html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}

/* make sure to set some focus styles for accessibility */
:focus {
    outline: 0;
}

/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
    display: block;
}

body {
    line-height: 1;
}

ol, ul {
    list-style: none;
}

blockquote, q {
    quotes: none;
}

blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

table, th, td {
    border: 1px solid #555;
}

td {
    padding: 5px;
}

input[type=search]::-webkit-search-cancel-button,
input[type=search]::-webkit-search-decoration,
input[type=search]::-webkit-search-results-button,
input[type=search]::-webkit-search-results-decoration {
    -webkit-appearance: none;
    -moz-appearance: none;
}

input[type=search] {
    -webkit-appearance: none;
    -moz-appearance: none;
    -webkit-box-sizing: content-box;
    -moz-box-sizing: content-box;
    box-sizing: content-box;
}

textarea {
    overflow: auto;
    vertical-align: top;
    resize: vertical;
}

/**
 * Correct `inline-block` display not defined in IE 6/7/8/9 and Firefox 3.
 */

audio,
canvas,
video {
    display: inline-block;
    *display: inline;
    *zoom: 1;
    max-width: 100%;
}

/**
 * Prevent modern browsers from displaying `audio` without controls.
 * Remove excess height in iOS 5 devices.
 */

audio:not([controls]) {
    display: none;
    height: 0;
}

/**
 * Address styling not present in IE 7/8/9, Firefox 3, and Safari 4.
 * Known issue: no IE 6 support.
 */

[hidden] {
    display: none;
}

/**
 * 1. Correct text resizing oddly in IE 6/7 when body `font-size` is set using
 *    `em` units.
 * 2. Prevent iOS text size adjust after orientation change, without disabling
 *    user zoom.
 */

html {
    font-size: 100%; /* 1 */
    -webkit-text-size-adjust: 100%; /* 2 */
    -ms-text-size-adjust: 100%; /* 2 */
}

/**
 * Address `outline` inconsistency between Chrome and other browsers.
 */

a:focus {
    outline: thin dotted;
}

/**
 * Improve readability when focused and also mouse hovered in all browsers.
 */

a:active,
a:hover {
    outline: 0;
}

/**
 * 1. Remove border when inside `a` element in IE 6/7/8/9 and Firefox 3.
 * 2. Improve image quality when scaled in IE 7.
 */

img {
    border: 0; /* 1 */
    -ms-interpolation-mode: bicubic; /* 2 */
}

/**
 * Address margin not present in IE 6/7/8/9, Safari 5, and Opera 11.
 */

figure {
    margin: 0;
}

/**
 * Correct margin displayed oddly in IE 6/7.
 */

form {
    margin: 0;
}

/**
 * Define consistent border, margin, and padding.
 */

fieldset {
    border: 1px solid #c0c0c0;
    margin: 0 2px;
    padding: 0.35em 0.625em 0.75em;
}

/**
 * 1. Correct color not being inherited in IE 6/7/8/9.
 * 2. Correct text not wrapping in Firefox 3.
 * 3. Correct alignment displayed oddly in IE 6/7.
 */

legend {
    border: 0; /* 1 */
    padding: 0;
    white-space: normal; /* 2 */
    *margin-left: -7px; /* 3 */
}

/**
 * 1. Correct font size not being inherited in all browsers.
 * 2. Address margins set differently in IE 6/7, Firefox 3+, Safari 5,
 *    and Chrome.
 * 3. Improve appearance and consistency in all browsers.
 */

button,
input,
select,
textarea {
    font-size: 100%; /* 1 */
    margin: 0; /* 2 */
    vertical-align: baseline; /* 3 */
    *vertical-align: middle; /* 3 */
}

/**
 * Address Firefox 3+ setting `line-height` on `input` using `!important` in
 * the UA stylesheet.
 */

button,
input {
    line-height: normal;
}

/**
 * Address inconsistent `text-transform` inheritance for `button` and `select`.
 * All other form control elements do not inherit `text-transform` values.
 * Correct `button` style inheritance in Chrome, Safari 5+, and IE 6+.
 * Correct `select` style inheritance in Firefox 4+ and Opera.
 */

button,
select {
    text-transform: none;
}

/**
 * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
 *    and `video` controls.
 * 2. Correct inability to style clickable `input` types in iOS.
 * 3. Improve usability and consistency of cursor style between image-type
 *    `input` and others.
 * 4. Remove inner spacing in IE 7 without affecting normal text inputs.
 *    Known issue: inner spacing remains in IE 6.
 */

button,
html input[type="button"], /* 1 */
input[type="reset"],
input[type="submit"] {
    -webkit-appearance: button; /* 2 */
    cursor: pointer; /* 3 */
    *overflow: visible;  /* 4 */
}

/**
 * Re-set default cursor for disabled elements.
 */

button[disabled],
html input[disabled] {
    cursor: default;
}

/**
 * 1. Address box sizing set to content-box in IE 8/9.
 * 2. Remove excess padding in IE 8/9.
 * 3. Remove excess padding in IE 7.
 *    Known issue: excess padding remains in IE 6.
 */

input[type="checkbox"],
input[type="radio"] {
    box-sizing: border-box; /* 1 */
    padding: 0; /* 2 */
    *height: 13px; /* 3 */
    *width: 13px; /* 3 */
}

/**
 * 1. Address `appearance` set to `searchfield` in Safari 5 and Chrome.
 * 2. Address `box-sizing` set to `border-box` in Safari 5 and Chrome
 *    (include `-moz` to future-proof).
 */

input[type="search"] {
    -webkit-appearance: textfield; /* 1 */
    -moz-box-sizing: content-box;
    -webkit-box-sizing: content-box; /* 2 */
    box-sizing: content-box;
}

/**
 * Remove inner padding and search cancel button in Safari 5 and Chrome
 * on OS X.
 */

input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
    -webkit-appearance: none;
}

/**
 * Remove inner padding and border in Firefox 3+.
 */

button::-moz-focus-inner,
input::-moz-focus-inner {
    border: 0;
    padding: 0;
}

/**
 * 1. Remove default vertical scrollbar in IE 6/7/8/9.
 * 2. Improve readability and alignment in all browsers.
 */

textarea {
    overflow: auto; /* 1 */
    vertical-align: top; /* 2 */
}

/**
 * Remove most spacing between table cells.
 */

table {
    border-collapse: collapse;
    border-spacing: 0;
}

html,
button,
input,
select,
textarea {
    color: #222;
}


::-moz-selection {
    background: #b3d4fc;
    text-shadow: none;
}

::selection {
    background: #b3d4fc;
    text-shadow: none;
}

img {
    vertical-align: middle;
}

fieldset {
    border: 0;
    margin: 0;
    padding: 0;
}

textarea {
    resize: vertical;
}

.chromeframe {
    margin: 0.2em 0;
    background: #ccc;
    color: #000;
    padding: 0.2em 0;
}

html {
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI",Arial,sans-serif;
    font-style: normal;
    font-size: 16pt;
    line-height: 1.5;
    font-weight: 200;
    background-color: #171717;
    color: #EEEEEE;
}

p {
    margin-bottom: 10px;
}

h1 {
    font-size: 36pt;
    margin-bottom: 20px;
    font-weight: 300;
    color: #FFFFFF;
}

h2 {
    font-size: 24pt;
    font-weight: 500;
    margin-top: 20px;
    margin-bottom: 20px;
    color: #FFFFFF;
}

pre {
    font-family: 'Roboto Mono', monospace;
    font-size: 16px;
}

*, *::before, *::after {
    box-sizing: inherit;
}

a {
    color: #EEEEEE;
}

a:active, a:focus {
    outline: 0;
    border: none;
}

table {

}

a.link_in_text {
    font-size: 32px;
    font-weight: bold;
    text-decoration: underline;
    color: #D27607;
}

.dark_block {
    background-color: #272727;
    padding: 12px;
}

.wrapper {
    max-width: 1100px;
    background-color: #333333;
    margin: 0 auto;
}

.main_content {
    min-height: calc(100vh - 200px);
}

.main_content .wrapper {
    padding: 0;
    background-color: transparent;
}

/* Modern Header Styles */
.site_header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: linear-gradient(135deg, rgba(23, 23, 23, 0.98) 0%, rgba(30, 20, 40, 0.98) 100%);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.2);
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.1);
}

.site_header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(139, 92, 246, 0.5) 25%, 
        rgba(34, 120, 181, 0.5) 50%, 
        rgba(139, 92, 246, 0.5) 75%, 
        transparent 100%);
    background-size: 200% 100%;
    animation: shimmer 48s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% {
        background-position: -200% 0;
    }
    50% {
        background-position: 200% 0;
    }
}

.header_container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.header_content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    gap: 30px;
}

.header_logo_link {
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: opacity 0.3s ease;
}

.header_logo_link:hover {
    opacity: 0.8;
}

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

.header_avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(139, 92, 246, 0.3);
    transition: all 0.3s ease;
    box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.4);
}

.header_logo_link:hover .header_avatar {
    border-color: #8B5CF6;
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.2);
    transform: scale(1.05);
}

.header_logo_text {
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: 'Roboto Mono', monospace;
}

.header_logo_prefix {
    font-size: 18px;
    font-weight: 400;
    background: linear-gradient(135deg, #8B5CF6 0%, #A855F7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    user-select: none;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.header_logo_name {
    font-size: 18px;
    font-weight: 500;
    color: #FFFFFF;
    letter-spacing: 0;
    font-family: 'Roboto Mono', monospace;
    transition: all 0.3s ease;
}

.header_logo_link:hover .header_logo_name {
    color: #A855F7;
    text-shadow: 0 0 10px rgba(168, 85, 247, 0.5);
}

.header_logo_suffix {
    font-size: 18px;
    font-weight: 400;
    color: #888888;
    font-family: 'Roboto Mono', monospace;
}

.header_nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.header_nav_list {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.header_nav_item {
    margin: 0;
}

.header_nav_link {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 400;
    color: #CCCCCC;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.header_nav_link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.2), transparent);
    transition: left 0.5s ease;
}

.header_nav_link:hover::before {
    left: 100%;
}

.header_nav_link:hover {
    color: #FFFFFF;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(34, 120, 181, 0.15) 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

.header_nav_link.active {
    color: #FFFFFF;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.25) 0%, rgba(34, 120, 181, 0.25) 100%);
    border: 1px solid rgba(139, 92, 246, 0.4);
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

.header_nav_link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #8B5CF6, transparent);
    animation: activeGlow 2s ease-in-out infinite;
}

@keyframes activeGlow {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

.header_nav_link:active {
    background-color: rgba(255, 255, 255, 0.1);
}

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

.header_social_link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: #CCCCCC;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(34, 120, 181, 0.1) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    position: relative;
    overflow: hidden;
}

.header_social_link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: width 0.4s ease, height 0.4s ease;
}

.header_social_link:hover::before {
    width: 100px;
    height: 100px;
}

.header_social_link:hover {
    color: #A855F7;
    border-color: #8B5CF6;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.3);
}

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

/* Legacy header styles for backward compatibility */
.header {
    margin-top: 10px;
    width: 100%;
}

.header_wrapper {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
}

.header_link {
    font-size: 18px;
    color: #FFFFFF;
    text-decoration: none;
}

.header_link:hover, .header_link:focus, .header_link:active {
    opacity: .75;
}

.intro {
    padding-top: 40px;
    margin-bottom: 40px;
}

.intro_items {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.intro_left {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    justify-content: center;
    flex-grow: 1;
}

.intro_right {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    flex-grow: 1;
}

.intro_right_img {
    object-fit: fill;
    margin: 5px;
    min-width: 250px;
    max-width: 250px;
    min-height: 250px;
    max-height: 250px;
}

.intro_left_item {
    margin-bottom: 10px;
}

.intro_left_first {
    font-size: 48px;
    font-weight: 300;
    color: #2278B5;
}

.intro_left_second {
    font-size: 20px;
    font-weight: 300;
}

.intro_left_third {
}

.intro_left_second>p {
    margin-bottom: 10px;
}

.download_link {
    text-decoration: none;
}

.download_link:hover, .download_link:focus, .download_link:active {
    opacity: .75;
}

.applications {
    margin-bottom: 40px;
}

.applications_items {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.application_item {
    display: flex;
    flex-wrap: nowrap;
    align-items: flex-start;
    max-width: 450px;
    margin: 20px;
}

.application_item_text_items {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    justify-content: center;
    padding-left: 10px;
}

.application_item_text_item1 {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 10px;
}

.application_item_text_item2 {
    font-size: 16px;
    font-weight: 400;
}

.application_item_link {
    text-decoration: none;
}

.application_item_link:hover, .application_item_link:focus, .application_item_link:active {
    opacity: .75;
}

.bottom {
    margin-top: 60px;
    width: 100%;
    padding: 40px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #1a0f26 100%);
    border-top: 1px solid rgba(139, 92, 246, 0.2);
}

.bottom .wrapper {
    background-color: transparent;
}

.bottom .dark_block {
    background-color: transparent;
    padding: 0;
}

.bottom_columns {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.bottom_list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: center;
    gap: 30px;
    margin: 0;
}

.bottom_item {
    margin: 0;
}

.bottom_item_copyright {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    text-align: right;
}

.copyright_text {
    font-size: 14px;
    color: #888888;
    font-weight: 300;
}

.copyright_name {
    font-size: 15px;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 500;
}

.bottom_link {
    font-size: 15px;
    color: #CCCCCC;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.bottom_link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #8B5CF6 0%, #2278B5 100%);
    transition: width 0.3s ease;
}

.bottom_link:hover, .bottom_link:focus, .bottom_link:active {
    color: #FFFFFF;
}

.bottom_link:hover::after {
    width: 100%;
}

.gazer_content_table {
    font-family: 'Roboto Mono', monospace;
    font-size: 14pt;
    max-width: 550px;
}

.gazer_channel_data_item {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-end;
    align-content: flex-end;
    border-bottom: 1px solid #AAA;
    text-decoration: none;
    font-size: 15px;
}

.gazer_channel_data_item:hover {
    background-color: #333333;
}

.gazer_channel_block {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.gazer_channel_left {
    flex-grow: 1;
}

.gazer_channel_right {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 200px;
    max-width: 500px;
}

.gazer_channel_value {
    word-break: break-all;
}

.gazer_item_block {
    font-family: 'Roboto Mono', monospace;
    font-size: 14pt;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.gazer_item_top {
}

.gazer_item_bottom {
    display: flex;
    flex-direction: column;
}

.gazer_item_value {
    max-width: 550px;
    word-break: break-all;
}

.sensor_name {
    border-bottom: 1px solid;
}

.sensor_description {
}

.sensor_parameters {
    display: flex;
    flex-direction: column;
}

.sensor_parameter {
    display: flex;
    flex-direction: column;
}

.sensor_parameter_name {
    font-family: 'Roboto Mono', monospace;
    font-size: 1.2em;
    font-weight: 400;
    margin-right: 10px;
}

.sensor_parameter_description {
    padding-left: 20px;
    font-style: italic;
}

.sensor_data_items {
}

/* Portfolio Styles */
.hero {
    padding: 80px 20px;
    text-align: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #1a0f26 50%, #2d2d2d 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.hero_content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero_greeting {
    font-size: 32px;
    margin-bottom: 20px;
    color: #EEEEEE;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero_title {
    font-size: 48px;
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #FFFFFF;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.5s forwards;
}

.hero_title strong {
    font-weight: 700;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero_subtitle {
    font-size: 24px;
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 40px;
    color: #CCCCCC;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.8s forwards;
}

.hero_subtitle strong {
    font-weight: 500;
    color: #FFFFFF;
}

.hero_actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.1s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn_primary {
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.btn_primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn_primary:hover::before {
    left: 100%;
}

.btn_primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.btn_secondary {
    background-color: transparent;
    color: #EEEEEE;
    border-color: rgba(139, 92, 246, 0.5);
}

.btn_secondary:hover {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(34, 120, 181, 0.1) 100%);
    border-color: #8B5CF6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

.tech_stack {
    padding: 60px 20px;
    background-color: #1a1a1a;
}

.section_header {
    text-align: center;
    margin-bottom: 40px;
}

.section_header h2 {
    font-size: 32px;
    font-weight: 500;
    color: #FFFFFF;
}

.tech_list {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    max-width: 1000px;
    margin: 0 auto;
}

.tech_list_secondary {
    margin-top: 20px;
    gap: 12px;
}

.tech_list_tertiary {
    margin-top: 20px;
    gap: 12px;
}

.tech_item {
    padding: 12px 24px;
    background-color: #272727;
    border-radius: 8px;
    font-size: 16px;
    color: #EEEEEE;
    transition: all 0.3s ease;
    border: 1px solid #333333;
}

.tech_item_main {
    padding: 16px 32px;
    font-size: 20px;
    font-weight: 600;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(34, 120, 181, 0.2) 100%);
    border: 2px solid rgba(139, 92, 246, 0.4);
    color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

.tech_item_main:hover {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.3) 0%, rgba(34, 120, 181, 0.3) 100%);
    border-color: #8B5CF6;
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.tech_item_secondary_2 {
    padding: 13px 26px;
    font-size: 17px;
    font-weight: 500;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(34, 120, 181, 0.15) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    color: #FFFFFF;
}

.tech_item_secondary_2:hover {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.25) 0%, rgba(34, 120, 181, 0.25) 100%);
    border-color: #8B5CF6;
    box-shadow: 0 5px 15px rgba(139, 92, 246, 0.3);
}

.tech_item_secondary {
    padding: 10px 20px;
    font-size: 14px;
    background-color: #272727;
    border: 1px solid #333333;
}

.tech_item:hover {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(34, 120, 181, 0.15) 100%);
    border-color: #8B5CF6;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.tech_item_secondary:hover {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.12) 0%, rgba(34, 120, 181, 0.12) 100%);
    border-color: #8B5CF6;
    box-shadow: 0 3px 10px rgba(139, 92, 246, 0.25);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature_card {
    padding: 30px;
    background-color: #272727;
    border-radius: 12px;
    border: 1px solid #333333;
    transition: all 0.3s ease;
}

.feature_card:hover {
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
    border-color: #8B5CF6;
    background: linear-gradient(135deg, #272727 0%, rgba(139, 92, 246, 0.05) 100%);
}

.feature_card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #FFFFFF;
}

.feature_card p {
    font-size: 16px;
    line-height: 1.6;
    color: #CCCCCC;
}

.expertise {
    padding: 60px 20px;
    background-color: #1a1a1a;
}

.expertise_section {
    max-width: 1000px;
    margin: 0 auto 80px;
}

.expertise_section:last-child {
    margin-bottom: 0;
}

.expertise_section h2 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #FFFFFF;
}

.expertise_subtitle {
    font-size: 20px;
    font-weight: 300;
    margin-bottom: 12px;
    color: #CCCCCC;
}

.expertise_section > p {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 40px;
    color: #CCCCCC;
}

.expertise_items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.expertise_item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.expertise_number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    color: #FFFFFF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.expertise_content h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #FFFFFF;
}

.expertise_content p {
    font-size: 16px;
    line-height: 1.6;
    color: #CCCCCC;
}

.projects {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.projects h2 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 40px;
    text-align: center;
    color: #FFFFFF;
}

.project_card {
    padding: 40px;
    background-color: #272727;
    border-radius: 12px;
    border: 1px solid #333333;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.project_card:hover {
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
    border-color: #8B5CF6;
    background: linear-gradient(135deg, #272727 0%, rgba(139, 92, 246, 0.05) 100%);
}

.project_card h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #FFFFFF;
}

.project_type {
    font-size: 14px;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.project_description {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 20px;
    color: #CCCCCC;
}

.project_features {
    list-style: none;
    margin-bottom: 24px;
    padding-left: 0;
}

.project_features li {
    font-size: 16px;
    line-height: 1.8;
    color: #CCCCCC;
    padding-left: 24px;
    position: relative;
}

.project_features li:before {
    content: "•";
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 20px;
    position: absolute;
    left: 0;
}

.project_link {
    display: inline-block;
    font-size: 16px;
    font-weight: 500;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all 0.3s ease;
}

.project_link:hover {
    transform: translateX(4px);
    filter: brightness(1.2);
}

.notes_section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.notes_section h1 {
    font-size: 48px;
    font-weight: 600;
    margin-bottom: 40px;
    text-align: center;
    color: #FFFFFF;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.notes_links {
    margin-top: 40px;
}

/* Software catalog: compact grid, multiple columns on wide viewports */
.soft_catalog {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 300px));
    gap: 14px 16px;
    justify-content: start;
}

.soft_catalog .link_card {
    position: relative;
    max-width: 300px;
    width: 100%;
    padding: 18px 16px;
    margin-bottom: 0;
    box-sizing: border-box;
}

/* Full-card click target */
.soft_catalog .link_card_primary {
    position: absolute;
    inset: 0;
    z-index: 1;
    border-radius: 12px;
    text-decoration: none;
}

.soft_catalog .link_card_primary:focus {
    outline: none;
}

.soft_catalog .link_card_primary:focus-visible {
    outline: 2px solid #8B5CF6;
    outline-offset: 2px;
}

.soft_catalog .link_card h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.soft_catalog .link_description {
    font-size: 15px;
    line-height: 1.5;
    margin-bottom: 14px;
}

.soft_catalog .link_card > p {
    margin-top: 0;
    margin-bottom: 6px;
}

.soft_catalog .link_card > p:last-child {
    margin-bottom: 0;
}

.link_card {
    padding: 40px;
    background-color: #272727;
    border-radius: 12px;
    border: 1px solid #333333;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.link_card:hover {
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
    border-color: #8B5CF6;
    background: linear-gradient(135deg, #272727 0%, rgba(139, 92, 246, 0.05) 100%);
}

.link_card h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #FFFFFF;
}

.link_description {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 24px;
    color: #CCCCCC;
}

.link_url {
    display: inline-block;
    font-size: 16px;
    font-weight: 500;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all 0.3s ease;
}

.link_url:hover {
    transform: translateX(4px);
    filter: brightness(1.2);
}

.about {
    padding: 60px 20px;
    background-color: #1a1a1a;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about h2 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 30px;
    color: #FFFFFF;
}

.about p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #CCCCCC;
}

.about p strong {
    color: #FFFFFF;
    font-weight: 600;
}

.contacts_section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.contacts_section h1 {
    font-size: 48px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #FFFFFF;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contacts_subtitle {
    font-size: 20px;
    color: #CCCCCC;
    margin-bottom: 50px;
    font-weight: 300;
}

.contacts_grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.contact_card {
    padding: 40px 30px;
    background-color: #272727;
    border-radius: 12px;
    border: 1px solid #333333;
    transition: all 0.3s ease;
    text-align: center;
}

.contact_card_link {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.contact_card_link:hover {
    box-shadow: 0 12px 32px rgba(139, 92, 246, 0.3);
    border-color: #8B5CF6;
    background: linear-gradient(135deg, #272727 0%, rgba(139, 92, 246, 0.08) 100%);
}

.contact_icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(34, 120, 181, 0.2) 100%);
    border-radius: 50%;
    color: #8B5CF6;
    transition: all 0.3s ease;
}

.contact_card:hover .contact_icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.3) 0%, rgba(34, 120, 181, 0.3) 100%);
    transform: scale(1.1);
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.4);
}

.contact_card h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #FFFFFF;
}

.contact_link {
    display: inline-block;
    font-size: 16px;
    color: #CCCCCC;
    text-decoration: none;
    transition: all 0.3s ease;
    word-break: break-word;
}

.contact_card_link:hover .contact_link {
    color: #8B5CF6;
}

@media (max-width: 768px) {
    .header_content {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .header_nav {
        order: 3;
        width: 100%;
        justify-content: flex-start;
    }
    
    .header_nav_list {
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .header_nav_link {
        padding: 6px 12px;
        font-size: 14px;
    }
    
    .header_social {
        margin-left: auto;
    }
    
    .hero_title {
        font-size: 36px;
    }
    
    .hero_subtitle {
        font-size: 20px;
    }
    
    .tech_list {
        gap: 12px;
    }
    
    .tech_item {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .tech_item_main {
        padding: 14px 24px;
        font-size: 18px;
    }
    
    .tech_item_secondary_2 {
        padding: 11px 22px;
        font-size: 15px;
    }
    
    .tech_item_secondary {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .expertise_items {
        grid-template-columns: 1fr;
    }
    
    .project_card {
        padding: 30px 20px;
    }
    
    .link_card {
        padding: 30px 20px;
    }

    .soft_catalog {
        grid-template-columns: 1fr;
    }

    .soft_catalog .link_card {
        max-width: none;
        padding: 18px 16px;
    }
    
    .contacts_section h1 {
        font-size: 36px;
    }
    
    .contacts_subtitle {
        font-size: 18px;
    }
    
    .notes_section h1 {
        font-size: 36px;
    }
    
    .contacts_grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact_card {
        padding: 30px 20px;
    }
    
    .bottom_columns {
        flex-direction: column;
        align-items: center;
        gap: 20px;
        text-align: center;
    }
    
    .bottom_list {
        justify-content: center;
    }
    
    .bottom_item_copyright {
        align-items: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .header_logo_prefix,
    .header_logo_name,
    .header_logo_suffix {
        font-size: 16px;
    }
    
    .header_avatar {
        width: 32px;
        height: 32px;
    }
    
    .header_nav_list {
        gap: 2px;
    }
    
    .header_nav_link {
        padding: 6px 10px;
        font-size: 13px;
    }
    
    .header_logo_text {
        gap: 2px;
    }
}

/* Resume Styles */
.resume_section {
    padding: 60px 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.resume_section h1 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 50px;
    color: #FFFFFF;
    text-align: center;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.resume_timeline {
    position: relative;
    padding-left: 0;
}

.resume_timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #8B5CF6 0%, #2278B5 100%);
    opacity: 0.3;
}

.resume_item {
    position: relative;
    padding: 30px 30px 30px 70px;
    margin-bottom: 40px;
    background-color: #272727;
    border-radius: 12px;
    border: 1px solid #333333;
    transition: all 0.3s ease;
}

.resume_item::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 40px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #8B5CF6 0%, #2278B5 100%);
    border: 3px solid #1a1a1a;
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.3);
}

.resume_item:hover {
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.2);
    border-color: #8B5CF6;
    background: linear-gradient(135deg, #272727 0%, rgba(139, 92, 246, 0.05) 100%);
}

.resume_item_header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 16px;
}

.resume_item_title h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #FFFFFF;
}

.resume_item_title h3 {
    font-size: 18px;
    font-weight: 500;
    color: #8B5CF6;
}

.resume_item_meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    text-align: right;
}

.resume_date {
    font-size: 14px;
    font-weight: 500;
    color: #CCCCCC;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(34, 120, 181, 0.15) 100%);
    padding: 6px 12px;
    border-radius: 6px;
    white-space: nowrap;
}

.resume_location {
    font-size: 13px;
    color: #888888;
    display: flex;
    align-items: center;
    gap: 4px;
}

.resume_location::before {
    content: '📍';
    font-size: 12px;
}

.resume_description {
    font-size: 16px;
    line-height: 1.6;
    color: #CCCCCC;
    margin-bottom: 20px;
}

.resume_responsibilities {
    margin-top: 20px;
}

.resume_responsibilities h4 {
    font-size: 16px;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 12px;
}

.resume_responsibilities ul {
    list-style: none;
    padding-left: 0;
}

.resume_responsibilities li {
    font-size: 15px;
    line-height: 1.8;
    color: #CCCCCC;
    padding-left: 24px;
    position: relative;
    margin-bottom: 10px;
}

.resume_responsibilities li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #8B5CF6;
    font-size: 18px;
    font-weight: bold;
}

@media (max-width: 768px) {
    .resume_timeline::before {
        left: 15px;
    }
    
    .resume_item {
        padding: 25px 20px 25px 50px;
    }
    
    .resume_item::before {
        left: 7px;
        width: 14px;
        height: 14px;
    }
    
    .resume_item_header {
        flex-direction: column;
    }
    
    .resume_item_meta {
        align-items: flex-start;
        text-align: left;
    }
    
    .resume_section h1 {
        font-size: 32px;
    }
    
    .resume_item_title h2 {
        font-size: 20px;
    }
    
    .resume_item_title h3 {
        font-size: 16px;
    }
}