/* ═══════════════════════════════════════════════════
   NavalStrike – Ship Sprites & Grid
   ═══════════════════════════════════════════════════ */

/* ─── Floating Animation ─────────────────────────── */
@keyframes shipFloat {
    0%, 100% { transform: translateY(0px) rotate(0.5deg); }
    25%      { transform: translateY(-3px) rotate(-0.3deg); }
    50%      { transform: translateY(-1px) rotate(0.8deg); }
    75%      { transform: translateY(-4px) rotate(-0.5deg); }
}

.ship {
    animation: shipFloat 4s ease-in-out infinite;
    image-rendering: auto;
    transition: filter 0.3s ease;
}

.ship--destroyer  { animation-delay: 0s;   animation-duration: 4.2s; }
.ship--battleship { animation-delay: 0.5s; animation-duration: 3.8s; }
.ship--submarine  { animation-delay: 1.0s; animation-duration: 4.5s; }
.ship--patrol     { animation-delay: 0.3s; animation-duration: 3.5s; }

.ship--dragging {
    animation: none;
    filter: brightness(1.3) drop-shadow(0 0 10px var(--accent-cyan));
    z-index: 100;
    cursor: grabbing;
}

.ship--placed {
    filter: brightness(1.1);
}

.ship--sunk {
    filter: grayscale(1) brightness(0.4);
    animation: shipSink 1.5s ease-in forwards;
}

@keyframes shipSink {
    0%   { transform: translateY(0) rotate(0deg); opacity: 1; }
    50%  { transform: translateY(10px) rotate(8deg); opacity: 0.7; }
    100% { transform: translateY(30px) rotate(15deg); opacity: 0.3; }
}

/* ─── Game Grid ──────────────────────────────────── */
.grid-container {
    position: relative;
    display: inline-block;
}

.grid-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-align: center;
}

.game-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 2px;
    padding: 2px;
    background: rgba(0, 229, 255, 0.08);
    border: 2px solid rgba(0, 229, 255, 0.15);
    border-radius: var(--radius-md);
    position: relative;
}

.grid-cell {
    width: clamp(28px, 4vw, 44px);
    height: clamp(28px, 4vw, 44px);
    background: rgba(10, 25, 47, 0.6);
    border: 1px solid rgba(0, 229, 255, 0.06);
    cursor: pointer;
    position: relative;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-cell:hover {
    background: rgba(0, 229, 255, 0.1);
    border-color: rgba(0, 229, 255, 0.3);
}

.grid-cell--ship {
    background: rgba(0, 150, 255, 0.15);
    border-color: rgba(0, 150, 255, 0.3);
}

.grid-cell--valid {
    background: rgba(0, 230, 118, 0.1);
    border-color: rgba(0, 230, 118, 0.3);
}

.grid-cell--invalid {
    background: rgba(255, 61, 90, 0.1);
    border-color: rgba(255, 61, 90, 0.3);
}

.grid-cell--hit {
    background: rgba(255, 61, 90, 0.2);
    border-color: var(--accent-red);
}

.grid-cell--hit::after {
    content: '✕';
    color: var(--accent-red);
    font-size: 1.2rem;
    font-weight: 700;
    animation: hitMark 0.5s var(--ease-spring);
}

.grid-cell--miss {
    background: rgba(100, 150, 200, 0.1);
}

.grid-cell--miss::after {
    content: '•';
    color: var(--text-muted);
    font-size: 1.5rem;
}

.grid-cell--sunk {
    background: rgba(255, 61, 90, 0.3);
    border-color: var(--accent-red);
}

.grid-cell--sunk::after {
    content: '🔥';
    font-size: 0.9rem;
    animation: fireFlicker 1s ease-in-out infinite alternate;
}

@keyframes hitMark {
    from { transform: scale(0) rotate(-90deg); }
    to   { transform: scale(1) rotate(0); }
}

@keyframes fireFlicker {
    0% { transform: scale(1); }
    100% { transform: scale(1.15); }
}

/* ─── Grid Labels ────────────────────────────────── */
.grid-wrapper {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.grid-cols-header {
    display: grid;
    grid-template-columns: 24px repeat(10, 1fr);
    gap: 2px;
    padding-left: 0;
}

.grid-cols-header span {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 600;
}

.grid-body {
    display: flex;
    gap: 4px;
}

.grid-rows-header {
    display: flex;
    flex-direction: column;
    gap: 2px;
    justify-content: center;
}

.grid-rows-header span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: clamp(28px, 4vw, 44px);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* ─── Ship Dock (Placement Phase) ────────────────── */
.ship-dock {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.dock-ship {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--surface-elevated);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    cursor: grab;
    transition: all 0.3s var(--ease-out);
}

.dock-ship:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
}

.dock-ship--placed {
    opacity: 0.3;
    cursor: default;
    pointer-events: none;
}

.dock-ship__preview {
    display: flex;
    gap: 2px;
}

.dock-ship__cell {
    width: 16px;
    height: 16px;
    background: var(--accent-cyan);
    border-radius: 2px;
    opacity: 0.6;
}

.dock-ship__info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.dock-ship__name {
    font-weight: 600;
    font-size: 0.9rem;
}

.dock-ship__size {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ─── Battle Layout ──────────────────────────────── */
.battle-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
    max-width: 1000px;
    margin: 0 auto;
}

.board-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.board-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.board-title--enemy {
    color: var(--accent-red);
}

/* ─── Shot Log ───────────────────────────────────── */
.shot-log {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    max-height: 200px;
    overflow-y: auto;
    padding: var(--space-md);
    background: var(--surface-elevated);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-family: var(--font-mono);
    scrollbar-width: thin;
    scrollbar-color: var(--ocean-400) transparent;
}

.shot-log-entry {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
    padding: 4px 8px;
    border-radius: 4px;
    animation: logSlideIn 0.3s var(--ease-out);
}

.shot-log-entry--hit { background: rgba(255, 61, 90, 0.1); }
.shot-log-entry--miss { background: rgba(100, 150, 200, 0.05); }
.shot-log-entry--sunk { background: rgba(255, 215, 0, 0.1); }

@keyframes logSlideIn {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ─── Placement Layout ───────────────────────────── */
.placement-layout {
    display: grid;
    grid-template-columns: auto 280px;
    gap: var(--space-2xl);
    align-items: start;
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .battle-layout {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .placement-layout {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .grid-cell {
        width: clamp(26px, 8vw, 36px);
        height: clamp(26px, 8vw, 36px);
    }
}