/* ═══════════════════════════════════════════════════════════════
   UPWORK PROFILE MOCK - CSS STYLES
   Design System: Upwork Brand Guidelines
   ═══════════════════════════════════════════════════════════════ */

/* ─── Design Tokens ─────────────────────────────────────────── */
:root {
    /* Colors */
    --color-primary: #14a800;
    --color-primary-hover: #108a00;
    --color-primary-light: #e8f7e4;
    --color-text-dark: #1d1d1d;
    --color-text-muted: #5e6d55;
    --color-text-light: #9aaa97;
    --color-background: #ffffff;
    --color-background-alt: #f7f7f7;
    --color-border: #e0e0e0;
    --color-skill-bg: #f2f2f2;
    --color-star: #ff9800;
    --color-verified: #0d6efd;
    --color-online: #14a800;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 28px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-sticky: 0 -2px 10px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ─── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── Navigation Header ─────────────────────────────────────── */
.nav-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-menu .nav-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-dark);
    text-decoration: none;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-menu .nav-item:hover {
    background-color: var(--color-background-alt);
}

.nav-menu .nav-item svg {
    opacity: 0.6;
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-dark);
    text-decoration: none;
    padding: 8px 12px;
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
}

/* ─── Secondary Navigation ─────────────────────────────────── */
.nav-secondary {
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
}

.nav-subnav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    list-style: none;
    height: 56px;
}

.nav-subnav li {
    display: flex;
    align-items: center;
}

.nav-subnav li a {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: #5e6d55;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-subnav li a:hover {
    background-color: var(--color-background-alt);
    color: var(--color-text-dark);
}

.nav-subnav li.dropdown {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: #5e6d55;
    padding: 8px 12px;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-subnav li.dropdown:hover {
    background-color: var(--color-background-alt);
    color: var(--color-text-dark);
}

.nav-subnav li.dropdown svg {
    opacity: 0.6;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.upwork-logo-text {
    font-family: 'Neue Montreal', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 22px;
    font-weight: 500;
    color: #1d1d1d;
    letter-spacing: -0.3px;
    text-decoration: none;
    display: inline-block;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary-light);
}

.btn-icon {
    background: transparent;
    border: none;
    padding: var(--spacing-sm);
    color: var(--color-text-muted);
}

.btn-icon:hover {
    color: var(--color-text-dark);
}

/* ─── Profile Main ──────────────────────────────────────────── */
.profile-main {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    padding-bottom: 120px;
}

/* ─── Profile Header ────────────────────────────────────────── */
.profile-header {
    margin-bottom: var(--spacing-xl);
}

.profile-header-content {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.profile-avatar-wrapper {
    flex-shrink: 0;
}

.profile-avatar {
    position: relative;
    width: 100px;
    height: 100px;
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.online-indicator {
    position: absolute;
    top: 0;
    left: 0;
    width: 14px;
    height: 14px;
    background: #FFBA00;
    border: 2px solid white;
    border-radius: 50%;
}

.profile-info {
    flex: 1;
}

.profile-name-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.profile-name {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-dark);
}

.verified-badge {
    display: flex;
    align-items: center;
}

.verified-badge svg {
    width: 20px;
    height: 20px;
}

.profile-location {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ─── Profile Title & Rate ──────────────────────────────────── */
.profile-title-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.profile-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.profile-rate {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-dark);
}

/* ─── Bio Section ───────────────────────────────────────────── */
.profile-bio {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.bio-hook {
    font-size: var(--font-size-lg);
    font-style: italic;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-lg);
}

.bio-intro {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.bio-subhead {
    color: var(--color-text-dark);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.bio-points {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.bio-point {
    display: flex;
    gap: var(--spacing-sm);
}

.checkmark {
    flex-shrink: 0;
    font-size: var(--font-size-base);
}

.point-content {
    color: var(--color-text-muted);
    line-height: 1.6;
}

.point-content strong {
    color: var(--color-text-dark);
}

.bio-specialties-header {
    color: var(--color-text-dark);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.bio-specialties {
    list-style: none;
    color: var(--color-text-muted);
}

.bio-specialties li {
    padding: var(--spacing-xs) 0;
}

/* ─── Section Title ─────────────────────────────────────────── */
.section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-lg);
}

/* ─── Portfolio Section ─────────────────────────────────────── */
.profile-portfolio {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.portfolio-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-background);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    cursor: pointer;
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.portfolio-image {
    position: relative;
    height: 160px;
    overflow: hidden;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-md);
}

.portfolio-tag {
    background: rgba(255,255,255,0.2);
    color: white;
    font-size: var(--font-size-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    backdrop-filter: blur(4px);
}

.portfolio-info {
    padding: var(--spacing-md);
}

.portfolio-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
}

.portfolio-desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.see-more-card {
    background: var(--color-background-alt);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
}

.see-more-card p {
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
}

/* ─── Skills Section ────────────────────────────────────────── */
.profile-skills {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-tag {
    background: var(--color-skill-bg);
    color: var(--color-text-dark);
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* ─── Availability Section ──────────────────────────────────── */
.profile-availability {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.availability-text {
    color: var(--color-text-muted);
}

/* ─── Stats Section ─────────────────────────────────────────── */
.profile-stats {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ─── Work History Section ──────────────────────────────────── */
.profile-work-history {
    margin-bottom: var(--spacing-xl);
}

.work-history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.work-entry {
    padding: var(--spacing-lg);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.work-entry:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.work-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-sm);
}

.work-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.work-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.stars {
    color: var(--color-star);
    font-size: var(--font-size-sm);
    letter-spacing: -2px;
}

.rating-value {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-dark);
}

.work-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.work-feedback {
    font-size: var(--font-size-sm);
    font-style: italic;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-border);
    line-height: 1.6;
}

.work-details {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    font-size: var(--font-size-sm);
}

.work-earnings {
    font-weight: 600;
    color: var(--color-text-dark);
}

.work-separator {
    color: var(--color-text-light);
}

.work-type,
.work-duration {
    color: var(--color-text-muted);
}

.see-more-link {
    display: inline-block;
    margin-top: var(--spacing-lg);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.see-more-link:hover {
    text-decoration: underline;
}

/* ─── Sticky CTA Bar ────────────────────────────────────────── */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-sticky);
    z-index: 100;
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.sticky-cta.visible {
    transform: translateY(0);
}

.sticky-cta-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.sticky-cta-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-dark);
    font-weight: 500;
}

.sticky-cta-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ─── Responsive Styles ─────────────────────────────────────── */

/* Mobile - Small (up to 480px) */
@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
        --font-size-lg: 16px;
        --font-size-xl: 18px;
        --font-size-2xl: 20px;
        --font-size-3xl: 24px;
    }
    
    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .nav-logo-img {
        height: 24px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-actions {
        gap: var(--spacing-sm);
    }
    
    .nav-actions .nav-link {
        display: none;
    }
    
    .nav-actions .btn-icon {
        display: none;
    }
    
    .nav-actions .btn-primary {
        padding: 6px 12px;
        font-size: var(--font-size-xs);
    }
    
    .nav-secondary {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-subnav {
        padding: 0 var(--spacing-md);
        gap: 0;
        min-width: max-content;
        height: 48px;
    }
    
    .nav-subnav li a,
    .nav-subnav li.dropdown {
        padding: 8px 10px;
        font-size: var(--font-size-xs);
        white-space: nowrap;
    }
    
    .profile-main {
        padding: var(--spacing-sm);
        padding-bottom: 100px;
    }
    
    .profile-avatar {
        width: 80px;
        height: 80px;
    }
    
    .profile-name {
        font-size: var(--font-size-lg);
    }
    
    .profile-title {
        font-size: var(--font-size-lg);
    }
    
    .profile-rate {
        font-size: var(--font-size-base);
    }
    
    .bio-hook {
        font-size: var(--font-size-base);
    }
    
    .section-title {
        font-size: var(--font-size-base);
    }
    
    .skill-tag {
        font-size: var(--font-size-xs);
        padding: 6px 10px;
    }
    
    .stat-value {
        font-size: var(--font-size-lg);
    }
    
    .work-entry {
        padding: var(--spacing-md);
    }
    
    .work-title {
        font-size: var(--font-size-sm);
    }
    
    .work-feedback {
        font-size: var(--font-size-xs);
        padding-left: var(--spacing-sm);
    }
    
    .sticky-cta-text {
        font-size: var(--font-size-xs);
    }
    
    .sticky-cta-actions .btn {
        padding: 8px 16px;
        font-size: var(--font-size-xs);
    }
}

/* Mobile - Medium (481px to 767px) */
@media (min-width: 481px) and (max-width: 767px) {
    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .nav-logo-img {
        height: 28px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-actions .nav-link {
        padding: 6px 10px;
        font-size: var(--font-size-xs);
    }
    
    .nav-actions .btn-primary {
        padding: 8px 14px;
        font-size: var(--font-size-xs);
    }
    
    .nav-secondary {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-subnav {
        padding: 0 var(--spacing-md);
        gap: var(--spacing-xs);
        min-width: max-content;
        height: 50px;
    }
    
    .nav-subnav li a,
    .nav-subnav li.dropdown {
        padding: 8px 10px;
        font-size: var(--font-size-xs);
        white-space: nowrap;
    }
}

/* Mobile - All (up to 767px) */
@media (max-width: 767px) {
    .profile-main {
        padding: var(--spacing-md);
        padding-bottom: 100px;
    }
    
    .profile-header-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .profile-name-row {
        justify-content: center;
    }
    
    .profile-location {
        justify-content: center;
    }
    
    .profile-title {
        font-size: var(--font-size-xl);
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .work-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .work-details {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .work-separator {
        display: none;
    }
    
    .sticky-cta-content {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-md);
    }
    
    .sticky-cta-actions {
        width: 100%;
        justify-content: center;
    }
    
    .see-more-card {
        padding: var(--spacing-lg);
    }
    
    .bio-points {
        gap: var(--spacing-sm);
    }
    
    .bio-point {
        align-items: flex-start;
    }
    
    .checkmark {
        font-size: var(--font-size-sm);
    }
}

/* Tablet */
@media (min-width: 768px) and (max-width: 1023px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .profile-main {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .profile-avatar {
        width: 120px;
        height: 120px;
    }
    
    .profile-title {
        font-size: var(--font-size-3xl);
    }
}

/* ─── Animations ────────────────────────────────────────────── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.profile-header,
.profile-title-section,
.profile-bio,
.profile-portfolio,
.profile-skills,
.profile-stats,
.profile-work-history {
    animation: fadeInUp var(--transition-slow) ease-out;
    animation-fill-mode: both;
}

.profile-title-section { animation-delay: 0.1s; }
.profile-bio { animation-delay: 0.2s; }
.profile-portfolio { animation-delay: 0.3s; }
.profile-skills { animation-delay: 0.4s; }
.profile-stats { animation-delay: 0.5s; }
.profile-work-history { animation-delay: 0.6s; }

/* ─── Print Styles ──────────────────────────────────────────── */
@media print {
    .nav-header,
    .sticky-cta {
        display: none;
    }
    
    .profile-main {
        padding-bottom: 0;
    }
}