/* =========================================================
   Minesweeper — style.css
   Dark glassmorphism theme, adapts to shared/css/main.css
   ========================================================= */

:root {
    --primary: rgb(162, 76, 255);
    --secondary: rgb(255, 125, 0);
    --akzent: rgb(255, 200, 0);
    --body-bg: #0b1020;
    --text: #ffffff;
    --text-dim: rgba(255, 255, 255, 0.55);
    --card-bg: rgba(30, 35, 55, 0.55);
    --card-border: 1px solid rgba(255, 255, 255, 0.1);
    --cell-size: 32px;
}

/* ---- Reset / base ---- */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--body-bg);
    background-image:
        radial-gradient(at 0% 0%,   hsla(253, 60%, 25%, 0.4) 0px, transparent 50%),
        radial-gradient(at 100% 100%, hsla(280, 70%, 30%, 0.5) 0px, transparent 50%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    user-select: none;
}

/* =========================================================
   SCREEN SYSTEM
   ========================================================= */

.screen {
    display: none;
    visibility: hidden;
    pointer-events: none;
    width: 100%;
    height: 100dvh;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
}

.screen.active {
    display: flex;
    visibility: visible;
    pointer-events: auto;
}

/* =========================================================
   START SCREEN
   ========================================================= */

#start-screen {
    justify-content: center;
}

.start-card {
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 20px;
    padding: 36px 40px 32px;
    width: min(480px, 94vw);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    position: relative;
}

.back-link {
    position: absolute;
    top: 16px;
    left: 20px;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color 0.2s;
}

.back-link:hover { color: var(--text); }

.game-title {
    margin: 10px 0 0;
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 900;
    letter-spacing: 4px;
    background: linear-gradient(135deg, #fff, var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-dim);
    font-size: 0.95rem;
    margin: 0;
}

/* Difficulty grid */
.diff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    width: 100%;
    margin-top: 4px;
}

.diff-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    padding: 16px 8px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
    color: var(--text);
    font-size: 0.85rem;
}

.diff-card:hover {
    background: rgba(162, 76, 255, 0.15);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(162, 76, 255, 0.25);
}

.diff-card:active { transform: translateY(0); }

.diff-emoji  { font-size: 1.8rem; line-height: 1; }
.diff-name   { font-weight: 700; font-size: 0.9rem; }
.diff-info   { color: var(--text-dim); font-size: 0.75rem; }
.diff-best   { font-size: 0.72rem; color: var(--akzent); font-variant-numeric: tabular-nums; min-height: 1em; }

/* Leaderboard button on start screen */
.leaderboard-btn {
    background: transparent;
    color: var(--akzent);
    border: 2px solid var(--akzent);
    border-radius: 50px;
    padding: 10px 28px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.leaderboard-btn:hover {
    background: rgba(255, 200, 0, 0.12);
    transform: scale(1.04);
}

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

#game-screen {
    justify-content: flex-start;
}

/* ---- Header bar ---- */
.ms-header {
    flex-shrink: 0;
    width: 100%;
    max-width: 900px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px 8px;
}

.ms-counter,
.ms-timer {
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 10px;
    padding: 8px 16px;
    font-size: 1.15rem;
    font-weight: 700;
    min-width: 80px;
    text-align: center;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 6px;
}

.ms-counter { color: var(--secondary); }
.ms-counter--negative { color: #ff6b6b; }
.ms-timer   { color: var(--akzent); justify-content: flex-end; }

.diff-badge {
    font-size: 0.7rem;
    font-weight: 600;
    background: rgba(162, 76, 255, 0.18);
    border: 1px solid rgba(162, 76, 255, 0.35);
    border-radius: 20px;
    padding: 2px 10px;
    color: rgba(255, 255, 255, 0.7);
    white-space: nowrap;
}

.counter-icon { font-size: 1rem; }

.ms-center { display: flex; justify-content: center; }

.smiley-btn {
    font-size: 2rem;
    background: var(--card-bg);
    border: var(--card-border);
    border-radius: 50%;
    width: 52px;
    height: 52px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    line-height: 1;
}

.smiley-btn:hover { transform: scale(1.1); box-shadow: 0 4px 16px rgba(162, 76, 255, 0.4); }
.smiley-btn:active { transform: scale(0.92); }

/* ---- Mobile bar (flag mode toggle + menu) ---- */
.mobile-bar {
    flex-shrink: 0;
    width: 100%;
    max-width: 900px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 16px 6px;
}

.flag-toggle-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text);
    border-radius: 20px;
    padding: 6px 16px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.flag-toggle-btn.active {
    background: rgba(255, 60, 60, 0.25);
    border-color: rgba(255, 60, 60, 0.6);
    color: #ff6b6b;
}

.back-to-menu-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-dim);
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 4px;
}

.back-to-menu-btn:hover { color: var(--text); border-color: rgba(255,255,255,0.3); }

/* ---- Board container ---- */
#board-container {
    flex: 1 1 auto;
    width: 100%;
    /* Allow much wider grid for full-screen desktop players */
    max-width: 1600px;
    display: flex;
    overflow: auto;
    padding: 8px 12px 12px;
    min-height: 0;
}

/* ---- Mine grid ---- */
#mine-grid {
    margin: auto;
    display: grid;
    /* grid-template-columns set dynamically via JS */
    gap: 2px;
    padding: 8px;
    background: rgba(0, 0, 0, 0.35);
    border: var(--card-border);
    border-radius: 10px;
    backdrop-filter: blur(8px);
    flex-shrink: 0;
    position: relative;
    z-index: 10;
}

/* =========================================================
   MINE CELLS
   ========================================================= */

.mine-cell {
    width: var(--cell-size, 32px);
    height: var(--cell-size, 32px);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: 800;
    font-size: calc(var(--cell-size, 32px) * 0.5);
    line-height: 1;
    transition: background 0.1s, transform 0.1s;
    position: relative;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Hidden (unrevealed) */
.cell-hidden {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.12), inset 0 -1px 0 rgba(0,0,0,0.2);
}

.cell-hidden:hover {
    background: rgba(162, 76, 255, 0.2);
    border-color: rgba(162, 76, 255, 0.4);
    transform: scale(0.93);
}

.cell-hidden:active { transform: scale(0.87); }

/* Flagged */
.cell-flagged {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 100, 100, 0.6);
    box-shadow: 0 0 4px rgba(255, 80, 80, 0.25);
    font-size: calc(var(--cell-size, 32px) * 0.55);
}

/* Revealed (empty or number) */
.cell-revealed {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.05);
    cursor: default;
}

/* Number cells: chord-click hover glow */
.cell-revealed[data-num] {
    cursor: pointer;
    transition: filter 0.1s, box-shadow 0.1s;
}

.cell-revealed[data-num]:hover {
    filter: brightness(1.3);
    box-shadow: 0 0 7px currentColor;
}

.cell-revealed[data-num]:active {
    transform: scale(0.9);
}

/* Mine shown after loss */
.cell-mine {
    background: rgba(255, 80, 80, 0.15);
    border: 1px solid rgba(255, 80, 80, 0.3);
    font-size: calc(var(--cell-size, 32px) * 0.55);
    cursor: default;
}

/* The mine that was actually clicked */
.cell-hit {
    background: rgba(255, 40, 40, 0.5);
    border: 1px solid #ff5555;
    animation: hitFlash 0.5s ease;
    cursor: default;
}

@keyframes hitFlash {
    0%   { background: #fff;    transform: scale(1.15); }
    30%  { background: #ff2020; transform: scale(1.2); }
    60%  { background: #ff5555; transform: scale(1.05); }
    100% { background: rgba(255, 40, 40, 0.5); transform: scale(1); }
}

@keyframes cellShake {
    0%, 100% { transform: translateX(0); }
    25%       { transform: translateX(-3px); }
    75%       { transform: translateX(3px); }
}

.cell-shake { animation: cellShake 0.25s ease; }

@keyframes cellReveal {
    from { opacity: 0; transform: scale(0.65); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes mineReveal {
    from { opacity: 0; transform: scale(0.5); }
    to   { opacity: 1; transform: scale(1); }
}

/* =========================================================
   MODALS  (same pattern as sudoku)
   ========================================================= */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.82);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    backdrop-filter: blur(10px);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal-content {
    background: rgba(28, 30, 46, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.14);
    padding: 32px 28px 28px;
    border-radius: 22px;
    text-align: center;
    width: 90%;
    max-width: 400px;
    transform: scale(0.9);
    transition: transform 0.28s cubic-bezier(0.18, 0.89, 0.32, 1.28);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-content.large-modal {
    max-width: 520px;
    text-align: left;
}

.modal-content h2 {
    margin: 0 0 12px;
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--primary);
}

.modal-time-label {
    font-size: 1.1rem;
    color: var(--text-dim);
    margin: 0 0 18px;
}

.modal-time-label strong { color: var(--akzent); font-size: 1.2rem; }

.best-label {
    color: #81c784;
    font-size: 0.9rem;
    margin: 0 0 10px;
}

/* Modal header row (for leaderboard) */
.modal-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.close-btn {
    background: rgba(255, 255, 255, 0.07);
    border: none;
    color: var(--text-dim);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: all 0.2s;
}

.close-btn:hover { background: rgba(255, 255, 255, 0.14); color: var(--text); }

/* Modal action buttons */
.modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 8px;
}

.action-btn {
    padding: 10px 22px;
    border-radius: 50px;
    border: none;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), rgb(190, 120, 255));
    color: #fff;
    box-shadow: 0 4px 16px rgba(162, 76, 255, 0.35);
}

.action-btn.primary:hover { transform: scale(1.05); box-shadow: 0 6px 22px rgba(162, 76, 255, 0.5); }

.action-btn.secondary {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-dim);
}

.action-btn.secondary:hover { background: rgba(255, 255, 255, 0.12); color: var(--text); }

/* =========================================================
   LEADERBOARD (inside modal)
   ========================================================= */

/* Tabs */
.lb-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.lb-tab {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-dim);
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.lb-tab.active,
.lb-tab:hover {
    background: rgba(162, 76, 255, 0.2);
    border-color: var(--primary);
    color: var(--text);
}

/* Entries */
.leaderboard-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 320px;
    overflow-y: auto;
    padding-right: 4px;
}

.lb-entry {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: background 0.15s;
}

.lb-entry--me {
    background: rgba(162, 76, 255, 0.16);
    border-color: rgba(162, 76, 255, 0.38);
}

.lb-rank  { font-size: 1.1rem; min-width: 28px; text-align: center; }
.lb-name  { flex: 1; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-score { color: var(--akzent); font-weight: 800; font-size: 0.95rem; font-variant-numeric: tabular-nums; white-space: nowrap; }

.lb-loading,
.lb-empty {
    color: var(--text-dim);
    text-align: center;
    font-size: 0.9rem;
    padding: 20px 0;
}

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

/* Desktop: center game, limit width */
@media (min-width: 700px) {
    .ms-header,
    .mobile-bar {
        max-width: 860px;
    }

    #board-container {
        max-width: 1600px;
    }

    .mobile-bar {
        display: none; /* hide flag mode btn – use right-click on desktop */
    }

    #game-screen {
        align-items: center;
    }

    .ms-header,
    #board-container {
        width: 100%;
    }
}

/* Mobile */
@media (max-width: 699px) {
    .ms-header {
        padding: 8px 12px 4px;
    }

    .ms-counter,
    .ms-timer {
        font-size: 0.95rem;
        padding: 6px 12px;
        min-width: 64px;
    }

    .smiley-btn {
        width: 44px;
        height: 44px;
        font-size: 1.65rem;
    }

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

    .start-card {
        padding: 28px 22px 24px;
    }
}

/* Landscape phone */
@media (max-height: 480px) and (orientation: landscape) {
    .ms-header { padding: 4px 12px; }
    .smiley-btn { width: 38px; height: 38px; font-size: 1.4rem; }
    .mobile-bar { padding: 2px 12px 4px; }
    #board-container { padding: 4px 8px 6px; }
}