/* ============================================
   AIR GAP INTEL - Design System & Styles
   Art Deco Industrial / Defense Contractor Aesthetic
   ============================================ */

/* CSS Variables */
:root {
    --bg-dark: #0a1628;
    --gold-accent: #d4a84b;
    --gold-hover: #e5bc6a;
    --secondary-blue: #1e3a5f;
    --muted-blue: #162a46;
    --text-light: #f0f4f8;
    --text-muted: #8899a6;
    --border-color: #2a4a6f;
    --gradient-dark: linear-gradient(135deg, #0a1628 0%, #162a46 100%);
    --gradient-card: linear-gradient(180deg, #1e3a5f 0%, #162a46 100%);
    --shadow-gold: 0 0 30px rgba(212, 168, 75, 0.15);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.3);
    --transition-fast: 0.2s ease;
    --transition-med: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.7;
    font-size: 16px;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: Georgia, 'Times New Roman', serif;
    font-weight: normal;
    line-height: 1.3;
    color: var(--text-light);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: 0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: 0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--gold-hover);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-med);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: Georgia, serif;
    font-size: 1.5rem;
    color: var(--text-light);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gold-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.logo-icon svg {
    width: 22px;
    height: 22px;
    fill: var(--bg-dark);
}

.logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text .company {
    font-size: 1.25rem;
    color: var(--text-light);
}

.logo-text .tagline {
    font-size: 0.7rem;
    color: var(--gold-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* Main Navigation */
.nav-main {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-main a {
    color: var(--text-muted);
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-main a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold-accent);
    transition: width var(--transition-med);
}

.nav-main a:hover,
.nav-main a.active {
    color: var(--text-light);
}

.nav-main a:hover::after,
.nav-main a.active::after {
    width: 100%;
}

/* Products Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.nav-dropdown-toggle svg {
    width: 12px;
    height: 12px;
    fill: currentColor;
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-toggle svg {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    background: var(--secondary-blue);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    margin-top: 0.5rem;
    box-shadow: var(--shadow-card);
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.nav-dropdown-menu a {
    display: block;
    padding: 0.75rem 1.25rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.nav-dropdown-menu a:hover {
    background: var(--muted-blue);
    color: var(--gold-accent);
}

.nav-dropdown-menu a::after {
    display: none;
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    background: none;
    border: none;
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-light);
    transition: all var(--transition-fast);
}

/* ============================================
   HERO SECTIONS
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(212, 168, 75, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(30, 58, 95, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

/* Art Deco geometric pattern overlay */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(90deg, transparent 49.5%, rgba(212, 168, 75, 0.03) 49.5%, rgba(212, 168, 75, 0.03) 50.5%, transparent 50.5%),
        linear-gradient(0deg, transparent 49.5%, rgba(212, 168, 75, 0.03) 49.5%, rgba(212, 168, 75, 0.03) 50.5%, transparent 50.5%);
    background-size: 60px 60px;
    pointer-events: none;
    opacity: 0.5;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(212, 168, 75, 0.1);
    border: 1px solid var(--gold-accent);
    border-radius: 30px;
    font-size: 0.85rem;
    color: var(--gold-accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

.hero h1 {
    margin-bottom: 1.5rem;
}

.hero h1 .highlight {
    color: var(--gold-accent);
    display: block;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

/* Product Hero (smaller) */
.hero-product {
    min-height: 60vh;
    padding-top: 100px;
}

.hero-product h1 {
    font-size: clamp(2rem, 4vw, 3rem);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-med);
    text-decoration: none;
}

.btn-primary {
    background: var(--gold-accent);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: var(--gold-hover);
    color: var(--bg-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

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

.btn-secondary:hover {
    background: var(--text-light);
    color: var(--bg-dark);
}

.btn-outline {
    background: transparent;
    color: var(--gold-accent);
    border: 2px solid var(--gold-accent);
}

.btn-outline:hover {
    background: var(--gold-accent);
    color: var(--bg-dark);
}

.btn-sm {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-label {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--gold-accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.section-header h2 {
    margin-bottom: 1.5rem;
}

.section-header p {
    font-size: 1.1rem;
}

/* Alternating section backgrounds */
.section-dark {
    background: var(--bg-dark);
}

.section-darker {
    background: linear-gradient(180deg, var(--muted-blue) 0%, var(--bg-dark) 100%);
}

.section-accent {
    background: var(--secondary-blue);
    position: relative;
}

.section-accent::before,
.section-accent::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--gold-accent), transparent);
}

.section-accent::before {
    top: 0;
}

.section-accent::after {
    bottom: 0;
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all var(--transition-med);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--gold-accent);
    box-shadow: var(--shadow-gold);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: rgba(212, 168, 75, 0.1);
    border: 1px solid var(--gold-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.card-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--gold-accent);
}

.card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card h4 {
    margin-bottom: 0.75rem;
    color: var(--text-light);
}

/* Product Card */
.product-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card .card-content {
    flex: 1;
}

.product-card .card-footer {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

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

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* ============================================
   PROBLEM SECTION
   ============================================ */
.problem-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: rgba(30, 58, 95, 0.3);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.stat-number {
    font-family: Georgia, serif;
    font-size: 3.5rem;
    color: var(--gold-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-muted);
}

/* ============================================
   SOLUTION / ROLES SECTION
   ============================================ */
.roles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.role-card {
    text-align: center;
    padding: 3rem 2rem;
}

.role-card .card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
}

.role-card .card-icon svg {
    width: 36px;
    height: 36px;
}

.role-title {
    font-family: Georgia, serif;
    font-size: 1.5rem;
    color: var(--gold-accent);
    margin-bottom: 1rem;
}

/* ============================================
   HUMAN IN THE LOOP SECTION
   ============================================ */
.hitl-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hitl-visual {
    position: relative;
}

.hitl-diagram {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
    text-align: center;
}

.hitl-flow {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hitl-step {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: rgba(10, 22, 40, 0.5);
    border-radius: 8px;
    border-left: 3px solid var(--gold-accent);
}

.hitl-step-number {
    width: 32px;
    height: 32px;
    background: var(--gold-accent);
    color: var(--bg-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.875rem;
}

.hitl-step-text {
    color: var(--text-light);
    font-size: 0.95rem;
}

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

.hitl-points li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-muted);
}

.hitl-points li svg {
    width: 20px;
    height: 20px;
    fill: var(--gold-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

/* ============================================
   PRODUCTS GRID
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.product-card-link {
    text-decoration: none;
    display: block;
    height: 100%;
}

.product-card-link .card {
    height: 100%;
}

.product-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(212, 168, 75, 0.15);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--gold-accent);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

/* ============================================
   BANNER
   ============================================ */
.banner {
    background: var(--gold-accent);
    padding: 2rem;
    text-align: center;
}

.banner-text {
    font-family: Georgia, serif;
    font-size: 1.5rem;
    color: var(--bg-dark);
    letter-spacing: 0.1em;
    font-weight: normal;
}

/* ============================================
   FEATURES LIST
   ============================================ */
.features-list {
    list-style: none;
}

.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-muted);
}

.features-list li svg {
    width: 20px;
    height: 20px;
    fill: var(--gold-accent);
    flex-shrink: 0;
    margin-top: 3px;
}

/* ============================================
   PRODUCT PAGE SPECIFIC
   ============================================ */
.product-intro {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.product-features {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
}

.product-features h3 {
    margin-bottom: 1.5rem;
    color: var(--gold-accent);
}

.how-it-works {
    counter-reset: step;
}

.how-step {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    position: relative;
}

.how-step::before {
    counter-increment: step;
    content: counter(step);
    width: 48px;
    height: 48px;
    background: var(--gold-accent);
    color: var(--bg-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: Georgia, serif;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.how-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 23px;
    top: 56px;
    width: 2px;
    height: calc(100% - 16px);
    background: var(--border-color);
}

.how-step-content h4 {
    margin-bottom: 0.5rem;
}

.highlight-box {
    background: linear-gradient(135deg, rgba(212, 168, 75, 0.1) 0%, rgba(30, 58, 95, 0.3) 100%);
    border: 1px solid var(--gold-accent);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    margin-top: 2rem;
}

.highlight-box .big-text {
    font-family: Georgia, serif;
    font-size: 2rem;
    color: var(--gold-accent);
    margin-bottom: 0.5rem;
}

/* ============================================
   ABOUT PAGE
   ============================================ */
.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.team-card {
    padding: 3rem;
}

.team-card-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.team-avatar {
    width: 80px;
    height: 80px;
    background: var(--gradient-card);
    border: 2px solid var(--gold-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.team-avatar svg {
    width: 40px;
    height: 40px;
    fill: var(--gold-accent);
}

.team-info h3 {
    margin-bottom: 0.25rem;
    font-size: 1.5rem;
}

.team-info .role {
    color: var(--gold-accent);
    font-size: 0.95rem;
}

.team-credentials {
    list-style: none;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.team-credentials li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.team-credentials li svg {
    width: 16px;
    height: 16px;
    fill: var(--gold-accent);
}

.mission-statement {
    font-family: Georgia, serif;
    font-size: 1.75rem;
    text-align: center;
    color: var(--text-light);
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.5;
    padding: 3rem 2rem;
}

.mission-statement span {
    color: var(--gold-accent);
}

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

.contact-form {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 576px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-light);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold-accent);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Consent Checkboxes */
.form-consent {
    margin-bottom: 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    margin-bottom: 1rem;
    position: relative;
    padding-left: 32px;
}

.checkbox-label:last-child {
    margin-bottom: 0;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    left: 0;
    top: 2px;
    height: 20px;
    width: 20px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.checkbox-label:hover .checkmark {
    border-color: var(--gold-accent);
}

.checkbox-label input:checked ~ .checkmark {
    background: var(--gold-accent);
    border-color: var(--gold-accent);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid var(--primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-label input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-text {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.checkbox-text a {
    color: var(--gold-accent);
    text-decoration: none;
}

.checkbox-text a:hover {
    text-decoration: underline;
}

.contact-info h3 {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    background: rgba(212, 168, 75, 0.1);
    border: 1px solid var(--gold-accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--gold-accent);
}

.contact-item-content h4 {
    margin-bottom: 0.25rem;
}

.contact-item-content p {
    margin-bottom: 0;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--muted-blue);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
}

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

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.9rem;
    max-width: 300px;
}

.footer-col h4 {
    color: var(--text-light);
    font-family: Arial, sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-col ul a:hover {
    color: var(--gold-accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.85rem;
    margin-bottom: 0;
}

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

.footer-bottom-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

.text-gold {
    color: var(--gold-accent);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.mt-4 {
    margin-top: 2rem;
}

.pt-0 {
    padding-top: 0;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .product-intro {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-main {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-med);
    }

    .nav-main.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-dropdown-menu {
        position: static;
        transform: none;
        background: var(--muted-blue);
        margin-top: 0.5rem;
        opacity: 1;
        visibility: visible;
        display: none;
        border-radius: 8px;
    }

    .nav-dropdown.active .nav-dropdown-menu {
        display: block;
    }

    .nav-dropdown-toggle {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 0.5rem 1rem;
        background: var(--secondary-blue);
        border-radius: 6px;
        border: 1px solid var(--border-color);
    }

    .nav-dropdown-toggle svg {
        width: 16px;
        height: 16px;
    }

    .nav-dropdown.active .nav-dropdown-toggle {
        border-color: var(--gold-accent);
    }

    .nav-dropdown.active .nav-dropdown-toggle svg {
        transform: rotate(180deg);
    }

    .mobile-toggle {
        display: flex;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .grid-2,
    .grid-3,
    .roles-grid,
    .products-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }

    .problem-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .hitl-content {
        grid-template-columns: 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        margin-bottom: 2rem;
    }

    .footer-brand .logo {
        justify-content: center;
    }

    .footer-brand p {
        margin: 0 auto;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    section {
        padding: 4rem 0;
    }

    .hero {
        min-height: auto;
        padding: 8rem 0 4rem;
    }

    .hero-product {
        min-height: auto;
        padding: 8rem 0 3rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .header-inner {
        padding: 1rem;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }

    .card {
        padding: 1.5rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-delay-1 {
    animation-delay: 0.1s;
}

.animate-delay-2 {
    animation-delay: 0.2s;
}

.animate-delay-3 {
    animation-delay: 0.3s;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}