/* --- Merged Color & Font Variables --- */
:root {
    /* Dark Theme Variables (App) */
    --app-bg: #121212;
    --app-surface: #1e1e1e;
    --app-primary: #bb86fc;
    --app-primary-hover: #a362ff;
    --app-text: #e1e1e1;
    --app-text-secondary: #a0a0a0;
    --app-border: #2c2c2c;
    --app-highlight-bg: rgba(187, 134, 252, 0.8);
    --app-highlight-text: #121212;
    /* Light Theme Variables (Login) */
    --login-bg: #f4f7f9;
    --login-surface: #ffffff;
    --login-primary: #007bff;
    --login-primary-hover: #0056b3;
    --login-secondary: #f8f9fa;
    --login-secondary-hover: #e2e6ea;
    --login-text: #333;
    --login-border: #dee2e6;
    --login-error: #dc3545;
    /* Global */
    --font-family: 'Inter', sans-serif;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

/* --- Base Body Styles --- */
body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: var(--font-family);
    -webkit-font-smoothing: antialiased;
}

/* --- Utility Classes --- */
.hidden {
    display: none !important;
}

/* ==============================================
SECTION: Authentication View (Light Theme)
==============================================
*/
#auth-view {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background-color: var(--login-bg); /* Use light theme background */
}

.auth-container {
    background-color: var(--login-surface);
    color: var(--login-text);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

    .auth-container h1 {
        margin-top: 0;
        margin-bottom: 8px;
        font-size: 1.8rem;
        font-weight: 700;
    }

    .auth-container p {
        margin-bottom: 24px;
        color: #6c757d;
    }

/* --- Login Forms & Inputs --- */
#auth-view .form-group {
    margin-bottom: 1.25rem;
    text-align: left;
}

    #auth-view .form-group label {
        display: block;
        margin-bottom: 0.5rem;
        font-weight: 500;
        font-size: 0.9rem;
    }

    #auth-view .form-group input {
        width: 100%;
        padding: 10px 12px;
        font-size: 1rem;
        border: 1px solid var(--login-border);
        border-radius: 4px;
        box-sizing: border-box;
        transition: border-color 0.2s, box-shadow 0.2s;
        background-color: var(--login-surface);
        color: var(--login-text);
    }

        #auth-view .form-group input:focus {
            outline: none;
            border-color: var(--login-primary);
            box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
        }

/* --- Login Buttons --- */
#auth-view button {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 4px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
    font-family: var(--font-family);
}

#auth-view .btn-primary {
    background-color: var(--login-primary);
    color: #fff;
}

    #auth-view .btn-primary:hover {
        background-color: var(--login-primary-hover);
    }

#auth-view .btn-secondary {
    background-color: var(--login-secondary);
    color: var(--login-text);
    border: 1px solid var(--login-border);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

    #auth-view .btn-secondary:hover {
        background-color: var(--login-secondary-hover);
    }

/* --- Login Separator & Error Message --- */
.separator {
    display: flex;
    align-items: center;
    text-align: center;
    color: #6c757d;
    margin: 24px 0;
}

    .separator::before,
    .separator::after {
        content: '';
        flex: 1;
        border-bottom: 1px solid var(--login-border);
    }

    .separator:not(:empty)::before {
        margin-right: .5em;
    }

    .separator:not(:empty)::after {
        margin-left: .5em;
    }

.error-message {
    color: var(--login-error);
    min-height: 1.2em;
    font-size: 0.9rem;
    margin-top: 16px;
}


/* ==============================================
SECTION: Main Application (Dark Theme)
==============================================
*/
#app-container {
    background-color: var(--app-bg);
    color: var(--app-text);
    min-height: 100vh; /* Ensures dark background fills the entire screen height */
}

#home-view, #docs-view {
    animation: fadeIn 0.5s ease;
}

.home-header {
    padding: 1rem;
    border-bottom: 1px solid var(--app-border);
    background-color: var(--app-surface);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

    .home-header h1 {
        font-size: 1.2rem;
        font-weight: 500;
        text-align: center;
        flex-grow: 1; /* Allows the title to center properly */
    }

/* --- App Header Controls (Logout) --- */
.header-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

#user-email {
    font-size: 0.9rem;
    color: var(--app-text-secondary);
}

#logout-btn {
    width: auto;
    padding: 8px 16px;
    background-color: var(--app-surface);
    color: var(--app-text);
    border: 1px solid var(--app-border);
    cursor: pointer;
    border-radius: 6px;
}

    #logout-btn:hover {
        background-color: var(--app-bg);
    }


.home-main {
    max-width: 800px;
    margin: 4rem auto;
    padding: 0 1rem;
}

    .home-main h2 {
        font-size: 2.5rem;
        text-align: center;
        margin-bottom: 2rem;
    }

#home-search-form {
    width: 100%;
}

.search-wrapper {
    position: relative;
    display: flex;
}

#home-search-input {
    flex-grow: 1;
    font-size: 1rem;
    padding: 0.8rem 1rem;
    border: 1px solid var(--app-border);
    border-radius: 8px 0 0 8px;
    background-color: var(--app-surface);
    color: var(--app-text);
    transition: all 0.2s ease;
}

    #home-search-input:focus {
        outline: none;
        border-color: var(--app-primary);
        box-shadow: 0 0 0 3px rgba(187, 134, 252, 0.3);
        z-index: 10;
    }

#home-search-form button {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    background-color: var(--app-primary);
    color: #121212;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

    #home-search-form button:hover {
        background-color: var(--app-primary-hover);
    }

#search-suggestions {
    position: absolute;
    top: 105%;
    left: 0;
    right: 0;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.4);
    z-index: 9;
    max-height: 300px;
    overflow-y: auto;
}

.suggestion-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
}

    .suggestion-item:hover {
        background-color: var(--app-bg);
    }

    .suggestion-item small {
        color: var(--app-text-secondary);
        margin-left: 0.5rem;
    }

#category-cards-container {
    margin-top: 4rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

    .category-card:hover {
        transform: translateY(-4px);
        border-color: var(--app-primary);
    }

    .category-card h3 {
        margin-top: 0;
    }

    .category-card p {
        color: var(--app-text-secondary);
        font-size: 0.9rem;
    }

    .category-card span {
        font-size: 0.8rem;
        color: var(--app-primary);
        font-weight: 500;
    }

/* --- Docs View Styles --- */
#docs-view {
    display: flex;
    height: 100vh;
}

.docs-sidebar {
    width: 300px;
    background: var(--app-surface);
    border-right: 1px solid var(--app-border);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1rem;
    border-bottom: 1px solid var(--app-border);
}

#back-to-home-btn {
    background: none;
    border: none;
    font-size: 1rem;
    color: var(--app-text-secondary);
    cursor: pointer;
}

.sidebar-search-container {
    padding: 1rem;
    border-bottom: 1px solid var(--app-border);
}

#docs-search-input {
    width: 100%;
    padding: 0.6rem;
    background-color: var(--app-bg);
    border: 1px solid var(--app-border);
    border-radius: 6px;
    color: var(--app-text);
    font-size: 0.9rem;
    box-sizing: border-box;
    transition: all 0.2s ease-in-out;
}

    #docs-search-input:focus {
        outline: none;
        border-color: var(--app-primary);
    }

#docs-nav {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

    #docs-nav ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    #docs-nav li {
        padding: 0.7rem 1.5rem;
        cursor: pointer;
        font-size: 0.95rem;
        transition: background-color 0.2s ease, color 0.2s ease;
    }

        #docs-nav li:hover {
            background-color: var(--app-bg);
        }

        #docs-nav li.active {
            background-color: rgba(187, 134, 252, 0.1);
            color: var(--app-primary);
            font-weight: 500;
        }

.docs-content {
    flex-grow: 1;
    padding: 2rem 3rem;
    overflow-y: auto;
    position: relative;
}

    .docs-content h1, .docs-content h2, .docs-content h3 {
        border-bottom: 1px solid var(--app-border);
        padding-bottom: 0.5rem;
    }

#print-button {
    position: absolute;
    top: 2rem;
    right: 2.5rem;
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    color: var(--app-text-secondary);
    cursor: pointer;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: none;
    place-items: center;
}

    #print-button.visible {
        display: grid;
    }

mark.highlight {
    background-color: var(--app-highlight-bg);
    color: var(--app-highlight-text);
    padding: 2px 4px;
    border-radius: 4px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* --- Scrollbar & Callout Styles --- */
::-webkit-scrollbar {
    display: none;
}

* {
    scrollbar-width: none;
}

.callout {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    border-left-width: 5px;
    border-left-style: solid;
    border-radius: 8px;
    background-color: var(--app-bg);
}

.callout-title {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.callout-icon {
    margin-right: 0.75rem;
    display: flex;
    align-items: center;
}

    .callout-icon svg {
        width: 20px;
        height: 20px;
    }

.callout-content p {
    margin: 0;
    line-height: 1.6;
    color: var(--app-text-secondary);
}

.callout-warning {
    border-left-color: #f59e0b; /* Amber color */
    background-color: rgba(255, 251, 235, 0.1); /* Dark mode friendly */
}

    .callout-warning .callout-title {
        color: #f59e0b; /* Amber color */
    }