/* ============================================
   MARCUS AI ACADEMY — Premium Design System
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---- CSS Variables ---- */
:root {
    --bg-primary: #06080f;
    --bg-secondary: #0c1120;
    --bg-tertiary: #131b2e;
    --bg-card: rgba(19, 27, 46, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(255, 255, 255, 0.14);
    --text-primary: #f0f4f8;
    --text-secondary: #8b9dc3;
    --text-muted: #4a5a7a;
    --accent: #7c3aed;
    --accent-hover: #8b5cf6;
    --accent-glow: rgba(124, 58, 237, 0.25);
    --accent2: #ec4899;
    --accent3: #3b82f6;
    --gradient-hero: linear-gradient(135deg, #7c3aed 0%, #ec4899 50%, #f59e0b 100%);
    --gradient-btn: linear-gradient(135deg, #7c3aed, #a855f7);
    --gradient-card: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(236, 72, 153, 0.04));
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.15);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --transition: 250ms ease;
    --max-width: 1200px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--bg-tertiary) transparent
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased
}

a {
    color: var(--accent-hover);
    text-decoration: none;
    transition: color var(--transition)
}

a:hover {
    color: #c084fc
}

img {
    max-width: 100%;
    display: block
}

::-webkit-scrollbar {
    width: 6px
}

::-webkit-scrollbar-track {
    background: transparent
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 3px
}

/* ---- Utilities ---- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px
}

.section {
    padding: 100px 0
}

.section-label {
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .15em;
    color: var(--accent);
    margin-bottom: 12px;
    display: inline-block
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -.03em;
    line-height: 1.2;
    margin-bottom: 16px
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7
}

.text-gradient {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text
}

.text-center {
    text-align: center
}

.mx-auto {
    margin-left: auto;
    margin-right: auto
}

/* ---- Navigation ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition)
}

.navbar.scrolled {
    background: rgba(6, 8, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: -.02em
}

.nav-brand-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-btn);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none
}

.nav-links a {
    color: var(--text-secondary);
    font-size: .85rem;
    font-weight: 500;
    transition: color var(--transition)
}

.nav-links a:hover {
    color: var(--text-primary)
}

.nav-cta {
    padding: 8px 20px;
    background: var(--gradient-btn);
    border-radius: var(--radius-full);
    color: #fff !important;
    font-weight: 600;
    font-size: .8rem;
    transition: all var(--transition)
}

.nav-cta:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px)
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer
}

/* ---- Hero ---- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, transparent 70%);
    pointer-events: none
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.08) 0%, transparent 70%);
    pointer-events: none
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: .75rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 28px
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1
    }

    50% {
        opacity: .4
    }
}

.hero h1 {
    font-size: 3.8rem;
    font-weight: 900;
    letter-spacing: -.04em;
    line-height: 1.08;
    margin-bottom: 24px
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 560px
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-family: var(--font);
    font-size: .9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-decoration: none
}

.btn-primary {
    background: var(--gradient-btn);
    color: #fff;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.25)
}

.btn-primary:hover {
    box-shadow: 0 6px 30px rgba(124, 58, 237, 0.4);
    transform: translateY(-2px);
    color: #fff
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary)
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent-hover);
    background: var(--accent-glow)
}

.btn-sm {
    padding: 8px 18px;
    font-size: .8rem
}

/* ---- Stats Bar ---- */
.stats-bar {
    padding: 48px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-glass)
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: -.03em;
    margin-bottom: 4px
}

.stat-label {
    font-size: .8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .08em
}

/* ---- Tool Cards ---- */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-hero);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s ease
}

.tool-card:hover::before {
    transform: scaleX(1)
}

.tool-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px)
}

.tool-icon {
    font-size: 2rem;
    margin-bottom: 16px
}

.tool-name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px
}

.tool-category {
    font-size: .75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: 12px
}

.tool-desc {
    font-size: .88rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 16px
}

.tool-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border)
}

.tool-price {
    font-size: .8rem;
    color: var(--text-secondary)
}

.tool-rating {
    font-size: .8rem;
    color: #facc15
}

.tool-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .82rem;
    font-weight: 600;
    color: var(--accent-hover);
    margin-top: 12px
}

.tool-link:hover {
    color: #c084fc
}

/* ---- Blog Cards ---- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition)
}

.blog-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px)
}

.blog-thumb {
    height: 180px;
    background: var(--gradient-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
    overflow: hidden
}

.blog-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 50%, var(--bg-card))
}

.blog-body {
    padding: 24px
}

.blog-tag {
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--accent);
    margin-bottom: 10px;
    display: inline-block
}

.blog-title {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 10px
}

.blog-excerpt {
    font-size: .85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px
}

.blog-read {
    font-size: .8rem;
    font-weight: 600;
    color: var(--accent-hover)
}

/* ---- Resources Section ---- */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 48px
}

.resource-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: all var(--transition)
}

.resource-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow)
}

.resource-icon {
    font-size: 2.2rem;
    flex-shrink: 0
}

.resource-name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px
}

.resource-desc {
    font-size: .85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px
}

.resource-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: var(--accent-glow);
    border: 1px solid var(--accent);
    border-radius: var(--radius-full);
    font-size: .78rem;
    font-weight: 600;
    color: var(--accent-hover);
    transition: all var(--transition)
}

.resource-btn:hover {
    background: var(--accent);
    color: #fff
}

/* ---- About Section ---- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-top: 48px
}

.about-text p {
    font-size: .95rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 16px
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px
}

.about-highlight {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center
}

.about-highlight-icon {
    font-size: 1.5rem;
    margin-bottom: 8px
}

.about-highlight-text {
    font-size: .82rem;
    font-weight: 600
}

.about-highlight-sub {
    font-size: .72rem;
    color: var(--text-muted);
    margin-top: 2px
}

.about-image {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    position: relative;
    overflow: hidden
}

.about-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 70%, rgba(124, 58, 237, 0.15), transparent);
    pointer-events: none
}

/* ---- FAQ ---- */
.faq-list {
    max-width: 720px;
    margin: 48px auto 0
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
    transition: all var(--transition)
}

.faq-item:hover {
    border-color: var(--border-hover)
}

.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 600;
    font-size: .95rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-glass);
    transition: background var(--transition)
}

.faq-question:hover {
    background: var(--bg-glass-hover)
}

.faq-arrow {
    transition: transform var(--transition);
    font-size: .8rem;
    color: var(--text-muted)
}

.faq-item.open .faq-arrow {
    transform: rotate(180deg)
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease
}

.faq-item.open .faq-answer {
    max-height: 500px
}

.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: .88rem;
    color: var(--text-secondary);
    line-height: 1.7
}

/* ---- CTA Banner ---- */
.cta-section {
    padding: 100px 0;
    position: relative;
    overflow: hidden
}

.cta-box {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 64px;
    text-align: center;
    position: relative;
    overflow: hidden
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15), transparent);
    pointer-events: none
}

.cta-box h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 16px
}

.cta-box p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto
}

/* ---- Contact ---- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-top: 48px
}

.contact-info-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px
}

.contact-info-icon {
    width: 44px;
    height: 44px;
    background: var(--accent-glow);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0
}

.contact-info-label {
    font-size: .75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .05em
}

.contact-info-value {
    font-size: .9rem;
    font-weight: 600;
    margin-top: 2px
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: .88rem;
    transition: all var(--transition)
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow)
}

.form-textarea {
    min-height: 120px;
    resize: vertical
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted)
}

/* ---- Footer ---- */
.footer {
    padding: 48px 0 24px;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary)
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px
}

.footer-brand {
    font-weight: 800;
    font-size: 1.1rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px
}

.footer-desc {
    font-size: .82rem;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 280px
}

.footer-heading {
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-secondary);
    margin-bottom: 16px
}

.footer-links {
    list-style: none
}

.footer-links li {
    margin-bottom: 8px
}

.footer-links a {
    font-size: .85rem;
    color: var(--text-muted);
    transition: color var(--transition)
}

.footer-links a:hover {
    color: var(--text-primary)
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: .78rem;
    color: var(--text-muted)
}

.footer-socials {
    display: flex;
    gap: 12px
}

.footer-socials a {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: .9rem;
    transition: all var(--transition)
}

.footer-socials a:hover {
    border-color: var(--accent);
    background: var(--accent-glow)
}

/* ---- Disclosure ---- */
.disclosure {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-top: 32px;
    font-size: .78rem;
    color: var(--text-muted);
    line-height: 1.6
}

/* ---- Blog Page ---- */
.blog-page {
    padding-top: 120px
}

.blog-page-header {
    margin-bottom: 48px
}

.blog-page-tag {
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--accent);
    margin-bottom: 12px;
    display: inline-block
}

.blog-page-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -.03em;
    line-height: 1.15;
    margin-bottom: 16px
}

.blog-page-meta {
    font-size: .85rem;
    color: var(--text-muted)
}

.blog-content {
    max-width: 760px;
    margin: 0 auto
}

.blog-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 48px 0 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border)
}

.blog-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 32px 0 12px
}

.blog-content p {
    font-size: .95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px
}

.blog-content ul,
.blog-content ol {
    margin: 16px 0;
    padding-left: 24px
}

.blog-content li {
    font-size: .92rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 8px
}

.blog-content strong {
    color: var(--text-primary);
    font-weight: 600
}

.blog-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0
}

.blog-content th,
.blog-content td {
    padding: 10px 16px;
    border: 1px solid var(--border);
    font-size: .85rem;
    text-align: left
}

.blog-content th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .04em
}

.blog-content blockquote {
    border-left: 3px solid var(--accent);
    padding: 16px 24px;
    margin: 24px 0;
    background: var(--bg-glass);
    border-radius: 0 var(--radius) var(--radius) 0
}

.blog-cta-box {
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    margin: 32px 0
}

.blog-cta-box h3 {
    margin: 0 0 8px;
    font-size: 1.1rem
}

.blog-cta-box p {
    color: var(--text-secondary);
    font-size: .88rem;
    margin-bottom: 16px
}

.blog-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .85rem;
    color: var(--text-muted);
    margin-bottom: 32px
}

.blog-back:hover {
    color: var(--text-primary)
}

/* ---- Animations ---- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all .6s ease
}

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

/* ---- Responsive ---- */
@media(max-width:1024px) {

    .tools-grid,
    .blog-grid {
        grid-template-columns: repeat(2, 1fr)
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr
    }

    .hero h1 {
        font-size: 2.8rem
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr)
    }
}

@media(max-width:768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(6, 8, 15, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border)
    }

    .nav-links.open {
        display: flex
    }

    .nav-toggle {
        display: block
    }

    .hero h1 {
        font-size: 2.2rem
    }

    .section-title {
        font-size: 1.8rem
    }

    .tools-grid,
    .blog-grid,
    .resources-grid {
        grid-template-columns: 1fr
    }

    .hero-buttons {
        flex-direction: column
    }

    .btn {
        width: 100%;
        justify-content: center
    }

    .footer-grid {
        grid-template-columns: 1fr
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr
    }

    .section {
        padding: 64px 0
    }
}