/* ============================================
   QUAFORGE LLC — Corporate Website Styles
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --color-primary: #0F172A;
    --color-primary-light: #1E293B;
    --color-primary-lighter: #334155;
    --color-accent: #FF9900;
    --color-accent-hover: #E68A00;
    --color-accent-glow: rgba(255, 153, 0, 0.15);
    --color-success: #10B981;
    --color-bg: #F8FAFC;
    --color-bg-alt: #F1F5F9;
    --color-text: #0F172A;
    --color-text-muted: #64748B;
    --color-text-light: #94A3B8;
    --color-white: #FFFFFF;
    --color-border: #E2E8F0;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --container-max: 1200px;
    --header-height: 72px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 30px rgba(255, 153, 0, 0.15);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

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

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
    background: rgba(15, 23, 42, 0.97);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon-img {
    height: 42px;
    width: 42px;
    object-fit: contain;
    border-radius: 8px;
    transition: transform var(--transition);
}

.logo-text {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: 3px;
    color: var(--color-white);
    transition: color var(--transition);
}

.logo:hover .logo-icon-img {
    transform: scale(1.05);
}

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

.footer .logo-icon-img {
    height: 36px;
    width: 36px;
}

.footer .logo-text {
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.08);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 2px;
    transition: transform var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-toggle .bar {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition);
}

.mobile-toggle.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.mobile-toggle.active .bar:nth-child(2) {
    opacity: 0;
}
.mobile-toggle.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(255, 153, 0, 0.3);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 153, 0, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, #0F172A 0%, #1a1f3a 40%, #1E293B 100%);
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255, 153, 0, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(255, 153, 0, 0.03) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { opacity: 0.7; }
    100% { opacity: 1; }
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border: 1px solid rgba(255, 153, 0, 0.06);
    border-radius: 50%;
    animation: heroCircle 20s linear infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border: 1px solid rgba(255, 153, 0, 0.04);
    border-radius: 50%;
    animation: heroCircle 15s linear infinite reverse;
}

@keyframes heroCircle {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-tagline {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--color-accent);
    margin-bottom: 20px;
    padding: 6px 20px;
    border: 1px solid rgba(255, 153, 0, 0.25);
    border-radius: 50px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.hero-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.6);
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* --- Hero Animations --- */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}
.animate-in:nth-child(1) { animation-delay: 0.2s; }
.animate-in:nth-child(2) { animation-delay: 0.4s; }
.animate-in:nth-child(3) { animation-delay: 0.6s; }
.animate-in:nth-child(4) { animation-delay: 0.8s; }
.animate-in:nth-child(5) { animation-delay: 1.0s; }

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

/* --- Section Shared Styles --- */
section {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 12px;
    padding: 4px 16px;
    background: var(--color-accent-glow);
    border-radius: 50px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* --- Reveal Animation --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* --- About Section --- */
.about {
    background: var(--color-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.about-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-success));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.about-card:hover {
    border-color: rgba(255, 153, 0, 0.2);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

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

.about-card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--color-accent-glow);
    color: var(--color-accent);
    margin-bottom: 20px;
}

.about-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.about-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.about-signature {
    text-align: center;
    margin-top: 48px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 1px;
}

/* --- Products Section --- */
.products {
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.products::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 10% 90%, rgba(255, 153, 0, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 10%, rgba(16, 185, 129, 0.04) 0%, transparent 40%);
}

.products .section-title {
    color: var(--color-white);
}

.products .section-desc {
    color: rgba(255, 255, 255, 0.5);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.product-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(255, 153, 0, 0.08), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}

.product-card:hover {
    border-color: rgba(255, 153, 0, 0.3);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

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

.product-card-icon {
    color: var(--color-accent);
    margin-bottom: 24px;
    transition: transform var(--transition);
}

.product-card:hover .product-card-icon {
    transform: scale(1.1);
}

.product-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.product-card p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.product-card-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-accent);
    padding: 4px 14px;
    border: 1px solid rgba(255, 153, 0, 0.3);
    border-radius: 50px;
    position: relative;
    z-index: 1;
}

/* --- Why Choose Us --- */
.why-us {
    background: var(--color-bg);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.why-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.why-card:hover {
    border-color: rgba(255, 153, 0, 0.2);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.why-card-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: rgba(255, 153, 0, 0.1);
    line-height: 1;
    margin-bottom: 16px;
    transition: color var(--transition);
}

.why-card:hover .why-card-number {
    color: rgba(255, 153, 0, 0.2);
}

.why-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 14px;
}

.why-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* --- Contact Section --- */
.contact {
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 70%, rgba(255, 153, 0, 0.04) 0%, transparent 50%);
}

.contact .section-title {
    color: var(--color-white);
}

.contact .section-desc {
    color: rgba(255, 255, 255, 0.5);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: start;
    position: relative;
    z-index: 1;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-family);
    font-size: 0.95rem;
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.1);
}

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

.contact-info-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 36px;
    display: flex;
    flex-direction: column;
    gap: 28px;
    backdrop-filter: blur(10px);
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--color-accent-glow);
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-info-item h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.contact-info-item p,
.contact-info-item a {
    font-size: 0.95rem;
    color: var(--color-white);
    line-height: 1.6;
}

.contact-info-item a:hover {
    color: var(--color-accent);
}

/* --- Footer --- */
.footer {
    background: #0a0f1e;
    padding: 48px 0 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.9rem;
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: 28px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 24px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.3);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    section {
        padding: 80px 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 32px 32px;
        gap: 4px;
        transition: right var(--transition);
        border-left: 1px solid rgba(255, 255, 255, 0.06);
    }

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

    .nav-link {
        font-size: 1rem;
        padding: 14px 18px;
    }

    .about-grid,
    .why-us-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .product-card {
        padding: 30px 24px;
    }

    .about-card,
    .why-card {
        padding: 28px;
    }

    .contact-info-card {
        padding: 24px;
    }
}