/* The base styles: the display font, a short element reset, the page frame, the motion toolkit and the styles of
   WebClientBase's components, whose classes are prefixed mp-. Plain CSS; the game's styles go in the
   WebClient's app.css, which loads after this file.

   Colours read the theme variables (--bg-primary, --text-secondary, --accent-blue, ...) that App.razor renders
   into the head from the game's ThemeColors. */

/* Text uses the system's UI font. The display face, Lilita One, is served from ../fonts/ with its SIL Open Font
   License text: the original font, only WOFF2-compressed, as the license allows under its reserved name. */
@font-face {
    font-family: 'Lilita One';
    font-display: swap;
    src: url("../fonts/lilita-one.woff2") format("woff2");
}

/* Reset: sizes include padding and border, elements have no default spacing, headings and controls take the
   surrounding text style, and media lay out as blocks. */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

h1, h2, h3, button, input, select, textarea {
    font: inherit;
    color: inherit;
}

button {
    border: 0;
    background: none;
}

img, svg, video, canvas {
    display: block;
    max-width: 100%;
}

/* Page frame: the window never scrolls; the screen inside it does, when it has to. */
html, body, #app {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body {
    font-family: system-ui, sans-serif;
    color: var(--text-primary);
}

/* A page's root element fills this with height: 100%, so it must be a direct child of main. */
.mp-screen {
    width: 100%;
    height: 100vh;
    height: 100dvh;
    /* Screens are laid out to fit; this scrolls only when the window is too small for one. */
    overflow-y: auto;
    overscroll-behavior: contain;
}

/* Smooth, springy transitions */
button {
    transition: transform 0.12s cubic-bezier(0.34, 1.56, 0.64, 1),
                filter 0.12s ease,
                box-shadow 0.15s ease,
                background 0.15s ease,
                opacity 0.15s ease;
}

button:active:not(:disabled) {
    transform: scale(0.96);
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Selection */
::selection {
    background: rgba(59, 130, 246, 0.3);
}

/* Blazor error UI */
#blazor-error-ui {
    display: none;
    position: fixed;
    bottom: 0;
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--accent-red, #ef4444);
    color: white;
    z-index: 1000;
    font-size: 0.875rem;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

#blazor-error-ui .reload {
    color: white;
    text-decoration: underline;
    margin-left: 0.5rem;
}

/* ===========================================================================
   Motion toolkit — reusable entrance + idle animations (Supercell-style juice)
   Spring easing gives a slight overshoot so things "land" with weight. Keep
   durations snappy; UIs should feel alive, never sluggish. The game UI uses them
   via the .animate-* classes.
   =========================================================================== */
:root {
    /* The theme is dark, so the browser draws focus rings, scrollbars and form controls in dark-scheme colours. */
    color-scheme: dark;
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Chunky rounded display face for hero numbers, titles and primary CTAs.
   Body copy stays in the system font (set on body above). */
.font-display {
    font-family: 'Lilita One', system-ui, sans-serif;
    letter-spacing: 0.01em;
}

@keyframes mp-pop-in {
    0%   { opacity: 0; transform: scale(0.85); }
    60%  { opacity: 1; transform: scale(1.03); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes mp-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes mp-float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-6px); }
}

@keyframes mp-pulse-glow {
    0%, 100% { box-shadow: 0 8px 24px -6px var(--glow-color, rgba(245,197,66,0.6)),
                           inset 0 1px 0 rgba(255,255,255,0.35); }
    50%      { box-shadow: 0 12px 34px -4px var(--glow-color, rgba(245,197,66,0.95)),
                           inset 0 1px 0 rgba(255,255,255,0.35); }
}

@keyframes mp-count-pop {
    0%   { transform: scale(1.18); }
    100% { transform: scale(1); }
}

.animate-pop-in    { animation: mp-pop-in 0.30s var(--ease-spring) both; }
.animate-fade-in   { animation: mp-fade-in 0.20s ease both; }
.animate-float     { animation: mp-float 4.5s ease-in-out infinite; }
.animate-count-pop { animation: mp-count-pop 0.22s var(--ease-spring); }

/* Glossy, tactile button: top highlight, solid bottom "lip" for depth, springy
   press that sinks into the lip. Apply alongside your colour/background. */
.btn-glossy {
    position: relative;
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.35),
                0 8px 18px -6px rgba(0, 0, 0, 0.55),
                inset 0 1px 0 rgba(255, 255, 255, 0.30);
}
.btn-glossy:active:not(:disabled) {
    transform: translateY(3px) scale(0.99);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.35),
                0 3px 10px -6px rgba(0, 0, 0, 0.55),
                inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

/* Accessibility: honour reduced-motion. Entrance animations resolve instantly
   (both/forwards keeps the final state); idle loops are silenced. */
@media (prefers-reduced-motion: reduce) {
    .animate-pop-in,
    .animate-fade-in,
    .animate-count-pop {
        animation-duration: 0.001s;
    }
    .animate-float {
        animation: none;
    }
}

/* ===========================================================================
   WebClientBase's components
   =========================================================================== */

/* Buttons of the debug bar and the connection overlay. */
.mp-button {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    background: var(--accent-blue);
    color: white;
    font-weight: 500;
}

.mp-button--danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

/* A spinning ring in the accent colour. Reduced motion slows it down but keeps it turning, because it shows that
   something is in progress. */
.mp-spinner {
    width: 1.75rem;
    height: 1.75rem;
    border: 3px solid var(--accent-blue);
    border-right-color: transparent;
    border-radius: 50%;
    animation: mp-spin 0.75s linear infinite;
}

@keyframes mp-spin {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .mp-spinner {
        animation-duration: 3s;
    }
}

/* Debug bar (Layout/MainLayout.razor): floats over the game without changing its layout. pointer-events: none
   lets clicks pass through to the game; its items re-enable them. */
.mp-debugbar {
    position: fixed;
    inset: 0 0 auto;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.375rem;
    height: 3rem;
    padding: 0 1.5rem;
    font-size: 11px;
    pointer-events: none;
}

.mp-debugbar > * {
    pointer-events: auto;
}

.mp-debugbar .mp-button {
    padding: 0.25rem 0.625rem;
    border-radius: 0.25rem;
}

.mp-debugbar__chip {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(4px);
    color: var(--text-secondary);
}

.mp-debugbar__dot {
    width: 0.375rem;
    height: 0.375rem;
    border-radius: 50%;
    background: var(--text-muted);
}

.mp-debugbar__dot--connected  { background: var(--accent-green); }
.mp-debugbar__dot--connecting { background: var(--accent-amber); animation: mp-blink 2s ease-in-out infinite; }
.mp-debugbar__dot--error      { background: var(--accent-red); }

@keyframes mp-blink {
    50% { opacity: 0.5; }
}

/* Startup splash (StartupSplash.razor): what stands in for the page until the first session has a player. */
.mp-startup {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    height: 100%;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Connection overlay (ConnectionOverlay.razor): a modal dialog while the session is lost. */
.mp-conn-dialog {
    width: min(24rem, calc(100% - 2rem));
    margin: auto;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    background: var(--bg-card);
    color: var(--text-secondary);
    text-align: center;
}

.mp-conn-dialog::backdrop {
    background: rgba(0, 0, 0, 0.6);
}

.mp-conn-dialog > * + * {
    margin-top: 0.75rem;
}

.mp-conn-dialog .mp-spinner {
    margin-inline: auto;
}

.mp-conn-dialog h2 {
    color: var(--text-primary);
    font-size: 1.375rem;
}

.mp-conn-dialog__actions {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    padding-top: 0.5rem;
}

/* The not-found and error pages. The top padding clears the debug bar. */
.mp-page {
    padding: 4rem 1.5rem 1.5rem;
    color: var(--text-secondary);
}

.mp-page--centered {
    text-align: center;
}

.mp-page h1 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
}

.mp-error {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--bg-card);
}

.mp-error h1 {
    color: var(--accent-red);
}

.mp-error__small {
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.mp-error code {
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    background: var(--bg-hover);
}

.mp-error section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.mp-error h3 {
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
}

.mp-error section .mp-error__small {
    margin-top: 0.5rem;
}