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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #F5F5F5; /* Changed */
    color: #424242; /* Changed */
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

#wisheasy-app {
    width: 100%;
}

.app-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
    margin: 0 auto;  /* 꽉 찬 #wisheasy-app 내부에서 스스로 수평 중앙 정렬 */
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* App Header */
.app-header {
    text-align: center;
    margin-bottom: 40px;
}

.app-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 0;
}

.app-title {
    font-size: 32px;
    font-weight: 700;
    color: #424242; /* Changed */
    margin-bottom: 8px;
}

.app-subtitle {
    font-size: 16px;
    color: #6E6E6E; /* Changed */
    font-weight: 400;
}

/* Main Card */
.main-card {
    width: 100%;
    background: white;
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid #eeeeee;
}

/* Card Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.login-btn, .mypage-btn {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #424242; /* Changed */
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.login-btn:hover, .mypage-btn:hover {
    background: #e9ecef;
    border-color: #dee2e6;
}

.login-btn i, .mypage-btn i {
    font-size: 12px;
}

/* Main Buttons */
.main-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.main-btn {
    width: 100%;
    background: #f8f9fa;
    border: none;
    border-radius: 16px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
    text-decoration: none;
}

.main-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

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

/* Route Button */
.route-btn {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
}

.route-btn:hover {
    background: #e9ecef;
    border-color: #dee2e6;
}

.route-btn .btn-icon {
    width: 48px;
    height: 48px;
    background: #0052A4; /* Changed */
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

/* Station Button */
.station-btn {
    background: #e3f2fd;
    border: 2px solid #bbdefb;
}

.station-btn:hover {
    background: #bbdefb;
    border-color: #90caf9;
}

.station-btn .btn-icon {
    width: 48px;
    height: 48px;
    background: #2E9AFE; /* Changed */
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

.btn-text {
    font-size: 18px;
    font-weight: 600;
    color: #424242; /* Changed */
}

/* Responsive Design */
@media (max-width: 480px) {
    .app-container {
        padding: 16px;
    }

    .app-icon {
        width: 70px;
        height: 70px;
    }

    .icon-text {
        font-size: 28px;
    }

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

    .app-subtitle {
        font-size: 14px;
    }

    .main-card {
        padding: 20px;
    }

    .main-btn {
        padding: 20px;
    }

    .btn-icon {
        width: 44px !important;
        height: 44px !important;
        font-size: 18px !important;
    }

    .btn-text {
        font-size: 16px;
    }
}

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

.app-header {
    animation: fadeInUp 0.6s ease-out;
}

.main-card {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* Button Hover Effects */
.main-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

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

/* Focus States for Accessibility */
.main-btn:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

.back-btn:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

/* Loading State */
.main-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.main-btn.loading .btn-text::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 16px;
    width: 100%;
    max-width: 360px;
    animation: fadeInUp 0.4s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e9ecef;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.close-btn {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: #666;
    padding: 4px;
    border-radius: 4px;
}

.close-btn:hover {
    background: #f8f9fa;
}

.modal-body {
    padding: 30px 20px;
    text-align: center;
}

.google-login-btn {
    width: 100%;
    background: #4285F4;
    color: white;
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.google-login-btn:hover {
    background: #357ae8;
}

.google-login-btn i {
    font-size: 20px;
}