:root {
    --space-bg: #030712;
    --card-bg: rgba(15, 23, 42, 0.85);
    --border-color: #38bdf8;
    --accent-glow: #0284c7;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --danger: #ef4444;
    --success: #22c55e;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Rajdhani', sans-serif;
}

body {
    background-color: var(--space-bg);
    color: var(--text-main);
    overflow: hidden;
    height: 100vh;
}

.screen {
    display: none;
    width: 100vw;
    height: 100vh;
    position: absolute;
    top: 0;
    left: 0;
}

.screen.active {
    display: flex;
}


/* ==========================================
   HOME SCREEN
========================================== */

#home-screen {
    justify-content: center;
    align-items: center;

    background: radial-gradient(
        circle at center,
        #0f172a 0%,
        #020617 100%
    );

    position: relative;
    overflow: hidden;
}

#home-screen.hidden {
    display: none !important;
}


/* ==========================================
   MAIN MENU CARD
========================================== */

.home-card {
    background: var(--card-bg);

    border: 2px solid var(--border-color);

    box-shadow:
        0 0 30px rgba(56, 189, 248, 0.3),
        0 0 80px rgba(2, 132, 199, 0.12);

    padding: 40px;

    border-radius: 16px;

    text-align: center;

    max-width: 720px;
    width: 90%;

    z-index: 10;
    position: relative;

    backdrop-filter: blur(10px);
}

.glow-title {
    font-family: 'Orbitron', sans-serif;

    font-size: clamp(2rem, 4vw, 3.2rem);

    font-weight: 900;

    color: var(--text-main);

    text-shadow:
        0 0 15px var(--border-color),
        0 0 35px rgba(56, 189, 248, 0.5);

    margin-bottom: 8px;
}

.subtitle {
    font-size: 1.3rem;

    color: var(--border-color);

    margin-bottom: 28px;

    font-weight: 700;

    letter-spacing: 3px;
}

.home-stats {
    font-size: 1.1rem;

    color: var(--text-muted);

    margin-bottom: 25px;
}

#home-highscore {
    color: var(--success);
    font-weight: 700;
}

.game-desc {
    font-size: 1.15rem;

    color: var(--text-muted);

    line-height: 1.55;

    margin: 0 auto 30px;

    max-width: 620px;
}


/* ==========================================
   BUTTONS
========================================== */

.space-btn {
    background: linear-gradient(
        135deg,
        #0284c7 0%,
        #0369a1 100%
    );

    border: 1px solid var(--border-color);

    color: white;

    font-family: 'Orbitron', sans-serif;

    font-size: 1rem;

    font-weight: 700;

    padding: 14px 30px;

    border-radius: 8px;

    cursor: pointer;

    transition: all 0.2s ease;

    box-shadow:
        0 0 15px rgba(56, 189, 248, 0.4);

    width: 100%;

    margin-bottom: 12px;
}

.space-btn:hover {
    background: linear-gradient(
        135deg,
        #0369a1 0%,
        #075985 100%
    );

    box-shadow:
        0 0 25px rgba(56, 189, 248, 0.8);

    transform: translateY(-2px);
}

.space-btn:active {
    transform: translateY(0);
}

.secondary-btn {
    background: rgba(15, 23, 42, 0.9);

    border: 1px solid var(--text-muted);

    color: var(--text-muted);

    box-shadow: none;

    margin-bottom: 0;
}

.secondary-btn:hover {
    border-color: var(--border-color);
    color: var(--text-main);
}

.secondary-btn.active-hard {
    border-color: var(--danger);

    color: var(--danger);

    background: rgba(239, 68, 68, 0.1);

    box-shadow:
        0 0 15px rgba(239, 68, 68, 0.4);
}


/* ==========================================
   GAME SCREEN
========================================== */

.game-container {
    display: flex;
    flex-direction: column;

    width: 100vw;
    height: 100vh;
}

.hud {
    height: 70px;

    background: var(--card-bg);

    border-bottom: 2px solid var(--border-color);

    display: flex;

    justify-content: space-between;
    align-items: center;

    padding: 0 30px;

    z-index: 5;
}

.hud-item {
    font-family: 'Orbitron', sans-serif;

    font-size: 1.1rem;

    font-weight: 700;
}

.timer-display {
    color: var(--border-color);
}

.timer-warning {
    color: var(--danger) !important;

    animation: pulse-warn 0.5s infinite alternate;
}

@keyframes pulse-warn {
    from {
        opacity: 1;
    }

    to {
        opacity: 0.4;
    }
}

.prompt-box {
    background: rgba(2, 6, 23, 0.9);

    border: 1px solid var(--border-color);

    padding: 10px 20px;

    border-radius: 8px;

    font-size: 1.1rem;

    font-weight: 600;

    text-align: center;

    max-width: 600px;

    box-shadow:
        inset 0 0 10px rgba(56, 189, 248, 0.2);
}

.workspace {
    display: flex;

    flex: 1;

    position: relative;

    overflow: hidden;
}

#map {
    flex: 1;

    height: 100%;

    min-height: 400px;

    background: #020617;

    position: relative;

    z-index: 1;
}


/* ==========================================
   SIDEBARS
========================================== */

.space-sidebar,
.right-sidebar {
    width: 260px;

    background: var(--card-bg);

    border-right: 2px solid var(--border-color);

    display: flex;

    flex-direction: column;

    padding: 20px;

    z-index: 5;

    position: relative;

    overflow: hidden;
}

.right-sidebar {
    border-right: none;

    border-left: 2px solid var(--border-color);
}

.space-sidebar h3,
.right-sidebar h3 {
    font-family: 'Orbitron', sans-serif;

    font-size: 1.1rem;

    margin-bottom: 15px;

    text-align: center;

    color: var(--border-color);
}


/* ==========================================
   ORBITAL ASCENT
========================================== */

.space-track {
    position: relative;

    flex: 1;

    display: flex;

    flex-direction: column;

    justify-content: space-between;

    padding-left: 20px;
}

.space-line {
    position: absolute;

    left: 27px;

    top: 10px;

    bottom: 10px;

    width: 3px;

    background: #1e293b;
}

.rocket-marker {
    position: absolute;

    left: 13px;

    font-size: 1.5rem;

    transition: top 0.4s ease;

    z-index: 3;
}

.milestone {
    display: flex;

    align-items: center;

    font-size: 0.95rem;

    color: var(--text-muted);

    position: relative;

    z-index: 2;
}

.milestone .dot {
    width: 10px;
    height: 10px;

    background: #1e293b;

    border: 2px solid var(--text-muted);

    border-radius: 50%;

    margin-right: 15px;

    position: relative;

    left: -13px;

    transition: all 0.3s ease;
}

.milestone.achieved {
    color: var(--text-main);

    font-weight: 700;
}

.milestone.achieved .dot {
    background: var(--border-color);

    border-color: var(--border-color);

    box-shadow: 0 0 10px var(--border-color);
}

.milestone .pts {
    margin-left: auto;

    font-size: 0.8rem;

    color: var(--text-muted);
}


/* ==========================================
   MISSION LOG
========================================== */

.rewards-table {
    display: flex;

    flex-direction: column;

    gap: 10px;
}

.reward-row {
    background: rgba(2, 6, 23, 0.6);

    border: 1px solid #1e293b;

    border-radius: 6px;

    padding: 10px;
}

.reward-name {
    font-size: 0.9rem;

    font-weight: 700;

    margin-bottom: 4px;
}

.reward-desc {
    display: flex;

    justify-content: space-between;

    font-size: 0.8rem;

    color: var(--text-muted);
}

.reward-desc .pts {
    color: var(--border-color);

    font-weight: 700;
}


/* ==========================================
   FEEDBACK MODAL
========================================== */

.modal {
    position: fixed;

    top: 0;
    left: 0;

    width: 100vw;
    height: 100vh;

    background: rgba(2, 6, 23, 0.85);

    backdrop-filter: blur(5px);

    display: flex;

    justify-content: center;

    align-items: center;

    z-index: 9999;
}

.modal.hidden {
    display: none !important;

    pointer-events: none;
}

.modal-content {
    background: var(--card-bg);

    border: 2px solid var(--border-color);

    box-shadow:
        0 0 40px rgba(56, 189, 248, 0.4);

    padding: 40px;

    border-radius: 16px;

    text-align: center;

    max-width: 450px;

    width: 90%;

    z-index: 10000;
}

.modal-content h2 {
    font-family: 'Orbitron', sans-serif;

    font-size: 1.8rem;

    margin-bottom: 15px;

    color: var(--text-main);
}

.modal-content p {
    font-size: 1.1rem;

    color: var(--text-muted);

    margin-bottom: 25px;

    line-height: 1.5;
}


/* ==========================================
   STARFIELD
========================================== */

.space-starfield {
    position: absolute;

    top: 0;
    left: 0;

    width: 100%;
    height: 100%;

    pointer-events: none;

    z-index: 0;
}

.star {
    position: absolute;

    background: #ffffff;

    border-radius: 50%;

    animation: twinkle var(--duration, 3s) infinite ease-in-out;
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0.2;

        transform: scale(0.8);
    }

    50% {
        opacity: 1;

        transform: scale(1.2);
    }
}

.star.s1 {
    top: 10%;
    left: 15%;
    width: 2px;
    height: 2px;
    --duration: 2.5s;
}

.star.s2 {
    top: 20%;
    left: 80%;
    width: 3px;
    height: 3px;
    --duration: 4s;
}

.star.s3 {
    top: 75%;
    left: 10%;
    width: 2px;
    height: 2px;
    --duration: 3s;
}

.star.s4 {
    top: 60%;
    left: 85%;
    width: 3px;
    height: 3px;
    --duration: 3.5s;
}

.star.s5 {
    top: 35%;
    left: 45%;
    width: 1px;
    height: 1px;
    --duration: 2s;
}

.star.s6 {
    top: 85%;
    left: 50%;
    width: 2px;
    height: 2px;
    --duration: 4.5s;
}

.star.s7 {
    top: 15%;
    left: 40%;
    width: 2px;
    height: 2px;
    --duration: 3.2s;
}

.star.s8 {
    top: 50%;
    left: 20%;
    width: 3px;
    height: 3px;
    --duration: 2.8s;
}

.star.s9 {
    top: 30%;
    left: 90%;
    width: 2px;
    height: 2px;
    --duration: 3.8s;
}

.star.s10 {
    top: 90%;
    left: 80%;
    width: 1px;
    height: 1px;
    --duration: 2.2s;
}

.star.s11 {
    top: 5%;
    left: 65%;
    width: 2px;
    height: 2px;
    --duration: 4.1s;
}

.star.s12 {
    top: 65%;
    left: 35%;
    width: 2px;
    height: 2px;
    --duration: 3.3s;
}

.star.s13 {
    top: 45%;
    left: 75%;
    width: 3px;
    height: 3px;
    --duration: 2.9s;
}

.star.s14 {
    top: 80%;
    left: 25%;
    width: 2px;
    height: 2px;
    --duration: 3.6s;
}

.star.s15 {
    top: 25%;
    left: 25%;
    width: 2px;
    height: 2px;
    --duration: 2.7s;
}

.stars-overlay {
    position: absolute;

    top: 0;
    left: 0;

    width: 100%;
    height: 100%;

    background-image: radial-gradient(
        white 1px,
        transparent 0
    );

    background-size: 30px 30px;

    opacity: 0.05;

    pointer-events: none;

    z-index: 0;
}


/* ==========================================
   MAP STATE LABELS
========================================== */

.usa-state-label-icon {
    background: transparent !important;

    border: 0 !important;

    pointer-events: none !important;
}

.usa-state-label {
    display: flex;

    align-items: center;

    justify-content: center;

    width: 28px;
    height: 20px;

    color: #f8fafc;

    font-family: 'Orbitron', sans-serif;

    font-size: 11px;

    font-weight: 800;

    line-height: 1;

    letter-spacing: 0.2px;

    text-shadow:
        -1px -1px 2px #020617,
         1px -1px 2px #020617,
        -1px  1px 2px #020617,
         1px  1px 2px #020617,
         0 0 5px rgba(2, 6, 23, 0.95);

    white-space: nowrap;

    pointer-events: none;

    user-select: none;
}

.usa-callout-label {
    text-align: left;

    justify-content: flex-start;

    padding-left: 4px;
}

.usa-island-circle {
    transition: all 0.2s ease;
}

.leaflet-marker-icon.usa-state-label-icon {
    pointer-events: none !important;
}


/* ==========================================
   LUNAR ARTWORK
========================================== */

.lunar-scene {
    position: absolute;

    inset: 0;

    width: 100%;
    height: 100%;

    overflow: hidden;

    pointer-events: none;

    z-index: 2;
}

.lunar-art {
    display: block;

    width: 100%;
    height: 100%;

    overflow: visible;
}


/* ==========================================
   SUN ANIMATION
========================================== */

.sun-object {
    transform-origin: 210px 230px;

    animation: sunPulse 8s ease-in-out infinite;
}

@keyframes sunPulse {
    0%, 100% {
        opacity: 0.9;
    }

    50% {
        opacity: 1;
    }
}


/* ==========================================
   EARTH ANIMATION
========================================== */

.earth-object {
    transform-origin: 1350px 240px;

    animation: earthFloat 8s ease-in-out infinite;
}

@keyframes earthFloat {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-9px);
    }
}


/* ==========================================
   AMERICAN FLAG ANIMATION
========================================== */

.flag-object {
    transform-origin: 300px 435px;

    animation: flagWave 4s ease-in-out infinite;
}

@keyframes flagWave {
    0%, 100% {
        transform: skewY(0deg);
    }

    50% {
        transform: skewY(-1deg);
    }
}


/* ==========================================
   ROCKET ANIMATION
========================================== */

.rocket-object {
    transform-origin: 1290px 650px;

    animation: rocketHover 3s ease-in-out infinite;
}

@keyframes rocketHover {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}


/* ==========================================
   RESPONSIVE DESIGN
========================================== */

@media (max-width: 1100px) {

    .home-card {
        max-width: 620px;

        padding: 32px;
    }

    .game-desc {
        font-size: 1.05rem;
    }

    .lunar-art {
        width: 115%;

        max-width: none;

        margin-left: -7.5%;
    }

}


@media (max-width: 900px) {

    .lunar-art {
        width: 135%;

        max-width: none;

        margin-left: -17.5%;
    }

    .home-card {
        max-width: 550px;

        width: 85%;

        padding: 28px;
    }

    .subtitle {
        font-size: 1.1rem;
    }

    .game-desc {
        font-size: 1rem;
    }

}


@media (max-width: 600px) {

    .lunar-art {
        width: 170%;

        max-width: none;

        margin-left: -35%;
    }

    .home-card {
        padding: 22px;

        max-width: 420px;

        width: 90%;
    }

    .glow-title {
        font-size: 1.8rem;
    }

    .subtitle {
        font-size: 0.95rem;

        letter-spacing: 2px;

        margin-bottom: 18px;
    }

    .game-desc {
        font-size: 0.95rem;

        line-height: 1.4;

        margin-bottom: 20px;
    }

    .home-stats {
        font-size: 0.95rem;
    }

    .space-btn {
        font-size: 0.85rem;

        padding: 12px 18px;
    }

}


/* ==========================================
   FINAL MENU AND ARTWORK LAYERING
========================================== */

.lunar-scene {
    z-index: 2;

    pointer-events: none;
}

.home-card {
    z-index: 10;

    position: relative;
}

.flag-object,
.astronaut-object,
.rocket-object {
    pointer-events: none;
}


/* ==========================================
   MOBILE RESPONSIVE OVERRIDES (PHONE VS COMPUTER)
========================================== */

@media (max-width: 768px) {
    body {
        overflow: auto;
        height: auto;
    }

    .screen {
        height: 100vh;
        height: 100dvh;
    }

    .workspace {
        flex-direction: column;
    }

    /* Hide decorative sidebars on mobile screens to give the map full screen space */
    .space-sidebar,
    .right-sidebar {
        display: none !important;
    }

    /* Streamline HUD layout for mobile phones */
    .hud {
        height: auto;
        min-height: 60px;
        padding: 8px 12px;
        flex-wrap: wrap;
        gap: 6px;
        justify-content: center;
    }

    .hud-item {
        font-size: 0.9rem;
    }

    .prompt-box {
        font-size: 0.95rem;
        padding: 8px 12px;
        order: 3;
        width: 100%;
        max-width: none;
    }

    /* Expand map to fill available screen height and width */
    #map {
        width: 100vw;
        flex: 1;
        min-height: 50vh;
    }

    /* Adjust modals for mobile device dimensions */
    .modal-content {
        padding: 20px;
        width: 95%;
    }

    .modal-content h2 {
        font-size: 1.4rem;
    }

    /* Home card mobile scaling */
    .home-card {
        padding: 20px;
        width: 95%;
        max-height: 90vh;
        overflow-y: auto;
    }

    .glow-title {
        font-size: 1.8rem;
    }
}