/* phosphor themes */

:root {
    --terminal-color: rgb(124, 198, 118);
    --terminal-rgb: 124, 198, 118;
}

body.green {
    --terminal-color: rgb(124, 198, 118);
    --terminal-rgb: 124, 198, 118;
}

body.amber {
    --terminal-color: rgb(255, 176, 0);
    --terminal-rgb: 255, 176, 0;
}

body.cyan {
    --terminal-color: rgb(0, 255, 255);
    --terminal-rgb: 0, 255, 255;
}

body.blue {
    --terminal-color: rgb(130, 170, 255);
    --terminal-rgb: 130, 170, 255;
}

body.white {
    --terminal-color: rgb(255, 255, 255);
    --terminal-rgb: 255, 255, 255;
}

/* base */

* {
    box-sizing: border-box;
}

html {
    height: 100%;
    padding: 0;
    margin: 0;
}

body {
    background-color: #0a0a0a;
    color: var(--terminal-color);
    height: 100%;
    padding: 20px;
    margin: 0;
    scrollbar-width: auto;
    scrollbar-color: var(--terminal-color) #020202;
}

body,
input,
textarea {
    font-family: "Source Code Pro", "Lucida Console", "Andale Mono", Courier, monospace;
}

::selection {
    background: var(--terminal-color);
    color: #020202;
}

/* terminal frame */

.terminal-housing {
    max-width: 1200px;
    margin: 0 auto;
    background: linear-gradient(165deg, #1a1a1a 0%, #0d0d0d 50%, #080808 100%);
    border-radius: 16px;
    padding: 3px;
    box-shadow: 
        0 25px 50px rgba(0,0,0,0.5),
        0 0 0 1px rgba(255,255,255,0.03),
        inset 0 1px 0 rgba(255,255,255,0.05),
        0 0 80px rgba(var(--terminal-rgb), 0.07);
    height: calc(100vh - 40px);
    height: calc(100dvh - 40px);
}

.terminal-bezel {
    background: linear-gradient(180deg, #0f0f0f 0%, #141414 100%);
    border-radius: 14px;
    padding: 2px;
    height: 100%;
    box-shadow: 
        inset 0 1px 2px rgba(0,0,0,0.8),
        inset 0 -1px 0 rgba(255,255,255,0.02);
}

.terminal-screen {
    background: #020202;
    border-radius: 12px;
    height: 100%;
    position: relative;
    overflow: hidden;
}

/* vignette */
.terminal-screen::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        ellipse at center,
        transparent 0%,
        transparent 70%,
        rgba(0,0,0,0.4) 100%
    );
    pointer-events: none;
    border-radius: 12px;
    z-index: 9998;
}

/* scanlines */
.terminal-screen::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.02) 2px,
        rgba(0, 0, 0, 0.02) 4px
    );
    pointer-events: none;
    border-radius: 12px;
    z-index: 9999;
}

/* header */

.header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    border-bottom: 1px solid rgba(var(--terminal-rgb), 0.2);
    background: linear-gradient(180deg, rgba(255,255,255,0.01) 0%, transparent 100%);
    position: relative;
    z-index: 1001;
}

.header-logo {
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 3px;
    text-shadow: 0 0 20px rgba(var(--terminal-rgb), 0.3);
    color: var(--terminal-color);
    opacity: 0;
    animation: contentFadeIn 0.3s ease-out 1.5s forwards;
}

@keyframes fadeInHeader {
    to {
        opacity: 1;
    }
}

/* phosphor knob */

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

.knob-label {
    font-size: 9px;
    letter-spacing: 2px;
    opacity: 0;
    text-transform: uppercase;
    color: var(--terminal-color);
    animation: fadeInLabel 0.3s ease-out 1.5s forwards;
}

@keyframes fadeInLabel {
    to {
        opacity: 0.4;
    }
}

.knob-mount {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(165deg, #1a1a1a 0%, #0d0d0d 50%, #080808 100%);
    padding: 3px;
    box-shadow: 
        0 4px 12px rgba(0,0,0,0.6),
        0 0 0 1px rgba(255,255,255,0.03),
        inset 0 1px 0 rgba(255,255,255,0.05);
}

.knob-inset {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(180deg, #0a0a0a 0%, #111 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.8);
}

.knob {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 50%, #111 100%);
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: 
        0 2px 6px rgba(0,0,0,0.5),
        inset 0 1px 0 rgba(255,255,255,0.08),
        inset 0 -1px 0 rgba(0,0,0,0.3);
    cursor: pointer;
    position: relative;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.knob:hover {
    box-shadow: 
        0 2px 6px rgba(0,0,0,0.5),
        0 0 20px rgba(var(--terminal-rgb), 0.2),
        inset 0 1px 0 rgba(255,255,255,0.08),
        inset 0 -1px 0 rgba(0,0,0,0.3);
}

.knob:active {
    transform: scale(0.96);
}

/* indicator */
.knob::before {
    content: "";
    position: absolute;
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 6px;
    background: var(--terminal-color);
    border-radius: 1px;
    box-shadow: 0 0 8px var(--terminal-color);
}

/* rotation */
.knob.pos-0 { transform: rotate(0deg); }
.knob.pos-1 { transform: rotate(72deg); }
.knob.pos-2 { transform: rotate(144deg); }
.knob.pos-3 { transform: rotate(216deg); }
.knob.pos-4 { transform: rotate(288deg); }

.color-indicator {
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0;
    min-width: 45px;
    color: var(--terminal-color);
    animation: fadeInIndicator 0.3s ease-out 1.5s forwards;
}

@keyframes fadeInIndicator {
    to {
        opacity: 0.8;
    }
}

/* blinking cursor */

.cursor {
    opacity: 0.6;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* typography */

h1,
h2 {
    text-shadow:
        0 0 5px rgba(var(--terminal-rgb), 0.6),
        0 0 15px rgba(var(--terminal-rgb), 0.3);
}

h1 {
    font-size: 60px;
    margin-top: -10px;
    letter-spacing: 2px;
}

h2 {
    font-size: 36px;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

h1,
h2,
h3 {
    margin-top: 0;
    text-transform: uppercase;
    font-weight: 900;
}

h2::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background: repeating-linear-gradient(
        90deg,
        var(--terminal-color) 0px,
        var(--terminal-color) 4px,
        transparent 4px,
        transparent 8px
    );
    margin-top: 5px;
}

h3::before {
    content: '▸ ';
    color: var(--terminal-color);
    font-weight: bold;
}

.symbol {
    font-weight: bold;
}

.subtitle {
    font-size: 16px;
    color: rgba(var(--terminal-rgb), 0.6);
    margin-top: -5px;
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* cta elements */

.cta-link {
    display: inline-block;
    border: 2px solid var(--terminal-color);
    padding: 10px 20px;
    margin-top: 10px;
    text-decoration: none;
    color: var(--terminal-color);
    cursor: pointer;
    transition: all 0.2s;
    animation: pulse-glow 4s ease-in-out 1.5s infinite;
}

.cta-link:hover {
    background: var(--terminal-color);
    color: #020202;
    box-shadow: 0 0 20px rgba(var(--terminal-rgb), 0.5);
}

.cta-nav {
    animation: pulse-glow 4s ease-in-out 1.5s infinite;
}

@keyframes pulse-glow {
    0%,
    100% {
        text-shadow: 0 0 5px rgba(var(--terminal-rgb), 0.5);
    }
    50% {
        text-shadow:
            0 0 20px rgba(var(--terminal-rgb), 1),
            0 0 30px rgba(var(--terminal-rgb), 0.5);
    }
}

/* layout structure */

#wrapper {
    margin: 0;
    padding: 0 30px 30px;
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    overflow: hidden;
}

#main_panel,
#bottom_logo {
    opacity: 0;
    animation: contentFadeIn 0.3s 1.5s forwards;
}

@keyframes contentFadeIn {
    to {
        opacity: 1;
    }
}

#main_panel {
    flex: 1 1 auto;
    display: flex;
    overflow: hidden;
    position: relative;
    min-height: 0;
    margin-bottom: 15px;
}

/* loading screen */

#loader {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #020202;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding-left: 5%;
    padding-right: 5%;
    z-index: 1000;
    font-family: "Source Code Pro", monospace;
    animation: loaderFadeOut 0.3s 1.5s forwards;
}

#loader pre {
    font-size: clamp(3px, 1.1vw, 10px);
    line-height: 1.1;
    margin: 0 0 20px 0;
    white-space: pre;
    opacity: 0;
    animation: textAppear 0.2s 0.1s forwards;
    max-width: 100%;
    overflow: hidden;
}

#loader p {
    font-size: 14px;
    margin-bottom: 30px;
    opacity: 0;
    animation: textAppear 0.2s 0.3s forwards;
}

#loader::before {
    content: 'Loading system components...';
    font-size: 16px;
    margin-bottom: 8px;
    opacity: 0;
    animation: textAppear 0.2s 0.5s forwards;
}

#loader::after {
    content: '░░░░░░░░░░░░░░░░░░░░';
    font-size: 16px;
    letter-spacing: 2px;
    opacity: 0;
    animation: progressBar 0.8s 0.7s forwards;
}

@keyframes progressBar {
    0% {
        content: '░░░░░░░░░░░░░░░░░░░░';
        opacity: 1;
    }
    15% { content: '███░░░░░░░░░░░░░░░░░'; }
    30% { content: '██████░░░░░░░░░░░░░░'; }
    50% { content: '█████████░░░░░░░░░░░'; }
    70% { content: '████████████░░░░░░░░'; }
    85% { content: '███████████████░░░░░'; }
    100% { content: '████████████████████'; }
}

@keyframes textAppear {
    to {
        opacity: 1;
    }
}

@keyframes loaderFadeOut {
    to {
        opacity: 0;
        pointer-events: none;
        visibility: hidden;
    }
}

/* left column - navigation */

#leftcolumn {
    flex: 0 0 30%;
    padding-right: 20px;
    padding-bottom: 0;
    height: 100%;
    overflow-y: auto;
    box-sizing: border-box;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--terminal-color) #020202;
}

/* right column - content */

#rightcolumn {
    flex: 1;
    height: 100%;
    overflow: hidden;
    box-sizing: border-box;
    -webkit-overflow-scrolling: touch;
}

/* navigation menu */

#nav_menu {
    width: 100%;
    font-size: 30px;
}

#nav_menu .nav_item {
    cursor: pointer;
    position: relative;
}

#nav_menu .nav_item td {
    position: relative;
}

#nav_menu .nav_item td::before {
    content: '›';
    position: absolute;
    left: -15px;
    opacity: 0;
    transition: opacity 0.2s, left 0.2s;
    color: var(--terminal-color);
}

#nav_menu .nav_item:hover td::before {
    opacity: 0.5;
    left: -12px;
}

.nav_separator td {
    opacity: 0.3;
    padding: 5px 0;
    font-size: 0.8em;
    pointer-events: none;
    user-select: none;
}

.nav_item input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.nav_link {
    cursor: pointer;
    display: block;
    padding: 10px 0;
    transition: background-color 0.1s;
    user-select: none;
    -webkit-user-select: none;
    text-decoration: none;
    color: inherit;
    -webkit-tap-highlight-color: rgba(var(--terminal-rgb), 0.3);
}

.nav_link:focus {
    outline: 4px solid var(--terminal-color);
    outline-offset: 2px;
    background-color: rgba(var(--terminal-rgb), 0.3);
}

.nav_link:active {
    background-color: rgba(var(--terminal-rgb), 0.2);
}

.lowlight {
    box-shadow: 0 0 0 2px var(--terminal-color) inset;
}

/* content sections */

.content_section {
    display: none;
    padding: 20px;
    height: 100%;
    overflow-y: auto;
    box-sizing: border-box;
    animation: warmup 0.5s ease-out;
}

@keyframes warmup {
    0% {
        opacity: 0;
        filter: brightness(1.5) blur(1px);
    }
    100% {
        opacity: 1;
        filter: brightness(1) blur(0);
    }
}

/* active content */
#nav_home:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #rightcolumn #content_home,
#nav_about:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #rightcolumn #content_about,
#nav_services:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #rightcolumn #content_services,
#nav_projects:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #rightcolumn #content_projects,
#nav_contact:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #rightcolumn #content_contact,
#nav_team:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #rightcolumn #content_team,
#nav_blog:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #rightcolumn #content_blog {
    display: block;
}

/* active nav */
#nav_home:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn label[for="nav_home"],
#nav_about:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn label[for="nav_about"],
#nav_services:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn label[for="nav_services"],
#nav_projects:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn label[for="nav_projects"],
#nav_contact:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn label[for="nav_contact"],
#nav_team:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn label[for="nav_team"],
#nav_blog:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn label[for="nav_blog"] {
    background-color: var(--terminal-color);
    color: #000;
    font-weight: bold;
    position: relative;
}

#nav_home:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_home"]),
#nav_about:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_about"]),
#nav_services:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_services"]),
#nav_projects:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_projects"]),
#nav_contact:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_contact"]),
#nav_team:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_team"]),
#nav_blog:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_blog"]) {
    background-color: var(--terminal-color);
    color: #000;
}

#nav_home:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_home"]) td,
#nav_about:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_about"]) td,
#nav_services:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_services"]) td,
#nav_projects:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_projects"]) td,
#nav_contact:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_contact"]) td,
#nav_team:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_team"]) td,
#nav_blog:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_blog"]) td {
    background-color: var(--terminal-color);
    color: #000;
}

/* content styling */

#detail_price {
    width: 100%;
    font-size: 20px;
    font-weight: bolder;
    border-collapse: collapse;
}

#detail_price th {
    font-weight: normal;
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px dashed rgba(var(--terminal-rgb), 0.3);
}

#detail_price td {
    padding: 8px 12px;
    border-bottom: 1px solid rgba(var(--terminal-rgb), 0.1);
}

#detail_price td:not(:last-child)::after {
    content: '│';
    position: absolute;
    right: 0;
    opacity: 0.2;
    color: var(--terminal-color);
}

.content_box {
    margin: 20px 0;
    line-height: 1.6;
    border-left: 3px solid rgba(var(--terminal-rgb), 0.3);
    padding-left: 15px;
}

.content_box h3 {
    font-size: 24px;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.content_box p {
    font-size: 18px;
    margin-bottom: 15px;
}

.content_box a {
    color: var(--terminal-color);
}

/* intro row */

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

.intro-photo {
    width: 100px;
    height: 100px;
    border: 2px solid var(--terminal-color);
    box-shadow: 0 0 15px rgba(var(--terminal-rgb), 0.3);
    flex-shrink: 0;
    margin-top: 10px;
}

.intro-text h1 {
    margin-bottom: 5px;
}

/* services cta */

.services-cta {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px dashed rgba(var(--terminal-rgb), 0.3);
}

/* projects */

.project-entry {
    margin-bottom: 30px;
}

.project-meta {
    font-size: 14px;
    color: rgba(var(--terminal-rgb), 0.6);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.project-link {
    display: inline-block;
    margin-top: 15px;
    color: var(--terminal-color);
    text-decoration: none;
    border: 1px solid var(--terminal-color);
    padding: 8px 15px;
    transition: all 0.2s;
}

.project-link:hover {
    background: var(--terminal-color);
    color: #020202;
}

/* details/summary */

details {
    margin-bottom: 15px;
}

summary {
    cursor: pointer;
    padding: 10px;
    border: 1px solid var(--terminal-color);
    color: var(--terminal-color);
    font-size: 18px;
    transition: all 0.2s;
}

summary:hover {
    background: rgba(var(--terminal-rgb), 0.1);
}

details[open] summary {
    background: var(--terminal-color);
    color: #020202;
}

/* social icons */

.social-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin: 30px 0;
    padding: 20px 0;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--terminal-color);
    transition: all 0.2s;
    padding: 15px;
    border: 2px solid transparent;
    min-width: 100px;
}

.social-link:hover,
.social-link:focus {
    border: 2px solid var(--terminal-color);
    background-color: rgba(var(--terminal-rgb), 0.1);
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(var(--terminal-rgb), 0.4);
}

.social-link:active {
    transform: translateY(0);
    background-color: rgba(var(--terminal-rgb), 0.2);
}

.social-icon-svg {
    width: 64px;
    height: 64px;
    color: var(--terminal-color);
    transition: all 0.2s;
}

.social-link:hover .social-icon-svg {
    filter: drop-shadow(0 0 10px var(--terminal-color));
}

.social-label {
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
    font-weight: bold;
}

.social-link:hover .social-label {
    opacity: 1;
}

/* terminal form */

.terminal-form {
    margin-top: 20px;
}

.terminal-form .form-header {
    font-size: 18px;
    color: var(--terminal-color);
    margin-bottom: 5px;
}

.terminal-form .form-promise {
    font-size: 13px;
    color: var(--terminal-color);
    opacity: 0.6;
    margin-bottom: 25px;
}

.terminal-form .form-row {
    margin-bottom: 15px;
}

.terminal-form label {
    display: block;
    color: var(--terminal-color);
    margin-bottom: 5px;
    font-size: 14px;
}

.terminal-form input,
.terminal-form textarea {
    width: 100%;
    background: #020202;
    border: 1px solid var(--terminal-color);
    color: var(--terminal-color);
    padding: 10px;
    font-family: inherit;
    font-size: 14px;
    box-sizing: border-box;
}

.terminal-form input::placeholder,
.terminal-form textarea::placeholder {
    color: rgba(var(--terminal-rgb), 0.4);
}

.terminal-form input:focus,
.terminal-form textarea:focus {
    outline: none;
    box-shadow: 0 0 10px rgba(var(--terminal-rgb), 0.5);
}

.terminal-form textarea {
    resize: vertical;
    min-height: 100px;
}

.terminal-form button[type="submit"] {
    background: transparent;
    border: 2px solid var(--terminal-color);
    color: var(--terminal-color);
    padding: 10px 25px;
    font-family: inherit;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 10px;
}

.terminal-form button[type="submit"]:hover {
    background: var(--terminal-color);
    color: #020202;
    box-shadow: 0 0 15px rgba(var(--terminal-rgb), 0.5);
}

.terminal-form .form-status {
    margin-top: 20px;
    font-size: 12px;
    color: rgba(var(--terminal-rgb), 0.6);
}

/* contact layout */
.contact-divider {
    text-align: center;
    opacity: 0.3;
    margin: 20px 0 15px;
    font-size: 14px;
    color: var(--terminal-color);
}

.contact-alt {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.contact-alt-text {
    color: var(--terminal-color);
    opacity: 0.6;
    font-size: 14px;
}

.linkedin-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 2px solid var(--terminal-color);
    color: var(--terminal-color);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.linkedin-button:hover {
    background: var(--terminal-color);
    color: #020202;
    box-shadow: 0 0 15px rgba(var(--terminal-rgb), 0.5);
}

.linkedin-icon {
    width: 18px;
    height: 18px;
}

/* footer */

#bottom_logo {
    flex: 0 0 auto;
    padding: 10px 30px;
    border-top: 2px dashed var(--terminal-color);
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    position: relative;
}

#bottom_logo::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 30px;
    right: 30px;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(var(--terminal-rgb), 0.2) 20%,
        rgba(var(--terminal-rgb), 0.2) 80%,
        transparent 100%
    );
}

.footer-social {
    display: flex;
    gap: 15px;
    align-items: center;
}

.footer-social a {
    opacity: 0.7;
    transition: opacity 0.2s;
    color: var(--terminal-color);
}

.footer-social a:hover {
    opacity: 1;
}

.footer-email-link {
    opacity: 0.7;
    transition: opacity 0.2s;
    color: var(--terminal-color);
    cursor: pointer;
}

.footer-email-link:hover {
    opacity: 1;
}

.footer-email-link:hover .footer-icon-svg {
    filter: drop-shadow(0 0 6px var(--terminal-color));
}

.footer-icon-svg {
    width: 20px;
    height: 20px;
    display: block;
    color: var(--terminal-color);
    transition: all 0.2s;
}

.footer-social a:hover .footer-icon-svg {
    filter: drop-shadow(0 0 6px var(--terminal-color));
}

#footer_links {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 14px;
}

#footer_links a {
    color: var(--terminal-color);
    text-decoration: none;
    opacity: 0.7;
    transition: opacity 0.2s;
    padding: 3px 0;
    display: inline-block;
    line-height: 1.4;
    -webkit-tap-highlight-color: rgba(var(--terminal-rgb), 0.3);
}

#footer_links a:hover,
#footer_links a:active {
    opacity: 1;
}

.footer-cta {
    color: var(--terminal-color);
    font-size: 14px;
    opacity: 0.7;
    cursor: pointer;
    transition: opacity 0.2s;
}

.footer-cta:hover {
    opacity: 1;
}

#footer_links .footer-credit {
    font-size: 12px;
    opacity: 0.3;
}

#footer_links .footer-credit:hover {
    opacity: 0.5;
}

#ascii_logo {
    display: block;
    text-align: right;
    line-height: 1.0;
    margin: 0;
    font-size: 0.5em;
}

/* scrollbar */

::-webkit-scrollbar {
    width: 30px;
    padding: 5px;
}

::-webkit-scrollbar-track {
    border: 2px solid var(--terminal-color);
    border-radius: 0;
    border-width: 0 2px 2px 2px;
}

::-webkit-scrollbar-thumb {
    background-color: var(--terminal-color);
    border-radius: 0;
    box-shadow: inset 0px 0px 0 5px #000;
    margin: 1px;
    border-width: 0px 2px;
    border-color: transparent !important;
    border-style: dashed;
}

/* easter egg */

/* hidden until unlocked */
.nav_secret {
    display: none;
}

.catlog-unlocked .nav_secret {
    display: table-row;
}

/* glitch */
.glitch-effect {
    animation: glitch 0.5s ease-in-out;
}

@keyframes glitch {
    0% { filter: none; transform: translate(0); }
    10% { filter: hue-rotate(90deg) saturate(2); transform: translate(-2px, 1px); }
    20% { filter: hue-rotate(180deg) invert(0.2); transform: translate(2px, -1px); }
    30% { filter: hue-rotate(270deg) saturate(3); transform: translate(-1px, 2px); }
    40% { filter: hue-rotate(360deg) brightness(1.5); transform: translate(1px, -2px); }
    50% { filter: invert(1) hue-rotate(180deg); transform: translate(-2px, 0); }
    60% { filter: hue-rotate(90deg) contrast(2); transform: translate(2px, 1px); }
    70% { filter: none; transform: translate(-1px, -1px); }
    80% { filter: saturate(2) brightness(1.2); transform: translate(1px, 2px); }
    90% { filter: hue-rotate(45deg); transform: translate(0, -1px); }
    100% { filter: none; transform: translate(0); }
}

/* popup */
.secret-popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

.secret-popup.active {
    display: flex;
}

.popup-content {
    background: #020202;
    border: 2px solid var(--terminal-color);
    padding: 40px;
    text-align: center;
    box-shadow: 0 0 30px rgba(var(--terminal-rgb), 0.5);
    animation: popupAppear 0.3s ease-out;
}

@keyframes popupAppear {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.popup-content pre {
    font-size: 24px;
    color: var(--terminal-color);
    margin-bottom: 10px;
    text-shadow: 0 0 10px rgba(var(--terminal-rgb), 0.8);
}

.popup-content p {
    font-size: 16px;
    color: var(--terminal-color);
    opacity: 0.8;
    margin-bottom: 30px;
}

.popup-content button {
    background: transparent;
    border: 2px solid var(--terminal-color);
    color: var(--terminal-color);
    padding: 10px 30px;
    font-family: inherit;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.popup-content button:hover {
    background: var(--terminal-color);
    color: #020202;
}

/* gallery */
.cat-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.cat-photo {
    position: relative;
    overflow: hidden;
    border: 2px solid var(--terminal-color);
}

.cat-photo img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    filter: grayscale(30%) saturate(0.7) sepia(15%);
    transition: all 0.3s;
}

/* phosphor tint */
.cat-photo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(var(--terminal-rgb), 0.1);
    mix-blend-mode: overlay;
    pointer-events: none;
    z-index: 1;
    transition: opacity 0.3s;
}

.cat-photo:hover::before {
    opacity: 0.5;
}

.cat-photo:hover img {
    filter: grayscale(0%) saturate(0.85) sepia(10%);
    transform: scale(1.05);
}

.cat-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.85);
    color: var(--terminal-color);
    padding: 8px;
    font-size: 11px;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-meta {
    opacity: 0.5;
    font-size: 10px;
    margin-left: 10px;
    white-space: nowrap;
}

.cat-photo:hover .cat-caption {
    opacity: 1;
}

/* lightbox */
.photo-lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10001;
    justify-content: center;
    align-items: center;
}

.photo-lightbox.active {
    display: flex;
}

.lightbox-frame {
    position: relative;
    background: #020202;
    border: 2px solid var(--terminal-color);
    padding: 0;
    box-shadow: 0 0 30px rgba(var(--terminal-rgb), 0.5);
    max-width: 90vw;
    max-height: 90vh;
    animation: lightboxAppear 0.3s ease-out;
}

.lightbox-title {
    padding: 10px 50px 10px 15px;
    background: rgba(var(--terminal-rgb), 0.1);
    border-bottom: 1px solid rgba(var(--terminal-rgb), 0.3);
    color: var(--terminal-color);
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@keyframes lightboxAppear {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.lightbox-screen {
    position: relative;
    background: #020202;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.lightbox-screen img {
    display: block;
    max-width: 80vw;
    max-height: 65vh;
    object-fit: contain;
    margin: 0 auto;
}

/* scanlines */
.lightbox-scanlines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.1),
        rgba(0, 0, 0, 0.1) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
}

/* lightbox cleanup */
.lightbox-screen::before,
.lightbox-screen::after {
    display: none;
}

.lightbox-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    gap: 15px;
    border-top: 1px solid rgba(var(--terminal-rgb), 0.3);
}

.lightbox-controls button {
    background: transparent;
    border: 2px solid var(--terminal-color);
    color: var(--terminal-color);
    padding: 8px 20px;
    font-family: inherit;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.lightbox-controls button:hover {
    background: var(--terminal-color);
    color: #020202;
}

.lightbox-close {
    position: absolute;
    top: 12px;
    right: 15px;
    color: var(--terminal-color);
    font-size: 12px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.lightbox-close:hover {
    opacity: 1;
}

.cat-photo {
    cursor: pointer;
}

/* catlog visibility */
#nav_catlog:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #rightcolumn #content_catlog {
    display: block;
}

#nav_catlog:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn label[for="nav_catlog"] {
    background-color: var(--terminal-color);
    color: #000;
    font-weight: bold;
    position: relative;
}

#nav_catlog:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_catlog"]) {
    background-color: var(--terminal-color);
    color: #000;
}

#nav_catlog:checked ~ .terminal-housing .terminal-bezel .terminal-screen #wrapper #main_panel #leftcolumn tr:has(label[for="nav_catlog"]) td {
    background-color: var(--terminal-color);
    color: #000;
}

/* responsive - large tablets */

@media (max-width: 1200px) {
    body {
        padding: 15px;
    }

    .terminal-housing {
        height: calc(100vh - 30px);
        height: calc(100dvh - 30px);
    }

    .header-bar {
        padding: 12px 20px;
    }
}

/* responsive - tablets */

@media (max-width: 968px) {
    body {
        padding: 10px;
    }

    .terminal-housing {
        height: calc(100vh - 20px);
        height: calc(100dvh - 20px);
    }

    #main_panel {
        flex-direction: column;
        margin-bottom: 10px;
    }

    #wrapper {
        padding: 0 20px 20px;
    }

    h1,
    h2 {
        text-shadow: none;
    }

    #loader p {
        font-size: 13px;
    }

    #loader::before,
    #loader::after {
        font-size: 15px;
    }

    #leftcolumn {
        flex: 0 0 auto;
        width: 100%;
        height: auto;
        max-height: 40vh;
        overflow-y: auto;
        border-bottom: 2px solid var(--terminal-color);
        margin-bottom: 20px;
        padding-bottom: 20px;
        padding-right: 0;
        scrollbar-width: thin;
    }

    ::-webkit-scrollbar {
        width: 8px;
    }

    ::-webkit-scrollbar-thumb {
        box-shadow: none;
        border: none;
    }

    ::-webkit-scrollbar-track {
        border-width: 0 1px;
    }

    #rightcolumn {
        flex: 1;
        width: 100%;
        height: auto;
        overflow: hidden;
    }

    #nav_menu {
        font-size: 24px;
    }

    .nav_link {
        padding: 15px 0;
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    h1 {
        font-size: 40px;
    }

    h2 {
        font-size: 28px;
    }

    h3 {
        font-size: 20px;
    }

    #detail_price {
        font-size: 16px;
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    #detail_price th,
    #detail_price td {
        white-space: nowrap;
    }

    .content_box p {
        font-size: 16px;
    }

    .content_section {
        padding: 15px;
    }

    #bottom_logo {
        flex-direction: row;
        gap: 10px;
        padding: 8px 15px;
        align-items: center;
        justify-content: space-between;
    }

    #ascii_logo {
        text-align: right;
        font-size: min(0.4em, 1.1vw);
        flex-shrink: 0;
        white-space: pre;
    }

    #footer_links {
        font-size: 13px;
        gap: 4px;
    }

    .social-icons {
        gap: 30px;
    }

    .social-icon-svg {
        width: 56px;
        height: 56px;
    }

    .social-label {
        font-size: 14px;
    }

    .social-link {
        min-width: 90px;
        padding: 12px;
    }

    .knob-label {
        display: none;
    }
    
    .header-logo {
        font-size: 14px;
    }

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

/* responsive - small screens */

@media (max-width: 380px) {
    #ascii_logo {
        display: none;
    }

    #bottom_logo {
        justify-content: flex-start;
    }
}

/* responsive - mobile landscape */

@media (max-width: 640px) {
    body {
        padding: 8px;
    }

    .terminal-housing {
        height: calc(100vh - 16px);
        height: calc(100dvh - 16px);
    }

    .cat-gallery {
        grid-template-columns: 1fr;
    }

    .cat-photo img {
        height: 180px;
    }

    .lightbox-screen img {
        max-width: 95vw;
        max-height: 55vh;
    }

    .lightbox-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .lightbox-title {
        font-size: 11px;
        padding: 8px 45px 8px 12px;
    }

    #main_panel {
        margin-bottom: 8px;
    }

    #wrapper {
        padding: 0 10px 10px;
    }

    #loader p {
        font-size: 11px;
    }

    #loader::before,
    #loader::after {
        font-size: 12px;
    }

    #nav_menu {
        font-size: 20px;
    }

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 24px;
    }

    #detail_price {
        font-size: 14px;
    }

    #detail_price th,
    #detail_price td {
        padding: 8px 4px;
    }

    .content_box p {
        font-size: 14px;
    }

    .content_box h3 {
        font-size: 18px;
    }

    .content_section {
        padding: 10px;
    }

    #bottom_logo {
        padding: 8px 10px;
    }

    #footer_links {
        font-size: 12px;
        gap: 3px;
    }

    #leftcolumn {
        max-height: 30vh;
    }

    .social-icons {
        gap: 20px;
    }

    .social-icon-svg {
        width: 48px;
        height: 48px;
    }

    .social-label {
        font-size: 12px;
    }

    .social-link {
        min-width: 80px;
        padding: 10px;
    }

    .header-bar {
        padding: 10px 15px;
    }

    .color-indicator {
        display: none;
    }
}

/* responsive - mobile portrait */

@media (max-width: 480px) {
    body {
        font-size: 14px;
        padding: 6px;
    }

    .terminal-housing {
        height: calc(100vh - 12px);
        height: calc(100dvh - 12px);
        border-radius: 12px;
    }

    .terminal-bezel {
        border-radius: 10px;
    }

    .terminal-screen {
        border-radius: 8px;
    }

    #main_panel {
        margin-bottom: 5px;
    }

    #wrapper {
        padding: 0 8px 8px;
    }

    #nav_menu {
        font-size: 18px;
    }

    #loader p {
        font-size: 10px;
    }

    #loader::before,
    #loader::after {
        font-size: 11px;
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 20px;
    }

    #detail_price {
        font-size: 12px;
    }

    #footer_links {
        font-size: 11px;
        gap: 2px;
    }

    #bottom_logo {
        padding: 6px 8px;
    }

    .header-bar {
        padding: 8px 10px;
    }

    .header-logo {
        font-size: 12px;
        letter-spacing: 1px;
    }

    .knob-mount {
        width: 36px;
        height: 36px;
    }

    .knob {
        width: 22px;
        height: 22px;
    }

    .knob::before {
        top: 3px;
        height: 5px;
    }
}