/* ==========================================
   JDBTRADE.COM - COMPLETE STYLESHEET
   Production-Ready CSS for Landing Page
   ========================================== */

/* ==========================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ========================================== */
:root {
    /* Color Palette */
    --color-navy-dark: #0F1629;
    --color-navy-medium: #1a2332;
    --color-navy-light: #2a3444;
    --color-gold: #FFD700;
    --color-gold-hover: #FFC700;
    --color-blue: #3B9FFF;
    --color-blue-hover: #2B8FEF;
    --color-white: #FFFFFF;
    --color-gray-light: #E5E7EB;
    --color-gray-medium: #9CA3AF;
    --color-gray-dark: #4B5563;

    /* Typography */
    --font-primary: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow-gold: 0 0 20px rgba(255, 215, 0, 0.3);
    --shadow-glow-blue: 0 0 20px rgba(59, 159, 255, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    /* Z-Index Layers */
    --z-background: -1;
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-secondary);
    background-color: var(--color-navy-dark);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* ==========================================
   BACKGROUND EFFECTS
   ========================================== */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
    opacity: 0.05;
    background-image: 
        linear-gradient(30deg, var(--color-blue) 12%, transparent 12.5%, transparent 87%, var(--color-blue) 87.5%, var(--color-blue)),
        linear-gradient(150deg, var(--color-blue) 12%, transparent 12.5%, transparent 87%, var(--color-blue) 87.5%, var(--color-blue)),
        linear-gradient(30deg, var(--color-blue) 12%, transparent 12.5%, transparent 87%, var(--color-blue) 87.5%, var(--color-blue)),
        linear-gradient(150deg, var(--color-blue) 12%, transparent 12.5%, transparent 87%, var(--color-blue) 87.5%, var(--color-blue));
    background-size: 80px 140px;
    background-position: 0 0, 0 0, 40px 70px, 40px 70px;
}

.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
    background: radial-gradient(ellipse at top, rgba(59, 159, 255, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at bottom, rgba(255, 215, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* ==========================================
   TOP NAVIGATION (FIXED HEADER)
   ========================================== */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(15, 22, 41, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.75rem 2rem;
}

.top-nav-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.top-nav-logo img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    box-shadow: var(--shadow-glow-gold);
}

.top-nav-logo span {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-btn {
    padding: 0.625rem 1.5rem;
    background: linear-gradient(135deg, var(--color-gold) 0%, #FFA500 100%);
    color: var(--color-navy-dark);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-glow-gold);
    border: 2px solid transparent;
}

.login-btn:hover {
    background: linear-gradient(135deg, #FFA500 0%, var(--color-gold) 100%);
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
}

/* ==========================================
   SIDE NAVIGATION (LEFT SIDEBAR)
   ========================================== */
.side-nav {
    position: fixed;
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: var(--z-sticky);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: rgba(26, 35, 50, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1.5rem 1rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-xl);
}

.side-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--color-gray-light);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    position: relative;
}

.side-nav a i {
    font-size: 1.125rem;
    width: 20px;
    text-align: center;
}

.side-nav a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, var(--color-gold) 0%, var(--color-blue) 100%);
    border-radius: var(--radius-full);
    transition: height var(--transition-base);
}

.side-nav a:hover,
.side-nav a.active {
    color: var(--color-gold);
    background: rgba(255, 215, 0, 0.1);
}

.side-nav a.active::before {
    height: 70%;
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 10;
}

.hero-logo {
    width: 280px;
    height: 280px;
    margin: 0 auto 2rem;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-logo img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    box-shadow: 0 0 60px rgba(255, 215, 0, 0.4),
                0 0 100px rgba(59, 159, 255, 0.2);
    border: 4px solid rgba(255, 215, 0, 0.3);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--color-gold) 0%, #FFA500 50%, var(--color-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(255, 215, 0, 0.3);
    letter-spacing: -0.02em;
}

.hero-tagline {
    font-size: 1.5rem;
    color: var(--color-blue);
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-gray-light);
    line-height: 1.8;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gold);
    display: block;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--color-gold) 0%, #FFA500 100%);
    color: var(--color-navy-dark);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 1.125rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-glow-gold);
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(255, 215, 0, 0.6);
    background: linear-gradient(135deg, #FFA500 0%, var(--color-gold) 100%);
}

/* ==========================================
   SECTION STYLES (SHARED)
   ========================================== */
section {
    padding: 5rem 2rem;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-light);
    line-height: 1.7;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* ==========================================
   ABOUT NGL SECTION
   ========================================== */
.about {
    background: linear-gradient(180deg, transparent 0%, rgba(26, 35, 50, 0.4) 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.about-card {
    background: rgba(26, 35, 50, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-blue) 100%);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.about-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 215, 0, 0.3);
    box-shadow: var(--shadow-glow-gold);
}

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

.about-card-icon {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 1rem;
}

.about-card h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.about-card p {
    color: var(--color-gray-light);
    line-height: 1.7;
}

/* ==========================================
   PRODUCTS SECTION
   ========================================== */
.products {
    background: transparent;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.product-card {
    background: linear-gradient(135deg, rgba(26, 35, 50, 0.8) 0%, rgba(42, 52, 68, 0.6) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.product-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 215, 0, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), var(--shadow-glow-gold);
}

.product-card:hover::after {
    opacity: 1;
}

.product-icon {
    font-size: 3rem;
    color: var(--color-blue);
    margin-bottom: 1.5rem;
    display: block;
}

.product-card h3 {
    font-family: var(--font-primary);
    font-size: 1.375rem;
    margin-bottom: 0.75rem;
    color: var(--color-white);
}

.product-card p {
    color: var(--color-gray-light);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* ==========================================
   ROADMAP TIMELINE SECTION
   ========================================== */
.roadmap {
    background: linear-gradient(180deg, rgba(26, 35, 50, 0.4) 0%, transparent 100%);
    padding: 6rem 2rem;
}

.timeline {
    position: relative;
    max-width: 1200px;
    margin: 4rem auto 0;
    padding: 3rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--color-blue) 20%, 
        var(--color-gold) 50%, 
        var(--color-blue) 80%, 
        transparent 100%);
    transform: translateY(-50%);
}

.timeline-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    position: relative;
}

.timeline-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-blue) 100%);
    border-radius: 50%;
    border: 4px solid var(--color-navy-dark);
    position: relative;
    z-index: 2;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
    margin-bottom: 2rem;
}

.timeline-content {
    background: rgba(26, 35, 50, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-base);
    width: 100%;
}

.timeline-content:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 215, 0, 0.4);
    box-shadow: var(--shadow-glow-gold);
}

.timeline-quarter {
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timeline-content h3 {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--color-white);
    line-height: 1.3;
}

.timeline-content p {
    color: var(--color-gray-light);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact {
    background: transparent;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background: rgba(26, 35, 50, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-base);
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 159, 255, 0.4);
    box-shadow: var(--shadow-glow-blue);
}

.contact-icon {
    font-size: 2.5rem;
    color: var(--color-blue);
    margin-bottom: 1rem;
}

.contact-card h3 {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-white);
}

.contact-card a {
    color: var(--color-gray-light);
    text-decoration: none;
    transition: color var(--transition-base);
}

.contact-card a:hover {
    color: var(--color-blue);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(59, 159, 255, 0.1);
    border: 1px solid rgba(59, 159, 255, 0.3);
    border-radius: 50%;
    color: var(--color-blue);
    font-size: 1.5rem;
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: rgba(59, 159, 255, 0.2);
    border-color: var(--color-blue);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-blue);
}

/* ==========================================
   FOOTER
   ========================================== */
footer {
    background: rgba(15, 22, 41, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 2rem 1.5rem;
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--color-gold);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--color-gray-light);
    text-decoration: none;
    transition: color var(--transition-base);
    font-size: 0.9375rem;
}

.footer-section ul li a:hover {
    color: var(--color-blue);
}

.footer-section p {
    color: var(--color-gray-light);
    line-height: 1.7;
    font-size: 0.9375rem;
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--color-gray-medium);
    font-size: 0.875rem;
}

/* ==========================================
   SCROLL ANIMATIONS
   ========================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

/* Tablets and Small Desktops (≤ 1024px) */
@media (max-width: 1024px) {
    .side-nav {
        left: 1rem;
        padding: 1rem 0.75rem;
    }

    .side-nav a span {
        display: none;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .section-title {
        font-size: 2.5rem;
    }
}

/* Tablets Portrait (≤ 768px) */
@media (max-width: 768px) {
    .top-nav {
        padding: 0.5rem 1rem;
    }

    .top-nav-logo img {
        width: 50px;
        height: 50px;
    }

    .top-nav-logo span {
        font-size: 1rem;
    }

    .login-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .side-nav {
        display: none;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .hero-logo {
        width: 200px;
        height: 200px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-tagline {
        font-size: 1.125rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .stat-value {
        font-size: 2rem;
    }

    section {
        padding: 3rem 1.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .about-grid,
    .products-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .timeline::before {
        display: none;
    }

    .timeline-items {
        grid-template-columns: 1fr;
    }

    .timeline-dot {
        margin-bottom: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Mobile Devices (≤ 480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
        letter-spacing: -0.01em;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .hero-logo {
        width: 160px;
        height: 160px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .cta-button {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .product-card,
    .about-card,
    .contact-card {
        padding: 1.5rem;
    }

    .timeline-content {
        padding: 1.25rem;
    }
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.text-center {
    text-align: center;
}

.text-gradient-gold {
    background: linear-gradient(135deg, var(--color-gold) 0%, #FFA500 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-blue {
    background: linear-gradient(135deg, var(--color-blue) 0%, #1E90FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   PRINT STYLES
   ========================================== */
@media print {
    .top-nav,
    .side-nav,
    .cta-button,
    .login-btn {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .bg-pattern,
    .bg-gradient {
        display: none;
    }
}