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

/* Large Desktop */
@media (min-width: 1400px) {
    .upgrades-panel {
        width: 380px;
    }
    #candy-canvas {
        width: 240px;
        height: 240px;
    }
    .candy-count {
        font-size: 52px;
    }
}

/* Desktop */
@media (min-width: 900px) {
    .game-layout {
        flex-direction: row;
    }
    .upgrades-panel {
        display: flex !important;
    }
    .candy-panel {
        padding: 24px;
    }
}

/* Tablet */
@media (max-width: 899px) and (min-width: 600px) {
    .game-layout {
        flex-direction: column;
    }
    .upgrades-panel {
        width: 100%;
        min-width: unset;
        border-left: none;
        border-top: 1px solid var(--card-border);
        max-height: 45vh;
    }
    .candy-panel {
        flex: 0 0 auto;
        padding: 12px;
    }
    #candy-canvas {
        width: 180px;
        height: 180px;
    }
    .candy-count {
        font-size: 36px;
    }
    .upgrades-list {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        padding: 12px;
    }
}

/* Mobile Portrait */
@media (max-width: 599px) {
    .game-layout {
        flex-direction: column;
    }
    .upgrades-panel {
        width: 100%;
        min-width: unset;
        border-left: none;
        border-top: 1px solid var(--card-border);
        flex: 1;
    }
    .candy-panel {
        flex: 0 0 auto;
        padding: 10px;
    }
    #candy-canvas {
        width: 160px;
        height: 160px;
    }
    .candy-count {
        font-size: 30px;
    }
    .production-rates {
        gap: 8px;
    }
    .production-rates span {
        font-size: 11px;
        padding: 3px 8px;
    }
    .header-stats {
        gap: 12px;
    }
    .stat-value {
        font-size: 14px;
    }
    .menu-logo h1 {
        font-size: 28px;
    }
    .menu-logo {
        padding: 18px 20px;
    }
    .logo-candy {
        width: 64px;
        height: 64px;
    }
    .menu-content {
        padding-right: 12px;
        padding-left: 12px;
        gap: 16px;
    }
    .menu-buttons {
        padding: 14px;
        gap: 8px;
    }
    .menu-buttons .btn {
        font-size: 14px;
        padding: 10px 16px;
    }
    .modal-content {
        max-height: 90vh;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
    .stat-card-value {
        font-size: 15px;
    }
}

/* Mobile Landscape */
@media (max-width: 900px) and (orientation: landscape) and (max-height: 500px) {
    .game-layout {
        flex-direction: row;
    }
    .upgrades-panel {
        width: 260px;
        min-width: 220px;
        border-left: 1px solid var(--card-border);
        border-top: none;
        max-height: unset;
    }
    .candy-panel {
        padding: 8px;
    }
    #candy-canvas {
        width: 130px;
        height: 130px;
    }
    .candy-count {
        font-size: 24px;
    }
    .xp-bar-container {
        display: none;
    }
    .tap-hint {
        display: none;
    }
    .game-header {
        padding: 6px 12px;
    }
}

/* Very small screens */
@media (max-width: 360px) {
    #candy-canvas {
        width: 140px;
        height: 140px;
    }
    .candy-count {
        font-size: 26px;
    }
    .header-stats {
        gap: 8px;
    }
    .stat-label {
        font-size: 9px;
    }
    .stat-value {
        font-size: 13px;
    }
}

/* 4K screens */
@media (min-width: 2560px) {
    .upgrades-panel {
        width: 480px;
    }
    #candy-canvas {
        width: 300px;
        height: 300px;
    }
    .candy-count {
        font-size: 64px;
    }
    .btn {
        font-size: 18px;
        padding: 16px 32px;
    }
}

/* Touch devices - larger tap targets */
@media (hover: none) and (pointer: coarse) {
    .btn-upgrade {
        min-height: 44px;
        padding: 10px 16px;
    }
    .btn {
        min-height: 52px;
    }
    .upgrade-card {
        padding: 16px;
    }
}

/* Compact upgrades drawer on mobile and tablet */
@media (max-width: 899px) {
    .candy-panel {
        flex: 1 1 auto;
        min-height: 0;
        justify-content: flex-start;
    }

    .candy-counter-area {
        position: absolute;
        top: 12px;
        left: 12px;
        right: 12px;
        margin: 0;
    }

    .xp-bar-container {
        position: absolute;
        top: 112px;
        left: 12px;
        right: 12px;
        margin: 0;
    }

    .candy-wrapper {
        position: absolute;
        top: calc(50% - 16px);
        left: 50%;
        transform: translate(-50%, -50%);
    }

    .upgrades-panel {
        position: fixed;
        z-index: 1100;
        top: auto;
        right: env(safe-area-inset-right, 0px);
        bottom: env(safe-area-inset-bottom, 0px);
        left: env(safe-area-inset-left, 0px);
        width: auto;
        min-width: 0;
        height: 56px;
        max-height: none;
        flex: none;
        border: 1px solid var(--card-border);
        border-bottom: 0;
        border-radius: var(--radius) var(--radius) 0 0;
        background: rgba(26,10,46,0.88);
        box-shadow: 0 -8px 28px rgba(0,0,0,0.3);
        transition: height 0.24s ease, border-radius 0.24s ease,
            background-color 0.24s ease;
    }

    .panel-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex: 0 0 55px;
        min-height: 55px;
        padding: 0 18px;
        border-bottom: 1px solid transparent;
        background: transparent;
    }

    .mobile-upgrades-toggle {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        height: 100%;
        padding: 0;
        border: 0;
        background: none;
        color: var(--secondary);
        font: inherit;
        font-size: 15px;
        font-weight: 800;
        letter-spacing: 1px;
        text-align: left;
        cursor: pointer;
    }

    .upgrades-toggle-indicator {
        display: inline;
        color: var(--text-secondary);
        transition: transform 0.24s ease;
    }

    .upgrades-overlay-close {
        display: none;
        flex: 0 0 40px;
        width: 40px;
        height: 40px;
        margin-left: 12px;
        border: 1px solid var(--card-border);
        border-radius: 50%;
        background: rgba(255,255,255,0.08);
        color: var(--text-primary);
        font-size: 20px;
        cursor: pointer;
    }

    .upgrades-list {
        display: none;
        min-height: 0;
        padding: 14px max(14px, env(safe-area-inset-right, 0px)) max(18px, env(safe-area-inset-bottom, 0px)) max(14px, env(safe-area-inset-left, 0px));
        overscroll-behavior: contain;
        touch-action: pan-y;
    }

    .upgrades-panel.is-open {
        height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
        border-radius: 0;
        border-bottom: 1px solid var(--card-border);
        background: rgba(26,10,46,0.84);
        box-shadow: none;
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
    }

    .upgrades-panel.is-open .panel-header {
        flex-basis: 60px;
        min-height: 60px;
        padding-left: max(18px, env(safe-area-inset-left, 0px));
        padding-right: max(12px, env(safe-area-inset-right, 0px));
        border-bottom-color: var(--card-border);
        background: rgba(26,10,46,0.45);
    }

    .upgrades-panel.is-open .mobile-upgrades-toggle {
        justify-content: flex-start;
    }

    .upgrades-panel.is-open .upgrades-toggle-indicator {
        display: none;
    }

    .upgrades-panel.is-open .upgrades-overlay-close {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .upgrades-panel.is-open .upgrades-list {
        display: flex;
        flex: 1 1 auto;
        overflow-y: auto;
        animation: upgrades-list-fade-in 0.18s ease both;
    }
}

@keyframes upgrades-list-fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 599px) and (max-height: 500px) and (orientation: portrait) {
    .candy-counter-area {
        top: 0;
        transform: scale(0.85);
        transform-origin: top center;
    }

    .xp-bar-container {
        top: 68px;
        transform: scale(0.9);
        transform-origin: top center;
    }

    #candy-canvas {
        width: 120px;
        height: 120px;
    }
}

@media (max-width: 900px) and (max-height: 500px) and (orientation: landscape) {
    .candy-counter-area {
        top: 0;
        transform: scale(0.85);
        transform-origin: top center;
    }

    .candy-wrapper {
        top: calc(50% - 28px);
    }
}

@media (max-height: 600px) {
    .menu-content {
        padding-top: max(12px, env(safe-area-inset-top));
        padding-bottom: max(12px, env(safe-area-inset-bottom));
        gap: 12px;
    }
    .menu-logo {
        padding: 12px 20px;
    }
    .logo-candy {
        width: 48px;
        height: 48px;
    }
    .menu-logo h1 {
        margin-top: 8px;
    }
    .menu-buttons {
        padding: 10px;
        gap: 6px;
    }
    .menu-buttons .btn {
        min-height: 40px;
        padding: 8px 12px;
    }
}