/* Neblina Tech V2.0 Design System */

:root {
    /* Color Palette - Sovereign AI Theme */
    --bg-base: #0a0b10;
    --bg-surface: #13141c;
    --bg-surface-elevated: #1a1c29;
    --primary: #5A6A9D;
    --primary-glow: #647ec9;
    --secondary: #2C3558;
    --accent: #00d2ff;
    --accent-glow: rgba(0, 210, 255, 0.4);

    --text-primary: #ffffff;
    --text-secondary: #9aa4b8;
    --text-muted: #5e6b89;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;

    /* Layout Tokens */
    --container-max-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Borders */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --border-color: rgba(255, 255, 255, 0.05);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
html, body {
    overflow-x: hidden;
    width: 100%;
}

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

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

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

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

/* Typography elements */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: 1.5rem;
}

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

.text-accent-gradient {
    background: linear-gradient(135deg, var(--accent) 0%, #3a7bd5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: var(--spacing-md);
    margin-inline: auto;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* Layout */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

.section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

/* Background Effects */
.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(0, 0, 0, 0) 70%);
    top: -200px;
    left: -200px;
    z-index: -1;
    filter: blur(80px);
    opacity: 0.5;
    pointer-events: none;
    max-width: 100vw;
}

.bg-glow-right {
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(90, 106, 157, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    bottom: -200px;
    right: -200px;
    z-index: -1;
    filter: blur(100px);
    pointer-events: none;
    max-width: 100vw;
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: all var(--transition-normal);
}

@media (max-width: 768px) {
    .header {
        padding: var(--spacing-sm) 0;
        background: rgba(10, 11, 16, 0.9);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
}

.header.scrolled {
    padding: var(--spacing-sm) 0;
    background: rgba(10, 11, 16, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 70px;
    height: 70px;
    object-fit: contain;
}

@media (max-width: 480px) {
    .logo-img {
        width: 35px;
        height: 35px;
    }
}

.logo-text {
    height: 32px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

@media (max-width: 480px) {
    .logo-text {
        height: 20px;
    }
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

/* Language Dropdown */
.lang-switcher {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.lang-switcher img {
    width: 18px;
    border-radius: 2px;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    padding: 8px 0;
    width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
}

.lang-switcher:hover .lang-dropdown,
.lang-switcher:focus-within .lang-dropdown,
.lang-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font-sans);
    text-align: left;
    transition: background var(--transition-fast);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

/* Mobile Menu */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(90deg, #3a7bd5 0%, #3a6073 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(58, 123, 213, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(58, 123, 213, 0.4);
}

.btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--spacing-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* Services Grid */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-inline: auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: var(--spacing-md);
}

.products-grid {
    grid-template-columns: repeat(2, 1fr) !important;
}

@media (max-width: 900px) {
    .products-grid {
        grid-template-columns: 1fr 1fr !important;
    }
}

@media (max-width: 600px) {
    .products-grid {
        grid-template-columns: 1fr !important;
    }
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
}

.lang-btn-small {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 4px;
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn-small:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.footer-grid a:hover {
    color: var(--accent) !important;
}

.service-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(800px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.06), transparent 40%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    font-size: 1.8rem;
    color: var(--accent);
}

.service-card h3 {
    margin-bottom: 8px;
}

.service-slogan {
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
    flex-grow: 1;
}

.service-value {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.service-value strong {
    color: var(--text-secondary);
}

/* Animation Utils */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.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;
}


/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.contact-form-wrapper {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 0 2px rgba(90, 106, 157, 0.2);
}

.w-full {
    width: 100%;
}

.contact-info-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    height: 100%;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-method:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--primary-glow);
}

.text-blue-400 {
    color: #60a5fa;
}

.text-green-400 {
    color: #4ade80;
}

.text-cyan-400 {
    color: #22d3ee;
}

.contact-detail {
    display: flex;
    flex-direction: column;
}

.contact-detail .label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.social-icons-row {
    display: flex;
    gap: 12px;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-icon:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mt-8 {
    margin-top: 2rem;
}

.mt-12 {
    margin-top: 3rem;
}

.ml-2 {
    margin-left: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        background: var(--bg-surface-elevated);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        border-bottom: 1px solid var(--border-color);
        display: none !important;
        box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        z-index: 1001; /* Ensure it's above other elements */
    }

    .nav-links.active {
        display: flex !important;
    }

    .mobile-toggle {
        display: block;
        margin-left: 8px;
    }

    .lang-switcher {
        padding: 4px 6px;
        gap: 4px;
    }

    .lang-switcher img {
        width: 16px;
    }

    .hero {
        min-height: 80vh;
    }

    h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* Final Mobile Overrides */
@media (max-width: 768px) {
    html, body {
        overflow-x: hidden !important;
    }

    .header-actions {
        gap: 6px !important;
    }
    
    #current-lang-text, 
    .lang-switcher span, 
    .lang-switcher .fa-chevron-down {
        display: none !important;
    }

    .logo-text {
        height: 18px !important;
    }
}