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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Noto Sans JP", sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #6366f1;
}

.nav-logo i {
    font-size: 2rem;
}

.app-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.app-icon:not([src]),
.app-icon[src=""],
.app-icon[src*="undefined"] {
    display: none;
}

.nav-logo .app-icon:not([src]) + span::before,
.nav-logo .app-icon[src=""] + span::before,
.nav-logo .app-icon[src*="undefined"] + span::before {
    content: "\f44b";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 2rem;
    margin-right: 0.5rem;
    color: #6366f1;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #6366f1;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    z-index: 2;
    position: relative;
}

.hero-content {
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

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

.hero-screenshot {
    width: auto;
    height: auto;
    max-height: 550px !important;
    max-width: 350px !important;
    transform: rotate(-5deg);
    animation: float 6s ease-in-out infinite;
    border-radius: 40px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease;
}

.hero-screenshot:hover {
    transform: rotate(-5deg) scale(1.05);
}

.phone-mockup {
    position: relative;
    transform: rotate(-5deg);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%,
    100% {
        transform: rotate(-5deg) translateY(0px);
    }
    50% {
        transform: rotate(-5deg) translateY(-20px);
    }
}

.phone-frame {
    width: 300px;
    height: 600px;
    background: #1a1a1a;
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #f8f9fa;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}

.app-ui {
    padding: 20px;
    height: 100%;
}

.status-bar {
    text-align: center;
    font-weight: 600;
    margin-bottom: 20px;
    color: #333;
}

.calendar-view h3 {
    text-align: center;
    margin-bottom: 15px;
    color: #333;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    margin-bottom: 20px;
}

.calendar-day {
    aspect-ratio: 1;
    background: #f0f0f0;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.calendar-day.active {
    background: #4ade80;
    color: white;
}

.workout-card {
    background: white;
    border-radius: 15px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.workout-card h4 {
    font-size: 14px;
    margin-bottom: 10px;
    color: #333;
}

.workout-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #6366f1;
    color: white;
    padding: 10px;
    border-radius: 10px;
}

.stats-section {
    background: white;
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.stats-section h4 {
    font-size: 14px;
    margin-bottom: 15px;
    color: #333;
}

.stats {
    display: flex;
    justify-content: space-around;
}

.stat {
    text-align: center;
}

.stat .number {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    display: block;
}

.stat .label {
    font-size: 12px;
    color: #666;
}

/* Background Shapes */
.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: #4ade80;
    top: 10%;
    right: -150px;
    animation: rotate 20s linear infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: #60a5fa;
    bottom: 20%;
    left: -100px;
    animation: rotate 15s linear infinite reverse;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: #f472b6;
    top: 50%;
    right: 20%;
    animation: rotate 25s linear infinite;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #333;
}

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

.feature-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Product Section */
.product {
    padding: 5rem 0;
    background: white;
}

.product-showcase {
    display: flex;
    flex-direction: column;
    gap: 5rem;
}

.product-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.product-item.reverse {
    direction: rtl;
}

.product-item.reverse > * {
    direction: ltr;
}

.product-content h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #333;
}

.product-content p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
}

.product-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Screenshot Styles */
.screenshot {
    width: auto;
    height: auto;
    max-height: 500px !important;
    max-width: 320px !important;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.screenshot:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

.screenshot-placeholder {
    width: 300px;
    height: 500px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.screenshot-placeholder i {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.screenshot-placeholder p {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background: #1a1a1a;
    color: white;
}

.contact .section-title {
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contact-details h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.contact-details a {
    color: #6366f1;
    text-decoration: none;
    font-size: 1.1rem;
}

.contact-details a:hover {
    text-decoration: underline;
}

.questions-section h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #6366f1;
}

.questions-section p {
    margin-bottom: 2rem;
    opacity: 0.8;
}

/* Footer */
.footer {
    background: #111;
    padding: 2rem 0;
    text-align: center;
    color: white;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #6366f1;
}

.footer-logo .app-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #6366f1;
}

/* Mobile Navigation Styles */
.nav-menu.active {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    z-index: 999;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.nav-menu a.active {
    color: #6366f1;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-screenshot {
        max-height: 450px !important;
        max-width: 280px !important;
    }

    .screenshot {
        max-height: 420px !important;
        max-width: 260px !important;
    }

    .phone-frame {
        width: 250px;
        height: 500px;
    }

    .product-item {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .nav-container {
        padding: 1rem 15px;
    }

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

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

    .hero-screenshot {
        max-height: 380px !important;
        max-width: 240px !important;
    }

    .screenshot {
        max-height: 350px !important;
        max-width: 200px !important;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}