/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #ffffff;
    background-color: #0A192F;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a {
    color: inherit;
    text-decoration: none;
}
ul, ol {
    list-style: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}
:focus-visible {
    outline: 2px solid #FF4500;
    outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* CSS Variables */
:root {
    --color-primary: #FF4500;
    --color-primary-dark: #CC3700;
    --color-secondary: #0A192F;
    --color-accent: #C0C0C0;
    --color-white: #FFFFFF;
    --color-light-gray: #B0BEC5;
    --color-blue-light: #1A2A4A;
    --color-success: #00E676;
    --gradient-fire: linear-gradient(135deg, #FF4500, #FF6A00);
    --font-heading: 'Montserrat', 'Impact', Arial Black, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-data: 'Fira Code', 'Consolas', monospace;
    --max-width: 1200px;
    --header-height: 64px;
    --nav-gap: 2rem;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    z-index: 9999;
    background: var(--color-primary);
    color: #fff;
    padding: 0.5rem 1rem;
    font-weight: 700;
    transition: top 0.3s;
}
.skip-link:focus {
    top: 0;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--color-secondary);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.is-transparent {
    background: transparent;
    box-shadow: none;
}
.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}
.logo-icon {
    display: inline-block;
    width: 28px;
    height: 28px;
    background: var(--gradient-fire);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    transform: rotate(-15deg);
    transition: transform 0.3s;
}
.logo:hover .logo-icon {
    transform: rotate(0deg) scale(1.1);
}
.logo-text {
    color: var(--color-white);
}
.nav-list {
    display: flex;
    gap: var(--nav-gap);
}
.nav-list a {
    position: relative;
    padding: 0.25rem 0;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-white);
    transition: color 0.2s;
    white-space: nowrap;
}
.nav-list a:hover {
    color: var(--color-primary);
}
.nav-list a[aria-current="page"] {
    color: var(--color-primary);
}
.nav-list a[aria-current="page"]::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-fire);
    border-radius: 2px;
}
.header-cta {
    display: none;
}
@media (min-width: 768px) {
    .header-cta {
        display: inline-flex;
    }
}

/* Navigation Toggle (mobile) */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}
.nav-toggle-bar {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--color-white);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}
@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
}

/* Mobile Nav Open State */
[data-nav][data-open] {
    display: block;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--color-secondary);
    padding: 2rem 1.5rem;
    overflow-y: auto;
    z-index: 999;
}
[data-nav][data-open] .nav-list {
    flex-direction: column;
    gap: 1.25rem;
}
[data-nav][data-open] .nav-list a {
    font-size: 1.2rem;
    padding: 0.5rem 0;
}
[data-nav][data-open] + .nav-toggle .nav-toggle-bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
[data-nav][data-open] + .nav-toggle .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}
[data-nav][data-open] + .nav-toggle .nav-toggle-bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 767px) {
    .nav {
        display: none;
    }
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.5rem;
    font-family: var(--font-data);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.btn-primary {
    background: var(--gradient-fire);
    color: #fff;
    border: none;
}
.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--color-primary-dark);
    box-shadow: 0 0 12px rgba(255, 69, 0, 0.6);
}
.btn-outline {
    background: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
}
.btn-outline:hover,
.btn-outline:focus-visible {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Footer */
.site-footer {
    background: var(--color-secondary);
    color: var(--color-accent);
    padding: 3rem 1.5rem 1.5rem;
    border-top: 3px solid var(--color-primary);
}
.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 768px) {
    .footer-inner {
        grid-template-columns: 1fr 1fr 1fr;
    }
}
.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.footer-logo {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--color-white);
    letter-spacing: -0.02em;
}
.footer-icp {
    font-size: 0.85rem;
    color: var(--color-light-gray);
}
.footer-contact p,
.footer-contact address {
    font-size: 0.9rem;
    line-height: 1.6;
    font-style: normal;
}
.footer-contact a {
    color: var(--color-primary);
    transition: color 0.2s;
}
.footer-contact a:hover {
    color: var(--color-white);
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.footer-links a {
    color: var(--color-light-gray);
    transition: color 0.2s;
    font-size: 0.9rem;
}
.footer-links a:hover {
    color: var(--color-primary);
}
.footer-trust,
.footer-copy {
    grid-column: 1 / -1;
    font-size: 0.85rem;
    color: var(--color-light-gray);
    text-align: center;
    border-top: 1px solid rgba(192, 192, 192, 0.2);
    padding-top: 1rem;
}
.footer-copy {
    padding-top: 0.5rem;
    font-family: var(--font-data);
    font-size: 0.8rem;
}

/* Common Layout Components */
.content-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}
.section-title {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 2rem;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    position: relative;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-fire);
    margin-top: 0.5rem;
    border-radius: 2px;
}
.data-label {
    font-family: var(--font-data);
    font-size: 0.85rem;
    color: var(--color-light-gray);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.data-value {
    font-family: var(--font-data);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-white);
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0;
    font-size: 0.85rem;
    color: var(--color-light-gray);
}
.breadcrumb a {
    color: var(--color-accent);
    transition: color 0.2s;
}
.breadcrumb a:hover {
    color: var(--color-primary);
}
.breadcrumb > * + *::before {
    content: '›';
    margin-right: 0.5rem;
    color: var(--color-light-gray);
}
.img-placeholder {
    background: var(--color-blue-light);
    border-radius: 4px;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-light-gray);
    font-size: 0.9rem;
    border: 1px dashed rgba(192, 192, 192, 0.3);
}
/* Grid utility */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr 1fr;
    }
}
.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
@media (min-width: 768px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}
/* Scroll Progress Bar (shared component) */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-fire);
    z-index: 9999;
    transition: width 0.1s linear;
}
@media (prefers-reduced-motion: reduce) {
    .scroll-progress {
        display: none;
    }
}
/* Back to top */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s, background 0.3s;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background: var(--color-primary-dark);
}
.back-to-top::before {
    content: '↑';
    font-weight: 700;
}
@media (prefers-reduced-motion: reduce) {
    .back-to-top {
        opacity: 1;
        visibility: visible;
        bottom: 2rem;
    }
}