/* CSS Variables */
:root {
    --bg-color: #faf8f4;
    --fg-color: #2a2520;
    --muted-color: #8a8078;
    --seal-color: #8b3a2a;
    --seal-fg: #faf8f4;
    --rule-color: #e0d8cc;
    --card-bg: #ffffff;
    --font-serif: Georgia, 'Times New Roman', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Courier New', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--fg-color);
    line-height: 1.5;
    margin: 0;
}

.hidden {
    display: none !important;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--rule-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--muted-color);
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--rule-color);
}
.header-brand {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--seal-color);
    display: flex;
    align-items: center;
    gap: 8px;
}
.header-search {
    display: flex;
    align-items: center;
    background-color: var(--bg-color);
    border: 1px solid var(--rule-color);
    border-radius: 4px;
    padding: 4px 12px;
}
.header-search input {
    border: none;
    background: transparent;
    padding: 4px;
    font-family: var(--font-sans);
    outline: none;
    width: 250px;
}
.header-user {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    outline: none;
    transition: all 0.2s;
}
.btn-primary {
    background-color: var(--seal-color);
    color: var(--seal-fg);
}
.btn-primary:hover {
    opacity: 0.9;
}
.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--rule-color);
    color: var(--fg-color);
}
.btn-secondary:hover {
    background-color: var(--bg-color);
}

/* Login Page */
.login-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    border: 1px solid var(--rule-color);
    width: 100%;
    max-width: 400px;
    text-align: center;
}
.login-header-mono {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted-color);
    margin-bottom: 8px;
}
.login-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    color: var(--seal-color);
    margin-bottom: 12px;
}
.login-subtitle {
    font-size: 0.9rem;
    color: var(--muted-color);
    margin-bottom: 24px;
}
.login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.form-input {
    padding: 12px;
    border: 1px solid var(--rule-color);
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 1rem;
    width: 100%;
}
.error-msg {
    color: var(--seal-color);
    font-size: 0.85rem;
    margin-top: 8px;
}

/* Advisor Layout */
.advisor-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr) 380px;
    height: calc(100vh - 65px);
    overflow: hidden;
}

/* Sidebar */
.dept-sidebar {
    background-color: var(--bg-color);
    border-right: 1px solid var(--rule-color);
    padding: 16px 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
.sidebar-heading {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--muted-color);
    padding: 0 16px;
    margin-bottom: 12px;
    letter-spacing: 1px;
}
.dept-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border: none;
    background: transparent;
    text-align: left;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--fg-color);
    border-left: 2px solid transparent;
}
.dept-btn:hover {
    background-color: var(--rule-color);
}
.dept-btn.active {
    border-left-color: var(--seal-color);
    background-color: var(--card-bg);
    font-weight: 600;
}
.dept-prefix {
    font-family: var(--font-mono);
    margin-right: 8px;
}
.dept-count {
    font-size: 0.75rem;
    color: var(--muted-color);
    background-color: var(--rule-color);
    padding: 2px 6px;
    border-radius: 12px;
}

/* Course Panel */
.course-panel {
    background-color: var(--card-bg);
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
}
.panel-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--rule-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-color);
    flex-shrink: 0;
}
.panel-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--seal-color);
}
.course-list {
    flex: 1;
    overflow-y: scroll;
    padding: 0;
    min-height: 0;
    -webkit-overflow-scrolling: touch;
}
.course-row {
    padding: 20px 24px;
    border-bottom: 1px solid var(--rule-color);
    transition: background-color 0.2s;
}
.course-row:hover {
    background-color: #fdfbf7;
}
.course-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}
.course-info-col {
    flex: 1;
}
.course-action-col {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    flex-shrink: 0;
}
.course-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 4px;
}
.course-code {
    font-family: var(--font-mono);
    color: var(--seal-color);
    font-weight: bold;
}
.course-credits {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--muted-color);
}
.course-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}
.course-desc {
    font-size: 0.9rem;
    color: var(--muted-color);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.btn-enroll {
    background-color: var(--seal-color);
    color: var(--seal-fg);
    border: none;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}
.btn-enroll:hover {
    opacity: 0.9;
}
.btn-drop {
    background-color: transparent;
    color: #8b2a2a;
    border: 1px solid #8b2a2a;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}
.btn-drop:hover {
    background-color: #fdf2f2;
}
.badge-enrolled {
    background-color: #2e7d32;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 12px;
    display: inline-block;
}
.badge-completed {
    background-color: #1b5e20;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 12px;
    display: inline-block;
}
.btn-completed {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: not-allowed;
    opacity: 0.9;
}
.badge-restricted {
    background-color: #f5f0eb;
    color: #7a6e65;
    border: 1px solid #d4c8bc;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 12px;
    display: inline-block;
}
.btn-restricted {
    background-color: var(--rule-color);
    color: var(--muted-color);
    border: 1px solid var(--rule-color);
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: not-allowed;
    opacity: 0.85;
}

/* Chat Panel */
.chat-panel {
    background-color: var(--bg-color);
    border-left: 1px solid var(--rule-color);
    display: flex;
    flex-direction: column;
    min-height: 0; /* Critical for flex/grid containment */
}
.chat-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--rule-color);
    background-color: var(--card-bg);
    cursor: pointer;
    transition: background-color 0.2s;
    flex-shrink: 0;
}
.chat-header:hover {
    background-color: var(--bg-color);
}
.chat-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--seal-color);
    display: flex;
    align-items: center;
    gap: 8px;
}
.chat-subtitle {
    font-size: 0.8rem;
    color: var(--muted-color);
    margin-top: 4px;
}
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 0; /* Critical for flex overflow */
}
.chat-msg {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    line-height: 1.4;
}
.chat-msg.user {
    align-self: flex-end;
    background-color: var(--seal-color);
    color: var(--seal-fg);
    border-bottom-right-radius: 2px;
}
.chat-msg.assistant {
    align-self: flex-start;
    background-color: var(--card-bg);
    border: 1px solid var(--rule-color);
    border-bottom-left-radius: 2px;
}
.suggestion-chips {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: auto;
    padding: 0 4px; /* Ensure borders aren't clipped */
}
.suggestion-chip {
    background-color: var(--card-bg);
    border: 1px solid var(--rule-color);
    padding: 12px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--fg-color);
    text-align: left;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    white-space: normal; /* Fix text cut-off on small screens */
    word-wrap: break-word;
    width: 100%;
}
.suggestion-chip:hover {
    background-color: var(--bg-color);
    border-color: var(--seal-color);
}
.chat-input-area {
    padding: 16px;
    background-color: var(--card-bg);
    border-top: 1px solid var(--rule-color);
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}
.chat-input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--rule-color);
    border-radius: 4px;
    font-family: var(--font-sans);
    resize: none;
    height: 40px;
}

/* Rec Cards */
.rec-card {
    background-color: var(--card-bg);
    border: 1px solid var(--rule-color);
    border-radius: 6px;
    padding: 12px;
    margin-top: 12px;
}
.rec-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.rec-code {
    font-family: var(--font-mono);
    color: var(--seal-color);
    font-weight: bold;
    font-size: 0.9rem;
}
.rec-title {
    font-family: var(--font-serif);
    font-size: 1rem;
    margin-bottom: 8px;
}
.rec-fit {
    margin-bottom: 8px;
}
.fit-label {
    font-size: 0.75rem;
    color: var(--muted-color);
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
}
.fit-bar-bg {
    height: 6px;
    background-color: var(--rule-color);
    border-radius: 3px;
    overflow: hidden;
}
.fit-bar-fill {
    height: 100%;
    background-color: var(--seal-color);
    border-radius: 3px;
}
.rec-desc {
    font-size: 0.85rem;
    color: var(--muted-color);
    margin-bottom: 8px;
}
.rec-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 2px 6px;
    border: 1px solid var(--rule-color);
    border-radius: 12px;
    background-color: var(--bg-color);
}

.rec-grade {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--seal-color);
    margin-bottom: 8px;
    font-weight: 600;
}

.rec-benefits {
    font-size: 0.85rem;
    color: var(--fg-color);
    margin-bottom: 8px;
    line-height: 1.5;
}

.chat-footer-info {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--muted-color);
    padding: 8px 16px;
    border-top: 1px solid var(--rule-color);
    margin-top: 8px;
}

/* Dept name styling */
.dept-name {
    flex: 1;
    font-size: 0.85rem;
    line-height: 1.3;
}

/* Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--rule-color);
    border-top-color: var(--seal-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 20px auto;
}

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

/* Floating chat button - hidden on desktop */
.floating-chat-btn {
    display: none;
}

/* Responsive */
.mobile-nav, .mobile-overlay {
    display: none;
}

@media (max-width: 1024px) {
    .advisor-layout {
        grid-template-columns: 1fr;
    }
    .dept-sidebar, .chat-panel {
        display: none;
    }
    .mobile-nav {
        display: flex;
        padding: 12px;
        background-color: var(--bg-color);
        border-bottom: 1px solid var(--rule-color);
        gap: 12px;
    }
    .mobile-dept-select {
        flex: 1;
        padding: 8px;
        border: 1px solid var(--rule-color);
        border-radius: 4px;
        background-color: var(--card-bg);
    }
    .floating-chat-btn {
        display: block;
        position: fixed;
        bottom: 24px;
        right: 24px;
        width: 56px;
        height: 56px;
        border-radius: 28px;
        background-color: var(--seal-color);
        color: var(--seal-fg);
        border: none;
        box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        font-size: 1.5rem;
        cursor: pointer;
        z-index: 100;
    }
    .chat-panel.mobile-active {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1000;
        border: none;
    }
    .mobile-overlay {
        display: block;
        position: absolute;
        top: 16px;
        right: 16px;
        background: transparent;
        border: none;
        font-size: 1.5rem;
        cursor: pointer;
        color: var(--muted-color);
    }
}

/* Student Dashboard Styles */
.student-dashboard {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--rule-color);
    padding: 20px 24px;
    flex-shrink: 0;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.dashboard-header h3 {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
}

.upcoming-term-badge {
    background-color: var(--burgundy);
    color: white;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.dashboard-content {
    background-color: var(--bg-color);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--rule-color);
}

.dashboard-section-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.enrolled-courses-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.course-pill {
    background-color: var(--card-bg);
    border: 1px solid var(--rule-color);
    color: var(--text-color);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
}