/**
 * Match Donut Chart CSS
 * Mini pie/donut chart for job card match scores
 */

/* =====================================================
   CSS Variables for Match Colors
   ===================================================== */
:root {
    --match-skills: #3B82F6;      /* Blue - Technical Skills (40%) */
    --match-experience: #10B981;   /* Green - Experience (30%) */
    --match-industry: #8B5CF6;     /* Purple - Industry/Domain (20%) */
    --match-location: #F59E0B;     /* Amber - Location (10%) */
    --match-bg: #E5E7EB;           /* Grey background */
    --match-locked: #9CA3AF;       /* Grey for locked state */
}

/* =====================================================
   Donut Chart Container
   ===================================================== */
.sffc-match-donut {
    position: relative;
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.sffc-match-donut:hover {
    transform: scale(1.08);
}

/* SVG Container */
.sffc-match-donut svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

/* Background circle */
.sffc-match-donut .donut-bg {
    fill: none;
    stroke: var(--match-bg);
    stroke-width: 5;
}

/* Segment styles */
.sffc-match-donut .donut-segment {
    fill: none;
    stroke-width: 5;
    stroke-linecap: round;
    transition: stroke-dasharray 0.5s ease, opacity 0.3s ease;
}

.sffc-match-donut .segment-skills {
    stroke: var(--match-skills);
}

.sffc-match-donut .segment-experience {
    stroke: var(--match-experience);
}

.sffc-match-donut .segment-industry {
    stroke: var(--match-industry);
}

.sffc-match-donut .segment-location {
    stroke: var(--match-location);
}

/* Center score display */
.sffc-match-donut .donut-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.sffc-match-donut .donut-score {
    font-size: 0.875rem;
    font-weight: 700;
    color: #1a3028;
    line-height: 1;
}

.sffc-match-donut .donut-score-small {
    font-size: 0.625rem;
    font-weight: 500;
    color: #666;
}

/* =====================================================
   User State Variations
   ===================================================== */

/* State: Logged out, no profile - Show lock */
.sffc-match-donut.state-locked .donut-segment {
    opacity: 0.6;
    filter: blur(2px);
}

.sffc-match-donut.state-locked .segment-skills {
    stroke: var(--match-skills);
    stroke-dasharray: 30 83 !important;
}

.sffc-match-donut.state-locked .segment-experience {
    stroke: var(--match-experience);
    stroke-dasharray: 20 93 !important;
}

.sffc-match-donut.state-locked .segment-industry {
    stroke: var(--match-industry);
    stroke-dasharray: 15 98 !important;
}

.sffc-match-donut.state-locked .segment-location {
    stroke: var(--match-location);
    stroke-dasharray: 8 105 !important;
}

.sffc-match-donut.state-locked .donut-bg {
    stroke: #F3F4F6;
}

.sffc-match-donut.state-locked .donut-lock {
    display: flex;
}

.sffc-match-donut.state-locked .donut-score {
    display: none;
}

.sffc-match-donut .donut-lock {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(59, 130, 246, 0.4);
}

.sffc-match-donut .donut-lock svg {
    width: 12px;
    height: 12px;
    color: white;
    transform: rotate(0deg);
}

/* Lock tooltip hint */
.sffc-match-donut.state-locked::after {
    content: 'Sign in to see match';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.5625rem;
    color: #6B7280;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.sffc-match-donut.state-locked:hover::after {
    opacity: 1;
}

/* State: Has localStorage profile but logged out - Show faded score with badge */
.sffc-match-donut.state-preview .donut-segment {
    opacity: 0.5;
}

.sffc-match-donut.state-preview .donut-badge {
    display: flex;
}

.sffc-match-donut .donut-badge {
    display: none;
    position: absolute;
    top: -4px;
    right: -4px;
    width: 16px;
    height: 16px;
    background: var(--match-locked);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.sffc-match-donut .donut-badge svg {
    width: 10px;
    height: 10px;
    color: white;
    transform: none;
}

/* State: Logged in, incomplete profile - Pulsing empty */
.sffc-match-donut.state-incomplete {
    animation: pulse-ring 2s infinite;
}

.sffc-match-donut.state-incomplete .donut-segment {
    stroke: var(--match-bg);
    stroke-dasharray: 0 100;
}

.sffc-match-donut.state-incomplete .donut-center {
    display: none;
}

.sffc-match-donut.state-incomplete .donut-cta {
    display: block;
}

.sffc-match-donut .donut-cta {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.5rem;
    font-weight: 600;
    color: #666;
    text-align: center;
    line-height: 1.2;
    white-space: nowrap;
}

@keyframes pulse-ring {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
    }
    70% {
        box-shadow: 0 0 0 6px rgba(59, 130, 246, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

/* State: Below threshold - Muted colors */
.sffc-match-donut.state-below-threshold .donut-segment {
    opacity: 0.4;
    filter: saturate(0.5);
}

.sffc-match-donut.state-below-threshold .donut-score {
    color: #9CA3AF;
}

/* =====================================================
   Hover Tooltip
   ===================================================== */
.sffc-match-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #1a3028;
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    pointer-events: none;
}

.sffc-match-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #1a3028;
}

.sffc-match-donut:hover .sffc-match-tooltip {
    opacity: 1;
    visibility: visible;
}

.sffc-match-tooltip .tooltip-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.25rem 0;
}

.sffc-match-tooltip .tooltip-row:not(:last-child) {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sffc-match-tooltip .tooltip-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sffc-match-tooltip .tooltip-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.sffc-match-tooltip .tooltip-dot.skills { background: var(--match-skills); }
.sffc-match-tooltip .tooltip-dot.experience { background: var(--match-experience); }
.sffc-match-tooltip .tooltip-dot.industry { background: var(--match-industry); }
.sffc-match-tooltip .tooltip-dot.location { background: var(--match-location); }

.sffc-match-tooltip .tooltip-value {
    font-weight: 600;
}

.sffc-match-tooltip .tooltip-bar {
    width: 40px;
    height: 4px;
    background: rgba(255,255,255,0.2);
    border-radius: 2px;
    overflow: hidden;
}

.sffc-match-tooltip .tooltip-bar-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* =====================================================
   Job Card Integration
   ===================================================== */
.sffc-jb-match-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    margin-top: 0.5rem;
}

.sffc-jb-match-label {
    font-size: 0.625rem;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* Match strength badges */
.sffc-match-strength {
    font-size: 0.625rem;
    font-weight: 600;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    margin-top: 0.25rem;
}

.sffc-match-strength.excellent {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.sffc-match-strength.strong {
    background: rgba(59, 130, 246, 0.1);
    color: #2563EB;
}

.sffc-match-strength.good {
    background: rgba(245, 158, 11, 0.1);
    color: #D97706;
}

.sffc-match-strength.fair {
    background: rgba(156, 163, 175, 0.1);
    color: #6B7280;
}

/* =====================================================
   Mobile Responsive
   ===================================================== */
@media (max-width: 768px) {
    .sffc-match-donut {
        width: 44px;
        height: 44px;
    }

    .sffc-match-donut .donut-score {
        font-size: 0.75rem;
    }

    .sffc-match-tooltip {
        display: none;
    }

    /* On mobile, tap to show tooltip as bottom sheet - handled in JS */
}

/* =====================================================
   Animation for loading state
   ===================================================== */
.sffc-match-donut.loading .donut-segment {
    animation: donut-spin 1.5s linear infinite;
}

@keyframes donut-spin {
    0% {
        stroke-dasharray: 0 100;
        stroke-dashoffset: 0;
    }
    50% {
        stroke-dasharray: 50 50;
        stroke-dashoffset: -25;
    }
    100% {
        stroke-dasharray: 0 100;
        stroke-dashoffset: -100;
    }
}

/* =====================================================
   Accessibility
   ===================================================== */
.sffc-match-donut:focus {
    outline: 2px solid var(--match-skills);
    outline-offset: 2px;
    border-radius: 50%;
}

.sffc-match-donut[aria-label] {
    cursor: pointer;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}