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

:root {
    --primary: #6C63FF;
    --secondary: #00D9FF;
    --priority-high: #FF6B6B;
    --priority-medium: #FFA726;
    --priority-low: #66BB6A;
    --background: #F5F7FA;
    --card: #FFFFFF;
    --text-primary: #1A1A2E;
    --text-secondary: #6B7280;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 80px 0;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.1;
}

.gradient-text {
    color: var(--primary);
}

.subtitle {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 16px;
    font-weight: 500;
}

.description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.download-buttons {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 10px 20px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(108, 99, 255, 0.4);
}

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

.download-icon {
    width: 24px;
    height: 24px;
}

.version-badge {
    background: var(--card);
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    box-shadow: var(--shadow);
}

.stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.phone-frame {
    width: 280px;
    height: 580px;
    background: #1A1A2E;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
    position: relative;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 25px;
    background: #1A1A2E;
    border-radius: 0 0 20px 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--background);
    border-radius: 32px;
    overflow: hidden;
}

.phone-shadow {
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 40px;
    background: radial-gradient(ellipse, rgba(0, 0, 0, 0.2) 0%, transparent 70%);
    filter: blur(10px);
}

/* App Preview */
.app-preview {
    padding: 40px 20px 20px;
    height: 100%;
}

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

.preview-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.preview-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.preview-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.task-preview {
    background: var(--card);
    padding: 16px;
    border-radius: 12px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 4px solid;
    box-shadow: var(--shadow);
    animation: slideIn 0.5s ease-out;
}

.task-preview.high {
    border-color: var(--priority-high);
}

.task-preview.medium {
    border-color: var(--priority-medium);
}

.task-preview.low {
    border-color: var(--priority-low);
}

.task-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-secondary);
    border-radius: 6px;
    flex-shrink: 0;
}

.task-checkbox.checked {
    background: var(--primary);
    border-color: var(--primary);
    position: relative;
}

.task-checkbox.checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 14px;
}

.task-text {
    font-size: 0.85rem;
    color: var(--text-primary);
    flex: 1;
}

.task-preview.completed .task-text {
    text-decoration: line-through;
    color: var(--text-secondary);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Decoration */
.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: blob 10s ease-in-out infinite;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    bottom: -150px;
    left: -150px;
    animation-delay: -5s;
}

@keyframes blob {
    0%, 100% {
        transform: scale(1) translate(0, 0);
    }
    33% {
        transform: scale(1.1) translate(30px, -30px);
    }
    66% {
        transform: scale(0.9) translate(-20px, 20px);
    }
}

/* Features Section */
.features {
    padding: 100px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: var(--primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card);
    padding: 32px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid rgba(108, 99, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: var(--primary);
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Installation Section */
.installation {
    padding: 100px 0;
    background: var(--background);
}

.steps {
    display: grid;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 24px;
    background: var(--card);
    padding: 32px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-info {
    text-align: right;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
}

.footer-note {
    font-size: 0.9rem;
    font-style: italic;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text {
        text-align: center;
    }

    .hero-text h1 {
        font-size: 3rem;
    }

    .download-buttons {
        justify-content: center;
    }

    .stats {
        justify-content: center;
    }

    .phone-mockup {
        max-width: 280px;
        margin: 0 auto;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-info {
        text-align: center;
    }
}

@media (max-width: 640px) {
    .hero-text h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .description {
        font-size: 1rem;
    }

    .stats {
        display: none;
    }

    .section-title {
        font-size: 2rem;
    }

    .phone-frame {
        width: 240px;
        height: 500px;
    }

    .step {
        flex-direction: column;
    }
}