/* ===============================================
   ROOT VARIABLES & RESET
   =============================================== */

:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --bg: #ffffff;
    --surface: #f9fafb;
    --surface-2: #f3f4f6;
    --text: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --border: #e5e7eb;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===============================================
   LAYOUT & CONTAINERS
   =============================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ===============================================
   HEADER & NAVIGATION
   =============================================== */

.header {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo {
    color: var(--primary);
    width: 28px;
    height: 28px;
}

.nav-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text);
}

.nav-stats {
    padding: var(--space-xs) var(--space-md);
    background: var(--surface);
    border-radius: 100px;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.rate-limit-text {
    font-weight: 500;
}

/* ===============================================
   HERO SECTION
   =============================================== */

.hero {
    background: linear-gradient(135deg, var(--surface) 0%, var(--bg) 100%);
    padding: var(--space-3xl) 0;
    text-align: center;
}

.hero-title {
    font-size: clamp(var(--text-2xl), 5vw, var(--text-4xl));
    font-weight: 700;
    margin-bottom: var(--space-sm);
    background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

/* ===============================================
   SEARCH CONTAINER
   =============================================== */

.search-container {
    display: flex;
    gap: var(--space-md);
    max-width: 500px;
    margin: 0 auto;
}

.search-input {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: var(--text-base);
    font-family: var(--font-sans);
    transition: var(--transition);
    background: var(--bg);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-button {
    padding: var(--space-md) var(--space-xl);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.search-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.search-button:active {
    transform: translateY(0);
}

/* ===============================================
   ERROR & LOADING STATES
   =============================================== */

.error-message {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    color: var(--error);
    font-size: var(--text-sm);
}

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl) 0;
    gap: var(--space-lg);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--surface-2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    color: var(--text-secondary);
    font-size: var(--text-lg);
}

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

/* ===============================================
   MAIN CONTENT
   =============================================== */

.main-content {
    padding: var(--space-2xl) 0;
    flex: 1;
}

.section-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* ===============================================
   GLASS CARD EFFECT
   =============================================== */

.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: var(--space-xl);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.glass-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* ===============================================
   PROFILE SECTION
   =============================================== */

.profile-section {
    margin-bottom: var(--space-2xl);
}

.profile-card {
    overflow: hidden;
}

.profile-header {
    display: flex;
    gap: var(--space-xl);
    align-items: flex-start;
    margin-bottom: var(--space-lg);
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg);
    box-shadow: var(--shadow-md);
}

.profile-info {
    flex: 1;
}

.profile-name {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.profile-bio {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-size: var(--text-lg);
}

.profile-stats {
    display: flex;
    gap: var(--space-2xl);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--primary);
}

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

.profile-meta {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.meta-item:empty {
    display: none;
}

/* ===============================================
   STATISTICS SECTION
   =============================================== */

.stats-section {
    margin-bottom: var(--space-2xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.stat-card {
    text-align: center;
    padding: var(--space-lg);
}

.stat-title {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.stat-large {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--primary);
}

/* ===============================================
   LANGUAGES SECTION
   =============================================== */

.languages-section {
    margin-bottom: var(--space-2xl);
}

.chart-container {
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.language-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--space-md);
}

.language-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--surface);
    border-radius: 8px;
    font-size: var(--text-sm);
}

.language-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.language-name {
    font-weight: 500;
    color: var(--text);
}

.language-percent {
    margin-left: auto;
    color: var(--text-secondary);
}

/* ===============================================
   FOOTER
   =============================================== */

.footer {
    margin-top: auto;
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.footer-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

/* ===============================================
   DEVELOPER SCORE SECTION
   =============================================== */

.developer-score-section {
    margin-bottom: var(--space-2xl);
}

.score-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-lg);
}

.score-main {
    display: flex;
    gap: var(--space-2xl);
    align-items: center;
}

.score-circle {
    position: relative;
    width: 200px;
    height: 200px;
    flex-shrink: 0;
}

.score-svg {
    transform: rotate(0deg);
}

#scoreProgress {
    transition: stroke-dashoffset 2s ease-out;
}

.score-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.score-number {
    display: block;
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--primary);
}

.score-level {
    display: block;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--space-xs);
}

.score-details {
    flex: 1;
}

.score-percentile {
    font-size: var(--text-xl);
    color: var(--text);
    margin-bottom: var(--space-lg);
}

.score-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.score-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.score-label {
    min-width: 100px;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.score-bar {
    flex: 1;
    height: 8px;
    background: var(--surface-2);
    border-radius: 4px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 4px;
    transition: width 1.5s ease-out;
}

.score-mini {
    min-width: 30px;
    text-align: right;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--primary);
}

.badges-container {
    display: flex;
    flex-direction: column;
}

.badges-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-lg);
}

.badges-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--surface);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.badge-icon {
    display: none;
}

.badge-content {
    flex: 1;
}

.badge-name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text);
}

.badge-description {
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

/* ===============================================
   CAREER INSIGHTS SECTION
   =============================================== */

.career-insights-section {
    margin-bottom: var(--space-2xl);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.insight-card {
    padding: var(--space-xl);
}

.insight-card.full-width {
    grid-column: 1 / -1;
}

.insight-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-lg);
    color: var(--text);
}

.strengths-list,
.recommendations-list,
.skill-gaps-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.strength-item,
.recommendation-item,
.gap-item {
    padding: var(--space-md);
    background: var(--surface);
    border-radius: 8px;
    border: 1px solid var(--border);
    border-left: 2px solid var(--border);
}

.strength-title,
.recommendation-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--space-xs);
}

.strength-description,
.recommendation-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.recommendation-action {
    font-size: var(--text-sm);
    color: var(--primary);
    margin-top: var(--space-xs);
    font-style: italic;
}

.learning-plan {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.plan-section {
    padding: var(--space-sm);
}

.plan-section-title {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary);
    margin-bottom: var(--space-sm);
}

.plan-item {
    padding: var(--space-sm);
    background: var(--surface);
    border-radius: 4px;
    margin-bottom: var(--space-xs);
}

.career-path {
    display: flex;
    gap: var(--space-xl);
    overflow-x: auto;
    padding-bottom: var(--space-md);
}

.path-item {
    min-width: 250px;
    padding: var(--space-lg);
    background: var(--surface);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.path-timeframe {
    font-size: var(--text-sm);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xs);
}

.path-goal {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--space-md);
}

.path-steps {
    list-style: none;
    padding-left: var(--space-md);
}

.path-steps li {
    position: relative;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.path-steps li:before {
    content: '→';
    position: absolute;
    left: -15px;
    color: var(--primary);
}

.market-alignment {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.alignment-score {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--primary);
}

.alignment-insights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.alignment-insight {
    padding: var(--space-xs) var(--space-sm);
    background: var(--surface);
    border-radius: 4px;
    font-size: var(--text-sm);
}

/* ===============================================
   CONTRIBUTION PATTERNS SECTION
   =============================================== */

.patterns-section {
    margin-bottom: var(--space-2xl);
}

.patterns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.pattern-card {
    padding: var(--space-xl);
}

.pattern-card.full-width {
    grid-column: 1 / -1;
}

.pattern-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-lg);
    color: var(--text);
}

.activity-timeline,
.coding-schedule,
.language-evolution,
.collaboration-style {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.timeline-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--surface);
    border-radius: 4px;
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.schedule-day {
    text-align: center;
    padding: var(--space-xs);
    font-size: var(--text-xs);
    background: var(--surface);
    border-radius: 4px;
}

.schedule-day.active {
    background: var(--primary);
    color: white;
}

.evolution-chart {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
}

.evolution-year {
    min-width: 80px;
    text-align: center;
}

.evolution-year-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.evolution-languages {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.evolution-lang {
    padding: 2px 4px;
    background: var(--primary-light);
    color: white;
    font-size: var(--text-xs);
    border-radius: 2px;
}

.pattern-insights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.pattern-insight-item {
    padding: var(--space-md);
    background: var(--surface);
    border-radius: 8px;
    display: flex;
    align-items: start;
    gap: var(--space-sm);
}

.pattern-insight-icon {
    font-size: var(--text-xl);
}

.pattern-insight-text {
    flex: 1;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* ===============================================
   RESPONSIVE DESIGN
   =============================================== */

@media (max-width: 768px) {
    .search-container {
        flex-direction: column;
    }

    .profile-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .profile-stats {
        justify-content: center;
    }

    .section-header {
        flex-direction: column;
        align-items: stretch;
    }

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

    /* New sections responsive */
    .score-container {
        grid-template-columns: 1fr;
    }

    .score-main {
        flex-direction: column;
        text-align: center;
    }

    .insights-grid,
    .patterns-grid {
        grid-template-columns: 1fr;
    }

    .career-path {
        flex-direction: column;
    }

    .path-item {
        min-width: 100%;
    }
}