/* ================================================
   Malaysian 3-Player Mahjong — Styles
   ================================================ */

/* --- Reset & Base --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 20px;
    -webkit-tap-highlight-color: transparent;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9em;
    color: white;
    background: #555;
    transition: opacity 0.15s, transform 0.1s;
    -webkit-user-select: none;
    user-select: none;
}
.btn:active { opacity: 0.85; transform: scale(0.96); }
.btn-primary   { background: #1976D2; }
.btn-success   { background: #388E3C; }
.btn-danger    { background: #D32F2F; }
.btn-warning   { background: #F57C00; }
.btn-info      { background: #0288D1; }
.btn-secondary { background: #616161; }
.btn-sm { padding: 5px 10px; font-size: 0.8em; }

.btn-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-top: 15px;
}

/* --- Forms --- */
.form-group {
    margin-bottom: 12px;
}
.form-group label {
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
    font-size: 0.9em;
}
.form-group input {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.08);
    color: white;
    font-size: 1em;
}

/* --- Messages --- */
.message {
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.9em;
    text-align: center;
    margin-top: 10px;
}
.message-info    { background: rgba(33,150,243,0.15);  color: #90caf9; }
.message-success { background: rgba(76,175,80,0.15);   color: #a5d6a7; }
.message-error   { background: rgba(244,67,54,0.15);   color: #ef9a9a; }
.message-warning { background: rgba(255,152,0,0.15);   color: #ffcc80; }

/* --- Screens (lobby / room shared container) --- */
.screen {
    max-width: 800px;
    margin: 0 auto;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.screen h1, .screen h2, .screen h3 { margin-bottom: 10px; }

.subtitle {
    text-align: center;
    color: #aaa;
    margin-bottom: 20px;
    font-size: 0.95em;
}

.section {
    margin-top: 20px;
    padding: 15px;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
}

/* --- Player cards (room screen) --- */
.player-card {
    padding: 10px;
    margin-bottom: 8px;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
}
.host-badge {
    background: #FF9800;
    color: #000;
    font-size: 0.75em;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: bold;
    margin-left: 6px;
}

/* --- Utility --- */
.hidden {
    display: none !important;
}


/* ================================================
   GAME SCREEN — Fullscreen Layout
   ================================================ */

/* Override .screen defaults: game fills entire viewport */
#game {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
    border-radius: 0 !important;
    border: none !important;
    background: #1b5e20 !important;
    backdrop-filter: none !important;
    box-shadow: none !important;
    overflow: hidden !important;
    z-index: 100;
}

#game-table {
    position: absolute !important;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    background: radial-gradient(ellipse at center, #2e7d32 0%, #256427 60%, #1b5e20 100%) !important;
    overflow: hidden !important;
}


/* --- Info Overlay (top-left) --- */
#game-info {
    position: absolute;
    top: 6px;
    left: 6px;
    color: #fff;
    background: rgba(0, 0, 0, 0.55);
    padding: 5px 8px;
    border-radius: 6px;
    z-index: 10;
    font-size: clamp(0.6rem, 1.4vmin, 0.8rem);
    line-height: 1.4;
}


/* --- Center Discard Area ---
   Positioned between side players, above the bottom player area.
   Uses left/right/top/bottom so it never overlaps side players. */
#center-area {
    position: absolute !important;
    top: 5% !important;
    left: 14% !important;
    right: 14% !important;
    bottom: 34% !important;
    width: auto !important;
    height: auto !important;
    max-width: none !important;
    max-height: none !important;
    transform: none !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    overflow: hidden;
}

#discardPile {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-content: center;
    gap: 2px;
    max-width: 100%;
    max-height: 100%;
    overflow: hidden;
    padding: 4px;
}


/* --- Left Player ---
   Fixed width on the left edge, vertically spanning the middle zone. */
#player-left {
    position: absolute !important;
    left: 0 !important;
    top: 5% !important;
    bottom: 34% !important;
    width: 13% !important;
    max-width: none !important;
    transform: none !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: flex-start !important;
    overflow: hidden !important;
    padding-left: 4px;
}


/* --- Right Player ---
   Mirror of left player on the right edge. */
#player-right {
    position: absolute !important;
    right: 0 !important;
    left: auto !important;
    top: 5% !important;
    bottom: 34% !important;
    width: 13% !important;
    max-width: none !important;
    transform: none !important;
    display: flex !important;
    flex-direction: row-reverse !important;
    align-items: center !important;
    justify-content: flex-start !important;
    overflow: hidden !important;
    padding-right: 4px;
}


/* Side player sub-elements */
.side-hand {
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    max-height: 100%;
    overflow: hidden;
}

.side-melds {
    display: flex !important;
    flex-direction: column !important;
    gap: 2px !important;
    overflow: hidden;
    flex-shrink: 1;
    max-height: 100%;
}

#melds-bonus-left  { margin-left: 4px !important; }
#melds-bonus-right { margin-right: 4px !important; }


/* Player name labels (side players) */
.player-name-label {
    position: absolute !important;
    top: -2px !important;
    color: #fff !important;
    font-weight: bold !important;
    font-size: clamp(0.55rem, 1.2vmin, 0.75rem) !important;
    white-space: nowrap !important;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

#name-left  { left: 4px !important; right: auto !important; }
#name-right { right: 4px !important; left: auto !important; text-align: right; }


/* --- Bottom Player (Me) ---
   Full-width strip at the bottom of the game table. */
#player-me {
    position: absolute !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: auto !important;
    transform: none !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: flex-end !important;
    padding: 2px 2% 4px !important;
    max-height: 33%;
}

#melds-bonus-me {
    display: flex !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    gap: 4px !important;
    margin-bottom: 4px !important;
    max-width: 100%;
    overflow: hidden;
}

#currentHand {
    display: flex !important;
    justify-content: center !important;
    align-items: flex-end !important;
    flex-wrap: nowrap !important;
    width: 100% !important;
    overflow: hidden;
}


/* Bottom bar: player name left, action buttons right */
#player-bottom-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 2px 4px;
    margin-top: 2px;
}

#player-me-info {
    color: #fff;
    font-weight: bold;
    font-size: clamp(0.65rem, 1.4vmin, 0.85rem);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
}


/* --- Game Controls (action buttons) --- */
#game-controls {
    display: flex;
    gap: 4px;
    flex-wrap: nowrap;
    align-items: center;
}

#game-controls .btn {
    padding: 6px 10px;
    font-size: clamp(0.55rem, 1.2vmin, 0.75rem);
    white-space: nowrap;
    border-radius: 6px;
}


/* --- Game Message ---
   Floating notification above the bottom player area. */
#gameMessage {
    position: absolute !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    bottom: 34% !important;
    background: rgba(0, 0, 0, 0.75) !important;
    color: #fff !important;
    padding: 5px 14px !important;
    border-radius: 6px !important;
    font-size: clamp(0.6rem, 1.3vmin, 0.8rem) !important;
    z-index: 15 !important;
    max-width: 65% !important;
    text-align: center !important;
    pointer-events: none;
    margin: 0 !important;
}

#gameMessage.message-info    { background: rgba(33,150,243,0.8) !important; }
#gameMessage.message-success { background: rgba(76,175,80,0.8) !important; }
#gameMessage.message-error   { background: rgba(244,67,54,0.8) !important; }
#gameMessage.message-warning { background: rgba(255,152,0,0.8) !important; }


/* Tile flex behavior — allow tiles to shrink in flex containers */
.tile {
    flex-shrink: 1;
    min-width: 0;
}


/* ================================================
   RESPONSIVE BREAKPOINTS
   ================================================ */

/* Small phones (< 480px width) */
@media (max-width: 480px) {
    body { padding: 10px; }
    .screen { padding: 15px; }

    #player-left,
    #player-right { width: 10% !important; }
    #center-area  { left: 11% !important; right: 11% !important; }
}

/* Tablets — iPad, Android tablets (768px+) */
@media (min-width: 768px) {
    #player-left,
    #player-right { width: 14% !important; }
    #center-area  { left: 15% !important; right: 15% !important; }

    #game-controls .btn {
        padding: 8px 14px;
        font-size: clamp(0.65rem, 1.3vmin, 0.85rem);
    }
}

/* Large tablets / desktop (1024px+) */
@media (min-width: 1024px) {
    #player-left,
    #player-right { width: 15% !important; }
    #center-area  { left: 16% !important; right: 16% !important; }
}

/* Portrait orientation — give more vertical room to bottom player */
@media (orientation: portrait) {
    #center-area { top: 4% !important; bottom: 38% !important; }
    #player-left,
    #player-right { bottom: 38% !important; }
    #player-me { max-height: 37%; }

    #gameMessage { bottom: 38% !important; }
}

/* Landscape on short screens (phones rotated) */
@media (orientation: landscape) and (max-height: 500px) {
    #center-area { bottom: 38% !important; }
    #player-left,
    #player-right { bottom: 38% !important; }
    #player-me { max-height: 38%; padding-bottom: 2px !important; }

    #game-controls .btn { padding: 4px 8px; }
    #gameMessage { bottom: 39% !important; }
}

/* ================================================
   ENHANCED LANDSCAPE SUPPORT
   ================================================ */

/* Landscape orientation - general improvements */
@media (orientation: landscape) {
    #center-area {
        top: 8% !important;
        bottom: 36% !important;
        left: 16% !important;
        right: 16% !important;
    }

    #player-left,
    #player-right {
        top: 8% !important;
        bottom: 36% !important;
        width: 15% !important;
    }

    #player-me {
        max-height: 35%;
    }

    /* Larger touch targets for buttons */
    #game-controls .btn {
        padding: 8px 12px;
        font-size: clamp(0.7rem, 1.4vmin, 0.9rem);
        min-height: 44px; /* Minimum touch target size */
        min-width: 44px;
    }

    /* Adjust tile sizes for better landscape viewing */
    .tile {
        width: 5.5vmin;
        height: 7.7vmin;
    }

    /* Adjust font sizes for better readability */
    #game-info {
        font-size: clamp(0.7rem, 1.5vmin, 0.9rem);
    }

    #gameMessage {
        bottom: 36% !important;
        font-size: clamp(0.7rem, 1.4vmin, 0.9rem) !important;
    }

    #player-me-info {
        font-size: clamp(0.75rem, 1.5vmin, 1rem);
    }
}

/* Tablets in landscape mode */
@media (orientation: landscape) and (min-width: 768px) {
    #center-area {
        left: 18% !important;
        right: 18% !important;
        top: 10% !important;
        bottom: 38% !important;
    }

    #player-left,
    #player-right {
        width: 17% !important;
        top: 10% !important;
        bottom: 38% !important;
    }

    #player-me {
        max-height: 37%;
    }

    /* Even larger tiles for tablets */
    .tile {
        width: 6.5vmin;
        height: 9.1vmin;
    }

    #game-controls .btn {
        padding: 10px 15px;
        font-size: clamp(0.8rem, 1.6vmin, 1rem);
    }
}

/* Phones in landscape mode */
@media (orientation: landscape) and (max-width: 767px) {
    body {
        padding: 8px;
    }

    .screen {
        padding: 20px;
    }

    #center-area {
        left: 13% !important;
        right: 13% !important;
        top: 6% !important;
        bottom: 34% !important;
    }

    #player-left,
    #player-right {
        width: 12% !important;
        top: 6% !important;
        bottom: 34% !important;
    }

    #player-me {
        max-height: 33%;
    }

    /* Slightly smaller tiles for phones but still optimized */
    .tile {
        width: 5vmin;
        height: 7vmin;
    }

    #game-controls .btn {
        padding: 6px 10px;
        font-size: clamp(0.65rem, 1.3vmin, 0.8rem);
        min-height: 40px;
    }
}

/* Wide screens in landscape (desktops, large tablets) */
@media (orientation: landscape) and (min-width: 1024px) {
    #center-area {
        left: 20% !important;
        right: 20% !important;
    }

    #player-left,
    #player-right {
        width: 19% !important;
    }

    /* Largest tiles for wide screens */
    .tile {
        width: 7vmin;
        height: 9.8vmin;
    }

    #game-controls .btn {
        padding: 12px 18px;
        font-size: clamp(0.9rem, 1.8vmin, 1.2rem);
    }
}