/* =========================================
   Variables & Reset
   ========================================= */
:root {
    /* Color Palette */
    --bg-dark: #07070a;
    --bg-darker: #0d0d12;
    --bg-glass: rgba(20, 20, 30, 0.4);
    --border-glass: rgba(255, 255, 255, 0.08);
    
    --primary: #1565C0; /* Steel Blue */
    --primary-hover: #1E88E5;
    --accent: #FF6B35; /* Orange sparks */
    --accent-hover: #FF8A5B;
    
    --text-pure: #ffffff;
    --text-muted: #a0a0b0;
    
    /* Typography */
    --font-heading: 'Bebas Neue', Impact, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Layout */
    --container: 1200px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-muted);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-pure);
    font-weight: normal;
    letter-spacing: 1px;
}

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

img {
    max-width: 100%;
    height: auto;
}

/* =========================================
   Utility Classes
   ========================================= */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 2rem;
}

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

.section {
    padding: 6rem 0;
}

.dark-section { background-color: var(--bg-dark); }
.bg-secondary { background-color: var(--bg-darker); }

.bg-pattern {
    background-color: var(--bg-darker);
    background-image: radial-gradient(var(--border-glass) 1px, transparent 1px);
    background-size: 20px 20px;
}

.border-top-glass { border-top: 1px solid var(--border-glass); }

.section-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.section-desc {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.mb-5 { margin-bottom: 3rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 2rem;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-transform: uppercase;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-pure);
    box-shadow: 0 4px 15px rgba(21, 101, 192, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 6px 20px rgba(21, 101, 192, 0.5);
    transform: translateY(-2px);
    color: var(--text-pure);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-pure);
    border: 2px solid var(--border-glass);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-block {
    width: 100%;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* =========================================
   Navbar
   ========================================= */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 1.5rem 0;
    background: transparent;
}

.glass-nav.scrolled {
    padding: 1rem 0;
    background: rgba(7, 7, 10, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-glass);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--text-pure);
    letter-spacing: 2px;
}

.logo img {
    height: 40px;
    transition: var(--transition);
}

.glass-nav.scrolled .logo img {
    height: 30px;
}

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

.nav-links a:not(.btn) {
    color: var(--text-pure);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding-bottom: 5px;
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.lang-btn {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 0.3rem 0.55rem;
    border-radius: 3px;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-pure);
}

/* Language Switcher — Mobile compact dropdown */
.lang-switcher-mobile {
    display: none;
    position: relative;
}

.lang-current {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--primary);
    border: none;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 0.38rem 0.65rem;
    border-radius: 3px;
    cursor: pointer;
}

.lang-current i {
    font-size: 0.6rem;
    transition: transform 0.2s ease;
}

.lang-switcher-mobile.open .lang-current i {
    transform: rotate(180deg);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: rgba(7, 7, 10, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 6px;
    overflow: hidden;
    z-index: 1200;
    min-width: 60px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    animation: fadeInNav 0.18s ease;
}

.lang-switcher-mobile.open .lang-dropdown {
    display: block;
}

.lang-drop-item {
    display: block;
    width: 100%;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem 0.75rem;
    text-align: center;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 700;
    transition: var(--transition);
}

.lang-drop-item:hover {
    background: rgba(21, 101, 192, 0.25);
    color: var(--text-pure);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-pure);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.4rem;
    z-index: 1100;
    position: relative;
}

/* Mobile nav drawer */
.mobile-nav-open .nav-links {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(7, 7, 10, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    z-index: 1050;
    animation: fadeInNav 0.25s ease;
}

@keyframes fadeInNav {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.mobile-nav-open .nav-links a {
    font-size: 1.8rem !important;
    letter-spacing: 2px;
}

/* =========================================
   Hero Section
   ========================================= */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    /* Hero background fallback if img missing */
    background: url('../assets/img/hero_v2.png') no-repeat center center/cover;
}

/* Sparks Canvas */
#sparks-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(7,7,10,0.95) 0%, rgba(7,7,10,0.4) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
}

.hero-title {
    font-size: 5.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

/* =========================================
   About Section
   ========================================= */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.stats-row {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
}

.stat-box {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 4rem;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 2px;
    color: var(--text-pure);
}

.about-image-wrapper {
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.about-image-placeholder {
    text-align: center;
    opacity: 0.5;
}

.about-image-placeholder h3 {
    margin-top: 1rem;
    font-family: var(--font-heading);
}

/* =========================================
   Services Section
   ========================================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(21, 101, 192, 0.4);
    box-shadow: 0 10px 40px rgba(0,0,0,0.6), inset 0 0 0 1px rgba(21, 101, 192, 0.2);
}

.service-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

/* =========================================
   Certifications
   ========================================= */
.certs-flex {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.cert-badge {
    padding: 1rem 2.5rem;
    background: var(--bg-darker);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 4px;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.5);
    transition: var(--transition);
}

.cert-badge:hover {
    border-color: var(--primary);
    background: rgba(21, 101, 192, 0.05);
}

.cert-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--text-pure);
    letter-spacing: 2px;
}

/* =========================================
   Contact Section
   ========================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-list {
    list-style: none;
    margin-top: 2rem;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-list i {
    font-size: 1.5rem;
    margin-top: 5px;
}

.contact-list div {
    display: flex;
    flex-direction: column;
}

.contact-list strong {
    color: var(--text-pure);
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

/* Form */
.contact-form-wrapper {
    padding: 3rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-pure);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(0,0,0,0.4);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 4px;
    color: var(--text-pure);
    font-family: var(--font-body);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.2);
}

/* =========================================
   Footer
   ========================================= */
.footer {
    padding: 3rem 0;
    background-color: var(--bg-dark);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-logo img {
    height: 30px;
    filter: grayscale(100%) opacity(0.8);
}

/* =========================================
   Responsive Media Queries
   ========================================= */

/* --- Tablet (≤1024px) --- */
@media (max-width: 1024px) {
    .hero-title { font-size: 4.5rem; }
    .section-title { font-size: 3rem; }
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --- Tablet portrait (≤992px) --- */
@media (max-width: 992px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr !important;
    }
    .about-image-wrapper {
        height: 350px;
        order: -1; /* show image first on tablet */
    }
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-title { font-size: 3.8rem; }
    .stats-row { gap: 2rem; }
}

/* --- Mobile landscape / small tablet (≤768px) --- */
@media (max-width: 768px) {
    /* Navigation */
    .nav-links {
        display: none;
    }
    .menu-toggle {
        display: block;
    }

    /* Language switcher: hide desktop pills, show compact dropdown */
    .lang-switcher-desktop {
        display: none;
    }
    .lang-switcher-mobile {
        display: block;
    }

    /* Hero */
    .hero-section {
        justify-content: center;
        text-align: center;
        background-position: 60% center;
    }
    .hero-title { font-size: 3rem; }
    .hero-subtitle { font-size: 1rem; margin-bottom: 2rem; }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .hero-buttons .btn { width: 100%; max-width: 320px; }

    /* Sections */
    .section { padding: 4rem 0; }
    .section-title { font-size: 2.4rem; }
    .section-desc { font-size: 1rem; }

    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
    }

    /* About image */
    .about-image-wrapper {
        height: 280px;
        order: -1;
    }

    /* Stats */
    .stats-row {
        flex-wrap: wrap;
        gap: 1.5rem;
    }

    /* Portfolio grid — override inline minmax that breaks on mobile */
    [style*="minmax(450px"] {
        grid-template-columns: 1fr !important;
    }

    /* Parallax banner — background-attachment:fixed breaks on iOS */
    .parallax-banner {
        background-attachment: scroll !important;
        height: 250px !important;
    }

    /* Services marquee banner — allow wrapping */
    .services-banner p {
        white-space: normal !important;
        font-size: 0.9rem !important;
        line-height: 1.8;
    }
    .services-banner .text-accent {
        display: inline !important;
        margin: 0 6px !important;
    }

    /* Contact form */
    .contact-form-wrapper { padding: 1.8rem 1.2rem; }

    /* Logo text */
    .logo-text { font-size: 1.4rem; }
    .logo img { height: 32px; }

    /* Footer */
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* --- Mobile portrait (≤480px) --- */
@media (max-width: 480px) {
    .container { padding: 0 1rem; }
    .hero-title { font-size: 2.4rem; }
    .section-title { font-size: 2rem; }
    .hero-overlay {
        /* On very small screens darken more for readability */
        background: linear-gradient(180deg, rgba(7,7,10,0.92) 0%, rgba(7,7,10,0.6) 100%);
    }
    .stat-number { font-size: 3rem; }
    .cert-badge { padding: 0.8rem 1.5rem; }
    .btn { font-size: 1rem; padding: 0.75rem 1.5rem; }
    .contact-list li { gap: 1rem; }
    /* Glass panels with heavy padding */
    .contact-form-wrapper,
    [style*="padding: 3rem"] {
        padding: 1.5rem 1rem !important;
    }

    /* Safety for extra narrow screens */
    @media (max-width: 400px) {
        .logo-text { display: none; }
        .logo { gap: 0.5rem; }
    }
}