:root {
    /* Nord Colors */
    --nord0: #2e3440;
    --nord1: #3b4252;
    --nord2: #434c5e;
    --nord3: #4c566a;
    --nord4: #d8dee9;
    --nord5: #e5e9f0;
    --nord6: #eceff4;
    --nord7: #8fbcbb;
    --nord8: #88c0d0;
    --nord9: #81a1c1;
    --nord10: #5e81ac;
    --shadow: rgba(0, 0, 0, 0.4);

    /* Layout Standards */
    --container-max: 1280px;
    --container-pad: 1rem;
    --section-space: 10rem;
    --content-gap: 4rem;
    --text-space: 1.5rem;
    --stack-overlap: 460px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--nord0);
    color: var(--nord6);
    font-family:
        "Inter",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

/* =========================================
   NAVBAR
   ========================================= */
.navbar {
    width: 100%;
    padding: 1rem 0;
    background-color: rgba(46, 52, 64, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(216, 222, 233, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.navbar .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--nord8);
    text-decoration: none;
}

.navbar .logo img {
    width: 28px;
    height: 28px;
}

.navbar .nav-links {
    display: flex;
    gap: 1rem;
    list-style: none;
    align-items: center;
}

.navbar .nav-links a {
    text-decoration: none;
    color: var(--nord6);
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
}

.navbar .nav-links a:hover {
    color: var(--nord8);
}

.navbar .nav-links li:nth-child(3) {
    margin-left: 0.5rem;
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: 3rem;
    align-items: center;
    padding: 6rem 0 3rem;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1.5px;
    max-width: 580px;
}

.hero-text p {
    font-size: 1.15rem;
    color: var(--nord4);
    margin-bottom: 3rem;
    max-width: 550px;
}

.hero-visual {
    position: relative;
    margin-top: 1rem;
}
.hero-img {
    width: 100%;
    border-radius: 0;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transform: perspective(1000px) rotateY(-15deg);
}

.cta-group {
    display: flex;
    gap: 1rem;
}

/* =========================================
   FEATURES SECTION
   ========================================= */
.features {
    padding: 6rem 0 4rem;
    background-color: var(--nord1);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.feature-row {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 10rem;
}

.feature-row:last-child {
    margin-bottom: 0;
}

.feature-row.reverse {
    grid-template-columns: 1fr 1.2fr;
}
.feature-row.reverse .feature-text {
    order: 2;
}
.feature-row.reverse .feature-visual {
    order: 1;
}

.feature-text h3 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--text-space);
    color: var(--nord8);
}

.feature-text p {
    font-size: 1.1rem;
    color: var(--nord4);
}

/* =========================================
   IMAGE STACK COMPONENT
   ========================================= */
.image-stack {
    --card-width: 550px;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 2000px;
}

.stack-card {
    flex-shrink: 0;
    width: var(--card-width);
    transition: transform 0.3s ease;
    overflow: hidden;
    line-height: 0;
    position: relative;
    border: 2px solid var(--nord3);
    border-radius: 4px;
}

.stack-card img {
    width: 100%;
    height: auto;
    display: block;
}
.image-stack .stack-card:hover {
    transform: rotateY(0deg) scale(1.05) !important;
    z-index: 100 !important;
    cursor: pointer;
}

/* lf = Left facing */
.stack-lf {
    --rotate-y: -25deg;
}
.stack-lf .stack-card {
    margin-right: calc(-1 * var(--stack-overlap));
    transform: rotateY(var(--rotate-y));
    box-shadow: 4px 4px 0px 0px var(--shadow);
}
.stack-lf .stack-card:nth-child(1) {
    z-index: 10;
}
.stack-lf .stack-card:nth-child(2) {
    z-index: 9;
}
.stack-lf .stack-card:nth-child(3) {
    z-index: 8;
}
.stack-lf .stack-card:nth-child(4) {
    z-index: 7;
}
.stack-lf .stack-card:last-child {
    margin-right: 0;
}

/* rf = Right facing */
.stack-rf {
    --rotate-y: 25deg;
}
.stack-rf .stack-card {
    margin-left: calc(-1 * var(--stack-overlap));
    transform: rotateY(var(--rotate-y));
    box-shadow: -4px 4px 0px 0px var(--shadow);
}
.stack-rf .stack-card:nth-child(1) {
    z-index: 7;
}
.stack-rf .stack-card:nth-child(2) {
    z-index: 8;
}
.stack-rf .stack-card:nth-child(3) {
    z-index: 9;
}
.stack-rf .stack-card:nth-child(4) {
    z-index: 10;
}
.stack-rf .stack-card:first-child {
    margin-left: 0;
}

/* =========================================
   THEME VARIANTS SECTION
   ========================================= */
.theme-variants {
    padding: 4rem 0 6rem;
    background-color: var(--nord0);
    overflow: hidden;
}

.theme-variants .section-title {
    margin-bottom: 2rem;
}

.variants-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 0;
}

.variant-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.variant-text {
    margin-bottom: 4rem;
    max-width: 450px;
}

.variant-text h3 {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--nord8);
}

.variant-text p {
    color: var(--nord4);
    font-size: 1.1rem;
}

.variant-item .image-stack {
    --card-width: 450px;
    --stack-overlap: 380px;
}

/* =========================================
   TECHNICAL FEATURES (GLOW CARDS)
   ========================================= */
.tech-features {
    padding: 4rem 0 4rem;
    background-color: var(--nord0);
}

.glow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.glow-card {
    background: var(--nord1);
    padding: 3rem;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition:
        transform 0.3s ease,
        border-color 0.3s ease;
}

.glow-card:hover {
    transform: translateY(-5px);
    border-color: rgba(136, 192, 208, 0.3);
}

.glow-card::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at center,
        var(--glow-color, var(--nord8)),
        transparent 70%
    );
    opacity: 0.04;
    pointer-events: none;
}

.glow-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--nord8);
}

.glow-card p {
    color: var(--nord4);
    line-height: 1.6;
}

/* =========================================
   DOWNLOAD SECTION
   ========================================= */
.download-section {
    padding: 4rem 0;
    background-color: var(--nord0);
}

.download-section h2 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 4rem;
    text-align: center;
    letter-spacing: -1px;
}

.download-card {
    width: 900px; /* Expansive width */
    max-width: 100%;
    margin: 0 auto;
    background: rgba(46, 52, 64, 0.4);
    backdrop-filter: blur(16px);
    border: 2px solid var(--nord8);
    border-radius: 16px;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.4);
    display: grid;
    grid-template-columns: 240px 1fr; /* Sidebar OS choice */
    overflow: visible;
    position: relative;
}

.download-title {
    position: absolute;
    top: -18px;
    left: 40px;
    background: var(--nord0);
    border: 2px solid var(--nord8);
    color: var(--nord8);
    padding: 6px 20px;
    border-radius: 4px;
    font-weight: 900;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
}

.download-selector {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 3rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.download-os-btn {
    padding: 14px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: transparent;
    color: var(--nord4);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.download-os-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}
.download-os-btn.active {
    background: rgba(136, 192, 208, 0.15);
    border-color: var(--nord8);
    color: var(--nord8);
    transform: translateX(5px);
}

.download-content-wrap {
    padding: 3rem;
}

.download-pane {
    display: none;
}
.download-pane.active {
    display: flex;
    animation: fadeIn 0.4s ease;
}

.download-footer-info {
    font-size: 0.9rem;
    color: var(--nord4);
    border-left: 3px solid var(--nord8);
    padding-left: 20px;
    margin-top: 2rem;
}

.terminal-minimal {
    background: #111111;
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.5);
}

.terminal-copy {
    background: transparent;
    border: none;
    color: #666;
    cursor: pointer;
    transition: color 0.2s;
}
.terminal-copy:hover {
    color: var(--nord8);
}

/* =========================================
   FAQ SECTION
   ========================================= */
.faq-section {
    padding: 4rem 0 8rem;
    background-color: var(--nord1);
}

.accordion-container {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    border-bottom: 1px solid var(--nord3);
    margin-bottom: 1rem;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem 0;
    background: none;
    border: none;
    color: var(--nord8);
    font-size: 1.25rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
}

.accordion-header:hover {
    color: var(--nord7);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    color: var(--nord4);
}

.accordion-content p {
    font-size: 1.05rem;
    line-height: 1.6;
}

.accordion-item.active .accordion-content {
    max-height: 300px; /* Allow enough space for text */
    padding-bottom: 1.5rem;
}

.icon-plus::after {
    content: "+";
    font-size: 1.5rem;
    font-weight: 400;
}

.accordion-item.active .icon-plus::after {
    content: "−";
}

/* =========================================
   FOOTER
   ========================================= */
.footer {
    width: 100%;
    background: var(--nord0);
    padding: 2rem 0 1rem;
    border-top: 2px solid var(--nord8);
    position: relative;
}

.footer::before {
    content: "";
    position: absolute;
    top: -2px;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(
        to bottom,
        rgba(136, 192, 208, 0.2),
        transparent
    );
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}
.footer-links a {
    text-decoration: none;
    color: var(--nord3);
    font-size: 1.1rem;
    font-weight: 700;
    transition: color 0.2s;
    display: flex;
    align-items: center;
}
.footer-links a:hover {
    color: var(--nord6);
}

.footer .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--nord8);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer .logo img {
    width: 36px;
    height: 36px;
}

.footer-bottom {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding-top: 1rem;
    color: var(--nord3);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.footer-bottom a {
    color: inherit;
    text-decoration: none;
}
.footer-bottom a:hover {
    color: var(--nord8);
    text-decoration: underline;
}

/* =========================================
   UTILITIES
   ========================================= */
.btn {
    padding: 0.75rem 2rem;
    min-width: 140px;
    text-align: center;
    border-radius: 8px;
    font-weight: 800;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-block;
    text-decoration: none;
}

.btn-primary {
    background: var(--nord8);
    color: var(--nord0);
}
.btn-primary:hover {
    background: var(--nord7);
    transform: translateY(-2px);
}

.btn-secondary {
    border: 2px solid var(--nord3);
    color: var(--nord6);
}
.btn-secondary:hover {
    border-color: var(--nord8);
    color: var(--nord8);
    transform: translateY(-2px);
}

.btn-disabled {
    background: var(--nord3);
    color: var(--nord4);
    cursor: not-allowed;
    pointer-events: none;
}

.icon-mask {
    display: inline-block;
    width: 20px;
    height: 20px;
    background-color: currentColor;
    -webkit-mask-size: contain;
    mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
}

.icon-linux {
    -webkit-mask-image: url("assets/linux.svg");
    mask-image: url("assets/linux.svg");
}
.icon-windows {
    -webkit-mask-image: url("assets/windows.svg");
    mask-image: url("assets/windows.svg");
}
.icon-copy {
    -webkit-mask-image: url("assets/copy.svg");
    mask-image: url("assets/copy.svg");
    width: 28px;
    height: 28px;
}
.icon-discord {
    -webkit-mask-image: url("assets/discord.svg");
    mask-image: url("assets/discord.svg");
}
.icon-github {
    -webkit-mask-image: url("assets/github.svg");
    mask-image: url("assets/github.svg");
}

/* =========================================
   RESPONSIVE OVERRIDES
   ========================================= */
@media (max-width: 1200px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 4rem;
    }
    .hero-text h1 {
        font-size: 2.75rem;
        max-width: 100%;
    }
    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }
    .cta-group {
        justify-content: center;
    }
    .hero-img {
        transform: none;
        max-width: 600px;
        margin: 0 auto;
    }
    .variants-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    body .image-stack,
    body .variant-item .image-stack {
        --card-width: 450px;
        --stack-overlap: 380px;
    }
}

@media (max-width: 900px) {
    .download-card {
        grid-template-columns: 1fr;
    }
    .download-selector {
        flex-direction: row;
        justify-content: center;
        padding: 2.5rem 1rem 1rem;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .feature-row,
    .feature-row.reverse {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    .feature-text,
    .feature-visual {
        order: unset !important;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        justify-items: center;
    }
    .image-stack {
        margin: 2rem 0;
    }
    body .image-stack,
    body .variant-item .image-stack {
        --card-width: 380px;
        --stack-overlap: 320px;
    }
}

@media (max-width: 768px) {
    .glow-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .hero-text h1 {
        font-size: 2.25rem;
    }
    .navbar .logo span {
        display: none;
    }
    .navbar .nav-links {
        gap: 1.25rem;
    }
    .navbar .nav-links a {
        font-size: 0.9rem;
    }
    .download-content-wrap {
        padding: 1.5rem;
    }
    .download-os-btn span:last-child {
        display: none;
    }
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 3rem;
    }
    .features,
    .tech-features,
    .download-section,
    .faq-section,
    .theme-variants {
        padding: 3rem 0;
    }
    body .image-stack,
    body .variant-item .image-stack {
        --card-width: 280px;
        --stack-overlap: 230px;
    }
}

.footer-links .icon-mask {
    width: 1.1rem;
    height: 1.1rem;
}
.command-fade {
    display: inline-block;
    transition: opacity 0.4s ease;
}
.command-fade.fade-out {
    opacity: 0;
}