.landing-page {
    min-height: 100vh;
    background: var(--bg-primary);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: visible;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    min-height: 80vh;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.gradient-text {
    background: linear-gradient(45deg, #ffffff 0%, #f0f8ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    opacity: 0.5;
    max-width: 500px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.workout-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-width: 400px;
}

.btn-workout {
    background: white;
    color: var(--accent-primary);
    border: none;
    font-weight: 700;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn-workout::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(76, 175, 80, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-workout:hover::before {
    left: 100%;
}

/* Sequential button highlight animation */
@keyframes buttonHighlight {
    0% { 
        background: white; 
        color: var(--accent-primary);
        transform: scale(1);
    }
    10% { 
        background: #4CAF50; 
        color: white;
        transform: scale(1.05);
    }
    20% { 
        background: #4CAF50; 
        color: white;
        transform: scale(1.05);
    }
    30% { 
        background: white; 
        color: var(--accent-primary);
        transform: scale(1);
    }
    100% { 
        background: white; 
        color: var(--accent-primary);
        transform: scale(1);
    }
}

/* Sequential animation - each button highlights in sequence with full pauses */
.push-btn {
    animation: buttonHighlight 6s ease-in-out 0s infinite;
}

.pull-btn {
    animation: buttonHighlight 6s ease-in-out 2s infinite;
}

.legs-btn {
    animation: buttonHighlight 6s ease-in-out 4s infinite;
}

/* Stop all animations when any button is hovered */
.workout-buttons:hover .btn-workout {
    animation: none !important;
}

.btn-workout:hover {
    background: #4CAF50 !important;
    color: white !important;
    transform: translateY(-2px) scale(1.05) !important;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.create-workout-section {
    margin-top: 1rem;
}

.btn-create-workout {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 200px;
}

.btn-create-workout:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
    transform: translateY(-2px);
}

.cta-primary {
    background: white;
    color: var(--accent-primary);
    border: none;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
    color: var(--accent-primary);
}

.cta-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
}

.cta-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
    transform: translateY(-2px);
}

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: visible;
    padding: 20px;
}

.uncle-sam-container {
    position: relative;
    max-width: 400px;
    border-radius: 20px;
    overflow: visible;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.uncle-sam-container:hover {
    transform: perspective(1000px) rotateY(-2deg) rotateX(2deg) scale(1.02);
}

.uncle-sam-image {
    width: 100%;
    height: auto;
    display: block;
    filter: brightness(0.7) contrast(1.2) saturate(0.8) hue-rotate(200deg);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    mix-blend-mode: multiply;
}

/* Features Section */
.features-section {
    padding: 6rem 0;
    background: var(--bg-primary);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.features-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -12px rgba(33, 37, 79, 0.25);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    padding: 6rem 0;
    text-align: center;
}

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

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.cta-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-actions {
        justify-content: center;
    }

    .uncle-sam-container {
        max-width: 300px;
        transform: none;
    }

    .uncle-sam-container:hover {
        transform: scale(1.02);
    }

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

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
}