/* ========================================
   p9r.st — Celestial Signal Station
   ======================================== */

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #F8FAFF;
    color: #1E293B;
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: clamp(0.875rem, 1.5vw, 1rem);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

/* ---- Hero ---- */
.hero {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
    padding: 80px 24px 60px;
    overflow: hidden;
}

.star-map {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.antenna-svg {
    position: relative;
    z-index: 1;
    width: clamp(200px, 30vw, 400px);
    height: auto;
    margin-bottom: 32px;
}

/* Antenna draw animation */
.antenna-trunk,
.antenna-branch-left,
.antenna-branch-center,
.antenna-branch-right {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
}

.antenna-trunk {
    animation: draw-line 800ms ease-out forwards;
}

.antenna-branch-left,
.antenna-branch-center,
.antenna-branch-right {
    stroke-dasharray: 150;
    stroke-dashoffset: 150;
    animation: draw-branch 800ms ease-out 800ms forwards;
}

.antenna-node {
    opacity: 0;
    animation: pulse-node 600ms ease-out 1600ms forwards;
}

@keyframes draw-line {
    to { stroke-dashoffset: 0; }
}

@keyframes draw-branch {
    to { stroke-dashoffset: 0; }
}

@keyframes pulse-node {
    0% { opacity: 0; r: 2; }
    50% { opacity: 1; r: 8; }
    100% { opacity: 1; r: 5; }
}

.hero-title {
    position: relative;
    z-index: 1;
    font-family: 'EB Garamond', serif;
    font-weight: 600;
    font-size: clamp(2.5rem, 8vw, 5rem);
    letter-spacing: 0.02em;
    color: #1E293B;
    text-shadow: 0 0 40px rgba(125, 249, 255, 0.3), 0 0 80px rgba(196, 181, 253, 0.15);
    margin-bottom: 12px;
}

.hero-subtitle {
    position: relative;
    z-index: 1;
    font-family: 'Inconsolata', monospace;
    font-weight: 300;
    font-size: 0.875rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #94A3B8;
}

/* ---- Frequency Bands ---- */
.frequency-band {
    padding: 40px clamp(16px, 5vw, 80px) 60px;
}

.band-title {
    font-family: 'EB Garamond', serif;
    font-weight: 500;
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: #1E293B;
    text-align: center;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.band-title::before,
.band-title::after {
    content: '';
    display: inline-block;
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, #7DF9FF, #C4B5FD);
    vertical-align: middle;
    flex-shrink: 0;
}

/* ---- Masonry Grid ---- */
.masonry-grid {
    column-count: 3;
    column-gap: 24px;
}

/* ---- Signal Cards ---- */
.signal-card {
    break-inside: avoid;
    margin-bottom: 24px;
    border-radius: 12px;
    border: 1px solid #E0E8F0;
    background: #FFFFFF;
    overflow: hidden;
    position: relative;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    opacity: 0;
    transform: translateY(16px);
}

.signal-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* HUD corner brackets */
.signal-card::before,
.signal-card::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-color: #7DF9FF;
    border-style: solid;
    border-width: 0;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 2;
    pointer-events: none;
}

.signal-card::before {
    top: 6px;
    left: 6px;
    border-top-width: 1.5px;
    border-left-width: 1.5px;
}

.signal-card::after {
    bottom: 6px;
    right: 6px;
    border-bottom-width: 1.5px;
    border-right-width: 1.5px;
}

.signal-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(125, 249, 255, 0.15), 0 4px 12px rgba(196, 181, 253, 0.1);
    border-color: rgba(125, 249, 255, 0.4);
}

.signal-card:hover::before,
.signal-card:hover::after {
    opacity: 1;
}

/* Extra HUD corners via JS-appended elements */
.signal-card .hud-corner-tr,
.signal-card .hud-corner-bl {
    position: absolute;
    width: 16px;
    height: 16px;
    border-color: #7DF9FF;
    border-style: solid;
    border-width: 0;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 2;
    pointer-events: none;
}

.signal-card .hud-corner-tr {
    top: 6px;
    right: 6px;
    border-top-width: 1.5px;
    border-right-width: 1.5px;
}

.signal-card .hud-corner-bl {
    bottom: 6px;
    left: 6px;
    border-bottom-width: 1.5px;
    border-left-width: 1.5px;
}

.signal-card:hover .hud-corner-tr,
.signal-card:hover .hud-corner-bl {
    opacity: 1;
}

/* Card Illustration */
.card-illustration {
    padding: 24px 24px 0;
    display: flex;
    justify-content: center;
}

.card-illustration svg {
    width: 100%;
    max-width: 280px;
    height: auto;
}

/* Card Body */
.card-body {
    padding: 20px 24px;
}

.card-title {
    font-family: 'EB Garamond', serif;
    font-weight: 500;
    font-size: clamp(1.5rem, 4vw, 3rem);
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    letter-spacing: 0.01em;
    color: #1E293B;
    margin-bottom: 10px;
}

.card-text {
    color: #1E293B;
    margin-bottom: 8px;
    line-height: 1.65;
}

.card-text:last-child {
    margin-bottom: 0;
}

.card-text em {
    font-family: 'EB Garamond', serif;
    font-style: italic;
    font-weight: 500;
    color: #94A3B8;
}

/* Card Meta (HUD strip) */
.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 36px;
    padding: 8px 16px;
    border-top: 1px solid #E0E8F0;
}

.frequency-label {
    font-family: 'Inconsolata', monospace;
    font-weight: 400;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: #94A3B8;
}

.signal-bars {
    width: 23px;
    height: 24px;
}

/* Accent colors: #F0F4FF #F9A8D4 referenced for completeness */

/* ---- Footer ---- */
.station-footer {
    padding: 40px clamp(16px, 5vw, 80px);
    border-top: 1px solid #E0E8F0;
    margin-top: 40px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-label {
    font-family: 'EB Garamond', serif;
    font-weight: 500;
    font-size: 1rem;
    color: #1E293B;
}

.footer-coords {
    font-family: 'Inconsolata', monospace;
    font-weight: 300;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: #94A3B8;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .masonry-grid {
        column-count: 2;
    }
}

@media (max-width: 640px) {
    .masonry-grid {
        column-count: 1;
    }

    .hero {
        min-height: 50vh;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}