/* ═══════════════════════════════════════════════════════════════════════════
   📜 CYBER GUESTBOOK // HOLOGRAPHIC QUANTUM RELAY & HUD TERMINAL
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── 1. Cyber Telemetry HUD Strip ────────────────────────────────────────── */
.cyber-guestbook-telemetry-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 18px;
    margin-bottom: 24px;
    background: rgba(10, 14, 24, 0.7);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 8px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: #94a3b8;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), inset 0 0 15px rgba(0, 240, 255, 0.03);
    position: relative;
    overflow: hidden;
}

.cyber-guestbook-telemetry-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.08), transparent);
    animation: telemetryScanline 6s ease-in-out infinite;
}

@keyframes telemetryScanline {
    0% { left: -100%; }
    50% { left: 150%; }
    100% { left: 150%; }
}

.cyber-telemetry-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.cyber-telemetry-item .label {
    color: #64748b;
    font-size: 10px;
    letter-spacing: 0.5px;
}

.cyber-telemetry-item .val {
    color: #00f0ff;
    font-weight: 600;
}

.cyber-telemetry-item .val.emerald {
    color: #34d399;
}

/* ── 2. Grid Container Layout ─────────────────────────────────────────── */
.cyber-guestbook-grid {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1.75rem;
    align-items: stretch !important;
    width: 100%;
}

@media (min-width: 1024px) {
    .cyber-guestbook-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 1.75rem;
        align-items: stretch !important;
    }
}

@media (min-width: 1280px) {
    .cyber-guestbook-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 2rem;
        align-items: stretch !important;
    }
}

/* ── 3. Terminal Pod Frames & Chamfered Angles ───────────────────────────── */
.cyber-guestbook-terminal {
    width: 100%;
    min-width: 0;
    height: 520px !important;
    max-height: 520px !important;
    display: flex !important;
    flex-direction: column !important;
    background: radial-gradient(circle at 10% 10%, rgba(16, 22, 38, 0.95), rgba(7, 9, 15, 0.92));
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 0 !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow: hidden;
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.6), 
                inset 0 0 25px rgba(0, 240, 255, 0.03),
                0 0 1px 1px rgba(0, 240, 255, 0.15);
    position: relative;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

@media (max-width: 1023px) {
    .cyber-guestbook-terminal {
        height: auto !important;
        max-height: none !important;
    }
}

.cyber-guestbook-terminal:hover {
    border-color: rgba(0, 240, 255, 0.35);
    box-shadow: 0 24px 56px rgba(0, 0, 0, 0.7), 
                inset 0 0 35px rgba(0, 240, 255, 0.06),
                0 0 25px rgba(0, 240, 255, 0.15);
}

/* Holographic Corner Tech Brackets */
.cyber-guestbook-terminal::before,
.cyber-guestbook-terminal::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    pointer-events: none;
    z-index: 10;
}

.cyber-guestbook-terminal::before {
    top: 0;
    left: 0;
    border-top: 2px solid #00f0ff;
    border-left: 2px solid #00f0ff;
}

.cyber-guestbook-terminal::after {
    bottom: 0;
    right: 0;
    border-bottom: 2px solid #ff0055;
    border-right: 2px solid #ff0055;
}

/* ── 3. 3D Holographic Beacon Pod ────────────────────────────────────────── */
.guestbook-3d-wrapper {
    position: relative;
    width: 100%;
    height: 170px;
    flex-shrink: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 240, 255, 0.08) 0%, rgba(6, 9, 17, 0.8) 75%);
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

#guestbook-3d-beacon {
    width: 100%;
    height: 100%;
    cursor: grab;
}

#guestbook-3d-beacon:active {
    cursor: grabbing;
}

/* 3D HUD Reticle Overlay */
.guestbook-3d-hud-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9.5px;
    color: rgba(0, 240, 255, 0.6);
    letter-spacing: 0.5px;
}

.guestbook-3d-hud-reticle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 130px;
    height: 130px;
    border: 1px dashed rgba(0, 240, 255, 0.2);
    border-radius: 50%;
    pointer-events: none;
    animation: radarSpin 24s linear infinite;
}

@keyframes radarSpin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ── 4. Terminal Topbar ─────────────────────────────────────────────────── */
.guestbook-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 18px;
    background: rgba(12, 16, 26, 0.95);
    border-bottom: 1px solid rgba(0, 240, 255, 0.12);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
}

.guestbook-dots {
    display: flex;
    align-items: center;
    gap: 6px;
}

.guestbook-dot {
    width: 8px;
    height: 8px;
    border-radius: 0;
    box-shadow: 0 0 8px currentColor;
}

.guestbook-dot.red { background: #ef4444; color: rgba(239, 68, 68, 0.4); }
.guestbook-dot.yellow { background: #f59e0b; color: rgba(245, 158, 11, 0.4); }
.guestbook-dot.green { background: #10b981; color: rgba(16, 185, 129, 0.4); }

/* SFX Toggle Button */
.cyber-sfx-toggle {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 9px;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    color: #94a3b8;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10.5px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cyber-sfx-toggle:hover {
    color: #00f0ff;
    border-color: rgba(0, 240, 255, 0.4);
    background: rgba(0, 240, 255, 0.08);
}

.cyber-sfx-toggle.active {
    color: #38bdf8;
    border-color: rgba(56, 189, 248, 0.5);
    background: rgba(56, 189, 248, 0.12);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

/* ── 5. Stream Container & Filter ────────────────────────────────────────── */
.guestbook-filter-bar {
    padding: 8px 16px;
    background: rgba(9, 12, 20, 0.7);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    gap: 8px;
}

.guestbook-search-input {
    flex: 1;
    background: rgba(15, 20, 32, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0;
    padding: 6px 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: #f1f5f9;
    outline: none;
    transition: all 0.2s ease;
}

.guestbook-search-input:focus {
    border-color: rgba(0, 240, 255, 0.4);
    background: rgba(15, 20, 32, 0.9);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
}

.guestbook-stream-container {
    flex: 1 1 0% !important;
    min-height: 0 !important;
    height: 100% !important;
    max-height: 100% !important;
    overflow-y: auto !important;
    overscroll-behavior: contain;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

@media (max-width: 1023px) {
    .guestbook-stream-container {
        height: 380px !important;
        max-height: 380px !important;
    }
}

/* Custom Cyber Scrollbar */
.guestbook-stream-container::-webkit-scrollbar {
    width: 6px;
}
.guestbook-stream-container::-webkit-scrollbar-track {
    background: rgba(10, 14, 24, 0.6);
}
.guestbook-stream-container::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, rgba(0, 240, 255, 0.4), rgba(255, 0, 85, 0.4));
    border-radius: 0;
}
.guestbook-stream-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, rgba(0, 240, 255, 0.7), rgba(255, 0, 85, 0.7));
}

/* ── 6. Transmission Card ────────────────────────────────────────────────── */
.transmission-card {
    background: rgba(15, 19, 30, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-left: 3px solid rgba(0, 240, 255, 0.5);
    border-radius: 0;
    padding: 12px 14px;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    animation: transmissionEntry 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.transmission-card:hover {
    background: rgba(22, 28, 44, 0.9);
    border-color: rgba(0, 240, 255, 0.3);
    border-left-color: #00f0ff;
    transform: translateX(3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 240, 255, 0.1);
}

.transmission-card.new-flash {
    animation: flashScanline 1.4s ease-out;
}

@keyframes transmissionEntry {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes flashScanline {
    0% {
        border-left-color: #00f0ff;
        background: rgba(0, 240, 255, 0.22);
        box-shadow: 0 0 24px rgba(0, 240, 255, 0.5);
    }
    100% {
        border-left-color: rgba(0, 240, 255, 0.5);
        background: rgba(15, 19, 30, 0.75);
        box-shadow: none;
    }
}

.transmission-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
}

.transmission-nick {
    color: #38bdf8;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.transmission-badge {
    font-size: 9px;
    padding: 1px 6px;
    border-radius: 0;
    background: rgba(0, 240, 255, 0.12);
    border: 1px solid rgba(0, 240, 255, 0.3);
    color: #00f0ff;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.transmission-badge.core {
    background: rgba(255, 0, 85, 0.15);
    border-color: rgba(255, 0, 85, 0.4);
    color: #ff3377;
}

.transmission-time {
    color: rgba(148, 163, 184, 0.6);
    font-size: 10px;
}

.transmission-body {
    color: #e2e8f0;
    font-size: 13px;
    line-height: 1.5;
    word-break: break-word;
    font-family: 'Public Sans', sans-serif;
    margin-bottom: 6px;
}

.transmission-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding-top: 4px;
}

.transmission-react-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0;
    padding: 2px 7px;
    color: #94a3b8;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
}

.transmission-react-btn:hover {
    color: #00f0ff;
    border-color: rgba(0, 240, 255, 0.3);
    background: rgba(0, 240, 255, 0.08);
}

.transmission-react-btn.reacted {
    color: #38bdf8;
    border-color: rgba(56, 189, 248, 0.5);
    background: rgba(56, 189, 248, 0.15);
}

/* ── 7. Transmission Form Controls & Quick Chips ────────────────────────── */
.guestbook-form-body {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    padding: 16px 20px 20px;
    min-height: 0;
}

.guestbook-input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
}

.guestbook-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10.5px;
    color: rgba(226, 232, 240, 0.85);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.guestbook-input {
    width: 100%;
    background: rgba(8, 11, 18, 0.9);
    border: 1px solid rgba(0, 240, 255, 0.18);
    border-radius: 0;
    padding: 9px 12px;
    color: #ffffff;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    transition: all 0.2s ease;
    outline: none;
}

.guestbook-input:focus {
    border-color: #00f0ff;
    box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
    background: rgba(10, 14, 24, 0.98);
}

.guestbook-input::placeholder {
    color: rgba(156, 163, 175, 0.45);
}

/* Quick Callsign Chips */
.cyber-chips-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 4px;
}

.cyber-chip-btn {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0;
    padding: 3px 8px;
    color: #94a3b8;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9.5px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cyber-chip-btn:hover {
    color: #00f0ff;
    border-color: rgba(0, 240, 255, 0.4);
    background: rgba(0, 240, 255, 0.08);
}

/* Quick Vibe Message Presets */
.cyber-vibe-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 4px;
}

.cyber-vibe-btn {
    background: rgba(10, 15, 26, 0.8);
    border: 1px dashed rgba(0, 240, 255, 0.2);
    border-radius: 0;
    padding: 3px 8px;
    color: #cbd5e1;
    font-family: 'Public Sans', sans-serif;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cyber-vibe-btn:hover {
    border-style: solid;
    border-color: #00f0ff;
    background: rgba(0, 240, 255, 0.12);
    color: #ffffff;
    transform: translateY(-1px);
}

.guestbook-textarea {
    width: 100%;
    min-height: 80px;
    resize: none;
    background: rgba(8, 11, 18, 0.9);
    border: 1px solid rgba(0, 240, 255, 0.18);
    border-radius: 0;
    padding: 10px 12px;
    color: #ffffff;
    font-size: 12.5px;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
    font-family: 'Public Sans', sans-serif;
}

.guestbook-textarea:focus {
    border-color: #00f0ff;
    box-shadow: 0 0 14px rgba(0, 240, 255, 0.25);
    background: rgba(10, 14, 24, 0.98);
}

.guestbook-textarea::placeholder {
    color: rgba(156, 163, 175, 0.45);
}

/* Character Count Gradient */
#guestbook-char-count {
    transition: color 0.2s ease;
}
#guestbook-char-count.warning {
    color: #f59e0b;
}
#guestbook-char-count.danger {
    color: #ef4444;
}

/* ── 8. Broadcast Button ─────────────────────────────────────────────────── */
.guestbook-broadcast-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 18px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.18), rgba(0, 150, 255, 0.3));
    border: 1px solid rgba(0, 240, 255, 0.5);
    border-radius: 0;
    color: #00f0ff;
    font-family: 'JetBrains Mono', 'Public Sans', monospace, sans-serif;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.25s ease;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.guestbook-broadcast-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.5s ease;
}

.guestbook-broadcast-btn:hover::before {
    left: 100%;
}

.guestbook-broadcast-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.35), rgba(0, 180, 255, 0.55));
    border-color: #00f0ff;
    color: #ffffff;
    box-shadow: 0 0 24px rgba(0, 240, 255, 0.45);
    transform: translateY(-2px);
}

.guestbook-broadcast-btn:active:not(:disabled) {
    transform: translateY(0);
}

.guestbook-broadcast-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.4);
    transform: none;
    box-shadow: none;
}

/* ── 9. Kinetic Danmaku Background Stream ────────────────────────────────── */
.guestbook-danmaku-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.danmaku-card {
    position: absolute;
    left: 0;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(10, 15, 26, 0.48);
    border: 1px solid rgba(0, 240, 255, 0.16);
    border-radius: 0;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    color: rgba(226, 232, 240, 0.75);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    white-space: nowrap;
    user-select: none;
    pointer-events: none;
    will-change: transform;
    animation: danmakuFly linear forwards;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35), inset 0 0 10px rgba(0, 240, 255, 0.04);
}

.danmaku-card.highlight {
    border-color: rgba(0, 240, 255, 0.6);
    background: rgba(0, 240, 255, 0.14);
    color: #00f0ff;
    box-shadow: 0 0 24px rgba(0, 240, 255, 0.35);
}

.danmaku-card .danmaku-nick {
    color: #38bdf8;
    font-weight: 600;
    font-size: 10.5px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.danmaku-card .danmaku-msg {
    color: rgba(241, 245, 249, 0.7);
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
}

@keyframes danmakuFly {
    0% {
        transform: translate3d(100vw, 0, 0) scale(var(--d-scale, 1));
    }
    100% {
        transform: translate3d(-100%, 0, 0) scale(var(--d-scale, 1));
    }
}