@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&display=swap');

body {
    background-color: #05070a;
    color: #d1d5db;
    font-family: 'JetBrains Mono', monospace;
    user-select: none;
    overflow-x: hidden;
}

.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    background-size: 100% 2px, 3px 100%;
    pointer-events: none;
    z-index: 50;
}

.heat-bar-bg {
    background: #111827;
    border: 1px solid #374151;
    position: relative;
    overflow: hidden;
    height: 18px;
    display: flex;
}

.heat-zone-marker {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 10;
}

.heat-bar-fill {
    height: 100%;
    transition: width 0.05s linear;
    position: relative;
    z-index: 5;
}

.zone-tier-1 {
    background: #22c55e;
}

.zone-tier-2 {
    background: #84cc16;
}

.zone-tier-3 {
    background: #eab308;
}

.zone-tier-4 {
    background: #ef4444;
    animation: redline-flicker 0.1s infinite;
}

@keyframes redline-flicker {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.8;
    }

    100% {
        opacity: 1;
    }
}

.building-card {
    background: rgba(31, 41, 55, 0.5);
    border: 1px solid #374151;
    transition: all 0.2s;
}

.building-card:hover:not(.disabled-milestone) {
    border-color: #10b981;
    background: rgba(31, 41, 55, 0.8);
}

.disabled-milestone {
    opacity: 0.4;
    cursor: not-allowed;
    grayscale: 100%;
}

.not-affordable {
    opacity: 0.5;
}

.scram-active {
    border-color: #ef4444 !important;
    animation: border-flicker 0.2s infinite;
}

@keyframes border-flicker {
    0% {
        border-color: #ef4444;
        box-shadow: inset 0 0 10px rgba(239, 68, 68, 0.2);
    }

    100% {
        border-color: #450a0a;
        box-shadow: inset 0 0 20px rgba(239, 68, 68, 0.4);
    }
}

.city-grid-item {
    width: 10px;
    height: 10px;
    border-radius: 1px;
    transition: all 0.4s ease;
}

.city-grid-dim {
    opacity: 0.1 !important;
    box-shadow: none !important;
}

.brownout-flicker {
    animation: flicker 0.5s infinite;
}

.shake-light {
    animation: shake 0.5s infinite;
}

.shake-heavy {
    animation: shake 0.2s infinite;
}

@keyframes shake {
    0% {
        transform: translate(1px, 1px) rotate(0deg);
    }

    10% {
        transform: translate(-1px, -2px) rotate(-1deg);
    }

    20% {
        transform: translate(-3px, 0px) rotate(1deg);
    }

    30% {
        transform: translate(3px, 2px) rotate(0deg);
    }

    40% {
        transform: translate(1px, -1px) rotate(1deg);
    }

    50% {
        transform: translate(-1px, 2px) rotate(-1deg);
    }

    100% {
        transform: translate(1px, 1px) rotate(0deg);
    }
}

select.manager-select {
    background-color: #111827;
    border: 1px solid #4b5563;
    color: #d1d5db;
    font-size: 9px;
    padding: 2px;
    border-radius: 2px;
    width: 100%;
    cursor: pointer;
    outline: none;
    text-transform: uppercase;
    font-weight: bold;
}

.master-ovr-btn {
    transition: all 0.1s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
    touch-action: none;
}

.master-ovr-active {
    background-color: #7f1d1d !important;
    border-color: #ef4444 !important;
    color: #fee2e2 !important;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.6);
    transform: scale(0.98);
    text-shadow: 0 0 5px #fff;
}

.icon-container {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 220px;
    background-color: #0f172a;
    color: #fff;
    text-align: center;
    border: 1px solid #3b82f6;
    padding: 12px;
    border-radius: 6px;
    position: absolute;
    z-index: 100;
    bottom: 125%;
    left: 50%;
    margin-left: -110px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 11px;
    line-height: 1.5;
    pointer-events: none;
    box-shadow: 0 15px 25px -5px rgba(0, 0, 0, 0.7);
    text-transform: none;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

.reactor-card-fixed {
    height: 250px;
}

.upgrade-tray-item {
    background: rgba(22, 28, 41, 0.8);
    border: 1px solid #4b5563;
    padding: 12px;
    border-radius: 6px;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 80px;
    position: relative;
    overflow: hidden;
}

.upgrade-tray-item.affordable {
    border-color: #34d399;
    background: rgba(16, 185, 129, 0.1);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
}

.upgrade-tray-item.affordable:hover {
    background: rgba(16, 185, 129, 0.2);
    border-color: #10b981;
    transform: translateY(-2px);
}

.upgrade-tray-item.locked {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: #374151;
}

.upgrade-tray-item.installed {
    border-color: #3b82f6;
    background: rgba(30, 58, 138, 0.3);
    cursor: default;
    opacity: 0.9;
}

.installed-badge {
    position: absolute;
    top: 4px;
    right: 6px;
    font-size: 7px;
    color: #60a5fa;
    background: rgba(30, 58, 138, 0.5);
    padding: 1px 4px;
    border-radius: 2px;
    font-weight: bold;
    text-transform: uppercase;
    border: 1px solid rgba(96, 165, 250, 0.3);
}

.upgrade-cost-text {
    font-size: 12px;
    font-weight: 700;
    margin-top: 6px;
}

.upgrade-title-text {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.upgrade-desc-text {
    font-size: 10px;
    line-height: 1.3;
    margin-top: 4px;
}

#debug-panel {
    background: rgba(17, 24, 39, 0.98);
    border-top: 2px solid #ef4444;
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem;
}

/* MODAL STYLES */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.modal-box {
    background: #111827;
    border: 1px solid #374151;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    border-radius: 8px;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    cursor: pointer;
    color: #ef4444;
    font-weight: bold;
}

textarea.save-string {
    width: 100%;
    height: 100px;
    background: #000;
    color: #10b981;
    font-family: monospace;
    font-size: 10px;
    padding: 0.5rem;
    border: 1px solid #374151;
    resize: none;
    margin: 1rem 0;
}

.contract-card {
    background: rgba(31, 41, 55, 0.4);
    border: 1px solid #4b5563;
    padding: 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 180px;
}

.contract-card:hover {
    border-color: #eab308;
    background: rgba(31, 41, 55, 0.8);
    transform: translateY(-2px);
}

.contract-d-easy {
    border-top: 2px solid #10b981;
}

.contract-d-med {
    border-top: 2px solid #eab308;
}

.contract-d-hard {
    border-top: 2px solid #ef4444;
}

@keyframes marquee {
    0% {
        transform: translateX(100%);
    }

    100% {
        transform: translateX(-100%);
    }
}

.animate-marquee {
    animation: marquee 10s linear infinite;
}

@keyframes floatUp {
    0% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }

    100% {
        transform: translateY(-40px) scale(1.2);
        opacity: 0;
    }
}

.floating-text {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    font-weight: bold;
    font-family: 'Courier New', monospace;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
    animation: floatUp 4s ease-out forwards;
}

.u-coolant-btn {
    text-shadow: 0 0 5px rgba(59, 130, 246, 0.5);
}

.u-coolant-btn:active {
    transform: scale(0.98);
}

.coolant-flash {
    animation: flash-cyan 0.3s ease-out;
}

@keyframes flash-cyan {
    0% {
        background-color: #22d3ee;
        box-shadow: 0 0 20px #22d3ee;
        border-color: #fff;
    }

    100% {
        background-color: transparent;
        box-shadow: none;
    }
}

/* ========== RESEARCH TREE STYLES ========== */

.research-modal-box {
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
}

.research-tree-wrapper {
    position: relative;
    width: 100%;
    min-height: 500px;
}

.research-lines-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.research-line {
    stroke: #374151;
    stroke-width: 2;
}

.research-line.active {
    stroke: #22d3ee;
    stroke-width: 2;
    filter: drop-shadow(0 0 4px #22d3ee);
}

.research-tree-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(6, 1fr);
    gap: 10px;
    position: relative;
    z-index: 1;
}

.research-node {
    background: rgba(31, 41, 55, 0.8);
    border: 2px solid #374151;
    border-radius: 8px;
    padding: 10px;
    text-align: center;
    cursor: default;
    transition: all 0.2s;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.research-node.locked {
    opacity: 0.4;
    filter: grayscale(80%);
}

.research-node.available {
    border-color: #6366f1;
    cursor: pointer;
}

.research-node.available:hover {
    border-color: #818cf8;
    background: rgba(99, 102, 241, 0.1);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

.research-node.affordable {
    border-color: #22d3ee;
    box-shadow: 0 0 10px rgba(34, 211, 238, 0.2);
}

.research-node.affordable:hover {
    border-color: #67e8f9;
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
}

.research-node.unlocked {
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.1);
}

.research-icon {
    font-size: 18px;
    margin-bottom: 4px;
}

.research-name {
    font-size: 10px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #d1d5db;
}

.research-node.unlocked .research-name {
    color: #10b981;
}

.research-cost {
    font-size: 9px;
    color: #9ca3af;
    margin-top: 4px;
}

.research-node.unlocked .research-cost {
    color: #10b981;
}

/* ========== PRESTIGE MODAL STYLES ========== */

.prestige-modal-box {
    border-color: #ca8a04 !important;
    box-shadow: 0 0 30px rgba(234, 179, 8, 0.2);
}

/* ========== MOBILE RESPONSIVE STYLES ========== */
/* Portrait screens (phones) - 9:16 aspect ratio */

@media (max-width: 768px) {
    body {
        padding: 0.5rem;
        font-size: 14px;
    }

    /* Header adjustments */
    header {
        padding: 0.75rem !important;
        margin-bottom: 1rem !important;
    }

    header h2 {
        font-size: 1.25rem !important;
    }

    header p {
        font-size: 7px !important;
    }

    /* Action buttons in header - move to left on mobile to avoid help button */
    header .absolute.top-2.right-2 {
        top: 0.5rem;
        right: 2.5rem;
    }

    header .absolute.top-2.right-2 button {
        padding: 0.25rem 0.5rem;
        font-size: 9px;
    }

    /* Help button - smaller on mobile */
    a[title="Operator Handbook"] {
        width: 1.5rem;
        height: 1.5rem;
        font-size: 10px;
        top: 0.5rem;
        right: 0.5rem;
    }

    /* Main grid - Stack columns on mobile */
    main.grid {
        grid-template-columns: 1fr !important;
    }

    main .lg\\:col-span-4,
    main .lg\\:col-span-8 {
        grid-column: span 1 !important;
    }

    /* Building cards */
    .building-card {
        padding: 0.5rem;
    }

    .building-card .icon-container {
        width: 1.5rem;
        height: 1.5rem;
    }

    .building-card .icon-container svg {
        width: 1rem;
        height: 1rem;
    }

    /* Reactor cards */
    .reactor-card-fixed {
        min-width: auto !important;
        max-width: 100% !important;
    }

    #reactor-grid {
        grid-template-columns: 1fr !important;
    }

    /* Heat bar */
    .heat-bar-bg {
        height: 14px;
    }

    /* City grid - smaller tiles */
    #city-grid {
        max-height: 100px;
        gap: 1px !important;
    }

    .city-grid-item {
        width: 8px !important;
        height: 8px !important;
    }

    /* Sparkline container */
    .w-24.h-6 {
        width: 3rem;
        height: 1rem;
    }

    /* Modal adjustments */
    .modal-box {
        width: 95% !important;
        max-width: none !important;
        padding: 1rem;
        max-height: 85vh;
        overflow-y: auto;
    }

    .research-modal-box {
        width: 100% !important;
        max-width: 100% !important;
        height: 100vh !important;
        max-height: 100vh !important;
        border-radius: 0;
        margin: 0;
    }

    /* Research tree on mobile */
    .research-tree-grid {
        grid-template-columns: repeat(3, minmax(80px, 1fr));
        gap: 8px;
        padding: 4px;
    }

    .research-node {
        min-height: 70px;
        padding: 8px 4px;
    }

    .research-icon {
        font-size: 16px;
    }

    .research-name {
        font-size: 9px;
        line-height: 1.2;
    }

    .research-cost {
        font-size: 8px;
    }

    /* Bottom navigation */
    .fixed.bottom-0 {
        padding: 0.5rem;
    }

    .fixed.bottom-0 button {
        padding: 0.375rem 0.5rem;
        font-size: 10px;
    }

    /* Debug panel */
    #debug-panel {
        font-size: 10px;
    }

    #debug-panel button {
        padding: 0.25rem 0.5rem;
        font-size: 9px;
    }

    /* Grid Storage Monitor */
    #grid-storage-monitor {
        padding: 0.5rem;
    }

    /* Help button adjustment */
    a[title="Operator Handbook"] {
        width: 1.5rem;
        height: 1.5rem;
        font-size: 10px;
    }
}

/* Extra small phones (under 450px) */
@media (max-width: 450px) {
    body {
        padding: 0.25rem;
    }

    header h2 {
        font-size: 1rem !important;
    }

    /* Make research tree scrollable horizontally on very small screens */
    .research-tree-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 10px;
    }

    .research-tree-grid {
        min-width: 400px;
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }

    .research-node {
        min-height: 80px;
        padding: 10px 6px;
    }

    .research-name {
        font-size: 10px;
    }

    .research-cost {
        font-size: 9px;
    }
}

/* Landscape tablets and larger phones */
@media (min-width: 769px) and (max-width: 1024px) {
    #reactor-grid {
        grid-template-columns: 1fr 1fr;
    }
}
/* Research Modal Redesign */

/* Hide old grid styles if any */
#research-tree-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 1rem;
    overflow-y: auto;
    position: relative; /* Context for SVG lines if we re-add them */
}

.research-section {
    border: 1px solid #374151;
    background: #111827;
    border-radius: 0.5rem;
    padding: 1rem;
}

.research-section-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: #ffd700; /* Gold/Yellow for visibility */
    margin-bottom: 1rem;
    border-bottom: 1px solid #374151;
    padding-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.research-section-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: flex-start;
}

.research-node {
    width: 100px;
    height: 100px;
    background: #1f2937;
    border: 2px solid #374151;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 4px;
}

.research-node.locked {
    opacity: 0.6;
    cursor: not-allowed;
}

.research-node.available {
    border-color: #f59e0b;
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.2);
}

.research-node.affordable {
    border-color: #10b981; /* Green */
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
    animation: pulse 2s infinite;
}

.research-node.unlocked {
    border-color: #22d3ee; /* Cyan */
    background: #0f172a;
    box-shadow: 0 0 15px rgba(34, 211, 238, 0.3);
}

.research-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.research-name {
    font-size: 10px;
    font-weight: bold;
    line-height: 1.1;
    margin-bottom: 2px;
}

.research-cost {
    font-size: 9px;
    color: #9ca3af;
}

.research-node:hover {
    transform: translateY(-2px);
    z-index: 20;
}

/* Tooltip behavior is browser native (title attribute) */

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* SVG Overlay for Lines - Currently unused but kept for structure */
#research-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}