:root {
    /* Design Tokens from pencil-welcome.pen (Dark Mode - Default) */
    --bg-dark: #0C0C0C;
    --bg-card: #0A0A0A;
    --bg-terminal: #080808;

    --primary: #00FF88;
    --primary-dim: rgba(0, 255, 136, 0.15);
    --primary-glow: rgba(0, 255, 136, 0.4);

    --text-main: #FFFFFF;
    --text-muted: #8a8a8a;
    --text-dim: #6a6a6a;

    --border: #2f2f2f;

    --error: #FF6B6B;
    --warning: #FF8800;

    /* Fonts */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 32px;
    --space-xl: 80px;

    /* Z-index */
    --z-header: 100;
    --z-drawer: 200;
    --z-modal: 300;
}

/* Light Mode Variables override */
body.light-theme {
    --bg-dark: #FFFFFF;
    --bg-card: #F5F5F5;
    --bg-terminal: #EAEAEA;

    --primary: #00A65A;
    /* Darker green for visibility on white */
    --primary-dim: rgba(0, 166, 90, 0.15);
    --primary-glow: rgba(0, 166, 90, 0.4);

    --text-main: #1A1A1A;
    --text-muted: #555555;
    --text-dim: #888888;

    --border: #E0E0E0;

    --error: #D32F2F;
    --warning: #F57C00;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg-dark);
    color: var(--text-main);
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

/* UTILS */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 64px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 32px;
    }
}

/* UI COMPONENTS */
.btn {
    padding: 12px 24px;
    font-weight: 700;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.btn.primary {
    background-color: var(--primary);
    color: #000;
    /* Always black on primary green */
}

.btn.primary:hover {
    background-color: #00e67a;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn.outline {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
}

.btn.outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    padding: 24px;
    transition: border-color 0.3s ease;
    border-radius: 4px;
}

.card:hover {
    border-color: var(--primary);
}

/* HEADER */
.header {
    background-color: var(--bg-dark);
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    backdrop-filter: blur(10px);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

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

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-mark {
    width: 36px;
    height: 36px;
    background-color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-mark span {
    color: #000;
    font-weight: 700;
    font-size: 14px;
}

.logo-text {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 1px;
}

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

.nav-links a {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    transition: color 0.2s;
    text-transform: uppercase;
}

.nav-links a:hover,
.nav-links .active {
    color: var(--primary);
}

.contact-link {
    color: var(--primary) !important;
}

.actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Language Dropdown */
.lang-wrapper {
    position: relative;
    z-index: 101;
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--border);
    padding: 8px 12px;
    font-size: 11px;
    cursor: pointer;
    user-select: none;
    transition: border-color 0.2s;
    min-width: 60px;
    justify-content: center;
    background-color: var(--bg-dark);
}

.lang-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    width: 120px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 4px;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: all 0.2s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.lang-wrapper:hover .lang-dropdown {
    opacity: 1;
    transform: translateY(4px);
    pointer-events: auto;
}

.lang-wrapper::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 10px;
    /* Bridge the gap */
    /* background: red; /* Debugging */
}

.lang-item {
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-dim);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s;
}

.lang-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    /* slightly lighter for hover */
    color: var(--text-main);
}

.light-theme .lang-item:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.lang-item .check-icon {
    width: 12px;
    height: 12px;
    color: var(--primary);
}

.icon {
    width: 14px;
    height: 14px;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 2px;
    border: 1px solid var(--border);
    padding: 2px;
    cursor: pointer;
}

.theme-icon-box {
    padding: 6px;
    color: var(--text-dim);
    display: flex;
    border-radius: 2px;
    transition: all 0.2s ease;
}

.theme-active {
    background-color: var(--primary-dim);
    color: var(--primary);
}

/* HERO */
.hero {
    padding: 100px 0 80px 0;
    text-align: center;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-content {
    margin-bottom: 60px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--primary-glow);
    padding: 6px 16px;
    margin-bottom: 32px;
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 56px;
    line-height: 1.1;
    margin-bottom: 32px;
    max-width: 1000px;
    white-space: pre-wrap;
    /* allow \n */
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto 48px auto;
    white-space: pre-wrap;
}

.cta-group {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* TERMINAL */
.terminal-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
}

.terminal {
    width: 100%;
    max-width: 1100px;
    background-color: var(--bg-terminal);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    text-align: left;
}

.terminal-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.3);
}

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

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red {
    background-color: #FF4444;
}

.dot.orange {
    background-color: #FF8800;
}

.dot.green {
    background-color: #00FF88;
}

.terminal-title {
    color: var(--text-dim);
    font-size: 11px;
    font-family: var(--font-mono);
}

.terminal-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
}

.line {
    margin-bottom: 6px;
}

.prompt {
    color: #aaa;
    margin-right: 8px;
}

.cmd {
    color: var(--primary);
}

.success {
    color: var(--primary);
}

.cursor {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

/* STATS */
.stats {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background-color: var(--bg-dark);
    /* Ensure overlay */
}

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

.stat-card {
    border: none;
    border-right: 1px solid var(--border);
    border-radius: 0;
    text-align: center;
    background: transparent;
    padding: 40px 0;
}

.stat-card:last-child {
    border-right: none;
}

.stat-card:hover {
    border-color: var(--border);
    background-color: rgba(255, 255, 255, 0.02);
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* FEATURES */
.section {
    padding: 100px 0;
    border-top: 1px solid var(--border);
}

.label {
    color: var(--primary);
    font-size: 11px;
    font-weight: 700;
    margin-bottom: 12px;
}

.heading {
    font-size: 42px;
    margin-bottom: 12px;
}

.desc {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
    max-width: 700px;
    margin-bottom: 48px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.feature-card {
    padding: 32px;
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.num {
    font-size: 36px;
    font-weight: 700;
    font-family: var(--font-heading);
    color: rgba(0, 255, 136, 0.4);
}

.tag {
    background-color: var(--primary-dim);
    border: 1px solid rgba(0, 255, 136, 0.3);
    padding: 4px 10px;
    color: var(--primary);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.feature-desc {
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.6;
    margin-bottom: 24px;
}

.mini-terminal {
    background-color: #050505;
    border: 1px solid #1a1a1a;
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.6;
    border-radius: 4px;
}

.mini-terminal .context {
    color: #555;
    font-size: 10px;
    margin: 2px 0;
}

.mini-terminal .output {
    color: #ccc;
    margin-top: 4px;
}

.mini-terminal .error {
    color: var(--error);
}

/* WORKFLOW */
.header-center {
    text-align: center;
    margin-bottom: 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.workflow-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 24px;
    align-items: center;
}

.step-card {
    border-left: 2px solid var(--border);
    padding: 32px;
}

.primary-step {
    border-left-color: var(--primary);
}

.orange-step {
    border-left-color: var(--warning);
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    font-family: var(--font-heading);
}

.step-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.arrow-container {
    display: flex;
    justify-content: center;
    color: var(--text-dim);
}

/* AGENTS */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.agent-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.icon-box {
    margin-bottom: 24px;
    color: var(--primary);
}

.agent-title {
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.agent-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* DRAWER */
.drawer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-dark);
    border-top: 1px solid var(--border);
    padding: 24px 64px 64px 64px;
    text-align: center;
    transform: translateY(calc(100% - 40px));
    transition: transform 0.5s cubic-bezier(0.32, 0.72, 0, 1);
    z-index: var(--z-drawer);
    cursor: pointer;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.5);
}

.drawer.open {
    transform: translateY(0);
    cursor: default;
}

.pull-indicator {
    width: 48px;
    height: 4px;
    background-color: #3f3f3f;
    border-radius: 2px;
    margin: 0 auto 16px auto;
    transition: background-color 0.2s;
}

.drawer:hover .pull-indicator {
    background-color: #555;
}

.drawer-content:hover {
    opacity: 0.8;
}

.drawer-content {
    transition: opacity 0.3s;
}

.drawer-heading {
    font-size: 36px;
    margin-bottom: 12px;
}

.drawer-desc {
    color: var(--text-dim);
    font-size: 12px;
    margin-bottom: 24px;
}

.drawer-icon {
    width: 20px;
    height: 20px;
    color: var(--primary);
    display: block;
    margin: 0 auto;
}

.drawer-icon.fade {
    opacity: 0.4;
    margin-top: -12px;
}

/* MODAL */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease-out;
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    padding: 32px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.show .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.close-btn {
    color: var(--text-muted);
    padding: 4px;
    border-radius: 4px;
}

.close-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.light-theme .close-btn:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.input,
.textarea {
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    padding: 12px;
    border-radius: 4px;
    color: var(--text-main);
    font-family: var(--font-mono);
    font-size: 13px;
    outline: none;
    width: 100%;
    transition: border-color 0.2s;
}

.input:focus,
.textarea:focus {
    border-color: var(--primary);
}

.textarea {
    min-height: 120px;
    resize: vertical;
}

.full-width {
    width: 100%;
}

/* Mobile Response */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }

    .stats-grid,
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .workflow-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .arrow-container {
        transform: rotate(90deg);
        margin: 8px 0;
    }

    .stat-card {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .stat-card:last-child {
        border-bottom: none;
    }

    .nav-links {
        display: none;
    }
}