/* 
 * COMPLETE FUSION WELDING - MODERN SAAS THEME
 * Colors: Deep Navy, Electric Blue, White, Glass Effects
 */

:root {
    --primary: #2563eb; /* Electric Blue */
    --primary-dark: #1e40af;
    --accent: #f59e0b; /* Amber/Spark */
    --dark: #0f172a; /* Navy Slate */
    --darker: #020617;
    --light: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: 12px;
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --font-main: 'Inter', sans-serif;
    --font-head: 'Space Grotesk', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--darker);
    color: var(--light);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-head);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- UTILITIES --- */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px -10px rgba(37, 99, 235, 0.2);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.6);
    transform: scale(1.05);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: white;
    color: var(--dark);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.sub-title {
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    font-weight: 700;
    display: block;
    margin-bottom: 10px;
}

/* --- NAVIGATION --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.glass-nav {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    font-family: var(--font-head);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.95rem;
    opacity: 0.8;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--primary);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 2px;
}

/* --- HERO SECTION --- */
.hero {
    position: relative;
    padding: 180px 0 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg-shapes .shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    animation: float 10s infinite ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    opacity: 0.3;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    bottom: 10%;
    left: -50px;
    opacity: 0.2;
    animation-delay: 2s;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text {
    font-size: 1.2rem;
    color: #cbd5e1;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.trust-bar {
    display: flex;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: #94a3b8;
}

.trust-item i {
    color: var(--primary);
}

/* --- STATS --- */
.stats-section {
    padding: 4rem 0;
    margin-top: -50px;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: white;
    font-family: var(--font-head);
    display: inline;
}

.stat-suffix {
    font-size: 2rem;
    color: var(--primary);
    font-weight: 700;
    display: inline;
}

.stat-label {
    color: #94a3b8;
    margin-top: 5px;
    font-size: 0.9rem;
}

/* --- SERVICES --- */
.services-section {
    padding: 6rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card .card-icon {
    width: 60px;
    height: 60px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.card-features {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--glass-border);
}

.card-features li {
    font-size: 0.85rem;
    color: #94a3b8;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-features i {
    color: var(--accent);
    font-size: 0.7rem;
}

/* --- PROCESS TIMELINE --- */
.process-section {
    padding: 6rem 0;
    background: rgba(255, 255, 255, 0.02);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--glass-border);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 2rem;
}

.timeline-icon {
    position: absolute;
    left: 10px;
    top: 0;
    width: 42px;
    height: 42px;
    background: var(--dark);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--primary);
    z-index: 2;
}

.timeline-content h3 {
    margin-bottom: 0.5rem;
    color: white;
}

/* --- ARTICLE SECTION --- */
.content-section {
    padding: 6rem 0;
}

.article-layout {
    max-width: 900px;
}

.main-article {
    padding: 3rem;
}

.main-article h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: white;
}

.main-article h2 {
    font-size: 1.8rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.main-article h3 {
    font-size: 1.4rem;
    margin-top: 2rem;
    margin-bottom: 0.8rem;
    color: #e2e8f0;
}

.main-article p {
    margin-bottom: 1.5rem;
    color: #cbd5e1;
    font-size: 1.05rem;
}

.inline-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: rgba(37, 99, 235, 0.3);
}

.inline-link:hover {
    text-decoration-color: var(--primary);
}

.callout-box {
    background: rgba(37, 99, 235, 0.1);
    border-left: 4px solid var(--primary);
    padding: 1.5rem;
    border-radius: 0 12px 12px 0;
    margin: 2rem 0;
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.callout-box i {
    font-size: 1.5rem;
    color: var(--accent);
    margin-top: 3px;
}

.checklist li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: #cbd5e1;
}

.checklist i {
    color: var(--accent);
}

/* --- TESTIMONIALS --- */
.testimonials-section {
    padding: 6rem 0;
}

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

.stars {
    color: var(--accent);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.client-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--glass-border);
}

.avatar {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 0.9rem;
}

.client-info strong {
    display: block;
    color: white;
}

.client-info span {
    font-size: 0.8rem;
    color: #94a3b8;
}

/* --- FAQ --- */
.faq-section {
    padding: 6rem 0;
    background: rgba(255, 255, 255, 0.02);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    padding: 0;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem 2rem;
    text-align: left;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-head);
}

.faq-question i {
    transition: var(--transition);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 2rem;
    color: #cbd5e1;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 1.5rem;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* --- CONTACT --- */
.contact-section {
    padding: 6rem 0;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.info-item {
    display: flex;
    gap: 15px;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.info-item i {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.info-item strong {
    display: block;
    color: white;
    margin-bottom: 2px;
}

.info-item a, .info-item span {
    color: #94a3b8;
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: #cbd5e1;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: white;
    font-family: var(--font-main);
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
}

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

/* --- FOOTER --- */
.site-footer {
    background: #020617;
    padding: 4rem 0 0;
    border-top: 1px solid var(--glass-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    padding-bottom: 3rem;
}

.brand-col h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-col p {
    color: #94a3b8;
    font-size: 0.95rem;
}

.footer-col h4 {
    color: white;
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a, .footer-col ul li {
    color: #94a3b8;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 1rem;
}

.social-icons a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.social-icons a:hover {
    background: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.85rem;
    color: #64748b;
}

.footer-bottom p:last-child {
    margin-top: 5px;
}

.footer-bottom a {
    color: #94a3b8;
}

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

.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* --- RESPONSIVE --- */
@media (max-width: 992px) {
    .hero h1 { font-size: 2.8rem; }
    .contact-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateX(100%);
        transition: var(--transition);
        border-bottom: 1px solid var(--glass-border);
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .mobile-toggle {
        display: flex;
    }

    .hero { padding-top: 140px; min-height: auto; }
    .hero h1 { font-size: 2.2rem; }
    .hero-btns { flex-direction: column; }
    .trust-bar { flex-direction: column; gap: 1rem; }
    
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    
    .main-article { padding: 1.5rem; }
    .main-article h1 { font-size: 1.8rem; }
}

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