@import "variables.css";

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow: hidden;
    user-select: none;
    line-height: 1.4;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--agency-red);
    z-index: 9999;
}

body:not(.is-ready) .hud-top,
body:not(.is-ready) .interaction-hint,
body:not(.is-ready) .control-dock {
    opacity: 0;
    transform: translateY(12px);
}

body.is-ready .hud-top,
body.is-ready .interaction-hint,
body.is-ready .control-dock {
    transition: opacity 0.7s ease, transform 0.7s ease;
}

body.is-ready .hud-top {
    transition-delay: 0.1s;
}

body.is-ready .interaction-hint {
    transition-delay: 0.22s;
}

body.is-ready .control-dock {
    transition-delay: 0.32s;
}

@media (prefers-reduced-motion: reduce) {
    body.is-ready .hud-top,
    body.is-ready .interaction-hint,
    body.is-ready .control-dock {
        transition: none;
    }
}

canvas {
    display: block;
    width: 100vw;
    height: 100vh;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

#ui-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
    padding: 1rem;
}

.ambient-vignette {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 16% 18%, rgba(255, 255, 255, 0.12), transparent 35%),
        radial-gradient(circle at 82% 8%, rgba(255, 255, 255, 0.1), transparent 28%),
        radial-gradient(circle at 50% 120%, rgba(0, 0, 0, 0.6), transparent 55%);
    pointer-events: none;
}

.hud-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    pointer-events: auto;
    gap: 1rem;
}

.brand-panel,
.meta-panel,
.control-dock,
#info-panel,
.interaction-hint {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.brand-panel {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 0.9rem 1rem;
    min-width: 220px;
    box-shadow: var(--shadow-xl);
    animation: panelFloat 6s ease-in-out infinite;
}

h1 {
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.tagline {
    margin-top: 0.35rem;
    font-size: 0.82rem;
    color: var(--muted-text);
    letter-spacing: 0.01em;
}

.meta-panel {
    display: flex;
    gap: 0.55rem;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 0.55rem;
    box-shadow: var(--shadow-xl);
    animation: panelFloat 7s ease-in-out infinite reverse;
}

.meta-item {
    min-width: 82px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 0.45rem 0.6rem;
}

.meta-label {
    display: block;
    font-size: 0.68rem;
    color: var(--muted-text);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.meta-value {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.95rem;
    font-weight: 600;
}

.interaction-hint {
    pointer-events: none;
    margin-top: 0.8rem;
    width: fit-content;
    padding: 0.42rem 0.75rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: var(--surface);
    color: var(--muted-text);
    font-size: 0.78rem;
    letter-spacing: 0.01em;
    opacity: 0.98;
    transition: opacity 0.45s ease;
}

.interaction-hint.is-muted {
    opacity: 0;
}

.control-dock {
    position: absolute;
    left: 50%;
    bottom: 1.2rem;
    transform: translateX(-50%);
    pointer-events: auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(120px, 1fr));
    gap: 0.55rem;
    width: min(96vw, 450px);
    padding: 0.58rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--surface-border);
    background: var(--surface);
    box-shadow: var(--shadow-xl);
    animation: dockBreathe 4.8s ease-in-out infinite;
}

.hud-btn {
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-color);
    cursor: pointer;
    font-family: var(--font-main);
    text-align: left;
    padding: 0.55rem 0.7rem;
    min-height: 54px;
    transition: transform 0.16s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.hud-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.48);
    background: rgba(255, 255, 255, 0.07);
}

.hud-btn.is-active {
    border-color: rgba(255, 255, 255, 0.7);
    background: var(--accent-soft);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25), 0 0 20px rgba(255, 255, 255, 0.18);
}

.btn-title {
    display: block;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.btn-sub {
    display: block;
    margin-top: 0.12rem;
    color: var(--muted-text);
    font-size: 0.74rem;
}

#info-panel {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: min(360px, calc(100vw - 2rem));
    background: var(--surface-strong);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: 1.2rem;
    pointer-events: auto;
    transition: opacity 0.28s ease, transform 0.28s ease;
    box-shadow: var(--shadow-xl);
}

#info-panel:not(.hidden) {
    animation: panelReveal 0.35s ease;
}

#info-panel.hidden {
    opacity: 0;
    transform: translateY(calc(-50% + 14px));
    pointer-events: none;
}

#btn-close-panel {
    position: absolute;
    top: 0.45rem;
    right: 0.6rem;
    width: 34px;
    height: 34px;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.35rem;
    cursor: pointer;
    line-height: 1;
    border-radius: var(--radius-md);
}

#btn-close-panel:hover {
    background: rgba(255, 255, 255, 0.08);
}

.panel-kicker {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted-text);
}

#planet-name {
    font-size: 1.85rem;
    margin-top: 0.22rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.stats {
    display: grid;
    gap: 0.45rem;
}

.stats p {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.65rem;
    font-size: 0.85rem;
}

.stats span {
    color: var(--muted-text);
}

.stats strong {
    color: var(--text-color);
    text-align: right;
}

.fact {
    margin-top: 1rem;
    padding: 0.88rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.035);
    border-radius: var(--radius-sm);
    font-style: italic;
    font-size: 0.92rem;
    line-height: 1.4;
}

.detail-grid {
    margin-top: 0.65rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.42rem;
}

.detail-grid p {
    display: grid;
    gap: 0.18rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-sm);
    padding: 0.45rem 0.5rem;
}

.detail-grid span {
    font-size: 0.68rem;
    color: var(--muted-text);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.detail-grid strong {
    font-size: 0.79rem;
    color: var(--text-color);
    line-height: 1.2;
}

.panel-note {
    margin-top: 0.62rem;
    font-size: 0.68rem;
    color: var(--muted-text);
    opacity: 0.9;
}

.panel-section {
    margin-top: 0.72rem;
}

.section-title {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--muted-text);
    margin-bottom: 0.4rem;
}

.mission-list {
    list-style: none;
    display: grid;
    gap: 0.35rem;
}

.mission-list li {
    font-size: 0.75rem;
    line-height: 1.3;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.02);
    padding: 0.45rem 0.55rem;
}

.mission-list strong {
    color: var(--accent-color);
    margin-right: 0.32rem;
}

.agency-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.34rem;
}

.agency-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.72rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 0.3rem 0.52rem;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.agency-links a:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.56);
}

.planet-label {
    position: absolute;
    color: var(--text-color);
    font-family: var(--font-main);
    font-size: 0.74rem;
    letter-spacing: 0.02em;
    pointer-events: none;
    border: 1px solid rgba(255, 255, 255, 0.32);
    background: var(--surface);
    padding: 3px 8px;
    border-radius: var(--radius-md);
    transform: translate(-50%, -50%);
    opacity: 0.9;
    text-shadow: 0 0 12px rgba(255, 255, 255, 0.35);
    transition: opacity 0.15s linear, transform 0.15s linear;
}

.planet-label.hidden {
    display: none;
}

button:focus-visible {
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
}

@keyframes panelFloat {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-2px);
    }
}

@keyframes dockBreathe {
    0%,
    100% {
        box-shadow: var(--shadow-xl);
    }
    50% {
        box-shadow: 0 16px 42px rgba(0, 0, 0, 0.9);
    }
}

@keyframes panelReveal {
    0% {
        opacity: 0;
        transform: translateY(calc(-50% + 18px));
    }
    100% {
        opacity: 1;
        transform: translateY(-50%);
    }
}

@media (max-width: 900px) {
    .brand-panel {
        min-width: 0;
        flex: 1;
    }

    .meta-panel {
        display: none;
    }

    #info-panel {
        top: auto;
        bottom: 5.8rem;
        right: 50%;
        transform: translateX(50%);
        width: min(94vw, 480px);
    }

    #info-panel.hidden {
        transform: translateX(50%) translateY(12px);
    }

    #info-panel:not(.hidden) {
        animation: panelRevealMobile 0.35s ease;
    }
}

@media (max-width: 600px) {
    #ui-container {
        padding: 0.75rem;
    }

    h1 {
        font-size: 1.1rem;
    }

    .tagline {
        font-size: 0.76rem;
    }

    .interaction-hint {
        max-width: 95%;
        font-size: 0.72rem;
    }

    .control-dock {
        width: calc(100vw - 1.5rem);
        bottom: 0.75rem;
    }

    .hud-btn {
        min-height: 50px;
        padding: 0.5rem 0.55rem;
    }

    .btn-sub {
        display: none;
    }

    #planet-name {
        font-size: 1.55rem;
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition-duration: 0ms !important;
        scroll-behavior: auto !important;
    }
}

@keyframes panelRevealMobile {
    0% {
        opacity: 0;
        transform: translateX(50%) translateY(16px);
    }
    100% {
        opacity: 1;
        transform: translateX(50%) translateY(0);
    }
}

/* Return Button Styles */
.btn-return {
    position: absolute;
    top: 24px;
    left: 24px;
    z-index: 100;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 8px 16px;
    color: var(--text-color);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.2s ease;
}

.btn-return:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-return {
    display: inline-block;
    color: var(--muted-text);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    padding: 2px 0;
    transition: color 0.2s;
}
.btn-return:hover {
    color: var(--text-color);
}

.btn-return {
    display: inline-block;
    color: var(--muted-text);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    padding: 2px 0;
    transition: color 0.2s;
}
.btn-return:hover {
    color: var(--text-color);
}

/* ====== MOBILE RESPONSIVENESS FOR 3D EXPLORER ====== */
@media (max-width: 900px) {
    .hud-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    .brand-panel {
        padding: 0.75rem;
        width: 90vw;
        box-sizing: border-box;
    }
    .meta-panel {
        display: none;
    }
}

@media (max-width: 768px) {
    .control-dock {
        width: 95vw;
        bottom: 10px;
        flex-wrap: wrap;
        padding: 0.5rem;
    }
    .hud-btn {
        padding: 6px 8px;
        min-width: unset;
        flex: 1 1 auto;
    }
    .btn-title {
        font-size: 0.8rem;
    }
    .btn-sub {
        display: none;
    }
    #info-panel {
        width: 90vw;
        max-height: 50vh;
        bottom: 80px;
        right: 5vw;
    }
}