:root {
    /* Color Palette derived from the design prototype */
    --color-primary: #f5fff5;
    --color-primary-dim: #00e290;
    --color-secondary: #a6e6ff;
    --color-tertiary-dim: #b8c3ff;
    --color-background: #0a0a0a;
    --color-surface: #131313;
    --color-surface-variant: #353534;
    --color-surface-bright: #3a3939;
    --color-surface-lowest: #0e0e0e;
    --color-on-surface: #e5e2e1;
    --color-on-surface-variant: #b9cbbd;
    --color-outline: #849588;
    --color-outline-variant: #3a4a3f;
    --color-on-primary-fixed: #002111;

    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --margin-mobile: 16px;
    --margin-desktop: 32px;
}

body {
    background-color: var(--color-background);
    background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 24px 24px;
    color: var(--color-on-surface);
    font-family: var(--font-sans);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background-color: var(--color-primary-dim);
    color: var(--color-on-primary-fixed);
}

/* Utilities */
.color-primary-dim { color: var(--color-primary-dim); }
.color-secondary { color: var(--color-secondary); }
.color-tertiary-dim { color: var(--color-tertiary-dim); }
.w-full { width: 100%; }
.hidden { display: none !important; }

/* Typography */
.text-gradient {
    background: linear-gradient(to right, var(--color-primary-dim), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navbar */
.navbar {
    background-color: rgba(19, 19, 19, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(58, 74, 63, 0.3);
    box-shadow: 0 0 15px rgba(0, 226, 144, 0.1);
    position: sticky;
    top: 0;
    z-index: 50;
    width: 100%;
}

.navbar-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 16px var(--margin-mobile);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (min-width: 768px) {
    .navbar-container {
        padding: 16px var(--margin-desktop);
    }
}

.logo {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--color-primary-dim);
}

@media (min-width: 768px) {
    .logo {
        font-size: 32px;
    }
}

.nav-links {
    display: none;
    align-items: center;
    gap: 32px;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    color: var(--color-on-surface-variant);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 14px;
    transition: color 0.3s, background-color 0.3s;
    padding: 8px 12px;
    border-radius: 4px;
}

.nav-links a:hover {
    color: var(--color-on-surface);
    background-color: rgba(53, 53, 52, 0.5);
}

/* Buttons */
.btn {
    border: none;
    cursor: pointer;
    font-family: var(--font-mono);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-sm {
    font-size: 12px;
    padding: 8px 24px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    border-radius: 4px;
}

.btn-sm:hover {
    transform: scale(0.95);
}

.btn-lg {
    font-size: 14px;
    padding: 16px 32px;
    border-radius: 4px;
}

.btn-primary {
    background: linear-gradient(to right, #00e290, #52ffac);
    color: var(--color-on-primary-fixed);
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::after {
    left: 100%;
}

.btn-ghost {
    border: 1px solid var(--color-primary-dim);
    color: var(--color-primary-dim);
    background: transparent;
}

.btn-ghost:hover {
    box-shadow: 0 0 15px rgba(0, 226, 144, 0.2);
    background: rgba(0, 226, 144, 0.05);
}

/* Main Content */
main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    position: relative;
    z-index: 10;
    padding-top: 64px;
    padding-bottom: 96px;
}

/* Hero Section */
.hero {
    width: 100%;
    max-width: 1440px;
    padding: 0 var(--margin-mobile);
    margin: 0 auto 128px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

@media (min-width: 768px) {
    .hero {
        padding: 0 var(--margin-desktop);
    }
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 400px;
    background: conic-gradient(from 180deg at 50% 50%, #00e290 0deg, #a6e6ff 180deg, #00e290 360deg);
    opacity: 0.03;
    filter: blur(100px);
    border-radius: 50%;
    pointer-events: none;
}

.hero-banner {
    width: 100%;
    max-width: 896px;
    margin: 0 auto 48px;
    position: relative;
}

.banner-img {
    width: 100%;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 30px rgba(0,226,144,0.15));
}

.hero-title {
    font-family: var(--font-mono);
    font-size: 36px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.04em;
    color: var(--color-on-surface);
    margin-bottom: 24px;
    max-width: 768px;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 60px;
    }
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-on-surface-variant);
    margin: 0 auto 48px;
    max-width: 672px;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 64px;
}

@media (min-width: 640px) {
    .hero-actions {
        flex-direction: row;
    }
}

/* Terminal Window */
.terminal-window {
    background: #121212;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    width: 100%;
    max-width: 672px;
    margin: 0 auto;
    text-align: left;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    position: relative;
}

.terminal-header {
    background: #1c1b1b;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 8px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.terminal-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-surface-variant);
}

.terminal-tab {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--color-on-surface-variant);
    opacity: 0.5;
    margin-left: 16px;
}

.terminal-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--color-primary-dim);
}

.terminal-line {
    display: flex;
    align-items: center;
}

.prompt-symbol {
    color: var(--color-secondary);
    margin-right: 8px;
}

.typewriter-text {
    overflow: hidden;
    border-right: 0.15em solid var(--color-primary-dim);
    white-space: nowrap;
    width: 0;
    animation: 
        typing 3s steps(40, end) forwards,
        blink-caret 0.75s step-end infinite;
}

.terminal-output {
    margin-top: 8px;
    color: var(--color-on-surface-variant);
    opacity: 0;
    line-height: 1.7;
    transition: opacity 0.5s ease;
}

@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: var(--color-primary-dim); }
}

/* Features Bento Grid */
.features-section {
    width: 100%;
    max-width: 1440px;
    padding: 0 var(--margin-mobile);
    margin: 0 auto 128px;
}

@media (min-width: 768px) {
    .features-section {
        padding: 0 var(--margin-desktop);
    }
}

.section-title {
    font-family: var(--font-mono);
    font-size: 30px;
    font-weight: 600;
    text-align: center;
    color: var(--color-on-surface);
    margin-bottom: 48px;
}

.bento-grid {
    display: grid;
    grid-template-columns: 1fr;
    grid-auto-rows: 250px;
    gap: 24px;
}

@media (min-width: 768px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.bento-item {
    background: rgba(18, 18, 18, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s ease;
}

.bento-item.span-2 {
    grid-column: span 1;
}
@media (min-width: 768px) {
    .bento-item.span-2 {
        grid-column: span 2;
    }
}

.bento-item:hover {
    border-color: var(--color-primary-dim);
    box-shadow: 0 0 20px rgba(0, 226, 144, 0.1);
}

.bento-label {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.bento-title {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 600;
    color: var(--color-on-surface);
    margin: 0 0 8px 0;
}

.bento-desc {
    font-size: 14px;
    color: var(--color-on-surface-variant);
    margin: 0;
    line-height: 1.5;
}

.bento-icon {
    display: flex;
    justify-content: flex-end;
    opacity: 0.5;
    transition: opacity 0.3s;
}

.bento-item:hover .bento-icon {
    opacity: 1;
}

.bento-icon .material-symbols-outlined {
    font-size: 36px;
}

/* Installation & Shortcuts */
.info-section {
    width: 100%;
    max-width: 1440px;
    padding: 0 var(--margin-mobile);
    margin: 0 auto;
}

@media (min-width: 768px) {
    .info-section {
        padding: 0 var(--margin-desktop);
    }
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}

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

.glass-panel {
    background: rgba(18, 18, 18, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(58, 74, 63, 0.3);
    border-radius: 12px;
    padding: 32px;
}

.panel-title {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 600;
    color: var(--color-on-surface);
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 24px 0;
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    font-family: var(--font-mono);
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-surface-variant);
    color: var(--color-primary-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-desc {
    color: var(--color-on-surface);
    margin: 0 0 8px 0;
}

.step-detail {
    color: var(--color-on-surface-variant);
    font-size: 14px;
    margin: 0;
}

.btn-download-exe {
    background-color: var(--color-surface-bright);
    color: var(--color-on-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: 4px;
    padding: 4px 12px;
    font-size: 12px;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: border-color 0.3s;
}

.btn-download-exe:hover {
    border-color: var(--color-primary-dim);
}

.code-snippet {
    background-color: var(--color-surface-lowest);
    border: 1px solid rgba(58, 74, 63, 0.5);
    border-radius: 4px;
    padding: 12px;
    font-size: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copy-icon {
    color: var(--color-on-surface-variant);
    font-size: 18px;
    cursor: pointer;
    transition: color 0.3s;
}

.copy-icon:hover {
    color: var(--color-primary-dim);
}

.shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-family: var(--font-mono);
    font-size: 14px;
}

.shortcut-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(58, 74, 63, 0.2);
    color: var(--color-on-surface-variant);
}

.shortcut-item.border-none {
    border-bottom: none;
    padding-bottom: 0;
}

.kbd-badge {
    background: #2a2a2a;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--color-on-surface);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
    box-shadow: 0 2px 0 rgba(0,0,0,0.5);
}

/* Footer */
.footer {
    background-color: var(--color-surface-lowest);
    border-top: 1px solid rgba(58, 74, 63, 0.2);
    font-family: var(--font-mono);
    font-size: 14px;
    width: 100%;
    position: relative;
    z-index: 10;
    padding: 48px 0;
    margin-bottom: 60px; /* Space for HUD */
}

.footer-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--margin-mobile);
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 768px) {
    .footer-container {
        padding: 0 var(--margin-desktop);
        grid-template-columns: 1fr 1fr;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    color: var(--color-primary-dim);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.footer-copyright {
    color: var(--color-on-surface-variant);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: flex-start;
}

@media (min-width: 768px) {
    .footer-links {
        justify-content: flex-end;
    }
}

.footer-links a {
    color: var(--color-on-surface-variant);
    text-decoration: none;
    transition: color 0.3s, transform 0.3s;
}

.footer-links a:hover {
    color: var(--color-primary-dim);
    transform: translateX(4px);
}

/* CLI HUD */
.hud-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(19, 19, 19, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(0, 226, 144, 0.3);
    z-index: 40;
    padding: 12px var(--margin-mobile);
}

@media (min-width: 768px) {
    .hud-bar {
        padding: 12px var(--margin-desktop);
    }
}

.hud-container {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 14px;
}

.prompt-arrow {
    color: var(--color-primary-dim);
    font-weight: 700;
    margin-right: 12px;
}

.hud-input {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--color-on-surface);
    outline: none;
    padding: 0;
}

.hud-input::placeholder {
    color: var(--color-on-surface-variant);
    opacity: 0.5;
}

.cursor-pulse {
    width: 8px;
    height: 16px;
    background-color: var(--color-primary-dim);
    margin-left: 4px;
    display: inline-block;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}