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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: white;
    min-height: 100vh;
    padding: 0;
    color: #1D1D1F;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    background: white;
    min-height: 100vh;
}

header {
    background: white;
    color: #1D1D1F;
    padding: 48px 64px 24px;
}

header h1 {
    font-size: 2em;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.125rem;
    color: #6E6E73;
    font-weight: 400;
}

/* Tabs */
.tabs {
    display: inline-flex;
    background: white;
    padding: 0 64px;
    gap: 0;
    position: relative;
    align-items: center;
    height: 68px;
}

.tabs::before {
    content: '';
    position: absolute;
    left: 64px;
    top: 50%;
    transform: translateY(-50%);
    height: 44px;
    width: calc(100% - 129px);
    border: 1px solid #E5E5E5;
    border-radius: 22px;
    pointer-events: none;
    z-index: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.tab-highlight {
    position: absolute;
    height: 42px;
    background: linear-gradient(135deg, #FFF3E6 0%, #FFEACC 100%);
    border-radius: 21px;
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    z-index: 1;
    box-shadow: 0 0 12px rgba(255, 140, 0, 0.15);
    top: 50%;
    transform: translateY(-50%);
}

.tab-btn {
    padding: 0 24px;
    background: transparent;
    border: none;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.4s cubic-bezier(0.4, 0, 0.2, 1), text-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    color: #6E6E73;
    position: relative;
    z-index: 2;
    white-space: nowrap;
    display: flex;
    align-items: center;
    height: 42px;
}

.tab-btn:hover {
    color: #1D1D1F;
}

.tab-btn.active {
    color: #FF8C00;
}

.tab-content {
    display: none;
    padding: 24px 64px 48px;
    max-width: 1200px;
}

.tab-content.active {
    display: block;
}

.tab-content h2 {
    margin-bottom: 16px;
}

/* Form Elements */
.form-group {
    margin-bottom: 24px;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: #1D1D1F;
    font-size: 0.9375rem;
}

input[type="text"],
textarea,
select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #D2D2D7;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s ease;
    background: #FAFAFA;
}

input[type="text"]:hover,
textarea:hover,
select:hover {
    border-color: #B3B3B8;
}

input[type="text"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: #1D1D1F;
    background: white;
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.05);
}

textarea {
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    resize: vertical;
    line-height: 1.6;
}

code {
    background: #F5F5F7;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
    color: #1D1D1F;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 980px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-right: 12px;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: #0071E3;
    color: white;
}

.btn-primary:hover {
    background: #0077ED;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 113, 227, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: #F5F5F7;
    color: #1D1D1F;
    border: 1px solid #D2D2D7;
}

.btn-secondary:hover {
    background: #E8E8ED;
}

.btn-danger {
    background: #FF3B30;
    color: white;
}

.btn-danger:hover {
    background: #FF453A;
    box-shadow: 0 4px 16px rgba(255, 59, 48, 0.3);
}

.form-actions {
    margin-top: 24px;
}

/* Status Messages */
.status-message {
    margin-top: 20px;
    padding: 16px 20px;
    border-radius: 12px;
    display: none;
    font-size: 0.9375rem;
}

.status-message.success {
    display: block;
    background: #D1F4E0;
    color: #006B3D;
    border: 1px solid #A8E6C5;
}

.status-message.error {
    display: block;
    background: #FFE5E5;
    color: #D70015;
    border: 1px solid #FFCCCC;
}

/* Instructions */
.instructions {
    background: #F5F5F7;
    padding: 20px 24px;
    border-radius: 12px;
    margin-bottom: 32px;
    line-height: 1.7;
    font-size: 0.9375rem;
    color: #1D1D1F;
}

.instructions strong {
    font-weight: 600;
}

/* Stats */
.stats {
    margin-top: 40px;
    padding: 32px;
    background: #FAFAFA;
    border-radius: 16px;
    border: 1px solid #E5E5E5;
}

.stats h3 {
    margin-bottom: 16px;
    color: #1D1D1F;
    font-size: 1.25rem;
    font-weight: 600;
}

.stats p {
    font-size: 1rem;
    color: #6E6E73;
    margin-bottom: 12px;
}

.stats strong {
    color: #1D1D1F;
    font-weight: 600;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #E5E5E5;
    border-radius: 10px;
    overflow: hidden;
    margin-top: 12px;
}

.progress-fill {
    height: 100%;
    background: #0071E3;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 10px;
}

/* AI Search */
.ai-search-container {
    margin-bottom: 32px;
    padding: 32px 32px 20px;
    background: linear-gradient(135deg, #F5F5F7 0%, #FAFAFA 100%);
    border-radius: 16px;
    border: 1px solid #E5E5E5;
}

.ai-search-header {
    display: flex;
    align-items: center;
    gap: 16px;
}

.ai-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.ai-search-input {
    flex: 1;
    padding: 14px 20px;
    border: 1px solid #D2D2D7;
    border-radius: 12px;
    font-size: 1rem;
    background: white;
    transition: all 0.2s ease;
}

.ai-search-input:focus {
    outline: none;
    border-color: #0071E3;
    box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.1);
}

.ai-search-input.searching {
    animation: rainbowGlow 4s linear infinite;
}

@keyframes rainbowGlow {
    0% {
        border-color: #8000FF;
        box-shadow: 0 0 20px rgba(128, 0, 255, 0.6), inset 0 0 10px rgba(128, 0, 255, 0.2);
    }
    16.67% {
        border-color: #0080FF;
        box-shadow: 0 0 20px rgba(0, 128, 255, 0.6), inset 0 0 10px rgba(0, 128, 255, 0.2);
    }
    33.33% {
        border-color: #00D084;
        box-shadow: 0 0 20px rgba(0, 208, 132, 0.6), inset 0 0 10px rgba(0, 208, 132, 0.2);
    }
    50% {
        border-color: #FFD700;
        box-shadow: 0 0 20px rgba(255, 215, 0, 0.6), inset 0 0 10px rgba(255, 215, 0, 0.2);
    }
    66.67% {
        border-color: #FF8C00;
        box-shadow: 0 0 20px rgba(255, 140, 0, 0.6), inset 0 0 10px rgba(255, 140, 0, 0.2);
    }
    83.33% {
        border-color: #FF0080;
        box-shadow: 0 0 20px rgba(255, 0, 128, 0.6), inset 0 0 10px rgba(255, 0, 128, 0.2);
    }
    100% {
        border-color: #8000FF;
        box-shadow: 0 0 20px rgba(128, 0, 255, 0.6), inset 0 0 10px rgba(128, 0, 255, 0.2);
    }
}

.ai-search-status {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9375rem;
    display: none;
}

.ai-search-status.searching {
    display: block;
    background: #F0F7FF;
    color: #0071E3;
    border: 1px solid #B3D9FF;
}

.ai-search-status.error {
    display: block;
    background: #FFE5E5;
    color: #D70015;
    border: 1px solid #FFCCCC;
}

.ai-search-results {
    margin-top: 20px;
}

.ai-result-summary {
    padding: 16px 20px;
    background: white;
    border-radius: 12px;
    margin-bottom: 20px;
    border-left: 4px solid #0071E3;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: #1D1D1F;
}

/* AI Match Cards */
.ai-match-card {
    border-left: 4px solid #0071E3 !important;
    background: linear-gradient(135deg, #FAFCFF 0%, #FFFFFF 100%);
    position: relative;
}

.match-score {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.score-circle-wrapper {
    position: relative;
    width: 80px;
    height: 80px;
    flex-shrink: 0;
}

.score-circle {
    transform: rotate(90deg) scaleX(-1);
}

.score-circle-bg {
    fill: none;
    stroke: #E5E7EB;
    stroke-width: 6;
}

.score-circle-progress {
    fill: none;
    stroke-width: 6;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
}

.score-high .score-circle-progress {
    stroke: #10B981;
}

.score-medium .score-circle-progress {
    stroke: #F59E0B;
}

.score-low .score-circle-progress {
    stroke: #EF4444;
}

.score-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.75rem;
    font-weight: 700;
    opacity: 0;
    animation: fadeInNumber 0.4s ease forwards 0.6s;
}

@keyframes fadeInNumber {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.score-label {
    font-size: 0.8125rem;
    font-weight: 600;
    opacity: 0;
    animation: fadeIn 0.3s ease forwards 0.9s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 0.8;
    }
}

.score-high {
    color: #10B981;
}

.score-medium {
    color: #F59E0B;
}

.score-low {
    color: #EF4444;
}

.match-relevance {
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    border: 1px solid #93C5FD;
    border-radius: 12px;
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: #1E40AF;
}

.match-relevance strong {
    color: #1E3A8A;
}

.match-highlights {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.highlight-item {
    background: #FFFAEB;
    border-left: 3px solid #F59E0B;
    padding: 10px 14px;
    border-radius: 8px;
}

.highlight-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.highlight-section {
    font-size: 0.6875rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: #92400E;
    background: #FEF3C7;
    padding: 2px 8px;
    border-radius: 4px;
}

.highlight-reason {
    font-size: 0.8125rem;
    color: #78350F;
    font-style: italic;
}

.highlight-text {
    font-size: 0.9375rem;
    color: #1D1D1F;
    font-weight: 500;
    line-height: 1.4;
}

.inline-match-badge {
    display: inline-block;
    background: linear-gradient(135deg, #FFFBEB 0%, #FEF3C7 100%);
    color: #92400E;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
    margin-left: 6px;
    border: 1px solid #FDE68A;
    white-space: nowrap;
    vertical-align: middle;
}

.match-badge-with-popup {
    position: relative;
    display: inline-block;
    margin-left: 6px;
}

.match-badge-with-popup .match-popup {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: #1F2937;
    color: #F3F4F6;
    font-size: 0.75rem;
    padding: 8px 12px;
    border-radius: 6px;
    white-space: normal;
    width: max-content;
    max-width: 280px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
    text-align: center;
    line-height: 1.4;
}

.match-badge-with-popup .match-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #1F2937;
}

.match-badge-with-popup:hover .match-popup {
    visibility: visible;
    opacity: 1;
    transform: translateX(-50%) translateY(-4px);
}

.attendee-section h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.attendee-headline {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.attendee-school {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
}

.divider {
    margin: 32px 0;
    text-align: center;
    position: relative;
}

.divider::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: #E5E5E5;
}

.divider span {
    position: relative;
    background: white;
    padding: 0 16px;
    color: #86868B;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Filters */
.filters {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: 16px;
    margin-bottom: 40px;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.search-input {
    padding: 14px 16px;
}

/* Attendees List */
.attendees-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 24px;
}

.attendee-card {
    background: white;
    border: 1px solid #E5E5E5;
    border-radius: 16px;
    padding: 28px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.attendee-card:hover {
    border-color: #D2D2D7;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.delete-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 28px;
    height: 28px;
    border: none;
    background: #F5F5F7;
    color: #86868B;
    border-radius: 50%;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s ease;
    opacity: 0;
}

.attendee-card:hover .delete-btn {
    opacity: 1;
}

.delete-btn:hover {
    background: #FF3B30;
    color: white;
    transform: scale(1.1);
}

.attendee-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #F5F5F7;
}

.attendee-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid #F5F5F7;
    margin-bottom: 16px;
}

.attendee-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
}

.attendee-name {
    font-size: 1.375rem;
    font-weight: 600;
    color: #1D1D1F;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.attendee-headline {
    color: #6E6E73;
    font-size: 0.9375rem;
    margin-bottom: 8px;
    line-height: 1.5;
}

.attendee-location {
    color: #86868B;
    font-size: 0.875rem;
}

.attendee-school {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #FAFAFA;
    color: #0071E3;
    padding: 6px 14px;
    border-radius: 980px;
    font-size: 0.8125rem;
    font-weight: 500;
    margin-top: 12px;
    align-self: flex-start;
}

.attendee-school-logo {
    width: 20px;
    height: 20px;
    object-fit: contain;
    flex-shrink: 0;
}

/* Elite University Colors */
.attendee-school.harvard {
    background: #FCE8EA;
    color: #A41034;
}

.attendee-school.yale {
    background: #DDE9F7;
    color: #00356b;
}

.attendee-school.princeton {
    background: #FFF0E8;
    color: #FF671F;
}

.attendee-school.brown {
    background: #F2EBE5;
    color: #4E3629;
}

.attendee-school.dartmouth {
    background: #DFF5ED;
    color: #00693e;
}

.attendee-school.cornell {
    background: #FAE5E5;
    color: #B31B1B;
}

.attendee-school.columbia {
    background: #F2F8FB;
    color: #5B9FBF;
}

.attendee-school.upenn {
    background: #FAF0F0;
    color: #990000;
}

.attendee-school.uchicago {
    background: #FADEDE;
    color: #800000;
}

.attendee-school.stanford {
    background: #FAE5E5;
    color: #8C1515;
}

.attendee-school.mit {
    background: #FAEAEC;
    color: #A31F34;
}

.attendee-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #F5F5F7;
}

.attendee-section:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.attendee-section h4 {
    font-size: 0.75rem;
    color: #6E6E73;
    margin-bottom: 12px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.experience-item,
.education-item {
    margin-bottom: 16px;
}

.experience-item:last-child,
.education-item:last-child {
    margin-bottom: 0;
}

.item-title {
    font-weight: 600;
    color: #1D1D1F;
    font-size: 0.9375rem;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.item-company,
.item-degree {
    color: #6E6E73;
    font-size: 0.875rem;
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.item-duration {
    color: #86868B;
    font-size: 0.8125rem;
}

.item-description {
    color: #6E6E73;
    font-size: 0.875rem;
    margin-top: 6px;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 6px;
    flex-wrap: wrap;
}

.expand-btn {
    background: transparent;
    border: none;
    color: #0071E3;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    padding: 8px 0;
    margin-top: 8px;
    transition: color 0.2s ease;
}

.expand-btn:hover {
    color: #0077ED;
}

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

.skill-tag {
    background: #F5F5F7;
    padding: 6px 12px;
    border-radius: 980px;
    font-size: 0.8125rem;
    color: #1D1D1F;
    border: 1px solid #E5E5E5;
}

.linkedin-link {
    display: inline-flex;
    align-items: center;
    margin-top: 16px;
    color: #0071E3;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.linkedin-link:hover {
    color: #0077ED;
}

.no-results {
    text-align: center;
    padding: 80px 40px;
    color: #86868B;
    font-size: 1.125rem;
}

/* Import/Export Panel */
.import-export-panel .section {
    margin-bottom: 32px;
    padding: 32px;
    background: #FAFAFA;
    border-radius: 16px;
    border: 1px solid #E5E5E5;
}

.import-export-panel h3 {
    color: #1D1D1F;
    margin-bottom: 12px;
    font-size: 1.25rem;
    font-weight: 600;
}

.import-export-panel p {
    color: #6E6E73;
    font-size: 0.9375rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.warning {
    color: #FF3B30;
    font-weight: 500;
}

input[type="file"] {
    margin-bottom: 16px;
    padding: 12px;
    border: 1px solid #D2D2D7;
    border-radius: 8px;
    font-size: 0.9375rem;
    background: white;
}

/* Responsive */
@media (max-width: 1024px) {
    header {
        padding: 32px 40px 24px;
    }

    .tabs {
        padding: 0 40px;
        gap: 24px;
    }

    .tab-content {
        padding: 32px 40px;
    }
}

@media (max-width: 768px) {
    header {
        padding: 24px 20px 20px;
    }

    header h1 {
        font-size: 2em;
    }

    .tabs {
        padding: 0 20px;
        gap: 16px;
        overflow-x: auto;
    }

    .tab-content {
        padding: 24px 20px;
    }

    .filters {
        grid-template-columns: 1fr;
    }

    .attendees-list {
        grid-template-columns: 1fr;
    }

    .attendee-card {
        padding: 20px;
    }
}