/* ==========================================================================
   TALKINK BRANDING & TYPOGRAPHY SYSTEM - PREMIUM HARDCORE EDITION
   Core Palette: Professional Dark (#020617) & Cyber Cyan Accent (#38bdf8)
   Layout Philosophy: Immersive Full-Screen UI, Fluid Structural Grids
   ========================================================================== */

/* 1. Global Reset & Performance Theme Variables */
:root {
    --bg-primary: #020617;        /* Core application dark grid canvas */
    --bg-secondary: #0f172a;      /* Modular container layers */
    --bg-surface: #1e293b;        /* Feature box interaction points */
    --text-primary: #f8fafc;      /* Pure crisp reading metrics */
    --text-secondary: #94a3b8;    /* Smooth scanning description arrays */
    --text-muted: #64748b;        /* Technical micro markers */
    --accent-cyan: #38bdf8;       /* System signature accent logic */
    --accent-glow: rgba(56, 189, 248, 0.12);
    --border-color: #334155;      /* Strict interface line separations */
    --border-focus: #475569;
    
    /* Dynamic Premium Typography Scales */
    --font-primary: 'Plus Jakarta Sans', -apple-system, sans-serif;
    --font-display: 'Space Grotesk', -apple-system, sans-serif;
    --fs-h2: 28px;
    --fs-h3: 20px;
    --fs-body: 15.5px;
    --fs-meta: 13px;
    --padding-inline: 6%;         /* Fluid variable for edge-to-edge screens */
}

/* 2. Document Smooth Reset Configuration */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    width: 100%;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.75;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding: 40px 0 0 0;        /* Removed restrictive body padding */
    overflow-x: hidden;
    width: 100%;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(56, 189, 248, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(99, 102, 241, 0.04) 0%, transparent 40%);
}

/* 3. Main Structural Glassmorphism Container (Fitted for Full-Screen) */
#about-container {
    max-width: 100% !important;   /* Breaks the 1000px rigid lock box */
    width: 92%;                   /* Gives a premium breathing margin from screen borders */
    margin: 0 auto 60px auto;
    background-color: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 24px;
    padding: 60px var(--padding-inline); /* Responsive inline padding scale */
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8), 
                inset 0 1px 1px rgba(255, 255, 255, 0.08);
    box-sizing: border-box;
}

/* 4. Top Header Block (Single Line Navigation Layer) */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    width: 100%;
}

.logo-area {
    display: flex;
    align-items: center;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 30px;
    font-weight: 700;
    letter-spacing: -0.04em;
    text-transform: lowercase;
    color: var(--text-primary);
    position: relative;
    background: linear-gradient(135deg, #ffffff 60%, var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text::after {
    content: '.';
    color: var(--accent-cyan);
    -webkit-text-fill-color: var(--accent-cyan);
}

.doc-badge-area {
    display: flex;
    align-items: center;
}

.doc-tag {
    font-size: var(--fs-meta);
    font-weight: 600;
    color: var(--accent-cyan);
    background-color: var(--accent-glow);
    border: 1px solid rgba(56, 189, 248, 0.2);
    padding: 6px 16px;
    border-radius: 30px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 10px rgba(56, 189, 248, 0.05);
}

.icon-space {
    margin-right: 8px;
}

/* 5. Structural Separators with Subtle Gradient Fade */
.section-divider {
    border: 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(51, 65, 85, 0.6) 0%, rgba(51, 65, 85, 0.1) 100%);
    margin: 48px 0;
    width: 100%;
}

/* 6. Section Engineering & Typography Elements */
.section {
    padding: 20px 0;
    width: 100%;
}

h2 {
    font-family: var(--font-display);
    font-size: var(--fs-h2);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-primary);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 14px;
    line-height: 1.3;
}

.section-icon {
    color: var(--accent-cyan);
    font-size: 24px;
    filter: drop-shadow(0 0 8px var(--accent-cyan));
}

.content-block {
    margin-bottom: 32px;
    width: 100%;
}

h3 {
    font-size: var(--fs-h3);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

p, .feature-desc {
    font-size: var(--fs-body);
    color: var(--text-secondary);
    text-align: justify;
    margin-bottom: 20px;
}

p strong {
    color: var(--accent-cyan);
    font-weight: 600;
}

.section-desc {
    margin-bottom: 36px;
    font-size: var(--fs-body);
    font-style: normal;
    color: var(--text-muted);
    border-left: 2px solid var(--border-color);
    padding-left: 14px;
}

/* 7. Dynamic Graphic Banner Component */
.hero-banner-wrapper {
    width: 100%;
    height: 200px;
    border-radius: 16px;
    margin-bottom: 40px;
    background: linear-gradient(135deg, #0f172a 0%, #020617 100%);
    border: 1px solid rgba(56, 189, 248, 0.25);
    box-shadow: inset 0 0 40px rgba(56, 189, 248, 0.08);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding: 40px;
    box-sizing: border-box;
}

.hero-banner-wrapper::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -5%;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-graphic-overlay h4 {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 12px;
    letter-spacing: -0.01em;
}

.banner-badge {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent-cyan);
    background-color: rgba(56, 189, 248, 0.12);
    padding: 6px 12px;
    border-radius: 20px;
    letter-spacing: 0.06em;
    border: 1px solid rgba(56, 189, 248, 0.25);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* 8. Fully Responsive Grid Matrix (Optimized stretch layout for broad monitors) */
.feature-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(440px, 1fr)); /* Autofit matrix distribution system */
    gap: 32px;
    width: 100%;
}

.feature-item {
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.3) 0%, rgba(15, 23, 42, 0.4) 100%);
    border: 1px solid rgba(51, 65, 85, 0.5);
    border-radius: 16px;
    padding: 36px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
}

.full-width {
    grid-column: 1 / -1; /* Flawless edge stretch handling */
}

.feature-icon-wrapper {
    width: 52px;
    height: 52px;
    background-color: #070d19;
    border: 1px solid rgba(51, 65, 85, 0.8);
    color: var(--accent-cyan);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 24px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.feature-item:hover {
    border-color: rgba(56, 189, 248, 0.5);
    background: linear-gradient(145deg, rgba(30, 41, 59, 0.45) 0%, rgba(15, 23, 42, 0.6) 100%);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 25px rgba(56, 189, 248, 0.08);
}

.feature-item:hover .feature-icon-wrapper {
    color: #020617;
    background-color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px var(--accent-cyan);
    transform: scale(1.05);
}

.feature-title {
    font-size: var(--fs-h3);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

/* Sub-List Setup inside high-density reader cards */
.sub-feature-list {
    list-style: none;
    margin-top: 24px;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.sub-feature-list li {
    font-size: var(--fs-body);
    color: var(--text-secondary);
    line-height: 1.6;
}

.list-bullet {
    color: var(--accent-cyan);
    font-size: 11px;
    margin-right: 8px;
}

/* 9. Premium Founder Component Architecture */
.founder-commitment-container {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(2, 6, 23, 0.95) 100%);
    border: 1px solid rgba(56, 189, 248, 0.3);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), inset 0 0 24px rgba(56, 189, 248, 0.05);
    border-radius: 20px;
    padding: 44px;
    margin: 44px 0;
    width: 100%;
    box-sizing: border-box;
}

.founder-profile-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 36px;
}

/* CEO Frame Config with Animated Glow Core Ring */
.founder-avatar-frame {
    position: relative;
    width: 130px;
    height: 130px;
    flex-shrink: 0;
}

.founder-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 2;
}

.avatar-glow-ring {
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(135deg, var(--accent-cyan), #6366f1, transparent);
    border-radius: 20px;
    z-index: 1;
    opacity: 0.6;
    animation: spinRing 8s linear infinite;
}

@keyframes spinRing {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.founder-quote-content {
    flex-grow: 1;
    position: relative;
}

.quote-bracket-icon {
    position: absolute;
    top: -12px;
    left: -16px;
    font-size: 36px;
    color: rgba(56, 189, 248, 0.15);
}

.vision-statement {
    font-style: italic;
    color: var(--text-primary);
    font-size: 16.5px;
    line-height: 1.85;
    margin-bottom: 20px;
    text-align: justify;
}

.founder-signature-block {
    display: block;
    font-style: normal;
}

.founder-name {
    font-family: var(--font-display);
    font-size: var(--fs-h3);
    color: var(--accent-cyan);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.founder-title {
    font-size: var(--fs-meta);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    display: block;
    margin-top: 4px;
}

/* 10. Contact Gateways & Technical Communication Block */
.contact-channels-wrapper {
    font-style: normal;
    margin-top: 24px;
}

.support-channels-list {
    list-style: none;
}

.support-channels-list li strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 10px;
}

.scope-text-block {
    font-size: var(--fs-body);
    color: var(--text-secondary);
}

.support-email-link {
    color: var(--accent-cyan);
    font-family: monospace;
    font-size: 16px;
    font-weight: 700;
    background-color: #070d19;
    padding: 8px 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.support-email-link:hover {
    border-color: var(--accent-cyan);
    background-color: var(--accent-glow);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.25);
    transform: translateX(4px);
}

/* ==========================================================================
   11. CSS Performance Keyframes & Micro-Animations Modules
   ========================================================================== */
.animate-fade-in {
    animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-pulse-subtle {
    animation: pulseSubtle 4s ease-in-out infinite;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulseSubtle {
    0%, 100% { border-color: rgba(56, 189, 248, 0.25); box-shadow: inset 0 0 40px rgba(56, 189, 248, 0.08); }
    50% { border-color: rgba(56, 189, 248, 0.45); box-shadow: inset 0 0 50px rgba(56, 189, 248, 0.18); }
}

.reveal-on-scroll {
    animation: revealSetup both;
    animation-timeline: view();
    animation-range: entry 5% cover 25%;
}

@keyframes revealSetup {
    from { opacity: 0; transform: translateY(24px); filter: blur(1px); }
    to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

/* ==========================================================================
   12. Fully Responsive Media Queries (Adaptive Breakdown Layouts)
   ========================================================================== */
@media (max-width: 1200px) {
    .feature-matrix {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    #about-container {
        width: 95%;
        padding: 40px 24px;
        margin-bottom: 40px;
    }

    :root {
        --fs-h2: 24px;
        --fs-h3: 18px;
        --fs-body: 14.5px;
        --padding-inline: 4%;
    }

    .feature-matrix {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .full-width {
        grid-column: span 1;
    }

    .sub-feature-list {
        grid-template-columns: 1fr;
        gap: 14px;
    }
}

@media (max-width: 600px) {
    #about-container {
        width: 100%;
        border-radius: 0px; /* Snaps flat perfectly on mobile screens */
        border-left: none;
        border-right: none;
        padding: 32px 16px;
    }

    :root {
        --fs-h2: 21px;
        --fs-h3: 16.5px;
        --fs-body: 14px;
        --fs-meta: 12px;
    }

    .top-bar {
        flex-direction: row; 
        align-items: center;
    }

    .logo-text {
        font-size: 24px;
    }

    .doc-tag {
        font-size: 10.5px;
        padding: 5px 12px;
    }

    .hero-banner-wrapper {
        height: 140px;
        padding: 24px;
        margin-bottom: 28px;
    }

    .hero-graphic-overlay h4 {
        font-size: 19px;
    }

    .founder-profile-wrapper {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 24px;
    }

    .founder-avatar-frame {
        width: 110px;
        height: 110px;
    }

    .quote-bracket-icon {
        display: none; 
    }

    p, .feature-desc {
        text-align: left; 
    }
}

/* ==========================================================================
   13. HYPER-MOTION GLOBAL CORE FOOTER (FULL SCREEN LOCK)
   ========================================================================== */
.ti-core-footer {
    --f-navy: #020617;
    --f-accent: #6366f1;
    --f-glow: #a855f7;
    --f-white: #f8fafc;
    --f-border: rgba(255, 255, 255, 0.04);
    --f-surface: #070b19;
    
    background: linear-gradient(180deg, var(--f-navy) 0%, var(--f-surface) 100%);
    border-top: 1px solid var(--f-border);
    padding: 60px var(--padding-inline) 20px var(--padding-inline);
    position: relative;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
    margin-top: 80px;
}

.footer-laser-line {
    position: absolute;
    top: -1px; left: 0; width: 100%; height: 1px;
    background: linear-gradient(90deg, transparent, var(--f-accent), var(--f-glow), transparent);
    background-size: 200% auto;
    animation: footerLaserShift 6s linear infinite;
}
@keyframes footerLaserShift { 0% { background-position: 0% center; } 100% { background-position: 200% center; } }

.footer-container {
    max-width: 100%;               /* Sync footer container to break box limits */
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr;
    gap: 40px;
    box-sizing: border-box;
}

.footer-brand-section .footer-logo {
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--f-white);
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.footer-brand-section .footer-logo .logo-dot {
    color: var(--f-accent);
}
.footer-tagline {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 360px;
    margin-bottom: 24px;
}

.footer-heading {
    font-family: var(--font-display);
    font-size: 0.85rem;
    text-transform: uppercase;
    color: #475569;
    letter-spacing: 1px;
    margin-bottom: 20px;
    font-weight: 700;
}
.links-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.app-link-node {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid transparent;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.app-link-node .link-icon {
    color: #475569;
    font-size: 1rem;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s;
}
.app-link-node:hover {
    background: rgba(99, 102, 241, 0.06);
    color: var(--f-white);
    border-color: rgba(99, 102, 241, 0.15);
    transform: translateX(4px);
}
.app-link-node:hover .link-icon {
    color: var(--f-accent);
    transform: scale(1.2) rotate(-5deg);
}

.footer-social-grid {
    display: flex;
    gap: 12px;
}
.social-node {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--f-border);
    color: #94a3b8;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.15rem;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.social-node:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.4);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.2);
}

.footer-meta-bar {
    max-width: 100%; 
    margin: 40px auto 0 auto;
    padding: 20px 0 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    display: flex; 
    justify-content: space-between;
    color: #334155; font-size: 0.8rem; font-weight: 500;
}

@media (max-width: 768px) {
    .ti-core-footer {
        padding: 40px 20px;
    }
    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }
    .footer-brand-section .footer-tagline {
        margin: 12px auto 24px auto;
    }
    .footer-social-grid {
        justify-content: center;
    }
    .links-grid {
        align-items: center;
    }
    .app-link-node {
        width: 100%;
        max-width: 280px;
        justify-content: flex-start;
    }
    .footer-meta-bar {
        text-align: center;
        flex-direction: column;
        gap: 12px;
        justify-content: center;
    }
}