/* --- Variables & Reset --- */
:root {
    --bg-color: #ffffff;
    --primary-blue: #267dff;
    --accent-yellow: #ffc900;
    --border-color: #000000;
    --text-color: #000000;
    --border-width: 3px;
    --shadow-offset: 6px;
    --sidebar-width: 280px;
}

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

body {
    font-family: 'Space Grotesk', sans-serif;
    background-color: #f8f8f8;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* --- App Layout --- */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-blue);
    border-right: var(--border-width) solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 50;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: var(--border-width) solid var(--border-color);
}

.sidebar-logo {
    height: 40px;
    display: block;
}

.sidebar-nav {
    flex: 1;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.nav-item {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 700;
    padding: 1rem;
    border: var(--border-width) solid transparent;
    transition: all 0.1s ease;
}

.nav-item:hover {
    border-color: var(--border-color);
    box-shadow: 4px 4px 0 var(--border-color);
    transform: translate(-2px, -2px);
}

.nav-item.active {
    background-color: var(--accent-yellow);
    border-color: var(--border-color);
    box-shadow: 4px 4px 0 var(--border-color);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: var(--border-width) solid var(--border-color);
}

/* --- Main Content --- */
.dashboard-content {
    flex: 1;
    padding: 3rem;
    max-width: 1200px;
}

.dashboard-header {
    margin-bottom: 3rem;
}

.dashboard-header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.badge {
    display: inline-block;
    background-color: var(--primary-blue);
    color: #fff;
    border: 2px solid var(--border-color);
    padding: 0.2rem 0.6rem;
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    box-shadow: 2px 2px 0 var(--border-color);
}

/* --- Dashboard Grid --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

/* Widgets */
.brutal-widget {
    border: var(--border-width) solid var(--border-color);
    padding: 2rem;
    box-shadow: 8px 8px 0 var(--border-color);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease;
}

.brutal-widget:hover {
    transform: translateY(-5px);
}

.widget-yellow { background-color: var(--accent-yellow); }
.widget-blue { background-color: var(--primary-blue); color: #fff; }
.widget-white { background-color: var(--bg-color); }

.widget-blue .widget-header h2 { color: #fff; }

.widget-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid currentColor;
    padding-bottom: 0.5rem;
}

.widget-header h2 {
    font-size: 1.5rem;
}

.count {
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* Lists and Cards */
.task-list, .activity-feed {
    list-style: none;
    flex: 1;
}

.task-item, .activity-item {
    background-color: rgba(255, 255, 255, 0.5);
    border: 2px solid var(--border-color);
    padding: 1rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
}

.widget-white .activity-item {
    background-color: #f8f8f8;
}

.task-name { font-size: 1.1rem; }
.task-due { font-size: 0.9rem; opacity: 0.8; }

.event-card {
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    padding: 1rem;
    margin-bottom: 1rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.event-time {
    font-weight: 700;
    border-right: 2px solid var(--border-color);
    padding-right: 1rem;
    min-width: 80px;
}

/* Live Indicator */
.live-indicator {
    width: 15px;
    height: 15px;
    background-color: #ff4d4d;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
    100% { transform: scale(1); opacity: 1; }
}

.widget-link {
    margin-top: 1.5rem;
    font-weight: 700;
    color: inherit;
    text-decoration: none;
    display: inline-block;
}

.widget-link:hover {
    text-decoration: underline;
}

/* --- Buttons --- */
.btn {
    text-decoration: none;
    font-weight: 700;
    color: var(--text-color);
    border: var(--border-width) solid var(--border-color);
    box-shadow: 4px 4px 0 var(--border-color);
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    background-color: var(--bg-color);
    transition: all 0.15s ease-in-out;
}

.btn-full { width: 100%; }
.btn:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--border-color); }

/* --- Reveal Animation --- */
.section-reveal {
    opacity: 0;
    animation: slideInRight 0.4s ease-out forwards;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .app-layout { flex-direction: column; }
    .sidebar { width: 100%; height: auto; position: static; border-right: none; border-bottom: var(--border-width) solid var(--border-color); }
    .sidebar-nav { flex-direction: row; flex-wrap: wrap; padding: 1rem; }
    .dashboard-content { padding: 1.5rem; }
}
/* Connect Classroom Widget State */
.connect-classroom-box {
    background-color: var(--bg-color);
    border: var(--border-width) solid var(--border-color);
    padding: 1rem;
    text-align: center;
    font-weight: 700;
    box-shadow: 3px 3px 0 var(--border-color);
}

.connect-classroom-box p {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.workspace-layout {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    height: 100vh;
    overflow: hidden;
}

.workspace-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.workspace-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
}

.btn-small {
    background: var(--accent-yellow);
    border: 2px solid var(--border-color);
    font-weight: bold;
    cursor: pointer;
    padding: 0.1rem 0.4rem;
    margin-left: 0.5rem;
}

.toolbar {
    display: flex;
    gap: 1rem;
}

/* --- Editor & Tabs --- */
.brutal-box {
    border: var(--border-width) solid var(--border-color);
    box-shadow: 6px 6px 0 var(--border-color);
    background: var(--bg-color);
}

.editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.editor-tabs {
    display: flex;
    border-bottom: var(--border-width) solid var(--border-color);
    background: #f0f0f0;
}

.tab {
    padding: 0.75rem 1.5rem;
    border: none;
    border-right: var(--border-width) solid var(--border-color);
    background: transparent;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
}

.tab.active {
    background: var(--bg-color);
    box-shadow: inset 0 4px 0 var(--primary-blue);
}

.realtime-textarea {
    flex: 1;
    width: 100%;
    border: none;
    resize: none;
    padding: 1.5rem;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
    outline: none;
    background: #fff;
}

/* --- Flashcards --- */
.interactive-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: #f8f8f8;
}

.flashcard {
    width: 100%;
    max-width: 500px;
    height: 300px;
    border: var(--border-width) solid var(--border-color);
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 8px 8px 0 var(--border-color);
    cursor: pointer;
}

.hidden { display: none !important; }

/* --- Chat Sidebar --- */
.chat-sidebar {
    width: 350px;
    display: flex;
    flex-direction: column;
    color: #fff;
}

.chat-header {
    padding: 1rem;
    border-bottom: var(--border-width) solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--primary-blue);
}

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    background: #fff;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.message {
    padding: 0.5rem 0.75rem;
    border: 2px solid var(--border-color);
    background: #f0f0f0;
    max-width: 90%;
    align-self: flex-start;
    font-size: 0.95rem;
}

.message.self {
    background: var(--accent-yellow);
    align-self: flex-end;
}

.message.ai {
    background: var(--primary-blue);
    color: #fff;
    align-self: flex-start;
}

.message.system {
    background: transparent;
    border: none;
    font-style: italic;
    opacity: 0.7;
    align-self: center;
    text-align: center;
}

.chat-input-area {
    display: flex;
    border-top: var(--border-width) solid var(--border-color);
}

.chat-input-area input {
    flex: 1;
    padding: 1rem;
    border: none;
    outline: none;
    font-family: inherit;
    font-size: 1rem;
}

.chat-input-area button {
    border: none;
    border-left: var(--border-width) solid var(--border-color);
    border-radius: 0;
    margin: 0;
    box-shadow: none;
}
.chat-input-area button:hover { transform: none; box-shadow: none; filter: brightness(0.9); }

/* --- Project Selector Bar --- */
.project-selector-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1.5rem;
    background-color: #f8f8f8;
}

.selector-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brutal-select {
    padding: 0.5rem 1rem;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    border: var(--border-width) solid var(--border-color);
    background-color: var(--bg-color);
    box-shadow: 2px 2px 0 var(--border-color);
    outline: none;
    cursor: pointer;
}