/* 
   MSR STRUKTURBAJA - Industrial Stylesheet
   Design: Dark, Masculine, Professional Engineering
*/

:root {
    --primary: #ff9800; /* Safety Orange */
    --primary2: #c4811d; /* CTA Orange */
    --primary-hover: #e68a00;
    --dark: #0f0f0f; /* Deep Black */
    --charcoal: #1a1a1a; /* Dark Gray */
    --charcoal2: #0f0f0f;
    --white: #ffffff;
    --gray: #a0a0a0;
    --border: rgba(255, 255, 255, 0.08);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, .logo-text, .btn {
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--primary);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 152, 0, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: #000;
}

.btn-wa {
    background-color: #25d366;
    color: var(--white);
    gap: 12px;
    font-size: 1.1rem;
}

/* Floating Contact Buttons - Refined Size */
.floating-contact {
    position: fixed;
    bottom: 25px;
    right: 25px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 9999;
}

.float-btn {
    width: 55px; /* Reduced from 60px */
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: 0 8px 25px rgba(0,0,0,0.4);
    overflow: hidden;
}

.float-wa {
    background-color: #25d366;
    border-radius: 14px; /* Industrial Squircle */
}

.float-wa:hover {
    transform: scale(1.08) translateY(-3px);
    background-color: #20bd5a;
}

.float-phone {
    background-color: var(--dark);
    border: 2px solid var(--primary);
}

.float-phone:hover {
    transform: scale(1.08) translateY(-3px);
    background-color: var(--charcoal);
}

/* Constrain images and SVGs inside floating buttons */
.float-btn img, 
.float-btn svg {
    width: 28px; /* Locked at professional size */
    height: 28px;
    object-fit: contain;
}

/* Navbar */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: var(--transition);
}

#main-header.scrolled {
    background-color: rgba(15, 15, 15, 0.95);
    padding: 12px 0;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--white);
}

.logo img {
    height: 44px;
    width: auto;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
}

.accent { color: var(--primary); }

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray);
    text-decoration: none;
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
}

/* Hero */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    background: url('../Rangka-Baja-2-Hero-Banner.jpg') center/cover no-repeat;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.6) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 850px;
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--gray);
    margin-bottom: 48px;
    max-width: 650px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

/* Sections Global */
section { padding: 120px 0; }

.section-title {
    font-size: 2.8rem;
    margin-bottom: 48px;
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 5px;
    background-color: var(--primary);
}

.section-title.text-center::after {
    left: 50%;
    transform: translateX(-50%);
}

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text p {
    margin-bottom: 24px;
    color: var(--gray);
    font-size: 1.1rem;
}

.stats {
    display: flex;
    gap: 48px;
    margin-top: 40px;
}

.stat-num {
    display: block;
    font-size: 3rem;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--gray);
    text-transform: uppercase;
    font-weight: 700;
}

.about-image img {
    border: 12px solid var(--charcoal);
    box-shadow: 30px 30px 0px rgba(255, 152, 0, 0.1);
    filter: grayscale(20%);
}

/* Services */
.services { background-color: var(--charcoal); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.service-card {
    background-color: var(--dark);
    padding: 48px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-12px);
    background-color: #121212;
}

.service-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
}

.service-card h3 { margin-bottom: 16px; font-size: 1.4rem; }
.service-card p { color: var(--gray); font-size: 1rem; }

/* Features */
.features { background-color: var(--dark); border-top: 1px solid var(--border); }
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}
.feature-item { text-align: center; }
.feature-icon {
    width: 70px;
    height: 70px;
    background-color: var(--charcoal);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 24px;
    font-size: 28px;
    border: 2px solid var(--primary);
}

/* Area */
.area { background-color: var(--charcoal); }
.city-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
}
.city-tags span {
    background-color: var(--dark);
    padding: 12px 24px;
    border: 1px solid var(--border);
    font-weight: 600;
    font-size: 13px;
}

/* Testimonial */
.testimonial { background-color: var(--dark); border-top: 1px solid var(--border); }
.testimonial-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.testimonial-card {
    background-color: var(--charcoal);
    padding: 20px;
    border: 1px solid var(--border);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.testimonial-header {
    margin-bottom: 24px;
}
.quote-icon {
    font-size: 60px;
    color: var(--primary);
    font-family: 'Oswald';
    line-height: 1;
    margin-bottom: -20px;
    opacity: 0.3;
}
.testimonial-card h3 {
    font-size: 1.3rem;
    color: var(--white);
    margin-bottom: 16px;
}
.testimonial-text {
    font-style: italic;
    color: var(--gray);
    margin-bottom: 32px;
    font-size: 1rem;
}
.testimonial-author strong {
    display: block;
    color: var(--primary);
    font-size: 1rem;
    margin-bottom: 4px;
}
.testimonial-author span {
    font-size: 0.9rem;
    color: var(--gray);
}

/* CTA */
.cta { background-color: var(--primary2); color: #000; }
.cta-content h2 { font-size: 3.2rem; margin-bottom: 16px; }
.cta-content p { font-size: 1.4rem; margin-bottom: 40px; font-weight: 500; }
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 40px; }
.phone-info p { font-size: 2.2rem; font-weight: 700; font-family: 'Oswald'; }

/* Footer */
.footer { background-color: var(--dark); padding: 100px 0 0; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}
.footer-brand p { margin-top: 24px; color: var(--gray); max-width: 400px; }
.footer h4 { margin-bottom: 32px; font-size: 1.3rem; }
.footer-links ul li { margin-bottom: 16px; }
.footer-links ul li a { color: var(--gray); text-decoration: none; }
.footer-links ul li a:hover { color: var(--primary); }
.social-icons { display: flex; gap: 16px; }
.social-icons a {
    background-color: var(--charcoal2);
    padding: 6px 6px;
    font-weight: 500;
    color: var(--white);
    text-decoration: none;
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 40px 0;
    text-align: center;
    color: var(--gray);
    font-size: 14px;
}

/* Hamburger */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}
.hamburger span { width: 32px; height: 3px; background-color: var(--white); transition: var(--transition); }

/* Content Pages Specific Styles */
.content-page main article strong {
    color: var(--primary);
}

.content-page main article h3 {
    margin-top: 30px;
    font-family: 'Oswald';
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title { font-size: 3.5rem; }
    .about-grid { grid-template-columns: 1fr; gap: 50px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    #main-header { padding: 16px 0; background-color: var(--dark); }
    .hamburger { display: flex; }
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--dark);
        flex-direction: column;
        align-items: center;
        padding-top: 60px;
        transition: 0.5s;
    }
    .nav-menu.active { left: 0; }
    .hero-title { font-size: 2.8rem; }
    .hero-btns { flex-direction: column; }
    .cta-actions { flex-direction: column; }
    .cta-content h2 { font-size: 2.2rem; 
    .testimonial-grid { grid-template-columns: 1fr; }
    
    /* Mobile Float Refinement */
    .floating-contact { bottom: 20px; right: 20px; gap: 10px; }
    .float-btn { width: 48px; height: 48px; border-radius: 10px; }
    .float-btn img, .float-btn svg { width: 24px; height: 24px; }
    }