/* CSS Stylesheet for Inventeon Technologies Landing Page - Strategic Hybrid Theme Matrix */

:root {
    --primary: #D32F2F; /* Crimson Red from Logo */
    --primary-dark: #B71C1C;
    --primary-glow: rgba(211, 47, 47, 0.2);
    
    /* Logo-Matching Canvas Colors (Header/Footer Specific) */
    --logo-bg: #FFFFFF; 
    --logo-text: #0F172A;
    --logo-text-muted: #475569;
    --logo-border: #E2E8F0;

    /* Content Area Premium Dark-Tech Theme (No Logo Present) */
    --content-bg: #0B0E14; 
    --content-surface: #121824;
    --content-surface-accent: #1C2436;
    --content-text: #F3F4F6;
    --content-text-muted: #9CA3AF;
    --content-border: #263147;

    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Logo Image Properties */
.brand-logo-img {
    height: 48px;
    width: auto;
    display: block;
    object-fit: contain;
}

/* Global Typography Elements */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 0.5px;
}

h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--content-text);
}

h2 {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--content-text);
}

h3 {
    color: var(--content-text);
}

p {
    color: var(--content-text-muted);
    margin-bottom: 16px;
}

.text-gradient {
    color: var(--primary);
    background: linear-gradient(45deg, #FF5252, #D32F2F);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Structural Grid System */
.grid {
    display: grid;
    gap: 32px;
}
@media (min-width: 768px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* Button Blueprint Elements */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 4px;
    font-family: var(--font-body);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
}

.btn-primary {
    background-color: var(--primary);
    color: #FFFFFF;
}
.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 0 20px var(--primary-glow);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--content-border);
    color: var(--content-text);
}
.btn-outline:hover {
    border-color: var(--primary);
    background-color: rgba(211, 47, 47, 0.05);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ==========================================================================
   HEADER / NAVBAR (Perfect Logo Match: Light Background)
   ========================================================================== */
.navbar {
    background-color: var(--logo-bg);
    border-bottom: 1px solid var(--logo-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 12px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-item {
    color: var(--logo-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.navbar .btn-primary {
    color: #FFFFFF !important;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--logo-text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   CONTENT PORTION (Premium Dark Tech Theme)
   ========================================================================== */
.hero {
    position: relative;
    padding: 120px 0;
    background-color: var(--content-bg);
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(211, 47, 47, 0.15) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.hero-container {
    display: flex;
    flex-direction: column;
    gap: 48px;
    position: relative;
    z-index: 1;
}

@media (min-width: 992px) {
    .hero-container {
        flex-direction: row;
        align-items: center;
    }
    .hero-content { flex: 1.2; }
    .hero-visual { flex: 0.8; }
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--content-surface-accent);
    border: 1px solid var(--content-border);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 24px;
    font-weight: 500;
}

.hero-content p {
    font-size: 1.15rem;
    margin-bottom: 36px;
    color: var(--content-text-muted);
}

/* Tech Orbit Visual Widget */
.tech-stack-visual {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.circle {
    position: absolute;
    border: 1px dashed var(--content-border);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.core-glow {
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(211, 47, 47, 0.25) 0%, transparent 70%);
    border: none;
}

.orbit-1 {
    width: 220px;
    height: 220px;
    animation: rotateCW 25s linear infinite;
}

.orbit-2 {
    width: 300px;
    height: 300px;
    animation: rotateCCW 35s linear infinite;
}

.shield-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3.5rem;
    color: var(--primary);
    filter: drop-shadow(0 0 15px var(--primary));
}

.tech-icon {
    position: absolute;
    background: var(--content-surface-accent);
    border: 1px solid var(--content-border);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--content-text);
    font-size: 0.95rem;
}

.orbit-1 .tech-icon:nth-child(1) { top: 0; left: 50%; transform: translate(-50%, -50%); }
.orbit-1 .tech-icon:nth-child(2) { bottom: 0; left: 50%; transform: translate(-50%, 50%); }
.orbit-2 .tech-icon:nth-child(1) { top: 25%; left: 5%; }
.orbit-2 .tech-icon:nth-child(2) { top: 25%; right: 5%; }
.orbit-2 .tech-icon:nth-child(3) { bottom: 5%; left: 50%; transform: translateX(-50%); }

@keyframes rotateCW { 100% { transform: translate(-50%, -50%) rotate(360deg); } }
@keyframes rotateCCW { 100% { transform: translate(-50%, -50%) rotate(-360deg); } }

/* Sections */
.pillars-section, .trust-section, .contact-section {
    padding: 100px 0;
    border-top: 1px solid var(--content-border);
    background-color: var(--content-bg);
}

.pillars-section {
    background-color: var(--content-surface);
}

.section-header {
    max-width: 650px;
    margin: 0 auto 60px auto;
}

/* Cards Blueprint */
.card {
    background-color: var(--content-bg);
    border: 1px solid var(--content-border);
    border-radius: 6px;
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
}

.card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.pillar-card.featured {
    background-color: var(--content-surface-accent);
    border-color: rgba(211, 47, 47, 0.4);
}

.card-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background-color: var(--primary);
    color: #FFFFFF;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-icon {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 24px;
}

.card h3 {
    font-size: 1.35rem;
    margin-bottom: 16px;
}

.card-list {
    list-style: none;
    margin: 24px 0;
}

.card-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    color: var(--content-text);
}

.card-list li i {
    color: #4CAF50;
    font-size: 0.8rem;
}

.card-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.card-link:hover {
    gap: 12px;
}

/* Trust Elements */
.section-tag {
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 12px;
}

.shield-graphic-large {
    position: relative;
    width: 200px;
    height: 200px;
    background-color: var(--content-surface);
    border: 1px solid var(--content-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.large-shield-icon {
    font-size: 5rem;
    color: var(--primary);
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: pulseGlow 3s infinite;
}

@keyframes pulseGlow {
    0% { transform: scale(0.95); opacity: 0.5; }
    100% { transform: scale(1.3); opacity: 0; }
}

.metric-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 40px;
    border-top: 1px solid var(--content-border);
    padding-top: 32px;
}

.metric-item h4 {
    font-size: 1.8rem;
    color: #FFFFFF;
}
.metric-item p {
    font-size: 0.85rem;
    color: var(--content-text-muted);
}

/* Vendor Showcase Panel */
.partner-banner {
    background-color: #06080C;
    padding: 40px 0;
    border-top: 1px solid var(--content-border);
}

.partner-title {
    font-size: 0.75rem;
    letter-spacing: 2px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--content-text-muted);
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
    color: var(--content-text-muted);
    font-size: 1.1rem;
}

.partner-logos span i {
    margin-right: 6px;
}

/* Contact Module Grid */
.contact-box {
    background-color: var(--content-surface);
    border: 1px solid var(--content-border);
    border-radius: 8px;
    overflow: hidden;
}

.contact-info {
    padding: 50px;
    background: linear-gradient(135deg, var(--content-surface-accent) 0%, var(--content-bg) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.info-list {
    margin-top: 32px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    color: var(--content-text);
}

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

.contact-form-wrapper {
    padding: 50px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--content-text);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--content-bg);
    border: 1px solid var(--content-border);
    border-radius: 4px;
    color: var(--content-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 8px rgba(211, 47, 47, 0.25);
}

.form-feedback {
    margin-top: 16px;
    padding: 12px;
    border-radius: 4px;
    font-size: 0.9rem;
    text-align: center;
}

.form-feedback.success {
    background-color: rgba(76, 175, 80, 0.15);
    border: 1px solid #4CAF50;
    color: #4CAF50;
}

.hidden { display: none; }

/* ==========================================================================
   FOOTER (Perfect Logo Match: Light Background)
   ========================================================================== */
footer {
    background-color: var(--logo-bg);
    border-top: 1px solid var(--logo-border);
    padding: 60px 0 30px 0;
}

footer h4, footer .brand-title {
    color: var(--logo-text);
}

footer p, footer .footer-desc {
    color: var(--logo-text-muted);
}

.footer-grid {
    display: grid;
    gap: 40px;
    margin-bottom: 40px;
}

@media (min-width: 768px) {
    .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

.footer-desc {
    font-size: 0.9rem;
    margin-top: 16px;
    max-width: 320px;
}

.footer-links h4 {
    font-size: 0.95rem;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.footer-links a {
    display: block;
    color: var(--logo-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 10px;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--logo-border);
    padding-top: 30px;
    font-size: 0.8rem;
    color: var(--logo-text-muted);
}

/* Responsive Adaptive Interface Breakpoints */
@media (max-width: 767px) {
    h1 { font-size: 2rem; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--logo-bg);
        padding: 24px;
        border-bottom: 1px solid var(--logo-border);
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }
    .nav-links.active {
        display: flex;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .contact-box {
        grid-template-columns: 1fr;
    }
    .contact-info, .contact-form-wrapper {
        padding: 32px 24px;
    }
    .metric-row {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}