/* Global Styles */
body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    background: #0B0D17; /* deep dark background */
    color: #E0E0E0;
}

.dashboard {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 260px;
    background: linear-gradient(180deg, #0D1117, #1A1F2B);
    color: #fff;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    border-radius: 0 30px 30px 0;
}

.sidebar-header h2 {
    font-weight: 700;
    font-size: 2rem;
    margin-bottom: 50px;
    text-align: center;
    letter-spacing: 1px;
    color: #00FFF7; /* neon cyan */
}

.sidebar-nav {
    list-style: none;
    padding: 0;
}

.sidebar-nav li {
    display: flex;
    align-items: center;
    padding: 18px 12px;
    cursor: pointer;
    font-weight: 600;
    border-radius: 12px;
    margin-bottom: 12px;
    transition: all 0.3s ease;
    font-size: 1.05rem;
}

.sidebar-nav li i {
    margin-right: 15px;
    font-size: 1.2rem;
    color: #00FFF7;
}

.sidebar-nav li:hover {
    background-color: rgba(0, 255, 247, 0.1);
    transform: translateX(5px);
}


.main-content {
    flex: 1;
    padding: 50px 40px;
    overflow-y: auto;
    background: #0B0D17;
}

/* Sections */
.section {
    display: none;
}

.section.active {
    display: block;
}

h1 {
    font-weight: 700;
    color: #00FFF7; /* neon cyan */
    margin-bottom: 25px;
    font-size: 2rem;
}

/* Card Design - calm, dark, no hover lifts */
.card {
    background: #1A1F2B;
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 40px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

/* Inputs */
textarea, input[type=text] {
    width: 100%;
    padding: 18px;
    margin-bottom: 20px;
    border-radius: 15px;
    border: 1px solid #333;
    font-size: 1rem;
    font-family: 'Roboto Mono', monospace;
    background: #121622;
    color: #E0E0E0;
    transition: all 0.3s ease;
}

textarea:focus, input[type=text]:focus {
    outline: none;
    border-color: #00FFF7;
    box-shadow: 0 0 15px rgba(0,255,247,0.2);
}

/* Buttons */
button.btn-primary {
    background: linear-gradient(135deg, #00FFF7, #0D6EFD);
    color: #0B0D17;
    padding: 15px 30px;
    border: none;
    border-radius: 15px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 6px 15px rgba(0,255,247,0.2);
    transition: all 0.3s ease;
}

button.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,255,247,0.4);
}

/* Output Cards */
.output-card {
    background: #121622;
    padding: 25px;
    border-radius: 15px;
    margin-top: 25px;
    white-space: pre-wrap;
    font-size: 1rem;
    font-family: 'Roboto Mono', monospace;
    line-height: 1.6;
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.5);
}

/* Flashcards & Quiz Items */
.output-card .card-item {
    background-color: #1A1F2B;
    padding: 18px;
    margin: 15px 0;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

/* Hint Text */
.hint {
    font-size: 0.85rem;
    color: #777;
}

/* Scrollbar Styling */
.main-content::-webkit-scrollbar {
    width: 8px;
}

.main-content::-webkit-scrollbar-track {
    background: #0B0D17;
}

.main-content::-webkit-scrollbar-thumb {
    background-color: #00FFF7;
    border-radius: 10px;
}


/* Sidebar nav items - disabled state */
.sidebar-nav li.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    position: relative;
}

/* Tooltip appears to the left of the nav item */
.sidebar-nav li.disabled:hover::after {
    content: "Upload notes first";
    position: absolute;
    right: calc(5px);   /* Slight gap to the left */
    top: 50%;
    transform: translateY(-50%);
    background: #00FFF7;
    color: #0B0D17;
    padding: 5px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0,255,247,0.4);
    pointer-events: none;
    z-index: 1000;              /* Ensure it appears above content */
}


/* Make summary output card larger */
#summaryResult {
    min-height: 400px; /* larger by default */
    font-size: 1.1rem;
    padding: 30px;
    border-radius: 20px;
    box-shadow: inset 0 4px 12px rgba(0,0,0,0.6);
    background: #121622;
    white-space: pre-wrap;
    margin-top: 20px;
}

/* Push Download button further below summary output */
#summary .btn-primary.download-btn {
    margin-top: 40px; /* increased spacing from the summary card */
    padding: 12px 24px;
    font-size: 0.95rem;
    border-radius: 12px;
}


/* Optional: smaller button size for a cleaner look */
button.btn-primary.download-btn {
    padding: 12px 24px;
    font-size: 0.95rem;
    border-radius: 12px;
}

/* Space the download button nicely below the card */
.download-container {
    margin-top: 30px; /* adds space between card and button */
    text-align: left; /* align button with content */
}