/* ============================================
   CSS Variables & Reset
   ============================================ */

:root {
    --color-primary: #000000;
    --color-text: #000000;
    --color-text-muted: rgba(0, 0, 0, 0.6);
    --color-text-light: rgba(0, 0, 0, 0.4);
    --color-bg: #ffffff;
    --color-bg-light: #fafafa;
    --color-bg-card: #ffffff;
    --color-border: rgba(0, 0, 0, 0.1);
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 5rem;
    --spacing-xl: 8rem;
    
    --border-radius: 0px;
    --border-radius-sm: 4px;
    --border-radius-lg: 8px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* ============================================
   Animated Background Pattern
   ============================================ */

.background-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.4;
}

.pattern-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

.pattern-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.pattern-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.02), transparent);
    height: 1px;
    width: 100%;
    opacity: 0.5;
}

.line-1 {
    top: 20%;
    animation: patternMove 20s linear infinite;
}

.line-2 {
    top: 50%;
    animation: patternMove 25s linear infinite reverse;
    animation-delay: -5s;
}

.line-3 {
    top: 80%;
    animation: patternMove 30s linear infinite;
    animation-delay: -10s;
}

@keyframes patternMove {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
}

.logo:hover {
    opacity: 0.8;
}

.logo:hover .logo-icon {
    transform: scale(1.05);
}

.logo-icon {
    height: 1.2em;
    width: auto;
    object-fit: contain;
    flex-shrink: 0;
    display: block;
    transition: var(--transition);
}

.logo-paw {
    color: var(--color-text);
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    vertical-align: middle;
}

.logo-text {
    color: var(--color-text);
    font-weight: 500;
    letter-spacing: -0.02em;
}

.nav-cta {
    padding: 0.5rem 1.5rem;
    background: var(--color-text);
    color: var(--color-bg);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid var(--color-text);
    font-size: 0.9rem;
}

.nav-cta:hover {
    background: transparent;
    color: var(--color-text);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 20px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-text);
    border-radius: 50%;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.gradient-text {
    color: var(--color-text);
    font-weight: 500;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
    font-weight: 400;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-tagline {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-weight: 400;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 2rem;
    background: var(--color-text);
    color: var(--color-bg);
    text-decoration: none;
    border: 1px solid var(--color-text);
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-family);
}

.btn-primary {
    background: var(--color-text);
    color: var(--color-bg);
}

.btn-primary:hover {
    background: transparent;
    color: var(--color-text);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

.btn svg {
    transition: var(--transition);
}

.btn:hover svg {
    transform: translateX(4px);
}

.cta-note {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.scroll-indicator {
    display: none;
}

/* ============================================
   Sections
   ============================================ */

section {
    position: relative;
    padding: var(--spacing-xl) 0;
    z-index: 1;
}

/* ============================================
   Section Dividers
   ============================================ */

.section-divider {
    position: relative;
    height: 1px;
    margin: var(--spacing-md) 0;
    z-index: 1;
    overflow: hidden;
}

.section-divider::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border) 20%, var(--color-border) 80%, transparent);
}

.section-divider::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 1px;
    background: var(--color-text);
    opacity: 0.1;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 20px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.7;
    font-weight: 400;
}

/* ============================================
   Problem Section
   ============================================ */

.problem-section {
    padding: var(--spacing-xl) 0;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.problem-card {
    padding: var(--spacing-md);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 0;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
    display: flex;
    flex-direction: column;
}

.problem-card-large {
    grid-column: span 2;
}

.problem-card[data-animate="true"] {
    opacity: 1;
    transform: translateY(0);
}

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

.problem-number {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.problem-card h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.problem-card p {
    color: var(--color-text-muted);
    line-height: 1.7;
    font-size: 0.95rem;
}

.problem-card-large h3 {
    font-size: 1.5rem;
}

.problem-card-large p {
    font-size: 1rem;
}

/* ============================================
   Solution Section
   ============================================ */

.solution-list {
    max-width: 800px;
    margin: var(--spacing-lg) auto 0;
}

.solution-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    opacity: 0;
    transform: translateX(-20px);
    transition: var(--transition);
}

.solution-item:last-child {
    border-bottom: none;
}

.solution-item[data-animate="true"] {
    opacity: 1;
    transform: translateX(0);
}

.solution-item:hover {
    padding-left: var(--spacing-xs);
}

.solution-item-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    transition: var(--transition);
}

.solution-item:hover .solution-item-icon {
    background: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
    transform: scale(1.05);
}

.solution-icon {
    width: 24px;
    height: 24px;
    stroke-width: 1.5;
}

.solution-item-content {
    flex: 1;
    padding-top: 0.25rem;
}

.solution-item-content h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.solution-item-content p {
    color: var(--color-text-muted);
    line-height: 1.7;
    font-size: 0.95rem;
    margin: 0;
}

.solution-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.solution-tagline {
    font-size: 1rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

/* ============================================
   Audience Section
   ============================================ */

.audience-section {
    padding: var(--spacing-xl) 0 var(--spacing-lg) 0;
}

.audience-content {
    max-width: 1200px;
    margin: 0 auto;
}

.audience-main-text {
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(20px);
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.audience-main-text[data-animate="true"] {
    opacity: 1;
    transform: translateY(0);
}

.audience-lead {
    font-size: 1.375rem;
    line-height: 1.8;
    color: var(--color-text);
    font-weight: 400;
    margin: 0;
}

.audience-lead strong {
    font-weight: 500;
    color: var(--color-text);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.audience-card {
    padding: var(--spacing-lg);
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.audience-card-wide {
    grid-column: span 2;
}

.audience-card-full {
    grid-column: 1 / -1;
}

.audience-card[data-animate="true"] {
    opacity: 1;
    transform: translateY(0);
}

.audience-card:hover {
    border-color: var(--color-text);
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.audience-card-header {
    margin-bottom: var(--spacing-sm);
}

.audience-card-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}

.audience-card-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-muted);
    margin: 0;
    font-weight: 400;
    flex: 1;
}

.audience-card-text strong {
    font-weight: 500;
    color: var(--color-text);
}

.audience-closing {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.audience-closing[data-animate="true"] {
    opacity: 1;
    transform: translateY(0);
}

.audience-cta-text {
    font-size: 1.25rem;
    color: var(--color-text);
    margin: 0;
    font-weight: 400;
    font-style: italic;
    line-height: 1.6;
}

/* ============================================
   Promise Section
   ============================================ */

.promise-timeline {
    max-width: 700px;
    margin: var(--spacing-lg) auto 0;
    margin-bottom: 0;
    position: relative;
    padding-left: var(--spacing-md);
    padding-bottom: 0;
}

.promise-item {
    position: relative;
    padding-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(20px);
}

.promise-item:last-child {
    padding-bottom: 0;
}

.promise-item[data-animate="true"] {
    opacity: 1;
    transform: translateY(0);
}

.promise-line {
    position: absolute;
    left: -2rem;
    top: 16px;
    width: 1px;
    height: calc(100% - 1rem);
    background: var(--color-border);
    transform: translateX(-50%);
}

.promise-line-last {
    height: 0;
}

.promise-content {
    position: relative;
    padding-left: var(--spacing-md);
}

.promise-number {
    position: absolute;
    left: -2rem;
    top: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-text);
    color: var(--color-bg);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transform: translateX(-50%);
}

.promise-item h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.promise-item p {
    color: var(--color-text-muted);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ============================================
   Early Access Section
   ============================================ */

.early-access-section {
    padding: var(--spacing-lg) 0;
    position: relative;
}

.early-access-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.early-access-intro {
    margin-bottom: var(--spacing-md);
}

.early-access-form {
    background: transparent;
    border: none;
    padding: var(--spacing-md) 0 0 0;
    max-width: 600px;
    margin: 0 auto;
}

.form-row {
    margin-bottom: var(--spacing-md);
}

.form-row-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: block;
}

.form-group input,
.form-group select {
    padding: 0.875rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 400;
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-text);
    border-bottom-width: 2px;
}

.form-group input::placeholder {
    color: var(--color-text-light);
    font-weight: 400;
    opacity: 0.5;
}

.form-group select {
    cursor: pointer;
    padding-right: 2rem;
    color: var(--color-text);
}

.form-group select:not(:focus):invalid,
.form-group select option[value=""] {
    color: var(--color-text-light);
}

.form-group select option {
    color: var(--color-text);
    background: var(--color-bg);
    padding: 0.5rem;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg width='14' height='8' viewBox='0 0 14 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L7 7L13 1' stroke='%23000000' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right center;
}

.form-group select:focus {
    background-image: url("data:image/svg+xml,%3Csvg width='14' height='8' viewBox='0 0 14 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L7 7L13 1' stroke='%23000000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.form-submit {
    margin-top: var(--spacing-md);
    text-align: center;
}

.form-note {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
    font-weight: 400;
}

.form-success {
    text-align: center;
    padding: var(--spacing-lg) 0;
    background: transparent;
    border: none;
}

.success-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--color-text);
    border-radius: 0;
    color: var(--color-text);
    font-size: 1.5rem;
    font-weight: 500;
}

.form-success h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-success p {
    color: var(--color-text-muted);
}

/* ============================================
   FAQ Section
   ============================================ */

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
}

.faq-item[data-animate="true"] {
    opacity: 1;
    transform: translateY(0);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md) 0;
    background: transparent;
    border: none;
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-family);
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--color-text);
}

.faq-icon {
    width: 24px;
    height: 24px;
    transition: var(--transition);
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 0 var(--spacing-md) 0;
}

.faq-answer p {
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: transparent;
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    position: relative;
    z-index: 1;
    overflow: hidden;
    min-height: 200px;
}

.footer-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.footer-neural-pattern {
    width: 100%;
    height: 100%;
    min-height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    animation: neuralPulse 8s ease-in-out infinite;
}

@keyframes neuralPulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 0.8;
    }
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.01) 0%, transparent 100%);
    z-index: -1;
    pointer-events: none;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-logo-icon {
    height: 1em;
    width: auto;
    object-fit: contain;
    flex-shrink: 0;
    display: block;
    transition: var(--transition);
}

.footer-logo:hover .footer-logo-icon {
    transform: scale(1.05);
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a {
    position: relative;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-text);
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-text);
    transition: width 0.3s ease;
}

.footer-links a:hover::after {
    width: 100%;
}

.footer-copyright {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

/* ============================================
   Animations
   ============================================ */


@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll-triggered animations */
[data-animate="false"] {
    opacity: 0;
}

[data-animate="true"] {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Stagger animations for cards */
    .problem-card[data-animate="true"] {
        animation: fadeInUp 0.6s ease-out forwards;
    }

    .solution-item[data-animate="true"] {
        animation: slideInLeft 0.6s ease-out forwards;
    }

.promise-card[data-animate="true"] {
    animation: fadeInUp 0.6s ease-out forwards;
}

.audience-item[data-animate="true"] {
    animation: fadeInUp 0.6s ease-out forwards;
}


/* ============================================
   Privacy Page
   ============================================ */

.privacy-section {
    padding: calc(var(--spacing-xl) + 80px) 0 var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
}

.privacy-content {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-body {
    margin-top: var(--spacing-lg);
}

.privacy-intro {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.privacy-note {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm);
    background: var(--color-bg-light);
    border-left: 2px solid var(--color-text);
    line-height: 1.7;
}

.privacy-note strong {
    color: var(--color-text);
    font-weight: 500;
}

.privacy-section-item {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.privacy-section-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.privacy-section-item h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.privacy-section-item h3 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.privacy-section-item p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.privacy-section-item ul {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-md);
    list-style: none;
}

.privacy-section-item li {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
    position: relative;
    padding-left: var(--spacing-sm);
}

.privacy-section-item li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-text);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: clamp(2rem, 6vw, 3.5rem);
    }
    
    .section-title {
        font-size: clamp(1.75rem, 4vw, 2.5rem);
    }
    
    .problem-grid {
        gap: var(--spacing-md);
    }
    
    .solution-grid {
        gap: var(--spacing-md);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
        --spacing-md: 1.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Navigation */
    .nav {
        padding: var(--spacing-xs) 0;
    }
    
    .nav-content {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .logo-icon {
        height: 1em;
    }
    
    .nav-cta {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    /* Hero Section */
    .hero {
        min-height: auto;
        padding: calc(var(--spacing-lg) + 60px) 0 var(--spacing-lg) 0;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-badge {
        font-size: 0.7rem;
        padding: 0.4rem 0.8rem;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-tagline {
        font-size: 0.95rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: stretch;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Section Titles */
    .section-title {
        font-size: 1.75rem;
        line-height: 1.3;
    }
    
    .section-label {
        font-size: 0.7rem;
        padding: 0.4rem 0.8rem;
    }
    
    /* Problem Section */
    .problem-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .problem-card-large {
        grid-column: span 1;
    }
    
    .problem-card {
        padding: var(--spacing-sm);
    }
    
    /* Solution Section */
    .solution-list {
        margin-top: var(--spacing-md);
    }
    
    .solution-item {
        padding: var(--spacing-sm) 0;
        gap: var(--spacing-sm);
    }
    
    .solution-item-icon {
        width: 40px;
        height: 40px;
    }
    
    .solution-icon {
        width: 20px;
        height: 20px;
    }
    
    .solution-item-content h3 {
        font-size: 1.125rem;
    }
    
    .solution-item-content p {
        font-size: 0.9rem;
    }
    
    /* Audience Section */
    .audience-lead {
        font-size: 1.125rem;
    }
    
    .audience-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .audience-card {
        padding: var(--spacing-md);
    }
    
    .audience-card-wide {
        grid-column: span 1;
    }
    
    .audience-card-text {
        font-size: 0.95rem;
    }
    
    .audience-card {
        padding: var(--spacing-sm);
    }
    
    .audience-card-label {
        font-size: 0.7rem;
        padding: 0.2rem 0.6rem;
    }
    
    .audience-card-text {
        font-size: 0.9rem;
    }
    
    .audience-cta-text {
        font-size: 1rem;
    }
    
    /* Promise Section */
    .promise-timeline {
        padding-left: var(--spacing-sm);
    }
    
    .promise-line {
        left: -1.5rem;
        top: 16px;
        transform: translateX(-50%);
    }
    
    .promise-number {
        left: -1.5rem;
        transform: translateX(-50%);
        width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }
    
    .promise-item {
        padding-left: var(--spacing-md);
    }
    
    .promise-content h3 {
        font-size: 1.125rem;
    }
    
    .promise-content p {
        font-size: 0.95rem;
    }
    
    /* Early Access Section */
    .early-access-intro {
        font-size: 1rem;
    }
    
    .early-access-form {
        padding: var(--spacing-sm);
    }
    
    .form-row-split {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .form-group {
        margin-bottom: var(--spacing-sm);
    }
    
    /* FAQ Section */
    .faq-item {
        margin-bottom: var(--spacing-sm);
    }
    
    .faq-question {
        padding: var(--spacing-sm);
        font-size: 0.95rem;
    }
    
    .faq-answer {
        padding: 0 var(--spacing-sm) var(--spacing-sm) var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    /* Footer */
    .footer {
        padding: var(--spacing-md) 0;
    }
    
    .footer-content {
        gap: var(--spacing-sm);
    }
    
    .footer-logo {
        font-size: 1.125rem;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm);
    }
    
    .footer-copyright {
        font-size: 0.8rem;
    }
    
    /* Section Spacing */
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .section-divider {
        margin: var(--spacing-sm) 0;
    }
    
    /* Images */
    img {
        max-width: 100%;
        height: auto;
    }
    
    /* Prevent horizontal scroll */
    body {
        overflow-x: hidden;
    }
    
    /* Text overflow */
    p, h1, h2, h3, h4, h5, h6 {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    /* Footer pattern - reduce complexity on mobile */
    .footer-neural-pattern {
        opacity: 0.3;
    }
    
    /* Hide some decorative elements on mobile for performance */
    .background-pattern {
        opacity: 0.2;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 2.5rem;
        --spacing-md: 1rem;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    /* Navigation */
    .logo {
        font-size: 1.125rem;
    }
    
    .nav-cta {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    /* Hero */
    .hero {
        padding: calc(var(--spacing-lg) + 50px) 0 var(--spacing-md) 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-tagline {
        font-size: 0.875rem;
    }
    
    /* Sections */
    .section-title {
        font-size: 1.5rem;
    }
    
    section {
        padding: var(--spacing-md) 0;
    }
    
    /* Cards */
    .problem-card {
        padding: var(--spacing-xs);
    }
    
    .solution-item {
        padding: var(--spacing-xs) 0;
        gap: var(--spacing-xs);
    }
    
    .solution-item-icon {
        width: 36px;
        height: 36px;
    }
    
    .solution-icon {
        width: 18px;
        height: 18px;
    }
    
    /* Forms */
    .early-access-form {
        padding: var(--spacing-xs);
    }
    
    .form-group input,
    .form-group select {
        font-size: 0.9rem;
        padding: 0.75rem;
    }
    
    /* Footer */
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: center;
    }
    
    .footer-logo {
        font-size: 1rem;
    }
    
    .footer-copyright {
        font-size: 0.75rem;
        text-align: center;
    }
    
    /* Privacy Page */
    .privacy-section {
        padding: calc(var(--spacing-lg) + 60px) 0 var(--spacing-lg) 0;
    }
    
    .privacy-section-item h2 {
        font-size: 1.25rem;
    }
    
    .privacy-section-item p,
    .privacy-section-item li {
        font-size: 0.95rem;
    }
}