:root {
    --bg-color: #F9F7F3;
    --bg-alt: #F1EFEA;
    --text-color: #1A1A1A;
    --text-light: #555555;
    --text-lighter: #7A7A7A;
    --accent-color: #1C4FD7;
    --accent-hover: #173EAB;
    --card-bg: #FFFFFF;
    --border-color: #E1DED7;
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.03);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.05);
    --shadow-lg: 0 8px 20px rgba(0,0,0,0.06);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-stack);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    padding: 20px 0;
    position: sticky;
    top: 0;
    background: rgba(249, 247, 243, 0.95);
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

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

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-download {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-color);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.nav-download:hover {
    background: rgba(37, 99, 235, 0.1);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    text-align: left;
}

.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 48px;
    align-items: center;
}

.hero-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-badges {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.hero-badge {
    display: inline-block;
    background: transparent;
    color: var(--text-light);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
}

.hero-badge.coming-soon {
    background: transparent;
    color: #92400E;
    border-color: #D97706;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero-animated-line {
    display: block;
    color: var(--text-lighter);
    font-size: 0.5em;
    font-weight: 500;
    letter-spacing: 0;
    margin-bottom: 8px;
}

#changing-text {
    color: var(--text-light);
    font-weight: 600;
}

.hero-main-line {
    display: block;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 520px;
    margin-left: 0;
    margin-right: 0;
    line-height: 1.5;
}

/* Value List */
.value-list {
    margin: 0 0 32px;
    padding-left: 20px;
    color: var(--text-light);
}

.value-list li {
    margin-bottom: 6px;
}

.cta-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    cursor: pointer;
    position: relative;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-ghost {
    background: transparent;
    color: var(--text-light);
    border-color: transparent;
    padding-left: 8px;
    padding-right: 8px;
}

.btn-ghost:hover {
    color: var(--text-color);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

.btn-icon {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-lighter);
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s, background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    color: var(--text-color);
    background: rgba(0,0,0,0.05);
}

.version-info {
    font-size: 0.9rem;
    color: var(--text-lighter);
}

/* Stats Counter */
.stats-counter {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.counter-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-color);
}

.counter-label {
    font-size: 0.9rem;
    color: var(--text-lighter);
}

.hero-media {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.screenshot-frame {
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    width: 100%;
    aspect-ratio: 16 / 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-lighter);
    font-size: 1.05rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.screenshot-caption {
    font-size: 0.9rem;
    color: var(--text-lighter);
}

.screenshot-placeholder {
    background: var(--bg-alt);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    aspect-ratio: 16 / 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-lighter);
    font-size: 1.05rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.screenshot-placeholder.small {
    max-width: 600px;
    aspect-ratio: 16 / 9;
}

/* Try It Yourself Demo - REDESIGNED */
.try-it {
    padding: 90px 0;
    background: var(--bg-alt);
}

.demo-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.demo-input-area {
    padding: 24px;
    background: var(--card-bg);
}

.demo-input-area textarea {
    width: 100%;
    min-height: 120px;
    padding: 16px;
    border: 2px solid var(--bg-alt);
    border-radius: var(--radius-md);
    font-family: var(--font-stack);
    font-size: 1.05rem;
    line-height: 1.5;
    resize: vertical;
    transition: all 0.2s;
    background: #FAFAF8;
    color: var(--text-color);
}

.demo-input-area textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background: #FFFFFF;
}

.demo-controls {
    padding: 0 24px 24px;
    border-bottom: 1px solid var(--border-color);
}

.option-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    color: var(--text-lighter);
    margin-bottom: 12px;
}

.mode-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.mode-btn {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 6px;
}

.mode-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: rgba(28, 79, 215, 0.02);
}

.mode-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
    box-shadow: 0 2px 4px rgba(28, 79, 215, 0.2);
}

.demo-output-area {
    padding: 24px;
    background: #FAFAF8;
    min-height: 140px;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.output-header label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    color: var(--text-lighter);
}

.demo-output {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--text-color);
    white-space: pre-wrap;
    min-height: 60px;
}

/* Loader */
.loader {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

.loader.hidden {
    display: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Section Titles */
.section-title {
    text-align: left;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: left;
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 0 40px;
    line-height: 1.6;
}

.section-title.center,
.section-subtitle.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

/* Before / After */
.before-after {
    padding: 90px 0;
}

.before-after-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.before-block,
.after-block {
    background: var(--card-bg);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.simple-list {
    margin: 0;
    padding-left: 20px;
    color: var(--text-light);
}

.simple-list li {
    margin-bottom: 10px;
}

.highlight {
    color: var(--accent-color);
}

/* Works Everywhere */
.works-everywhere {
    padding: 90px 0;
    background: var(--bg-alt);
}

.app-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px 24px;
}

.app-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--text-light);
}

/* Who Is It For */
.who-is-for {
    padding: 80px 0;
}

.personas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.persona-card {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-align: left;
}

.persona-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.persona-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* Use Cases */
.use-cases {
    padding: 90px 0;
    background: var(--bg-alt);
}

.use-cases-list {
    list-style: none;
    padding: 0;
    margin: 0;
    column-count: 2;
    column-gap: 32px;
}

.use-cases-list li {
    break-inside: avoid;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--text-light);
}

/* Language Note */
.language-note {
    padding: 70px 0;
}

.language-card {
    background: var(--card-bg);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.language-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.language-content p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* FAQ */
.faq {
    padding: 80px 0;
    background: var(--bg-alt);
}

.faq-list {
    max-width: 760px;
    margin: 30px 0 0;
}

.faq-item {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
}

.faq-question {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-color);
}

.faq-answer {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}

.faq-answer a {
    color: var(--accent-color);
    text-decoration: none;
}

.faq-answer a:hover {
    text-decoration: underline;
}


/* Features Section */
.features {
    padding: 90px 0;
    background: var(--bg-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 50px;
}

.feature-item {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.feature-item h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-item p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* How It Works */
.how-it-works {
    padding: 90px 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin: 40px 0;
}

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

.step-number {
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    font-weight: 700;
    color: var(--accent-color);
    padding-top: 3px;
}

.step h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 600;
}

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

.steps-screenshot {
    margin-top: 50px;
}

/* Settings Preview */
.settings-preview {
    padding: 90px 0;
    background: var(--bg-alt);
}

.settings-screenshot {
    margin-top: 40px;
}

/* Download Section */
.download-section {
    padding: 90px 0;
}

.download-card {
    background: var(--card-bg);
    color: var(--text-color);
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    text-align: left;
    border: 1px solid var(--border-color);
}

.download-card h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 16px;
    font-weight: 700;
}

.download-card p {
    font-size: 1.15rem;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 500px;
}

.download-info {
    display: block;
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-lighter);
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}

.footer-logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-color);
}

.footer p {
    color: var(--text-lighter);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        padding: 16px 0;
    }

    .hero {
        padding: 60px 0;
    }

    .hero-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .hero-badges {
        gap: 8px;
    }

    .counter-number {
        font-size: 1.75rem;
    }

    .demo-container {
        padding: 0;
        border-radius: var(--radius-md);
    }
    
    .demo-input-area, .demo-controls, .demo-output-area {
        padding: 20px;
    }

    .mode-btn {
        padding: 6px 14px;
        font-size: 0.85rem;
    }

    .before-after-grid {
        grid-template-columns: 1fr;
    }

    .app-list {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

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

    .use-cases-list {
        column-count: 1;
    }

    .language-card {
        padding: 24px;
    }

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

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

    .faq-item {
        padding: 20px;
    }

    .download-card {
        padding: 36px 24px;
    }

    .btn-large {
        padding: 16px 28px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 1.9rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .feature-item {
        padding: 20px;
    }

    .download-card {
        padding: 28px 20px;
    }
    
    .mode-selector {
        gap: 6px;
    }
    
    .mode-btn {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
}

/* Focus states for accessibility */
a:focus,
button:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navbar,
    .download-section {
        display: none;
    }
}

/* Animation utilities */
.fade-in-element {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in-element.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .fade-in-element {
        opacity: 1;
        transform: none;
        transition: none;
    }
}