/*
    Ashar S. Ahmed - Styles
    Sections: Tokens, Base, Layout, Components, Utilities, Motion, Media
*/

:root {
            --bg-primary: #f8fafc;
            --bg-secondary: #ffffff;
            --bg-tertiary: #f1f5f9;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-muted: #94a3b8;
            --accent-primary: #3b82f6;
            --accent-secondary: #8b5cf6;
            --accent-tertiary: #06b6d4;
            --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
            --accent-gradient-2: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
            --accent-light: #dbeafe;
            --border-color: #e2e8f0;
            --card-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
            --card-shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
            --card-bg: #ffffff;
            --card-border: #e2e8f0;
            --skill-bg: #f1f5f9;
            --highlight-bg: #fef3c7;
            --highlight-text: #92400e;
            --success: #10b981;
            --header-bg: #0f172a;
            --glass-bg: rgba(255,255,255,0.85);
            --glass-border: rgba(255,255,255,0.3);
            --transition-speed: 0.3s;
            --logo-well-bg: #f8fafc;
            --logo-well-border: #e2e8f0;
            --sticky-top: 84px;
            --sticky-height: 48px;
        }

        [data-theme="dark"] {
            --bg-primary: #0f172a;
            --bg-secondary: #111827;
            --bg-tertiary: #1f2937;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --accent-primary: #60a5fa;
            --accent-secondary: #a78bfa;
            --accent-tertiary: #22d3ee;
            --accent-gradient: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
            --accent-gradient-2: linear-gradient(135deg, #22d3ee 0%, #60a5fa 100%);
            --accent-light: #1e3a5f;
            --border-color: #2b3545;
            --card-shadow: 0 10px 18px -14px rgba(0,0,0,0.7), 0 1px 0 rgba(255,255,255,0.04) inset;
            --card-shadow-hover: 0 20px 30px -18px rgba(0,0,0,0.75), 0 1px 0 rgba(255,255,255,0.06) inset;
            --card-bg: #131a26;
            --card-border: #2b3646;
            --skill-bg: #1f2937;
            --highlight-bg: #422006;
            --highlight-text: #fbbf24;
            --header-bg: #020617;
            --glass-bg: rgba(15,23,42,0.85);
            --glass-border: rgba(255,255,255,0.1);
            --logo-well-bg: #1b2433;
            --logo-well-border: #2f3a4d;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-primary);
            transition: background var(--transition-speed), color var(--transition-speed);
            overflow-x: hidden;
        }

        
        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 3px;
        }

        /* Scrollbar */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-primary); }
        ::-webkit-scrollbar-thumb { background: var(--accent-primary); border-radius: 4px; }


        /* Command Palette */
        .command-palette {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            backdrop-filter: blur(4px);
            z-index: 10000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding-top: 20vh;
            opacity: 0;
            visibility: hidden;
            transition: all 0.2s;
        }

        .command-palette.active {
            opacity: 1;
            visibility: visible;
        }

        .command-palette-box {
            background: var(--bg-secondary);
            border-radius: 16px;
            width: 90%;
            max-width: 500px;
            box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transform: scale(0.95) translateY(-20px);
            transition: transform 0.2s;
        }

        .command-palette.active .command-palette-box {
            transform: scale(1) translateY(0);
        }

        .command-input {
            width: 100%;
            padding: 18px 20px;
            border: none;
            background: transparent;
            font-size: 1.1em;
            color: var(--text-primary);
            outline: none;
            border-bottom: 1px solid var(--border-color);
        }

        .command-input::placeholder {
            color: var(--text-muted);
        }

        .command-list {
            max-height: 300px;
            overflow-y: auto;
        }

        .command-empty {
            padding: 18px 20px;
            color: var(--text-muted);
            font-size: 0.9em;
        }

        .command-item {
            padding: 14px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: background 0.15s;
        }

        .command-item:hover, .command-item.selected {
            background: var(--accent-light);
        }

        .command-item-icon {
            width: 32px;
            height: 32px;
            background: var(--bg-tertiary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1em;
        }

        .command-item-text {
            flex: 1;
        }

        .command-item-title {
            font-weight: 500;
            color: var(--text-primary);
        }

        .command-item-desc {
            font-size: 0.85em;
            color: var(--text-muted);
        }

        .command-shortcut {
            font-family: 'Fira Code', monospace;
            font-size: 0.75em;
            background: var(--bg-tertiary);
            padding: 4px 8px;
            border-radius: 4px;
            color: var(--text-muted);
        }

        /* Theme Toggle */
        .theme-toggle {
            position: fixed;
            bottom: 20px;
            left: 20px;
            z-index: 1001;
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 50%;
            width: 48px;
            height: 48px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2em;
            color: var(--text-primary);
            transition: all var(--transition-speed);
            box-shadow: var(--card-shadow);
        }

        .theme-toggle:hover {
            transform: scale(1.1) rotate(15deg);
        }

        .container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

        .typing-container {
            height: 32px;
            margin-bottom: 30px;
            animation: fadeInUp 0.8s ease-out 0.4s both;
        }

        .typing-text {
            font-family: 'Fira Code', monospace;
            font-size: 1em;
            color: var(--accent-tertiary);
        }

        .typing-text::after {
            content: '|';
            animation: blink 1s step-end infinite;
        }

        @keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

        /* Certification Badges Row */
        .hero-certs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 30px;
            animation: fadeInUp 0.8s ease-out 0.5s both;
        }

        .cert-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.12);
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 0.8em;
            color: #e2e8f0;
            transition: all var(--transition-speed);
        }

        .cert-badge:hover {
            background: rgba(255,255,255,0.15);
            transform: translateY(-2px);
        }

        .cert-badge svg {
            width: 16px;
            height: 16px;
        }

        .cert-badge.aws svg { color: #ff9900; }
        .cert-badge.comptia svg { color: #c8202f; }
        .cert-badge.isc2 svg { color: #00a651; }
        .cert-badge.csa svg { color: #00b4d8; }

        /* Contact Links */
        .contact-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 30px;
            animation: fadeInUp 0.8s ease-out 0.6s both;
        }

        .contact-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #cbd5e1;
            text-decoration: none;
            padding: 10px 16px;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 10px;
            font-size: 0.9em;
            transition: all var(--transition-speed);
        }

        button.contact-link {
            cursor: pointer;
            font-family: inherit;
        }

        .contact-link--copy {
            border-style: dashed;
            border-color: rgba(59, 130, 246, 0.4);
        }

        .contact-link:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--accent-primary);
            color: white;
            transform: translateY(-2px);
        }

        .contact-link svg { width: 18px; height: 18px; }

        .contact-link .btn-text { display: inline-block; }

        .copy-toast {
            min-height: 20px;
            font-size: 0.85em;
            color: #93c5fd;
            text-align: center;
            opacity: 0;
            transform: translateY(-6px);
            transition: opacity 0.25s ease, transform 0.25s ease;
        }

        .copy-toast.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Hero Buttons */
        .hero-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 60px;
            animation: fadeInUp 0.8s ease-out 0.7s both;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95em;
            text-decoration: none;
            transition: all var(--transition-speed);
            cursor: pointer;
            border: none;
        }

        .btn-text { display: inline-block; }

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

        .btn-primary {
            background: var(--accent-gradient);
            color: white;
            box-shadow: 0 4px 15px rgba(59,130,246,0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(59,130,246,0.5);
        }

        .btn-secondary {
            background: rgba(255,255,255,0.1);
            color: white;
            border: 1px solid rgba(255,255,255,0.2);
        }

        .btn-secondary:hover {
            background: rgba(255,255,255,0.15);
            transform: translateY(-2px);
        }

        .scroll-indicator {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            animation: bounce 2s ease-in-out infinite;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
            color: inherit;
        }

        .scroll-indicator svg { width: 28px; height: 28px; color: #64748b; }

        @keyframes bounce {
            0%, 100% { transform: translateX(-50%) translateY(0); }
            50% { transform: translateX(-50%) translateY(8px); }
        }

        @keyframes fadeInDown {
            from { opacity: 0; transform: translateY(-20px); }
            to { opacity: 1; transform: translateY(0); }
        }

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

        /* Main Content */
        main { padding: 80px 0; }
        section { margin-bottom: 100px; }

        .section-header { text-align: center; margin-bottom: 50px; }

        .section-label {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8em;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2em;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.05em;
            max-width: 550px;
            margin: 0 auto;
        }

        /* Timeline */
        .timeline { position: relative; padding-left: 28px; }

        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-bottom: 35px;
            opacity: 0;
            transform: translateX(-20px);
            transition: all 0.5s ease-out;
        }

        .timeline-item.animate-in { opacity: 1; transform: translateX(0); }
        .timeline-item:last-child { padding-bottom: 0; }

        .timeline-dot {
            position: absolute;
            left: -35px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--accent-primary);
            border: 3px solid var(--bg-primary);
            border-radius: 50%;
            transition: all var(--transition-speed);
        }

        .timeline-item:hover .timeline-dot {
            transform: scale(1.3);
            box-shadow: 0 0 0 4px var(--accent-light);
        }

        .timeline-content {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 22px 26px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--card-border);
            transition: all var(--transition-speed);
        }

        .timeline-content:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-3px);
        }

        .timeline-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 6px;
        }

        .timeline-title {
            font-size: 1.15em;
            font-weight: 600;
            color: var(--text-primary);
        }

        .timeline-date {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--bg-secondary);
            color: white;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.75em;
            font-weight: 500;
        }


        .timeline-company {
            display: flex;
            align-items: center;
            flex-wrap: nowrap;
            gap: 12px;
            margin-bottom: 10px;
        }

        .company-name {
            color: var(--accent-primary);
            font-weight: 500;
            font-size: 0.95em;
            flex: 1;
            min-width: 0;
        }

        .org-badges {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .org-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 0;
            height: auto;
            padding: 6px 10px;
            border-radius: 10px;
            border: 1px solid var(--logo-well-border);
            background: var(--logo-well-bg);
            color: inherit;
        }

        .org-badge img {
            height: 40px;
            width: auto;
            display: block;
        }

        [data-theme="dark"] .logo-wgu {
            filter: invert(1) brightness(1.05) contrast(0.95);
        }

        .org-badge-med img {
            height: 34px;
        }
        .timeline-details { list-style: none; }

        .timeline-details li {
            padding: 5px 0 5px 20px;
            position: relative;
            color: var(--text-secondary);
            font-size: 0.9em;
            transition: all var(--transition-speed);
        }

        .timeline-details li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 5px;
            height: 5px;
            background: var(--accent-secondary);
            border-radius: 50%;
        }

        .timeline-details li:hover {
            color: var(--text-primary);
            padding-left: 24px;
        }

        .highlight {
            background: var(--highlight-bg);
            color: var(--highlight-text);
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 0.9em;
        }

        /* Education Grid */
        .education-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .education-card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--card-border);
            transition: all var(--transition-speed);
            opacity: 0;
            transform: translateY(20px);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .education-card.animate-in { opacity: 1; transform: translateY(0); }

        .education-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--card-border);
        }

        .education-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow-hover);
        }

        .education-icon {
            width: 58px;
            height: 58px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0;
            background: transparent;
            flex-shrink: 0;
        }

        .education-icon img {
            width: 54px;
            height: 54px;
            object-fit: contain;
            display: block;
        }

        .education-details {
            display: grid;
            gap: 6px;
            min-width: 0;
        }

        .education-degree {
            font-size: 1.05em;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 5px;
        }

        .education-school {
            color: var(--accent-primary);
            margin-bottom: 6px;
            font-weight: 500;
            font-size: 0.9em;
        }

        .education-date {
            color: var(--text-muted);
            font-size: 0.8em;
        }

        /* Certifications */
        .certs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 16px;
        }

        .cert-card {
            background: var(--card-bg);
            border-radius: 10px;
            padding: 18px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--card-border);
            transition: all var(--transition-speed);
            opacity: 0;
            transform: translateY(20px);
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .cert-card.animate-in { opacity: 1; transform: translateY(0); }

        .cert-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }

        .cert-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid var(--logo-well-border);
            background: var(--logo-well-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            padding: 4px;
        }

        .cert-icon img {
            width: 36px;
            height: 36px;
            object-fit: contain;
            display: block;
        }

        [data-theme="dark"] .cert-invert-dark {
            filter: invert(1) hue-rotate(180deg);
        }

        .cert-info { flex: 1; min-width: 0; }

        .cert-name {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9em;
            margin-bottom: 2px;
        }

        .cert-issuer {
            color: var(--text-secondary);
            font-size: 0.8em;
        }

        .cert-year {
            font-size: 0.75em;
            color: var(--text-muted);
            background: var(--bg-tertiary);
            padding: 3px 8px;
            border-radius: 4px;
            flex-shrink: 0;
        }

        /* Skills */
        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .skill-category {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 22px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--card-border);
            transition: all var(--transition-speed);
            opacity: 0;
            transform: translateY(20px);
        }

        .skill-category.animate-in { opacity: 1; transform: translateY(0); }

        .skill-category:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }

        .skill-category-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 15px;
        }

        .skill-category-icon {
            width: 38px;
            height: 38px;
            background: var(--bg-secondary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1em;
        }

        .skill-category-title {
            font-size: 1em;
            font-weight: 600;
            color: var(--text-primary);
        }

        .skill-tags { display: flex; flex-wrap: wrap; gap: 6px; }

        .skill-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--bg-tertiary);
            color: var(--text-primary);
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 0.8em;
            font-weight: 500;
            transition: all var(--transition-speed);
            border: 1px solid transparent;
        }

        .skill-tag:hover {
            transform: translateY(-2px);
            border-color: var(--accent-primary);
            background: var(--accent-light);
        }

        .skill-tag svg { width: 14px; height: 14px; opacity: 0.7; }


        /* Projects */
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .project-card {
            background: var(--card-bg);
            border-radius: 14px;
            padding: 22px;
            border: 1px solid var(--card-border);
            box-shadow: var(--card-shadow);
            transition: all var(--transition-speed);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .project-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }

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

        .project-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--accent-gradient-2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2em;
        }

        .project-title {
            font-size: 1.1em;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }

        .project-type {
            color: var(--text-muted);
            font-size: 0.85em;
        }

        .project-summary {
            color: var(--text-secondary);
            font-size: 0.95em;
            line-height: 1.6;
        }

        .project-highlights {
            list-style: none;
            display: grid;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 0.9em;
        }

        .project-highlights li {
            padding-left: 18px;
            position: relative;
        }

        .project-highlights li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 9px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-secondary);
        }

        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .project-tag {
            background: var(--bg-tertiary);
            color: var(--text-primary);
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 0.75em;
            font-weight: 600;
        }

        /* Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .testimonial-card {
            background: var(--card-bg);
            border-radius: 14px;
            padding: 22px;
            border: 1px solid var(--card-border);
            box-shadow: var(--card-shadow);
            transition: all var(--transition-speed);
            display: grid;
            gap: 16px;
        }

        .testimonial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }

        .testimonial-card blockquote {
            color: var(--text-secondary);
            font-size: 0.95em;
            line-height: 1.7;
        }

        .testimonial-name {
            display: block;
            font-weight: 600;
            color: var(--text-primary);
        }

        .testimonial-role {
            display: block;
            color: var(--text-muted);
            font-size: 0.85em;
        }

        /* Publications */
        .publication-card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 28px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--card-border);
            transition: all var(--transition-speed);
            opacity: 0;
            transform: translateY(20px);
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .publication-card.animate-in { opacity: 1; transform: translateY(0); }

        .publication-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }

        .publication-icon {
            width: 55px;
            height: 55px;
            background: var(--accent-gradient-2);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4em;
            flex-shrink: 0;
        }

        .publication-content { flex: 1; }

        .publication-title {
            font-size: 1.15em;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .publication-venue {
            color: var(--accent-primary);
            font-weight: 500;
            margin-bottom: 6px;
            font-size: 0.95em;
        }

        .publication-date {
            color: var(--text-muted);
            font-size: 0.85em;
            margin-bottom: 10px;
        }

        .publication-badge {
            display: inline-block;
            background: var(--success);
            color: white;
            padding: 4px 10px;
            border-radius: 5px;
            font-size: 0.75em;
            font-weight: 600;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 16px;
            margin-top: 50px;
        }

        .stat-card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 22px 16px;
            text-align: center;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--card-border);
            transition: all var(--transition-speed);
        }

        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }

        .stat-number {
            font-size: 2.2em;
            font-weight: 700;
            color: var(--text-primary);
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            color: var(--text-secondary);
            font-size: 0.85em;
            margin-top: 2px;
        }

        /* Contact Section */
        .contact-section {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 50px 30px;
            text-align: center;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--card-border);
            position: relative;
            overflow: hidden;
        }

        .contact-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--card-border);
        }

        .contact-title {
            font-size: 1.8em;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .contact-text {
            color: var(--text-secondary);
            margin-bottom: 25px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .contact-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .contact-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 22px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95em;
            text-decoration: none;
            transition: all var(--transition-speed);
        }

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

        .contact-btn-primary {
            background: var(--accent-gradient);
            color: white;
        }

        .contact-btn-primary:hover { transform: translateY(-2px); }

        .contact-btn-secondary {
            background: var(--bg-tertiary);
            color: var(--text-primary);
        }

        .contact-btn-secondary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
        }

        /* Footer */
        footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 50px 20px 25px;
        }

        .footer-content { max-width: 1000px; margin: 0 auto; text-align: center; }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-light);
            padding: 10px 20px;
            border-radius: 50px;
            margin-bottom: 20px;
        }

        .footer-badge svg { width: 18px; height: 18px; color: var(--accent-primary); }
        .footer-badge span { color: var(--accent-primary); font-weight: 600; font-size: 0.9em; }

        .footer-text { color: var(--text-secondary); margin-bottom: 15px; font-size: 0.95em; }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
        }

        .footer-link {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9em;
            transition: color var(--transition-speed);
        }

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

        .footer-copyright { color: var(--text-muted); font-size: 0.8em; }

        /* Back to Top & Progress */
        .back-to-top {
            position: fixed;
            bottom: 25px;
            right: 25px;
            width: 46px;
            height: 46px;
            background: var(--bg-secondary);
            color: var(--text-primary);
            border: none;
            border-radius: 50%;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition-speed);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2em;
            box-shadow: 0 4px 12px rgba(59,130,246,0.4);
            z-index: 999;
        }

        .back-to-top.visible { opacity: 1; visibility: visible; }
        .back-to-top:hover { transform: translateY(-3px) scale(1.05); }

        .scroll-progress {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            background: var(--bg-secondary);
            z-index: 1002;
        }

        /* Loading */
        .loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--header-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            transition: opacity 0.4s, visibility 0.4s;
        }

        .loading-overlay.hidden { opacity: 0; visibility: hidden; }

        .loader {
            width: 44px;
            height: 44px;
            border: 3px solid rgba(255,255,255,0.1);
            border-top-color: var(--accent-primary);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

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

        /* Responsive */


        @media (max-width: 768px) {
            .nav { display: none; }
            .theme-toggle { bottom: 15px; left: 15px; width: 42px; height: 42px; }
            .hero-content { padding: 30px 15px; }
            .hero-avatar { width: 100px; height: 100px; font-size: 2.5em; }
            .hero-certs { gap: 6px; }
            .cert-badge { padding: 5px 10px; font-size: 0.75em; }
            .timeline { padding-left: 22px; }
            .timeline-dot { left: -29px; width: 12px; height: 12px; }
            .timeline-content { padding: 18px 20px; }
            .timeline-header { flex-direction: column; }
            .contact-row { flex-direction: row; align-items: center; justify-content: center; }
            .contact-link { width: 56px; height: 56px; justify-content: center; padding: 0; }
            .contact-link svg { width: 22px; height: 22px; }
            .hero-buttons { flex-direction: column; align-items: center; gap: 10px; margin-bottom: 40px; }
            .btn { position: relative; width: 56px; height: 56px; padding: 0; justify-content: center; }
            .btn svg { width: 22px; height: 22px; }
            .btn-text {
                position: absolute;
                width: 1px;
                height: 1px;
                padding: 0;
                margin: -1px;
                overflow: hidden;
                clip: rect(0, 0, 0, 0);
                white-space: nowrap;
                border: 0;
            }
            .publication-card { flex-direction: column; align-items: center; text-align: center; }
            section { margin-bottom: 70px; }
            .back-to-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
            .contact-section { padding: 40px 20px; }
            .command-palette-box { margin: 0 15px; }
        }
        /* Tooltips */
        .tooltip { position: relative; cursor: help; }
        .tooltip::after {
            content: attr(data-tooltip);
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(-5px);
            background: var(--text-primary);
            color: var(--bg-primary);
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 0.8em;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: all 0.2s;
            z-index: 100;
            pointer-events: none;
        }
        .tooltip:hover::after { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

        /* Animated Gradient Text */
        .gradient-text {
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary), var(--accent-primary));
            background-size: 300% 100%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: gradientFlow 6s linear infinite;
        }
        @keyframes gradientFlow { 0% { background-position: 0% 50%; } 100% { background-position: 300% 50%; } }


        @media (prefers-reduced-motion: reduce) {
            html { scroll-behavior: auto; }
            *, *::before, *::after {
                animation-duration: 0.001ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.001ms !important;
            }
            .scroll-indicator { animation: none !important; }
        }

        /* Print Styles */
        @media print {
            .nav, .theme-toggle, .back-to-top, .scroll-progress, .loading-overlay,
            .mobile-menu-btn, .mobile-nav, .command-palette, #particles-canvas,
            .hero-buttons, .scroll-indicator, .contact-section { display: none !important; }
            body { background: white !important; color: black !important; }
            header { min-height: auto !important; padding: 40px 20px !important; background: #1e293b !important; }
            .hero-content { padding: 20px !important; }
            section { break-inside: avoid; page-break-inside: avoid; }
            .timeline-content, .education-card, .cert-card, .skill-category { box-shadow: none !important; border: 1px solid #ddd !important; }
            a { color: inherit !important; text-decoration: none !important; }
        }