/* CSS variables and theme configuration */
:root {
    --primary-color: #F10235;
    --primary-hover: #D0022E;
    --primary-glow: rgba(241, 2, 53, 0.15);
    
    --success-color: #2B7BE5;
    --success-hover: #1E66CA;
    
    /* Light Theme (Default) */
    --bg-color: #EDF2FA;
    --card-bg: #FFFFFF;
    --navbar-bg: #FFFFFF;
    --text-color: #344050;
    --text-secondary: #5E6E82;
    --input-bg: #F9FAFD;
    --input-border: #D8E2EF;
    --border-color: #EBF0F6;
    --jumbotron-bg: linear-gradient(180deg, #FFFFFF 0%, #EDF2FA 100%);
    --card-shadow: 0 7px 14px 0 rgba(65, 69, 88, 0.05), 0 3px 6px 0 rgba(0, 0, 0, 0.04);
}

html.dark {
    /* Dark Theme */
    --bg-color: #0F0F12;
    --card-bg: #1B1B22;
    --navbar-bg: #1B1B22;
    --text-color: #F5F7FA;
    --text-secondary: #9EA3B0;
    --input-bg: #15151A;
    --input-border: #2A2A35;
    --border-color: #23232C;
    --jumbotron-bg: linear-gradient(180deg, #1B1B22 0%, #0F0F12 100%);
    --card-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
    font-size: 1rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hidden {
    display: none !important;
}

/* Navbar Styling */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--navbar-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    transition: background-color 0.3s, border-color 0.3s;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar-brand {
    text-decoration: none;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    flex-shrink: 0;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: -0.5px;
}

.brand-name span {
    color: var(--primary-color);
}

.nav-menu-wrapper {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 20px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Theme Toggle Button */
.theme-toggle button {
    background: none;
    border: 1px solid var(--input-border);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s, background-color 0.2s, color 0.2s;
}

.theme-toggle button:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background-color: var(--primary-glow);
}

/* Show/hide icons depending on theme */
html.light .sun-icon { display: none; }
html.dark .moon-icon { display: none; }

/* Jumbotron / Hero Section */
.jumbotron {
    background: var(--jumbotron-bg);
    padding: 60px 0 80px 0;
    text-align: center;
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 400;
}

/* Downloader Search box styling */
.downloader-box {
    max-width: 800px;
    margin: 0 auto;
}

.input-group {
    display: flex;
    gap: 12px;
    position: relative;
    background: var(--card-bg);
    padding: 8px;
    border-radius: 14px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
}

.input-group input[type="text"] {
    flex: 1;
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-color);
    padding: 18px 120px 18px 20px; /* space for absolute buttons */
    border-radius: 10px;
    font-size: 1.05rem;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.input-group input[type="text"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Paste and Clear buttons positioned inside the input */
.paste-btn, .clear-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background-color 0.2s, color 0.2s;
}

.paste-btn {
    right: 150px; /* positioned inside before the main button */
    color: var(--success-color);
    background-color: rgba(43, 123, 229, 0.1);
}

.paste-btn:hover {
    background-color: rgba(43, 123, 229, 0.2);
}

.clear-btn {
    right: 235px;
    color: var(--text-secondary);
}

.clear-btn:hover {
    color: var(--primary-color);
    background-color: var(--primary-glow);
}

/* Adjust button layout for mobile later */

.btn-download {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 0 30px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.btn-download:active {
    transform: scale(0.98);
}

.download-content {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Copyright Tip styling */
.copyright-tip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 15px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    position: relative;
}

.tip-icon {
    color: var(--text-secondary);
}

.copyright-tip span {
    border-bottom: 1px dashed var(--text-secondary);
    cursor: help;
}

/* Simple Tooltip on Hover */
.tooltip-box {
    visibility: hidden;
    position: absolute;
    bottom: 25px;
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 8px 12px;
    border-radius: 6px;
    width: 250px;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.2s;
    font-size: 0.8rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.copyright-tip:hover .tooltip-box {
    visibility: visible;
    opacity: 1;
}

/* Loader / Spinner */
.loader-container {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.spinner {
    width: 45px;
    height: 45px;
    border: 4px solid rgba(241, 2, 53, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Error Message */
.error-container {
    margin-top: 30px;
    background-color: rgba(241, 2, 53, 0.1);
    border: 1px solid rgba(241, 2, 53, 0.2);
    color: var(--primary-color);
    padding: 15px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Result Section */
.result-container {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

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

.result-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 25px;
    box-shadow: var(--card-shadow);
    display: flex;
    gap: 25px;
    max-width: 700px;
    width: 100%;
    text-align: left;
}

.thumb-container {
    flex: 0 0 200px;
}

.thumb-container img {
    width: 100%;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.info-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

#video-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-color);
}

.btn-success {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    background-color: var(--success-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: background-color 0.2s, transform 0.1s;
}

.btn-success:hover {
    background-color: var(--success-hover);
}

.btn-success:active {
    transform: scale(0.98);
}

/* Notices / Avis Section */
.notices {
    padding: 40px 0;
}

.notices-card {
    background-color: var(--card-bg);
    border-left: 4px solid #F59E0B;
    padding: 20px;
    border-radius: 0 12px 12px 0;
    box-shadow: var(--card-shadow);
}

.notices-title {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #F59E0B;
    margin-bottom: 10px;
}

.notices-title h3 {
    font-size: 1.15rem;
    font-weight: 600;
}

.notices-content {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* About / FAQ Section */
.about {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
}

.flex-container {
    display: flex;
    gap: 60px;
}

.about-text, .faq-section {
    flex: 1;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-color);
    margin-bottom: 25px;
}

.section-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
}

.section-header svg {
    color: var(--primary-color);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* FAQ Accordion Styling */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 18px 20px;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    transition: background-color 0.2s;
}

.faq-question:hover {
    background-color: var(--input-bg);
}

.chevron-icon {
    transition: transform 0.2s;
    color: var(--text-secondary);
}

.faq-item.active .chevron-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer p {
    padding: 0 20px 20px 20px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 200px; /* Arbitrary enough space for simple text */
}

/* Features Section */
.features {
    padding: 60px 0 80px 0;
    border-top: 1px solid var(--border-color);
}

.section-header.centered {
    justify-content: center;
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Footer Styling */
footer {
    background-color: var(--navbar-bg);
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

footer .container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.footer-links {
    display: flex;
    list-style: none;
    gap: 20px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

/* Responsive Media Queries */
@media (max-width: 992px) {
    .flex-container {
        flex-direction: column;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .input-group {
        flex-direction: column;
        background: transparent;
        box-shadow: none;
        padding: 0;
        border: none;
    }
    
    .input-group input[type="text"] {
        padding-right: 90px; /* adjust for absolute buttons inside */
        width: 100%;
        border-radius: 10px;
        box-shadow: var(--card-shadow);
    }
    
    .paste-btn {
        right: 15px;
    }
    
    .clear-btn {
        right: 85px;
    }
    
    .btn-download {
        padding: 16px;
        border-radius: 10px;
        width: 100%;
        box-shadow: var(--card-shadow);
    }
    
    .result-card {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .thumb-container {
        flex: 0 0 auto;
    }
    
    .nav-links {
        display: none; /* simple hidden links on mobile for clean UI */
    }
    
    footer .container {
        flex-direction: column;
    }
}

/* Advertisement Banners Styling */
.ad-container {
    max-width: 800px;
    margin: 0 auto 30px auto;
    width: 100%;
}

.ad-top {
    margin-bottom: 40px;
}

.ad-bottom {
    margin-top: 40px;
}

.ad-box {
    background-color: var(--card-bg);
    border: 1px dashed var(--input-border);
    border-radius: 14px;
    padding: 20px 25px;
    position: relative;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s, border-color 0.2s;
    text-align: left;
    overflow: hidden;
}

.ad-box:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.ad-label {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    background-color: var(--input-bg);
    padding: 3px 8px;
    border-bottom-left-radius: 8px;
    border-left: 1px dashed var(--input-border);
    border-bottom: 1px dashed var(--input-border);
}

.ad-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.ad-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.ad-content p {
    font-size: 0.95rem;
    color: var(--text-color);
    margin: 0;
    flex: 1;
    line-height: 1.5;
}

.ad-content p strong {
    font-weight: 600;
}

.ad-content p span {
    color: var(--primary-color);
    font-weight: 700;
}

.ad-btn {
    display: inline-block;
    background-color: var(--primary-glow);
    color: var(--primary-color);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid var(--primary-color);
    transition: background-color 0.2s, color 0.2s;
    white-space: nowrap;
}

.ad-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

@media (max-width: 768px) {
    .ad-content {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .ad-btn {
        width: 100%;
        text-align: center;
    }
    
    .ad-box {
        padding: 25px 20px 20px 20px;
    }
}