/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #FFD700;
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #666666;
    --color-text-tertiary: #999999;
    --color-background: #ffffff;
    --color-card: #f8f8f8;
    --color-border: #e0e0e0;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

body {
    font-family: var(--font-family);
    color: var(--color-text-primary);
    background-color: var(--color-background);
    line-height: 1.6;
}

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

/* Navigation */
.navbar {
    background: linear-gradient(135deg, #13152a 0%, #1a1c3a 100%);
    border-bottom: 2px solid #F4C430;
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo h1 {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #F4C430;
    margin: 0;
    background: linear-gradient(135deg, #FFD700, #F4C430);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo img {
    height: 32px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: #b4b8c8;
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    padding: 8px 14px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
    position: relative;
}

.nav-links a svg {
    width: 16px;
    height: 16px;
    stroke-width: 2.5;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #F4C430;
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: #F4C430;
    background-color: rgba(244, 196, 48, 0.1);
}

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

.nav-cta {
    background: linear-gradient(135deg, #FFD700, #F4C430);
    color: #13152a;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.25);
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-cta:hover {
    background: linear-gradient(135deg, #ffed4e, #FFD700);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 215, 0, 0.35);
}

.nav-cta:active {
    transform: translateY(0);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 600px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.hero-overlay {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 600px;
    padding: var(--spacing-2xl) 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2xl);
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-text {
    flex: 1;
    text-align: left;
    max-width: 500px;
}

.hero-demo {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    opacity: 0.95;
}

.hero-cta {
    margin-top: var(--spacing-lg);
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    max-width: 320px;
    margin: 0 auto;
}

.phone-screen {
    position: relative;
    background: #000;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.phone-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 28px;
    background: #000;
    border-radius: 0 0 26px 26px;
    z-index: 10;
    box-shadow: inset 0 -2px 5px rgba(0, 0, 0, 0.8);
}

.timer-demo-gif {
    width: 100%;
    height: auto;
    border-radius: 32px;
    display: block;
    background: #000;

}

.image-directive {
    display: none;
}

/* Hero Media Query for Responsive */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        text-align: center;
        max-width: 100%;
    }

    .hero-demo {
        margin-top: var(--spacing-xl);
    }

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

/* App Showcase Section */
.app-showcase {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-background);
}

.app-showcase-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.app-screenshot {
    width: 100%;
    max-width: 1140px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    display: block;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

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

.hero-title-emphasis {
    color: #FFD700;
}

.hero-title-emphasis:hover {
    color: #544c02;
}

.btn-primary:hover {



    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 18px;
}

/* Features Section */
.features {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-card);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

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

.feature-card {
    background-color: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.feature-icon {
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

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

/* Workout Modes Section */
.workout-modes {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-background);
}

.modes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.mode-card {
    background-color: var(--color-card);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.mode-card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.mode-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.mode-card ul {
    list-style: none;
    padding-left: 0;
}

.mode-card li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: var(--spacing-md);
}

.mode-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* Screenshots Section */
.screenshots {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-card);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

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

.screenshot-item img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* CTA Section */
.cta {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-background);
    text-align: center;
}

.cta h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta p {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Footer */
.footer {
    background-color: var(--color-card);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-section p {
    color: var(--color-text-secondary);
    font-size: 14px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-section ul li a:hover {
    color: var(--color-text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-tertiary);
    font-size: 14px;
}

/* Image Placeholders */
.placeholder-image {
    background-color: var(--color-card);
    border: 2px dashed var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--color-text-tertiary);
    font-size: 14px;
    text-align: center;
    padding: var(--spacing-md);
}

.image-directive {
    display: none;
    font-size: 12px;
    color: var(--color-text-tertiary);
    font-style: italic;
    margin-top: var(--spacing-xs);
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        min-height: 500px;
    }

    .hero-overlay {
        min-height: 500px;
        padding: var(--spacing-xl) 0;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .app-showcase {
        padding: var(--spacing-xl) 0;
    }

    .app-screenshot {
        max-width: 350px;
    }

    .section-title {
        font-size: 28px;
    }

    .nav-links {
        gap: var(--spacing-sm);
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.back-to-top:hover {
    background-color: #ffed4e;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

@media (max-width: 480px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}
    .hero {
        min-height: 400px;
    }

    .hero-overlay {
        min-height: 400px;
        padding: var(--spacing-lg) 0;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .app-showcase {
        padding: var(--spacing-lg) 0;
    }

    .app-screenshot {
        max-width: 300px;
    }

    .nav-links a {
        font-size: 14px;
    }
}