/* ==========================================================================
   STYLE SHEET: Ebisa Fufi - Business Development & Strategy Portfolio
   Design Philosophy: Premium Dark Mode, Luxurious Editorial Layout
   Inspiration: chucklepley.com (Matte Graphite, Sage Green Accents, Clean Grid)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. System Design Tokens & Theme Setup
   -------------------------------------------------------------------------- */
:root {
    /* Backgrounds */
    --bg-main: #121315;       /* Matte charcoal black */
    --bg-card: #1a1c1e;       /* Graphite grey cards */
    --bg-header: rgba(18, 19, 21, 0.85); /* Sticky nav blur background */
    --bg-input: #1f2124;      /* Dark input background */
    
    /* Accents */
    --accent-sage: #cbd7c6;   /* Sage/Mint green accent */
    --accent-sage-hover: #b9c7b4;
    --accent-sage-dim: rgba(203, 215, 198, 0.08);
    --accent-sage-glow: rgba(203, 215, 198, 0.15);
    
    /* Typography */
    --text-pure: #ffffff;      /* High contrast titles */
    --text-primary: #e2e4e9;   /* Standard reading text */
    --text-secondary: #9ea3ae; /* Muted summaries & subheadings */
    --text-muted: #626875;     /* Dark text metadata / label roles */
    
    /* Borders & Shadows */
    --border-fine: rgba(255, 255, 255, 0.06);
    --border-active: rgba(203, 215, 198, 0.2);
    --shadow-premium: 0 16px 48px rgba(0, 0, 0, 0.4);
    
    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-mono: 'Fira Code', 'JetBrains Mono', monospace;
    
    --transition-precise: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   2. Reset & Core Structure
   -------------------------------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-main);
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-main);
    line-height: 1.65;
    overflow-x: hidden;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
    background: #282a2e;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-precise);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --------------------------------------------------------------------------
   3. Navigation Header
   -------------------------------------------------------------------------- */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--bg-header);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-fine);
    transition: var(--transition-precise);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.nav-brand {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-pure);
}

.brand-sub {
    color: var(--accent-sage);
    font-weight: 400;
    font-size: 0.8rem;
    margin-left: 5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.2rem;
}

.nav-links a {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-links a.active {
    color: var(--text-pure);
    font-weight: 600;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1.5px;
    background-color: var(--accent-sage);
}

.nav-actions {
    display: flex;
    align-items: center;
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.3rem;
    color: var(--text-primary);
    background: none;
    border: none;
    cursor: pointer;
}

/* Mobile Nav Drawer */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-main);
    border-left: 1px solid var(--border-fine);
    z-index: 99;
    display: flex;
    flex-direction: column;
    padding: 120px 2rem 2rem 2rem;
    gap: 2rem;
    transition: cubic-bezier(0.16, 1, 0.3, 1) 0.4s;
}

.mobile-nav.open {
    right: 0;
}

.mobile-nav-link {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-fine);
    padding-bottom: 0.8rem;
}

.mobile-nav-link:hover {
    color: var(--text-pure);
}

/* --------------------------------------------------------------------------
   4. Hero Section (Split Executive Layout)
   -------------------------------------------------------------------------- */
.hero-section {
    padding: 160px 0 100px 0;
    border-bottom: 1px solid var(--border-fine);
}

.hero-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 5rem;
    align-items: center;
}

/* Portrait Card layout (Chuck Lepley style) */
.hero-portrait-col {
    display: flex;
    justify-content: flex-start;
}

.portrait-card {
    width: 100%;
    max-width: 350px;
    background: var(--bg-card);
    border: 1px solid var(--border-fine);
    padding: 1rem;
    border-radius: 20px;
    box-shadow: var(--shadow-premium);
    transition: var(--transition-precise);
}

.portrait-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-active);
}

.portrait-image-wrapper {
    width: 100%;
    aspect-ratio: 0.85;
    overflow: hidden;
    border-radius: 14px;
}

.portrait-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(0.15);
    transition: var(--transition-precise);
}

.portrait-card:hover .portrait-image {
    filter: grayscale(0);
    transform: scale(1.02);
}

/* Hero Content */
.hero-content-col {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-tagline {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent-sage);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.hero-headline {
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text-pure);
    margin-bottom: 1.8rem;
}

.hero-headline em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 500;
    color: var(--accent-sage);
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    line-height: 1.7;
}

.hero-description strong {
    color: var(--text-pure);
}

.hero-buttons {
    display: flex;
    gap: 1.2rem;
    margin-top: 1.8rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-precise);
}

.btn-primary {
    background: var(--accent-sage);
    color: #121315;
}

.btn-primary:hover {
    background: var(--accent-sage-hover);
    box-shadow: 0 4px 20px var(--accent-sage-glow);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   5. Visual Portfolio Section (Featured Cards Grid)
   -------------------------------------------------------------------------- */
.portfolio-section {
    padding: 100px 0;
    border-bottom: 1px solid var(--border-fine);
}

.grid-header {
    margin-bottom: 3.5rem;
}

.meta-indicator {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent-sage);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.6rem;
}

.sub-section-title {
    font-size: 2.2rem;
    color: var(--text-pure);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.8rem;
}

.portfolio-card {
    background: var(--bg-card);
    border: 1px solid var(--border-fine);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    transition: var(--transition-precise);
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    border-color: var(--border-active);
    transform: translateY(-5px);
}

.card-image-wrapper {
    width: 100%;
    aspect-ratio: 1.5;
    overflow: hidden;
    border-bottom: 1px solid var(--border-fine);
    background: var(--bg-main);
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-precise);
}

.portfolio-card:hover .card-image {
    transform: scale(1.03);
}

.card-body {
    padding: 2.2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-pure);
    margin-bottom: 0.5rem;
}

.card-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    line-height: 1.5;
}

.card-role {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: auto;
    border-top: 1px solid var(--border-fine);
    padding-top: 1.2rem;
}

/* --------------------------------------------------------------------------
   6. Strategic Insights (3-Column Layout)
   -------------------------------------------------------------------------- */
.insights-section {
    padding: 100px 0;
    border-bottom: 1px solid var(--border-fine);
}

.insights-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3.5rem;
    margin-top: 1rem;
}

.insight-column {
    display: flex;
    flex-direction: column;
}

.insight-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-pure);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.insight-intro {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    line-height: 1.6;
}

.insight-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.insight-list li {
    font-size: 0.88rem;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
    line-height: 1.5;
}

.insight-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   7. Client Testimonials (Sleek Quotes & Graphic Grid)
   -------------------------------------------------------------------------- */
.testimonials-section {
    padding: 100px 0;
    border-bottom: 1px solid var(--border-fine);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3.5rem;
    margin-bottom: 4rem;
}

.testimonial-card {
    display: flex;
    flex-direction: column;
    position: relative;
}

.quote-symbol {
    font-family: var(--font-serif);
    font-size: 5rem;
    line-height: 1;
    color: var(--accent-sage-dim);
    margin-bottom: -1.5rem;
    user-select: none;
}

.quote-text {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-style: italic;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 1.8rem;
}

.quote-author {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: auto;
}

.quote-author strong {
    color: var(--text-pure);
}

/* Visual graphics row under quotes */
.testimonials-graphics {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2.2rem;
    margin-top: 1rem;
}

.graphic-wrapper {
    height: 320px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-fine);
}

.graphic-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(0.15);
}

/* --------------------------------------------------------------------------
   8. Contact & Asynchronous Strategy Connection Section
   -------------------------------------------------------------------------- */
.connection-section {
    padding: 100px 0;
    border-bottom: 1px solid var(--border-fine);
}

.portfolio-cta-center {
    display: flex;
    justify-content: center;
    margin-bottom: 6rem;
}

.connection-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: flex-start;
}

.connection-info-col {
    display: flex;
    flex-direction: column;
}

.connection-headline {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-pure);
    margin-bottom: 1.2rem;
}

.connection-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.connection-desc strong {
    color: var(--text-pure);
}

.info-links-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-link-item {
    display: flex;
    flex-direction: column;
}

.info-link-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.info-link-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-pure);
}

.info-link-value a:hover {
    color: var(--accent-sage);
}

/* Connection Form Container */
.connection-form-container {
    background: var(--bg-card);
    border: 1px solid var(--border-fine);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-premium);
}

.editorial-form {
    display: flex;
    flex-direction: column;
}

.form-heading {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-pure);
    margin-bottom: 1.8rem;
    border-bottom: 1px solid var(--border-fine);
    padding-bottom: 0.8rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 1.2rem;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.form-group input, .form-group textarea {
    background: var(--bg-input);
    border: 1px solid var(--border-fine);
    padding: 12px 16px;
    font-size: 0.85rem;
    color: var(--text-primary);
    border-radius: 8px;
    transition: var(--transition-precise);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent-sage);
    outline: none;
    background: #1e2023;
}

.form-status {
    margin-top: 1.2rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-align: center;
}

.form-status.success { color: var(--accent-sage); }
.form-status.error { color: #f48c8c; }

.direct-email-fallback {
    margin-top: 1.8rem;
    border-top: 1px solid var(--border-fine);
    padding-top: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.direct-mail-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-sage);
    font-weight: 600;
}

.direct-mail-btn:hover {
    color: var(--text-pure);
    text-decoration: underline;
}

/* --------------------------------------------------------------------------
   9. Monochrome Partner Logos Bar
   -------------------------------------------------------------------------- */
.partner-logos-section {
    padding: 60px 0;
    border-bottom: 1px solid var(--border-fine);
}

.logos-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2.5rem;
}

.logo-item {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-muted);
    font-family: var(--font-sans);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: var(--transition-precise);
}

.logo-item:hover {
    color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   10. Footer Section
   -------------------------------------------------------------------------- */
footer {
    padding: 4rem 0;
    background: var(--bg-main);
}

.footer-layout {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.8rem;
}

.footer-brand {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-pure);
}

.footer-copy {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.footer-meta-links {
    display: flex;
    gap: 1.5rem;
    font-size: 0.72rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.footer-meta-links a:hover {
    color: var(--accent-sage);
}

/* --------------------------------------------------------------------------
   11. Responsive Adaptation
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }
    
    .hero-portrait-col {
        justify-content: center;
    }
    
    .portrait-card {
        max-width: 380px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .insights-columns {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .connection-layout {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .logos-container {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-headline {
        font-size: 2.2rem;
    }
    
    .sub-section-title {
        font-size: 1.7rem;
    }
    
    .connection-headline {
        font-size: 1.7rem;
    }
    
    .connection-form-container {
        padding: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .testimonials-graphics {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .graphic-wrapper {
        height: 240px;
    }
}