/* PIVOT Landing Page Styles */

/* ===== CSS VARIABLES ===== */
:root {
    /* PIVOT Color Palette */
    --primary-green: #7ED321;
    --secondary-green: #4A6E0A;
    --accent-lime: #A6F542;
    --background-dark: #000000;
    --background-gradient: linear-gradient(135deg, #000000 0%, #1A2B0A 100%);
    --text-primary: #FFFFFF;
    --text-secondary: #E8F5D0;
    --text-muted: rgba(255, 255, 255, 0.7);
    
    /* Additional Colors */
    --green-glow: rgba(126, 211, 33, 0.3);
    --green-dark: #2D4A0F;
    --overlay-dark: rgba(0, 0, 0, 0.8);
    --overlay-light: rgba(26, 43, 10, 0.9);
    
    /* Spacing */
    --section-padding: 120px 0;
    --container-padding: 0 24px;
    --border-radius: 12px;
    --border-radius-large: 24px;
    
    /* Typography */
    --font-family: 'Poppins', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.25);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.35);
    --shadow-green: 0 8px 32px rgba(126, 211, 33, 0.25);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    background: var(--background-gradient);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-lime) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== HEADER STYLES ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(126, 211, 33, 0.1);
    transition: var(--transition-normal);
}

.header.scrolled {
    background: rgba(0, 0, 0, 0.95);
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

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

.logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary-green);
    letter-spacing: -0.02em;
}

.logo-tagline {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    font-weight: 400;
    margin-top: -4px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    padding: 8px 0;
}

.nav-link:hover {
    color: var(--primary-green);
}

.auth-button {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(126, 211, 33, 0.1);
    border: 1px solid rgba(126, 211, 33, 0.2);
    color: var(--primary-green);
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.auth-button:hover {
    background: rgba(126, 211, 33, 0.2);
    border-color: var(--primary-green);
    box-shadow: var(--shadow-green);
    transform: translateY(-1px);
}

.auth-icon {
    transition: var(--transition-fast);
}

.auth-button:hover .auth-icon {
    transform: translateX(2px);
}

/* ===== HERO SECTION ===== */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.visualizer-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    cursor: pointer; /* Indicate clickable for audio interaction */
}

.visualizer-container canvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
    
    /* Initially hidden for delayed reveal */
    opacity: 0;
    transform: translateY(40px) scale(0.95);
    transition: all 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: 0s; /* Will be overridden by JavaScript */
}

.hero-overlay.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.hero-content {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-radius: var(--border-radius-large);
    padding: 64px 48px;
    border: 1px solid rgba(126, 211, 33, 0.15);
    box-shadow: var(--shadow-xl);
}

/* Alternative minimal mode for less intrusive experience */
.hero-overlay.minimal-mode {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(40px) scale(0.95);
    max-width: 700px;
    z-index: 2;
}

.hero-overlay.minimal-mode.revealed {
    transform: translateX(-50%) translateY(0) scale(1);
}

.hero-overlay.minimal-mode .hero-content {
    padding: 40px 32px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
}

/* Hover effect to indicate interactivity */
.visualizer-container:hover {
    filter: brightness(1.1);
}

/* Audio interaction hint */
.visualizer-container::after {
    content: "Click to Experience Audio";
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(126, 211, 33, 0.9);
    color: var(--background-dark);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
    opacity: 0;
    transition: var(--transition-normal);
    pointer-events: none;
    z-index: 3;
}

.visualizer-container:hover::after {
    opacity: 1;
}

/* Hide audio hint when hero content is visible */
.hero-overlay.revealed ~ .visualizer-container::after {
    display: none;
}

.hero-title {
    margin-bottom: 24px;
}

.title-main {
    display: block;
    font-size: var(--font-size-6xl);
    font-weight: 800;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-lime) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.title-subtitle {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-primary {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-green);
    color: var(--background-dark);
    border: none;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.cta-primary:hover {
    background: var(--accent-lime);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.cta-secondary {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 16px 32px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.cta-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-green);
    transform: translateY(-1px);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    animation: bounce 2s infinite;
    transition: all 0.5s ease;
    z-index: 1;
}

.scroll-text {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: 8px;
}

.scroll-arrow {
    color: var(--primary-green);
}

/* Hide scroll indicator when hero content is revealed */
.hero-overlay.revealed ~ .scroll-indicator {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* Alternative: Move scroll indicator below hero content when revealed */
.hero-section:has(.hero-overlay.revealed) .scroll-indicator {
    bottom: -60px;
    transform: translateX(-50%) translateY(0);
    opacity: 0.7;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===== FEATURES SECTION ===== */
.features-section {
    padding: var(--section-padding);
    position: relative;
    background: linear-gradient(180deg, transparent 0%, rgba(26, 43, 10, 0.3) 100%);
}

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 120px;
    padding: 60px 0;
}

.feature-block:nth-child(even) {
    direction: rtl;
}

.feature-block:nth-child(even) > * {
    direction: ltr;
}

.feature-content {
    display: flex;
    gap: 24px;
}

.feature-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: rgba(126, 211, 33, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(126, 211, 33, 0.2);
}

.feature-icon svg {
    color: var(--primary-green);
}

.feature-text {
    flex: 1;
}

.feature-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-description {
    font-size: var(--font-size-base);
    color: var(--text-muted);
    margin-bottom: 24px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.feature-list li:before {
    content: "✓";
    width: 20px;
    height: 20px;
    background: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    color: var(--background-dark);
    flex-shrink: 0;
}

/* Feature Demo Styles */
.feature-demo {
    background: rgba(0, 0, 0, 0.4);
    border-radius: var(--border-radius-large);
    padding: 40px;
    border: 1px solid rgba(126, 211, 33, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.demo-placeholder {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Calendar Preview Demo */
.calendar-preview {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.calendar-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 16px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--text-muted);
    font-size: var(--font-size-sm);
}

.calendar-item.ai-suggested {
    border-left-color: var(--primary-green);
    background: rgba(126, 211, 33, 0.1);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

/* Interaction Modes Demo */
.interaction-modes {
    display: flex;
    justify-content: space-around;
    width: 100%;
}

.mode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.05);
    transition: var(--transition-normal);
    cursor: pointer;
}

.mode-item.active {
    background: rgba(126, 211, 33, 0.2);
    color: var(--primary-green);
    transform: scale(1.05);
}

.mode-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.mode-item span {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

/* Productivity Metrics Demo */
.productivity-metrics {
    display: flex;
    justify-content: space-around;
    width: 100%;
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--primary-green);
    margin-bottom: 4px;
}

.metric-label {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ===== PRICING SECTION ===== */
.pricing-section {
    padding: var(--section-padding);
    background: rgba(26, 43, 10, 0.2);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: rgba(0, 0, 0, 0.6);
    border-radius: var(--border-radius-large);
    padding: 40px 32px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.pricing-card.featured {
    border-color: var(--primary-green);
    box-shadow: var(--shadow-green);
    transform: scale(1.05);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.plan-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-green);
    color: var(--background-dark);
    padding: 8px 24px;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.plan-header {
    text-align: center;
    margin-bottom: 32px;
}

.plan-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.plan-price {
    margin-bottom: 8px;
}

.price-amount {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--primary-green);
}

.price-period {
    font-size: var(--font-size-base);
    color: var(--text-muted);
}

.plan-description {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.plan-features {
    list-style: none;
    margin-bottom: 32px;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.plan-features li:before {
    content: "✓";
    width: 16px;
    height: 16px;
    background: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
    color: var(--background-dark);
    flex-shrink: 0;
}

.plan-button {
    width: 100%;
    padding: 16px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
}

.plan-button-starter {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.plan-button-starter:hover {
    background: rgba(255, 255, 255, 0.2);
}

.plan-button-professional {
    background: var(--primary-green);
    color: var(--background-dark);
}

.plan-button-professional:hover {
    background: var(--accent-lime);
    transform: translateY(-2px);
}

.plan-button-executive {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid #ffc107;
}

.plan-button-executive:hover {
    background: rgba(255, 193, 7, 0.3);
    transform: translateY(-1px);
}

.plan-button-enterprise {
    background: rgba(156, 39, 176, 0.2);
    color: #9c27b0;
    border: 1px solid #9c27b0;
}

.plan-button-enterprise:hover {
    background: rgba(156, 39, 176, 0.3);
    transform: translateY(-1px);
}

/* ===== FOOTER ===== */
.footer {
    background: rgba(0, 0, 0, 0.8);
    border-top: 1px solid rgba(126, 211, 33, 0.1);
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 8px;
}

.footer-description {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    max-width: 300px;
}

.footer-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 8px;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ===== MODAL STYLES ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: rgba(0, 0, 0, 0.9);
    border-radius: var(--border-radius-large);
    border: 1px solid rgba(126, 211, 33, 0.2);
    width: 90%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: var(--transition-normal);
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--primary-green);
}

.modal-body {
    padding: 32px;
}

.auth-tabs {
    display: flex;
    margin-bottom: 32px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 4px;
}

.auth-tab {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 12px 16px;
    border-radius: calc(var(--border-radius) - 4px);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.auth-tab.active {
    background: var(--primary-green);
    color: var(--background-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input {
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: 16px;
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(126, 211, 33, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.auth-submit {
    width: 100%;
    background: var(--primary-green);
    color: var(--background-dark);
    border: none;
    border-radius: var(--border-radius);
    padding: 16px;
    font-size: var(--font-size-base);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-fast);
    margin-bottom: 16px;
}

.auth-submit:hover {
    background: var(--accent-lime);
    transform: translateY(-1px);
}

.auth-link {
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.auth-link a {
    color: var(--primary-green);
    text-decoration: none;
    transition: var(--transition-fast);
}

.auth-link a:hover {
    color: var(--accent-lime);
}

/* ===== RESPONSIVE DESIGN ===== */

/* Tablet Styles */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px 0;
        --container-padding: 0 20px;
    }
    
    .feature-block {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .feature-block:nth-child(even) {
        direction: ltr;
    }
    
    .feature-content {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-4xl: 1.875rem;
        --font-size-3xl: 1.5rem;
        --section-padding: 60px 0;
        --container-padding: 0 16px;
    }
    
    .header-content {
        padding: 12px 16px;
    }
    
    .nav {
        gap: 16px;
    }
    
    .nav-link {
        display: none;
    }
    
    .hero-content {
        padding: 40px 24px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .cta-primary,
    .cta-secondary {
        justify-content: center;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
    }
    
    .footer-logo {
        align-items: center;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-header,
    .modal-body {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .auth-button .auth-text {
        display: none;
    }
    
    .title-main {
        font-size: 2rem;
    }
    
    .feature-demo {
        padding: 24px;
    }
    
    .interaction-modes {
        flex-direction: column;
        gap: 16px;
    }
    
    .productivity-metrics {
        flex-direction: column;
        gap: 20px;
    }
}

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

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

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

/* Scroll animations */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

/* Performance optimizations */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-indicator {
        animation: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-green: #00FF00;
        --text-muted: #CCCCCC;
    }
}

/* Dark mode support (already implemented) */
@media (prefers-color-scheme: dark) {
    /* Already optimized for dark theme */
}