/* --- Global Styles & Variables --- */
:root {
    --primary-color: #6d3bff; /* Vibrant Purple */
    --secondary-color: #2c3e50; /* Dark Blue/Grey */
    --accent-color-1: #1abc9c; /* Turquoise */
    --accent-color-2: #f39c12; /* Orange */
    --accent-color-3: #e74c3c; /* Red */
    --text-color: #ecf0f1; /* Light Grey for text on dark backgrounds */
    --text-color-dark: #34495e; /* Dark Grey for text on light backgrounds */
    --bg-color-main: #34385a; /* Darker Purple/Blue */
    --bg-color-header: #2a2a3a;
    --bg-color-sidebar: #252535;
    --bg-color-card: #2f2f41;
    --border-color: #444455;
    --success-color: #2ecc71; /* Green */
    --pending-color: #f1c40f; /* Yellow */
    --revoked-color: #95a5a6; /* Grey */
    --failed-color: #e74c3c; /* Red */

    --font-family: 'Arial', 'Helvetica Neue', Helvetica, sans-serif; /* You can change this */
    --border-radius: 8px;
    --input-height: 40px;
    --button-padding: 10px 20px;
    --card-padding: 20px;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Optional Light Theme Variables - can be toggled with JS
:root.light-theme {
    --primary-color: #5e2bff;
    --secondary-color: #f0f2f5;
    --accent-color-1: #16a085;
    --text-color: #333;
    --text-color-dark: #111;
    --bg-color-main: #f8f9fa;
    --bg-color-header: #ffffff;
    --bg-color-sidebar: #e9ecef;
    --bg-color-card: #ffffff;
    --border-color: #dee2e6;
}
*/

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color-main);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
    transition: background-color 0.3s, color 0.3s;
}

#app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2, h3 {
    margin-bottom: 0.8em;
    font-weight: 600;
}

h1 { font-size: 1.8rem; color: #f4eeff; }
h2 { font-size: 1.5rem; color: #a881fc; }
h3 { font-size: 1.2rem; }

a {
    color: var(--accent-color-1);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

a:hover {
    color: var(--primary-color);
}

/* --- Header --- */
header {
    background-color: var(--bg-color-header);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
}

.logo-container {
    display: flex;
    align-items: center; 
    gap: 15px;
}

.logo-container h1 {
    font-size: 1.8rem; 
    color: #f4eeff; 
    font-weight: 600; 
    margin-top: 0;
    margin-bottom: 0;
    line-height: 1.2; 
}

header h1 {
    margin-bottom: 0.8em;
}

#app-logo {
    width: 64px;
    height: 64px;
    display: block;
}

.top-nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

.top-nav select, .top-nav .btn {
    padding: 8px 12px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background-color: var(--bg-color-card);
    color: var(--text-color);
    font-size: 0.9rem;
}
.top-nav select:focus, .top-nav .btn:focus {
    outline: none;
    border-color: var(--primary-color);
}


/* --- Main Layout & Sidebar --- */
.main-layout {
    display: flex;
    flex-grow: 1;
}

.sidebar {
    width: 250px;
    background-color: var(--bg-color-sidebar);
    padding: 20px 0;
    border-right: 1px solid var(--border-color);
}

.sidebar ul {
    list-style: none;
}

.sidebar ul li a {
    display: block;
    padding: 12px 20px;
    color: var(--text-color);
    font-weight: 500;
    border-left: 3px solid transparent;
}

.sidebar ul li a:hover, .sidebar ul li a.active {
    background-color: var(--bg-color-card);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

/* --- Page Content --- */
main#page-content {
    flex-grow: 1;
    padding: 30px;
    overflow-y: auto;
}

.page-section {
    display: none; /* Hidden by default, JS will show active page */
}

.page-section.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

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

/* --- Cards --- */
.card {
    background-color: var(--bg-color-card);
    padding: var(--card-padding);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 20px;
}

/* --- Forms --- */
.form-card {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input[type="number"],
.form-group input[type="text"] {
    width: 100%;
    padding: 10px;
    height: var(--input-height);
    border: 1px solid var(--border-color);
    background-color: var(--bg-color-main); /* Slightly darker than card for contrast */
    color: var(--text-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
}
.form-group input[type="number"]:focus,
.form-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--bg-color-sidebar);
}

.input-group {
    display: flex;
    gap: 10px;
}
.input-group input {
    flex-grow: 1;
}

.input-group-redeem {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 5px;
}
.input-group-redeem .readonly-group {
    flex-grow: 1;
}


.readonly-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.readonly-group span:first-child {
    min-width: 120px; /* Adjust as needed for alignment */
}
.readonly-group input[readonly] {
    background-color: var(--bg-color-sidebar);
    cursor: not-allowed;
}

.form-group small {
    display: block;
    margin-top: 5px;
    font-size: 0.85rem;
    color: var(--accent-color-1);
}


/* --- Buttons --- */
.btn {
    padding: var(--button-padding);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: background-color 0.2s, transform 0.1s;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}
.btn-primary:hover {
    background-color: color-mix(in srgb, var(--primary-color) 90%, black);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-color);
}
.btn-secondary:hover {
    background-color: color-mix(in srgb, var(--secondary-color) 90%, black);
}

.btn-cta { /* Call to action, like Get Started */
    background: linear-gradient(45deg, var(--accent-color-1), var(--primary-color));
    color: white;
    width: 100%;
    margin-top: 15px;
}
.btn-cta:hover {
    background: linear-gradient(45deg, color-mix(in srgb, var(--accent-color-1) 90%, black), color-mix(in srgb, var(--primary-color) 90%, black));
}

.btn-approve {
    background-color: var(--accent-color-2); /* Orange for approve */
    color: white;
    padding: 8px 15px;
    font-size: 0.9rem;
}
.btn-approve:hover {
    background-color: color-mix(in srgb, var(--accent-color-2) 90%, black);
}

.btn:disabled {
    background-color: #555;
    color: #aaa;
    cursor: not-allowed;
}
.btn:disabled:hover {
    background-color: #555;
}

.btn-full {
    width: 100%;
}
.btn-small {
    padding: 6px 12px;
    font-size: 0.85rem;
}


/* --- Dashboard Specific --- */
.dashboard-content {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}
.dashboard-hero {
    flex: 2;
}
.dashboard-user-info {
    flex: 1;
    min-width: 300px; /* Ensure it doesn't get too squished */
}

.hero-title .hero-line {
    display: block;
    font-size: 5.5rem; 
    font-weight: 700;
    line-height: 1.1; 
    margin-bottom: 0.2em;
}
.hero-title .hero-line-1 { color: #f4eeff; }
.hero-title .hero-line-2 { color: #a881fc; }
.hero-title .hero-line-3 { color: #f4eeff; }

.hero-subtitle {
    font-size: 2.5rem;
    color: var(--text-color);
    margin: 20px 0;
}

.hero-icons img {
    width: 48px;
    height: 48px;
    margin-right: 15px;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.asset-balance {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}
.asset-balance:last-of-type {
    border-bottom: none;
}
.asset-balance span:last-child {
    font-weight: bold;
}

.asset-balance-APY {
    display: flex;
	font-size: 1.4rem;
	color: #ed4b9e;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}
.asset-balance-APY:last-of-type {
    border-bottom: none;
}
.asset-balance-APY span:last-child {
    font-weight: bold;
}

/* --- Redemption Records Specific --- */
#records-container p {
    text-align: center;
    padding: 20px;
    color: var(--accent-color-1);
}
.records-table-container {
    margin-top: 20px;
}
.record-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); /* Responsive columns */
    gap: 10px;
    padding: 12px 10px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}
.record-row:last-child {
    border-bottom: none;
}
.record-row:hover {
    background-color: var(--bg-color-sidebar);
}
.record-row span {
    font-size: 0.9rem;
}
.status-pending { color: var(--pending-color); font-weight: bold; }
.status-success { color: var(--success-color); font-weight: bold; }
.status-revoked { color: var(--revoked-color); font-weight: bold; }
.status-failed { color: var(--failed-color); font-weight: bold; }


/* --- ABOUT US Specific --- */
.about-us-content h3 {
    margin-top: 25px;
    margin-bottom: 10px;
    color: var(--accent-color-1);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 5px;
}
.about-us-content p {
    margin-bottom: 15px;
    text-align: justify;
}

/* --- Modals --- */
.modal {
    display: none; /* Hidden by default */
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6); /* Dimmed background */
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-color-card);
    margin: auto;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 500px;
    position: relative;
    text-align: center;
    animation: slideInModal 0.3s ease-out;
}

@keyframes slideInModal {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close-modal-btn {
    color: #aaa;
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}
.close-modal-btn:hover, .close-modal-btn:focus {
    color: var(--text-color);
}

.wallet-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}
.wallet-option {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    background-color: var(--bg-color-sidebar);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-color);
    font-size: 1rem;
    cursor: pointer;
}
.wallet-option:hover {
    background-color: var(--secondary-color);
    border-color: var(--primary-color);
}

.confirmation-buttons {
    margin-top: 25px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

/* Spinner for Loading Modal */
.spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 4px solid var(--primary-color);
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

#explorer-link {
    display: block;
    margin-top: 15px;
    color: var(--accent-color-1);
    font-size: 0.9rem;
}

/* --- Announcement Modal Styles --- */
.announcement-modal-content {
    max-width: 95vw; 
    max-height: 95vh; 
    width: auto; 
    height: auto;
    padding: 15px;
    overflow: hidden; 
    background-color: var(--bg-color-card); 
    position: relative; 
}

#announcement-image {
    display: block;  
    max-width: 100%;/
    max-height: calc(95vh - 60px); 
   /* 或者更簡單： max-height: 100%; 如果 .announcement-modal-content 已正確限制高度 */
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--border-radius); 
}

#close-announcement-modal-btn {
    z-index: 1001; 
    /* 如果預設的關閉按鈕顏色在公告圖片上不明顯，可以調整 */
    /* color: #fff; */
    /* background-color: rgba(0, 0, 0, 0.5); */
    /* border-radius: 50%; */
    /* padding: 2px 8px; */
    /* line-height: 1; */
}

/* --- Footer Styles --- */
footer#app-footer {
    background-color: var(--bg-color-header); /* 您可以選擇與 header 相同的背景色，或稍作調整 */
    color: var(--text-color);
    padding: 25px 30px; /* 上下內邊距略大一些 */
    border-top: 1px solid var(--border-color);
    text-align: center;
    margin-top: auto; /* 如果 #app-container 是 flex column 佈局，這會將 footer 推至底部 */
}

.footer-content {
    max-width: 1200px; 
    margin: 0 auto;
    display: flex;
    flex-direction: column; /* 圖標和版權文字垂直排列 */
    align-items: center;
    gap: 15px; /* 圖標組和版權文字之間的間距 */
}

.footer-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px; /* 圖標之間的間距 */
}

.footer-icons a img {
    width: 32px;  /* 圖標大小 */
    height: 32px; /* 圖標大小 */
    opacity: 0.75; /* 預設透明度，增加雅緻感 */
    transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
}

.footer-icons a:hover img {
    opacity: 1; /* 滑鼠懸停時完全不透明 */
    transform: scale(1.15); /* 滑鼠懸停時略微放大 */
}

.copyright {
    font-size: 0.85rem;
    opacity: 0.7; /* 版權文字稍淺，不那麼突出 */
}


/* --- Responsive Design --- */
@media (max-width: 992px) { /* Medium devices (tablets) */
    .dashboard-content {
        flex-direction: column;
    }
    .dashboard-user-info {
        width: 100%;
        max-width: none;
    }
}

@media (max-width: 768px) { /* Small devices (landscape phones, etc.) */
    header {
        flex-direction: column;
        padding: 15px;
    }
    .logo-container {
        margin-bottom: 10px;
    }
    .top-nav {
        width: 100%;
        justify-content: space-around;
        flex-wrap: wrap; /* Allow wrapping */
    }
    .top-nav > div { /* Ensure dropdowns don't get too squished */
        min-width: 120px;
        margin-bottom: 5px; /* Space if they wrap */
    }
    #connect-wallet-btn {
      flex-grow: 1; /* Allow connect button to take space */
      min-width: 150px;
    }


    .main-layout {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 0; /* Remove vertical padding */
    }
    .sidebar ul {
        display: flex; /* Horizontal scroll for mobile nav */
        overflow-x: auto;
        white-space: nowrap; /* Prevent wrapping of li items */
        padding: 10px 0;
    }
    .sidebar ul li a {
        padding: 10px 15px;
        border-left: none; /* Remove side border */
        border-bottom: 3px solid transparent; /* Use bottom border for active state */
    }
    .sidebar ul li a.active {
        border-bottom-color: var(--primary-color);
        border-left-color: transparent;
    }

    main#page-content {
        padding: 20px;
    }

    .hero-title .hero-line {
        font-size: 3.5rem;
    }
    .hero-subtitle {
        font-size: 1.2rem;
    }

    .modal-content {
        width: 95%;
        padding: 20px;
    }
    .record-row {
        grid-template-columns: 1fr; /* Stack columns on small screens */
        text-align: left;
        padding: 15px;
    }
    .record-row span {
        margin-bottom: 5px;
    }
    .record-row span:last-child { margin-bottom: 0; }
    .record-row .btn { width: 100%; margin-top: 10px;}
	
    footer#app-footer {
        padding: 20px 20px;
    }
    .footer-icons {
        gap: 25px; /* 在較小螢幕上縮小圖標間距 */
    }
    .footer-icons a img {
        width: 28px;
        height: 28px;
    }
    .copyright {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) { /* Extra small devices (portrait phones) */
    #app-logo {
        width: 48px;
        height: 48px;
    }
    header h1 {
        font-size: 1.3rem;
    }
    .top-nav {
        gap: 8px; /* Reduce gap */
    }
     .top-nav select, .top-nav .btn {
        font-size: 0.8rem; /* Smaller font in header */
        padding: 6px 8px;
    }

    .hero-title .hero-line {
        font-size: 1.8rem;
    }
}