/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
:root {
    /* Color Palette - Premium Dark Theme (Default) */
    --bg-app: #0b0f19;
    --bg-card: #151c2c;
    --bg-header: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent: #38bdf8; /* Sky blue */
    --accent-hover: #0ea5e9;
    --accent-glow: rgba(56, 189, 248, 0.15);
    
    --border-color: #334155;
    --card-shadow: 0 10px 30px -15px rgba(2, 6, 23, 0.7);
    --timeline-line: #334155;
    
    /* Font Families */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Sizing */
    --max-width: 1000px;
    --border-radius-lg: 16px;
    --border-radius-md: 10px;
    --border-radius-sm: 6px;
}

/* Light Theme Variables */
body.light-theme {
    --bg-app: #f1f5f9;
    --bg-card: #ffffff;
    --bg-header: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --accent: #0284c7; /* Sky blue dark version */
    --accent-hover: #0369a1;
    --accent-glow: rgba(2, 132, 199, 0.1);
    
    --border-color: #e2e8f0;
    --card-shadow: 0 10px 25px -15px rgba(148, 163, 184, 0.3);
    --timeline-line: #cbd5e1;
}

/* Reset & Global Elements */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

body {
    background-color: var(--bg-app);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    font-size: 15px;
    padding: 24px 16px;
    min-height: 100vh;
}

/* Layout Container */
.app-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ==========================================================================
   Header / Action Bar (Web Only)
   ========================================================================== */
.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background-color: var(--bg-card);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.5px;
}

.logo-accent {
    color: var(--accent);
}

.actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 50%;
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-icon:hover {
    color: var(--accent);
    background-color: var(--accent-glow);
    border-color: var(--accent);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

.btn-primary {
    background-color: var(--accent);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.2);
}

.btn-icon-svg {
    width: 18px;
    height: 18px;
}

/* Toggle Sun/Moon icons depending on active class */
body.dark-theme .sun-icon {
    display: block;
}
body.dark-theme .moon-icon {
    display: none;
}
body.light-theme .sun-icon {
    display: none;
}
body.light-theme .moon-icon {
    display: block;
}

/* ==========================================================================
   Main Resume Card Layout
   ========================================================================== */
.resume-card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    padding: 48px;
    display: flex;
    flex-direction: column;
    gap: 36px;
}

/* ==========================================================================
   Sections & Typography
   ========================================================================== */
.section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.section-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.2px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
    color: var(--text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: var(--accent);
}

/* Hero Section */
.hero-section {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 30px;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 38px;
    line-height: 1.1;
    letter-spacing: -1px;
}

.title {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 18px;
    color: var(--accent);
    letter-spacing: 0.2px;
}

.hero-right {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    text-align: right;
}

.contact-icon {
    width: 16px;
    height: 16px;
    color: var(--accent);
}

.link-item {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.link-item:hover {
    color: var(--accent);
}

/* Profile Text */
.profile-text {
    color: var(--text-secondary);
    font-size: 15.5px;
    line-height: 1.7;
    text-align: justify;
}

/* ==========================================================================
   Skills Grid
   ========================================================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.skills-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 16px 20px;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

body.light-theme .skills-card {
    background-color: rgba(0, 0, 0, 0.01);
}

.skills-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.skills-card-title {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 15px;
    color: var(--accent);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

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

.skill-tag {
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    font-size: 12.5px;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
}

.skill-tag:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    background-color: var(--accent-glow);
}

/* Highlight / Filtering Interactions */
.skill-tag.highlighted {
    color: #ffffff;
    background-color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 2px 8px var(--accent-glow);
}

body.light-theme .skill-tag.highlighted {
    color: #ffffff;
}

/* ==========================================================================
   Experience / Timeline
   ========================================================================== */
.section-header-interactive {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.section-header-interactive .section-title {
    border-bottom: none;
    padding-bottom: 0;
}

.section-header-interactive .section-title::after {
    display: none;
}

.filter-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.filter-label {
    color: var(--text-muted);
    font-weight: 500;
}

.filter-btn {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
    font-size: 12px;
    cursor: pointer;
    font-family: var(--font-body);
    transition: all 0.2s ease;
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.filter-btn.active {
    background-color: var(--accent-glow);
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 600;
}

/* Timeline Layout */
.timeline {
    position: relative;
    padding-left: 24px;
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 10px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background-color: var(--timeline-line);
}

.timeline-item {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -24px;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--bg-card);
    border: 2px solid var(--accent);
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.timeline-item:hover::before {
    transform: scale(1.3);
    background-color: var(--accent);
}

/* Timeline Header */
.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.timeline-header-main {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.job-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 16.5px;
    color: var(--text-primary);
    line-height: 1.3;
}

.company {
    font-weight: 500;
    font-size: 14px;
    color: var(--accent);
}

.timeline-header-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-size: 13px;
    color: var(--text-muted);
    min-width: 120px;
}

.location {
    font-weight: 500;
}

.date {
    font-weight: 400;
}

/* Job Bullet Points */
.job-bullets {
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--text-secondary);
}

.job-bullets li {
    font-size: 14.5px;
    line-height: 1.6;
    transition: all 0.2s ease;
}

.job-bullets li strong {
    color: var(--text-primary);
}

/* Highlighting connections */
.timeline-item.dimmed, 
.job-bullets li.dimmed {
    opacity: 0.3;
}

.job-bullets li.highlighted {
    color: var(--text-primary);
    border-left: 3px solid var(--accent);
    padding-left: 8px;
    margin-left: -11px;
    font-weight: 500;
}

/* Filter animations */
.timeline-item.hidden {
    display: none;
}

/* ==========================================================================
   Education & Footer
   ========================================================================== */
.education-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.education-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.degree {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 16px;
    color: var(--text-primary);
}

.school {
    color: var(--text-secondary);
    font-size: 14px;
}

.app-footer {
    text-align: center;
    padding: 16px;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    margin-top: 12px;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    body {
        padding: 12px 8px;
    }
    
    .resume-card {
        padding: 24px 16px;
        gap: 28px;
    }
    
    .hero-section {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .hero-right {
        align-items: flex-start;
        text-align: left;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header-interactive {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .timeline-header {
        flex-direction: column;
        gap: 4px;
    }
    
    .timeline-header-meta {
        align-items: flex-start;
        min-width: unset;
        font-size: 12px;
        flex-direction: row;
        gap: 8px;
    }
}

/* ==========================================================================
   Print Optimization (@media print)
   ========================================================================== */
@media print {
    /* Reset & Force styling */
    html, body {
        background: #ffffff !important;
        color: #000000 !important;
        font-size: 10pt !important;
        line-height: 1.4 !important;
        padding: 0 !important;
        margin: 0 !important;
        font-family: Arial, Helvetica, sans-serif !important; /* Standard system fonts for maximum parser compatibility */
    }

    .app-container {
        max-width: 100% !important;
        margin: 0.5in !important; /* Standard half-inch margins for print */
        gap: 0 !important;
    }

    /* Hide web-only items */
    .no-print, 
    #theme-toggle, 
    #print-btn, 
    .action-bar, 
    .filter-controls,
    .app-footer {
        display: none !important;
    }

    /* Flatten Card Layout */
    .resume-card {
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        display: block !important;
    }

    /* Print-specific Spacing */
    .section {
        gap: 6pt !important;
        margin-bottom: 12pt !important;
        display: block !important;
    }

    .section-title {
        font-size: 12pt !important;
        border-bottom: 1pt solid #000000 !important;
        padding-bottom: 2pt !important;
        color: #000000 !important;
        margin-bottom: 6pt !important;
        font-weight: bold !important;
        text-transform: uppercase !important;
    }

    .section-title::after {
        display: none !important;
    }

    /* Hero Print Styling - Single Column Linear Flow for ATS */
    .hero-section {
        display: block !important;
        border-bottom: 1pt solid #000000 !important;
        padding-bottom: 6pt !important;
        margin-bottom: 12pt !important;
        text-align: left !important;
    }

    .hero-left {
        display: block !important;
        margin-bottom: 4pt !important;
    }

    .name {
        font-size: 20pt !important;
        color: #000000 !important;
        font-weight: bold !important;
    }

    .title {
        font-size: 11pt !important;
        color: #333333 !important;
        font-weight: bold !important;
        margin-top: 2pt !important;
    }

    .hero-right {
        display: block !important;
        text-align: left !important;
        font-size: 9pt !important;
        color: #000000 !important;
        margin-top: 4pt !important;
    }

    .contact-icon {
        display: none !important; /* Hide SVGs in print */
    }

    .contact-item {
        display: inline !important;
        text-align: left !important;
    }

    .contact-item::after {
        content: "  |  " !important;
        color: #666666 !important;
    }

    .contact-item:last-child::after {
        content: "" !important;
    }

    .link-item {
        color: #000000 !important;
        text-decoration: none !important;
    }

    /* Profile Text */
    .profile-text {
        font-size: 9.5pt !important;
        color: #000000 !important;
        line-height: 1.4 !important;
        text-align: justify !important;
    }

    /* Skills Print Layout - Linear single-column flow for ATS scanning */
    .skills-grid {
        display: block !important; /* Disable grid */
    }

    .skills-card {
        background: transparent !important;
        border: none !important;
        padding: 0 !important;
        margin-bottom: 6pt !important;
        display: block !important;
    }

    .skills-card-title {
        font-size: 9.5pt !important;
        color: #000000 !important;
        margin-bottom: 2pt !important;
        font-weight: bold !important;
        text-transform: uppercase !important;
        display: inline-block !important;
    }
    
    .skills-card-title::after {
        content: ": " !important;
    }

    .skills-list {
        display: inline !important; /* Flow tags in-line */
    }

    .skill-tag {
        background: transparent !important;
        border: none !important;
        padding: 0 !important;
        font-size: 9.5pt !important;
        color: #000000 !important;
        border-radius: 0 !important;
        display: inline !important;
    }

    .skill-tag::after {
        content: ", ";
    }

    .skill-tag:last-child::after {
        content: "";
    }

    /* Experience Timeline Print Styling - Linear vertical flow */
    .timeline {
        padding-left: 0 !important;
        margin-top: 0 !important;
        gap: 12pt !important;
        display: block !important;
    }

    .timeline::before {
        display: none !important; /* Hide visual timeline connector */
    }

    .timeline-item {
        margin-bottom: 12pt !important;
        display: block !important;
        page-break-inside: avoid !important;
    }

    .timeline-item::before {
        display: none !important; /* Hide bullet points on timeline nodes */
    }

    .timeline-header {
        display: block !important; /* Linear stack for parsing */
        margin-bottom: 4pt !important;
    }

    .timeline-header-main {
        display: block !important;
    }

    .job-title {
        font-size: 11pt !important;
        color: #000000 !important;
        font-weight: bold !important;
        display: inline !important;
    }

    .timeline-header-main::after {
        content: "" !important;
    }

    .company {
        font-size: 10pt !important;
        color: #333333 !important;
        font-weight: bold !important;
        display: block !important;
        margin-top: 1pt !important;
    }

    .timeline-header-meta {
        display: block !important;
        text-align: left !important;
        font-size: 9pt !important;
        color: #555555 !important;
        margin-top: 2pt !important;
    }

    .location {
        font-weight: normal !important;
        display: inline !important;
    }

    .location::after {
        content: "  •  " !important;
    }

    .date {
        font-weight: normal !important;
        display: inline !important;
    }

    .job-bullets {
        padding-left: 14pt !important;
        gap: 3pt !important;
        display: block !important;
        list-style-type: disc !important;
    }

    .job-bullets li {
        font-size: 9.5pt !important;
        color: #000000 !important;
        line-height: 1.4 !important;
        display: list-item !important;
    }

    .job-bullets li.highlighted {
        border-left: none !important;
        padding-left: 0 !important;
        margin-left: 0 !important;
        font-weight: normal !important;
    }

    /* Education Print Styling */
    .education-item {
        display: block !important;
        page-break-inside: avoid !important;
    }

    .education-header {
        display: block !important;
    }

    .degree {
        font-size: 11pt !important;
        color: #000000 !important;
        font-weight: bold !important;
    }

    .school {
        color: #333333 !important;
        font-size: 10pt !important;
        display: block !important;
        margin-top: 1pt !important;
    }

    /* Prevent orphan headings */
    h3.section-title {
        page-break-after: avoid !important;
    }
}