/* ===========================================
   SIGNAL // Anna Dymchenko
   A retro-futuristic space communication theme
   =========================================== */

:root {
    /* Deep space colors */
    --bg-primary: #0a0e12;
    --bg-secondary: #111920;
    --bg-tertiary: #1a252e;

    /* Terminal/Signal colors */
    --signal-green: #9AFFC7;
    --signal-green-dim: rgba(154, 255, 199, 0.6);
    --signal-amber: #FFB800;
    --signal-amber-dim: rgba(255, 184, 0, 0.6);
    --signal-red: #fa9898;
    --signal-blue: #7dd3fc;

    /* Text colors */
    --text-primary: #E0FFE8;
    --text-secondary: #8ba4a8;
    --text-dim: #4a5f66;

    /* Phosphor glow */
    --glow-green: 0 0 10px rgba(154, 255, 199, 0.5), 0 0 20px rgba(154, 255, 199, 0.3);
    --glow-amber: 0 0 10px rgba(255, 184, 0, 0.5), 0 0 20px rgba(255, 184, 0, 0.3);
    --glow-white: 0 0 20px rgba(255, 255, 255, 0.9), 0 0 40px rgba(200, 240, 255, 0.7);
}

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

html {
    font-size: 16px;
}

body {
    font-family: 'JetBrains Mono', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Starfield background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(1px 1px at 20px 30px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 40px 70px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 50px 160px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 160px 120px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 200px 200px, rgba(154,255,199,0.4), transparent),
        radial-gradient(1px 1px at 220px 50px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 280px 90px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 320px 140px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 360px 200px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 400px 60px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 450px 180px, rgba(255,184,0,0.4), transparent),
        radial-gradient(1px 1px at 500px 100px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 550px 220px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 600px 30px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 650px 150px, rgba(255,255,255,0.2), transparent),
        radial-gradient(1px 1px at 700px 80px, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 750px 200px, rgba(154,255,199,0.4), transparent),
        radial-gradient(1px 1px at 800px 120px, rgba(255,255,255,0.2), transparent);
    background-repeat: repeat;
    background-size: 800px 250px;
    pointer-events: none;
    z-index: -1;
    animation: twinkle 8s ease-in-out infinite;
}

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

/* CRT Scanlines Effect */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.1) 2px,
        rgba(0, 0, 0, 0.1) 4px
    );
}

.scanlines::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at center,
        transparent 0%,
        rgba(0, 0, 0, 0.3) 100%
    );
}

/* ===========================================
   HEADER / SIGNAL BAR
   =========================================== */
.signal-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 100;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.signal-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--signal-green);
    border-radius: 50%;
    box-shadow: var(--glow-green);
    animation: pulse 2s ease-in-out infinite;
}

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

.status-text {
    color: var(--signal-green);
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    padding: 4px 8px;
}

.nav-link:hover {
    color: var(--signal-green);
    text-shadow: var(--glow-green);
}

.nav-link.active {
    color: var(--signal-amber);
    text-shadow: var(--glow-amber);
}

.signal-freq {
    color: var(--text-dim);
}

.freq-value {
    color: var(--signal-blue);
    margin-left: 4px;
}

/* ===========================================
   MAIN CONTAINER
   =========================================== */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 24px 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: calc(100vh - 48px);
}

/* ===========================================
   ASCII ART CONTAINER
   =========================================== */
.ascii-container {
    margin-bottom: 48px;
    position: relative;
}

.ascii-label {
    color: var(--text-dim);
    font-size: 11px;
    letter-spacing: 2px;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.ascii {
    font-family: 'JetBrains Mono', monospace;
    white-space: pre;
    line-height: 1.1;
    font-size: 12px;
    letter-spacing: 2px;
}

/* ASCII Shimmer Classes */
.ascii .bright {
    color: #ffffff;
    text-shadow: var(--glow-white);
    filter: blur(0.3px);
}

.ascii .mint {
    color: var(--signal-green);
    text-shadow: var(--glow-green);
    filter: blur(0.2px);
}

.ascii .blush {
    color: var(--signal-red);
    text-shadow: 0 0 8px rgba(250, 152, 152, 0.5);
    filter: blur(0.15px);
}

.ascii .banana {
    color: var(--signal-amber);
    text-shadow: var(--glow-amber);
    filter: blur(0.15px);
}

/* ===========================================
   CONTENT BLOCKS
   =========================================== */
.content-block {
    text-align: center;
    max-width: 600px;
}

.intro {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.prompt {
    color: var(--signal-green);
}

.highlight {
    color: var(--signal-amber);
    font-weight: 500;
}

.highlight-secondary {
    color: var(--signal-blue);
}

.description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.description p {
    margin-bottom: 12px;
}

.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.9em;
}


/* ===========================================
   CTA / LINKS
   =========================================== */
.cta-block {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.cta-link {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    padding: 8px 16px;
    display: inline-block;
}

.cta-link:hover {
    color: var(--signal-green);
    text-shadow: var(--glow-green);
    padding-left: 24px;
}

/* ===========================================
   FOOTER
   =========================================== */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 32px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 1px;
    z-index: 100;
}

.coordinates span {
    margin-right: 16px;
}

/* ===========================================
   PAGE-SPECIFIC: ABOUT
   =========================================== */
.page-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--signal-amber);
    text-shadow: var(--glow-amber);
}

.page-subtitle {
    color: var(--text-dim);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 48px;
}

.terminal-block {
    background: var(--bg-secondary);
    border: 1px solid var(--bg-tertiary);
    border-radius: 4px;
    padding: 24px;
    text-align: left;
    margin-bottom: 24px;
    max-width: 700px;
    width: 100%;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--bg-tertiary);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27ca40; }

.terminal-title {
    color: var(--text-dim);
    font-size: 12px;
    margin-left: auto;
}

.terminal-content {
    font-size: 14px;
    line-height: 1.8;
}

.terminal-content .line {
    margin-bottom: 8px;
}

.terminal-content .comment {
    color: var(--text-dim);
}

.terminal-content .key {
    color: var(--signal-blue);
}

.terminal-content .value {
    color: var(--text-primary);
}

.terminal-content .string {
    color: var(--signal-green);
}

/* ===========================================
   PAGE-SPECIFIC: PROJECTS
   =========================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 900px;
    width: 100%;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--bg-tertiary);
    border-radius: 4px;
    padding: 24px;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.project-card:hover {
    border-color: var(--signal-green-dim);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.project-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.project-status .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.project-status.active .dot {
    background: var(--signal-green);
    box-shadow: var(--glow-green);
}

.project-status.archived .dot {
    background: var(--text-dim);
}

.project-status.active span {
    color: var(--signal-green);
}

.project-status.archived span {
    color: var(--text-dim);
}

.project-title {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.project-desc {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 16px;
}

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

.tech-tag {
    font-size: 10px;
    padding: 4px 8px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===========================================
   PAGE-SPECIFIC: TRANSMISSIONS
   =========================================== */
.transmissions-list {
    max-width: 700px;
    width: 100%;
}

.transmission {
    background: var(--bg-secondary);
    border: 1px solid var(--bg-tertiary);
    border-radius: 4px;
    padding: 24px;
    margin-bottom: 24px;
    text-align: left;
}

.transmission-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.transmission-id {
    font-size: 11px;
    color: var(--signal-amber);
    letter-spacing: 1px;
}

.transmission-date {
    font-size: 11px;
    color: var(--text-dim);
}

.transmission-title {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.transmission-preview {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}

.transmission-link {
    color: var(--signal-green);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.2s ease;
}

.transmission-link:hover {
    text-shadow: var(--glow-green);
}

/* Signal strength indicator */
.signal-strength {
    display: flex;
    gap: 2px;
    align-items: flex-end;
    height: 16px;
}

.signal-bar-unit {
    width: 3px;
    background: var(--signal-green);
    border-radius: 1px;
}

.signal-bar-unit:nth-child(1) { height: 4px; }
.signal-bar-unit:nth-child(2) { height: 7px; }
.signal-bar-unit:nth-child(3) { height: 10px; }
.signal-bar-unit:nth-child(4) { height: 13px; }
.signal-bar-unit:nth-child(5) { height: 16px; }

.signal-bar-unit.inactive {
    background: var(--bg-tertiary);
}

/* ===========================================
   UTILITIES
   =========================================== */
.blink {
    animation: blink 1s step-end infinite;
}

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

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

/* ===========================================
   RESPONSIVE
   =========================================== */
@media (max-width: 768px) {
    .signal-bar {
        flex-direction: column;
        height: auto;
        padding: 12px;
        gap: 12px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    .signal-freq {
        display: none;
    }

    .container {
        padding-top: 120px;
    }

    .ascii {
        font-size: 8px;
        letter-spacing: 1px;
    }

    .intro {
        font-size: 1.2rem;
    }

    .footer {
        flex-direction: column;
        height: auto;
        padding: 8px;
        gap: 4px;
    }
}

/* ===========================================
   SCROLLBAR
   =========================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--signal-green-dim);
}