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

/* Video Player Overlay */
.video-player {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    display: none; /* toggled to flex in JS */
    align-items: center;
    justify-content: center;
    z-index: 4000;
}

.video-container {
    position: relative;
    width: 90vw;
    max-width: 1200px;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}

#videoElement {
    width: 100%;
    height: 100%;
    display: block;
    background: #000;
}

/* Global Full-Screen Setup */
html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden; /* Prevent body scroll */
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: black;
    background: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Full-Screen Application States */
body.dashboard-active {
    overflow: hidden;
}

body.dashboard-active .dashboard {
    display: flex;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hide other sections when dashboard is active */
body.dashboard-active #welcomeDialog,
body.dashboard-active #authSection {
    display: none !important;
}
/* Show dashboard when active */
body.dashboard-active #dashboard {
    display: flex !important;
}

.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    overflow: hidden;
}

.dialog-overlay::before,
.dialog-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.dialog-overlay::before {
    background: radial-gradient(circle at 30% 20%, rgba(229, 9, 20, 0.2), transparent 55%),
                radial-gradient(circle at 70% 25%, rgba(193, 17, 25, 0.18), transparent 60%),
                radial-gradient(circle at center, rgba(34, 34, 34, 0.8), rgba(0, 0, 0, 0.95));
    opacity: 1;
}

.dialog-overlay::after {
    background: linear-gradient(160deg, rgba(0, 0, 0, 0.9), rgba(10, 10, 10, 0.95));
}

.dialog-content {
    position: relative;
    padding: 3rem;
    border-radius: 18px;
    text-align: center;
    max-width: 90%;
    width: 420px;
    color: #141414;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(229, 9, 20, 0.15);
    backdrop-filter: blur(6px);
    background: #ffffff;
}

.dialog-content::before,
.dialog-content::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -2;
}

.dialog-content::before {
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.95), rgba(245, 245, 245, 0.75));
}

.dialog-content::after {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(248, 248, 248, 0.85));
    z-index: -1;
}

.dialog-content h1 {
    font-size: 2.6rem;
    margin-bottom: 1rem;
    color: #e50914;
}

.dialog-content p {
    font-size: 1.15rem;
    color: rgba(50, 50, 50, 0.85);
    margin-bottom: 2rem;
}

.btn-primary {
    background: #e50914;
    color: #ffffff;
    border: none;
    padding: 12px 30px;
    border-radius: 10px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.2s;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    background: #333333;
    color: #e5e5e5;
    border: none;
    padding: 8px 20px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-secondary:hover {
    background: #444444;
}

.btn-close {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #888;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.btn-close:hover {
    background: rgba(0, 0, 0, 0.1);
}

.btn-fullscreen {
    position: absolute;
    top: 15px;
    right: 70px;
    background: rgba(0, 0, 0, 0.7);
    color: #e5e5e5;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.btn-fullscreen:hover {
    background: rgba(0, 0, 0, 0.9);
}

/* Authentication Styles */
.auth-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    box-sizing: border-box;
    overflow: hidden;
}

.auth-container::before,
.auth-container::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.auth-container::before {
    background: radial-gradient(circle at 30% 20%, rgba(229, 9, 20, 0.12), transparent 55%),
                radial-gradient(circle at 70% 25%, rgba(193, 17, 25, 0.1), transparent 60%),
                radial-gradient(circle at center, rgba(20, 20, 20, 0.85), rgba(0, 0, 0, 0.95));
    opacity: 1;
}

.auth-container::after {
    background: radial-gradient(circle at center, rgba(4, 6, 14, 0.85), rgba(2, 3, 13, 0.95));
}

.auth-form {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 3.25rem 3rem;
    border-radius: 18px;
    width: auto;
    max-width: 420px;
    margin: 0;
    box-sizing: border-box;
    color: #141414;
    overflow: hidden;
    border: 1px solid rgba(229, 9, 20, 0.2);
    box-shadow: 0 20px 55px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(6px);
    background: #ffffff;
}

.auth-form::before,
.auth-form::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -2;
}

.auth-form::before {
    background: none;
}

.auth-form::after {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(245, 245, 245, 0.9));
    z-index: -1;
}

.auth-form.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

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

.auth-form h2 {
    margin-bottom: 2rem;
    text-align: center;
    font-size: 1.9rem;
    font-weight: 700;
    color: #e50914;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: rgba(30, 30, 30, 0.9);
    font-weight: 600;
    letter-spacing: 0.2px;
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid rgba(229, 9, 20, 0.35);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
    background: #ffffff;
    color: #141414;
}

.form-group input:focus {
    outline: none;
    border-color: rgba(229, 9, 20, 0.75);
    box-shadow: 0 0 0 3px rgba(229, 9, 20, 0.3);
    background: #ffffff;
}

.form-group input::placeholder {
    color: rgba(120, 120, 120, 0.6);
}


.auth-toggle {
    text-align: center;
    margin-top: 1.5rem;
    color: rgba(60, 60, 60, 0.78);
}

.auth-toggle span {
    color: #e50914;
    cursor: pointer;
    font-weight: 600;
}

.auth-toggle span:hover {
    text-decoration: underline;
}

/* Make auth buttons full width */
.auth-form .btn-primary {
    width: 100%;
}

/* Dashboard Styles */
.dashboard {
    width: 100%;
    max-width: none; /* span full width, no left/right margin */
    background: #141414;
    border-radius: 15px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100vh;
    margin: 0;
    position: relative;
    min-height: 100vh; /* Ensure minimum height */
    --header-height: 72px; /* used to offset main content when header is fixed */
    padding-top: calc(var(--header-height) + 16px); /* extra clearance below header */
}

/* Footer */
.footer {
    background: #0d0d0d;
    color: #e5e5e5;
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
    flex-shrink: 0;
    width: 100%;
    position: relative;
    bottom: 0;
    left: 0;
    right: 0;
}


.dashboard-header {
    background: linear-gradient(135deg, #050505 0%, #121212 100%);
    color: #e5e5e5;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0; /* Fixed height, never shrinks */
    width: 100%;
    position: fixed; /* keep header always visible */
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    height: var(--header-height);
    box-sizing: border-box;
}

.dashboard-header h1 {
    color: #e50914;
    font-size: 3em;
    margin-bottom: 1rem;
    font-weight: bold;
    font-size: 1.8rem;
    margin: 0; /* remove default spacing */
    line-height: 1; /* tighter vertical alignment */
    flex: 1; /* take remaining space */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis; /* prevent overflow on small screens */
}

.dashboard-main {
    flex: 1; /* Takes all remaining space */
    padding: 2rem; /* simplified: header offset handled by .dashboard */
    overflow-y: auto; /* Scroll only main content */
    display: flex;
    flex-direction: column;
    width: 100%;
    min-height: 0; /* Allow flex item to shrink below content size */
}

/* Upload Section */
.upload-section {
    margin-top: 0.5rem;
    margin-bottom: 3rem;
    flex-shrink: 0; /* Prevent upload section from shrinking */
}

.upload-section h2 {
    display: block;
    margin-bottom: 0.75rem;
    color: #f5f5f5; /* lighter for dark background */
    font-size: 1.35rem;
    font-weight: 700;
}

.upload-area {
    border: 3px dashed rgba(229, 9, 20, 0.5);
    border-radius: 10px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: #1f1f1f;
    min-height: 200px; /* Ensure minimum height */
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-area:hover {
    border-color: rgba(229, 9, 20, 0.8);
    background: #262626;
}

.upload-area p {
    color: #e5e5e5;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Files Section */
.files-section {
    flex: 1; /* Take remaining space in main content */
    display: flex;
    flex-direction: column;
    min-height: 0; /* Allow flex shrinking */
}

/* Files header: place search on the left and filter on the right */
.files-header {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.search-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    justify-content: space-between; /* push ends apart */
}

.search-input {
    flex: 1 1 auto; /* left side, takes remaining space */
    min-width: 0;
    padding: 0.6rem 0.8rem;
    border: 2px solid #333333;
    border-radius: 8px;
    background: #1b1b1b;
    color: #f5f5f5;
}

.filter-select {
    flex: 0 0 auto; /* right side, intrinsic width */
    padding: 0.6rem 0.8rem;
    border: 2px solid #333333;
    border-radius: 8px;
    background: #1b1b1b;
    color: #f5f5f5;
    min-width: 160px; /* ensure visible width */
}

.files-section h2 {
    margin-bottom: 1.5rem;
    color: #f5f5f5;
    flex-shrink: 0; /* Keep header from shrinking */
}

.files-list {
    flex: 1; /* Take remaining space for file list */
    display: flex; /* switch to list layout */
    flex-direction: column;
    gap: 0.75rem;
    overflow-y: auto; /* Scroll file list if needed */
    min-height: 200px; /* Ensure minimum height */
}

/* Center empty state to full available space */
.files-list.empty {
    display: flex;
    align-items: center;
    justify-content: center;
}

.files-list.empty .no-files {
    width: 100%;
    max-width: 900px;
    text-align: center;
    color: #bfbfbf;
}

.file-item {
    background: #1b1b1b;
    border-radius: 8px;
    border: 1px solid #2a2a2a;
    padding: 0.9rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between; /* name left, actions right */
    transition: background-color 0.2s, box-shadow 0.2s;
    cursor: pointer;
    min-width: 0; /* allow content to shrink for ellipsis */
    width: 100%;
}

.file-item:hover {
    background: #212121;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.file-info { display: flex; align-items: center; gap: 0.75rem; min-width: 0; flex: 1 1 auto; }

.file-details { display: flex; flex-direction: column; min-width: 0; }

.file-actions { display: flex; align-items: center; gap: 0.5rem; margin-left: auto; flex-shrink: 0; }

.file-info h4 {
    margin-bottom: 0.5rem;
    color: #f5f5f5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-info p {
    font-size: 0.9rem;
    color: #b0b0b0;
}

.file-actions button {
    background: #e50914;
    color: #ffffff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    margin-left: 0.5rem;
    transition: background-color 0.2s;
}
.file-actions button:hover {
    background: #f40612;
}

/* Dialog Styles */
.dialog-content h1,
.dialog-content p,
.dialog-content .btn-primary {
    position: relative;
    z-index: 1;
}

/* Footer */
.footer {
    background: #2d3748;
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: auto; /* Push footer to bottom */
    flex-shrink: 0; /* Prevent footer from shrinking */
    width: 100%;
    position: relative;
    bottom: 0;
    left: 0;
    right: 0;
}

.footer p {
    margin: 0.5rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 0.5rem; /* Reduced padding for mobile */
    }

    .no-files {
        text-align: center;
        color: #bfbfbf;
        font-style: italic;
        padding: 2rem;
        border: 2px dashed #333333;
        border-radius: 8px;
        background: #1b1b1b;
        min-height: 150px; /* Ensure minimum height even when empty */
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .dashboard {
        height: 100vh; /* Full height on mobile too */
        margin: 0;
        border-radius: 10px; /* Slightly less rounded on mobile */
    }

    .dashboard { --header-height: 64px; }

    .dashboard-header {
        padding: 0 1rem; /* keep predictable height for fixed header */
    }

    .dashboard-main {
        padding: 1rem; /* header offset handled by .dashboard */
        min-height: calc(100vh - var(--header-height)); /* Ensure minimum height for content */
    }

    .upload-area {
        padding: 2rem;
        min-height: 150px; /* Smaller minimum height on mobile */
    }

    .files-list {
        min-height: 150px; /* Smaller minimum height on mobile */
        max-height: calc(100vh - 300px); /* Limit height to prevent overflow */
    }

    /* Keep layout but reduce gaps on mobile */
    .search-container { gap: 0.5rem; }
    .filter-select { max-width: 45%; }
}