* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Baloo 2', 'Comic Sans MS', cursive, sans-serif;
    background: linear-gradient(180deg, #8fd8ff 0%, #bfe9a8 35%, #a9dd8c 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-bottom: 3rem;
}

/* ---------------- HUD ---------------- */
.hud {
    width: 100%;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(180deg, #8a5a2b, #6b4420);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
    position: sticky;
    top: 0;
    z-index: 50;
    flex-wrap: wrap;
}

.hud__home {
    color: #fff4de;
    text-decoration: none;
    font-size: 1.4rem;
    width: 2.4rem;
    height: 2.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    transition: background 0.2s ease;
}

.hud__home:hover {
    background: rgba(255, 255, 255, 0.25);
}

.hud__stat {
    color: #fff4de;
    font-weight: 700;
    font-size: 1.15rem;
    background: rgba(0, 0, 0, 0.18);
    padding: 0.35rem 0.75rem;
    border-radius: 0.75rem;
    white-space: nowrap;
}

.hud__icon-btn {
    margin-left: auto;
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: #fff4de;
    font-size: 1.2rem;
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s ease;
}

.hud__icon-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

.hud__icon-btn.muted {
    opacity: 0.6;
}

/* ---------------- Seed bank ---------------- */
.seed-bank {
    display: flex;
    gap: 0.5rem;
}

.seed-card {
    position: relative;
    width: 68px;
    height: 82px;
    background: linear-gradient(180deg, #f4e2b8, #e6c98a);
    border: 2px solid #7a4a24;
    border-radius: 0.6rem;
    cursor: pointer;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    user-select: none;
}

.seed-card:hover {
    transform: translateY(-2px);
}

.seed-card--selected {
    box-shadow: 0 0 0 3px #ffd23f, 0 0 12px rgba(255, 210, 63, 0.8);
}

.seed-card--unaffordable {
    filter: grayscale(60%) brightness(0.85);
}

.seed-card--deny {
    animation: shake 0.3s ease;
}

.seed-card__icon {
    font-size: 1.6rem;
    line-height: 1;
}

.seed-card__cost {
    font-size: 0.7rem;
    font-weight: 700;
    color: #4a2e12;
}

.seed-card__name {
    font-size: 0.55rem;
    font-weight: 600;
    color: #5a3a1a;
    text-align: center;
    padding: 0 2px;
}

.seed-card__cooldown {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 0%;
    background: rgba(10, 10, 10, 0.55);
    pointer-events: none;
    transition: height 0.15s linear;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* ---------------- Board ---------------- */
.board-wrap {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    display: flex;
    justify-content: center;
    padding: 1.5rem 1rem;
}

.board {
    box-sizing: content-box;
    position: relative;
    background-image: url("../images/land.png");
    background-size: 100% 100%;
    background-repeat: no-repeat;
    border: 10px solid #6b4420;
    border-radius: 0.75rem;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
    flex-shrink: 0;
}

.row {
    position: relative;
    display: flex;
    align-items: center;
}

.mower {
    flex-shrink: 0;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    filter: drop-shadow(1px 2px 2px rgba(0, 0, 0, 0.4));
    transition: transform 0.9s cubic-bezier(0.55, 0, 0.85, 0.35);
    z-index: 20;
    transform: translateX(-6px);
}

.mower--running {
    z-index: 30;
}

.lane {
    position: relative;
    height: 100%;
}

.cell {
    position: absolute;
    top: 0;
    height: 100%;
    cursor: pointer;
}

.cell:hover {
    background: rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.35);
}

/* ---------------- Plants ---------------- */
.plant {
    position: absolute;
    top: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 5;
    pointer-events: none;
}

.plant__icon {
    font-size: 2.3rem;
    filter: drop-shadow(1px 3px 2px rgba(0, 0, 0, 0.35));
    animation: sway 2.4s ease-in-out infinite;
}

@keyframes sway {
    0%, 100% { transform: rotate(-4deg); }
    50% { transform: rotate(4deg); }
}

.plant__hp {
    width: 60%;
    height: 5px;
    background: rgba(0, 0, 0, 0.35);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 2px;
}

.plant__hp-fill {
    height: 100%;
    width: 100%;
    background: #5cc95c;
    transition: width 0.2s ease;
}

/* ---------------- Zombies ---------------- */
.zombie {
    position: absolute;
    top: 8%;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 6;
    transition: left 0.05s linear;
}

.zombie img {
    height: 84%;
    max-height: 74px;
    display: block;
    filter: drop-shadow(1px 3px 3px rgba(0, 0, 0, 0.4));
}

.zombie__hp {
    width: 42px;
    height: 6px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 2px;
}

.zombie__hp-fill {
    height: 100%;
    width: 100%;
    background: #e2483d;
    transition: width 0.2s ease;
}

.zombie--dead {
    animation: zombieFall 0.25s ease forwards;
}

@keyframes zombieFall {
    to {
        transform: rotate(85deg) translateY(10px);
        opacity: 0;
    }
}

/* ---------------- Peas ---------------- */
.pea {
    position: absolute;
    top: 50%;
    width: 14px;
    height: 14px;
    margin-top: -7px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #d4ff7a, #6f9c1f);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.35);
    z-index: 7;
}

/* ---------------- Falling sun ---------------- */
.falling-sun {
    position: absolute;
    font-size: 1.9rem;
    cursor: pointer;
    z-index: 15;
    filter: drop-shadow(0 0 6px rgba(255, 210, 63, 0.85));
    transition: transform 0.15s ease, opacity 0.4s ease;
    animation: spin 6s linear infinite;
}

.falling-sun:hover {
    transform: scale(1.15);
}

.falling-sun--fade {
    opacity: 0;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ---------------- Floating text ---------------- */
.float-text {
    position: absolute;
    top: 6px;
    font-weight: 800;
    font-size: 0.95rem;
    color: #ffb703;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    pointer-events: none;
    z-index: 25;
    animation: floatUp 0.9s ease-out forwards;
}

@keyframes floatUp {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(-30px); }
}

/* ---------------- Overlay ---------------- */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(5, 15, 5, 0.72);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 1rem;
}

.overlay.hidden {
    display: none;
}

.overlay__panel {
    background: linear-gradient(180deg, #fdf6e3, #f0e2bb);
    border: 4px solid #6b4420;
    border-radius: 1rem;
    padding: 2rem 1.75rem;
    max-width: 420px;
    text-align: center;
    box-shadow: 0 25px 60px -20px rgba(0, 0, 0, 0.7);
}

.overlay__panel h2 {
    margin: 0 0 0.75rem;
    font-size: 1.6rem;
}

.overlay--win .overlay__panel h2 {
    color: #2f8f3a;
}

.overlay--lose .overlay__panel h2 {
    color: #c23a2e;
}

.overlay__panel p {
    margin: 0 0 1.5rem;
    color: #4a3a20;
    font-weight: 600;
}

.overlay__actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.overlay__btn {
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-weight: 700;
    font-size: 1rem;
    padding: 0.65rem 1.4rem;
    border-radius: 2rem;
    background: linear-gradient(180deg, #7ed957, #4caf3c);
    color: #143d0d;
    text-decoration: none;
    box-shadow: 0 6px 14px -6px rgba(0, 0, 0, 0.5);
    transition: transform 0.15s ease;
}

.overlay__btn:hover {
    transform: translateY(-2px);
}

.overlay__btn--ghost {
    background: rgba(0, 0, 0, 0.08);
    color: #4a3a20;
}

@media (max-width: 640px) {
    .hud {
        justify-content: center;
    }
    .hud__icon-btn {
        margin-left: 0;
    }
}