/* ============================================
   CSS Reset & Base Styles
   ============================================ */

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

:root {
    /* Dark Mode (Default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #141420;
    --bg-tertiary: #1e1e2e;
    --bg-card: #252538;
    
    --text-primary: #f0f0f5;
    --text-secondary: #b0b0c0;
    --text-tertiary: #808090;
    
    --accent-primary: #7c3aed;
    --accent-secondary: #06d6a0;
    --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #06d6a0 100%);
    
    --border-color: #2a2a3e;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5fa;
    --bg-tertiary: #e8e8f0;
    --bg-card: #ffffff;
    
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5e;
    --text-tertiary: #7a7a8e;
    
    --accent-primary: #7c3aed;
    --accent-secondary: #06d6a0;
    
    --border-color: #d0d0e0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .data-field-input {
    color-scheme: light;
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ============================================
   Theme Toggle
   ============================================ */

.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.theme-toggle svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--accent-primary);
}

.theme-toggle .sun-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .sun-icon {
    display: block;
}

[data-theme="light"] .theme-toggle .moon-icon {
    display: none;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
}

h2 {
    font-size: clamp(2rem, 6vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 4vw, 2rem);
}

p {
    margin-bottom: 1rem;
}

em {
    font-style: italic;
    color: var(--accent-secondary);
}

/* ============================================
   Layout
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-intro {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: radial-gradient(ellipse at top, rgba(124, 58, 237, 0.15) 0%, transparent 60%);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 2rem 0;
}

.hero-title {
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    background: var(--accent-gradient);
    color: white;
    text-decoration: none;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 1.125rem;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(124, 58, 237, 0.4);
}

.cta-button svg {
    transition: var(--transition);
}

.cta-button:hover svg {
    transform: translateX(4px);
}

/* Identity Multiplier Animation */
.identity-multiplier {
    margin-top: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.identity-dot {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    position: relative;
    animation: pulse 2s ease-in-out infinite;
}

.identity-dot.real {
    background: var(--accent-primary);
    width: 2rem;
    height: 2rem;
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.6);
}

.identity-dot.real::after {
    content: 'You';
    position: absolute;
    bottom: -2rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.875rem;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.identity-dot.decoy {
    background: var(--accent-secondary);
    box-shadow: 0 0 15px rgba(6, 214, 160, 0.4);
}

.identity-dots-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    animation: multiplyIn 1.5s ease-out 0.8s backwards;
}

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

.problem-section {
    background: var(--bg-secondary);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-primary);
}

.problem-icon {
    width: 5rem;
    height: 5rem;
    margin: 0 auto 1.5rem;
    color: var(--accent-primary);
}

.problem-card h3 {
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.problem-card p {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 0;
}

.callout {
    background: var(--bg-tertiary);
    border-left: 4px solid var(--accent-secondary);
    padding: 1.5rem 2rem;
    border-radius: 0.5rem;
    font-size: 1.125rem;
    line-height: 1.8;
}

.callout strong {
    color: var(--accent-secondary);
}

/* ============================================
   How It Works Section
   ============================================ */

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    position: absolute;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 3rem;
    height: 3rem;
    background: var(--accent-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: var(--shadow);
}

.step-icon {
    width: 6rem;
    height: 6rem;
    margin: 2rem auto 1.5rem;
    color: var(--accent-secondary);
}

.step h3 {
    margin-bottom: 1rem;
}

.step p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ============================================
   Demo Section
   ============================================ */

.demo-section {
    background: var(--bg-secondary);
}

.demo-controls {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
}

.control-group {
    margin-bottom: 2rem;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group > label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.closeness-label {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slider-marker {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    min-width: 4rem;
}

.slider-marker:first-child {
    text-align: right;
}

input[type="range"] {
    flex: 1;
    width: 100%;
    height: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 1rem;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
}

input[type="range"]::-webkit-slider-runnable-track {
    height: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 1rem;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 1.75rem;
    height: 1.75rem;
    background: var(--accent-gradient);
    border-radius: 50%;
    cursor: pointer;
    margin-top: -0.625rem;
    transition: var(--transition);
}

input[type="range"]::-moz-range-track {
    height: 0.5rem;
    background: var(--bg-tertiary);
    border-radius: 1rem;
    border: none;
}

input[type="range"]::-moz-range-thumb {
    width: 1.75rem;
    height: 1.75rem;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.5);
}

/* Force horizontal slider layout on all screens */
.slider-container {
    flex-direction: row !important;
    flex-wrap: nowrap;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

.checkbox-label span {
    color: var(--text-secondary);
}

/* Noise Score */
.noise-score {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 0.75rem;
    margin-top: 2rem;
}

.noise-score-label {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.noise-score-value {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.noise-score-bar {
    height: 0.75rem;
    background: var(--bg-primary);
    border-radius: 1rem;
    overflow: hidden;
}

.noise-score-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 1rem;
    transition: width 0.5s ease;
}

/* Demo Step Labels */
.demo-step-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    margin-top: 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.demo-step-label:first-of-type {
    margin-top: 0;
}

.demo-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--accent-gradient);
    color: white;
    border-radius: 50%;
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* Signup Card */
.signup-card {
    border: 2px solid var(--accent-secondary);
    background: linear-gradient(135deg, rgba(6, 214, 160, 0.05), rgba(124, 58, 237, 0.05));
}

.signup-card-content {
    padding: 2rem;
    text-align: center;
}

.signup-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.signup-card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.signup-card-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.signup-features {
    list-style: none;
    text-align: left;
    max-width: 400px;
    margin: 0 auto 2rem;
    display: grid;
    gap: 0.5rem;
}

.signup-features li {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.signup-btn {
    display: inline-flex;
    margin: 0 auto;
}

/* Demo Cards */
.demo-card {
    background: var(--bg-card);
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.demo-card .demo-controls {
    margin-bottom: 0;
}

.demo-card .control-group {
    margin-bottom: 0;
}

/* "More…" label */
.more-label {
    cursor: default;
    opacity: 0.6;
    font-style: italic;
}

/* Your Data Section */
.your-data-section {
    border: 2px solid var(--accent-primary);
    background: var(--bg-primary);
}

.your-data-hint {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    font-weight: 400;
}

.your-data-fields {
    display: grid;
    gap: 0.75rem;
    margin-top: 1rem;
}

.data-field {
    display: grid;
    grid-template-columns: 120px 1fr;
    align-items: center;
    gap: 0.75rem;
}

.data-field-label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-field-input {
    background-color: var(--bg-secondary);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 0.5rem;
    padding: 0.6rem 0.8rem;
    color: var(--accent-secondary);
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    -webkit-appearance: none;
    appearance: none;
    color-scheme: dark;
}

.data-field-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

.data-field-input::placeholder {
    color: var(--text-tertiary);
    opacity: 0.5;
}

.your-data-disclaimer {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-align: center;
    line-height: 1.4;
}

/* Lock Toggle Switch */
.data-field-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.data-field-row .data-field-input {
    flex: 1;
}

.lock-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.lock-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.lock-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    transition: all 0.3s ease;
}

.lock-slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background: var(--text-tertiary);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.lock-switch input:checked + .lock-slider {
    background: rgba(124, 58, 237, 0.4);
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px rgba(124, 58, 237, 0.3);
}

.lock-switch input:checked + .lock-slider::before {
    transform: translateX(20px);
    background: var(--accent-primary);
}

/* More decoys card */
.more-card {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed rgba(124, 58, 237, 0.3);
    background: transparent;
    min-height: 200px;
}

.more-card-content {
    text-align: center;
    padding: 2rem;
}

.more-card-dots {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.more-card-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-primary);
    opacity: 0.5;
    animation: dotPulse 1.5s ease-in-out infinite;
}

.more-card-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.more-card-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes dotPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.3); }
}

.more-card-count {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.25rem;
}

.more-card-sub {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* Matching highlight in decoy cards */
.match-highlight {
    color: var(--accent-secondary);
    font-weight: 600;
}

/* Decoy Count Slider */
.decoy-count-label {
    font-weight: 600;
    color: var(--accent-primary);
}

/* Decoy Cards */
.decoy-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.decoy-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    animation: cardSlideIn 0.5s ease-out;
}

.decoy-card.regenerating {
    animation: cardPulse 0.5s ease-in-out;
}

.decoy-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.decoy-avatar {
    width: 3rem;
    height: 3rem;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
}

.decoy-name {
    flex: 1;
}

.decoy-name h4 {
    margin: 0 0 0.25rem 0;
    color: var(--text-primary);
}

.decoy-label {
    font-size: 0.75rem;
    color: var(--accent-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.decoy-field {
    margin-bottom: 1rem;
}

.decoy-field:last-child {
    margin-bottom: 0;
}

.decoy-field-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.25rem;
}

.decoy-field-value {
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

/* ============================================
   Trust Section
   ============================================ */

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.trust-card {
    text-align: center;
    padding: 2rem;
}

.trust-icon {
    width: 5rem;
    height: 5rem;
    margin: 0 auto 1.5rem;
    color: var(--accent-secondary);
}

.trust-card h3 {
    margin-bottom: 1rem;
}

.trust-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.trust-diagram {
    background: var(--bg-tertiary);
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
}

.blob-visual {
    display: flex;
    justify-content: center;
}

.blob-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.encrypted-blob {
    background: var(--bg-card);
    border: 2px dashed var(--accent-primary);
    border-radius: 1rem;
    padding: 2rem 3rem;
    font-family: 'Courier New', monospace;
    color: var(--accent-primary);
    font-size: 1.5rem;
    animation: blobFloat 3s ease-in-out infinite;
}

.blob-arrow {
    font-size: 2rem;
    animation: arrowBounce 2s ease-in-out infinite;
}

.blob-label {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    line-height: 1.6;
}

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

.faq-section {
    background: var(--bg-secondary);
}

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

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--accent-primary);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

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

.faq-icon {
    flex-shrink: 0;
    transition: var(--transition);
}

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

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

.footer {
    background: var(--bg-secondary);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--text-tertiary);
}

.waitlist h4 {
    margin-bottom: 0.5rem;
}

.waitlist p {
    color: var(--text-tertiary);
    margin-bottom: 1rem;
}

.waitlist-form {
    display: flex;
    gap: 0.5rem;
}

.waitlist-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
}

.waitlist-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.waitlist-form button {
    padding: 0.75rem 1.5rem;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.waitlist-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.footer-links h4 {
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

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

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

@keyframes multiplyIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes cardSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.98);
    }
}

@keyframes blobFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes arrowBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(5px);
    }
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .section {
        padding: 4rem 0;
    }
    
    .theme-toggle {
        top: 1rem;
        right: 1rem;
        width: 3rem;
        height: 3rem;
    }
    
    .hero {
        min-height: 90vh;
    }
    
    .identity-multiplier {
        flex-direction: column;
        gap: 2rem;
    }
    
    .identity-dots-group {
        gap: 0.75rem;
    }
    
    .demo-controls {
        padding: 1.5rem;
    }
    
    .slider-container {
        flex-direction: row;
    }
    
    .slider-marker {
        min-width: 3rem;
        font-size: 0.75rem;
    }
    
    .checkbox-group {
        gap: 1rem;
    }
    
    .data-field {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }
    
    .waitlist-form {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .decoy-cards {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Accessibility
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 4px;
}

/* ============================================
   Safari / iOS Fixes
   ============================================ */

/* Prevent iOS zoom on input focus (requires 16px minimum) */
@supports (-webkit-touch-callout: none) {
    input, select, textarea {
        font-size: 16px !important;
    }

    /* Safari range slider fix */
    input[type="range"] {
        -webkit-appearance: none;
        background: transparent;
        height: 2rem;
    }

    input[type="range"]::-webkit-slider-runnable-track {
        height: 0.5rem;
        background: var(--bg-tertiary);
        border-radius: 1rem;
    }

    input[type="range"]::-webkit-slider-thumb {
        -webkit-appearance: none;
        width: 1.75rem;
        height: 1.75rem;
        background: var(--accent-primary);
        border-radius: 50%;
        margin-top: -0.625rem;
        border: none;
    }

    /* Safari dark mode input fields */
    .data-field-input {
        -webkit-appearance: none;
        background-color: var(--bg-secondary) !important;
        color: var(--accent-secondary) !important;
        border-radius: 0.5rem;
        opacity: 1; /* Safari dims disabled-looking inputs */
    }

    /* Safari checkbox fix */
    input[type="checkbox"] {
        -webkit-appearance: none;
        appearance: none;
        width: 1.25rem;
        height: 1.25rem;
        border: 2px solid var(--text-tertiary);
        border-radius: 0.25rem;
        background: transparent;
        position: relative;
        cursor: pointer;
    }

    input[type="checkbox"]:checked {
        background: var(--accent-primary);
        border-color: var(--accent-primary);
    }

    input[type="checkbox"]:checked::after {
        content: '✓';
        color: white;
        font-size: 0.85rem;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }
}