error Red */
    
    /* Layout Tokens */
    --font-headings: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container-width: 1100px;
    
    /* Shadow */
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-accent: 0 8px 20px -6px rgba(249, 115, 22, 0.3);
}

/* Base resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    padding-bottom: 85px; /* Offset for fixed bottom CTA bar */
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text-light);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

p {
    margin-bottom: 1rem;
    color: var(--color-text-muted);
}

/* Helpers */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 1.125rem;
    padding: 1.125rem 2.5rem;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: var(--color-text-light);
    box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 25px -4px rgba(249, 115, 22, 0.5);
    color: var(--color-text-light);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Pulse animation for key CTAs */
.pulse-btn {
    animation: btnPulse 2s infinite;
}

@keyframes btnPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(249, 115, 22, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(249, 115, 22, 0);
    }
}

/* Fixed Bottom CTA Bar */
.fixed-bottom-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1rem 0;
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 -8px 25px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

/* Hero Section */
.hero {
    padding: 5rem 0 6rem 0;
    position: relative;
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.15), transparent 45%),
                radial-gradient(circle at bottom left, rgba(249, 115, 22, 0.1), transparent 50%);
}

.badge {
    background-color: rgba(249, 115, 22, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 800px;
    margin: 0 auto 2.5rem auto;
}

.hero-cta-wrapper {
    margin-bottom: 3rem;
}

.hero-pricing-box {
    margin-top: 1rem;
    font-size: 0.95rem;
    color: var(--color-text-dim);
}

.hero-pricing-box span {
    text-decoration: line-through;
    margin-right: 0.5rem;
}

/* Pain Points / Checklist Section */
.pain-points {
    background-color: var(--color-bg-navy);
    padding: 6rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 3rem;
    font-weight: 700;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.pain-list {
    list-style: none;
}

.pain-list li {
    position: relative;
    padding-left: 3rem;
    margin-bottom: 1.75rem;
    font-size: 1.125rem;
    color: var(--color-text-light);
}

.pain-list li svg {
    position: absolute;
    left: 0;
    top: 0.125rem;
    color: var(--color-danger);
    width: 20px;
    height: 20px;
}

/* Graphic Mockup Area */
.mockup-container {
    position: relative;
    display: flex;
    justify-content: center;
}

.mockup-display {
    background-color: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-premium);
    position: relative;
    overflow: hidden;
}

.mockup-display::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.mockup-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.mockup-body {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.mockup-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.mockup-icon {
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--color-primary);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mockup-details h4 {
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.mockup-details p {
    font-size: 0.85rem;
    margin: 0;
}

/* Proof & Testimonials Section */
.proof-section {
    padding: 6rem 0;
    position: relative;
    background: radial-gradient(circle at bottom right, rgba(37, 99, 235, 0.08), transparent 40%);
}

.results-container {
    background-color: var(--color-bg-navy);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    margin-bottom: 4.5rem;
    box-shadow: var(--shadow-premium);
}

.results-header {
    margin-bottom: 2.5rem;
    border-left: 4px solid var(--color-primary);
    padding-left: 1.5rem;
    text-align: left;
}

.results-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.results-dashboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.results-card {
    background-color: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.results-card:hover {
    border-color: rgba(249, 115, 22, 0.25);
    transform: translateY(-3px);
}

.results-niche {
    font-size: 0.85rem;
    color: var(--color-primary);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}

.results-stat {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-text-light);
    font-family: var(--font-headings);
    margin-bottom: 0.5rem;
}

.results-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    background-color: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: var(--transition-smooth);
}

.testimonial-card:hover {
    border-color: rgba(37, 99, 235, 0.25);
    transform: translateY(-3px);
}

.testimonial-text {
    font-size: 0.975rem;
    color: var(--color-text-muted);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    text-align: left;
}

.testimonial-user {
    display: flex;
    align-items: center;
    gap: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.25rem;
}

.testimonial-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    border: 1.5px solid var(--color-primary);
}

.testimonial-info {
    text-align: left;
}

.testimonial-info h4 {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 0.15rem;
}

.testimonial-info p {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    margin: 0;
}

.testimonial-stars {
    color: #eab308;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    text-align: left;
}

/* Why Post Boost Fail section */
.post-boost-myth {
    padding: 6rem 0;
}

.myth-card {
    background: linear-gradient(145deg, var(--color-bg-card) 0%, rgba(31, 41, 55, 0.5) 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    padding: 4rem;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: var(--shadow-premium);
}

.myth-steps {
    display: flex;
    justify-content: space-between;
    margin: 3rem 0;
    position: relative;
}

.myth-steps::after {
    content: '';
    position: absolute;
    top: 25px;
    left: 10%;
    right: 10%;
    height: 2px;
    background-color: rgba(255, 255, 255, 0.05);
    z-index: 1;
}

.myth-step {
    position: relative;
    z-index: 2;
    background-color: var(--color-bg-card);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.myth-steps-labels {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    gap: 1rem;
}

.myth-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

/* Course Chapters Accordion */
.chapters {
    background-color: var(--color-bg-navy);
    padding: 6rem 0;
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    border: 1px solid rgba(255, 255, 255, 0.05);
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-md);
    margin-bottom: 1.25rem;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.accordion-header {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    font-family: var(--font-headings);
    font-weight: 600;
    font-size: 1.15rem;
}

.accordion-header:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.accordion-icon {
    transition: var(--transition-smooth);
    color: var(--color-primary);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-smooth);
    background-color: rgba(0, 0, 0, 0.15);
}

.accordion-content-inner {
    padding: 1.5rem 2rem;
    color: var(--color-text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.accordion-item.active {
    border-color: rgba(249, 115, 22, 0.3);
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

/* Target Audience Segment Styles */
.audience {
    padding: 6rem 0;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3.5rem;
}

.audience-card {
    background-color: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: var(--border-radius-md);
    padding: 2.5rem 2rem;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.audience-card:hover {
    transform: translateY(-5px);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

.audience-icon {
    color: var(--color-secondary);
    margin-bottom: 1.25rem;
}

.audience-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

/* Included Offer Stack */
.offer-stack {
    background-color: var(--color-bg-navy);
    padding: 6rem 0;
}

.offer-card {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    border: 2px solid var(--color-primary);
    border-radius: var(--border-radius-lg);
    padding: 4rem;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    position: relative;
}

.pricing-title {
    font-size: 1.75rem;
    letter-spacing: 0.5px;
    margin-bottom: 2rem;
}

.offer-row {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.offer-row:last-of-type {
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
}

.offer-name {
    font-size: 1.15rem;
    font-weight: 500;
}

.offer-value {
    color: var(--color-text-muted);
    font-weight: 600;
}

.pricing-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.strike-price {
    font-size: 1.25rem;
    color: var(--color-text-dim);
    text-decoration: line-through;
    margin-bottom: 0.5rem;
}

.final-price {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-headings);
    color: var(--color-text-light);
}

/* FAQ Accordion Section */
.faqs {
    padding: 6rem 0;
}

/* Footer Section */
footer {
    background-color: #080c14;
    padding: 4rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--color-text-dim);
    font-size: 0.9rem;
}

footer p {
    color: var(--color-text-dim);
    margin-bottom: 1.5rem;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 2rem;
}

/* Checkout Form Modal (Popup overlay) */
.checkout-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-smooth);
}

.checkout-modal.open {
    opacity: 1;
    pointer-events: auto;
}

.checkout-box {
    background-color: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 480px;
    padding: 3rem;
    box-shadow: var(--shadow-premium);
    position: relative;
    transform: translateY(30px);
    transition: transform var(--transition-smooth);
}

.checkout-modal.open .checkout-box {
    transform: translateY(0);
}

.checkout-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.checkout-close:hover {
    color: var(--color-text-light);
}

.checkout-header {
    text-align: center;
    margin-bottom: 2rem;
}

.checkout-header h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.checkout-price-pill {
    background-color: rgba(249, 115, 22, 0.1);
    border: 1px solid rgba(249, 115, 22, 0.3);
    color: var(--color-primary);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 700;
    display: inline-block;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    background-color: var(--color-bg-navy);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: 1rem 1.25rem;
    color: var(--color-text-light);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

.phone-input-container {
    display: flex;
    align-items: center;
    background-color: var(--color-bg-navy);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: var(--transition-fast);
}

.phone-input-container:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

.phone-prefix {
    padding: 1rem 0.5rem 1rem 1.25rem;
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 1rem;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    user-select: none;
}

.phone-input-container .form-control {
    border: none !important;
    background: transparent !important;
    padding-left: 0.75rem !important;
    box-shadow: none !important;
}

.form-error {
    color: var(--color-danger);
    font-size: 0.825rem;
    margin-top: 0.4rem;
    display: none;
}

.btn-submit {
    width: 100%;
    margin-top: 1rem;
}

/* Demo Simulation Popup Panel */
.demo-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-smooth);
}

.demo-modal.open {
    opacity: 1;
    pointer-events: auto;
}

.demo-box {
    background-color: #1e293b;
    border: 2px dashed var(--color-primary);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-premium);
}

.demo-box h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.demo-box p {
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.demo-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn-demo-success {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    color: #fff;
}

.btn-demo-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(34, 197, 94, 0.3);
}

.btn-demo-fail {
    background: linear-gradient(135deg, var(--color-danger) 0%, #b91c1c 100%);
    color: #fff;
}

.btn-demo-fail:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.3);
}

/* Spinner Loader style */
.loader-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    display: inline-block;
    vertical-align: middle;
    margin-left: 0.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 960px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .results-dashboard, .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .results-container {
        padding: 1.5rem;
    }
    
    .hero {
        text-align: center;
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .mockup-container {
        order: -1;
    }
    
    .myth-steps {
        display: none;
    }
    
    .myth-steps-labels {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: left;
    }
    
    .myth-label {
        font-size: 1.1rem;
        background-color: rgba(255, 255, 255, 0.02);
        padding: 1rem;
        border-radius: var(--border-radius-md);
        border-left: 3px solid var(--color-primary);
    }
    
    .offer-card {
        padding: 2.5rem;
    }
    
    .pricing-block {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        text-align: center;
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2.25rem;
    }
    
    .container {
        padding: 0 1.25rem;
    }
    
    .checkout-box {
        padding: 2rem 1.5rem;
    }
}