/* PIOE - Personal Intelligence & Opportunity Engine
   Modern Dark Theme with Glassmorphism */

:root {
    /* Color Palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a24;
    --bg-card: rgba(26, 26, 36, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);

    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);

    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);

    /* Status Colors */
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Category Colors */
    --cat-hackathon: #f43f5e;
    --cat-internship: #3b82f6;
    --cat-scholarship: #22c55e;
    --cat-research: #8b5cf6;
    --cat-job: #f59e0b;
    --cat-grant: #14b8a6;
    --cat-opensource: #ec4899;

    /* Spacing */
    --sidebar-width: 260px;
    --header-height: 70px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 24px 16px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    margin-bottom: 32px;
}

.logo-icon {
    font-size: 28px;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.5));
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

.nav-item:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-gradient);
    color: white;
}

.nav-item .icon {
    font-size: 16px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
}

.header-title h1 {
    font-size: 20px;
    font-weight: 600;
}

.subtitle {
    font-size: 13px;
    color: var(--text-muted);
}

.header-actions {
    display: flex;
    gap: 12px;
}

.filter-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.filter-select:hover {
    border-color: var(--border-hover);
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* Content Area */
.content-area {
    flex: 1;
    padding: 24px 32px;
    overflow-y: auto;
}

/* Stats Banner */
.stats-banner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    backdrop-filter: blur(8px);
}

.stat-card.highlight {
    background: var(--accent-gradient);
    border: none;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card.highlight .stat-label {
    color: rgba(255, 255, 255, 0.8);
}

/* Opportunity Feed */
.feed {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.loading {
    text-align: center;
    padding: 60px;
    color: var(--text-muted);
}

/* Opportunity Card */
.opportunity-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all 0.2s ease;
    cursor: pointer;
    backdrop-filter: blur(8px);
}

.opportunity-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 12px;
}

.card-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.card-category.hackathon {
    background: rgba(244, 63, 94, 0.2);
    color: var(--cat-hackathon);
}

.card-category.internship {
    background: rgba(59, 130, 246, 0.2);
    color: var(--cat-internship);
}

.card-category.scholarship {
    background: rgba(34, 197, 94, 0.2);
    color: var(--cat-scholarship);
}

.card-category.research {
    background: rgba(139, 92, 246, 0.2);
    color: var(--cat-research);
}

.card-category.job {
    background: rgba(245, 158, 11, 0.2);
    color: var(--cat-job);
}

.card-category.grant {
    background: rgba(20, 184, 166, 0.2);
    color: var(--cat-grant);
}

.card-category.open_source {
    background: rgba(236, 72, 153, 0.2);
    color: var(--cat-opensource);
}

.card-category.other {
    background: rgba(161, 161, 170, 0.2);
    color: var(--text-secondary);
}

.card-score {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: var(--text-secondary);
}

.score-bar {
    width: 60px;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.card-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.card-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.card-summary {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.deadline-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
}

.deadline-badge.urgent {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.deadline-badge.soon {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.deadline-badge.ok {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.card-actions {
    display: flex;
    gap: 8px;
}

.action-btn {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn.primary {
    background: var(--accent-gradient);
    color: white;
}

.action-btn.primary:hover {
    transform: scale(1.05);
}

.action-btn.secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.action-btn.secondary:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* Digest View */
.digest-view {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    backdrop-filter: blur(8px);
}

.digest-content {
    font-size: 14px;
    line-height: 1.8;
}

.digest-content h1 {
    font-size: 24px;
    margin-bottom: 16px;
}

.digest-content h2 {
    font-size: 18px;
    margin: 24px 0 12px;
}

.digest-content h3 {
    font-size: 16px;
    margin: 20px 0 8px;
}

.digest-content p {
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.digest-content blockquote {
    border-left: 3px solid var(--accent-primary);
    padding-left: 16px;
    color: var(--text-secondary);
    margin: 12px 0;
}

.digest-content a {
    color: var(--accent-primary);
}

.digest-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 24px 0;
}

.digest-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.digest-content th,
.digest-content td {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.digest-content th {
    background: var(--bg-tertiary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
    padding: 32px;
    z-index: 1001;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--danger);
    color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.opportunity-card {
    animation: fadeIn 0.3s ease forwards;
}

.opportunity-card:nth-child(1) {
    animation-delay: 0.05s;
}

.opportunity-card:nth-child(2) {
    animation-delay: 0.1s;
}

.opportunity-card:nth-child(3) {
    animation-delay: 0.15s;
}

.opportunity-card:nth-child(4) {
    animation-delay: 0.2s;
}

.opportunity-card:nth-child(5) {
    animation-delay: 0.25s;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }

    .main-content {
        margin-left: 200px;
    }

    .stats-banner {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .main-content {
        margin-left: 0;
    }

    .header {
        flex-direction: column;
        height: auto;
        padding: 16px;
        gap: 12px;
    }

    .content-area {
        padding: 16px;
    }

    .stats-banner {
        grid-template-columns: 1fr 1fr;
    }
}

/* PIOE 2.0: New Category Colors */
.card-category.micro_grant {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.card-category.ecosystem_grant {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.card-category.innovation_fund {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

.card-category.partnership {
    background: rgba(139, 92, 246, 0.2);
    color: #8b5cf6;
}

.card-category.collaboration {
    background: rgba(236, 72, 153, 0.2);
    color: #ec4899;
}

.card-category.pitch_event {
    background: rgba(244, 63, 94, 0.2);
    color: #f43f5e;
}

.card-category.demo_day {
    background: rgba(99, 102, 241, 0.2);
    color: #6366f1;
}

.card-category.bounty {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
}

.card-category.ambassador {
    background: rgba(234, 179, 8, 0.2);
    color: #eab308;
}

.card-category.pre_grant_signal {
    background: rgba(168, 85, 247, 0.2);
    color: #a855f7;
}

.card-category.pre_hiring_signal {
    background: rgba(6, 182, 212, 0.2);
    color: #06b6d4;
}

/* PIOE 2.0: Chat Panel */
.chat-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: none;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
    font-size: 28px;
    cursor: pointer;
    z-index: 999;
    transition: all 0.3s ease;
}

.chat-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(99, 102, 241, 0.6);
}

.chat-panel {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 380px;
    height: 500px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: none;
    flex-direction: column;
    z-index: 1000;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
}

.chat-panel.active {
    display: flex;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--accent-gradient);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    font-weight: 600;
}

.chat-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.chat-close:hover {
    opacity: 1;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-message {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    max-width: 90%;
    animation: fadeIn 0.3s ease;
}

.chat-message.user {
    background: var(--accent-gradient);
    color: white;
    align-self: flex-end;
}

.chat-message.bot {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    align-self: flex-start;
}

.chat-message p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
}

.chat-message .opp-link {
    display: block;
    background: var(--bg-card);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    margin-top: 8px;
    font-size: 12px;
    color: var(--accent-primary);
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: border-color 0.2s;
}

.chat-message .opp-link:hover {
    border-color: var(--accent-primary);
}

.chat-input-area {
    display: flex;
    gap: 8px;
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.chat-input-area input {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.chat-input-area input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.chat-input-area button {
    background: var(--accent-gradient);
    border: none;
    color: white;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s;
}

.chat-input-area button:hover {
    transform: scale(1.05);
}

@media (max-width: 480px) {
    .chat-panel {
        width: calc(100% - 32px);
        right: 16px;
        bottom: 90px;
        height: 60vh;
    }
}